/* roulang page: index */
:root {
            --primary-purple: #6C3BF4;
            --primary-pink: #E8396A;
            --accent-green: #B6F05C;
            --accent-amber: #FFB23E;
            --bg-deep: #0D0B14;
            --bg-panel: #16131F;
            --bg-card: #1C1826;
            --bg-card-alt: #211B2E;
            --bg-footer: #0A0810;
            --text-primary: #F7F5FF;
            --text-body: #C9C5D8;
            --text-muted: #8A86A0;
            --text-link: #B9A7F8;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius-large: 24px;
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-badge: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
            --sidebar-width: 248px;
            --content-max: 1200px;
            --section-gap: 80px;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #D5C8FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ::selection {
            background: var(--primary-purple);
            color: #fff;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Layout */
        .layout {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-footer);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            z-index: 100;
            padding: 24px 16px;
            transition: transform var(--transition-base);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
            letter-spacing: -0.5px;
        }

        .sidebar-logo .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .sidebar-nav a::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 24px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }

        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }

        .sidebar-nav a:hover::before,
        .sidebar-nav a.active::before {
            transform: translateY(-50%) scaleY(1);
        }

        .sidebar-nav a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .sidebar-footer .btn-outline {
            flex: 1;
            padding: 8px 10px;
            font-size: 12px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            background: transparent;
            transition: all var(--transition-fast);
        }

        .sidebar-footer .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-footer);
            border-bottom: 1px solid var(--border-subtle);
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            z-index: 99;
        }

        .mobile-header .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
        }

        .mobile-header .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 800;
        }

        .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            background: transparent;
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-body);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background: var(--bg-footer);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 98;
            padding: 12px 16px;
            flex-direction: column;
            gap: 4px;
            transform: translateY(-8px);
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-base);
        }

        .mobile-drawer.open {
            display: flex;
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }

        /* Container */
        .container {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            text-transform: uppercase;
            letter-spacing: 1.2px;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: '';
            width: 20px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-purple), var(--primary-pink));
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
            line-height: 1.4;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 59, 244, 0.35);
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(108, 59, 244, 0.45);
            color: #fff;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.04);
            border-color: var(--border-subtle);
            color: var(--text-body);
        }

        .btn-outline:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .btn-read {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-link);
            border-radius: var(--radius-badge);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            background: transparent;
        }

        .btn-read:hover {
            border-color: var(--primary-purple);
            color: #fff;
            background: rgba(108, 59, 244, 0.1);
        }

        .btn-read .arrow {
            transition: transform var(--transition-fast);
            display: inline-block;
        }

        .btn-read:hover .arrow {
            transform: translateX(4px);
        }

        /* Hero */
        .hero {
            min-height: 90vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.18) 0%, rgba(13, 11, 20, 0.95) 40%, rgba(232, 57, 106, 0.12) 100%);
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 59, 244, 0.35) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -15%;
            left: 20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 57, 106, 0.25) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.22;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }

        .hero-text h1 .highlight {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.85;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .hero-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-badge .badge-number {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-badge .badge-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-subtle);
            aspect-ratio: 4 / 3;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-large);
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(13, 11, 20, 0.6) 100%);
            border-radius: var(--radius-large);
            pointer-events: none;
        }

        /* Data Strip Section */
        .data-strip {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 36px 0;
        }

        .data-strip-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            justify-content: space-between;
        }

        .data-strip-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .data-strip-item .num {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
        }

        .data-strip-item .label {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 100px;
            line-height: 1.5;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-purple), var(--primary-pink));
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        .card:hover::before {
            opacity: 1;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(108, 59, 244, 0.15);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }

        .card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .card-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            background: rgba(182, 240, 92, 0.1);
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        /* Scene Section */
        .scene-timeline {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .scene-card {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all var(--transition-base);
            align-items: center;
        }

        .scene-card:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-alt);
            transform: translateY(-3px);
        }

        .scene-card .scene-img {
            width: 110px;
            height: 80px;
            flex-shrink: 0;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .scene-card .scene-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .scene-card .scene-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Brand Intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro .brand-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .brand-intro .brand-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .brand-intro .brand-img {
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            aspect-ratio: 16 / 10;
        }

        .brand-intro .brand-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-large);
        }

        /* Schedule */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .schedule-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 14px;
            padding: 16px 20px;
            transition: all var(--transition-fast);
        }

        .schedule-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-alt);
        }

        .schedule-time {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-green);
            min-width: 70px;
            letter-spacing: 0.3px;
        }

        .schedule-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            flex: 1;
        }

        .schedule-tag {
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(108, 59, 244, 0.15);
            color: var(--text-link);
            font-weight: 500;
            white-space: nowrap;
        }

        /* Tactics Cards */
        .tactics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .tactic-card {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all var(--transition-base);
            align-items: center;
        }

        .tactic-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }

        .tactic-cover {
            width: 140px;
            height: 100px;
            flex-shrink: 0;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .tactic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .tactic-info .tag {
            display: inline-block;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(232, 57, 106, 0.15);
            color: #F0A0B8;
            font-weight: 600;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .tactic-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .tactic-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Gear Cards */
        .gear-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .gear-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 18px;
            transition: all var(--transition-base);
        }

        .gear-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
        }

        .gear-cover {
            aspect-ratio: 4 / 3;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            margin-bottom: 14px;
        }

        .gear-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .gear-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .gear-params {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .gear-param {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(255, 178, 62, 0.12);
            color: var(--accent-amber);
            font-weight: 500;
        }

        .gear-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Team Scroller */
        .team-scroller {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .team-scroller::-webkit-scrollbar {
            height: 6px;
        }

        .team-scroller::-webkit-scrollbar-track {
            background: var(--bg-panel);
            border-radius: 3px;
        }

        .team-scroller::-webkit-scrollbar-thumb {
            background: rgba(108, 59, 244, 0.4);
            border-radius: 3px;
        }

        .team-card {
            min-width: 210px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 18px;
            scroll-snap-align: start;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .team-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }

        .team-logo {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            margin-bottom: 12px;
            background: var(--bg-card-alt);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .team-logo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .team-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .team-card .team-tag {
            display: inline-block;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 20px;
            background: rgba(108, 59, 244, 0.15);
            color: var(--text-link);
            margin-bottom: 8px;
            font-weight: 500;
        }

        .team-card .team-stats {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 800;
            color: var(--accent-amber);
        }

        /* Comparison */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .compare-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 28px;
            transition: all var(--transition-base);
        }

        .compare-card.highlight {
            border-color: rgba(108, 59, 244, 0.4);
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.1) 0%, var(--bg-card) 60%);
        }

        .compare-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-card.highlight h3 {
            color: #D5C8FF;
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .compare-list li {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            padding-left: 22px;
            position: relative;
        }

        .compare-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-green);
        }

        .compare-card:not(.highlight) .compare-list li::before {
            content: '×';
            color: #E8708A;
        }

        /* News Section */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 22px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .news-date {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(182, 240, 92, 0.12);
            color: var(--accent-green);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
            align-self: flex-start;
        }

        .news-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .news-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 22px;
            transition: all var(--transition-fast);
        }

        .testimonial-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }

        .testimonial-card .avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            overflow: hidden;
            border: 2px solid rgba(108, 59, 244, 0.4);
            margin-bottom: 10px;
            background: var(--bg-card-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-link);
        }

        .testimonial-card .avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }

        .testimonial-card .nickname {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .testimonial-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Trust Bar */
        .trust-bar {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 28px 0;
        }

        .trust-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: space-between;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-body);
            font-weight: 500;
        }

        .trust-item .trust-icon {
            font-size: 18px;
            color: var(--accent-green);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 760px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question .q-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .faq-question .q-mark {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: #fff;
        }

        .faq-question .faq-toggle {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            color: var(--text-link);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
        }

        .faq-item.open .faq-answer {
            max-height: 220px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px 54px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.3) 0%, rgba(13, 11, 20, 0.98) 50%, rgba(232, 57, 106, 0.25) 100%);
            border-radius: var(--radius-large);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .cta-section h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .cta-section .cta-desc {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 480px;
            margin: 0 auto 28px;
            line-height: 1.75;
        }

        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-form input,
        .cta-form select {
            flex: 1 1 160px;
            min-width: 150px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary-purple);
            outline: 2px solid rgba(108, 59, 244, 0.3);
            outline-offset: 1px;
        }

        .cta-form select option {
            background: var(--bg-card);
            color: var(--text-body);
        }

        .cta-form .btn-primary {
            flex: 0 0 auto;
            min-width: 130px;
        }

