/* roulang page: index */
:root {
            --bg-main: #0A0D14;
            --bg-secondary: #10141D;
            --bg-panel: #161C28;
            --bg-elevated: #1B2230;
            --accent-lime: #C6F135;
            --accent-ice: #5EEAD4;
            --text-high: #F3F6FA;
            --text-body: #CDD5DF;
            --text-muted: #8A94A6;
            --text-disabled: #556071;
            --border-white: rgba(255, 255, 255, 0.08);
            --border-lime: rgba(198, 241, 53, 0.35);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-sm: 8px;
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 20px rgba(198, 241, 53, 0.10);
            --transition-base: all 0.3s ease;
            --space-section: 110px;
            --space-section-sm: 70px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            background: var(--bg-main);
            color: var(--text-body);
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: var(--text-body); transition: var(--transition-base); }
        a:hover { color: var(--accent-lime); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5 { font-family: inherit; color: var(--text-high); line-height: 1.3; font-weight: 700; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

        .top-glow { position: fixed; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(198, 241, 53, 0.5), transparent); z-index: 1000; }

        /* ========== NAVIGATION ========== */
        .site-header {
            background: rgba(10, 13, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-white);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .brand-badge {
            display: grid;
            place-items: center;
            width: 36px; height: 36px;
            border-radius: 10px;
            border: 1px solid rgba(198, 241, 53, 0.45);
            font-size: 20px;
            font-weight: 800;
            color: var(--accent-lime);
            letter-spacing: -0.5px;
            position: relative;
            background: rgba(198, 241, 53, 0.05);
            box-shadow: 0 0 18px rgba(198, 241, 53, 0.08);
            text-shadow: 0 0 14px rgba(198, 241, 53, 0.35);
        }
        .brand-text { font-size: 20px; font-weight: 800; color: var(--text-high); letter-spacing: 0.02em; white-space: nowrap; }
        .brand-text span { color: var(--accent-lime); }

        .nav-menu { display: flex; align-items: center; gap: 32px; }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.02em;
            padding: 8px 2px;
            transition: color 0.25s ease;
        }
        .nav-link:hover { color: var(--text-high); }
        .nav-link.active { color: var(--text-high); }
        .nav-link.active::after { content: ""; display: block; position: absolute; bottom: -2px; left: 0; right: 0; height: 1px; background: var(--accent-lime); box-shadow: 0 0 10px rgba(198, 241, 53, 0.3); }
        .nav-link.active::before { content: ""; display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--accent-lime); box-shadow: 0 0 8px rgba(198, 241, 53, 0.6); margin-right: 6px; vertical-align: middle; }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent-lime);
            color: #0A0D14;
            font-weight: 600;
            font-size: 14px;
            border-radius: 6px;
            padding: 10px 20px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover { background: #d8fa66; color: #080A0F; box-shadow: 0 0 22px rgba(198, 241, 53, 0.2); transform: translateY(-1px); }
        .nav-cta i { font-size: 12px; transition: transform 0.3s ease; }
        .nav-cta:hover i { transform: translateX(3px); }

        .nav-toggle { display: none; background: none; border: 1px solid var(--border-white); border-radius: 8px; color: var(--text-high); font-size: 18px; width: 42px; height: 42px; cursor: pointer; align-items: center; justify-content: center; }

        .mobile-menu {
            display: none;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-white);
            padding: 16px 28px 22px;
            border-radius: 0 0 16px 16px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            position: absolute;
            top: 76px;
            left: 0;
            right: 0;
            z-index: 99;
        }
        .mobile-menu.open { display: block; }
        .mobile-menu .nav-link { display: block; padding: 12px 0; font-size: 16px; border-bottom: 1px solid rgba(255,255,255,0.04); }
        .mobile-menu .nav-cta { margin-top: 18px; width: 100%; }

        /* ========== HERO ========== */
        .hero-area { position: relative; padding: 120px 0 140px; background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat; overflow: hidden; border-bottom: 1px solid var(--border-white); }
        .hero-area::after { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(10, 13, 20, 0.97) 15%, rgba(10, 13, 20, 0.88) 48%, rgba(10, 13, 20, 0.65) 100%); z-index: 1; }
        .hero-area::before { content: ""; position: absolute; top: -120px; right: -120px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(198, 241, 53, 0.06), transparent 70%); z-index: 1; pointer-events: none; }

        .hero-inner { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; padding: 0 28px; }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-ice);
            letter-spacing: 0.06em;
            padding: 6px 16px;
            border: 1px solid rgba(94, 234, 212, 0.22);
            border-radius: 32px;
            background: rgba(94, 234, 212, 0.05);
            margin-bottom: 28px;
        }
        .hero-eyebrow i { font-size: 10px; }

        .hero-title { font-size: 54px; font-weight: 800; line-height: 1.2; color: var(--text-high); margin-bottom: 24px; letter-spacing: 0.01em; max-width: 720px; }
        .hero-title .highlight { color: var(--accent-lime); position: relative; display: inline-block; }
        .hero-title .glow { text-shadow: 0 0 20px rgba(198, 241, 53, 0.15); }

        .hero-subtitle { font-size: 18px; line-height: 1.8; color: var(--text-body); max-width: 605px; margin-bottom: 38px; }

        .hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-lime);
            color: #0A0D14;
            font-weight: 600;
            font-size: 16px;
            border-radius: 8px;
            padding: 15px 32px;
            border: 1px solid var(--accent-lime);
            transition: all 0.3s ease;
            box-shadow: 0 0 24px rgba(198, 241, 53, 0.14);
            cursor: pointer;
        }
        .btn-primary:hover { background: #d8fa66; color: #0A0D14; border-color: #d8fa66; box-shadow: 0 0 32px rgba(198, 241, 53, 0.24); transform: translateY(-2px); }
        .btn-primary i { transition: transform 0.3s; font-size: 13px; }
        .btn-primary:hover i { transform: translateX(4px); }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-high);
            font-weight: 500;
            font-size: 16px;
            border-radius: 8px;
            padding: 15px 32px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .btn-secondary:hover { border-color: var(--accent-lime); color: var(--accent-lime); background: rgba(198, 241, 53, 0.05); transform: translateY(-2px); }

        .hero-stats { display: flex; gap: 46px; margin-top: 70px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.08); }
        .stat-item .stat-number { font-size: 30px; font-weight: 800; color: var(--text-high); letter-spacing: 0.02em; display: flex; align-items: center; gap: 6px; }
        .stat-item .stat-number em { font-style: normal; color: var(--accent-lime); font-size: 18px; }
        .stat-item .stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; letter-spacing: 0.04em; }

        .hero-coord { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-muted); letter-spacing: 0.05em; margin-top: 16px; }
        .hero-coord i { font-size: 8px; color: var(--accent-ice); }

        /* ========== SECTION GENERIC ========== */
        .section-block { padding: var(--space-section) 0; position: relative; }
        .section-block.bg-alt { background: var(--bg-secondary); }
        .section-heading { max-width: 640px; margin-bottom: 58px; }

        .section-heading .section-tag { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--accent-lime); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 14px; }
        .section-heading .section-tag::before { content: ""; width: 22px; height: 1px; background: var(--accent-lime); display: inline-block; }
        .section-heading h2 { font-size: 36px; line-height: 1.4; margin-bottom: 18px; }
        .section-heading .section-desc { color: var(--text-muted); font-size: 16px; line-height: 1.8; }

        .section-heading.center { text-align: center; margin-left: auto; margin-right: auto; }
        .section-heading.center .section-tag { margin-bottom: 16px; }

        /* ========== SERVICE AREA ========== */
        .service-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; margin-bottom: 28px; }
        .service-grid.two-col { grid-template-columns: 1fr 1fr; }

        .service-featured {
            background: var(--bg-secondary);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .service-featured::after { content: ""; position: absolute; top: -60px; right: -60px; width: 180px; height: 180px; border-radius: 50%; background: radial-gradient(circle, rgba(198, 241, 53, 0.07), transparent 70%); pointer-events: none; }
        .service-featured:hover { border-color: rgba(198, 241, 53, 0.25); background: var(--bg-panel); transform: translateY(-3px); box-shadow: var(--shadow-hover); }

        .featured-icon { width: 62px; height: 62px; border-radius: 16px; display: grid; place-items: center; font-size: 24px; margin-bottom: 26px; background: rgba(198, 241, 53, 0.1); border: 1px solid rgba(198, 241, 53, 0.2); color: var(--accent-lime); box-shadow: var(--shadow-glow); }

        .service-card-h { font-size: 20px; font-weight: 700; margin-bottom: 14px; }
        .service-card-desc { font-size: 15px; color: var(--text-muted); line-height: 1.75; margin-bottom: 24px; }
        .service-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
        .meta-tag { font-size: 12px; padding: 4px 12px; border-radius: 40px; border: 1px solid rgba(94, 234, 212, 0.22); color: var(--accent-ice); background: rgba(94, 234, 212, 0.04); font-weight: 500; transition: all 0.3s; }
        .meta-tag:hover { border-color: rgba(198, 241, 53, 0.4); color: var(--accent-lime); background: rgba(198, 241, 53, 0.04); }

        .service-link { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 500; color: var(--text-high); border-bottom: 1px solid rgba(255,255,255,0.12); padding-bottom: 4px; }
        .service-link:hover { color: var(--accent-lime); border-color: var(--accent-lime); }
        .service-link i { font-size: 12px; }

