/* roulang page: index */
:root {
            --blue-950: #10233f;
            --blue-800: #184a82;
            --blue-700: #1769aa;
            --blue-600: #2185c5;
            --cyan: #41bfd0;
            --ink: #18283d;
            --muted: #6d7b8d;
            --soft: #f4f8fb;
            --paper: #ffffff;
            --line: #dce7ef;
            --gold: #f0b85b;
            --danger: #d96d72;
            --radius: 18px;
            --shadow: 0 16px 45px rgba(26, 64, 95, .10);
            --shadow-sm: 0 8px 24px rgba(26, 64, 95, .08);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--ink);
            background: var(--paper);
            line-height: 1.75;
            font-size: 15px;
        }
        a { color: inherit; text-decoration: none; }
        img { display: block; width: 100%; object-fit: cover; }
        button, input { font: inherit; }
        button { cursor: pointer; border: 0; }
        :focus-visible { outline: 3px solid rgba(33, 133, 197, .35); outline-offset: 3px; }

        .container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 20;
            background: rgba(255,255,255,.94);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(220,231,239,.88);
        }
        .nav-wrap { height: 76px; display: flex; align-items: center; gap: 38px; }
        .brand { display: inline-flex; align-items: center; gap: 11px; min-width: 245px; }
        .brand-mark {
            width: 39px; height: 39px; border-radius: 11px;
            display: grid; place-items: center;
            color: #fff; font-weight: 800; font-size: 14px;
            background: var(--blue-800);
            box-shadow: 0 7px 16px rgba(24,74,130,.24);
        }
        .brand-name { font-size: 16px; font-weight: 800; letter-spacing: .2px; }
        .brand-name span { color: var(--blue-700); }
        .nav-links { display: flex; align-items: center; gap: 25px; flex: 1; }
        .nav-links a { color: var(--muted); font-weight: 600; font-size: 14px; transition: color .2s ease; }
        .nav-links a:hover, .nav-links a.active { color: var(--blue-700); }
        .nav-action {
            padding: 10px 16px; border-radius: 10px;
            color: var(--blue-800) !important; background: #eaf5fb;
        }
        .menu-toggle { display: none; background: transparent; color: var(--blue-800); font-size: 25px; }

        .hero {
            min-height: 625px;
            position: relative;
            display: flex;
            align-items: center;
            overflow: hidden;
            color: #fff;
            background:
                linear-gradient(90deg, rgba(9,29,55,.9) 0%, rgba(15,52,85,.72) 45%, rgba(17,53,77,.28) 100%),
                url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=2000&q=88") center/cover;
        }
        .hero:after {
            content: "";
            position: absolute; inset: auto 0 0;
            height: 90px;
            background: linear-gradient(transparent, rgba(255,255,255,.08));
            pointer-events: none;
        }
        .hero-inner { position: relative; z-index: 1; padding: 92px 0 105px; }
        .eyebrow {
            display: inline-flex; align-items: center; gap: 8px;
            color: #bde9f1; font-weight: 700; font-size: 13px;
            letter-spacing: 1px; margin-bottom: 17px;
        }
        .eyebrow:before { content: ""; width: 25px; height: 2px; background: var(--cyan); }
        h1 { max-width: 700px; font-size: clamp(38px, 5vw, 64px); line-height: 1.16; letter-spacing: 0; }
        h1 em { color: #79d6e2; font-style: normal; }
        .hero-subtitle { margin-top: 20px; color: #e7f3f8; font-size: 18px; font-weight: 600; }
        .hero-copy { max-width: 690px; margin-top: 17px; color: #cbdde8; font-size: 16px; line-height: 1.9; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 31px; }
        .button {
            display: inline-flex; justify-content: center; align-items: center; gap: 8px;
            min-height: 46px; padding: 0 21px; border-radius: 10px;
            font-weight: 750; transition: transform .2s, box-shadow .2s, background .2s;
        }
        .button:hover { transform: translateY(-2px); box-shadow: 0 9px 20px rgba(7,31,55,.18); }
        .button-primary { color: #fff; background: var(--blue-600); }
        .button-primary:hover { background: #2c96d0; }
        .button-light { color: var(--blue-950); background: #fff; }
        .button-outline { color: #e8f7fb; border: 1px solid rgba(255,255,255,.46); background: rgba(255,255,255,.08); }
        .hero-note { display: flex; gap: 24px; margin-top: 32px; color: #c9e0eb; font-size: 13px; }
        .hero-note strong { color: #fff; display: block; font-size: 19px; line-height: 1.25; }

