/* roulang page: index */
:root {
            --bg-deep: #060E18;
            --bg-navy: #0B1B2B;
            --accent: #19C8FF;
            --accent-soft: #7DD3FC;
            --accent-deep: #0E5A8A;
            --warn: #FFC53D;
            --text-main: #E6F1FF;
            --text-sub: #8AA3BF;
            --text-weak: #5A748F;
            --border-glass: rgba(255,255,255,0.08);
            --card-bg: rgba(255,255,255,0.04);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-full: 999px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --glow: 0 0 24px rgba(25,200,255,0.45);
            --glow-lg: 0 0 40px rgba(25,200,255,0.6);
            --transition: all 0.3s ease;
            --grad-btn: linear-gradient(135deg, #19C8FF, #0E5A8A);
        }
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            background: var(--bg-deep);
            color: var(--text-main);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; display: block; }
        button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
        ul, ol { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        a:focus-visible, button:focus-visible, summary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        ::selection { background: rgba(25,200,255,0.25); color: #fff; }

        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            background: rgba(6,14,24,0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(6,14,24,0.94); }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: #F0F7FF; letter-spacing: 0.5px; }
        .logo-dot {
            width: 10px; height: 10px; border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 14px var(--accent);
            animation: pulseDot 2s infinite ease-in-out;
        }
        @keyframes pulseDot { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.55; transform: scale(0.82); } }
        .main-nav { display: flex; align-items: center; gap: 34px; }
        .nav-link { font-size: 15px; font-weight: 500; color: var(--text-sub); position: relative; padding: 6px 2px; transition: var(--transition); }
        .nav-link:hover { color: #fff; }
        .nav-link.active { color: #fff; }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0; right: 0; bottom: -2px;
            height: 2px;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            border-radius: 2px;
        }
        .nav-cta {
            display: inline-flex; align-items: center; justify-content: center;
            height: 38px; padding: 0 22px;
            border-radius: var(--radius-full);
            font-size: 14px; font-weight: 700; color: #03101a;
            background: var(--grad-btn);
            box-shadow: var(--glow);
            transition: var(--transition);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: var(--glow-lg); color: #fff; }
        .menu-toggle {
            display: none; width: 42px; height: 42px;
            align-items: center; justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border-glass);
            background: rgba(255,255,255,0.04);
            flex-direction: column;
            gap: 5px;
        }
        .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition); }
        .menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .menu-toggle.open span:nth-child(2) { opacity: 0; }
        .menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
        @media (max-width: 920px) {
            .main-nav {
                position: fixed;
                top: 72px; left: 0; right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(6,14,24,0.97);
                backdrop-filter: blur(20px);
                padding: 24px 28px 32px;
                gap: 4px;
                transform: translateY(-130%);
                transition: transform 0.42s ease;
                border-bottom: 1px solid var(--border-glass);
                box-shadow: 0 30px 50px rgba(0,0,0,0.4);
            }
            .main-nav.open { transform: translateY(0); }
            .nav-link { font-size: 17px; padding: 12px 8px; border-radius: 10px; }
            .nav-link:hover { background: rgba(255,255,255,0.06); }
            .nav-link.active::after { display: none; }
            .nav-link.active { background: rgba(25,200,255,0.1); color: var(--accent); }
            .menu-toggle { display: flex; }
            .nav-cta { display: none; }
        }

        .btn-primary, .btn-ghost {
            display: inline-flex; align-items: center; justify-content: center;
            height: 48px; padding: 0 28px;
            border-radius: var(--radius-full);
            font-size: 15px; font-weight: 700;
            transition: var(--transition);
        }
        .btn-primary {
            color: #03101a;
            background: var(--grad-btn);
            box-shadow: var(--glow);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--glow-lg); color: #fff; }
        .btn-primary:active, .btn-ghost:active { transform: scale(0.95); }
        .btn-ghost {
            color: #E6F1FF;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.14);
            backdrop-filter: blur(10px);
        }
        .btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.26); color: #fff; }

        .section { padding: 96px 0; position: relative; }
        .section-tag {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 5px 16px; border-radius: var(--radius-full);
            font-size: 12px; font-weight: 700; letter-spacing: 1.5px;
            color: var(--accent-soft);
            background: rgba(25,200,255,0.08);
            border: 1px solid rgba(25,200,255,0.2);
        }
        .section-head { margin-bottom: 48px; max-width: 760px; }
        .section-head h2 { font-size: 34px; font-weight: 800; margin-top: 14px; line-height: 1.3; color: #F0F7FF; }
        .section-head p { margin-top: 10px; color: var(--text-sub); font-size: 15.5px; }