        /* Floating CTA Bar */
        .floating-bar {
            position: fixed;
            bottom: 16px;
            left: calc(var(--sidebar-width) + 24px);
            right: 24px;
            background: rgba(10, 8, 16, 0.92);
            border: 1px solid var(--border-subtle);
            border-radius: 14px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            z-index: 90;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
            transition: all var(--transition-base);
        }

        .floating-bar.closed {
            transform: translateY(120%);
            opacity: 0;
            pointer-events: none;
        }

        .floating-bar .fb-text {
            font-size: 13px;
            color: var(--text-body);
            flex: 1;
            font-weight: 500;
        }

        .floating-bar .btn-primary {
            padding: 9px 18px;
            font-size: 13px;
            white-space: nowrap;
        }

        .floating-bar .fb-close {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-muted);
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            transition: all var(--transition-fast);
            border: none;
        }

        .floating-bar .fb-close:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 800;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: #fff;
            text-decoration: underline;
            text-decoration-color: var(--primary-purple);
            text-underline-offset: 3px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1199px) {
            :root {
                --sidebar-width: 210px;
            }
            .container {
                padding: 0 24px;
            }
            .gear-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer.open {
                display: flex;
            }
            .main-content {
                padding-top: 60px;
            }
            .hero {
                min-height: auto;
                padding: 56px 0;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-visual {
                max-width: 100%;
                aspect-ratio: 16 / 9;
            }
            .cards-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scene-timeline {
                grid-template-columns: 1fr;
            }
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .tactics-grid {
                grid-template-columns: 1fr;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .floating-bar {
                left: 16px;
                right: 16px;
                bottom: 12px;
                padding: 10px 16px;
            }
            #toggleFloatingBar .fb-close {
                display: none;
            }
            .floating-bar #toggleFloatingBarCloseInline {
                display: none;
            }
            section {
                padding: 56px 0;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .gear-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .data-strip-grid {
                gap: 16px;
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 8px;
                -webkit-overflow-scrolling: touch;
            }
            .data-strip-item {
                flex-shrink: 0;
            }
            .hero-badges {
                gap: 12px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-form input,
            .cta-form select {
                flex: 1 1 100%;
                min-width: 100%;
            }
            .cta-form .btn-primary {
                width: 100%;
                min-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section-title {
                font-size: 24px;
            }
            .floating-bar .fb-text {
                font-size: 11px;
            }
            .floating-bar .btn-primary {
                padding: 7px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .data-strip-item .num {
                font-size: 24px;
            }
            .schedule-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .team-card {
                min-width: 170px;
            }
            .floating-bar {
                flex-wrap: wrap;
                gap: 8px;
            }
            .floating-bar .fb-text {
                flex: 1 1 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary-purple: #6C3BF4;
            --primary-pink: #E8396A;
            --accent-green: #B6F05C;
            --accent-amber: #FFB23E;
            --bg-deep: #0D0B14;
            --bg-panel: #16131F;
            --bg-card: #1C1826;
            --bg-card-alt: #211B2E;
            --bg-footer: #0A0810;
            --text-primary: #F7F5FF;
            --text-body: #C9C5D8;
            --text-muted: #8A86A0;
            --text-link: #B9A7F8;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius-large: 24px;
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-badge: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
            --sidebar-width: 248px;
            --content-max: 1200px;
            --section-gap: 80px;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        @media (min-width: 992px) and (max-width: 1199px) {
            :root {
                --sidebar-width: 210px;
            }
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #D5C8FF;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 32px;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-footer);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            padding: 20px 16px;
            z-index: 100;
            overflow-y: auto;
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-nav a::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 24px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }
        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }
        .sidebar-nav a:hover::before,
        .sidebar-nav a.active::before {
            transform: translateY(-50%) scaleY(1);
        }
        .sidebar-nav a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .sidebar-footer .btn-outline {
            flex: 1;
            padding: 8px 10px;
            font-size: 12px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-footer .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-footer);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 99;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }
        .mobile-header .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }
        .mobile-header .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #fff;
            font-family: var(--font-num);
            margin-right: 8px;
        }
        .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            color: var(--text-body);
            font-size: 20px;
            transition: all var(--transition-fast);
        }
        .hamburger:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-footer);
            z-index: 98;
            padding: 16px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--border-subtle);
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }
        .mobile-drawer a .nav-icon {
            width: 20px;
            height: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }
        .page-header-section {
            padding: 48px 0 24px;
            background: var(--bg-deep);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--text-link);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--text-link);
            font-weight: 500;
        }
        .page-header-section h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 12px;
            font-family: var(--font-num);
        }
        .page-header-section .h1-sub {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
        }
        .section {
            padding: 40px 0;
        }
        .section-alt {
            background: var(--bg-panel);
        }
        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
            font-family: var(--font-num);
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 28px;
        }
        .section-title-wrap {
            margin-bottom: 24px;
        }
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: relative;
            padding-left: 0;
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            opacity: 0.3;
            border-radius: 2px;
            display: none;
        }
        .timeline-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .timeline-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .timeline-card .t-date {
            flex-shrink: 0;
            min-width: 80px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            gap: 2px;
        }
        .timeline-card .t-date .day {
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 900;
            color: var(--accent-green);
            line-height: 1;
        }
        .timeline-card .t-date .month {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            text-transform: uppercase;
        }
        .timeline-card .t-content {
            flex: 1;
            min-width: 0;
        }
        .timeline-card .t-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .timeline-card .t-content .t-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .timeline-card .t-content .t-meta .tag {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            background: rgba(108, 59, 244, 0.15);
            color: var(--text-link);
            border: 1px solid rgba(108, 59, 244, 0.25);
        }
        .timeline-card .t-content .t-meta .stage {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .timeline-card .t-content .t-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-link);
            padding: 6px 14px;
            border: 1px solid rgba(108, 59, 244, 0.3);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }
        .btn-read-more:hover {
            border-color: var(--primary-purple);
            background: rgba(108, 59, 244, 0.12);
            color: #fff;
        }
        .btn-read-more .arrow {
            font-size: 14px;
            transition: transform var(--transition-fast);
        }
        .btn-read-more:hover .arrow {
            transform: translateX(3px);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            color: #fff;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            transition: all var(--transition-fast);
            border: none;
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            color: #fff;
        }
        .btn-primary:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-body);
            font-weight: 500;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }
        .btn-more-wrap {
            text-align: center;
            padding: 20px 0 8px;
        }
        .data-strip {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .data-item {
            flex: 1;
            min-width: 160px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .data-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
        }
        .data-item .num {
            font-family: var(--font-num);
            font-size: 34px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-item .label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .topic-card .tc-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-card-alt);
            flex-shrink: 0;
        }
        .topic-card .tc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: transform var(--transition-base);
        }
        .topic-card:hover .tc-img img {
            transform: scale(1.04);
        }
        .topic-card .tc-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card .tc-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .topic-card .tc-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .cta-panel {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.18), rgba(232, 57, 106, 0.12));
            border: 1px solid rgba(108, 59, 244, 0.3);
            border-radius: var(--radius-large);
            padding: 36px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(108, 59, 244, 0.25), transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            font-family: var(--font-num);
        }
        .cta-panel p {
            font-size: 15px;
            color: var(--text-body);
            margin-bottom: 20px;
            position: relative;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            font-family: var(--font-num);
        }
        .faq-question h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            flex: 1;
            line-height: 1.5;
        }
        .faq-question .toggle-icon {
            color: var(--text-muted);
            font-size: 18px;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .toggle-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 20px 18px 60px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag {
            font-size: 13px;
            font-weight: 500;
            padding: 7px 16px;
            border-radius: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            color: var(--text-body);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-cloud .tag:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: rgba(182, 240, 92, 0.08);
        }
        .tag-cloud .tag.hot {
            border-color: rgba(182, 240, 92, 0.4);
            color: var(--accent-green);
            background: rgba(182, 240, 92, 0.06);
        }
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
        }
        .footer-brand .logo .logo-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #fff;
            font-family: var(--font-num);
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--text-link);
            text-decoration: underline;
            text-decoration-color: var(--primary-purple);
            text-underline-offset: 3px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--text-link);
        }
        @media (max-width: 1199px) {
            :root {
                --sidebar-width: 210px;
            }
            .container {
                padding: 0 24px;
            }
            .page-header-section h1 {
                font-size: 36px;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .container {
                padding: 0 20px;
            }
            .page-header-section {
                padding: 32px 0 20px;
            }
            .page-header-section h1 {
                font-size: 30px;
            }
            .section {
                padding: 28px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .timeline-card {
                flex-direction: column;
                gap: 12px;
                padding: 18px;
            }
            .timeline-card .t-date {
                flex-direction: row;
                align-items: center;
                gap: 8px;
                min-width: auto;
            }
            .timeline-card .t-date .day {
                font-size: 22px;
            }
            .data-strip {
                gap: 12px;
            }
            .data-item {
                min-width: 120px;
                padding: 16px 14px;
            }
            .data-item .num {
                font-size: 26px;
            }
            .cta-panel {
                padding: 28px 20px;
            }
            .cta-panel h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .page-header-section h1 {
                font-size: 26px;
                letter-spacing: -0.5px;
            }
            .section-title {
                font-size: 20px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel h2 {
                font-size: 19px;
            }
            .cta-panel p {
                font-size: 14px;
            }
            .btn-primary {
                padding: 10px 20px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .data-item {
                min-width: 100px;
                padding: 14px 10px;
            }
            .data-item .num {
                font-size: 22px;
            }
            .data-item .label {
                font-size: 11px;
            }
            .timeline-card .t-content h3 {
                font-size: 16px;
            }
            .timeline-card .t-content .t-desc {
                font-size: 13px;
                -webkit-line-clamp: 2;
            }
            .faq-question h3 {
                font-size: 14px;
            }
            .faq-answer {
                padding-left: 20px;
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .data-strip {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 8px;
            }
            .data-item {
                min-width: 130px;
                flex-shrink: 0;
            }
            .page-header-section h1 {
                font-size: 22px;
            }
            .timeline-card {
                padding: 14px;
            }
            .tag-cloud .tag {
                font-size: 12px;
                padding: 5px 12px;
            }
        }