        main { overflow: hidden; }
        section { padding: 92px 0; }
        .section-soft { background: var(--soft); }
        .section-dark { color: #fff; background: var(--blue-950); }
        .section-head { display: flex; justify-content: space-between; align-items: end; gap: 25px; margin-bottom: 31px; }
        .section-kicker { color: var(--blue-600); font-weight: 800; font-size: 13px; letter-spacing: 1px; margin-bottom: 7px; }
        .section-dark .section-kicker { color: #74d3df; }
        h2 { font-size: clamp(27px, 3.2vw, 39px); line-height: 1.3; letter-spacing: 0; }
        .section-intro { max-width: 620px; color: var(--muted); line-height: 1.85; }
        .section-dark .section-intro { color: #b9cddd; }
        .text-link { color: var(--blue-700); font-weight: 750; white-space: nowrap; }
        .text-link:hover { color: var(--blue-600); }

        .trust-strip { padding: 22px 0; background: #fff; border-bottom: 1px solid var(--line); }
        .trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .trust-item { display: flex; align-items: center; gap: 13px; }
        .trust-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; color: var(--blue-700); background: #e8f5fb; font-weight: 800; }
        .trust-item strong { display: block; font-size: 14px; }
        .trust-item span { display: block; color: var(--muted); font-size: 12px; }

        .content-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .video-card {
            overflow: hidden; background: #fff; border: 1px solid var(--line);
            border-radius: var(--radius); box-shadow: var(--shadow-sm);
            transition: transform .25s, box-shadow .25s;
        }
        .video-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
        .cover { aspect-ratio: 16 / 10; position: relative; overflow: hidden; background: #dbe8ef; }
        .cover img { height: 100%; transition: transform .45s; }
        .video-card:hover .cover img { transform: scale(1.05); }
        .cover:after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 52%, rgba(4,25,44,.57)); }
        .quality {
            position: absolute; z-index: 1; left: 11px; top: 11px;
            padding: 3px 8px; border-radius: 5px; color: #fff;
            background: var(--blue-700); font-size: 11px; font-weight: 800;
        }
        .play {
            position: absolute; z-index: 2; right: 12px; bottom: 10px;
            width: 31px; height: 31px; display: grid; place-items: center;
            border-radius: 50%; color: #fff; background: rgba(255,255,255,.2);
            border: 1px solid rgba(255,255,255,.45);
        }
        .card-body { padding: 15px 16px 17px; }
        .card-title { font-weight: 750; line-height: 1.45; min-height: 43px; }
        .card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 11px; color: var(--muted); font-size: 12px; }
        .rating { color: #d89531; font-weight: 800; }
        .rating span { color: var(--muted); font-weight: 500; margin-left: 3px; }

        .audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
        .audience-card { padding: 31px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
        .audience-card.muted { background: #f8fafb; }
        .audience-card h3 { font-size: 21px; margin-bottom: 10px; }
        .audience-card p { color: var(--muted); line-height: 1.85; }
        .audience-card ul { list-style: none; margin-top: 18px; display: grid; gap: 10px; }
        .audience-card li { color: var(--ink); font-size: 14px; }
        .audience-card li:before { content: "✓"; color: var(--blue-600); margin-right: 9px; font-weight: 800; }
        .audience-card.muted li:before { content: "×"; color: var(--danger); }

        .category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
        .category-card { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border .2s, transform .2s; }
        .category-card:hover { border-color: var(--blue-600); transform: translateY(-3px); }
        .category-number { color: var(--blue-600); font-weight: 850; font-size: 13px; }
        .category-card h3 { margin: 10px 0 8px; font-size: 19px; }
        .category-card p { color: var(--muted); font-size: 14px; line-height: 1.8; }

        .feature-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: center; }
        .feature-list { display: grid; gap: 13px; margin-top: 22px; }
        .feature-list li { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); list-style: none; }
        .feature-list b { color: var(--blue-700); font-size: 19px; }
        .feature-list strong { display: block; margin-bottom: 3px; }
        .feature-list span { color: var(--muted); font-size: 14px; }
        .feature-visual { min-height: 360px; position: relative; border-radius: 22px; overflow: hidden; background: #12395e; box-shadow: var(--shadow); }
        .feature-visual img { height: 100%; min-height: 360px; opacity: .8; }
        .visual-caption { position: absolute; left: 25px; right: 25px; bottom: 22px; color: #fff; }
        .visual-caption strong { display: block; font-size: 23px; }
        .visual-caption span { color: #d2e5ef; font-size: 13px; }