        .service-list-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-md);
            padding: 30px 32px;
            transition: all 0.3s ease;
        }
        .service-list-item:hover { border-color: rgba(198, 241, 53, 0.22); transform: translateY(-3px); background: var(--bg-panel); box-shadow: var(--shadow-hover); }
        .service-list-num { font-size: 23px; font-weight: 800; color: transparent; -webkit-text-stroke: 1px var(--accent-lime); margin-bottom: 12px; }
        .service-list-item h3 { font-size: 18px; margin-bottom: 8px; }
        .service-list-item p { font-size: 14px; color: var(--text-muted); line-height: 1.65; margin-bottom: 16px; }
        .service-more { font-size: 13px; color: var(--accent-ice); display: inline-flex; align-items: center; gap: 5px; }
        .service-more:hover { color: var(--accent-lime); }

        /* ========== STATS/ADVANTAGE ========== */
        .stats-area { border-top: 1px solid var(--border-white); border-bottom: 1px solid var(--border-white); background: #080b10; padding: 0; }
        .stats-grid-hori { display: grid; grid-template-columns: repeat(4, 1fr); }
        .stat-hori-block { padding: 42px 30px; border-left: 1px solid rgba(255, 255, 255, 0.05); text-align: left; transition: background 0.3s; }
        .stat-hori-block:first-child { border-left: 0; }
        .stat-hori-block:hover { background: rgba(255,255,255,0.012); }
        .stat-hori-num { font-size: 42px; font-weight: 800; color: var(--text-high); letter-spacing: 0.01em; line-height: 1; }
        .stat-hori-num sup { color: var(--accent-lime); font-size: 18px; margin-left: 3px; font-weight: 700; }
        .stat-hori-label { font-size: 14px; color: var(--text-muted); margin-top: 10px; display: flex; align-items: center; gap: 8px; }
        .stat-hori-label i { font-size: 6px; color: var(--accent-ice); }

        /* ========== DYNAMIC LIST ========== */
        .dynamic-layout { display: grid; grid-template-columns: 1.15fr 1.85fr; gap: 60px; align-items: start; }

        .pinned-title { font-size: 15px; font-weight: 600; color: var(--text-muted); margin-bottom: 26px; display: flex; align-items: center; gap: 10px; letter-spacing: 0.04em; text-transform: uppercase; }
        .pinned-title i { color: var(--accent-lime); font-size: 10px; }
        .pinned-desc { font-size: 32px; line-height: 1.6; color: var(--text-high); font-weight: 700; margin-bottom: 22px; }
        .pinned-desc-second { font-size: 17px; color: var(--text-body); line-height: 1.85; margin-bottom: 28px; }
        .pinned-list { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; }
        .pinned-list li { display: flex; align-items: center; gap: 14px; font-size: 15px; padding: 12px 18px; background: var(--bg-secondary); border: 1px solid var(--border-white); border-radius: 10px; transition: all 0.25s; }
        .pinned-list li:hover { border-color: rgba(198, 241, 53, 0.2); transform: translateX(4px); }
        .pinned-list li i { color: var(--accent-lime); font-size: 14px; width: 20px; text-align: center; }

        .dynamic-items { display: flex; flex-direction: column; gap: 14px; }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 22px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-md);
            padding: 26px 28px;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .news-item:hover { border-color: rgba(198, 241, 53, 0.2); background: var(--bg-panel); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

        .news-indicator { width: 3px; flex-shrink: 0; height: 36px; align-self: center; border-radius: 4px; background: var(--accent-lime); opacity: 0.6; box-shadow: 0 0 10px rgba(198, 241, 53, 0.25); }
        .news-item-main { flex: 1; }
        .news-item .news-cat { font-size: 12px; color: var(--accent-ice); background: rgba(94, 234, 212, 0.07); border: 1px solid rgba(94, 234, 212, 0.15); padding: 3px 10px; border-radius: 30px; display: inline-block; margin-bottom: 9px; letter-spacing: 0.03em; }
        .news-item h3 { font-size: 17px; line-height: 1.55; margin-bottom: 8px; font-weight: 600; }
        .news-item .news-excerpt { font-size: 14px; color: var(--text-muted); letter-spacing: 0.01em; }
        .news-item .news-meta { font-size: 12px; color: var(--text-disabled); margin-top: 12px; display: flex; gap: 14px; align-items: center; }
        .news-item .news-meta span { display: inline-flex; gap: 4px; }
        .news-item .news-meta i { font-size: 10px; color: var(--accent-ice); }
        .news-arrow { align-self: center; color: var(--text-muted); font-size: 16px; transition: all 0.3s; }
        .news-item:hover .news-arrow { color: var(--accent-lime); transform: translateX(4px); }

        .empty-list { background: rgba(255,255,255,0.02); border: 1px dashed rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 34px 30px; text-align: center; color: var(--text-muted); font-size: 15px; }

        /* ========== SCENARIO / GALLERY ========== */
        .scenario-row { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: center; margin-bottom: 64px; }
        .scenario-row.reverse { direction: rtl; }
        .scenario-row > * { direction: ltr; }

        .scenario-imgbox { position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 16/10; border: 1px solid var(--border-white); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3); }
        .scenario-imgbox img { width: 100%; height: 100%; object-fit: cover; transition: all 0.55s ease; }
        .scenario-imgbox:hover img { transform: scale(1.04); }
        .scenario-imgbox::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,13,20,0.7), transparent 55%); z-index: 1; }
        .scenario-badge { position: absolute; bottom: 0; left: 0; right: 0; padding: 22px 24px; z-index: 2; display: flex; align-items: center; justify-content: space-between; }
        .scenario-badge span { font-size: 14px; color: var(--text-high); font-weight: 500; }
        .scenario-badge em { font-style: normal; font-size: 12px; color: var(--accent-ice); border: 1px solid rgba(94,234,212,0.25); padding: 3px 10px; border-radius: 20px; backdrop-filter: blur(6px); }

        .scenario-content .scenario-kicker { font-size: 13px; font-weight: 600; color: var(--accent-lime); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.08em; display: flex; align-items: center; gap: 10px; }
        .scenario-content .scenario-kicker::before { content: "┌"; color: rgba(198, 241, 53, 0.5); font-size: 16px; }
        .scenario-content h3 { font-size: 32px; line-height: 1.4; margin-bottom: 22px; }
        .scenario-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 26px 0 30px; }

        .step-chip { background: rgba(255,255,255,0.03); border: 1px solid var(--border-white); border-radius: 10px; padding: 16px; transition: all 0.3s; }
        .step-chip:hover { border-color: rgba(198,241,53,0.25); background: rgba(198,241,53,0.03); transform: translateY(-2px); }
        .step-chip .chip-num { font-size: 22px; font-weight: 800; color: rgba(198, 241, 53, 0.5); line-height: 1; margin-bottom: 8px; }
        .step-chip p { font-size: 14px; line-height: 1.7; }
        .step-chip .chip-label { display: block; font-size: 15px; font-weight: 600; color: var(--text-high); margin-bottom: 6px; }

        .scenario-text-block { font-size: 16px; line-height: 1.8; color: var(--text-body); }
        .scenario-text-block p { margin-bottom: 16px; }

        /* ========== SOLUTION ========== */
        .solution-hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; }

        .solution-left h2 { margin-bottom: 24px; }
        .solution-left .lead-text { color: var(--text-muted); font-size: 16px; line-height: 1.9; margin-bottom: 30px; }
        .solution-benefits { display: flex; flex-direction: column; gap: 18px; }
        .benefit-check { display: flex; gap: 16px; align-items: flex-start; }
        .benefit-check i { color: var(--accent-lime); font-size: 18px; margin-top: 3px; flex-shrink: 0; }
        .benefit-check strong { display: block; color: var(--text-high); font-size: 16px; margin-bottom: 2px; }
        .benefit-check span { font-size: 14px; color: var(--text-disabled); }

        .solution-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-white);
            border-radius: 20px;
            padding: 42px 42px 28px;
            position: relative;
            overflow: hidden;
        }
        .solution-card::before { content: ""; position: absolute; top: -80px; right: -80px; width: 200px; height: 200px; background: radial-gradient(circle, rgba(94,234,212,0.05), transparent 65%); border-radius: 50%; }
        .solution-card .sol-num { font-size: 13px; color: var(--accent-ice); letter-spacing: 0.1em; }

        .step-list-flow { display: flex; flex-direction: column; margin-top: 18px; }

        .step-flow-item { display: flex; gap: 20px; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,0.06); position: relative; }
        .step-flow-item:last-child { border-bottom: none; }
        .step-dot { width: 34px; height: 34px; flex-shrink: 0; border-radius: 10px; display: grid; place-items: center; font-weight: 700; font-size: 15px; background: rgba(198, 241, 53, 0.12); color: var(--accent-lime); }
        .step-flow-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; text-transform: none; }
        .step-flow-item p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

        /* ========== FEATURE ROW INFO ========== */
        .info-band { background: var(--bg-secondary); border-top: 1px solid var(--border-white); border-bottom: 1px solid var(--border-white); }
        .info-band .section-heading { margin-bottom: 44px; }
        .info-grid-vertical { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; }

        .info-num-item { border-left: 1px solid rgba(255,255,255,0.08); padding: 0 0 0 34px; transition: border-color 0.3s; }
        .info-num-item:hover { border-left-color: var(--accent-lime); }
        .info-num-item .num-a { font-size: 15px; font-weight: 800; color: var(--accent-lime); display: block; margin-bottom: 12px; }
        .info-num-item h3 { font-size: 20px; margin-bottom: 10px; }
        .info-num-item p { font-size: 15px; color: var(--text-muted); line-height: 1.7; }

        /* ========== FAQ ========== */
        .faq-wrap { max-width: 780px; margin: 0 auto; }