        .hero {
            min-height: 100vh;
            display: flex; align-items: center;
            padding: 120px 0 72px;
            position: relative;
            background:
                radial-gradient(circle at 85% 18%, rgba(25,200,255,0.14), transparent 58%),
                radial-gradient(circle at 4% 82%, rgba(38,120,180,0.12), transparent 48%),
                linear-gradient(180deg, #0B1B2B 0%, #060E18 100%);
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; height: 220px;
            background: radial-gradient(ellipse at 50% 0%, rgba(25,200,255,0.07), transparent 70%);
            pointer-events: none;
        }
        .hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 6px 18px; border-radius: var(--radius-full);
            font-size: 13px; font-weight: 700;
            color: var(--accent-soft);
            background: rgba(25,200,255,0.08);
            border: 1px solid rgba(25,200,255,0.18);
        }
        .hero-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
        .hero h1 { font-size: 46px; line-height: 1.25; font-weight: 800; margin-top: 22px; letter-spacing: 0.5px; color: #F0F7FF; }
        .hero-sub { font-size: 18px; color: var(--text-sub); margin-top: 16px; font-weight: 400; }
        .hero-actions { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
        .hero-card-media {
            position: relative; aspect-ratio: 9 / 16; max-width: 340px; width: 100%;
            margin-left: auto;
            border-radius: 20px; overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 40px rgba(25,200,255,0.06);
        }
        .hero-card-media img { width: 100%; height: 100%; object-fit: cover; }
        .hero-card-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0.08) 0%, transparent 45%, rgba(0,0,0,0.75) 100%); }
        .hero-card-tag {
            position: absolute; top: 14px; left: 14px;
            padding: 4px 12px; border-radius: var(--radius-full);
            font-size: 12px; font-weight: 700;
            color: #E6F1FF; background: rgba(6,14,24,0.68);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.16);
        }
        .hero-play {
            position: absolute; top: 46%; left: 50%; transform: translate(-50%, -50%);
            width: 58px; height: 58px; border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            color: #fff; font-size: 17px;
            background: rgba(6,14,24,0.55);
            border: 1px solid rgba(255,255,255,0.28);
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        .hero-play:hover { background: rgba(25,200,255,0.3); box-shadow: 0 0 32px rgba(25,200,255,0.45); transform: translate(-50%, -50%) scale(1.06); }
        .hero-views {
            position: absolute; bottom: 14px; right: 14px;
            padding: 4px 12px; border-radius: var(--radius-full);
            font-size: 12px; font-weight: 700;
            color: var(--warn); background: rgba(6,14,24,0.68);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.16);
        }
        @media (max-width: 1024px) {
            .hero-inner { gap: 40px; }
            .hero h1 { font-size: 38px; }
        }
        @media (max-width: 768px) {
            .section { padding: 64px 0; }
            .hero { padding: 104px 0 56px; }
            .hero-inner { grid-template-columns: 1fr; gap: 48px; }
            .hero-card-media { margin: 0 auto; max-width: 280px; }
            .hero h1 { font-size: 32px; }
            .section-head h2 { font-size: 26px; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 28px; }
            .hero-sub { font-size: 16px; }
            .btn-primary, .btn-ghost { width: 100%; }
        }

        .trend-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(12px);
            transition: var(--transition);
            position: relative;
        }
        .trend-card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.2); box-shadow: var(--shadow-card); }
        .trend-media { position: relative; aspect-ratio: 4 / 5; overflow: hidden; }
        .trend-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .trend-card:hover .trend-media img { transform: scale(1.05); }
        .hot-badge {
            position: absolute; top: 12px; left: 12px;
            padding: 3px 12px; border-radius: var(--radius-full);
            font-size: 12px; font-weight: 800;
            color: #1A1406; background: var(--warn);
            box-shadow: 0 2px 10px rgba(255,197,61,0.4);
        }
        .trend-buy {
            position: absolute; left: 0; right: 0; bottom: 0;
            padding: 13px 0; text-align: center;
            font-size: 14px; font-weight: 700; color: #03101a;
            background: rgba(25,200,255,0.9);
            backdrop-filter: blur(8px);
            transform: translateY(101%);
            transition: transform 0.35s ease;
        }
        .trend-card:hover .trend-buy { transform: translateY(0); }
        .trend-body { padding: 16px 18px 18px; }
        .trend-body h3 { font-size: 16px; font-weight: 700; color: #F0F7FF; line-height: 1.4; }
        .trend-body .trend-desc { font-size: 13px; color: var(--text-sub); margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .trend-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
        .trend-price { font-size: 20px; font-weight: 800; font-family: "Inter", "DIN Alternate", sans-serif; color: var(--warn); }
        .trend-link { font-size: 13px; font-weight: 600; color: var(--accent-soft); }
        .trend-link:hover { color: var(--accent); }
        .trend-rate { margin-top: 8px; font-size: 12px; color: var(--text-weak); letter-spacing: 1px; }
        .trend-rate::before { content: '★ '; color: var(--warn); }

        .plant-card {
            display: grid; grid-template-columns: 1fr 1.4fr;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-glass);
            border-radius: 18px;
            overflow: hidden;
            backdrop-filter: blur(14px);
            transition: var(--transition);
            position: relative;
        }
        .plant-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.18); box-shadow: var(--shadow-card); }
        .plant-media { position: relative; min-height: 220px; overflow: hidden; }
        .plant-media img { width: 100%; height: 100%; object-fit: cover; }
        .plant-num {
            position: absolute; top: 10px; left: 14px;
            font-size: 56px; font-weight: 800; line-height: 1;
            color: rgba(255,255,255,0.16);
            font-family: "Inter", "DIN Alternate", sans-serif;
            z-index: 2;
        }
        .plant-body { padding: 28px; display: flex; flex-direction: column; justify-content: center; }
        .plant-body h3 { font-size: 20px; font-weight: 700; color: #F0F7FF; }
        .plant-body .plant-desc { font-size: 14px; color: var(--text-sub); margin-top: 10px; line-height: 1.75; }
        .plant-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
        .plant-tag {
            padding: 3px 12px; border-radius: var(--radius-full);
            font-size: 12px; font-weight: 600;
            color: var(--accent-soft);
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(125,211,252,0.25);
        }
        .plant-link {
            display: inline-flex; align-items: center; gap: 6px;
            margin-top: 18px;
            font-size: 14px; font-weight: 700;
            color: var(--accent);
            transition: var(--transition);
        }
        .plant-link:hover { gap: 10px; text-shadow: 0 0 18px rgba(25,200,255,0.5); }
        @media (max-width: 768px) {
            .plant-card { grid-template-columns: 1fr; }
            .plant-media { min-height: 200px; max-height: 240px; }
            .plant-body { padding: 20px; }
        }