/* roulang page: category2 */
:root {
  --primary-purple: #6C3BF4;
  --primary-pink: #E8396A;
  --accent-green: #B6F05C;
  --accent-amber: #FFB23E;
  --bg-deep: #0D0B14;
  --bg-panel: #16131F;
  --bg-card: #1C1826;
  --bg-card-alt: #211B2E;
  --bg-footer: #0A0810;
  --text-primary: #F7F5FF;
  --text-body: #C9C5D8;
  --text-muted: #8A86A0;
  --text-link: #B9A7F8;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.2);
  --radius-large: 24px;
  --radius-card: 20px;
  --radius-btn: 10px;
  --radius-badge: 8px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
  --sidebar-width: 248px;
  --content-max: 1200px;
  --section-gap: 80px;
  --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
  --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-body);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-card); }

a { color: var(--text-link); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: #D5C8FF; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}
button { cursor: pointer; }

.container { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; }

/* 左侧竖向导航 */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-footer);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
  z-index: 100;
  transition: transform var(--transition-base);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  text-decoration: none;
}

.sidebar-logo .logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  font-family: var(--font-num);
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.sidebar-logo .logo-text {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 20px;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  position: relative;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.sidebar-nav a::before {
  content: '';
  position: absolute;
  left: -16px;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 24px;
  background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
  border-radius: 0 3px 3px 0;
  transition: transform var(--transition-fast);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: #fff;
  background: rgba(108, 59, 244, 0.12);
}

.sidebar-nav a:hover::before,
.sidebar-nav a.active::before {
  transform: translateY(-50%) scaleY(1);
}

.sidebar-nav a .nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: 8px;
  align-items: center;
}

.sidebar-footer .btn-outline {
  flex: 1;
  padding: 8px 10px;
  font-size: 12px;
  text-align: center;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-btn);
  color: var(--text-muted);
  background: transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}

.sidebar-footer .btn-outline:hover {
  border-color: var(--border-hover);
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 移动端顶部导航 */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-footer);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 99;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.mobile-header .logo-text {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 18px;
  color: var(--text-primary);
}

.mobile-header .hamburger {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 20px;
  border-radius: var(--radius-btn);
  transition: background var(--transition-fast);
}

.mobile-header .hamburger:hover {
  background: rgba(255, 255, 255, 0.08);
}

.mobile-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 98;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer-panel {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 260px;
  background: var(--bg-footer);
  border-right: 1px solid var(--border-subtle);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  z-index: 99;
}

.mobile-drawer.open .mobile-drawer-panel {
  transform: translateX(0);
}

.mobile-drawer-panel .sidebar-nav { flex: 1; }

.mobile-drawer-panel .sidebar-footer { flex-direction: column; }

/* H1 区 */
.page-hero {
  padding: 60px 0 28px;
  background: radial-gradient(ellipse 80% 60% at 20% 0%, rgba(108, 59, 244, 0.18) 0%, transparent 60%),
              radial-gradient(ellipse 60% 50% at 85% 20%, rgba(232, 57, 106, 0.12) 0%, transparent 55%);
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: #D5C8FF; }

.breadcrumb .sep { color: var(--text-muted); font-size: 12px; }

.breadcrumb .current { color: var(--text-muted); }

.page-hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  line-height: 1.25;
  margin-bottom: 12px;
}

.page-hero .hero-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.7;
}

/* 分类简介 */
.category-intro {
  padding: 28px 0 12px;
}

.category-intro .intro-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-large);
  padding: 24px 28px;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
  border-left: 3px solid var(--primary-purple);
}

/* 通用 section */
.section {
  padding: 32px 0;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.section-header h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  position: relative;
  padding-left: 16px;
}

.section-header h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 28px;
  background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
  border-radius: 2px;
}

.section-header .section-note {
  font-size: 13px;
  color: var(--text-muted);
}

/* 攻略列表（左图右文） */
.strategy-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.strategy-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 16px;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.strategy-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.strategy-card .card-img {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border-radius: var(--radius-btn);
  flex-shrink: 0;
}

.strategy-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-btn);
}

.strategy-card .card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}

.strategy-card .card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.strategy-card .card-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: rgba(108, 59, 244, 0.16);
  color: #C5B3F8;
  font-size: 12px;
  font-weight: 500;
  border-radius: 20px;
}

.strategy-card .card-date {
  font-size: 12px;
  color: var(--text-muted);
}

.strategy-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.strategy-card .card-summary {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.strategy-card .read-more {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-link);
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
}

.strategy-card .read-more::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.strategy-card .read-more:hover {
  border-bottom-color: var(--primary-purple);
  color: #D5C8FF;
}

.strategy-card .read-more:hover::after {
  transform: translateX(4px);
}

/* 查看更多按钮 */
.more-btn-wrap {
  text-align: center;
  padding: 12px 0 20px;
}

.btn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-btn);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-more:hover {
  border-color: var(--primary-purple);
  background: rgba(108, 59, 244, 0.12);
  box-shadow: 0 4px 18px rgba(108, 59, 244, 0.25);
  transform: translateY(-1px);
}

/* 专题推荐 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.topic-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.topic-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.topic-card .topic-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.topic-card .topic-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

.topic-card .topic-body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.topic-card .topic-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(182, 240, 92, 0.12);
  color: var(--accent-green);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  align-self: flex-start;
}

.topic-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.topic-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 数据快报 */
.data-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.data-badge {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 20px 16px;
  text-align: center;
  transition: all var(--transition-base);
}

.data-badge:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
}

.data-badge .data-num {
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.data-badge .data-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

/* 热度标签 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-cloud .tag-item {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  font-size: 13px;
  color: var(--text-body);
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.tag-cloud .tag-item:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(182, 240, 92, 0.08);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(108, 59, 244, 0.08);
}

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(108, 59, 244, 0.2), rgba(232, 57, 106, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-link);
  font-weight: 700;
}

.faq-question h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  line-height: 1.5;
}

.faq-question .faq-toggle {
  font-size: 18px;
  color: var(--text-muted);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.open .faq-question .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
  padding: 0 20px;
}

.faq-item.open .faq-answer {
  max-height: 200px;
  padding: 0 20px 18px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  padding-left: 42px;
}

/* 转化 CTA */
.cta-card {
  background: linear-gradient(135deg, rgba(108, 59, 244, 0.85) 0%, rgba(232, 57, 106, 0.85) 100%);
  border-radius: var(--radius-large);
  padding: 32px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-card .cta-info {
  flex: 1;
  min-width: 220px;
  position: relative;
  z-index: 1;
}

.cta-card .cta-info h3 {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}

.cta-card .cta-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.cta-card .cta-form {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-card .cta-form input {
  flex: 1;
  min-width: 180px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-btn);
  color: #fff;
  font-size: 14px;
  transition: all var(--transition-fast);
}

.cta-card .cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.cta-card .cta-form input:focus {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.2);
  outline: 2px solid rgba(255, 255, 255, 0.4);
  outline-offset: 1px;
}

.cta-card .btn-cta {
  padding: 12px 24px;
  background: #fff;
  color: var(--primary-purple);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  transition: all var(--transition-base);
  white-space: nowrap;
  border: 2px solid transparent;
}

.cta-card .btn-cta:hover {
  background: var(--bg-deep);
  color: #fff;
  border-color: #fff;
  transform: scale(1.02);
}

.cta-card .btn-cta:focus {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

/* 术语板 */
.term-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.term-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 18px 20px;
  transition: all var(--transition-base);
}

.term-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
}

.term-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.term-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 页脚 */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0 20px;
  margin-top: 50px;
}

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 28px;
}

.site-footer .footer-brand .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.site-footer .footer-brand .logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
}

.site-footer .footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 260px;
}

.site-footer .footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.site-footer .footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  padding: 4px 0;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.site-footer .footer-col a:hover {
  color: #D5C8FF;
  border-bottom: 1px solid var(--primary-purple);
  display: inline-block;
}

.site-footer .footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.site-footer .footer-bottom a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-footer .footer-bottom a:hover {
  color: #D5C8FF;
}

/* 响应式断点 */
@media (max-width: 1199px) {
  :root { --sidebar-width: 210px; }
  .strategy-card { grid-template-columns: 200px 1fr; }
}

@media (max-width: 991px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .mobile-drawer { display: block; }
  .main-content { margin-left: 0; }
  .page-hero { padding-top: 80px; }
  .page-hero h1 { font-size: 32px; }
  .section-header h2 { font-size: 22px; }
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
  .data-strip { grid-template-columns: repeat(2, 1fr); }
  .site-footer .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .page-hero h1 { font-size: 26px; }
  .strategy-card { grid-template-columns: 1fr; gap: 12px; padding: 14px; }
  .strategy-card .card-img { aspect-ratio: 16/10; }
  .topic-grid { grid-template-columns: 1fr; }
  .data-strip { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .data-badge .data-num { font-size: 26px; }
  .section { padding: 20px 0; }
  .category-intro .intro-card { padding: 18px 16px; }
  .cta-card { flex-direction: column; align-items: flex-start; padding: 24px 18px; }
  .cta-card .cta-form { width: 100%; flex-direction: column; }
  .cta-card .cta-form input { width: 100%; min-width: auto; }
  .cta-card .btn-cta { width: 100%; text-align: center; }
  .term-grid { grid-template-columns: 1fr; }
  .site-footer .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .site-footer .footer-bottom { flex-direction: column; text-align: center; }
  .section-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .container { padding: 0 14px; }
  .page-hero h1 { font-size: 22px; }
  .page-hero .hero-sub { font-size: 14px; }
  .data-strip { grid-template-columns: 1fr 1fr; gap: 8px; }
  .data-badge { padding: 14px 10px; }
  .data-badge .data-num { font-size: 22px; }
  .strategy-card h3 { font-size: 16px; }
}

/* roulang page: category3 */
:root {
            --primary-purple: #6C3BF4;
            --primary-pink: #E8396A;
            --accent-green: #B6F05C;
            --accent-amber: #FFB23E;
            --bg-deep: #0D0B14;
            --bg-panel: #16131F;
            --bg-card: #1C1826;
            --bg-card-alt: #211B2E;
            --bg-footer: #0A0810;
            --text-primary: #F7F5FF;
            --text-body: #C9C5D8;
            --text-muted: #8A86A0;
            --text-link: #B9A7F8;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius-large: 24px;
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-badge: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
            --sidebar-width: 248px;
            --content-max: 1200px;
            --section-gap: 80px;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            display: flex;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #D5C8FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #0A0810;
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            padding: 24px 16px 20px;
            z-index: 100;
            transition: transform var(--transition-base);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
            overflow-y: auto;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-nav a::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 24px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }
        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }
        .sidebar-nav a:hover::before,
        .sidebar-nav a.active::before {
            transform: translateY(-50%) scaleY(1);
        }
        .sidebar-nav a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .sidebar-footer .btn-outline {
            flex: 1;
            padding: 8px 10px;
            font-size: 12px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-footer .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            min-width: 0;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: #0A0810;
            border-bottom: 1px solid var(--border-subtle);
            z-index: 95;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }
        .mobile-header .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
        }
        .mobile-header .logo .logo-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
            color: #fff;
        }
        .hamburger {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            transition: all var(--transition-fast);
        }
        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger:hover {
            border-color: var(--border-hover);
        }
        .mobile-drawer {
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 8, 16, 0.98);
            z-index: 94;
            padding: 20px;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 20px;
            color: var(--text-muted);
            font-size: 16px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }
        .mobile-drawer a .nav-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .mobile-overlay {
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 93;
            display: none;
        }
        .mobile-overlay.active {
            display: block;
        }

        .container {
            width: 100%;
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        .page-hero {
            padding: 70px 0 36px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(ellipse at 20% 0%, rgba(108, 59, 244, 0.22), transparent 55%), radial-gradient(ellipse at 85% 30%, rgba(232, 57, 106, 0.16), transparent 50%), var(--bg-deep);
            border-bottom: 1px solid var(--border-subtle);
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(108, 59, 244, 0.5), rgba(232, 57, 106, 0.5), transparent);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        .breadcrumb a {
            color: var(--text-link);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: #D5C8FF;
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .page-hero .hero-sub {
            font-size: 16px;
            color: var(--text-body);
            max-width: 700px;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }
        .hero-gradient-line {
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-purple), var(--primary-pink));
            border-radius: 4px;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        section {
            padding: var(--section-gap) 0;
            position: relative;
        }
        section.alt-bg {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 720px;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            background: rgba(182, 240, 92, 0.08);
            border: 1px solid rgba(182, 240, 92, 0.2);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            color: #fff;
            border: none;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            color: #fff;
        }
        .btn-primary:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-body);
        }
        .btn-outline:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }
        .btn-outline:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .gear-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .gear-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .gear-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .gear-card .card-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            border-radius: 0;
        }
        .gear-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .gear-card:hover .card-img img {
            transform: scale(1.05);
        }
        .gear-card .card-img .img-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(13, 11, 20, 0.7);
            border: 1px solid var(--border-subtle);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .gear-card .card-img .score-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
            font-family: var(--font-num);
            color: #0D0B14;
            background: var(--accent-amber);
        }
        .gear-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .gear-card .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: -0.2px;
        }
        .gear-card .card-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .gear-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }
        .gear-card .card-meta .chip {
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-link);
            background: rgba(185, 167, 248, 0.1);
            border: 1px solid rgba(185, 167, 248, 0.15);
            transition: all var(--transition-fast);
        }
        .gear-card .card-meta .chip:hover {
            background: rgba(185, 167, 248, 0.18);
        }
        .gear-card .card-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .gear-card .card-action {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-link);
            transition: all var(--transition-fast);
        }
        .gear-card .card-action::after {
            content: '→';
            transition: transform var(--transition-fast);
        }
        .gear-card .card-action:hover {
            color: #D5C8FF;
        }
        .gear-card .card-action:hover::after {
            transform: translateX(4px);
        }

        .load-more-wrapper {
            display: flex;
            justify-content: center;
            margin-top: 36px;
        }

        .data-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: stretch;
        }
        .data-strip .data-item {
            flex: 1;
            min-width: 150px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .data-strip .data-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
        }
        .data-strip .data-num {
            font-size: 34px;
            font-weight: 900;
            font-family: var(--font-num);
            color: var(--accent-green);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .data-strip .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag {
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-cloud .tag:hover {
            color: #fff;
            border-color: rgba(182, 240, 92, 0.4);
            background: rgba(182, 240, 92, 0.08);
        }
        .tag-cloud .tag.hot {
            color: var(--accent-green);
            border-color: rgba(182, 240, 92, 0.3);
            background: rgba(182, 240, 92, 0.06);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .topic-card .topic-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            border-radius: 0;
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card .topic-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-amber);
            margin-bottom: 6px;
        }
        .topic-card .topic-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
            flex: 1;
        }

        .faq-list {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            line-height: 1.5;
        }
        .faq-question .faq-num {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            font-family: var(--font-num);
            color: #fff;
        }
        .faq-question .faq-icon {
            margin-left: auto;
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            position: relative;
            transition: transform var(--transition-fast);
        }
        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            background: var(--text-muted);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .faq-question .faq-icon::before {
            width: 14px;
            height: 2px;
            transform: translate(-50%, -50%);
        }
        .faq-question .faq-icon::after {
            width: 2px;
            height: 14px;
            transform: translate(-50%, -50%);
        }
        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) scaleY(0);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            padding-left: 42px;
        }

        .cta-panel {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.15), rgba(232, 57, 106, 0.12)), var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 48px 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            align-items: center;
            justify-content: space-between;
        }
        .cta-panel .cta-text h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .cta-panel .cta-text p {
            font-size: 15px;
            color: var(--text-body);
            max-width: 480px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            flex: 1;
            min-width: 280px;
            max-width: 460px;
        }
        .cta-form input,
        .cta-form select {
            flex: 1;
            min-width: 140px;
            padding: 12px 16px;
            background: rgba(13, 11, 20, 0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }
        .cta-form input::placeholder {
            color: var(--text-muted);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary-purple);
            outline: none;
        }
        .cta-form select option {
            background: var(--bg-card);
            color: var(--text-primary);
        }
        .cta-form .form-hint {
            width: 100%;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-brand .logo .logo-mark {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #fff;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            transition: all var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
            text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-link);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #D5C8FF;
        }

        @media (max-width: 1199px) {
            :root {
                --sidebar-width: 200px;
                --section-gap: 64px;
                --content-max: 960px;
            }
            .sidebar {
                padding: 20px 12px 16px;
            }
            .sidebar-nav a {
                padding: 9px 12px;
                font-size: 13px;
                gap: 8px;
            }
            .sidebar-logo .logo-text {
                font-size: 18px;
            }
            .gear-grid {
                gap: 22px;
            }
            .topic-grid {
                gap: 18px;
            }
        }

        @media (max-width: 991px) {
            body {
                flex-direction: column;
            }
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-header {
                display: flex;
            }
            .container {
                padding: 0 20px;
            }
            .page-hero {
                padding: 48px 0 28px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .gear-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .data-strip {
                gap: 14px;
            }
            .data-strip .data-item {
                min-width: 120px;
                padding: 16px 18px;
            }
            .data-strip .data-num {
                font-size: 28px;
            }
            .cta-panel {
                padding: 36px 28px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-form {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .page-hero {
                padding: 36px 0 24px;
            }
            .page-hero h1 {
                font-size: 28px;
                letter-spacing: -0.3px;
            }
            .page-hero .hero-sub {
                font-size: 14px;
            }
            section {
                padding: 44px 0;
            }
            .section-header {
                margin-bottom: 24px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .gear-grid {
                grid-template-columns: 1fr;
            }
            .gear-card .card-body {
                padding: 16px 18px 18px;
            }
            .gear-card .card-title {
                font-size: 17px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 10px;
                padding-bottom: 8px;
                -webkit-overflow-scrolling: touch;
            }
            .data-strip .data-item {
                min-width: 130px;
                flex-shrink: 0;
                padding: 14px 16px;
            }
            .data-strip .data-num {
                font-size: 24px;
            }
            .cta-panel {
                padding: 28px 20px;
                gap: 20px;
            }
            .cta-panel .cta-text h2 {
                font-size: 22px;
            }
            .cta-form {
                gap: 10px;
            }
            .cta-form input,
            .cta-form select {
                min-width: 100%;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
                gap: 10px;
            }
            .faq-answer p {
                padding-left: 0;
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 20px;
            }
            .gear-card .card-title {
                font-size: 16px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .cta-panel .cta-text h2 {
                font-size: 20px;
            }
        }

/* roulang page: category6 */
:root {
            --primary-purple: #6C3BF4;
            --primary-pink: #E8396A;
            --accent-green: #B6F05C;
            --accent-amber: #FFB23E;
            --bg-deep: #0D0B14;
            --bg-panel: #16131F;
            --bg-card: #1C1826;
            --bg-card-alt: #211B2E;
            --bg-footer: #0A0810;
            --text-primary: #F7F5FF;
            --text-body: #C9C5D8;
            --text-muted: #8A86A0;
            --text-link: #B9A7F8;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius-large: 24px;
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-badge: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
            --sidebar-width: 248px;
            --content-max: 1200px;
            --section-gap: 80px;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            display: flex;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #D5C8FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
            letter-spacing: -0.5px;
        }

        .sidebar-logo .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .sidebar-nav a::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 24px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }

        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }

        .sidebar-nav a:hover::before,
        .sidebar-nav a.active::before {
            transform: translateY(-50%) scaleY(1);
        }

        .sidebar-nav a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .sidebar-footer .btn-outline {
            flex: 1;
            padding: 8px 10px;
            font-size: 12px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            background: transparent;
            transition: all var(--transition-fast);
        }

        .sidebar-footer .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        .container {
            width: 100%;
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 36px;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-footer);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }

        .mobile-header .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 20px;
            background: transparent;
        }

        .mobile-header .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-header .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            color: #fff;
            font-family: var(--font-num);
        }

        .mobile-header .header-spacer {
            flex: 1;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-footer);
            z-index: 998;
            padding: 20px 16px;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
            border-top: 1px solid var(--border-subtle);
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }

        .mobile-drawer a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        aside.sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-footer);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            padding: 22px 16px;
            z-index: 1000;
            overflow-y: auto;
        }

        .page-header {
            padding: 64px 0 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-link);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: #D5C8FF;
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--text-body);
        }

        .page-header h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 10px;
            line-height: 1.25;
        }

        .page-header .h1-sub {
            font-size: 17px;
            color: var(--text-body);
            max-width: 700px;
            line-height: 1.7;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-alt {
            background: var(--bg-panel);
            border-radius: var(--radius-large);
            margin: 0 0 var(--section-gap);
            padding: var(--section-gap) 36px;
        }

        .section-title-wrapper {
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .intro-card {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.08), rgba(232, 57, 106, 0.08)), var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: flex-start;
            justify-content: space-between;
        }

        .intro-card .intro-text {
            flex: 2;
            min-width: 260px;
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .intro-card .intro-stat {
            flex: 1;
            min-width: 200px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .intro-stat .stat-item {
            display: flex;
            align-items: baseline;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .intro-stat .stat-item strong {
            font-size: 26px;
            font-weight: 900;
            font-family: var(--font-num);
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .scroll-card-row {
            display: flex;
            gap: 24px;
            overflow-x: auto;
            padding-bottom: 18px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
        }

        .scroll-card-row::-webkit-scrollbar {
            height: 6px;
        }

        .scroll-card-row::-webkit-scrollbar-track {
            background: transparent;
        }

        .scroll-card-row::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.12);
            border-radius: 3px;
        }

        .community-card {
            flex: 0 0 320px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .community-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
            transform: translateY(-4px);
        }

        .community-card .card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            border-radius: 0;
        }

        .community-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .community-card:hover .card-img img {
            transform: scale(1.04);
        }

        .community-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(13, 11, 20, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-badge);
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
        }

        .community-card .card-body {
            padding: 20px 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .community-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
        }

        .community-card .card-summary {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            flex: 1;
        }

        .community-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 8px;
            border-top: 1px solid var(--border-subtle);
        }

        .community-card .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-link);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .community-card .read-more:hover {
            color: #D5C8FF;
            gap: 8px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 22px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-fast);
            border: none;
            box-shadow: 0 4px 14px rgba(108, 59, 244, 0.25);
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            box-shadow: 0 6px 20px rgba(108, 59, 244, 0.4);
            color: #fff;
        }

        .btn-primary:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .btn-outline {
            border: 1px solid var(--border-subtle);
            background: transparent;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 14px;
            padding: 10px 18px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-outline:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .load-more-wrap {
            display: flex;
            justify-content: center;
            padding: 16px 0 0;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .topic-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .topic-card .topic-label {
            display: inline-flex;
            width: fit-content;
            background: rgba(108, 59, 244, 0.12);
            border: 1px solid rgba(108, 59, 244, 0.25);
            border-radius: var(--radius-badge);
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-link);
        }

        .topic-card .topic-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
        }

        .topic-card .topic-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .data-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }

        .data-item .data-number {
            font-size: 34px;
            font-weight: 900;
            font-family: var(--font-num);
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            margin-bottom: 6px;
        }

        .data-item .data-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-cloud a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-badge);
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition-fast);
        }

        .tag-cloud a:hover {
            background: rgba(108, 59, 244, 0.12);
            border-color: rgba(108, 59, 244, 0.3);
            color: #fff;
            transform: translateY(-2px);
        }

        .tag-cloud a .tag-count {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 600;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-hover);
        }