        .route-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
        .route-card { min-height: 190px; padding: 27px; border-radius: var(--radius); background: #edf7fb; border: 1px solid #d6ebf2; }
        .route-card strong { display: block; margin: 20px 0 7px; font-size: 19px; }
        .route-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
        .route-arrow { color: var(--blue-700); font-size: 24px; }

        .ranking-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 45px; }
        .rank-list { display: grid; gap: 0; }
        .rank-row { display: grid; grid-template-columns: 37px 1fr auto auto; align-items: center; gap: 14px; padding: 15px 0; border-bottom: 1px solid rgba(220,231,239,.18); }
        .rank-no { color: #7cd8e4; font-weight: 850; font-size: 18px; }
        .rank-name { font-weight: 700; }
        .rank-tag { padding: 3px 8px; border-radius: 5px; color: #bde9f1; background: rgba(65,191,208,.12); font-size: 11px; }
        .rank-hot { color: #f7c970; font-size: 13px; }

        .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .news-card { display: grid; grid-template-columns: 112px 1fr; gap: 16px; padding: 13px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
        .news-card img { height: 86px; border-radius: 10px; }
        .news-card h3 { font-size: 15px; line-height: 1.5; }
        .news-card time { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; }

        .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 19px; }
        .quote { padding: 26px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
        .quote p { color: #42566a; line-height: 1.85; }
        .quote footer { margin-top: 18px; color: var(--blue-700); font-size: 13px; font-weight: 750; }

        .security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .security-card { padding: 24px; border-left: 3px solid var(--cyan); background: #f7fbfd; }
        .security-card h3 { margin-bottom: 7px; font-size: 17px; }
        .security-card p { color: var(--muted); font-size: 14px; line-height: 1.8; }

        .faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 12px; }
        details { padding: 20px 23px; background: #fff; border: 1px solid var(--line); border-radius: 13px; }
        summary { cursor: pointer; font-weight: 750; color: var(--ink); }
        details p { color: var(--muted); line-height: 1.85; margin-top: 12px; padding-right: 25px; }

        .final-cta { padding: 72px 0; color: #fff; background: var(--blue-800); }
        .cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 28px; }
        .cta-inner h2 { max-width: 650px; }
        .cta-inner p { margin-top: 9px; color: #cce2ed; }
        .footer { padding: 62px 0 25px; background: #0e1c30; color: #b8c8d5; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
        .footer .brand-name { color: #fff; }
        .footer .brand-name span { color: #72d4df; }
        .footer-about { margin-top: 16px; max-width: 300px; color: #8195a7; font-size: 13px; line-height: 1.9; }
        .footer h3 { margin-bottom: 15px; color: #fff; font-size: 14px; }
        .footer-links { display: grid; gap: 8px; font-size: 13px; }
        .footer-links a:hover { color: #75d4df; }
        .copyright { margin-top: 45px; padding-top: 19px; border-top: 1px solid rgba(255,255,255,.12); color: #71869a; font-size: 12px; }

        @media (max-width: 1024px) {
            .content-grid { grid-template-columns: repeat(3, 1fr); }
            .nav-wrap { gap: 20px; }
            .brand { min-width: 205px; }
            .nav-links { gap: 15px; }
            .feature-layout { gap: 30px; }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 32px, 640px); }
            .nav-wrap { height: 68px; }
            .menu-toggle { display: block; margin-left: auto; }
            .nav-links {
                display: none; position: absolute; top: 68px; left: 0; right: 0;
                padding: 18px 20px; background: #fff; border-bottom: 1px solid var(--line);
                box-shadow: var(--shadow-sm); flex-direction: column; align-items: stretch; gap: 0;
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 12px 0; border-bottom: 1px solid #eef3f6; }
            .nav-action { text-align: center; margin-top: 8px; }
            .hero { min-height: 610px; }
            .hero-inner { padding: 72px 0 86px; }
            section { padding: 67px 0; }
            .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
            .content-grid { grid-template-columns: repeat(2, 1fr); }
            .category-grid, .route-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-layout, .ranking-layout { grid-template-columns: 1fr; }
            .feature-visual { min-height: 290px; }
            .feature-visual img { min-height: 290px; }
            .quote-grid, .security-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
            .footer-grid > :last-child { grid-column: 2 / 4; }
        }
        @media (max-width: 520px) {
            body { font-size: 14px; }
            .container { width: calc(100% - 28px); }
            .brand { min-width: 0; }
            .brand-name { font-size: 14px; }
            .hero { min-height: 650px; }
            h1 { font-size: 39px; }
            .hero-subtitle { font-size: 16px; }
            .hero-copy { font-size: 14px; line-height: 1.8; }
            .hero-actions .button { width: 100%; }
            .hero-note { gap: 16px; }
            .section-head { display: block; }
            .section-head .text-link { display: inline-block; margin-top: 13px; }
            .trust-grid, .content-grid, .category-grid, .route-grid, .news-grid { grid-template-columns: 1fr; }
            .audience-grid { grid-template-columns: 1fr; }
            .audience-card { padding: 23px; }
            .rank-row { grid-template-columns: 30px 1fr auto; gap: 8px; }
            .rank-tag { display: none; }
            .cta-inner { display: block; }
            .cta-inner .button { margin-top: 22px; width: 100%; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px 20px; }
            .footer-grid > :last-child { grid-column: auto; }
            .footer-about { max-width: none; }
        }