        .review-scroll {
            display: flex; gap: 16px; overflow-x: auto;
            padding-bottom: 18px;
            scrollbar-width: thin;
            scrollbar-color: rgba(25,200,255,0.2) transparent;
        }
        .review-scroll::-webkit-scrollbar { height: 5px; }
        .review-scroll::-webkit-scrollbar-track { background: transparent; }
        .review-scroll::-webkit-scrollbar-thumb { background: rgba(25,200,255,0.2); border-radius: 8px; }
        .review-card {
            min-width: 280px; max-width: 280px;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-glass);
            border-radius: 14px;
            padding: 18px;
            backdrop-filter: blur(12px);
            transition: var(--transition);
        }
        .review-card:hover { border-color: rgba(255,255,255,0.16); background: rgba(255,255,255,0.06); }
        .review-stars { color: var(--warn); font-size: 13px; letter-spacing: 2px; }
        .review-text { font-size: 14px; color: #D4E4F6; margin-top: 10px; line-height: 1.7; min-height: 54px; }
        .review-user { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
        .review-avatar {
            width: 34px; height: 34px; border-radius: 50%;
            background: linear-gradient(135deg, rgba(25,200,255,0.4), rgba(14,90,138,0.4));
            border: 1px solid rgba(255,255,255,0.18);
            display: flex; align-items: center; justify-content: center;
            font-size: 13px; font-weight: 700; color: #E6F1FF;
        }
        .review-name { font-size: 13px; font-weight: 600; color: #E6F1FF; }
        .review-source { font-size: 11px; color: var(--accent-soft); background: rgba(25,200,255,0.1); padding: 2px 8px; border-radius: 999px; }
        .stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 36px; }
        .stat-item { text-align: center; }
        .stat-item strong {
            display: block;
            font-size: 44px; font-weight: 800; line-height: 1.2;
            color: #F0F7FF;
            font-family: "Inter", "DIN Alternate", sans-serif;
            text-shadow: 0 0 30px rgba(25,200,255,0.25);
        }
        .stat-item span { display: block; font-size: 14px; color: var(--text-sub); margin-top: 6px; }

        .faq-item {
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(255,255,255,0.16); }
        .faq-item[open] { border-left: 2px solid var(--accent); background: rgba(255,255,255,0.05); }
        .faq-item summary {
            padding: 18px 22px;
            font-size: 15.5px; font-weight: 700;
            color: #E6F1FF;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: '+'; font-size: 20px; font-weight: 400; color: var(--accent); transition: transform 0.3s ease; }
        .faq-item[open] summary::after { transform: rotate(45deg); }
        .faq-answer { padding: 0 22px 18px; font-size: 14px; color: var(--text-sub); line-height: 1.8; }

        .cta-block {
            background:
                radial-gradient(circle at center, rgba(25,200,255,0.12) 0%, transparent 55%),
                linear-gradient(135deg, #0B1B2B 0%, #060E18 100%);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
            text-align: center;
            padding: 88px 24px;
        }
        .cta-block h2 { font-size: 36px; font-weight: 800; color: #F0F7FF; }
        .cta-block p { color: var(--text-sub); margin-top: 14px; font-size: 16px; }
        .cta-block .btn-primary { margin-top: 28px; height: 54px; padding: 0 44px; font-size: 16px; }
        @media (max-width: 768px) {
            .cta-block h2 { font-size: 26px; }
            .cta-block { padding: 56px 16px; }
        }

        .news-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: start; }
        .news-feature {
            display: flex; flex-direction: column;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-glass);
            border-radius: 18px;
            overflow: hidden;
            transition: var(--transition);
        }
        .news-feature:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.18); box-shadow: var(--shadow-card); }
        .news-feature-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
        .news-feature-media img { width: 100%; height: 100%; object-fit: cover; }
        .news-feature-media .badge {
            position: absolute; top: 12px; left: 12px;
            padding: 4px 12px; border-radius: var(--radius-full);
            font-size: 12px; font-weight: 700;
            color: #03101a; background: var(--accent);
        }
        .news-feature-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
        .news-feature-body h3 { font-size: 19px; font-weight: 700; color: #F0F7FF; line-height: 1.45; }
        .news-feature-body p { font-size: 14px; color: var(--text-sub); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
        .news-feature-meta { display: flex; align-items: center; gap: 12px; margin-top: auto; padding-top: 6px; }
        .news-feature-meta time { font-size: 13px; color: var(--text-weak); font-family: "Inter", "DIN Alternate", sans-serif; }
        .news-feature-meta .read-more { font-size: 13px; font-weight: 700; color: var(--accent); }
        .news-list { display: flex; flex-direction: column; }
        .news-item {
            display: flex; justify-content: space-between; align-items: center; gap: 16px;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .news-item:last-child { border-bottom: none; }
        .news-item:hover { padding-left: 8px; }
        .news-item h4 { font-size: 15px; font-weight: 700; color: #E6F1FF; line-height: 1.5; }
        .news-item h4:hover { color: var(--accent); }
        .news-item p { font-size: 13px; color: var(--text-sub); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
        .news-item-meta { display: flex; align-items: center; gap: 10px; margin-top: 6px; }
        .news-item-meta .badge-sm {
            padding: 2px 10px; border-radius: 999px;
            font-size: 11px; font-weight: 600;
            color: var(--accent-soft);
            background: rgba(25,200,255,0.08);
            border: 1px solid rgba(125,211,252,0.2);
        }
        .news-item-meta time { font-size: 12px; color: var(--text-weak); font-family: "Inter", "DIN Alternate", sans-serif; }
        .news-item-arrow { font-size: 16px; color: var(--text-weak); flex-shrink: 0; }
        .news-empty {
            grid-column: 1 / -1;
            padding: 56px 24px;
            text-align: center;
            background: rgba(255,255,255,0.03);
            border: 1px dashed var(--border-glass);
            border-radius: 18px;
        }
        .news-empty .empty-icon { font-size: 40px; color: var(--text-weak); margin-bottom: 12px; opacity: 0.6; }
        .news-empty p { color: var(--text-sub); font-size: 15px; }
        @media (max-width: 920px) {
            .news-grid { grid-template-columns: 1fr; }
        }