        .faq-acc-item { border: 1px solid var(--border-white); border-radius: 14px; margin-bottom: 12px; background: var(--bg-secondary); overflow: hidden; transition: all 0.3s ease; }
        .faq-acc-item:hover { border-color: rgba(255,255,255,0.14); }
        .faq-acc-item.open { border-color: rgba(198, 241, 53, 0.25); background: var(--bg-panel); }

        .faq-acc-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 28px; cursor: pointer; gap: 16px; }
        .faq-acc-header h3 { font-size: 16px; margin: 0; flex: 1; text-transform: none; letter-spacing: 0; }
        .faq-icon { width: 28px; height: 28px; flex-shrink: 0; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(255,255,255,0.15); color: var(--accent-ice); transition: all 0.4s ease; }
        .faq-icon i { font-size: 12px; transition: all 0.4s; }
        .faq-acc-item.open .faq-icon { background: var(--accent-lime); color: #0A0D14; border-color: var(--accent-lime); transform: rotate(0deg); }
        .faq-acc-item.open .faq-icon i { color: #0A0D14; }

        .faq-acc-body { max-height: 0; overflow: hidden; padding: 0 28px; color: var(--text-body); line-height: 1.8; font-size: 15px; transition: max-height 0.4s ease, padding 0.3s ease; }
        .faq-acc-body-inner p { padding-bottom: 26px; }

        /* ========== CTA ========== */
        .cta-area { padding: 110px 0; background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat; position: relative; }
        .cta-area::before { content: ""; position: absolute; inset: 0; background: var(--bg-main); opacity: 0.88; z-index: 1; }
        .cta-inner { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }

        .cta-area h2 { font-size: 44px; margin-bottom: 24px; letter-spacing: 0.02em; }
        .cta-area h2 span { color: var(--accent-lime); position: relative; }
        .cta-area p { font-size: 19px; color: var(--text-body); margin-bottom: 42px; line-height: 1.8; }
        .cta-btn-row { display: flex; justify-content: center; align-items: center; gap: 18px; flex-wrap: wrap; }

        .cta-start-btn {
            background: var(--accent-lime);
            color: #0A0D14;
            font-size: 16px;
            font-weight: 600;
            border: 1px solid transparent;
            padding: 16px 42px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 28px rgba(198, 241, 53, 0.17);
        }
        .cta-start-btn:hover { box-shadow: 0 0 34px rgba(198, 241, 53, 0.28); transform: translateY(-3px); background: #d9fb68; color: #0A0D14; }
        .cta-outline-btn { display: inline-flex; align-items: center; gap: 10px; color: var(--text-high); background: transparent; border: 1px solid rgba(255,255,255,0.25); padding: 16px 34px; font-size: 16px; border-radius: 8px; transition: all 0.3s; }
        .cta-outline-btn:hover { border-color: var(--accent-ice); color: var(--accent-ice); transform: translateY(-2px); background: rgba(94,234,212,0.03); }

        .cta-microline { display: flex; align-items: center; justify-content: center; gap: 15px; margin-top: 32px; }
        .cta-microline span { font-size: 13px; color: var(--text-muted); }
        .cta-microline .dots { display: inline-flex; gap: 4px; }
        .cta-microline .dots i { width: 4px; height: 4px; background: rgba(94,234,212,0.5); border-radius: 50%; font-style: normal; }

        /* ========== FOOTER ========== */
        .site-footer { background: #080B11; border-top: 1px solid var(--border-white); padding: 64px 0 0; }
        .footer-main { display: grid; grid-template-columns: 2fr 0.8fr 1.2fr; gap: 48px; margin-bottom: 44px; }
        .footer-brand .brand { margin-bottom: 18px; }
        .footer-brand .brand-text { font-size: 24px; }
        .footer-desc-line { font-size: 14px; color: var(--text-muted); line-height: 1.75; max-width: 360px; }
        .footer-title { font-size: 15px; font-weight: 600; color: var(--text-high); margin-bottom: 18px; letter-spacing: 0.03em; }
        .footer-links-column { display: flex; flex-direction: column; gap: 12px; }
        .footer-links-column a { font-size: 14px; color: var(--text-muted); transition: all 0.2s; }
        .footer-links-column a:hover { color: var(--accent-lime); padding-left: 8px; }
        .footer-contact-list { display: flex; flex-direction: column; gap: 15px; }
        .footer-contact-list li { display: flex; gap: 12px; font-size: 14px; color: var(--text-muted); align-items: flex-start; }
        .footer-contact-list i { color: var(--accent-ice); font-size: 15px; margin-top: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
        .footer-copy { font-size: 13px; color: var(--text-disabled); }
        .footer-copy a { color: var(--text-disabled); }
        .footer-copy a:hover { color: var(--accent-lime); }
        .footer-safeinfo { font-size: 12px; color: var(--text-disabled); display: flex; gap: 16px; align-items: center; }

        /* ========== REVEAL EFFECT ========== */
        .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s cubic-bezier(0.33, 1, 0.68, 1), transform 0.7s cubic-bezier(0.33, 1, 0.68, 1); }
        .reveal.visible { opacity: 1; transform: translateY(0); }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title { font-size: 42px; }
            .service-grid { grid-template-columns: 1fr 1fr; }
            .service-featured { grid-column: 1/-1; }
            .solution-hero { grid-template-columns: 1fr; }
            .scenario-row { grid-template-columns: 1fr; margin-bottom: 48px; }
            .scenario-row.reverse { direction: ltr; }
            .scenario-row .scenario-content{order: 2; }
            .scenario-row .scenario-imgbox { order: 1; }
            .dynamic-layout { grid-template-columns: 1fr; }
            .stats-grid-hori { grid-template-columns: 1fr 1fr; }
            .footer-main { grid-template-columns: 1fr 1fr; }
            .info-grid-vertical { grid-template-columns: 1fr; gap: 22px; }
            :root { --space-section: 74px; }
        }

        @media (max-width: 840px) {
            .nav-menu { display: none; }
            .nav-toggle { display: inline-flex; }
            .hero-title { font-size: 36px; }
            .hero-area { padding: 90px 0 110px; }
            .hero-actions .btn-primary, .hero-actions .btn-secondary { font-size: 15px; padding: 14px 24px; }
            .section-block { --space-section: 60px; }
            .section-heading h2 { font-size: 30px; }
            .scenario-steps{grid-template-columns:1fr;}
            .pinned-desc { font-size: 24px; }
            .dynamic-layout { gap: 36px; }
            .footer-main { grid-template-columns: 1fr; gap: 30px; }
            .cta-area h2{font-size: 30px;}
        }

        @media (max-width: 520px) {
            .nav-cta { display: none; }
            .header-inner { height: 68px; }
            .brand-text { font-size: 18px; }
            .hero-stats { gap: 24px; flex-direction: column; }
            .stats-grid-hori { grid-template-columns: 1fr; }
            .hero-title { font-size: 30px; }
            .service-grid.two-col { grid-template-columns: 1fr; }
            .service-featured { padding: 28px 22px; }
            .news-item { padding: 20px; flex-direction: column; gap: 10px; }
            .news-arrow { display: none; }
            .dropdown-menu-top { display: block; }
            .cta-start-btn, .cta-outline-btn { display: flex; width: 100%; justify-content: center; padding: 16px 20px; }
            .footer-bottom { flex-direction: column; justify-content: center; text-align: center;}
        }

        ::selection { background: rgba(198, 241, 53, 0.25); color: #fff; }

/* roulang page: category1 */
:root {
            --bg-deep: #0A0D14;
            --bg-base: #0E121A;
            --bg-panel: #10141D;
            --bg-raise: #161C28;
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(255, 255, 255, 0.14);
            --neon: #C6F135;
            --neon-soft: rgba(198, 241, 53, 0.14);
            --ice: #5EEAD4;
            --ice-soft: rgba(94, 234, 212, 0.1);
            --text-hi: #F3F6FA;
            --text-body: #CDD5DF;
            --text-dim: #8A94A6;
            --text-mute: #556071;
            --radius-s: 6px;
            --radius-m: 10px;
            --radius-l: 16px;
            --shadow-x: 0 18px 42px rgba(0, 0, 0, 0.28);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input {
            font-family: inherit;
            color: inherit;
        }

        ul,
        ol,
        p,
        figure,
        h1,
        h2,
        h3,
        h4 {
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .grid-container {
            max-width: 1240px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1200;
            background: rgba(10, 13, 20, 0.92);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .site-header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(198, 241, 53, 0.48), transparent);
        }

        .header-inner {
            height: 74px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex-shrink: 0;
        }

        .brand-badge {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(145deg, #151B28, #0D1118);
            border: 1px solid rgba(198, 241, 53, 0.45);
            color: var(--neon);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 800;
            letter-spacing: -0.02em;
            box-shadow: 0 0 18px rgba(198, 241, 53, 0.12);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: 0;
            display: inline-flex;
            align-items: baseline;
            gap: 2px;
            white-space: nowrap;
        }

        .brand-text span {
            color: var(--neon);
            font-size: 14px;
            font-weight: 700;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: nowrap;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 9px 15px;
            border-radius: 999px;
            font-size: 15px;
            color: #A4AEBF;
            line-height: 1.4;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .nav-link:hover {
            color: var(--text-hi);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-link.active {
            color: #EDF7D6;
            font-weight: 600;
            background: rgba(198, 241, 53, 0.08);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 15px;
            right: 15px;
            height: 2px;
            border-radius: 2px;
            background: var(--neon);
            box-shadow: 0 0 12px rgba(198, 241, 53, 0.65);
        }