/* roulang page: category1 */
:root{
 --blue-950:#10233f;--blue-800:#184a82;--blue-700:#1769aa;--blue-600:#2185c5;
 --cyan:#41bfd0;--ink:#18283d;--muted:#6d7b8d;--soft:#f4f8fb;--paper:#fff;
 --line:#dce7ef;--gold:#f0b85b;--danger:#d96d72;--radius:18px;
 --shadow:0 16px 45px rgba(26,64,95,.10);--shadow-sm:0 8px 24px rgba(26,64,95,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,231,239,.88)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:38px}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:245px}
.brand-mark{width:39px;height:39px;border-radius:11px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px;background:var(--blue-800);box-shadow:0 7px 16px rgba(24,74,130,.24)}
.brand-name{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-name span{color:var(--blue-700)}
.nav-links{display:flex;align-items:center;gap:25px;flex:1}
.nav-links a{color:var(--muted);font-weight:600;font-size:14px;transition:color .2s ease}
.nav-links a:hover,.nav-links a.active{color:var(--blue-700)}
.nav-action{padding:10px 16px;border-radius:10px;color:var(--blue-800)!important;background:#eaf5fb}
.menu-toggle{display:none;background:transparent;color:var(--blue-800);font-size:25px}
.hero{min-height:535px;position:relative;display:flex;align-items:center;overflow:hidden;color:#fff;background:linear-gradient(90deg,rgba(9,29,55,.92),rgba(15,52,85,.72) 48%,rgba(17,53,77,.28)),url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=2000&q=88") center/cover}
.hero:after{content:"";position:absolute;inset:auto 0 0;height:85px;background:linear-gradient(transparent,rgba(255,255,255,.08));pointer-events:none}
.hero-inner{position:relative;z-index:1;padding:86px 0 92px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bde9f1;font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:17px}
.eyebrow:before{content:"";width:25px;height:2px;background:var(--cyan)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5vw,66px);line-height:1.14;letter-spacing:0;font-weight:850;margin-bottom:18px;max-width:710px}
h1 em{font-style:normal;color:#73d5df}
.hero-subtitle{margin-top:20px;color:#e7f3f8;font-size:18px;font-weight:600}
.hero-copy{max-width:680px;margin-top:17px;color:#cbdde8;font-size:16px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:31px}
.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:0 21px;border-radius:10px;font-weight:750;transition:transform .2s,box-shadow .2s,background .2s}
.button:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(7,31,55,.18)}
.button:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(65,191,208,.45);outline-offset:3px}
.button-primary{color:#fff;background:var(--blue-600)}
.button-primary:hover{background:#2c96d0}
.button-light{color:var(--blue-950);background:#fff}
.button-outline{color:#e8f7fb;border:1px solid rgba(255,255,255,.46);background:rgba(255,255,255,.08)}
.hero-note{display:flex;gap:26px;margin-top:32px;color:#c9e0eb;font-size:13px}
.hero-note strong{color:#fff;display:block;font-size:19px;line-height:1.25}
.hero-timer{position:absolute;right:0;bottom:56px;z-index:2;background:rgba(16,35,63,.82);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:15px 18px;min-width:218px;box-shadow:var(--shadow)}
.hero-timer small{display:block;color:#bde9f1;font-size:12px;margin-bottom:3px}
.hero-timer strong{font-size:19px;letter-spacing:1px}
main{overflow:hidden}
section{padding:86px 0}
.section-soft{background:var(--soft)}
.section-dark{color:#fff;background:var(--blue-950)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:31px}
.section-kicker{color:var(--blue-600);font-weight:800;font-size:13px;letter-spacing:1px;margin-bottom:7px}
.section-dark .section-kicker{color:#74d3df}
.section-head h2{font-size:31px;line-height:1.25;margin:0}
.section-intro{max-width:620px;color:var(--muted);line-height:1.85}
.section-dark .section-intro{color:#b9cddd}
.text-link{color:var(--blue-700);font-weight:750;white-space:nowrap}
.text-link:hover{color:var(--blue-600)}
.stats-band{padding:29px 0;background:#fff;border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust-item{display:flex;align-items:center;gap:13px}
.trust-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;color:var(--blue-700);background:#eaf5fb;font-weight:800}
.trust-item strong{display:block;font-size:14px}
.trust-item span{display:block;color:var(--muted);font-size:12px}
.content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.cover{height:224px;position:relative;overflow:hidden;background:#dce7ef}
.cover img{height:100%;transition:transform .45s}
.video-card:hover .cover img{transform:scale(1.05)}
.badges{position:absolute;top:12px;left:12px;display:flex;gap:6px;flex-wrap:wrap}
.badge{padding:4px 8px;border-radius:7px;color:#fff;background:rgba(16,35,63,.78);font-size:11px;font-weight:750}
.badge.gold{color:#51350e;background:var(--gold)}
.card-body{padding:15px 16px 17px}
.card-title{font-weight:750;line-height:1.45;min-height:43px}
.card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:11px;color:var(--muted);font-size:12px}
.rating{color:#b77a19;font-weight:800}
.feature-grid{display:grid;grid-template-columns:1.16fr .84fr;gap:24px;align-items:stretch}
.feature-panel{min-height:330px;border-radius:var(--radius);overflow:hidden;position:relative;color:#fff;background:linear-gradient(90deg,rgba(12,37,64,.86),rgba(12,37,64,.2)),url("https://images.unsplash.com/photo-1517604931442-7e0c8ed2963c?auto=format&fit=crop&w=1200&q=85") center/cover;padding:34px}
.feature-panel h3{font-size:29px;max-width:360px;line-height:1.35;margin-bottom:12px}
.feature-panel p{max-width:410px;color:#d7e9f0}
.feature-tag{display:inline-block;color:#d8f7f8;background:rgba(65,191,208,.18);border:1px solid rgba(130,225,232,.38);padding:5px 10px;border-radius:7px;font-size:12px;margin-bottom:18px}
.score-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.score-panel h3{font-size:22px;margin-bottom:22px}
.score-row{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.score-row:last-child{border-bottom:0}
.score-cover{width:70px;height:52px;border-radius:9px;overflow:hidden;flex:none}
.score-cover img{height:100%}
.score-info{flex:1;min-width:0}
.score-info strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.score-info span{color:var(--muted);font-size:12px}
.score-value{color:var(--blue-700);font-size:18px;font-weight:800}
.channel-layout{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:background .2s,transform .2s}
.channel-card:hover{background:#f7fcfe;transform:translateY(-3px)}
.channel-no{color:var(--cyan);font-size:13px;font-weight:800}
.channel-card h3{font-size:19px;margin:10px 0 7px}
.channel-card p{color:var(--muted);font-size:13px;line-height:1.8;margin-bottom:0}
.rank-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:25px}
.rank-list{background:#fff;border-radius:var(--radius);overflow:hidden;color:var(--ink)}
.rank-item{display:grid;grid-template-columns:46px 1fr 84px 64px;align-items:center;gap:12px;padding:16px 22px;border-bottom:1px solid var(--line)}
.rank-item:last-child{border-bottom:0}
.rank-number{font-size:24px;font-weight:850;color:#a5b6c2}
.rank-item:nth-child(-n+3) .rank-number{color:var(--blue-600)}
.rank-name{font-weight:750}
.rank-name small{display:block;color:var(--muted);font-size:12px;font-weight:400}
.rank-hot{color:var(--danger);font-size:12px}
.rank-score{color:#b77a19;font-weight:800}
.rank-aside{padding:30px;border-radius:var(--radius);background:#174b78;color:#fff}
.rank-aside h3{font-size:25px;line-height:1.35}
.rank-aside p{color:#c6deeb}
.rank-aside ul{padding:0;margin:22px 0 0;list-style:none}
.rank-aside li{padding:11px 0;border-bottom:1px solid rgba(255,255,255,.15);color:#d3e7ef;font-size:13px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{display:grid;grid-template-columns:112px 1fr;gap:15px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:box-shadow .2s,transform .2s}