        .footer {
            background: #040B12;
            border-top: 1px solid rgba(255,255,255,0.05);
            padding: 64px 0 32px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
        .footer-brand .logo { margin-bottom: 14px; }
        .footer-brand p { font-size: 14px; color: var(--text-sub); max-width: 300px; }
        .footer-col h4 { font-size: 15px; font-weight: 700; color: #E6F1FF; margin-bottom: 18px; }
        .footer-links { display: flex; flex-direction: column; gap: 12px; }
        .footer-links a { font-size: 14px; color: var(--text-sub); }
        .footer-links a:hover { color: var(--accent); }
        .footer-contact { display: flex; flex-direction: column; gap: 10px; }
        .footer-contact li { font-size: 14px; color: var(--text-sub); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 24px;
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; gap: 12px;
            font-size: 13px; color: var(--text-weak);
        }
        .footer-bottom a { color: var(--text-sub); }
        .footer-bottom a:hover { color: var(--accent); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 36px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        .bg-glow-soft { position: relative; }
        .bg-glow-soft::before {
            content: '';
            position: absolute;
            top: 10%; left: 50%; transform: translateX(-50%);
            width: 600px; height: 400px;
            background: radial-gradient(circle, rgba(25,200,255,0.07), transparent 65%);
            pointer-events: none;
        }
        .bg-glow-left::after {
            content: '';
            position: absolute;
            bottom: 5%; left: -10%;
            width: 400px; height: 300px;
            background: radial-gradient(circle, rgba(25,200,255,0.05), transparent 70%);
            pointer-events: none;
        }

/* roulang page: article */
:root {
  --bg-page: #060E18;
  --bg-base: #0B1B2B;
  --bg-card: rgba(255, 255, 255, 0.05);
  --border-light: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.20);
  --accent: #19C8FF;
  --accent-deep: #0E5A8A;
  --ice: #7DD3FC;
  --warn: #FFC53D;
  --ink: #E6F1FF;
  --ink-sub: #8AA3BF;
  --ink-weak: #5A748F;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-full: 999px;
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(25, 200, 255, 0.45);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: Inter, "DIN Alternate", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

a:focus-visible,
button:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 820px;
}

/* ===== 导航 ===== */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 24px;
  background: rgba(6, 14, 24, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background .3s ease, box-shadow .3s ease;
}

.main-nav.scrolled {
  background: rgba(6, 14, 24, 0.95);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: .5px;
  color: var(--ink);
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-block;
  padding: 8px 18px;
  color: var(--ink-sub);
  font-size: 14px;
  border-radius: var(--radius-full);
  transition: color .2s ease, background .2s ease;
}

.nav-link:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(25, 200, 255, 0.12);
}

.nav-links .nav-cta {
  margin-left: 12px;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #ffffff;
  font-weight: 600;
  font-size: 14px;
  box-shadow: var(--shadow-glow);
  transition: box-shadow .3s ease, transform .2s ease;
}

.nav-links .nav-cta:hover {
  box-shadow: 0 0 40px rgba(25, 200, 255, 0.65);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 文章主体 ===== */
.article-main {
  position: relative;
  padding-top: 120px;
  background:
    radial-gradient(circle at top right, rgba(25, 200, 255, 0.10), transparent 50%),
    var(--bg-page);
  min-height: 80vh;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px 0 8px;
  font-size: 14px;
  color: var(--ink-weak);
}

.breadcrumb a {
  color: var(--ink-sub);
  transition: color .2s ease;
}

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

.breadcrumb .sep {
  color: var(--ink-weak);
  opacity: .6;
}

.breadcrumb .current {
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 420px;
}

.article-header {
  padding: 40px 0 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 36px;
}

.article-title {
  font-size: 40px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  color: var(--ink-sub);
  font-size: 14px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-icon {
  font-style: normal;
  opacity: .8;
}

/* ===== 正文区 ===== */
.article-body {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass);
  padding: 48px;
  color: var(--ink);
  font-size: 16px;
  line-height: 2;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 30px 0 12px;
  color: var(--ink);
}

.article-body p {
  margin-bottom: 22px;
}

.article-body img {
  border-radius: var(--radius-md);
  margin: 26px 0;
}

.article-body blockquote {
  border-left: 3px solid var(--accent);
  background: rgba(25, 200, 255, 0.06);
  padding: 16px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 26px 0;
  color: var(--ink-sub);
}

.article-body ul,
.article-body ol {
  padding-left: 22px;
  margin-bottom: 22px;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body a {
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}

.article-body a:hover {
  border-bottom-color: var(--accent);
}

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 64px 20px;
}

.empty-icon {
  font-size: 56px;
  margin-bottom: 16px;
  opacity: .7;
}

.empty-state h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
}

.empty-state p {
  color: var(--ink-sub);
  margin-bottom: 28px;
}

/* ===== 文末标签 / 分享 ===== */
.article-footer-panel {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px 0;
  margin-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  color: var(--ice);
  font-size: 13px;
}

.share-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-sub);
  font-size: 14px;
}

.share-btn {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--ink);
  font-size: 13px;
  transition: all .2s ease;
}

.share-btn:hover {
  background: rgba(25, 200, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 72px 0 32px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

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

.related-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.related-info {
  padding: 18px 20px 22px;
}

.related-info h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--ink);
}

.related-date {
  font-size: 13px;
  color: var(--ink-weak);
}

/* ===== 评论区占位 ===== */
.comments-section {
  padding: 40px 0 24px;
}

.comment-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.comment-box h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 18px;
}

.comment-input {
  width: 100%;
  min-height: 90px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  margin-bottom: 14px;
  transition: border-color .2s ease;
}

.comment-input::placeholder {
  color: var(--ink-weak);
}

.comment-input:focus {
  border-color: var(--accent);
}

.comment-submit {
  padding: 10px 26px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #ffffff;
  font-weight: 600;
  font-size: 14px;
  box-shadow: var(--shadow-glow);
  transition: box-shadow .3s ease, transform .2s ease;
}