        .nav-link.active::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--neon);
            box-shadow: 0 0 10px rgba(198, 241, 53, 0.9);
            margin-right: 4px;
            flex: 0 0 auto;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-left: 10px;
            border-radius: var(--radius-s);
            font-weight: 700;
            color: #0A0D14;
            background: var(--neon);
            transition: background 0.25s ease, box-shadow 0.25s ease;
        }

        .nav-cta:hover {
            background: #DDFB6D;
            box-shadow: 0 0 0 1px rgba(198, 241, 53, 0.4), 0 0 18px rgba(198, 241, 53, 0.2);
        }

        .nav-cta i {
            transition: transform 0.25s ease;
        }

        .nav-cta:hover i {
            transform: translateX(4px);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--line);
            border-radius: var(--radius-m);
            color: var(--text-hi);
            font-size: 18px;
            cursor: pointer;
        }

        .page-hero {
            position: relative;
            padding: 138px 0 84px;
            background:
                linear-gradient(180deg, rgba(10, 13, 20, 0.88) 0%, rgba(10, 13, 20, 0.94) 70%, rgba(10, 13, 20, 1) 100%),
                url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
            border-bottom: 1px solid var(--line);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(198, 241, 53, 0.4), transparent);
        }

        .hero-inner {
            max-width: 860px;
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 18px;
        }

        .breadcrumb i {
            color: var(--ice);
            font-size: 12px;
            opacity: 0.8;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: #B9F2E7;
            background: rgba(94, 234, 212, 0.08);
            border: 1px solid rgba(94, 234, 212, 0.2);
            margin-bottom: 22px;
            letter-spacing: 0.02em;
        }

        .hero-tag i {
            color: var(--ice);
        }

        .page-hero h1 {
            color: var(--text-hi);
            font-size: clamp(38px, 5vw, 56px);
            line-height: 1.16;
            font-weight: 800;
            letter-spacing: 0;
            max-width: 820px;
            animation: riseUp 0.72s ease both;
        }

        .page-hero h1 .accent-green {
            color: var(--neon);
        }

        .hero-lead {
            margin-top: 22px;
            max-width: 760px;
            font-size: 17px;
            color: var(--text-body);
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 34px;
            animation: riseUp 0.8s 0.08s ease both;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 12px 24px;
            border-radius: var(--radius-s);
            font-weight: 700;
            font-size: 16px;
            line-height: 1.4;
            min-height: 46px;
            border: 1px solid transparent;
            transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
            cursor: pointer;
        }

        .btn i {
            transition: transform 0.25s ease;
        }

        .btn:hover i {
            transform: translateX(3px);
        }

        .btn-primary {
            background: var(--neon);
            color: #0A0D14;
            box-shadow: 0 0 0 1px rgba(198, 241, 53, 0.2), 0 0 0 rgba(198, 241, 53, 0);
        }

        .btn-primary:hover {
            background: #DEF76D;
            transform: translateY(-2px);
            box-shadow: 0 0 0 1px rgba(198, 241, 53, 0.4), 0 14px 26px rgba(0, 0, 0, 0.24);
        }

        .btn-ghost {
            background: var(--bg-panel);
            border-color: var(--line-strong);
            color: #E9EDF4;
        }

        .btn-ghost:hover {
            border-color: rgba(198, 241, 53, 0.7);
            color: var(--text-hi);
            background: rgba(198, 241, 53, 0.08);
            transform: translateY(-2px);
        }

        .category-body {
            padding: 92px 0 30px;
            position: relative;
        }

        .split-layout {
            display: flex;
            align-items: flex-start;
            gap: 56px;
        }

        .split-main {
            flex: 1 1 72%;
            min-width: 0;
        }

        .split-aside {
            flex: 0 0 300px;
            width: 300px;
            position: sticky;
            top: 100px;
        }

        .cat-section {
            margin-bottom: 66px;
        }

        .cat-head {
            display: flex;
            align-items: baseline;
            gap: 14px;
            border-bottom: 1px solid var(--line);
            padding-bottom: 13px;
            margin-bottom: 28px;
        }

        .sec-no {
            font-size: 13px;
            font-weight: 700;
            color: var(--neon);
            font-variant-numeric: tabular-nums;
            opacity: 0.85;
        }

        .cat-head h2 {
            font-size: 28px;
            line-height: 1.35;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -0.01em;
        }

        .cat-intro {
            font-size: 17px;
            color: var(--text-body);
            max-width: 800px;
            margin-bottom: 20px;
        }

        .lead-p {
            font-size: 17px;
            color: #D7DEE8;
            margin-bottom: 14px;
        }

        .feature-list {
            margin-top: 28px;
            border-top: 1px solid var(--line);
        }

        .feature-line {
            display: grid;
            grid-template-columns: 46px 1fr;
            gap: 16px;
            padding: 20px 2px;
            border-bottom: 1px solid var(--line);
        }

        .feature-line-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-s);
            background: rgba(198, 241, 53, 0.08);
            border: 1px solid rgba(198, 241, 53, 0.18);
            color: var(--neon);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            margin-top: 3px;
        }

        .feature-line strong {
            display: block;
            color: #ECF1F7;
            font-size: 17px;
            margin-bottom: 4px;
            font-weight: 700;
        }

        .feature-line p {
            font-size: 15px;
            color: var(--text-dim);
            line-height: 1.8;
        }

        .cat-figure {
            margin-top: 28px;
            border: 1px solid var(--line);
            border-radius: 18px;
            overflow: hidden;
            background: var(--bg-panel);
        }

        .cat-figure img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .cat-figure figcaption {
            font-size: 13px;
            color: var(--text-dim);
            padding: 12px 16px;
            border-top: 1px solid var(--line);
            background: rgba(11, 14, 21, 0.5);
        }

        .table-scroll {
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            overflow-x: auto;
            background: rgba(16, 20, 29, 0.72);
        }

        .cat-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            min-width: 620px;
        }

        .cat-table th {
            text-align: left;
            background: #0C1019;
            color: #A4AEC0;
            font-weight: 700;
            font-size: 14px;
            padding: 14px 18px;
            border-bottom: 1px solid var(--line);
            white-space: nowrap;
        }

        .cat-table td {
            padding: 15px 18px;
            border-bottom: 1px solid var(--line);
            color: #C8D1DD;
            vertical-align: top;
        }

        .cat-table tbody tr:last-child td {
            border-bottom: 0;
        }

        .cat-table tbody tr:hover td {
            background: rgba(255, 255, 255, 0.025);
        }

        .cat-table td:first-child {
            color: #EDF0F6;
            font-weight: 700;
            white-space: nowrap;
        }

        .status-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 1px solid var(--line);
            margin-top: 12px;
        }

        .status-line {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 4px;
            border-bottom: 1px solid var(--line);
        }

        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex: 0 0 auto;
            margin-top: 7px;
        }

        .dot-go {
            background: var(--neon);
            box-shadow: 0 0 12px rgba(198, 241, 53, 0.5);
        }

        .dot-wait {
            background: var(--ice);
            box-shadow: 0 0 12px rgba(94, 234, 212, 0.3);
        }

        .dot-mute {
            background: #4F5C6C;
            box-shadow: 0 0 8px rgba(79, 92, 108, 0.4);
        }

        .status-line strong {
            display: block;
            color: #EDF1F6;
            font-size: 16px;
            font-weight: 700;
        }

        .status-line p {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 2px;
        }

        .flow-list {
            position: relative;
            margin-top: 26px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .flow-step {
            position: relative;
            padding: 22px 0 22px 78px;
            border-bottom: 1px solid var(--line);
        }

        .flow-step:last-child {
            border-bottom: 0;
        }

        .flow-no {
            position: absolute;
            left: 0;
            top: 24px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: 1px solid rgba(198, 241, 53, 0.4);
            background: rgba(198, 241, 53, 0.08);
            color: var(--neon);
            font-weight: 800;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-variant-numeric: tabular-nums;
        }

        .flow-step strong {
            display: block;
            font-size: 17px;
            color: #ECF0F6;
            margin-bottom: 5px;
        }

        .flow-step p {
            color: var(--text-dim);
            font-size: 15px;
            max-width: 640px;
        }

        .scene-list {
            margin-top: 18px;
            display: flex;
            flex-direction: column;
            border-top: 1px solid var(--line);
        }

        .scene-item {
            display: grid;
            grid-template-columns: 28px 1fr;
            gap: 12px;
            align-items: flex-start;
            padding: 17px 2px;
            border-bottom: 1px solid var(--line);
        }

        .scene-item i {
            color: var(--ice);
            font-size: 15px;
            margin-top: 4px;
        }

        .scene-item strong {
            color: #ECF0F6;
            font-size: 16px;
            font-weight: 700;
            display: block;
            margin-bottom: 3px;
        }

        .scene-item p {
            color: var(--text-dim);
            font-size: 14px;
        }

        .accordion {
            list-style: none;
            background: transparent;
            border: 0;
            margin: 0;
        }

        .accordion-item {
            background: transparent;
            border-bottom: 1px solid var(--line) !important;
            margin-bottom: 0;
        }

        .accordion-title {
            position: relative;
            display: block;
            padding: 18px 42px 18px 0;
            color: #E7ECF3 !important;
            font-size: 16px;
            font-weight: 700;
            line-height: 1.6;
            background: transparent !important;
            border: 0 !important;
        }

        .accordion-title:hover,
        .accordion-title:focus {
            color: var(--neon) !important;
            background: rgba(255, 255, 255, 0.03) !important;
        }