        .faq-item details {
            padding: 0;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 22px;
            cursor: pointer;
            list-style: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::before {
            content: '+';
            font-size: 20px;
            font-weight: 700;
            color: var(--text-link);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            width: 20px;
            text-align: center;
        }

        .faq-item details[open] summary::before {
            content: '−';
            color: var(--accent-green);
            transform: rotate(180deg);
        }

        .faq-item summary:hover {
            color: var(--text-link);
        }

        .faq-item .faq-answer {
            padding: 0 22px 20px 54px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .cta-panel {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.16), rgba(232, 57, 106, 0.16)), var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 44px 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
            justify-content: space-between;
        }

        .cta-panel .cta-text {
            flex: 2;
            min-width: 250px;
        }

        .cta-panel .cta-text h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .cta-panel .cta-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
        }

        .cta-panel .cta-form {
            flex: 1;
            min-width: 260px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-panel .cta-form input,
        .cta-panel .cta-form select {
            background: rgba(13, 11, 20, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            padding: 11px 14px;
            font-size: 14px;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            width: 100%;
        }

        .cta-panel .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-panel .cta-form input:focus,
        .cta-panel .cta-form select:focus {
            border-color: var(--primary-purple);
            box-shadow: 0 0 0 3px rgba(108, 59, 244, 0.15);
        }

        .cta-panel .cta-form select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238A86A0' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            cursor: pointer;
        }

        .cta-panel .cta-form select option {
            background: var(--bg-card);
            color: var(--text-primary);
        }

        .cta-panel .cta-form .btn-primary {
            width: 100%;
            justify-content: center;
        }

        .cta-panel .cta-form .form-hint {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .footer-brand .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .footer-col a {
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            position: relative;
            width: fit-content;
        }

        .footer-col a:hover {
            color: var(--text-link);
        }

        .footer-col a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            transition: width var(--transition-fast);
            border-radius: 1px;
        }

        .footer-col a:hover::after {
            width: 100%;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--text-link);
        }

        .footer-bottom span {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .section-divider {
            border: none;
            border-top: 1px solid var(--border-subtle);
            opacity: 0.5;
        }

        @media (max-width: 1199px) {
            :root {
                --sidebar-width: 200px;
            }
            .container {
                padding: 0 24px;
            }
            .section-alt {
                padding: 56px 24px;
            }
            .page-header h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
            .cta-panel {
                padding: 32px 28px;
            }
        }

        @media (max-width: 991px) {
            body {
                flex-direction: column;
            }
            aside.sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer {
                display: none;
            }
            .mobile-drawer.open {
                display: flex;
            }
            .page-header {
                padding: 32px 0 16px;
            }
            .page-header h1 {
                font-size: 28px;
            }
            .section {
                padding: 56px 0;
            }
            .section-alt {
                padding: 40px 20px;
                margin: 0 0 56px;
            }
            .section-title {
                font-size: 24px;
            }
            .intro-card {
                padding: 24px;
                flex-direction: column;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .data-item .data-number {
                font-size: 28px;
            }
            .cta-panel {
                padding: 28px 22px;
                flex-direction: column;
                align-items: stretch;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .community-card {
                flex: 0 0 280px;
            }
        }

        @media (max-width: 519px) {
            .container {
                padding: 0 16px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .section {
                padding: 40px 0;
            }
            .section-alt {
                padding: 28px 16px;
                margin: 0 0 40px;
            }
            .section-title {
                font-size: 22px;
            }
            .intro-card {
                padding: 18px;
                gap: 16px;
            }
            .intro-card .intro-text {
                font-size: 14px;
            }
            .intro-stat .stat-item strong {
                font-size: 22px;
            }
            .community-card {
                flex: 0 0 260px;
            }
            .data-strip {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .data-item {
                padding: 16px;
            }
            .data-item .data-number {
                font-size: 24px;
            }
            .cta-panel {
                padding: 22px 16px;
            }
            .cta-panel .cta-text h2 {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px 42px;
                font-size: 13px;
            }
            .tag-cloud a {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --primary-purple: #6C3BF4;
            --primary-pink: #E8396A;
            --accent-green: #B6F05C;
            --accent-amber: #FFB23E;
            --bg-deep: #0D0B14;
            --bg-panel: #16131F;
            --bg-card: #1C1826;
            --bg-card-alt: #211B2E;
            --bg-footer: #0A0810;
            --text-primary: #F7F5FF;
            --text-body: #C9C5D8;
            --text-muted: #8A86A0;
            --text-link: #B9A7F8;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius-large: 24px;
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-badge: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
            --sidebar-width: 248px;
            --content-max: 1200px;
            --section-gap: 64px;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        a:hover {
            color: #D5C8FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ::selection {
            background: rgba(108, 59, 244, 0.45);
            color: #fff;
        }

        /* Layout shell */
        .layout-shell {
            display: flex;
            min-height: 100vh;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            min-width: 0;
        }

        .container {
            width: 100%;
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        /* Sidebar navigation - desktop */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-footer);
            border-right: 1px solid var(--border-subtle);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 24px 16px;
            transition: width var(--transition-base);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-subtle);
            flex-shrink: 0;
        }

        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
            overflow-y: auto;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .sidebar-nav a::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 24px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }

        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }

        .sidebar-nav a:hover::before,
        .sidebar-nav a.active::before {
            transform: translateY(-50%) scaleY(1);
        }

        .sidebar-nav a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            gap: 8px;
            align-items: center;
            flex-shrink: 0;
        }

        .sidebar-footer .btn-outline {
            flex: 1;
            padding: 8px 10px;
            font-size: 12px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            background: transparent;
            transition: all var(--transition-fast);
        }

        .sidebar-footer .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        /* Mobile header */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-footer);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }

        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
        }

        .mobile-header .mobile-logo .logo-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
            font-weight: 800;
        }

        .mobile-header .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border-subtle);
            background: transparent;
            transition: border-color var(--transition-fast);
        }

        .mobile-header .hamburger:hover {
            border-color: var(--border-hover);
        }

        .mobile-header .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-footer);
            z-index: 998;
            padding: 16px;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            position: relative;
        }

        .mobile-drawer a::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 22px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }

        .mobile-drawer a:hover::before,
        .mobile-drawer a.active::before {
            transform: translateY(-50%) scaleY(1);
        }

        .mobile-drawer a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            border: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            color: #fff;
            box-shadow: 0 6px 20px rgba(108, 59, 244, 0.4);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            background: transparent;
            color: var(--text-body);
            font-weight: 500;
            font-size: 14px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-green);
            font-size: 13px;
            font-weight: 600;
            transition: all var(--transition-fast);
            border-bottom: 1px solid transparent;
            padding-bottom: 2px;
        }

        .btn-read-more:hover {
            color: #D3FF7E;
            border-bottom-color: var(--accent-green);
            gap: 10px;
        }

        /* Breadcrumb & H1 area */
        .page-header-section {
            padding-top: 56px;
            padding-bottom: 28px;
            background: radial-gradient(ellipse at top left, rgba(108, 59, 244, 0.18), transparent 55%), radial-gradient(ellipse at top right, rgba(232, 57, 106, 0.12), transparent 45%);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--text-link);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: var(--text-body);
            font-weight: 500;
        }

        .page-header-section h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .page-header-section .h1-accent {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-header-section .page-sub {
            font-size: 16px;
            color: var(--text-body);
            max-width: 680px;
            line-height: 1.8;
        }

        /* Category intro */
        .category-intro-section {
            padding-top: 20px;
            padding-bottom: 28px;
        }

        .intro-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 28px 32px;
            display: flex;
            align-items: flex-start;
            gap: 20px;
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-base);
        }

        .intro-panel:hover {
            border-color: var(--border-hover);
        }

        .intro-panel .intro-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            flex-shrink: 0;
        }

        .intro-panel .intro-text h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .intro-panel .intro-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 8px;
        }

        .intro-panel .intro-text p:last-child {
            margin-bottom: 0;
        }

        /* Training cards grid */
        .training-grid-section {
            padding-top: 20px;
            padding-bottom: 20px;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-header .section-tag {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            background: var(--bg-card);
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border-subtle);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .training-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .training-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        .training-card .card-image {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }

        .training-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }

        .training-card:hover .card-image img {
            transform: scale(1.04);
        }

        .training-card .card-image .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(13, 11, 20, 0.9), transparent);
            pointer-events: none;
        }

        .training-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(13, 11, 20, 0.75);
            backdrop-filter: blur(8px);
            color: var(--accent-green);
            border: 1px solid rgba(182, 240, 92, 0.35);
        }

        .training-card .card-difficulty {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(13, 11, 20, 0.75);
            backdrop-filter: blur(8px);
            color: var(--accent-amber);
            border: 1px solid rgba(255, 178, 62, 0.35);
        }

        .training-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .training-card .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
            letter-spacing: -0.2px;
        }

        .training-card .card-body .card-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .training-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 14px;
            border-top: 1px solid var(--border-subtle);
            flex-wrap: wrap;
        }

        .training-card .card-meta .meta-info {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .training-card .card-meta .meta-info span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .training-card .card-meta .meta-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--text-muted);
        }

        .load-more-wrapper {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }

        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-body);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition-base);
        }

        .btn-load-more:hover {
            border-color: rgba(108, 59, 244, 0.5);
            background: rgba(108, 59, 244, 0.12);
            color: #fff;
            box-shadow: 0 6px 20px rgba(108, 59, 244, 0.2);
            transform: translateY(-2px);
        }

        /* Data strip */
        .data-strip-section {
            padding-top: 36px;
            padding-bottom: 36px;
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }

        .data-strip .data-item {
            text-align: center;
            padding: 8px 12px;
        }

        .data-strip .data-item .data-num {
            font-family: var(--font-num);
            font-size: 34px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .data-strip .data-item .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* Topic recommendation */
        .topic-recommend-section {
            padding-top: 36px;
            padding-bottom: 36px;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-card-alt);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        .topic-card .topic-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            flex-shrink: 0;
        }

        .topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }

        .topic-card:hover .topic-image img {
            transform: scale(1.04);
        }

        .topic-card .topic-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-card .topic-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .topic-card .topic-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .topic-card .topic-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        /* FAQ */
        .faq-section {
            padding-top: 36px;
            padding-bottom: 36px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border-hover);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            transition: background-color var(--transition-fast);
            user-select: none;
        }

        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-item .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #fff;
            font-weight: 700;
        }

        .faq-item .faq-question h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            flex: 1;
            line-height: 1.5;
        }

        .faq-item .faq-question .faq-toggle {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-toggle {
            transform: rotate(45deg);
            color: var(--accent-green);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 60px;
        }

        .faq-item .faq-answer p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* CTA form */
        .cta-section {
            padding-top: 36px;
            padding-bottom: 56px;
            margin-bottom: 20px;
        }

        .cta-panel {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.18), rgba(232, 57, 106, 0.12)), var(--bg-card-alt);
            border: 1px solid rgba(108, 59, 244, 0.3);
            border-radius: var(--radius-large);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            box-shadow: var(--shadow-card);
        }

        .cta-panel .cta-info h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.35;
        }

        .cta-panel .cta-info p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .cta-panel .cta-form .form-group {
            margin-bottom: 14px;
        }

        .cta-panel .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
            margin-bottom: 6px;
        }

        .cta-panel .cta-form input,
        .cta-panel .cta-form select {
            width: 100%;
            padding: 11px 14px;
            background: var(--bg-deep);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .cta-panel .cta-form input:focus,
        .cta-panel .cta-form select:focus {
            border-color: var(--primary-purple);
            box-shadow: 0 0 0 3px rgba(108, 59, 244, 0.2);
        }

        .cta-panel .cta-form select option {
            background: var(--bg-deep);
            color: var(--text-primary);
        }

        .cta-panel .cta-form .form-hint {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
        }

        .cta-panel .cta-form .btn-primary {
            width: 100%;
            margin-top: 6px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 32px;
            margin-top: auto;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .site-footer .footer-brand .logo .logo-mark {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            font-weight: 800;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .site-footer .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-col a:hover {
            color: var(--text-link);
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 8px;
        }

        .site-footer .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--text-link);
        }

        /* Responsive */
        @media (max-width: 1199px) {
            :root {
                --sidebar-width: 200px;
            }
            .container {
                padding: 0 24px;
            }
            .page-header-section h1 {
                font-size: 34px;
            }
            .training-grid {
                gap: 18px;
            }
            .topic-grid {
                gap: 16px;
            }
            .data-strip {
                padding: 22px 16px;
            }
            .data-strip .data-item .data-num {
                font-size: 28px;
            }
        }

        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-header {
                display: flex;
            }
            .container {
                padding: 0 20px;
            }
            section {
                padding: 48px 0;
            }
            .page-header-section {
                padding-top: 32px;
                padding-bottom: 20px;
            }
            .page-header-section h1 {
                font-size: 30px;
            }
            .training-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .topic-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .cta-panel {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 28px 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
            }
            .container {
                padding: 0 16px;
            }
            section {
                padding: 36px 0;
            }
            .page-header-section h1 {
                font-size: 26px;
                line-height: 1.4;
            }
            .page-header-section .page-sub {
                font-size: 14px;
            }
            .intro-panel {
                padding: 20px 18px;
                flex-direction: column;
                gap: 14px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .section-header .section-tag {
                font-size: 12px;
                padding: 4px 10px;
            }
            .training-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .training-card .card-body {
                padding: 16px 16px 18px;
            }
            .training-card .card-body h3 {
                font-size: 17px;
            }
            .training-card .card-body .card-desc {
                font-size: 13px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 18px 12px;
                gap: 10px;
            }
            .data-strip .data-item .data-num {
                font-size: 24px;
            }
            .data-strip .data-item .data-label {
                font-size: 11px;
            }
            .cta-panel {
                padding: 22px 16px;
                border-radius: var(--radius-card);
            }
            .cta-panel .cta-info h2 {
                font-size: 20px;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                gap: 10px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px 50px;
            }
            .faq-item .faq-answer p {
                font-size: 13px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 18px;
                font-size: 13px;
            }
            .btn-load-more {
                padding: 12px 24px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .page-header-section h1 {
                font-size: 22px;
            }
            .training-card .card-body h3 {
                font-size: 16px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .cta-panel .cta-info h2 {
                font-size: 18px;
            }
        }

/* roulang page: category4 */
:root {
            --primary-purple: #6C3BF4;
            --primary-pink: #E8396A;
            --accent-green: #B6F05C;
            --accent-amber: #FFB23E;
            --bg-deep: #0D0B14;
            --bg-panel: #16131F;
            --bg-card: #1C1826;
            --bg-card-alt: #211B2E;
            --bg-footer: #0A0810;
            --text-primary: #F7F5FF;
            --text-body: #C9C5D8;
            --text-muted: #8A86A0;
            --text-link: #B9A7F8;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.2);
            --radius-large: 24px;
            --radius-card: 20px;
            --radius-btn: 10px;
            --radius-badge: 8px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.5);
            --sidebar-width: 248px;
            --content-max: 1200px;
            --section-gap: 80px;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'Inter', 'Rajdhani', 'Orbitron', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        @media (min-width: 992px) and (max-width: 1199px) {
            :root {
                --sidebar-width: 200px;
                --content-max: 960px;
            }
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #D5C8FF;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-footer);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            padding: 20px 16px 18px;
            z-index: 90;
            overflow-y: auto;
            transition: transform var(--transition-base);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .sidebar-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            font-family: var(--font-num);
            letter-spacing: -0.5px;
        }
        .sidebar-logo .logo-text {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-nav a::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%) scaleY(0);
            width: 3px;
            height: 24px;
            background: linear-gradient(180deg, var(--primary-purple), var(--primary-pink));
            border-radius: 0 3px 3px 0;
            transition: transform var(--transition-fast);
        }
        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            color: #fff;
            background: rgba(108, 59, 244, 0.12);
        }
        .sidebar-nav a:hover::before,
        .sidebar-nav a.active::before {
            transform: translateY(-50%) scaleY(1);
        }
        .sidebar-nav a .nav-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .sidebar-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .sidebar-footer .btn-outline {
            flex: 1;
            padding: 8px 10px;
            font-size: 12px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-muted);
            background: transparent;
            transition: all var(--transition-fast);
        }
        .sidebar-footer .btn-outline:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 58px;
            background: rgba(10, 8, 16, 0.95);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 100;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            backdrop-filter: blur(12px);
        }
        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 17px;
            color: var(--text-primary);
        }
        .mobile-header .mobile-logo .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }
        .mobile-header .hamburger {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-subtle);
            color: var(--text-body);
            font-size: 16px;
            transition: all var(--transition-fast);
        }
        .mobile-header .hamburger:hover {
            border-color: var(--border-hover);
            color: #fff;
        }
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 94;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }
        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 260px;
            height: 100vh;
            background: var(--bg-footer);
            border-right: 1px solid var(--border-subtle);
            z-index: 95;
            display: flex;
            flex-direction: column;
            padding: 20px 16px 18px;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
        }
        .drawer.open {
            transform: translateX(0);
        }
        .drawer .sidebar-nav {
            flex: 1;
            margin-top: 12px;
        }
        .drawer .sidebar-logo {
            border-bottom: 1px solid var(--border-subtle);
        }
        .container {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 32px;
        }
        .section {
            padding: var(--section-gap) 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }
        .page-header {
            padding: 56px 0 36px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(108, 59, 244, 0.12) 0%, rgba(232, 57, 106, 0.06) 40%, var(--bg-deep) 100%);
            border-bottom: 1px solid var(--border-subtle);
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(108, 59, 244, 0.25) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 10px;
        }
        .breadcrumb .current {
            color: var(--text-link);
            font-weight: 500;
        }
        .page-header h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .page-header .header-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.8;
            max-width: 720px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .section-head .title-group {
            flex: 1;
            min-width: 260px;
        }
        .section-head .title-group h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 8px;
        }
        .section-head .title-group p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-head .action-link {
            font-size: 13px;
            color: var(--text-link);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            padding: 8px 14px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }
        .section-head .action-link:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            color: #fff;
            border: none;
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: scale(1.02);
            color: #fff;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-body);
        }
        .btn-secondary:hover {
            border-color: var(--border-hover);
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.2px;
        }
        .badge-green {
            background: rgba(182, 240, 92, 0.12);
            color: var(--accent-green);
            border: 1px solid rgba(182, 240, 92, 0.25);
        }
        .badge-amber {
            background: rgba(255, 178, 62, 0.12);
            color: var(--accent-amber);
            border: 1px solid rgba(255, 178, 62, 0.25);
        }
        .badge-purple {
            background: rgba(108, 59, 244, 0.15);
            color: #C5B2FF;
            border: 1px solid rgba(108, 59, 244, 0.3);
        }
        .intro-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 28px 32px;
            margin-bottom: 12px;
        }
        .intro-panel p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            max-width: 900px;
        }
        .intro-panel p+p {
            margin-top: 10px;
        }
        .team-scroll-wrapper {
            position: relative;
            margin: 0 -32px;
            padding: 0 32px;
        }
        .team-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 20px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
        }
        .team-scroll::-webkit-scrollbar {
            height: 5px;
        }
        .team-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .team-scroll::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
        }
        .team-card {
            min-width: 300px;
            max-width: 300px;
            flex-shrink: 0;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .team-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }
        .team-card .team-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            border-radius: 0;
        }
        .team-card .team-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .team-card:hover .team-image img {
            transform: scale(1.04);
        }
        .team-card .team-image .team-rank {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(6px);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-green);
            font-family: var(--font-num);
        }
        .team-card .team-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .team-card .team-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }
        .team-card .team-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .team-card .team-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }
        .team-card .team-stats {
            display: flex;
            gap: 16px;
            padding-top: 12px;
            border-top: 1px solid var(--border-subtle);
        }
        .team-card .team-stats .stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .team-card .team-stats .stat .value {
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--accent-amber);
            line-height: 1.2;
        }
        .team-card .team-stats .stat .label {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }
        .team-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-link);
            font-weight: 500;
            margin-top: 2px;
            transition: all var(--transition-fast);
        }
        .team-card .card-link:hover {
            color: #fff;
            gap: 10px;
        }
        .load-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 8px;
            padding-top: 8px;
        }
        .load-more-wrap .btn {
            min-width: 200px;
        }
        .data-strip {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 28px 32px;
            position: relative;
            overflow: hidden;
        }
        .data-strip::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(108, 59, 244, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .data-strip .data-item {
            flex: 1;
            min-width: 150px;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 8px 12px;
        }
        .data-strip .data-item .data-value {
            font-family: var(--font-num);
            font-weight: 900;
            font-size: 36px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .data-strip .data-item .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
            font-weight: 500;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 16px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            color: var(--text-body);
            transition: all var(--transition-fast);
        }
        .tag-cloud .tag:hover {
            border-color: rgba(182, 240, 92, 0.4);
            color: var(--accent-green);
            background: rgba(182, 240, 92, 0.06);
            transform: translateY(-2px);
        }
        .tag-cloud .tag i {
            font-size: 10px;
            color: var(--accent-green);
        }
        .term-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 16px;
        }
        .term-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: all var(--transition-base);
        }
        .term-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .term-card .term-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(108, 59, 244, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-link);
            margin-bottom: 12px;
        }
        .term-card .term-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .term-card .term-def {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-item .faq-icon {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: #fff;
            font-family: var(--font-num);
            font-weight: 700;
        }
        .faq-item .faq-q-text {
            flex: 1;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -0.2px;
        }
        .faq-item .faq-toggle {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 12px;
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            color: var(--accent-green);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px 58px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(108, 59, 244, 0.2) 0%, rgba(232, 57, 106, 0.15) 60%, rgba(13, 11, 20, 0.9) 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-large);
            padding: 40px 44px;
            display: flex;
            gap: 36px;
            align-items: center;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(108, 59, 244, 0.3) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-box .cta-text {
            flex: 1;
            min-width: 260px;
            position: relative;
            z-index: 1;
        }
        .cta-box .cta-text h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.4px;
        }
        .cta-box .cta-text p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .cta-box .cta-form {
            flex: 1;
            min-width: 280px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-box .cta-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cta-box .cta-form input,
        .cta-box .cta-form select {
            flex: 1;
            min-width: 140px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .cta-box .cta-form input::placeholder {
            color: var(--text-muted);
        }
        .cta-box .cta-form input:focus,
        .cta-box .cta-form select:focus {
            border-color: var(--primary-purple);
            background: rgba(255, 255, 255, 0.06);
            outline: 2px solid rgba(108, 59, 244, 0.25);
            outline-offset: 1px;
        }
        .cta-box .cta-form .btn {
            width: 100%;
        }
        .cta-box .form-hint {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 20px;
        }
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }
        .topic-card .topic-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 0;
        }
        .topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .topic-card:hover .topic-image img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: 18px 22px 22px;
        }
        .topic-card .topic-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            margin-bottom: 8px;
        }
        .topic-card .topic-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: -0.2px;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 28px;
            margin-top: 40px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-num);
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .logo .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary-purple), var(--primary-pink));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }
        .site-footer .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 280px;
        }
        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            padding: 5px 0;
            transition: all var(--transition-fast);
        }
        .site-footer .footer-col a:hover {
            color: var(--accent-green);
            transform: translateX(2px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-green);
        }
        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 58px;
            }
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 48px 0;
            }
            .page-header {
                padding: 36px 0 28px;
            }
            .page-header h1 {
                font-size: 30px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-head .title-group h2 {
                font-size: 22px;
            }
            .team-scroll-wrapper {
                margin: 0 -20px;
                padding: 0 20px;
            }
            .team-card {
                min-width: 260px;
                max-width: 260px;
            }
            .data-strip {
                padding: 20px 16px;
                gap: 12px;
            }
            .data-strip .data-item .data-value {
                font-size: 26px;
            }
            .cta-box {
                padding: 28px 24px;
                flex-direction: column;
                gap: 24px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .term-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-gap: 48px;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .page-header .header-desc {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 13px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .intro-panel {
                padding: 20px 18px;
            }
            .intro-panel p {
                font-size: 14px;
            }
            .team-card {
                min-width: 230px;
                max-width: 230px;
            }
            .data-strip {
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 8px;
                padding: 16px 12px;
                scroll-snap-type: x mandatory;
            }
            .data-strip .data-item {
                min-width: 110px;
                flex-shrink: 0;
                scroll-snap-align: start;
            }
            .data-strip .data-item .data-value {
                font-size: 24px;
            }
            .data-strip .data-item .data-label {
                font-size: 11px;
            }
            .tag-cloud .tag {
                padding: 6px 12px;
                font-size: 12px;
            }
            .term-grid {
                grid-template-columns: 1fr;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                gap: 10px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px 48px;
                font-size: 13px;
            }
            .faq-item .faq-q-text {
                font-size: 14px;
            }
            .cta-box {
                padding: 22px 16px;
            }
            .cta-box .cta-text h3 {
                font-size: 19px;
            }
            .cta-box .cta-form .form-row {
                flex-direction: column;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 18px;
            }
            .team-card {
                min-width: 200px;
                max-width: 200px;
            }
            .team-card .team-name {
                font-size: 16px;
            }
            .team-card .team-desc {
                font-size: 12px;
            }
            .team-card .team-stats .stat .value {
                font-size: 15px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .drawer {
                width: 240px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }