/* roulang page: index */
:root {
      --primary: #1C1B27;
      --primary-soft: #242235;
      --secondary: #00C6B2;
      --secondary-soft: #8C7BFF;
      --accent: #FF9F45;
      --bg: #F7F6FA;
      --bg-soft: #EEEDF4;
      --card: #FFFFFF;
      --text-main: #14121F;
      --text-secondary: #4D4A5C;
      --text-muted: #8B889B;
      --border: #E3E1EC;
      --radius-card: 14px;
      --radius-btn: 9px;
      --radius-input: 6px;
      --shadow-sm: 0 2px 14px rgba(24,22,38,0.07);
      --shadow-md: 0 8px 28px rgba(24,22,38,0.12);
      --transition: all 0.2s ease;
      --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      --spacing-section: 72px;
      --spacing-section-mobile: 48px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--secondary); transition: var(--transition); text-decoration: none; }
    a:hover { color: var(--accent); }
    h1, h2, h3, h4 { line-height: 1.35; font-weight: 700; color: var(--text-main); }
    h1 { font-size: 36px; letter-spacing: -0.5px; }
    h2 { font-size: 28px; margin-bottom: 16px; }
    h3 { font-size: 20px; margin-bottom: 10px; }
    .grid-container { max-width: 1200px; }
    .section { padding: var(--spacing-section) 0; position: relative; }
    .section-alt { background: var(--bg-soft); }
    .section-dark { background: var(--primary); color: #fff; }
    .section-dark h2, .section-dark h3 { color: #fff; }
    .section-head { margin-bottom: 36px; }
    .section-head .eyebrow { display: inline-block; background: rgba(0,198,178,0.14); color: #008F7E; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 12px; letter-spacing: 0.5px; }
    .section-head .section-title { font-size: clamp(24px, 3vw, 30px); margin-bottom: 10px; }
    .section-head .section-desc { color: var(--text-secondary); max-width: 700px; font-size: 15px; }
    .btn { display: inline-block; padding: 12px 24px; border-radius: var(--radius-btn); font-weight: 600; font-size: 15px; cursor: pointer; text-align: center; border: 2px solid transparent; transition: var(--transition); line-height: 1.4; min-width: 130px; }
    .btn-primary { background: var(--accent); color: #14121F; border-color: var(--accent); }
    .btn-primary:hover { background: #f28b2e; border-color: #f28b2e; color: #14121F; transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary-soft); }
    .btn-secondary:hover { background: var(--primary-soft); color: #fff; border-color: var(--primary-soft); transform: translateY(-2px); }
    .btn-light { background: #fff; color: var(--primary); border-color: #fff; }
    .btn-light:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
    .btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
    .btn-outline-light:hover { background: rgba(255,255,255,0.15); color: #fff; border-color: #fff; }
    .tag { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: 0.3px; background: rgba(0,198,178,0.12); color: #008F7E; }
    .tag-accent { background: rgba(255,159,69,0.18); color: #B15E00; }
    .tag-purple { background: rgba(140,123,255,0.14); color: #5B4FD4; }
    .badge { background: var(--accent); color: #14121F; padding: 5px 12px; border-radius: 8px; font-weight: 700; font-size: 13px; display: inline-block; }
    .card { background: var(--card); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
    .card-img { height: 180px; object-fit: cover; background: var(--bg-soft); }
    .card-body { padding: 20px 22px; }
    .card-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); }
    .card-text { font-size: 14px; color: var(--text-secondary); }
    .card-meta { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; color: var(--text-muted); }
    .icon-circle { width: 44px; height: 44px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; background: rgba(0,198,178,0.12); color: #008F7E; font-size: 20px; transition: var(--transition); }
    .card:hover .icon-circle { background: var(--secondary); color: #fff; }
    .stat-number { font-size: 34px; font-weight: 700; color: var(--accent); line-height: 1.1; }
    .stat-label { font-size: 14px; color: var(--text-muted); }
    .divider { height: 1px; background: var(--border); margin: 20px 0; }
    .input-group { display: flex; flex-direction: column; gap: 12px; }
    .input-field { padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-input); font-size: 15px; background: #fff; color: var(--text-main); transition: var(--transition); outline: none; width: 100%; }
    .input-field:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(0,198,178,0.15); }
    .input-field::placeholder { color: var(--text-muted); font-size: 14px; }
    .form-row { display: flex; gap: 12px; flex-wrap: wrap; }
    .form-row .input-field { flex: 1 1 240px; }
    .form-row .btn { flex: 0 0 auto; }
    @media (max-width: 639px) {
      .form-row { flex-direction: column; }
      .form-row .btn { width: 100%; }
    }
    /* Header */
    .site-header { position: sticky; top: 0; z-index: 1000; }
    .brand-bar { background: var(--primary); color: #fff; }
    .brand-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
    .brand-logo { display: flex; align-items: center; gap: 12px; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 0.3px; }
    .brand-logo i { color: var(--secondary); font-size: 24px; }
    .brand-actions { display: flex; align-items: center; gap: 18px; }
    .brand-actions a { color: #fff; font-size: 14px; font-weight: 500; }
    .brand-actions a:hover { color: var(--secondary); }
    .menu-toggle { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; padding: 8px; }
    .channel-bar { background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 1px 6px rgba(0,0,0,0.04); }
    .channel-inner { display: flex; align-items: center; gap: 0; height: 52px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .channel-link { padding: 0 20px; height: 100%; display: inline-flex; align-items: center; color: var(--text-secondary); font-size: 15px; font-weight: 600; white-space: nowrap; border-bottom: 3px solid transparent; transition: var(--transition); }
    .channel-link:hover { color: var(--primary); background: var(--bg); }
    .channel-link.active { color: var(--secondary); border-bottom-color: var(--secondary); }
    @media (max-width: 767px) {
      .menu-toggle { display: inline-block; }
      .brand-actions { display: none; }
      .channel-bar { display: none; }
      .channel-bar.open { display: block; }
      .channel-inner { flex-direction: column; height: auto; padding: 10px 0; align-items: stretch; }
      .channel-link { height: 44px; border-bottom: none; justify-content: center; padding: 0; }
      .channel-link.active { background: rgba(0,198,178,0.08); }
    }
    /* Hero */
    .hero { padding: 80px 0; background: var(--primary); background-image: linear-gradient(rgba(28,27,39,0.82), rgba(28,27,39,0.92)), url('/assets/images/2f3eb01c9830174c.webp'); background-size: cover; background-position: center; color: #fff; position: relative; overflow: hidden; }
    .hero::after { content: ''; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(0,198,178,0.08); top: -60px; right: 40px; pointer-events: none; }
    .hero .hero-badge { display: inline-block; background: var(--accent); color: #14121F; padding: 6px 14px; border-radius: 999px; font-weight: 700; font-size: 13px; letter-spacing: 0.3px; margin-bottom: 18px; }
    .hero h1 { font-size: clamp(32px, 5vw, 44px); color: #fff; margin-bottom: 18px; }
    .hero .hero-sub { font-size: 18px; color: rgba(255,255,255,0.85); max-width: 720px; margin-bottom: 28px; }
    .hero .hero-desc { font-size: 15px; line-height: 1.8; color: rgba(255,255,255,0.72); max-width: 700px; margin-bottom: 32px; }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
    .hero-panel { background: rgba(255,255,255,0.08); backdrop-filter: blur(6px); border-radius: 16px; padding: 24px; border: 1px solid rgba(255,255,255,0.12); }
    .hero-panel .panel-title { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 14px; }
    .hero-panel .panel-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.1); color: #fff; font-size: 14px; }
    .hero-panel .panel-row:last-child { border-bottom: none; }
    @media (max-width: 767px) {
      .hero { padding: 56px 0; }
      .hero-panel { margin-top: 28px; }
    }
    /* Channel cards */
    .channel-cards .card { border: 1px solid var(--border); min-height: 200px; }
    .channel-cards .card-body { padding: 22px; }
    /* Data strip */
    .data-strip { background: var(--primary); color: #fff; padding: 56px 0; }
    .data-strip .stat-number { color: var(--accent); }
    .data-strip .stat-label { color: rgba(255,255,255,0.6); }
    /* Service matrix */
    .service-matrix .service-item { display: flex; gap: 14px; align-items: flex-start; padding: 18px; background: var(--card); border-radius: var(--radius-card); border: 1px solid var(--border); transition: var(--transition); }
    .service-matrix .service-item:hover { border-color: var(--secondary); box-shadow: var(--shadow-sm); }
    .service-matrix .service-item h3 { font-size: 16px; margin-bottom: 4px; }
    .service-matrix .service-item p { font-size: 13px; color: var(--text-secondary); }
    /* Ranking list */
    .ranking-list { list-style: none; padding: 0; }
    .ranking-list li { display: flex; align-items: center; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--border); }
    .ranking-list li:last-child { border-bottom: none; }
    .rank-num { font-size: 20px; font-weight: 700; color: var(--accent); width: 32px; text-align: center; }
    /* FAQ */
    .accordion-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 10px; background: var(--card); overflow: hidden; }
    .accordion-header { background: none; border: 0; padding: 16px 20px; width: 100%; text-align: left; font-size: 16px; font-weight: 600; color: var(--text-main); display: flex; justify-content: space-between; align-items: center; cursor: pointer; transition: var(--transition); }
    .accordion-header:hover { background: #faf9fd; }
    .accordion-header i { color: var(--secondary); transition: transform 0.25s ease; }
    .accordion-header.active i { transform: rotate(180deg); }
    .accordion-panel { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
    .accordion-panel.show { max-height: 300px; }
    .accordion-panel .panel-content { padding: 0 20px 18px; color: var(--text-secondary); font-size: 14px; }
    /* Guarantee strip */
    .guarantee-strip { background: var(--bg-soft); padding: 36px 0; }
    .guarantee-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-secondary); }
    .guarantee-item i { color: var(--secondary); font-size: 18px; }
    /* CTA */
    .cta-section { background: var(--primary); color: #fff; }
    .cta-section h2 { color: #fff; }
    .cta-section .input-field { border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #fff; }
    .cta-section .input-field::placeholder { color: rgba(255,255,255,0.6); }
    .cta-section .input-field:focus { border-color: var(--secondary); }
    /* Partners */
    .partner-list { display: flex; gap: 20px; flex-wrap: wrap; align-items: center; }
    .partner-chip { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 20px; font-weight: 600; color: var(--text-secondary); font-size: 14px; transition: var(--transition); }
    .partner-chip:hover { border-color: var(--secondary); color: var(--primary); }
    /* Footer */
    .site-footer { background: var(--primary); color: #fff; padding: 64px 0 36px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 18px; }
    .site-footer p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.7; }
    .footer-links { list-style: none; padding: 0; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a { color: rgba(255,255,255,0.7); font-size: 14px; }
    .footer-links a:hover { color: var(--secondary); }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 44px; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
    .footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.55); }
    .footer-bottom a { color: rgba(255,255,255,0.7); font-size: 13px; }
    .footer-bottom a:hover { color: var(--secondary); }
    .footer-bottom .tech-links { display: flex; gap: 16px; }
    @media (max-width: 639px) {
      .section { padding: var(--spacing-section-mobile) 0; }
      h1 { font-size: 30px; }
      h2 { font-size: 24px; }
      .hero h1 { font-size: 30px; }
      .footer-bottom { flex-direction: column; align-items: flex-start; }
    }

/* roulang page: category1 */
:root {
            --primary: #1C1B27;
            --primary-soft: #242235;
            --secondary: #00C6B2;
            --secondary-soft: #8C7BFF;
            --accent: #FF9F45;
            --bg: #F7F6FA;
            --bg-soft: #EEEDF4;
            --card: #FFFFFF;
            --text-main: #14121F;
            --text-secondary: #4D4A5C;
            --text-muted: #8B889B;
            --border: #E3E1EC;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 6px;
            --shadow-sm: 0 2px 14px rgba(24,22,38,0.07);
            --shadow-md: 0 8px 28px rgba(24,22,38,0.12);
            --transition: all 0.2s ease;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --spacing-section: 72px;
            --spacing-section-mobile: 48px;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--secondary); transition: var(--transition); text-decoration: none; }
        a:hover { color: var(--accent); }
        .grid-container { max-width: 1200px; padding: 0 16px; }
        .section { padding: var(--spacing-section) 0; position: relative; }
        .section-alt { background: var(--bg-soft); }
        .section-dark { background: var(--primary); color: #fff; }
        .section-dark h2, .section-dark h3, .section-dark p { color: #fff; }
        .section-head { margin-bottom: 36px; }
        .section-head .eyebrow { display: inline-block; background: rgba(0,198,178,0.14); color: #008F7E; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 12px; letter-spacing: 0.5px; }
        .section-head .section-title { font-size: clamp(24px, 3vw, 30px); margin-bottom: 10px; color: var(--text-main); font-weight: 700; }
        .section-head .section-desc { color: var(--text-secondary); max-width: 700px; font-size: 15px; }
        .section-dark .section-head .section-title { color: #fff; }
        .section-dark .section-head .section-desc { color: rgba(255,255,255,0.7); }

        .btn { display: inline-block; padding: 12px 24px; border-radius: var(--radius-btn); font-weight: 600; font-size: 15px; cursor: pointer; text-align: center; border: 2px solid transparent; transition: var(--transition); line-height: 1.4; min-width: 130px; }
        .btn-primary { background: var(--accent); color: #14121F; border-color: var(--accent); }
        .btn-primary:hover { background: #f28b2e; border-color: #f28b2e; color: #14121F; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary-soft); }
        .btn-secondary:hover { background: var(--primary-soft); color: #fff; border-color: var(--primary-soft); transform: translateY(-2px); }
        .btn-light { background: #fff; color: var(--primary); border-color: #fff; }
        .btn-light:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
        .btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
        .btn-outline-light:hover { background: rgba(255,255,255,0.15); color: #fff; border-color: #fff; }

        .tag { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: 0.3px; background: rgba(0,198,178,0.12); color: #008F7E; }
        .tag-accent { background: rgba(255,159,69,0.18); color: #B15E00; }
        .tag-purple { background: rgba(140,123,255,0.14); color: #5B4FD4; }

        .card { background: var(--card); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
        .card-img { height: 180px; object-fit: cover; background: var(--bg-soft); width: 100%; }
        .card-body { padding: 20px 22px; }
        .card-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); line-height: 1.5; }
        .card-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
        .card-meta { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; color: var(--text-muted); }

        .divider { height: 1px; background: var(--border); margin: 20px 0; }

        .input-group { display: flex; flex-direction: column; gap: 12px; }
        .input-field { padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-input); font-size: 15px; background: #fff; color: var(--text-main); transition: var(--transition); outline: none; width: 100%; }
        .input-field:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(0,198,178,0.15); }
        .input-field::placeholder { color: var(--text-muted); font-size: 14px; }
        .form-row { display: flex; gap: 12px; flex-wrap: wrap; }
        .form-row .input-field { flex: 1 1 240px; }
        .form-row .btn { flex: 0 0 auto; }
        @media (max-width: 640px) {
            .form-row { flex-direction: column; }
            .form-row .btn { width: 100%; }
        }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 1000; }
        .brand-bar { background: var(--primary); color: #fff; }
        .brand-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .brand-logo { display: flex; align-items: center; gap: 12px; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 0.3px; }
        .brand-logo i { color: var(--secondary); font-size: 24px; }
        .brand-actions { display: flex; align-items: center; gap: 18px; }
        .brand-actions a { color: #fff; font-size: 14px; font-weight: 500; }
        .brand-actions a:hover { color: var(--secondary); }
        .menu-toggle { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; padding: 8px; }
        .channel-bar { background: rgba(28,27,39,0.96); border-top: 1px solid rgba(255,255,255,0.1); }
        .channel-inner { display: flex; align-items: center; gap: 8px; overflow-x: auto; padding: 12px 0; scrollbar-width: thin; }
        .channel-link { color: rgba(255,255,255,0.7); font-size: 15px; font-weight: 500; padding: 8px 18px; border-radius: 999px; white-space: nowrap; transition: var(--transition); }
        .channel-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
        .channel-link.active { background: var(--secondary); color: #14121F; font-weight: 600; }
        @media (max-width: 820px) {
            .brand-actions { display: none; }
            .menu-toggle { display: inline-block; }
            .channel-bar { display: none; }
            .channel-bar.mobile-open { display: block; position: absolute; top: 72px; left: 0; width: 100%; background: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
            .channel-inner { flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px; }
            .channel-link { display: block; text-align: left; padding: 10px 12px; border-radius: 8px; }
        }

        /* Page header */
        .page-header {
            background: var(--primary);
            background-image: linear-gradient(rgba(28,27,39,0.85), rgba(28,27,39,0.92)), url('/assets/images/2f3eb01c9830174c.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 48px 0 56px;
            position: relative;
        }
        .page-header .breadcrumb { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; }
        .page-header .breadcrumb a { color: var(--secondary); }
        .page-header .breadcrumb span { color: rgba(255,255,255,0.6); }
        .page-title { font-size: clamp(32px, 4vw, 40px); font-weight: 700; margin-bottom: 16px; color: #fff; letter-spacing: 0.5px; }
        .page-desc { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 800px; }

        /* Data strip */
        .data-strip { background: var(--primary-soft); }
        .data-strip .grid-x { align-items: center; }
        .data-item { text-align: center; padding: 20px 10px; }
        .data-item .num { font-size: 32px; font-weight: 700; color: var(--secondary); }
        .data-item .label { font-size: 14px; color: rgba(255,255,255,0.6); margin-top: 6px; }
        @media (max-width: 640px) {
            .data-item .num { font-size: 26px; }
        }

        /* Event list */
        .event-card { display: flex; flex-direction: column; height: 100%; }
        .event-card .card-img { height: 160px; }
        .event-card .card-body { flex: 1; display: flex; flex-direction: column; }
        .event-card .card-title { flex: 0 0 auto; }
        .event-card .card-text { flex: 1 0 auto; }
        .event-card .card-meta { margin-top: auto; }
        .event-time { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-muted); }

        /* Hot list */
        .hot-item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border); align-items: flex-start; }
        .hot-item:last-child { border-bottom: 0; }
        .hot-rank { font-size: 24px; font-weight: 700; color: var(--accent); min-width: 40px; text-align: center; }
        .hot-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
        .hot-info p { color: var(--text-secondary); font-size: 14px; margin: 0; }

        /* Editor picks */
        .pick-card { background: var(--card); border-radius: var(--radius-card); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow-sm); }
        .pick-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
        .pick-card img { height: 140px; object-fit: cover; width: 100%; }
        .pick-card .pick-body { padding: 16px 18px; }
        .pick-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
        .pick-card p { font-size: 13px; color: var(--text-secondary); margin: 0; }

        /* Tag cloud */
        .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
        .tag-cloud .tag { font-size: 13px; padding: 6px 14px; cursor: pointer; transition: var(--transition); }
        .tag-cloud .tag:hover { background: rgba(0,198,178,0.25); color: #008F7E; }

        /* FAQ */
        .faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
        .faq-question { padding: 16px 20px; font-weight: 600; font-size: 16px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; background: #fff; border: 0; width: 100%; text-align: left; color: var(--text-main); }
        .faq-question:hover { background: #f9f9fc; }
        .faq-question i { transition: var(--transition); color: var(--secondary); }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
        .faq-item.open .faq-answer { max-height: 300px; }
        .faq-answer p { padding: 0 20px 18px; color: var(--text-secondary); font-size: 15px; }

        /* CTA */
        .cta-box { background: var(--primary); border-radius: 16px; padding: 40px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; color: #fff; }
        .cta-box h3 { color: #fff; margin-bottom: 8px; }
        .cta-box p { color: rgba(255,255,255,0.7); margin: 0; max-width: 500px; }
        @media (max-width: 640px) {
            .cta-box { padding: 28px 20px; flex-direction: column; text-align: center; }
        }

        /* Footer */
        .site-footer { background: var(--primary); color: rgba(255,255,255,0.7); padding: 56px 0 0; margin-top: 0; }
        .site-footer h3 { color: #fff; font-size: 18px; margin-bottom: 16px; }
        .site-footer p { margin-bottom: 12px; }
        .footer-links { list-style: none; margin: 0; padding: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255,255,255,0.7); }
        .footer-links a:hover { color: var(--secondary); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px; padding: 20px 0; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; font-size: 13px; }
        .footer-bottom p { margin: 0; }
        .tech-links { display: flex; gap: 16px; }
        .tech-links a { color: rgba(255,255,255,0.7); }
        .tech-links a:hover { color: var(--secondary); }
        @media (max-width: 768px) {
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category2 */
:root {
            --primary: #1C1B27;
            --primary-soft: #242235;
            --secondary: #00C6B2;
            --secondary-soft: #8C7BFF;
            --accent: #FF9F45;
            --bg: #F7F6FA;
            --bg-soft: #EEEDF4;
            --card: #FFFFFF;
            --text-main: #14121F;
            --text-secondary: #4D4A5C;
            --text-muted: #8B889B;
            --border: #E3E1EC;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 6px;
            --shadow-sm: 0 2px 14px rgba(24,22,38,0.07);
            --shadow-md: 0 8px 28px rgba(24,22,38,0.12);
            --transition: all 0.2s ease;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --spacing-section: 72px;
            --spacing-section-mobile: 48px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--secondary);
            transition: var(--transition);
            text-decoration: none;
        }
        a:hover {
            color: var(--accent);
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }
        .section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-soft);
        }
        .section-dark {
            background: var(--primary);
            color: #fff;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head .eyebrow {
            display: inline-block;
            background: rgba(0,198,178,0.14);
            color: #008F7E;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-head .section-title {
            font-size: clamp(24px, 3vw, 30px);
            margin-bottom: 10px;
            font-weight: 700;
            color: var(--text-main);
        }
        .section-head .section-desc {
            color: var(--text-secondary);
            max-width: 700px;
            font-size: 15px;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            text-align: center;
            border: 2px solid transparent;
            transition: var(--transition);
            line-height: 1.4;
            min-width: 130px;
        }
        .btn-primary {
            background: var(--accent);
            color: #14121F;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: #f28b2e;
            border-color: #f28b2e;
            color: #14121F;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary-soft);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            color: #fff;
            border-color: var(--primary-soft);
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn-light:hover {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255,255,255,0.6);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.15);
            color: #fff;
            border-color: #fff;
        }
        .tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(0,198,178,0.12);
            color: #008F7E;
        }
        .tag-accent {
            background: rgba(255,159,69,0.18);
            color: #B15E00;
        }
        .tag-purple {
            background: rgba(140,123,255,0.14);
            color: #5B4FD4;
        }
        .badge {
            background: var(--accent);
            color: #14121F;
            padding: 5px 12px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 13px;
            display: inline-block;
        }
        .card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .card-img {
            height: 180px;
            object-fit: cover;
            background: var(--bg-soft);
            width: 100%;
        }
        .card-body {
            padding: 20px 22px;
        }
        .card-title {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .card-text {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .divider {
            height: 1px;
            background: var(--border);
            margin: 20px 0;
        }
        .input-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .input-field {
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            font-size: 15px;
            background: #fff;
            color: var(--text-main);
            transition: var(--transition);
            outline: none;
            width: 100%;
        }
        .input-field:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(0,198,178,0.15);
        }
        .input-field::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .brand-bar {
            background: var(--primary);
            color: #fff;
        }
        .brand-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.3px;
        }
        .brand-logo i {
            color: var(--secondary);
            font-size: 24px;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .brand-actions a {
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }
        .brand-actions a:hover {
            color: var(--secondary);
        }
        .channel-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(24,22,38,0.04);
        }
        .channel-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .channel-inner::-webkit-scrollbar {
            display: none;
        }
        .channel-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 999px;
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .channel-link:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .channel-link.active {
            color: var(--secondary);
            background: rgba(0,198,178,0.1);
            border-color: rgba(0,198,178,0.25);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 0;
            color: #fff;
            font-size: 26px;
            cursor: pointer;
            padding: 8px;
        }

        /* Page Header (Inner) */
        .page-header {
            background: var(--primary);
            padding: 48px 0 52px;
            color: #fff;
            position: relative;
            overflow: hidden;
            background-image: linear-gradient(rgba(28,27,39,0.88), rgba(28,27,39,0.95)), url('/assets/images/08bda6320794be31.webp');
            background-size: cover;
            background-position: center;
        }
        .page-header::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(0,198,178,0.07);
            top: -80px;
            right: 60px;
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255,255,255,0.7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255,255,255,0.8);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .sep {
            color: rgba(255,255,255,0.5);
        }
        .page-header h1 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .page-header .page-desc {
            font-size: 16px;
            color: rgba(255,255,255,0.8);
            max-width: 720px;
            line-height: 1.8;
        }
        .page-header .header-stats {
            display: flex;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .header-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .header-stats .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--accent);
        }
        .header-stats .stat-label {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
        }

        /* Team List */
        .team-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .team-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            flex-wrap: wrap;
        }
        .team-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .team-item-img {
            width: 96px;
            height: 96px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .team-item-content {
            flex: 1;
            min-width: 220px;
        }
        .team-item-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .team-item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.7;
        }
        .team-item-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .team-item-meta {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;
            flex-shrink: 0;
        }
        .team-rank {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(255,159,69,0.15);
            padding: 4px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }
        .team-date {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Player Cards */
        .player-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .player-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary-soft);
        }
        .player-img {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }
        .player-body {
            padding: 18px 20px;
        }
        .player-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .player-role {
            font-size: 13px;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .player-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Data Strip */
        .data-strip {
            background: var(--primary-soft);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .data-strip .data-item {
            text-align: center;
        }
        .data-strip .data-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: 4px;
        }
        .data-strip .data-label {
            font-size: 13px;
            color: rgba(255,255,255,0.7);
        }

        /* Tag Cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag {
            font-size: 13px;
            padding: 8px 16px;
            cursor: default;
            transition: var(--transition);
        }
        .tag-cloud .tag:hover {
            background: rgba(0,198,178,0.25);
            color: #006b5f;
        }

        /* Editor Picks */
        .editor-pick {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .editor-pick:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .editor-pick-img {
            height: 160px;
            object-fit: cover;
            width: 100%;
        }
        .editor-pick-body {
            padding: 18px 20px;
        }
        .editor-pick-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .editor-pick-text {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            padding: 56px 0 24px;
        }
        .site-footer h3 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.75);
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.75);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 6px;
        }
        .tech-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .tech-links a {
            color: rgba(255,255,255,0.6);
            font-size: 13px;
        }
        .tech-links a:hover {
            color: var(--secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 48px 0;
            }
            .team-item-img {
                width: 80px;
                height: 80px;
            }
        }
        @media (max-width: 768px) {
            .brand-actions {
                display: none;
            }
            .menu-toggle {
                display: inline-block;
            }
            .team-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .team-item-img {
                width: 100%;
                height: 160px;
                border-radius: 8px;
            }
            .team-item-meta {
                align-items: flex-start;
            }
            .channel-inner {
                gap: 4px;
                padding: 0 4px;
            }
            .channel-link {
                padding: 6px 12px;
                font-size: 13px;
            }
            .page-header {
                padding: 36px 0 40px;
            }
            .page-header .header-stats {
                gap: 16px;
            }
            .header-stats .stat-num {
                font-size: 22px;
            }
            .data-strip {
                padding: 24px 18px;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-strip .data-num {
                font-size: 26px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 36px 0;
            }
            .grid-container {
                padding-left: 12px;
                padding-right: 12px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .page-header .page-desc {
                font-size: 14px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
                min-width: 110px;
            }
            .team-item {
                padding: 14px;
            }
            .team-item-title {
                font-size: 15px;
            }
            .footer-bottom p {
                font-size: 12px;
            }
            .tech-links {
                gap: 12px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1C1B27;
            --primary-soft: #242235;
            --secondary: #00C6B2;
            --secondary-soft: #8C7BFF;
            --accent: #FF9F45;
            --bg: #F7F6FA;
            --bg-soft: #EEEDF4;
            --card: #FFFFFF;
            --text-main: #14121F;
            --text-secondary: #4D4A5C;
            --text-muted: #8B889B;
            --border: #E3E1EC;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 6px;
            --shadow-sm: 0 2px 14px rgba(24,22,38,0.07);
            --shadow-md: 0 8px 28px rgba(24,22,38,0.12);
            --transition: all 0.2s ease;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --spacing-section: 72px;
            --spacing-section-mobile: 48px;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--secondary); transition: var(--transition); text-decoration: none; }
        a:hover { color: var(--accent); }
        a:focus, button:focus, input:focus { outline: 2px solid rgba(0,198,178,0.5); outline-offset: 2px; }
        .grid-container { max-width: 1200px; padding: 0 20px; }
        .section { padding: var(--spacing-section) 0; position: relative; }
        .section-alt { background: var(--bg-soft); }
        .section-dark { background: var(--primary); color: #fff; }
        .section-dark h2, .section-dark h3 { color: #fff; }
        .section-head { margin-bottom: 36px; }
        .section-head .eyebrow { display: inline-block; background: rgba(0,198,178,0.14); color: #008F7E; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 12px; letter-spacing: 0.5px; }
        .section-head .section-title { font-size: clamp(24px, 3vw, 30px); margin-bottom: 10px; color: var(--text-main); }
        .section-head .section-desc { color: var(--text-secondary); max-width: 700px; font-size: 15px; }

        /* Buttons */
        .btn { display: inline-block; padding: 12px 24px; border-radius: var(--radius-btn); font-weight: 600; font-size: 15px; cursor: pointer; text-align: center; border: 2px solid transparent; transition: var(--transition); line-height: 1.4; min-width: 130px; }
        .btn-primary { background: var(--accent); color: #14121F; border-color: var(--accent); }
        .btn-primary:hover { background: #f28b2e; border-color: #f28b2e; color: #14121F; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary-soft); }
        .btn-secondary:hover { background: var(--primary-soft); color: #fff; border-color: var(--primary-soft); transform: translateY(-2px); }
        .btn-light { background: #fff; color: var(--primary); border-color: #fff; }
        .btn-light:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
        .btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
        .btn-outline-light:hover { background: rgba(255,255,255,0.15); color: #fff; border-color: #fff; }

        /* Tags & Badges */
        .tag { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: 0.3px; background: rgba(0,198,178,0.12); color: #008F7E; }
        .tag-accent { background: rgba(255,159,69,0.18); color: #B15E00; }
        .tag-purple { background: rgba(140,123,255,0.14); color: #5B4FD4; }
        .badge { background: var(--accent); color: #14121F; padding: 5px 12px; border-radius: 8px; font-weight: 700; font-size: 13px; display: inline-block; }

        /* Cards */
        .card { background: var(--card); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
        .card-img { height: 180px; object-fit: cover; background: var(--bg-soft); }
        .card-body { padding: 20px 22px; }
        .card-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); }
        .card-text { font-size: 14px; color: var(--text-secondary); }
        .card-meta { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; color: var(--text-muted); }
        .card:hover .icon-circle { background: var(--secondary); color: #fff; }

        /* Forms */
        .input-group { display: flex; flex-direction: column; gap: 12px; }
        .input-field { padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-input); font-size: 15px; background: #fff; color: var(--text-main); transition: var(--transition); outline: none; width: 100%; }
        .input-field:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(0,198,178,0.15); }
        .input-field::placeholder { color: var(--text-muted); font-size: 14px; }
        .form-row { display: flex; flex-direction: column; gap: 12px; }
        .form-row .input-field { flex: 1 1 auto; }
        .form-row .btn { width: 100%; }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 1000; }
        .brand-bar { background: var(--primary); color: #fff; }
        .brand-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .brand-logo { display: flex; align-items: center; gap: 12px; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 0.3px; }
        .brand-logo i { color: var(--secondary); font-size: 24px; }
        .brand-actions { display: flex; align-items: center; gap: 18px; }
        .brand-actions a { color: #fff; font-size: 14px; font-weight: 500; }
        .brand-actions a:hover { color: var(--secondary); }
        .menu-toggle { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; padding: 8px; }

        .channel-bar { background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
        .channel-inner { display: flex; align-items: center; gap: 28px; min-height: 52px; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
        .channel-link { display: inline-flex; align-items: center; font-size: 15px; font-weight: 500; color: var(--text-secondary); padding: 14px 0; position: relative; transition: var(--transition); }
        .channel-link::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--secondary); border-radius: 3px 3px 0 0; transform: scaleX(0); transition: var(--transition); }
        .channel-link:hover { color: var(--primary); }
        .channel-link.active { color: var(--secondary); font-weight: 700; }
        .channel-link.active::after { transform: scaleX(1); }

        /* Page Header (内页页头) */
        .page-header { background: var(--primary-soft); color: #fff; padding: 40px 0 36px; position: relative; overflow: hidden; }
        .page-header::after { content: ''; position: absolute; width: 200px; height: 200px; border-radius: 50%; background: rgba(0,198,178,0.08); top: -40px; right: 30px; pointer-events: none; }
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.7); margin-bottom: 12px; flex-wrap: wrap; }
        .breadcrumb a { color: rgba(255,255,255,0.8); font-size: 13px; }
        .breadcrumb a:hover { color: var(--secondary); }
        .breadcrumb .sep { color: rgba(255,255,255,0.45); }
        .breadcrumb .current { color: var(--secondary); font-weight: 600; }
        .page-header h1 { font-size: clamp(28px, 3.5vw, 38px); font-weight: 700; margin-bottom: 10px; color: #fff; line-height: 1.3; }
        .page-header .header-desc { font-size: 16px; color: rgba(255,255,255,0.85); max-width: 720px; line-height: 1.7; }

        /* Guide List */
        .guide-list-card { display: flex; flex-direction: column; gap: 16px; padding: 0; background: var(--card); border-radius: var(--radius-card); border: 1px solid var(--border); box-shadow: var(--shadow-sm); overflow: hidden; transition: var(--transition); }
        .guide-list-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
        .guide-list-card .guide-img { height: 200px; width: 100%; object-fit: cover; }
        .guide-list-card .guide-content { padding: 18px 20px 20px; }
        .guide-list-card .guide-tag-row { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
        .guide-list-card .guide-title { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 8px; line-height: 1.45; }
        .guide-list-card .guide-excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
        .guide-list-card .guide-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--text-muted); flex-wrap: wrap; }
        .guide-list-card .guide-meta i { color: var(--secondary); margin-right: 4px; }

        /* Hot Topics */
        .hot-topic-item { display: flex; align-items: center; gap: 14px; padding: 14px 18px; background: var(--card); border-radius: var(--radius-card); border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); margin-bottom: 12px; }
        .hot-topic-item:hover { border-color: var(--secondary); box-shadow: var(--shadow-md); }
        .hot-topic-rank { width: 34px; height: 34px; border-radius: 50%; background: var(--primary-soft); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; flex-shrink: 0; }
        .hot-topic-rank.top1 { background: var(--accent); color: #14121F; }
        .hot-topic-rank.top2 { background: #C0C0C0; color: #14121F; }
        .hot-topic-rank.top3 { background: #CD7F32; color: #fff; }
        .hot-topic-info h4 { font-size: 15px; font-weight: 600; margin: 0 0 3px; color: var(--text-main); }
        .hot-topic-info p { font-size: 13px; color: var(--text-muted); margin: 0; }
        .hot-topic-heat { margin-left: auto; font-size: 12px; color: var(--accent); font-weight: 600; white-space: nowrap; }

        /* Data Snapshot */
        .data-snapshot-bar { background: var(--primary); color: #fff; border-radius: var(--radius-card); padding: 32px 28px; display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: center; justify-content: space-between; }
        .data-item { text-align: center; flex: 1 1 120px; }
        .data-item .data-num { font-size: 32px; font-weight: 700; color: var(--secondary); line-height: 1.2; }
        .data-item .data-label { font-size: 13px; color: rgba(255,255,255,0.75); margin-top: 6px; }

        /* Tag Cloud */
        .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
        .tag-cloud .tag { cursor: pointer; font-size: 13px; padding: 6px 14px; transition: var(--transition); }
        .tag-cloud .tag:hover { background: var(--secondary); color: #fff; transform: translateY(-2px); }

        /* Section CTA */
        .cta-bar { background: linear-gradient(135deg, var(--primary) 0%, #2A2940 100%); color: #fff; border-radius: var(--radius-card); padding: 40px 32px; display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
        .cta-bar h3 { color: #fff; font-size: 22px; margin-bottom: 8px; }
        .cta-bar p { color: rgba(255,255,255,0.8); font-size: 15px; margin: 0; max-width: 500px; }
        .cta-bar .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

        /* Footer */
        .site-footer { background: var(--primary); color: #fff; padding: 60px 0 30px; margin-top: 0; }
        .site-footer h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 18px; }
        .site-footer p { color: rgba(255,255,255,0.75); font-size: 14px; line-height: 1.7; }
        .footer-links { list-style: none; margin: 0; padding: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255,255,255,0.75); font-size: 14px; transition: var(--transition); }
        .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); margin-top: 40px; padding-top: 24px; display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; font-size: 13px; color: rgba(255,255,255,0.6); }
        .tech-links { display: flex; gap: 16px; }
        .tech-links a { color: rgba(255,255,255,0.6); font-size: 13px; }
        .tech-links a:hover { color: var(--secondary); }

        /* Responsive */
        @media (max-width: 1024px) {
            .section { padding: 52px 0; }
            .data-num { font-size: 26px; }
        }
        @media (max-width: 768px) {
            :root { --spacing-section: 48px; }
            .section { padding: 40px 0; }
            .page-header { padding: 28px 0 24px; }
            .page-header h1 { font-size: 24px; }
            .brand-inner { height: 60px; }
            .brand-actions { display: none; }
            .menu-toggle { display: inline-block; }
            .channel-inner { gap: 18px; font-size: 14px; }
            .guide-list-card .guide-img { height: 160px; }
            .data-item .data-num { font-size: 22px; }
            .cta-bar { padding: 28px 20px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .grid-container { padding: 0 14px; }
            .section { padding: 32px 0; }
            .page-header h1 { font-size: 20px; }
            .page-header .header-desc { font-size: 14px; }
            .guide-list-card .guide-img { height: 140px; }
            .guide-list-card .guide-content { padding: 14px 16px 16px; }
            .guide-list-card .guide-title { font-size: 16px; }
            .hot-topic-item { padding: 10px 12px; }
            .data-snapshot-bar { padding: 20px 16px; gap: 12px 20px; }
            .cta-bar { padding: 20px 16px; }
            .btn { min-width: 100px; padding: 10px 16px; font-size: 14px; }
        }

/* roulang page: category4 */
:root {
            --primary: #1C1B27;
            --primary-soft: #242235;
            --secondary: #00C6B2;
            --secondary-soft: #8C7BFF;
            --accent: #FF9F45;
            --bg: #F7F6FA;
            --bg-soft: #EEEDF4;
            --card: #FFFFFF;
            --text-main: #14121F;
            --text-secondary: #4D4A5C;
            --text-muted: #8B889B;
            --border: #E3E1EC;
            --radius-card: 14px;
            --radius-btn: 9px;
            --radius-input: 6px;
            --shadow-sm: 0 2px 14px rgba(24,22,38,0.07);
            --shadow-md: 0 8px 28px rgba(24,22,38,0.12);
            --transition: all 0.2s ease;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --spacing-section: 72px;
            --spacing-section-mobile: 48px;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--secondary); transition: var(--transition); text-decoration: none; }
        a:hover { color: var(--accent); }
        .grid-container { max-width: 1200px; }

        .section { padding: var(--spacing-section) 0; position: relative; }
        .section-alt { background: var(--bg-soft); }
        .section-dark { background: var(--primary); color: #fff; }
        .section-dark h2, .section-dark h3 { color: #fff; }

        .section-head { margin-bottom: 36px; }
        .section-head .eyebrow {
            display: inline-block;
            background: rgba(0,198,178,0.14);
            color: #008F7E;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-head .section-title { font-size: clamp(24px, 3vw, 30px); margin-bottom: 10px; }
        .section-head .section-desc { color: var(--text-secondary); max-width: 700px; font-size: 15px; }

        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            text-align: center;
            border: 2px solid transparent;
            transition: var(--transition);
            line-height: 1.4;
            min-width: 130px;
        }
        .btn-primary { background: var(--accent); color: #14121F; border-color: var(--accent); }
        .btn-primary:hover { background: #f28b2e; border-color: #f28b2e; color: #14121F; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary-soft); }
        .btn-secondary:hover { background: var(--primary-soft); color: #fff; border-color: var(--primary-soft); transform: translateY(-2px); }
        .btn-light { background: #fff; color: var(--primary); border-color: #fff; }
        .btn-light:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
        .btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
        .btn-outline-light:hover { background: rgba(255,255,255,0.15); color: #fff; border-color: #fff; }

        .tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(0,198,178,0.12);
            color: #008F7E;
        }
        .tag-accent { background: rgba(255,159,69,0.18); color: #B15E00; }
        .tag-purple { background: rgba(140,123,255,0.14); color: #5B4FD4; }
        .badge {
            background: var(--accent);
            color: #14121F;
            padding: 5px 12px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 13px;
            display: inline-block;
        }

        .card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
        .card-img { height: 180px; object-fit: cover; background: var(--bg-soft); }
        .card-body { padding: 20px 22px; }
        .card-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); }
        .card-text { font-size: 14px; color: var(--text-secondary); }
        .card-meta { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; color: var(--text-muted); }

        .divider { height: 1px; background: var(--border); margin: 20px 0; }
        .input-field {
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            font-size: 15px;
            background: #fff;
            color: var(--text-main);
            transition: var(--transition);
            outline: none;
            width: 100%;
        }
        .input-field:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(0,198,178,0.15); }
        .input-field::placeholder { color: var(--text-muted); font-size: 14px; }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 1000; }
        .brand-bar { background: var(--primary); color: #fff; }
        .brand-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .brand-logo { display: flex; align-items: center; gap: 12px; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 0.3px; }
        .brand-logo i { color: var(--secondary); font-size: 24px; }
        .brand-actions { display: flex; align-items: center; gap: 18px; }
        .brand-actions a { color: #fff; font-size: 14px; font-weight: 500; }
        .brand-actions a:hover { color: var(--secondary); }
        .menu-toggle { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; padding: 8px; }

        .channel-bar { background: #fff; border-bottom: 1px solid var(--border); }
        .channel-inner { display: flex; align-items: center; gap: 20px; height: 52px; overflow-x: auto; white-space: nowrap; }
        .channel-link {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 14px 2px;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
        }
        .channel-link:hover { color: var(--primary); border-bottom-color: var(--secondary-soft); }
        .channel-link.active { color: var(--primary); border-bottom-color: var(--secondary); font-weight: 600; }

        /* Inner page hero */
        .inner-hero {
            background: var(--primary);
            color: #fff;
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .inner-hero::after {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(0,198,178,0.08);
            top: -40px;
            right: 20px;
            pointer-events: none;
        }
        .inner-hero .hero-title { font-size: clamp(28px, 3.2vw, 36px); font-weight: 700; margin-bottom: 10px; }
        .inner-hero .hero-desc { color: #d9d7e2; max-width: 720px; font-size: 15px; }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #8B889B;
            margin-bottom: 16px;
        }
        .breadcrumb-nav a { color: #8B889B; }
        .breadcrumb-nav a:hover { color: var(--secondary); }
        .breadcrumb-nav span { color: var(--secondary); }

        /* Gear review specific */
        .review-list-card {
            display: flex;
            gap: 20px;
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 18px;
            transition: var(--transition);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .review-list-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
        .review-list-card .review-thumb { flex: 0 0 160px; border-radius: 10px; overflow: hidden; }
        .review-list-card .review-thumb img { width: 100%; height: 115px; object-fit: cover; }
        .review-list-card .review-info { flex: 1 1 260px; }
        .review-list-card .review-title { font-size: 17px; font-weight: 600; margin-bottom: 6px; color: var(--text-main); }
        .review-list-card .review-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
        .review-list-card .review-score { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

        .score-bar { display: flex; align-items: center; gap: 6px; font-size: 13px; }
        .score-bar .bar-bg { width: 90px; height: 6px; background: var(--bg-soft); border-radius: 99px; overflow: hidden; }
        .score-bar .bar-fill { height: 100%; background: var(--secondary); border-radius: 99px; }

        .stat-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 20px 22px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
        .stat-card .stat-num { font-size: 30px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
        .stat-card .stat-label { font-size: 14px; color: var(--text-secondary); }

        .gear-topic-tag {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: #fff;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: var(--transition);
            margin: 4px;
        }
        .gear-topic-tag:hover { border-color: var(--secondary); color: var(--secondary); background: rgba(0,198,178,0.06); }

        .editor-pick {
            display: flex;
            gap: 16px;
            align-items: center;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 14px 16px;
            transition: var(--transition);
            margin-bottom: 12px;
        }
        .editor-pick:hover { border-color: var(--secondary); box-shadow: var(--shadow-sm); }
        .editor-pick .pick-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }
        .editor-pick .pick-info { flex: 1; }
        .editor-pick .pick-title { font-size: 15px; font-weight: 600; color: var(--text-main); }
        .editor-pick .pick-meta { font-size: 13px; color: var(--text-muted); }

        .cta-band {
            background: linear-gradient(135deg, #1C1B27 0%, #242235 100%);
            border-radius: var(--radius-card);
            padding: 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255,159,69,0.12);
            right: -30px;
            bottom: -30px;
            pointer-events: none;
        }
        .cta-band h3 { color: #fff; font-size: 24px; margin-bottom: 8px; }
        .cta-band p { color: #d9d7e2; margin-bottom: 16px; max-width: 480px; }

        /* Footer */
        .site-footer { background: var(--primary); color: #fff; padding: 50px 0 28px; }
        .site-footer h3 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 16px; }
        .site-footer p { color: #b8b5c6; font-size: 14px; margin-bottom: 8px; }
        .footer-links { list-style: none; margin: 0; padding: 0; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a { color: #b8b5c6; font-size: 14px; transition: var(--transition); }
        .footer-links a:hover { color: var(--secondary); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 32px; padding-top: 20px; text-align: center; }
        .footer-bottom p { font-size: 13px; color: #8B889B; margin-bottom: 4px; }
        .tech-links { display: flex; justify-content: center; gap: 20px; margin-top: 10px; font-size: 13px; }
        .tech-links a { color: #8B889B; }
        .tech-links a:hover { color: var(--secondary); }

        /* Responsive */
        @media (max-width: 1024px) {
            .section { padding: 56px 0; }
            .review-list-card .review-thumb { flex: 0 0 120px; }
        }
        @media (max-width: 768px) {
            .menu-toggle { display: inline-block; }
            .brand-actions { display: none; }
            .channel-inner { gap: 12px; height: 48px; }
            .review-list-card .review-thumb { flex: 0 0 100%; }
            .review-list-card .review-thumb img { height: 180px; }
            .inner-hero { padding: 32px 0 28px; }
        }
        @media (max-width: 520px) {
            :root { --spacing-section: 40px; }
            .section { padding: 36px 0; }
            .card-img { height: 150px; }
            .brand-inner { height: 64px; }
            .brand-logo { font-size: 18px; }
            .channel-inner { height: 44px; }
            .review-list-card { padding: 14px; }
            .cta-band { padding: 28px 20px; }
            .btn { min-width: 100%; }
        }