        .accordion-title::after {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f078";
            position: absolute;
            right: 2px;
            top: 50%;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--neon);
            transform: translateY(-50%);
            font-size: 13px;
            border-radius: 50%;
            background: rgba(198, 241, 53, 0.1);
        }

        .accordion-item.is-active > .accordion-title::after {
            content: "\f077";
        }

        .accordion-content {
            padding: 0 24px 20px 0 !important;
            color: var(--text-body) !important;
            background: transparent !important;
            font-size: 15px;
            line-height: 1.85;
        }

        .accordion-content p {
            color: #B8C1CF;
        }

        .side-card {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-l);
            padding: 21px 20px;
            margin-bottom: 18px;
        }

        .side-title {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-hi);
            font-weight: 700;
            font-size: 16px;
            padding-bottom: 13px;
            margin-bottom: 12px;
            border-bottom: 1px solid var(--line);
        }

        .side-title i {
            color: var(--neon);
            font-size: 14px;
        }

        .anchor-list {
            display: flex;
            flex-direction: column;
        }

        .anchor-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 9px 4px;
            font-size: 14px;
            color: #AEB8C7;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .anchor-list a:last-child {
            border-bottom: 0;
        }

        .anchor-list a:hover {
            color: var(--neon);
            padding-left: 8px;
        }

        .anchor-list a i {
            font-size: 12px;
            color: var(--text-mute);
            transition: transform 0.2s ease, color 0.2s ease;
        }

        .anchor-list a:hover i {
            color: var(--neon);
            transform: translateX(3px);
        }

        .side-cta-card {
            background:
                linear-gradient(180deg, rgba(16, 20, 29, 0.95), rgba(10, 13, 20, 0.98)),
                url("/assets/images/coverpic/cover-3.png") center / cover no-repeat;
            border: 1px solid rgba(198, 241, 53, 0.18);
        }

        .side-cta-card .side-title i {
            color: var(--ice);
        }

        .side-status-line {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin: 16px 0;
        }

        .side-status-line span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #B8C1CF;
        }

        .side-cta-list {
            display: flex;
            flex-direction: column;
            gap: 11px;
            margin-top: 16px;
        }

        .cta-band {
            margin-top: 70px;
            padding: 76px 0;
            background:
                linear-gradient(120deg, rgba(10, 13, 20, 0.94), rgba(10, 13, 20, 0.8)),
                url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            position: relative;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            color: var(--text-hi);
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: var(--text-body);
            max-width: 640px;
            font-size: 15px;
            margin: 0;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .site-footer {
            padding: 66px 0 26px;
            background: #070A10;
            border-top: 1px solid var(--line);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1.1fr 1.4fr;
            gap: 52px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--line);
        }

        .footer-brand .brand {
            margin-bottom: 18px;
        }

        .footer-desc-line {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.85;
            max-width: 340px;
            margin-top: 16px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #D9E0EA;
            margin-bottom: 15px;
        }

        .footer-links-column {
            display: flex;
            flex-direction: column;
            gap: 11px;
        }

        .footer-links-column a {
            color: var(--text-dim);
            font-size: 14px;
            transition: color 0.2s ease, transform 0.2s ease;
        }

        .footer-links-column a:hover {
            color: var(--neon);
            transform: translateX(3px);
        }

        .footer-contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 11px;
            padding: 0;
            margin: 0;
        }

        .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--text-dim);
            font-size: 14px;
            line-height: 1.6;
            list-style: none;
        }

        .footer-contact-list li i {
            color: var(--ice);
            margin-top: 4px;
            font-size: 12px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 23px;
        }

        .footer-copy {
            color: var(--text-mute);
            font-size: 13px;
        }

        .footer-safeinfo {
            color: #626D7E;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-safeinfo i {
            color: rgba(94, 234, 212, 0.45);
        }

        @keyframes riseUp {
            from {
                opacity: 0;
                transform: translateY(18px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 1099px) {
            .split-layout {
                gap: 32px;
            }

            .split-aside {
                flex-basis: 270px;
                width: 270px;
            }
        }

        @media (max-width: 1023px) {
            .header-inner {
                height: auto;
                min-height: 70px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-menu {
                position: absolute;
                top: calc(100% + 8px);
                left: 16px;
                right: 16px;
                background: var(--bg-panel);
                border: 1px solid var(--line);
                border-radius: var(--radius-l);
                padding: 14px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                display: none;
                box-shadow: 0 24px 50px rgba(0, 0, 0, 0.32);
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-link {
                font-size: 16px;
                padding: 12px 16px;
            }

            .nav-link.active::after {
                bottom: 2px;
                left: 20px;
                right: 20px;
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
                min-height: 44px;
            }

            .page-hero {
                padding: 116px 0 66px;
            }

            .page-hero h1 {
                font-size: 38px;
            }

            .split-layout {
                flex-direction: column;
                align-items: stretch;
            }

            .split-aside {
                position: static;
                flex: 0 0 auto;
                width: 100%;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                margin-top: 10px;
            }

            .side-card {
                margin-bottom: 0;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .header-inner {
                padding: 0 6px;
            }

            .container {
                padding: 0 20px;
            }

            .page-hero {
                padding: 104px 0 52px;
            }

            .page-hero h1 {
                font-size: 31px;
                line-height: 1.3;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .cat-head h2 {
                font-size: 24px;
            }

            .cat-section {
                margin-bottom: 50px;
            }

            .feature-line-icon {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }

            .feature-line {
                grid-template-columns: 40px 1fr;
                gap: 10px;
            }

            .cat-figure {
                border-radius: 12px;
            }

            .flow-step {
                padding-left: 0;
                padding-top: 22px;
            }

            .flow-step .flow-no {
                position: static;
                display: inline-flex;
                margin-bottom: 10px;
            }

            .split-aside {
                display: flex;
                flex-direction: column;
            }

            .accordion-title {
                font-size: 15px;
                padding-right: 48px;
            }

            .cta-band {
                padding: 54px 0;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
                flex-direction: column;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .table-scroll {
                border-radius: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .brand-text {
                font-size: 18px;
            }

            .brand-text span {
                font-size: 13px;
            }

            .brand-badge {
                width: 31px;
                height: 31px;
            }

            .cat-head h2 {
                font-size: 21px;
            }

            .cat-head {
                gap: 8px;
            }

            .sec-no {
                font-size: 12px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }

            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: article */
:root {
            --bg: #0A0D14;
            --bg-2: #10141D;
            --panel: #161C28;
            --lime: #C6F135;
            --ice: #5EEAD4;
            --text: #F3F6FA;
            --body: #CDD5DF;
            --muted: #8A94A6;
            --disable: #556071;
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(255, 255, 255, 0.16);
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
            --space-lg: 96px;
            --space-md: 64px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--body);
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul,
        ol {
            list-style: none;
        }

        img {
            display: block;
            max-width: 100%;
        }

        button,
        input,
        textarea {
            font: inherit;
            border: none;
            background: none;
            color: inherit;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--lime);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: clamp(16px, 3vw, 28px);
            padding-right: clamp(16px, 3vw, 28px);
        }

        .narrow-container {
            width: 100%;
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: clamp(16px, 3vw, 28px);
            padding-right: clamp(16px, 3vw, 28px);
        }

        .skip-link {
            position: absolute;
            left: -9999px;
            top: 0;
            background: var(--lime);
            color: #0A0D14;
            padding: 10px 18px;
            border-radius: 0 0 8px 0;
            font-weight: 700;
            z-index: 300;
        }

        .skip-link:focus {
            left: 0;
        }

        .site-header {
            position: relative;
            position: sticky;
            top: 0;
            z-index: 120;
            background: rgba(10, 13, 20, 0.94);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(198, 241, 53, 0.18);
            height: 78px;
        }

        .site-header::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(198, 241, 53, 0.55) 50%, transparent 100%);
            pointer-events: none;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex-shrink: 0;
        }

        .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--lime);
            color: #0A0D14;
            border-radius: 10px 10px 10px 2px;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 0 0 5px rgba(198, 241, 53, 0.08);
        }

        .brand-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.01em;
            line-height: 1.1;
        }

        .brand-text span {
            display: inline-block;
            margin-left: 4px;
            color: var(--ice);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            color: var(--body);
            font-size: 15px;
            font-weight: 500;
            height: 78px;
            transition: color 0.2s ease;
            letter-spacing: 0.01em;
        }

        .nav-link::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--lime);
            margin-right: 0;
            opacity: 0;
            box-shadow: 0 0 10px rgba(198, 241, 53, 0.8);
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 18px;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--lime);
            box-shadow: 0 0 8px rgba(198, 241, 53, 0.6);
            transition: width 0.22s ease;
        }

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

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--lime);
        }

        .nav-link.active::before {
            opacity: 1;
            margin-right: 6px;
        }

        .nav-link.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--lime);
            color: #0A0D14;
            font-weight: 700;
            border-radius: 8px;
            border: 1px solid var(--lime);
            transition: all 0.22s ease;
            box-shadow: 0 0 0 rgba(198, 241, 53, 0);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #d8f75c;
            border-color: #d8f75c;
            color: #0A0D14;
            transform: translateY(-1px);
            box-shadow: 0 12px 28px rgba(198, 241, 53, 0.18);
        }

        .nav-cta i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }

        .nav-cta:hover i {
            transform: translateX(3px);
        }

        .nav-toggle {
            display: none;
            width: 46px;
            height: 46px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            background: var(--panel);
            color: var(--text);
            border-radius: 10px;
            font-size: 18px;
            cursor: pointer;
            transition: border-color 0.2s ease;
        }

        .nav-toggle:hover {
            border-color: rgba(198, 241, 53, 0.45);
        }

        .page-lead {
            position: relative;
            isolation: isolate;
            background-size: cover;
            background-position: center 20%;
            border-bottom: 1px solid var(--line);
        }

        .page-lead-veil {
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(180deg, rgba(10, 13, 20, 0.76) 0%, rgba(10, 13, 20, 0.94) 100%);
        }

        .page-lead-inner {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: flex-end;
            min-height: 214px;
            padding-top: 70px;
            padding-bottom: 40px;
        }

        .breadcrumbs {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 16px;
        }

        .breadcrumbs a {
            color: var(--muted);
            transition: color 0.2s ease;
        }

        .breadcrumbs a:hover {
            color: var(--lime);
        }

        .breadcrumbs i {
            font-size: 11px;
            color: var(--disable);
        }

        .breadcrumbs .cur {
            color: var(--body);
        }

        .lead-mini {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--lime);
            font-size: 13px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .lead-mini i {
            color: var(--ice);
        }

        .lead-title {
            font-size: clamp(28px, 4vw, 44px);
            line-height: 1.25;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.01em;
        }

        .lead-note {
            max-width: 560px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            margin-top: 10px;
        }

        .article-area {
            padding: 60px 0 80px;
            background:
                linear-gradient(180deg, rgba(198, 241, 53, 0.015) 0%, rgba(16, 20, 29, 0.1) 100%);
        }

        .article-wrap {
            position: relative;
        }

        .article-wrap::before {
            content: "";
            position: absolute;
            left: -26px;
            top: 8px;
            bottom: 60px;
            width: 2px;
            background: linear-gradient(180deg, var(--lime) 0%, rgba(198, 241, 53, 0.1) 100%);
            border-radius: 2px;
        }

        .article-kicker {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 14px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 6px 13px;
            background: rgba(94, 234, 212, 0.08);
            border: 1px solid rgba(94, 234, 212, 0.2);
            color: var(--ice);
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .chip i {
            font-size: 12px;
        }

        .article-position {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 13px;
        }

        .article-title {
            font-size: clamp(30px, 4.6vw, 52px);
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: 0.01em;
            color: var(--text);
            margin: 0 0 18px;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 22px;
            color: var(--muted);
            font-size: 14px;
            padding-bottom: 22px;
            border-bottom: 1px solid var(--line);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .meta-item i {
            color: var(--ice);
            font-size: 14px;
        }

        .article-body {
            padding-top: 28px;
        }

        .article-body > :first-child {
            margin-top: 0;
        }

        .article-body h2 {
            font-size: clamp(22px, 3vw, 30px);
            line-height: 1.4;
            color: var(--text);
            font-weight: 700;
            margin: 46px 0 16px;
            padding-left: 16px;
            border-left: 3px solid var(--lime);
        }

        .article-body h3 {
            font-size: 21px;
            color: var(--text);
            font-weight: 700;
            margin: 34px 0 12px;
        }

        .article-body p {
            margin: 16px 0;
            color: var(--body);
            font-size: 16px;
            line-height: 1.9;
        }

        .article-body a {
            color: var(--ice);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s ease;
        }

        .article-body a:hover {
            color: var(--lime);
        }

        .article-body strong {
            color: var(--text);
            font-weight: 700;
        }

        .article-body ul,
        .article-body ol {
            margin: 18px 0;
            padding-left: 6px;
        }

        .article-body ul li,
        .article-body ol li {
            position: relative;
            padding-left: 22px;
            margin: 8px 0;
            color: var(--body);
        }

        .article-body ul li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: 11px;
            width: 6px;
            height: 6px;
            border-radius: 2px;
            background: var(--lime);
        }

        .article-body ol {
            counter-reset: article-list;
        }

        .article-body ol li {
            counter-increment: article-list;
        }

        .article-body ol li::before {
            content: counter(article-list) ".";
            position: absolute;
            left: 2px;
            top: 0;
            font-weight: 700;
            color: var(--ice);
        }

        .article-body blockquote {
            margin: 30px 0;
            padding: 18px 20px 18px 24px;
            border-left: 3px solid var(--lime);
            background: rgba(198, 241, 53, 0.05);
            color: var(--body);
            border-radius: 0 12px 12px 0;
        }

        .article-body blockquote p {
            color: var(--text);
        }

        .article-body img {
            border-radius: 12px;
            margin: 26px 0;
            border: 1px solid var(--line);
        }

        .article-body table {
            display: block;
            width: 100%;
            border-collapse: collapse;
            overflow-x: auto;
            margin: 26px 0;
            font-size: 14px;
            -webkit-overflow-scrolling: touch;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--line);
            padding: 10px 14px;
            color: var(--body);
            background: var(--bg-2);
        }

        .article-body table th {
            background: var(--panel);
            color: var(--text);
            font-weight: 700;
        }

        .article-body code {
            display: inline-block;
            background: var(--panel);
            border: 1px solid var(--line);
            color: var(--lime);
            border-radius: 5px;
            padding: 2px 7px;
            font-family: Consolas, Monaco, monospace;
            font-size: 13px;
        }

        .article-body pre {
            border: 1px solid var(--line);
            background: #0B0F16;
            border-radius: 12px;
            padding: 18px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .article-body pre code {
            background: transparent;
            border: none;
            padding: 0;
            color: var(--text);
            font-size: 14px;
        }

        .article-doc-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px dashed rgba(255, 255, 255, 0.14);
        }

        .tag-line {
            display: inline-flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            color: var(--muted);
            font-size: 14px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--line);
            border-radius: 100px;
            font-size: 13px;
            color: var(--body);
            transition: all 0.2s ease;
        }

        .tag-chip:hover {
            border-color: rgba(198, 241, 53, 0.4);
            color: var(--lime);
        }

        .copy-link-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border: 1px solid var(--line-strong);
            border-radius: 8px;
            background: transparent;
            color: var(--body);
            font-size: 14px;
            cursor: pointer;
            transition: all 0.22s ease;
        }

        .copy-link-btn:hover {
            border-color: var(--lime);
            color: var(--lime);
            box-shadow: 0 0 20px rgba(198, 241, 53, 0.08);
        }

        .copy-link-btn i {
            color: var(--lime);
        }

        .copy-tip {
            font-size: 12px;
            color: var(--ice);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .copy-tip.show {
            opacity: 1;
        }

        .article-back-row {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            flex-wrap: wrap;
            gap: 14px;
            margin: 38px 0 10px;
            padding: 18px 0 0;
            border-top: 1px solid var(--line);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 48px;
            padding: 0 24px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 700;
            line-height: 1;
            cursor: pointer;
            transition: all 0.22s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--lime);
            border-color: var(--lime);
            color: #0A0D14;
        }

        .btn-primary:hover {
            background: #d8f75c;
            border-color: #d8f75c;
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(198, 241, 53, 0.18);
        }

        .btn-primary i {
            transition: transform 0.2s ease;
        }

        .btn-primary:hover i {
            transform: translateX(3px);
        }

        .btn-dark {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.16);
            color: var(--body);
        }

        .btn-dark:hover {
            border-color: var(--lime);
            color: var(--lime);
            transform: translateY(-2px);
        }

        .empty-unfound {
            max-width: 720px;
            margin: 20px auto 40px;
            text-align: center;
            background: var(--bg-2);
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 70px 32px;
            position: relative;
            overflow: hidden;
        }

        .empty-unfound::before {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--lime), transparent);
        }

        .empty-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 58px;
            height: 58px;
            border-radius: 16px 16px 16px 4px;
            background: rgba(198, 241, 53, 0.1);
            border: 1px solid rgba(198, 241, 53, 0.25);
            color: var(--lime);
            font-size: 24px;
            margin-bottom: 20px;
        }

        .empty-unfound h1 {
            font-size: clamp(28px, 4vw, 42px);
            color: var(--text);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .empty-unfound p {
            color: var(--muted);
            max-width: 420px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .rel-section {
            background: var(--bg-2);
            padding: 76px 0;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--lime);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
        }

        .section-eyebrow i {
            color: var(--ice);
        }

        .section-title {
            font-size: clamp(24px, 3.4vw, 36px);
            line-height: 1.3;
            color: var(--text);
            font-weight: 800;
            margin: 8px 0 0;
            letter-spacing: 0.01em;
        }

        .section-header p {
            max-width: 430px;
            color: var(--muted);
            font-size: 14px;
        }

        .rel-grid {
            row-gap: 0;
        }

        .rel-col {
            display: flex;
            margin-bottom: 24px;
        }

        .rel-card {
            width: 100%;
            display: flex;
            flex-direction: column;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            position: relative;
        }

        .rel-card:hover {
            transform: translateY(-6px);
            border-color: rgba(198, 241, 53, 0.22);
            box-shadow: var(--shadow);
        }

        .rel-card-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .rel-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

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

        .rel-card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 13, 20, 0) 55%, rgba(10, 13, 20, 0.65) 100%);
            pointer-events: none;
        }

        .rel-media-tag {
            position: absolute;
            left: 16px;
            top: 14px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 100px;
            background: rgba(10, 13, 20, 0.72);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--text);
            -webkit-backdrop-filter: blur(6px);
            backdrop-filter: blur(6px);
        }

        .rel-media-tag i {
            color: var(--lime);
            font-size: 11px;
        }

        .rel-card-body {
            padding: 26px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
            flex: 1;
        }

        .rel-num {
            font-size: 12px;
            letter-spacing: 0.12em;
            color: var(--ice);
            font-weight: 500;
        }

        .rel-title {
            font-size: 20px;
            line-height: 1.4;
            color: var(--text);
            font-weight: 700;
            margin: 0;
        }

        .rel-card-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 6px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--lime);
            font-weight: 700;
            font-size: 14px;
            transition: gap 0.2s ease;
            margin-top: auto;
        }

        .btn-text:hover {
            gap: 12px;
            color: #d8f75c;
        }

        .cta-block {
            position: relative;
            isolation: isolate;
            padding: 88px 0;
            background-size: cover;
            background-position: center;
        }

        .cta-veil {
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(90deg, rgba(10, 13, 20, 0.94) 0%, rgba(10, 13, 20, 0.78) 100%);
        }

        .cta-inner {
            max-width: 900px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            flex-wrap: wrap;
        }

        .cta-mini {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--lime);
            font-size: 13px;
            letter-spacing: 0.1em;
            margin-bottom: 8px;
        }

        .cta-inner h2 {
            font-size: clamp(24px, 3.2vw, 36px);
            color: var(--text);
            font-weight: 800;
            line-height: 1.35;
            margin: 0 0 8px;
        }

        .cta-inner p {
            color: var(--muted);
            font-size: 15px;
            max-width: 620px;
            line-height: 1.85;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }

        .site-footer {
            background: #080B10;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 70px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 0.9fr 1.2fr;
            gap: 48px;
            padding-bottom: 46px;
            border-bottom: 1px solid var(--line);
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-desc-line {
            max-width: 420px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.9;
            margin-top: 18px;
        }

        .footer-title {
            color: var(--text);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-links-column {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links-column a {
            color: var(--muted);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-links-column a:hover {
            color: var(--lime);
            padding-left: 4px;
        }

        .footer-contact-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-contact-list i {
            color: var(--ice);
            width: 20px;
            font-size: 13px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
            padding: 24px 0 30px;
            color: var(--disable);
            font-size: 13px;
        }

        .footer-safeinfo {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--disable);
            font-size: 13px;
        }

        .fade-up {
            opacity: 0;
            transform: translateY(14px);
        }

        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
            transition: opacity 0.45s ease, transform 0.45s ease;
        }

        @media (max-width: 1100px) {
            .nav-menu {
                gap: 22px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 980px) {
            .nav-toggle {
                display: inline-flex;
            }

            .nav-wrap {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 13, 20, 0.98);
                border-bottom: 1px solid rgba(198, 241, 53, 0.16);
                padding: 18px 24px 24px;
                flex-direction: column;
                align-items: stretch;
            }

            .nav-wrap.is-open {
                display: flex;
            }

            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                width: 100%;
            }

            .nav-link {
                height: auto;
                padding: 12px 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                display: flex;
                align-items: center;
                border-radius: 6px;
            }

            .nav-link::after,
            .nav-link::before {
                display: none;
            }

            .nav-link.active {
                background: rgba(198, 241, 53, 0.06);
            }

            .nav-cta {
                margin-top: 18px;
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 70px;
            }

            .brand-text {
                font-size: 19px;
            }

            .brand-badge {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .page-lead-inner {
                min-height: 180px;
                padding-top: 60px;
                padding-bottom: 30px;
            }

            .article-area {
                padding: 44px 0 60px;
            }

            .article-wrap::before {
                display: none;
            }

            .article-title {
                font-size: 32px;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .cta-block {
                padding: 64px 0;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn {
                flex: 1;
            }

            .rel-section {
                padding: 60px 0;
            }

            .section-header {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }

            .brand-text {
                font-size: 18px;
            }

            .brand-text span {
                display: none;
            }

            .lead-title {
                font-size: 28px;
            }

            .article-title {
                font-size: 26px;
            }

            .article-meta {
                gap: 10px 14px;
                font-size: 13px;
            }

            .article-body p {
                font-size: 15px;
            }

            .btn {
                width: 100%;
                padding: 0 16px;
            }

            .empty-unfound {
                padding: 48px 20px;
            }

            .rel-card-body {
                padding: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0A0D14;
            --bg-panel: #10141D;
            --bg-lift: #161C28;
            --acid: #C6F135;
            --ice: #5EEAD4;
            --text-hi: #F3F6FA;
            --text-body: #CDD5DF;
            --text-mute: #8A94A6;
            --text-dead: #556071;
            --border: rgba(255, 255, 255, 0.08);
            --border-bright: rgba(198, 241, 53, 0.32);
            --radius: 14px;
            --radius-sm: 8px;
            --space-section: 110px;
            --transition: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--bg-deep);
            color: var(--text-body);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul, ol, li {
            list-style: none;
        }

        h1, h2, h3, h4, h5 {
            color: var(--text-hi);
            font-weight: 700;
            margin: 0;
        }

        h1 {
            font-size: clamp(36px, 5vw, 52px);
            line-height: 1.2;
            letter-spacing: 0.01em;
        }

        h2 {
            font-size: clamp(26px, 3vw, 32px);
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        h3 {
            font-size: 19px;
            line-height: 1.5;
        }

        .container {
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        ::selection {
            background: rgba(198, 241, 53, 0.25);
            color: var(--text-hi);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(10, 13, 20, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .site-header::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, rgba(198, 241, 53, 0.25), rgba(198, 241, 53, 0.05) 40%, transparent 90%);
            pointer-events: none;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            min-height: 76px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(198, 241, 53, 0.12);
            border: 1px solid rgba(198, 241, 53, 0.35);
            color: var(--acid);
            font-size: 19px;
            line-height: 1;
            position: relative;
            box-shadow: 0 0 22px rgba(198, 241, 53, 0.12);
        }

        .brand-text {
            color: var(--text-hi);
            font-weight: 800;
            font-size: 21px;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .brand-text span {
            color: var(--acid);
            font-weight: 400;
            font-size: 15px;
            margin-left: 4px;
            letter-spacing: 0.06em;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 9px 13px;
            border-radius: 7px;
            font-size: 15px;
            color: var(--text-body);
            transition: color var(--transition), background var(--transition);
            white-space: nowrap;
        }

        .nav-link::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            margin-right: 7px;
            background: transparent;
            transition: background var(--transition), box-shadow var(--transition);
        }

        .nav-link:hover {
            color: var(--text-hi);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-link.active {
            color: var(--acid);
            background: rgba(198, 241, 53, 0.06);
        }

        .nav-link.active::before {
            background: var(--acid);
            box-shadow: 0 0 12px rgba(198, 241, 53, 0.8);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 13px;
            right: 13px;
            bottom: -18px;
            height: 2px;
            border-radius: 2px;
            background: var(--acid);
            box-shadow: 0 0 12px rgba(198, 241, 53, 0.55);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            background: var(--acid);
            color: #0A0D14;
            border-radius: 7px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            margin-left: 8px;
        }

        .nav-cta i {
            transition: transform var(--transition);
        }

        .nav-cta:hover {
            background: #D6F65A;
            box-shadow: 0 0 24px rgba(198, 241, 53, 0.14);
            transform: translateY(-1px);
        }

        .nav-cta:hover i {
            transform: translateX(4px);
        }

        .page-hero {
            position: relative;
            padding: 126px 0 96px;
            background:
                linear-gradient(180deg, rgba(10, 13, 20, 0.72), rgba(10, 13, 20, 0.96)),
                url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(198, 241, 53, 0.32), transparent);
        }

        .hero-eyebrow {
            display: flex;
            align-items: center;
            gap: 9px;
            color: var(--acid);
            font-size: 13px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            margin-bottom: 22px;
        }

        .eyebrow-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--acid);
            box-shadow: 0 0 12px rgba(198, 241, 53, 0.8);
        }

        .page-hero h1 {
            max-width: 920px;
            font-weight: 800;
            color: var(--text-hi);
        }

        .page-hero h1 .soft {
            color: var(--acid);
        }

        .hero-lead {
            max-width: 760px;
            margin-top: 22px;
            font-size: 17px;
            color: var(--text-mute);
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 32px;
        }

        .btn-main,
        .btn-line {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            min-height: 48px;
            padding: 0 24px;
            border-radius: 7px;
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .btn-main {
            background: var(--acid);
            color: #0A0D14;
            border: 1px solid var(--acid);
        }

        .btn-main:hover {
            background: #D9F85C;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(198, 241, 53, 0.1);
        }

        .btn-main i {
            transition: transform var(--transition);
        }

        .btn-main:hover i {
            transform: translateX(4px);
        }

        .btn-line {
            background: transparent;
            color: var(--text-hi);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .btn-line:hover {
            border-color: var(--acid);
            color: var(--acid);
            background: rgba(198, 241, 53, 0.06);
        }

        .guide-summary {
            padding-top: 84px;
            padding-bottom: 48px;
        }

        .summary-intro {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            margin-top: 32px;
        }

        .summary-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: border-color var(--transition), transform var(--transition), background var(--transition);
        }

        .summary-item:hover {
            border-color: rgba(198, 241, 53, 0.3);
            background: var(--bg-lift);
            transform: translateY(-3px);
        }

        .summary-item .sum-no {
            font-size: 13px;
            color: var(--acid);
            letter-spacing: 0.08em;
            font-weight: 600;
        }

        .summary-item h3 {
            font-size: 17px;
        }

        .summary-item p {
            color: var(--text-mute);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
        }

        .guide-layout-wrap {
            background: rgba(16, 20, 29, 0.35);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 96px 0 110px;
        }

        .guide-section-title {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            margin-bottom: 34px;
        }

        .guide-section-title .marker {
            color: var(--acid);
            font-size: 13px;
            letter-spacing: 0.12em;
            padding-top: 7px;
        }

        .side-directory {
            position: sticky;
            top: 100px;
            margin-top: 4px;
        }