.news-card:hover{transform :translateY(-3px);box-shadow:var(--shadow-sm)}
.news-thumb{height:86px;border-radius:9px;overflow:hidden}
.news-thumb img{height:100%}
.news-card h3{font-size:15px;line-height:1.5;margin:2px 0 7px}
.news-card time{color:var(--muted);font-size:12px}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:38px;align-items:start}
.faq-intro h2{font-size:30px;line-height:1.35}
.faq-intro p{color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;padding:20px 0;background:transparent;text-align:left;color:var(--ink);font-weight:750}
.faq-question span:last-child{color:var(--blue-600);font-size:22px;line-height:1;transition:transform .2s}
.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.security-bar{padding:25px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;border:1px solid #bcdce8;border-radius:var(--radius);background:#edf9fb}
.security-bar strong{display:block;font-size:17px}
.security-bar p{color:var(--muted);margin:4px 0 0;font-size:13px}
.footer{padding:61px 0 27px;color:#c6d5e2;background:var(--blue-950)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px}
.footer .brand{color:#fff;margin-bottom:16px}
.footer-about{max-width:300px;color:#aebfd0;font-size:13px;line-height:1.8}
.footer h3{margin:4px 0 17px;color:#fff;font-size:14px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#aebfd0;font-size:13px;transition:color .2s}
.footer-links a:hover{color:#74d3df}
.copyright{margin-top:43px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#91a7ba;font-size:12px}
@media (max-width:1024px){
 .nav-wrap{gap:18px}.brand{min-width:220px}.nav-links{gap:15px}
 .content-grid{grid-template-columns:repeat(3,1fr)}.trust-grid{grid-template-columns:repeat(2,1fr)}
 .feature-grid,.rank-layout{grid-template-columns:1fr}.rank-aside{display:none}
}
@media (max-width:768px){
 .container{width:min(100% - 30px,600px)}section{padding:64px 0}
 .nav-wrap{height:68px;justify-content:space-between}.menu-toggle{display:block}
 .nav-links{display:none;position:absolute;top:68px;left:15px;right:15px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
 .nav-links.open{display:flex}.nav-links a{padding:12px 14px;border-bottom:1px solid #edf2f5}.nav-links a:last-child{border:0}
 .nav-action{text-align:center;margin-top:5px}.brand{min-width:0}.brand-name{font-size:14px}
 .hero{min-height:620px}.hero-inner{padding:74px 0 145px}h1{font-size:43px}
 .hero-timer{right:15px;bottom:28px}.hero-note{gap:17px}
 .section-head{display:block}.section-head .text-link{display:inline-block;margin-top:12px}
 .content-grid{grid-template-columns:repeat(2,1fr);gap:14px}.cover{height:205px}
 .channel-layout,.news-grid{grid-template-columns:1fr 1fr}.faq-layout{grid-template-columns:1fr;gap:20px}
 .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (max-width:520px){
 body{font-size:14px}.container{width:calc(100% - 28px)}
 .brand-mark{width:35px;height:35px}.brand-name{font-size:13px}
 h1{font-size:36px}.hero-subtitle{font-size:16px}.hero-copy{font-size:14px}
 .hero-actions .button{width:100%}.hero-note{font-size:11px}
 .hero-note strong{font-size:17px}.hero-timer{left:14px;right:14px;min-width:0}
 .trust-grid{grid-template-columns:1fr 1fr;gap:18px 10px}.trust-item{gap:8px}.trust-icon{width:36px;height:36px}
 .section-head h2{font-size:26px}.content-grid{grid-template-columns:1fr 1fr}.cover{height:180px}
 .card-body{padding:12px}.card-title{font-size:13px;min-height:39px}.card-meta{font-size:11px}
 .feature-panel{min-height:360px;padding:24px}.feature-panel h3{font-size:25px}
 .score-panel{padding:22px 16px}.rank-item{grid-template-columns:35px 1fr 55px;padding:14px 15px}.rank-score{display:none}
 .channel-layout,.news-grid{grid-template-columns:1fr}.news-card{grid-template-columns:105px 1fr}
 .security-bar{display:block;padding:22px}.security-bar .button{margin-top:16px;width:100%}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{margin-top:30px}
}