.comment-submit:hover {
  box-shadow: 0 0 32px rgba(25, 200, 255, 0.6);
  transform: translateY(-1px);
}

.comment-submit:active {
  transform: scale(0.96);
}

/* ===== 返回入口 ===== */
.back-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  padding: 40px 0 72px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: all .25s ease;
}

.btn-lg {
  padding: 16px 42px;
  font-size: 16px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  box-shadow: 0 0 40px rgba(25, 200, 255, 0.65);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: scale(0.95);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--ink);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.30);
  transform: translateY(-1px);
}

.btn-outline:active {
  transform: scale(0.96);
}

/* ===== CTA 区 ===== */
.cta-section {
  position: relative;
  padding: 88px 24px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(25, 200, 255, 0.10), rgba(6, 14, 24, 0.78)),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.cta-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.cta-sub {
  color: var(--ink-sub);
  font-size: 16px;
  margin-bottom: 36px;
}

/* ===== 页脚 ===== */
.footer {
  background: #040B12;
  padding: 64px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--ink-sub);
  font-size: 14px;
  line-height: 1.7;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--ink);
}

.footer-links li,
.footer-contact li {
  margin-bottom: 10px;
}

.footer-links a,
.footer-contact a {
  color: var(--ink-sub);
  font-size: 14px;
  transition: color .2s ease;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  color: var(--ink-weak);
  font-size: 13px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav {
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(6, 14, 24, 0.97);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-110%);
    transition: transform .35s ease;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-link {
    width: 100%;
    padding: 12px 8px;
    font-size: 16px;
    border-radius: 8px;
  }

  .nav-links .nav-cta {
    width: 100%;
    margin: 8px 0 0;
    text-align: center;
  }

  .container {
    padding: 0 16px;
  }

  .article-main {
    padding-top: 100px;
  }

  .article-header {
    padding: 28px 0 24px;
    margin-bottom: 28px;
  }

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

  .article-meta {
    gap: 12px;
  }

  .article-body {
    padding: 28px 20px;
    line-height: 1.85;
  }

  .article-body h2 {
    font-size: 21px;
    margin: 32px 0 14px;
  }

  .article-body h3 {
    font-size: 18px;
  }

  .related-section {
    padding: 56px 0 24px;
  }

  .section-title {
    font-size: 22px;
    margin-bottom: 24px;
  }

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

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

  .back-links {
    padding: 32px 0 56px;
  }
}

@media (max-width: 640px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

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

  .share-row {
    width: 100%;
    flex-wrap: wrap;
  }

  .breadcrumb .current {
    max-width: 260px;
  }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --bg-primary: #060E18;
            --bg-secondary: #0B1B2B;
            --bg-footer: #040B12;
            --accent: #19C8FF;
            --accent-soft: #7DD3FC;
            --accent-deep: #0E5A8A;
            --warn: #FFC53D;
            --text-primary: #E6F1FF;
            --text-secondary: #8AA3BF;
            --text-muted: #5A748F;
            --border-light: rgba(255,255,255,0.08);
            --border-strong: rgba(255,255,255,0.18);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-full: 9999px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --glow-primary: 0 0 24px rgba(25,200,255,0.45);
            --glow-hover: 0 0 40px rgba(25,200,255,0.6);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* ========== Reset 基础 ========== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        ul, ol {
            list-style: none;
        }

        /* ========== 布局容器 ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 14, 24, 0.78);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(6, 14, 24, 0.94);
            border-bottom-color: rgba(255,255,255,0.12);
            box-shadow: 0 8px 30px rgba(0,0,0,0.35);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            flex-shrink: 0;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 14px rgba(25, 200, 255, 0.9);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color 0.2s, background 0.2s, box-shadow 0.2s;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.06);
        }
        .nav-link.active {
            color: var(--accent-soft);
            background: rgba(25, 200, 255, 0.1);
            box-shadow: inset 0 0 0 1px rgba(25, 200, 255, 0.2);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 20px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            box-shadow: 0 0 16px rgba(25, 200, 255, 0.35);
            margin-left: 8px;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
        }
        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 3px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 28px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-lg {
            height: 54px;
            padding: 0 40px;
            font-size: 16px;
        }
        .btn-primary {
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            color: #fff;
            box-shadow: var(--glow-primary);
        }
        .btn-primary:hover {
            box-shadow: var(--glow-hover);
            filter: brightness(1.12);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.96);
        }
        .btn-ghost {
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.35);
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ========== 页面首屏 ========== */
        .page-hero {
            position: relative;
            padding: 150px 0 88px;
            background: var(--bg-secondary);
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            pointer-events: none;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 78% 12%, rgba(25, 200, 255, 0.18), transparent 55%),
                radial-gradient(ellipse at 8% 88%, rgba(25, 200, 255, 0.08), transparent 45%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 28px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--accent-soft);
        }
        .breadcrumb-sep {
            opacity: 0.5;
        }
        .page-hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .page-hero .hero-subtitle {
            font-size: clamp(18px, 2.4vw, 24px);
            font-weight: 600;
            color: var(--accent-soft);
            margin-bottom: 16px;
        }
        .page-hero .hero-desc {
            max-width: 560px;
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ========== 图文交错 ========== */
        .story-block {
            padding: 88px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .story-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .story-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .story-media:hover img {
            transform: scale(1.04);
        }
        .story-content {
            padding: 20px 8px;
        }
        .story-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-soft);
            background: rgba(25, 200, 255, 0.1);
            border: 1px solid rgba(25, 200, 255, 0.25);
            margin-bottom: 16px;
        }
        .story-content h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .story-content p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--text-secondary);
        }

        /* ========== 品牌引言 ========== */
        .brand-quote {
            padding: 88px 0;
            text-align: center;
            background: var(--bg-primary);
        }
        .brand-quote blockquote {
            max-width: 680px;
            margin: 0 auto;
            padding: 0 24px;
            font-size: 24px;
            font-weight: 600;
            line-height: 1.6;
            color: var(--text-primary);
        }
        .brand-quote cite {
            display: block;
            margin-top: 20px;
            font-size: 14px;
            font-style: normal;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        /* ========== 数字指标 ========== */
        .metrics {
            padding: 80px 0;
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .metrics-heading {
            text-align: center;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 48px;
            color: var(--text-primary);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-item {
            padding: 32px 20px;
            text-align: center;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(10px);
            transition: transform 0.3s, border-color 0.3s;
        }
        .metric-item:hover {
            transform: translateY(-4px);
            border-color: rgba(25, 200, 255, 0.35);
        }
        .metric-num {
            display: block;
            font-family: Inter, "DIN Alternate", sans-serif;
            font-size: 44px;
            font-weight: 800;
            line-height: 1.1;
            color: var(--text-primary);
        }
        .metric-num i {
            font-style: normal;
            color: var(--accent);
            font-size: 24px;
            margin-left: 2px;
            vertical-align: top;
        }
        .metric-label {
            display: block;
            margin-top: 14px;
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ========== CTA 区块 ========== */
        .cta-section {
            padding: 88px 0;
        }
        .cta-card {
            position: relative;
            max-width: 860px;
            margin: 0 auto;
            padding: 56px 44px;
            text-align: center;
            border-radius: 24px;
            background: linear-gradient(135deg, rgba(25, 200, 255, 0.12), rgba(14, 90, 138, 0.18));
            border: 1px solid rgba(25, 200, 255, 0.22);
            overflow: hidden;
        }
        .cta-card::before {
            content: "";
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 72%;
            height: 200px;
            background: radial-gradient(closest-side, rgba(25, 200, 255, 0.28), transparent);
            pointer-events: none;
        }
        .cta-card h2 {
            position: relative;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .cta-card p {
            position: relative;
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .cta-card .btn {
            position: relative;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: var(--bg-footer);
            padding: 72px 0 32px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            font-size: 22px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.9;
        }
        .footer-col h4 {
            font-size: 15px;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--accent-soft);
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-contact li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .footer-contact a {
            color: var(--accent-soft);
            transition: color 0.2s;
        }
        .footer-contact a:hover {
            color: var(--text-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .story-grid {
                gap: 32px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                z-index: 99;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                padding: 20px 20px 30px;
                background: rgba(6, 14, 24, 0.98);
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 40px rgba(0,0,0,0.4);
                transform: translateY(-12px);
                opacity: 0;
                visibility: hidden;
                transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s;
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav .nav-link {
                font-size: 17px;
                padding: 14px 20px;
                border-radius: var(--radius-md);
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
            }
            body.menu-open {
                overflow: hidden;
            }

            .page-hero {
                padding: 120px 0 64px;
            }
            .story-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .story-media img {
                height: 260px;
            }
            .story-content {
                padding: 8px 0;
            }
            .brand-quote blockquote {
                font-size: 20px;
            }
            .cta-card {
                padding: 44px 24px;
            }
            .cta-card h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #19C8FF;
            --secondary: #7DD3FC;
            --warm: #FFC53D;
            --bg-deep: #060E18;
            --bg-panel: #0B1B2B;
            --text-main: #E6F1FF;
            --text-sub: #8AA3BF;
            --text-weak: #5A748F;
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --transition-base: all 0.3s ease;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "DIN Alternate", sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Main Navigation */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            height: 72px;
            background: rgba(6, 14, 24, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background 0.4s, box-shadow 0.4s;
        }
        .main-nav.scrolled {
            background: rgba(6, 14, 24, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
            border-bottom-color: rgba(255, 255, 255, 0.08);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            white-space: nowrap;
        }
        .logo-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(25, 200, 255, 0.8), 0 0 32px rgba(25, 200, 255, 0.4);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            padding: 6px 2px;
            transition: color 0.3s;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.3s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-main);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            color: #fff;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 0 20px rgba(25, 200, 255, 0.35);
            transition: all 0.3s;
            white-space: nowrap;
        }
        .nav-cta:hover {
            box-shadow: 0 0 32px rgba(25, 200, 255, 0.6);
            transform: translateY(-1px);
            color: #fff;
        }
        .nav-cta:active {
            transform: scale(0.96);
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-main);
            font-size: 20px;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            width: 100%;
            background: rgba(6, 14, 24, 0.98);
            backdrop-filter: blur(20px);
            padding: 24px 32px;
            z-index: 999;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 0;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-main);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        /* Hero */
        .page-hero {
            position: relative;
            padding: 168px 0 88px;
            overflow: hidden;
            background: var(--bg-deep);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 560px;
            height: 560px;
            background: radial-gradient(circle, rgba(25, 200, 255, 0.18), transparent 60%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(25, 200, 255, 0.1), transparent 60%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 56px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .page-hero h1 .grad-text {
            background: linear-gradient(120deg, #19C8FF, #7DD3FC);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero .subtitle {
            font-size: 18px;
            color: var(--text-sub);
            max-width: 540px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.04);
            font-size: 13px;
            color: var(--text-sub);
            backdrop-filter: blur(8px);
            transition: all 0.3s;
        }
        .tag-chip i {
            color: var(--primary);
        }
        /* FAQ Section */
        .faq-section {
            padding: 96px 0;
            background: var(--bg-deep);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .section-desc {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 48px;
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            backdrop-filter: blur(12px);
            transition: all 0.3s;
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.05);
        }
        .faq-item[open] {
            border-left: 2px solid var(--primary);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            color: var(--text-main);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(25, 200, 255, 0.1);
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s;
            font-size: 14px;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #060E18;
        }
        .faq-item .faq-answer {
            padding: 0 24px 24px 24px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.9;
        }
        .faq-item .faq-answer a {
            color: var(--primary);
            text-decoration: underline;
        }
        /* Contact CTA */
        .contact-section {
            padding: 96px 0 120px;
            position: relative;
        }
        .contact-card {
            max-width: 860px;
            margin: 0 auto;
            background: linear-gradient(135deg, rgba(11, 27, 43, 0.9), rgba(6, 14, 24, 0.95));
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 56px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .contact-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(25, 200, 255, 0.18), transparent 70%);
            pointer-events: none;
        }
        .contact-card h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
        }
        .contact-card p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 36px;
            position: relative;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .contact-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary {
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            color: #fff;
            box-shadow: 0 0 24px rgba(25, 200, 255, 0.45);
        }
        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(25, 200, 255, 0.7);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-main);
            backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            border-color: rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
            color: #fff;
        }
        .contact-info-row {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 40px;
            flex-wrap: wrap;
            position: relative;
        }
        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-sub);
        }
        .contact-info-item i {
            color: var(--primary);
            width: 20px;
            text-align: center;
        }
        /* CTA Banner */
        .cta-banner {
            padding: 40px 0;
            background: var(--bg-deep);
        }
        .cta-inner {
            background: linear-gradient(120deg, rgba(25, 200, 255, 0.12), rgba(14, 90, 138, 0.18));
            border: 1px solid rgba(25, 200, 255, 0.15);
            border-radius: 24px;
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-inner h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .cta-inner p {
            color: var(--text-sub);
            font-size: 15px;
        }
        /* Footer */
        .footer {
            background: #040B12;
            padding: 72px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-weak);
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-contact {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .footer-contact a {
            color: var(--text-weak);
            text-decoration: underline;
        }
        .footer-contact a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom span:last-child {
            color: var(--text-weak);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                padding: 0 24px;
            }
            .nav-links {
                gap: 24px;
            }
            .page-hero h1 {
                font-size: 44px;
            }
            .section-title {
                font-size: 34px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links,
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 140px 0 64px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .subtitle {
                font-size: 16px;
            }
            .section-title {
                font-size: 28px;
            }
            .section-desc {
                font-size: 15px;
                margin-bottom: 32px;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 18px;
                font-size: 14px;
            }
            .contact-card {
                padding: 36px 24px;
                border-radius: 16px;
            }
            .contact-card h2 {
                font-size: 24px;
            }
            .contact-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .cta-inner {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .hero-tags {
                flex-direction: column;
                align-items: flex-start;
            }
            .contact-info-row {
                flex-direction: column;
                gap: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg: #0B1B2B;
            --color-bg-deep: #060E18;
            --color-accent: #19C8FF;
            --color-accent-2: #7DD3FC;
            --color-warm: #FFC53D;
            --color-text: #E6F1FF;
            --color-text-sub: #8AA3BF;
            --color-text-weak: #5A748F;
            --color-card: rgba(255, 255, 255, .05);
            --color-border: rgba(255, 255, 255, .1);
            --color-border-light: rgba(255, 255, 255, .2);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-full: 999px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, .35);
            --glow-accent: 0 0 24px rgba(25, 200, 255, .45);
            --container-w: 1200px;
            --space-section: 96px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--color-bg-deep);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border: none;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            transition: all .3s ease;
        }
        .btn-primary {
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            color: #fff;
            box-shadow: 0 0 24px rgba(25, 200, 255, .45);
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 40px rgba(25, 200, 255, .7);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(.96);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(25, 200, 255, .5);
            outline-offset: 3px;
        }
        .btn-ghost {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            color: var(--color-text);
            backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            border-color: rgba(255, 255, 255, .24);
            background: rgba(255, 255, 255, .1);
        }
        .btn-ghost:focus-visible {
            outline: 3px solid rgba(125, 211, 252, .4);
            outline-offset: 2px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(6, 14, 24, .8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .05);
            transition: background .3s ease, border-color .3s ease;
        }
        .site-header.scrolled {
            background: rgba(6, 14, 24, .95);
            border-bottom-color: rgba(255, 255, 255, .08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: .5px;
        }
        .logo-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 12px rgba(25, 200, 255, .9);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-sub);
            border: 1px solid transparent;
            transition: color .2s, background .2s, border-color .2s;
        }
        .nav-link:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, .05);
        }
        .nav-link.active {
            color: var(--color-accent);
            background: rgba(25, 200, 255, .1);
            border-color: rgba(25, 200, 255, .25);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 0 16px rgba(25, 200, 255, .3);
            transition: box-shadow .2s, transform .2s;
        }
        .nav-cta:hover {
            box-shadow: 0 0 26px rgba(25, 200, 255, .55);
            transform: translateY(-1px);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, .12);
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            color: var(--color-text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: border-color .2s, background .2s;
        }
        .menu-toggle:hover {
            border-color: rgba(255, 255, 255, .3);
            background: rgba(255, 255, 255, .05);
        }
        .page-hero {
            position: relative;
            padding: 160px 0 80px;
            margin-top: -72px;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 14, 24, .55) 0%, rgba(6, 14, 24, .75) 60%, #060E18 100%);
        }
        .page-hero::after {
            content: "";
            position: absolute;
            top: -60px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(25, 200, 255, .18), transparent 60%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--color-text-sub);
            margin-bottom: 18px;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .hero-title {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 16px;
        }
        .hero-sub {
            font-size: 17px;
            color: var(--color-text-sub);
            max-width: 620px;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .section {
            padding: 88px 0;
        }
        .section-deep {
            background: var(--color-bg-deep);
        }
        .section-navy {
            background: var(--color-bg);
        }
        .section-head {
            max-width: 760px;
            margin-bottom: 44px;
        }
        .section-eyebrow {
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 12px;
        }
        .section-desc {
            color: var(--color-text-sub);
            font-size: 15px;
            margin: 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: center;
            backdrop-filter: blur(12px);
            transition: border-color .3s, transform .3s;
        }
        .stat-card:hover {
            border-color: rgba(25, 200, 255, .25);
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--color-text);
            font-family: Inter, "DIN Alternate", sans-serif;
            line-height: 1.2;
        }
        .stat-num span {
            color: var(--color-accent);
        }
        .stat-label {
            color: var(--color-text-sub);
            font-size: 14px;
            margin-top: 6px;
        }
        .goods-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .goods-card {
            position: relative;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(12px);
            transition: transform .3s, border-color .3s, box-shadow .3s;
        }
        .goods-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, .2);
            box-shadow: 0 14px 40px rgba(0, 0, 0, .35);
        }
        .goods-media {
            position: relative;
            aspect-ratio: 4 / 5;
            overflow: hidden;
        }
        .goods-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .goods-card:hover .goods-media img {
            transform: scale(1.05);
        }
        .goods-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-warm);
            color: #1a1403;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 12px rgba(255, 197, 61, .3);
        }
        .goods-body {
            padding: 18px;
        }
        .goods-title {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
        }
        .goods-desc {
            font-size: 13px;
            color: var(--color-text-sub);
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .goods-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }
        .goods-price {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-warm);
        }
        .goods-score {
            font-size: 12px;
            color: var(--color-text-sub);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .goods-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 5px 12px;
            border: 1px solid rgba(125, 211, 252, .3);
            border-radius: var(--radius-full);
            font-size: 12px;
            color: var(--color-accent-2);
            background: rgba(125, 211, 252, .06);
        }
        .goods-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            transition: gap .2s, color .2s;
        }
        .goods-link:hover {
            gap: 10px;
            color: #fff;
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            position: relative;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            overflow: hidden;
            transition: border-color .3s, transform .3s;
        }
        .process-step:hover {
            border-color: rgba(25, 200, 255, .3);
            transform: translateY(-3px);
        }
        .process-num {
            font-size: 52px;
            font-weight: 800;
            color: rgba(255, 255, 255, .08);
            line-height: 1;
            position: absolute;
            top: 14px;
            right: 16px;
            font-family: Inter, sans-serif;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 8px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--color-text-sub);
            margin: 0;
        }
        .reviews-strip {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding: 4px 4px 18px;
            scrollbar-width: thin;
            scrollbar-color: rgba(25, 200, 255, .3) transparent;
        }
        .reviews-strip::-webkit-scrollbar {
            height: 6px;
        }
        .reviews-strip::-webkit-scrollbar-thumb {
            background: rgba(25, 200, 255, .3);
            border-radius: var(--radius-full);
        }
        .review-card {
            flex: 0 0 280px;
            max-width: 280px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .09);
            border-radius: var(--radius-lg);
            padding: 20px;
            backdrop-filter: blur(12px);
            transition: border-color .3s;
        }
        .review-card:hover {
            border-color: rgba(255, 255, 255, .18);
        }
        .review-stars {
            color: var(--color-warm);
            font-size: 14px;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .review-text {
            font-size: 14px;
            color: var(--color-text);
            margin: 0 0 16px;
            line-height: 1.7;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, #19C8FF, #0E5A8A);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: #fff;
        }
        .review-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text);
        }
        .review-source {
            font-size: 11px;
            color: var(--color-accent);
            background: rgba(25, 200, 255, .12);
            border: 1px solid rgba(25, 200, 255, .2);
            padding: 2px 8px;
            border-radius: var(--radius-full);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guarantee-card {
            display: flex;
            gap: 16px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: border-color .3s, transform .3s;
        }
        .guarantee-card:hover {
            border-color: rgba(25, 200, 255, .25);
            transform: translateY(-3px);
        }
        .guarantee-icon {
            flex: 0 0 44px;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(25, 200, 255, .2), rgba(14, 90, 138, .2));
            border: 1px solid rgba(25, 200, 255, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 18px;
        }
        .guarantee-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 6px;
        }
        .guarantee-card p {
            font-size: 13px;
            color: var(--color-text-sub);
            margin: 0;
        }
        .cta-section {
            position: relative;
            padding: 88px 0;
            background: linear-gradient(135deg, #0B1B2B 0%, #0E5A8A 50%, #0B1B2B 100%);
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -140px;
            left: 50%;
            transform: translateX(-50%);
            width: 560px;
            height: 560px;
            background: radial-gradient(circle, rgba(25, 200, 255, .25), transparent 65%);
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-title {
            font-size: 36px;
            font-weight: 800;
            margin: 0 0 12px;
        }
        .cta-desc {
            color: var(--color-text-sub);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 15px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .footer {
            background: #040B12;
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.4fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            color: var(--color-text-sub);
            font-size: 14px;
            margin: 14px 0 0;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 14px;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 8px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--color-text-sub);
            transition: color .2s;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-contact li {
            font-size: 14px;
            color: var(--color-text-sub);
        }
        .footer-contact a {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-weak);
        }
        @media (max-width:1024px) {
            .goods-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-title {
                font-size: 38px;
            }
            .section {
                padding: 72px 0;
            }
        }
        @media (max-width:768px) {
            .menu-toggle {
                display: inline-flex;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                right: 0;
                width: 280px;
                height: calc(100vh - 72px);
                background: #060E18;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 8px;
                border-left: 1px solid rgba(255, 255, 255, .08);
                transform: translateX(100%);
                transition: transform .3s ease;
                box-shadow: -16px 0 40px rgba(0, 0, 0, .4);
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .nav-link {
                width: 100%;
            }
            .nav-cta {
                margin-top: 8px;
                width: 100%;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .stats-grid,
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 30px;
            }
            .page-hero {
                padding: 130px 0 56px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-title {
                font-size: 28px;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }
        @media (max-width:520px) {
            .container {
                padding: 0 16px;
            }
            .goods-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .hero-sub {
                font-size: 15px;
            }
            .stat-num {
                font-size: 34px;
            }
            .section-head {
                margin-bottom: 28px;
            }
            .process-step {
                padding: 22px 18px;
            }
            .cta-actions {
                flex-direction: column;
            }
        }