        .side-directory-title {
            color: var(--text-mute);
            font-size: 13px;
            letter-spacing: 0.08em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .dir-link {
            display: flex;
            align-items: center;
            gap: 9px;
            padding: 10px 12px;
            border-left: 2px solid rgba(255, 255, 255, 0.1);
            font-size: 15px;
            color: var(--text-body);
            transition: color var(--transition), border-color var(--transition), background var(--transition);
        }

        .dir-link i {
            color: var(--text-dead);
            font-size: 12px;
            transition: color var(--transition), transform var(--transition);
        }

        .dir-link:hover,
        .dir-link.active {
            color: var(--acid);
            border-left-color: var(--acid);
            background: rgba(198, 241, 53, 0.04);
        }

        .dir-link:hover i {
            color: var(--acid);
            transform: translateX(3px);
        }

        .content-block {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 42px;
            margin-bottom: 24px;
            transition: border-color var(--transition);
        }

        .content-block:hover {
            border-color: rgba(255, 255, 255, 0.14);
        }

        .content-block .block-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--ice);
            font-size: 13px;
            letter-spacing: 0.08em;
            margin-bottom: 14px;
        }

        .content-block p {
            color: var(--text-body);
            margin-bottom: 16px;
        }

        .content-block p:last-child {
            margin-bottom: 0;
        }

        .spec-table {
            width: 100%;
            margin-top: 22px;
            border-collapse: collapse;
            font-size: 14px;
        }

        .spec-table th {
            text-align: left;
            color: var(--acid);
            font-weight: 600;
            background: rgba(198, 241, 53, 0.05);
            padding: 12px 14px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .spec-table td {
            padding: 13px 14px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-body);
            background: rgba(16, 20, 29, 0.4);
        }

        .spec-table td:first-child {
            color: var(--text-hi);
            font-weight: 600;
        }

        .check-list {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 13px;
        }

        .check-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text-body);
            font-size: 15px;
        }

        .check-list li i {
            color: var(--acid);
            margin-top: 5px;
            font-size: 13px;
        }

        .flow-number {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
        }

        .flow-step {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 17px 18px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.02);
            transition: transform var(--transition), border-color var(--transition);
        }

        .flow-step:hover {
            border-color: var(--border-bright);
            transform: translateX(4px);
        }

        .flow-step .step-num {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(198, 241, 53, 0.1);
            border: 1px solid rgba(198, 241, 53, 0.24);
            color: var(--acid);
            font-weight: 600;
            font-size: 13px;
        }

        .flow-step p {
            color: var(--text-mute);
            margin: 0;
        }

        .scenes-section {
            padding-top: 100px;
            padding-bottom: 20px;
        }

        .scenes-stack {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .scene-row {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            align-items: stretch;
            gap: 0;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-panel);
            transition: border-color var(--transition);
        }

        .scene-row:hover {
            border-color: rgba(198, 241, 53, 0.22);
        }

        .scene-row.reverse .scene-photo {
            order: 2;
        }

        .scene-photo {
            min-height: 280px;
            position: relative;
            background: center center / cover no-repeat var(--bg-lift);
        }

        .scene-photo::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(10, 13, 20, 0.6) 100%);
        }

        .scene-photo-1 {
            background-image: url("/assets/images/coverpic/cover-5.webp");
        }

        .scene-photo-2 {
            background-image: url("/assets/images/coverpic/cover-3.png");
        }

        .scene-info {
            padding: 42px 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .scene-info h3 {
            color: var(--text-hi);
            font-size: 24px;
            margin-bottom: 18px;
        }

        .scene-info p {
            color: var(--text-mute);
            line-height: 1.9;
            font-size: 15px;
            margin-bottom: 18px;
        }

        .scene-info ul li {
            display: flex;
            gap: 10px;
            color: var(--text-body);
            margin-bottom: 10px;
            font-size: 15px;
        }

        .scene-info ul li i {
            color: var(--ice);
            margin-top: 6px;
            font-size: 12px;
        }

        .faq-area {
            padding: 104px 0 108px;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: rgba(16, 20, 29, 0.25);
        }

        .custom-accordion {
            margin-top: 26px;
        }

        .custom-accordion .accordion-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition), background var(--transition);
        }

        .custom-accordion .accordion-item.is-active {
            border-color: var(--border-bright);
            background: rgba(16, 20, 29, 0.8);
        }

        .custom-accordion .accordion-title {
            background: transparent;
            color: var(--text-hi);
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            padding: 20px 52px 20px 24px;
            border: 0;
            transition: color var(--transition);
            position: relative;
        }

        .custom-accordion .accordion-title:hover,
        .custom-accordion .accordion-item.is-active .accordion-title {
            color: var(--acid);
        }

        .custom-accordion .accordion-title::after {
            content: "+";
            position: absolute;
            right: 22px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 24px;
            color: var(--acid);
            opacity: 0.7;
            line-height: 1;
            font-weight: 400;
            transition: transform var(--transition);
        }

        .custom-accordion .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(45deg);
        }

        .custom-accordion .accordion-content {
            background: transparent;
            color: var(--text-mute);
            border: 0;
            padding: 0 24px 22px;
            font-size: 15px;
            line-height: 1.9;
        }

        .cta-section {
            padding: 96px 0 104px;
        }

        .cta-box {
            background:
                linear-gradient(rgba(16, 20, 29, 0.94), rgba(10, 13, 20, 0.94)),
                url("/assets/images/coverpic/cover-8.png") center center / cover no-repeat;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 62px 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            transition: border-color var(--transition);
        }

        .cta-box:hover {
            border-color: var(--border-bright);
        }

        .cta-box h2 {
            font-size: clamp(24px, 3vw, 32px);
            line-height: 1.4;
        }

        .cta-box p {
            color: var(--text-mute);
            font-size: 15px;
            margin-top: 10px;
            max-width: 560px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            flex-shrink: 0;
        }

        .site-footer {
            border-top: 1px solid var(--border);
            background: #080B11;
            padding: 68px 0 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1.2fr;
            gap: 56px;
            padding-bottom: 46px;
        }

        .footer-brand .brand-text {
            font-size: 20px;
        }

        .footer-desc-line {
            margin-top: 20px;
            color: var(--text-mute);
            font-size: 14px;
            line-height: 1.9;
            max-width: 360px;
        }

        .footer-title {
            font-size: 15px;
            color: var(--text-hi);
            margin-bottom: 18px;
            font-weight: 600;
        }

        .footer-links-column {
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: flex-start;
        }

        .footer-links-column a {
            color: var(--text-mute);
            font-size: 14px;
            transition: color var(--transition), transform var(--transition);
        }

        .footer-links-column a:hover {
            color: var(--acid);
            transform: translateX(3px);
        }

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

        .footer-contact-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            color: var(--text-mute);
            font-size: 14px;
        }

        .footer-contact-list i {
            color: var(--ice);
            font-size: 14px;
            margin-top: 3px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-copy {
            color: var(--text-dead);
            font-size: 13px;
        }

        .footer-safeinfo {
            color: var(--text-dead);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .table-scroll {
            overflow-x: auto;
        }

        .mini-return {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
            margin-top: 28px;
            font-size: 15px;
            color: var(--text-mute);
        }

        .mini-return a {
            color: var(--acid);
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-weight: 500;
            transition: transform var(--transition);
        }

        .mini-return a:hover {
            transform: translateX(-3px);
        }

        :focus-visible {
            outline: 2px solid rgba(198, 241, 53, 0.55);
            outline-offset: 3px;
            border-radius: 4px;
        }

        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .summary-intro {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-info {
                padding: 30px;
            }
            .cta-box {
                padding: 44px 40px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 820px) {
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding-top: 12px;
                padding-bottom: 12px;
            }
            .nav-menu {
                width: 100%;
                overflow-x: auto;
                scrollbar-width: none;
                padding-bottom: 2px;
            }
            .nav-menu::-webkit-scrollbar {
                display: none;
            }
            .nav-link {
                flex-shrink: 0;
            }
            .nav-link.active::after {
                bottom: -14px;
            }
            .page-hero {
                padding: 68px 0 60px;
            }
            .summary-intro {
                grid-template-columns: 1fr;
            }
            .guide-layout-wrap {
                padding: 72px 0 84px;
            }
            .content-block {
                padding: 30px 24px;
            }
            .side-directory {
                position: static;
                margin-bottom: 24px;
            }
            .dir-links {
                display: flex;
                flex-wrap: wrap;
                gap: 6px;
            }
            .dir-link {
                border-left: 0;
                border: 1px solid var(--border);
                border-radius: 7px;
                padding: 8px 13px;
                font-size: 14px;
            }
            .dir-link i {
                display: none;
            }
            .scene-row,
            .scene-row.reverse .scene-photo {
                grid-template-columns: 1fr;
            }
            .scene-row {
                display: grid;
            }
            .scene-row.reverse .scene-photo {
                order: 0;
            }
            .scene-photo {
                min-height: 220px;
            }
            .cta-box {
                padding: 32px 26px;
            }
            .footer-main {
                grid-template-columns: 1fr;
            }
            .footer-desc-line {
                max-width: 100%;
            }
            :root {
                --space-section: 64px;
            }
        }

        @media (max-width: 560px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .page-hero {
                min-height: auto;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .hero-lead {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn-main,
            .hero-actions .btn-line {
                width: 100%;
            }
            .guide-section-title {
                flex-direction: column;
                gap: 8px;
            }
            .content-block {
                border-radius: 10px;
            }
            .spec-table,
            .spec-table th,
            .spec-table td {
                min-width: 480px;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn-main,
            .cta-actions .btn-line {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }