/* roulang page: index */
:root {
            --ink: #07111f;
            --night: #0a1729;
            --panel: rgba(15, 32, 55, .76);
            --panel-strong: #102541;
            --cyan: #58e4dc;
            --blue: #66a9ff;
            --coral: #ff846d;
            --gold: #f6c86b;
            --white: #f3f8ff;
            --muted: #9baec5;
            --line: rgba(155, 195, 226, .18);
            --line-bright: rgba(88, 228, 220, .42);
            --radius: 12px;
            --shadow: 0 22px 70px rgba(0, 0, 0, .28);
            --ease: 180ms ease;
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--white);
            background: var(--ink);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            letter-spacing: 0;
        }
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            opacity: .22;
            background-image: linear-gradient(rgba(100,160,220,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(100,160,220,.035) 1px, transparent 1px);
            background-size: 42px 42px;
            mask-image: linear-gradient(to bottom, #000, transparent 78%);
        }
        a { color: inherit; text-decoration: none; transition: color var(--ease), border-color var(--ease), background var(--ease), transform var(--ease); }
        img { display: block; width: 100%; }
        button, input { font: inherit; letter-spacing: 0; }
        button { cursor: pointer; }
        :focus-visible { outline: 3px solid rgba(88, 228, 220, .75); outline-offset: 3px; }
        .container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
        .section { padding: 104px 0; position: relative; }
        .section-dark { background: rgba(5, 16, 30, .56); }
        .section-head { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 38px; }
        .section-head > div { max-width: 680px; }
        .eyebrow {
            display: inline-flex; align-items: center; gap: 9px;
            color: var(--cyan); font-size: 12px; font-weight: 700; letter-spacing: 0;
            text-transform: uppercase; margin-bottom: 14px;
        }
        .eyebrow::before { content: ""; width: 25px; height: 2px; background: var(--coral); }
        h1, h2, h3, p { margin-top: 0; }
        h1 { font-size: clamp(40px, 5vw, 70px); line-height: 1.13; margin-bottom: 24px; font-weight: 800; }
        h2 { font-size: clamp(30px, 3.3vw, 46px); line-height: 1.2; margin-bottom: 14px; font-weight: 800; }
        h3 { font-size: 19px; line-height: 1.35; margin-bottom: 10px; }
        .lead { color: #c4d1e1; font-size: 18px; line-height: 1.9; }
        .section-copy { color: var(--muted); max-width: 620px; }
        .topbar {
            position: sticky; top: 0; z-index: 20; height: 78px;
            background: rgba(7, 17, 31, .82); border-bottom: 1px solid var(--line);
            backdrop-filter: blur(18px);
        }
        .nav-wrap { height: 100%; display: flex; align-items: center; gap: 28px; }
        .logo { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-size: 17px; font-weight: 800; }
        .logo-mark {
            width: 30px; height: 30px; display: grid; place-items: center; color: var(--ink);
            background: var(--cyan); border-radius: 7px; font-weight: 900; box-shadow: 0 0 24px rgba(88,228,220,.35);
        }
        .nav-links { display: flex; align-items: center; gap: 4px; margin: 0 auto; }
        .nav-links a { padding: 9px 13px; color: var(--muted); border-bottom: 2px solid transparent; font-size: 14px; }
        .nav-links a:hover, .nav-links a.active { color: var(--white); border-color: var(--cyan); }
        .nav-actions { display: flex; align-items: center; gap: 10px; }
        .nav-search { width: 190px; height: 38px; padding: 0 13px; color: var(--white); background: rgba(255,255,255,.06); border: 1px solid var(--line); border-radius: 7px; }
        .nav-search::placeholder { color: #7890aa; }
        .nav-search:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(88,228,220,.1); }
        .menu-toggle { display: none; color: var(--white); background: transparent; border: 1px solid var(--line); padding: 6px 10px; border-radius: 6px; }
        .button {
            display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 19px;
            border-radius: 7px; border: 1px solid transparent; font-weight: 700; font-size: 14px;
            transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease);
        }
        .button:hover { transform: translateY(-2px); }
        .button:active { transform: translateY(0); }
        .button-primary { color: var(--ink); background: var(--cyan); box-shadow: 0 0 24px rgba(88,228,220,.22); }
        .button-primary:hover { background: #8af3eb; box-shadow: 0 0 30px rgba(88,228,220,.45); }
        .button-ghost { color: var(--white); background: transparent; border-color: var(--line-bright); }
        .button-ghost:hover { background: rgba(88,228,220,.1); border-color: var(--cyan); }
        .button-small { min-height: 38px; padding: 0 14px; font-size: 13px; }
        .hero {
            min-height: 700px; display: flex; align-items: center; overflow: hidden;
            background: #091829 url("https://images.unsplash.com/photo-1528360983277-13d401cdc186?auto=format&fit=crop&w=1800&q=85") center/cover no-repeat;
            position: relative;
        }
        .hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,15,29,.96) 0%, rgba(6,20,37,.84) 48%, rgba(5,15,29,.5) 100%); }
        .hero-content { position: relative; z-index: 1; width: 100%; padding: 94px 0 72px; }
        .hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); gap: 70px; align-items: center; }
        .hero h1 { max-width: 690px; }
        .hero h1 span { color: var(--cyan); }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 40px; }
        .hero-points { display: flex; flex-wrap: wrap; gap: 22px; color: #b9c9da; font-size: 13px; }
        .hero-points strong { display: block; color: var(--white); font-size: 22px; line-height: 1.2; }
        .hero-panel { border: 1px solid var(--line-bright); background: rgba(8, 25, 47, .78); backdrop-filter: blur(16px); padding: 23px; border-radius: var(--radius); box-shadow: var(--shadow); }
        .panel-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 17px; border-bottom: 1px solid var(--line); margin-bottom: 9px; }
        .panel-label { color: var(--muted); font-size: 12px; }
        .live-dot { display: inline-flex; align-items: center; gap: 7px; color: var(--cyan); font-size: 12px; }
        .live-dot::before { content: ""; width: 7px; height: 7px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 10px var(--cyan); }
        .rank-row { display: grid; grid-template-columns: 28px 58px 1fr auto; gap: 12px; align-items: center; padding: 13px 0; border-bottom: 1px solid rgba(155,195,226,.1); }
        .rank-row:last-child { border-bottom: 0; }
        .rank-no { color: var(--coral); font-weight: 800; }
        .rank-cover { width: 58px; height: 43px; object-fit: cover; border-radius: 5px; }
        .rank-name { font-size: 14px; font-weight: 700; }
        .rank-meta { color: var(--muted); font-size: 11px; }
        .status { color: var(--cyan); font-size: 12px; white-space: nowrap; }
        .status-warm { color: var(--gold); }
        .signal-strip { display: flex; gap: 4px; margin-top: 20px; }
        .signal-strip i { height: 4px; flex: 1; background: var(--cyan); opacity: .7; }
        .signal-strip i:nth-child(4), .signal-strip i:nth-child(5) { background: var(--coral); }
        .issue-grid { display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 16px; }
        .issue-item { min-height: 190px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
        .issue-item:nth-child(2) { background: rgba(255,132,109,.08); border-color: rgba(255,132,109,.32); }
        .issue-number { display: block; color: var(--coral); font-size: 12px; font-weight: 800; margin-bottom: 30px; }
        .issue-item p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
        .solution-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 54px; align-items: center; }
        .solution-list { border-top: 1px solid var(--line); }
        .solution-row { display: grid; grid-template-columns: 46px 1fr auto; gap: 18px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line); }
        .solution-icon { color: var(--cyan); font-size: 23px; font-weight: 800; }
        .solution-row p { color: var(--muted); margin: 0; font-size: 13px; }
        .solution-row b { font-size: 15px; }
        .metrics-band { background: #0c2038; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
        .metrics { display: grid; grid-template-columns: repeat(4, 1fr); }
        .metric { padding: 30px 22px; border-right: 1px solid var(--line); }
        .metric:last-child { border-right: 0; }
        .metric strong { display: block; color: var(--cyan); font-size: 35px; line-height: 1.15; margin-bottom: 6px; }
        .metric span { color: var(--muted); font-size: 13px; }
        .feature-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
        .media-feature, .media-small { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
        .media-feature { display: grid; grid-template-columns: 1fr .9fr; }
        .media-image { min-height: 270px; object-fit: cover; }
        .media-info { padding: 25px; }
        .media-small { display: flex; min-height: 126px; }
        .media-small img { width: 142px; object-fit: cover; }
        .media-small .media-info { padding: 16px; }
        .media-info p { color: var(--muted); font-size: 13px; margin-bottom: 16px; }
        .tag { display: inline-flex; align-items: center; padding: 4px 9px; border-radius: 4px; color: var(--cyan); background: rgba(88,228,220,.1); border: 1px solid rgba(88,228,220,.25); font-size: 11px; margin: 0 5px 8px 0; }
        .tag.coral { color: var(--coral); background: rgba(255,132,109,.1); border-color: rgba(255,132,109,.25); }
        .news-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: 60px; }
        .news-list { border-top: 1px solid var(--line); }
        .news-item { display: flex; justify-content: space-between; gap: 20px; padding: 19px 0; border-bottom: 1px solid var(--line); }
        .news-item a { font-weight: 700; }
        .news-item a:hover { color: var(--cyan); }
        .news-item time { color: var(--muted); white-space: nowrap; font-size: 12px; }
        .note-panel { padding: 25px; background: rgba(246,200,107,.08); border-left: 3px solid var(--gold); }
        .note-panel p { color: #c8c4a8; font-size: 14px; margin-bottom: 0; }
        .quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
        .quote { padding: 26px; border: 1px solid var(--line); background: var(--panel); border-radius: var(--radius); }
        .quote-mark { color: var(--cyan); font-size: 31px; line-height: 1; }
        .quote p { color: #d3deeb; font-size: 15px; margin: 15px 0 24px; }
        .quote small { color: var(--muted); }
        .faq-list { max-width: 860px; margin: 0 auto; }
        .faq-item { border-top: 1px solid var(--line); }
        .faq-item:last-child { border-bottom: 1px solid var(--line); }
        .faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 20px 0; color: var(--white); background: transparent; border: 0; text-align: left; font-weight: 700; }
        .faq-question span { color: var(--cyan); font-size: 22px; transition: transform var(--ease); }
        .faq-answer { display: none; color: var(--muted); padding: 0 45px 22px 0; font-size: 14px; }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question span { transform: rotate(45deg); }
        .cta-section { padding: 80px 0; background: #0a263d; border-top: 1px solid var(--line); }
        .cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 34px; }
        .cta-inner p { color: var(--muted); max-width: 600px; margin-bottom: 0; }
        .search-large { display: flex; gap: 10px; margin-top: 24px; max-width: 650px; }
        .search-large input { min-width: 0; flex: 1; height: 50px; padding: 0 16px; color: var(--white); background: rgba(0,0,0,.22); border: 1px solid var(--line-bright); border-radius: 7px; }
        .search-large input::placeholder { color: #8298b1; }
        .search-large input:focus { outline: none; box-shadow: 0 0 0 3px rgba(88,228,220,.12); border-color: var(--cyan); }
        footer { padding: 53px 0 25px; background: #050e1a; border-top: 1px solid var(--line); }
        .footer-grid { display: grid; grid-template-columns: 1.3fr .7fr .8fr; gap: 45px; padding-bottom: 42px; }
        .footer-brand p { color: var(--muted); max-width: 390px; font-size: 13px; margin-top: 15px; }
        .footer-title { color: var(--white); font-size: 13px; margin-bottom: 14px; font-weight: 800; }
        .footer-links { display: flex; flex-direction: column; gap: 8px; }
        .footer-links a { color: var(--muted); font-size: 13px; }
        .footer-links a:hover { color: var(--cyan); }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid var(--line); color: #6e829a; font-size: 12px; }
        @media (max-width: 1024px) {
            .nav-wrap { gap: 16px; }
            .nav-links a { padding: 9px 7px; }
            .nav-search { width: 145px; }
            .hero-grid, .solution-layout, .news-layout { gap: 30px; }
            .section { padding: 82px 0; }
        }
        @media (max-width: 768px) {
            .container { width: min(100% - 30px, 640px); }
            .topbar { height: 68px; }
            .nav-wrap { justify-content: space-between; }
            .menu-toggle { display: block; order: 3; }
            .nav-links { display: none; position: absolute; top: 68px; left: 15px; right: 15px; padding: 10px; flex-direction: column; align-items: stretch; background: #0a1a2d; border: 1px solid var(--line-bright); border-radius: 8px; }
            .nav-links.is-open { display: flex; }
            .nav-links a { padding: 12px; border-bottom: 0; }
            .nav-actions { margin-left: auto; }
            .nav-search, .nav-actions .button-ghost { display: none; }
            .hero { min-height: auto; }
            .hero-content { padding: 80px 0 60px; }
            .hero-grid, .solution-layout, .feature-layout, .news-layout { grid-template-columns: 1fr; }
            .hero-panel { margin-top: 15px; }
            .issue-grid, .quotes { grid-template-columns: 1fr; }
            .issue-item { min-height: auto; }
            .metrics { grid-template-columns: repeat(2, 1fr); }
            .metric:nth-child(2) { border-right: 0; }
            .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
            .media-feature { grid-template-columns: 1fr; }
            .media-feature .media-image { min-height: 220px; }
            .section-head, .cta-inner { display: block; }
            .section-head .button { margin-top: 18px; }
            .cta-inner .button { margin-top: 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            h1 { font-size: 39px; }
            .lead { font-size: 16px; }
            .hero-actions, .search-large { flex-direction: column; }
            .hero-actions .button, .search-large .button { width: 100%; }
            .hero-points { gap: 15px; }
            .rank-row { grid-template-columns: 23px 48px 1fr; }
            .rank-cover { width: 48px; height: 38px; }
            .rank-row .status { grid-column: 3; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { display: block; }
            .footer-bottom span { display: block; margin-top: 7px; }
        }

/* roulang page: category2 */
:root {
      --ink:#07111f; --night:#0a1729; --panel:rgba(15,32,55,.76); --panel-strong:#102541;
      --cyan:#58e4dc; --blue:#66a9ff; --coral:#ff846d; --gold:#f6c86b; --white:#f3f8ff;
      --muted:#9baec5; --line:rgba(155,195,226,.18); --line-bright:rgba(88,228,220,.42);
      --radius:12px; --shadow:0 22px 70px rgba(0,0,0,.28); --ease:180ms ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--white);background:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.7;letter-spacing:0}
    body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.2;background-image:linear-gradient(rgba(100,160,220,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(100,160,220,.035) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 78%)}
    a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
    img{display:block;width:100%}
    button,input{font:inherit;letter-spacing:0}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .section{padding:94px 0;position:relative}
    .section-dark{background:rgba(5,16,30,.56)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
    .section-head>div{max-width:700px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--cyan);font-size:12px;font-weight:700;margin-bottom:13px}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0} h1{font-size:clamp(34px,5vw,62px);line-height:1.18;margin-bottom:20px} h2{font-size:34px;line-height:1.25;margin-bottom:12px} h3{font-size:18px;line-height:1.4;margin-bottom:9px}
    .lead{color:#c4d1e1;font-size:18px;line-height:1.85}.section-copy{color:var(--muted);max-width:650px}
    .topbar{position:sticky;top:0;z-index:20;height:78px;background:rgba(7,17,31,.86);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
    .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:17px;font-weight:800}
    .logo-mark{width:30px;height:30px;display:grid;place-items:center;color:var(--ink);background:var(--cyan);border-radius:7px;font-weight:900;box-shadow:0 0 24px rgba(88,228,220,.35)}
    .nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}.nav-links a{padding:9px 13px;color:var(--muted);border-bottom:2px solid transparent;font-size:14px}.nav-links a:hover,.nav-links a.active{color:var(--white);border-color:var(--cyan)}
    .nav-actions{display:flex;align-items:center;gap:10px}.nav-search{width:190px;height:38px;padding:0 13px;color:var(--white);background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:7px}.nav-search::placeholder{color:#7890aa}.nav-search:focus{outline:0;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(88,228,220,.1)}
    .menu-toggle{display:none;color:var(--white);background:transparent;border:1px solid var(--line);padding:6px 10px;border-radius:6px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:7px;border:1px solid transparent;font-weight:700;font-size:14px;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease)}
    .button:hover{transform:translateY(-2px)}.button:active{transform:translateY(0)}.button-primary{color:var(--ink);background:var(--cyan);box-shadow:0 0 24px rgba(88,228,220,.22)}.button-primary:hover{background:#8af3eb;box-shadow:0 0 30px rgba(88,228,220,.45)}.button-ghost{color:var(--white);background:transparent;border-color:var(--line-bright)}.button-ghost:hover{background:rgba(88,228,220,.1);border-color:var(--cyan)}.button-small{min-height:38px;padding:0 14px;font-size:13px}
    .sub-hero{padding:82px 0 65px;background:#091829 url("https://images.unsplash.com/photo-1528360983277-13d401cdc186?auto=format&fit=crop&w=1800&q=85") center/cover;position:relative}
    .sub-hero:before{content:"";position:absolute;inset:0;background:rgba(5,15,29,.86)}.sub-hero .container{position:relative;z-index:1}
    .sub-hero-grid{display:grid;grid-template-columns:1fr 340px;gap:54px;align-items:end}.sub-hero h1{max-width:760px}.sub-hero h1 span{color:var(--cyan)}
    .status-panel{padding:22px;border:1px solid var(--line-bright);border-radius:var(--radius);background:rgba(8,25,47,.78);backdrop-filter:blur(14px)}
    .status-line{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line)}.status-line:last-child{border:0}.status-line small{color:var(--muted)}.status-line strong{color:var(--cyan)}
    .search-band{padding:22px 0;background:rgba(16,37,65,.68);border-bottom:1px solid var(--line)}
    .search-form{display:grid;grid-template-columns:1fr 170px 130px;gap:10px}.field{height:46px;width:100%;padding:0 14px;color:var(--white);background:rgba(4,14,28,.8);border:1px solid var(--line);border-radius:7px}.field:focus{outline:0;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(88,228,220,.1)}
    .browse-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:28px}.filter-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:24px}.tag{display:inline-flex;align-items:center;min-height:29px;padding:0 10px;border:1px solid var(--line);border-radius:5px;color:var(--muted);font-size:12px;background:rgba(255,255,255,.035)}.tag.active{color:var(--ink);background:var(--cyan);border-color:var(--cyan)}
    .content-list{display:grid;gap:14px}.content-item{display:grid;grid-template-columns:166px 1fr auto;gap:20px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}.content-item:hover{transform:translateY(-2px);border-color:var(--line-bright);box-shadow:0 12px 30px rgba(0,0,0,.2)}
    .cover{height:106px;object-fit:cover;border-radius:8px;filter:saturate(.85)}.content-item:hover .cover{filter:saturate(1.1)}
    .item-meta{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0;color:var(--muted);font-size:12px}.item-meta .ok{color:var(--cyan)}.item-desc{margin:0;color:var(--muted);font-size:13px}
    .side-panel{padding:22px;border-left:1px solid var(--line);background:rgba(10,23,41,.45)}.side-panel h3{color:var(--cyan)}.side-list{list-style:none;margin:15px 0 26px;padding:0}.side-list li{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);color:#c4d1e1;font-size:13px}.side-list span{color:var(--muted)}
    .empty-state{margin-top:18px;padding:18px;border:1px dashed var(--line-bright);border-radius:8px;color:var(--muted);font-size:13px}
    .notice-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.info-panel{padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}.info-panel p{color:var(--muted);margin-bottom:0}.signal{display:flex;align-items:center;gap:9px;color:var(--gold);font-size:13px}.signal:before{content:"";width:8px;height:8px;background:var(--gold);border-radius:50%;box-shadow:0 0 12px var(--gold)}
    .faq-wrap{max-width:850px}.accordion{background:transparent;margin:0}.accordion-item{border:1px solid var(--line);border-bottom:0;background:var(--panel)}.accordion-item:last-child{border-bottom:1px solid var(--line)}.accordion-title{color:var(--white);font-weight:700;background:transparent;padding:19px 22px}.accordion-title:hover,.accordion-title:focus{color:var(--cyan);background:rgba(88,228,220,.06)}.accordion-content{color:var(--muted);background:#0b1c31;border:0;padding:0 22px 20px}.accordion-content p{margin:0}
    .cta{padding:65px 0;background:linear-gradient(110deg,rgba(16,37,65,.95),rgba(9,28,45,.72));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{margin-bottom:8px}.cta p{color:var(--muted);margin-bottom:0}
    footer{padding:58px 0 22px;background:#050f1d}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:50px}.footer-brand p{max-width:430px;color:var(--muted);font-size:13px;margin:17px 0 0}.footer-title{font-size:13px;color:var(--white);font-weight:700;margin-bottom:14px}.footer-links{display:grid;gap:8px;color:var(--muted);font-size:13px}.footer-links a:hover{color:var(--cyan)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid var(--line);color:#71859e;font-size:12px}
    :focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
    @media(max-width:1024px){.nav-wrap{gap:15px}.nav-search{width:145px}.sub-hero-grid{grid-template-columns:1fr 290px}.browse-layout{grid-template-columns:1fr 240px}}
    @media(max-width:768px){.container{width:min(100% - 32px,620px)}.topbar{height:68px}.nav-wrap{justify-content:space-between}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;margin:0;padding:12px;background:#0b1c31;border:1px solid var(--line-bright);border-radius:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{border-bottom:0;border-left:2px solid transparent}.nav-links a:hover,.nav-links a.active{border-left-color:var(--cyan);border-bottom:0}.nav-actions{margin-left:auto}.nav-search{display:none}.nav-actions .button-ghost{display:none}.sub-hero{padding:64px 0 48px}.sub-hero-grid,.browse-layout,.notice-grid{grid-template-columns:1fr}.status-panel{max-width:430px}.search-form{grid-template-columns:1fr 1fr}.search-form .field{grid-column:1/-1}.browse-layout{gap:38px}.side-panel{border-left:0;border-top:1px solid var(--line);padding:25px 0;background:transparent}.section{padding:68px 0}.section-head,.cta-inner{display:block}.section-head .button{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}
    @media(max-width:520px){h1{font-size:35px}h2{font-size:28px}.logo{font-size:14px}.logo-mark{width:27px;height:27px}.nav-actions .button-primary{min-height:38px;padding:0 11px;font-size:12px}.content-item{grid-template-columns:92px 1fr;gap:13px}.cover{height:112px;grid-row:span 2}.content-item .button{grid-column:2;justify-self:start}.item-desc{font-size:12px}.search-form{grid-template-columns:1fr}.search-form .button{width:100%}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}}

/* roulang page: category1 */
:root {
      --ink:#07111f;
      --night:#0a1729;
      --panel:rgba(15,32,55,.76);
      --panel-strong:#102541;
      --cyan:#58e4dc;
      --blue:#66a9ff;
      --coral:#ff846d;
      --gold:#f6c86b;
      --white:#f3f8ff;
      --muted:#9baec5;
      --line:rgba(155,195,226,.18);
      --line-bright:rgba(88,228,220,.42);
      --radius:12px;
      --shadow:0 22px 70px rgba(0,0,0,.28);
      --ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--white);background:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.7;letter-spacing:0}
    body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;background-image:linear-gradient(rgba(100,160,220,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(100,160,220,.035) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 78%)}
    a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
    img{display:block;width:100%;object-fit:cover}
    button,input{font:inherit;letter-spacing:0}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25}
    h1{font-size:clamp(38px,5vw,64px);margin-bottom:20px}
    h2{font-size:36px;margin-bottom:14px}
    h3{font-size:19px;margin-bottom:8px}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .section{padding:96px 0;position:relative}
    .section-dark{background:rgba(5,16,30,.56)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
    .section-head>div{max-width:680px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--cyan);font-size:12px;font-weight:700;margin-bottom:14px}
    .eyebrow::before{content:"";width:25px;height:2px;background:var(--coral)}
    .section-copy{color:var(--muted);max-width:650px}
    .topbar{position:sticky;top:0;z-index:20;height:78px;background:rgba(7,17,31,.86);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
    .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:17px;font-weight:800}
    .logo-mark{width:30px;height:30px;display:grid;place-items:center;color:var(--ink);background:var(--cyan);border-radius:7px;font-weight:900;box-shadow:0 0 24px rgba(88,228,220,.35)}
    .nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}
    .nav-links a{padding:9px 13px;color:var(--muted);border-bottom:2px solid transparent;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--white);border-color:var(--cyan)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{width:190px;height:38px;padding:0 13px;color:var(--white);background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:7px}
    .nav-search::placeholder{color:#7890aa}
    .nav-search:focus,.search-input:focus{outline:0;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(88,228,220,.1)}
    .menu-toggle{display:none;color:var(--white);background:transparent;border:1px solid var(--line);padding:6px 10px;border-radius:6px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:7px;border:1px solid transparent;font-weight:700;font-size:14px;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease)}
    .button:hover{transform:translateY(-2px)}
    .button:active{transform:translateY(0)}
    .button-primary{color:var(--ink);background:var(--cyan);box-shadow:0 0 24px rgba(88,228,220,.22)}
    .button-primary:hover{background:#8af3eb;box-shadow:0 0 30px rgba(88,228,220,.45)}
    .button-ghost{color:var(--white);background:transparent;border-color:var(--line-bright)}
    .button-ghost:hover{background:rgba(88,228,220,.1);border-color:var(--cyan)}
    .button-small{min-height:38px;padding:0 14px;font-size:13px}
    .inner-hero{padding:78px 0 58px;background:#091829 url("https://images.unsplash.com/photo-1528360983277-13d401cdc186?auto=format&fit=crop&w=1800&q=85") center/cover no-repeat;position:relative;border-bottom:1px solid var(--line)}
    .inner-hero::before{content:"";position:absolute;inset:0;background:rgba(5,15,29,.88)}
    .inner-hero .container{position:relative}
    .crumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:26px}
    .crumbs a:hover{color:var(--cyan)}
    .hero-summary{max-width:720px;color:#c4d1e1;font-size:18px}
    .status-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .badge{display:inline-flex;align-items:center;min-height:28px;padding:3px 10px;border:1px solid var(--line-bright);border-radius:5px;color:var(--cyan);background:rgba(88,228,220,.08);font-size:12px}
    .badge.warm{color:var(--gold);border-color:rgba(246,200,107,.4);background:rgba(246,200,107,.07)}
    .browse-layout{display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:28px;align-items:start}
    .filter-bar{display:flex;gap:12px;align-items:center;padding:14px;border:1px solid var(--line);background:rgba(15,32,55,.62);border-radius:var(--radius);margin-bottom:18px}
    .search-input{height:44px;min-width:0;flex:1;color:var(--white);background:rgba(5,16,30,.7);border:1px solid var(--line);border-radius:7px;padding:0 14px}
    .filter-select{height:44px;width:145px;color:var(--white);background:#102541;border:1px solid var(--line);border-radius:7px;padding:0 10px}
    .content-list{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:180px minmax(0,1fr) auto;gap:20px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .content-item:hover{transform:translateY(-2px);border-color:var(--line-bright);box-shadow:0 12px 38px rgba(0,0,0,.22)}
    .content-thumb{height:120px;border-radius:8px;object-fit:cover}
    .item-meta{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0;color:var(--muted);font-size:12px}
    .item-description{color:var(--muted);font-size:14px;margin-bottom:0}
    .item-action{white-space:nowrap}
    .side-panel{padding:22px;border:1px solid var(--line-bright);border-radius:var(--radius);background:rgba(15,32,55,.72);box-shadow:var(--shadow);position:sticky;top:100px}
    .side-panel h3{font-size:17px}
    .side-panel p{color:var(--muted);font-size:14px}
    .side-list{list-style:none;margin:18px 0 0;padding:0}
    .side-list li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
    .side-list li:last-child{border-bottom:0}
    .side-list span:last-child{color:var(--cyan);font-size:13px}
    .info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .info-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(15,32,55,.54)}
    .info-card strong{display:block;color:var(--cyan);font-size:28px;line-height:1.2;margin-bottom:7px}
    .info-card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .faq-list{max-width:820px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;padding:20px 0;background:transparent;border:0;color:var(--white);text-align:left;font-weight:700}
    .faq-question span:last-child{color:var(--cyan);font-size:22px}
    .faq-answer{display:none;padding:0 48px 20px 0;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-band{padding:64px 0;background:var(--panel-strong);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-inner p{color:var(--muted);margin:0;max-width:650px}
    footer{padding:60px 0 24px;background:#050d18}
    .footer-grid{display:grid;grid-template-columns:1.5fr .7fr .8fr;gap:60px;padding-bottom:44px}
    .footer-brand p{color:var(--muted);font-size:14px;max-width:430px;margin:18px 0 0}
    .footer-title{font-size:14px;font-weight:700;margin-bottom:14px}
    .footer-links{display:grid;gap:8px;color:var(--muted);font-size:14px}
    .footer-links a:hover{color:var(--cyan)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line);color:#71859d;font-size:12px}
    .empty-state{display:none;padding:42px 20px;text-align:center;border:1px dashed var(--line-bright);border-radius:var(--radius);color:var(--muted)}
    @media(max-width:1024px){.nav-wrap{gap:16px}.nav-search{width:145px}.browse-layout{grid-template-columns:1fr 240px}}
    @media(max-width:768px){.topbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:20px;right:20px;padding:12px;flex-direction:column;align-items:stretch;background:#0d2038;border:1px solid var(--line-bright);border-radius:8px}.nav-links.open{display:flex}.nav-links a{border-bottom:0;border-left:2px solid transparent}.nav-links a:hover,.nav-links a.active{border-left-color:var(--cyan);border-bottom:0}.nav-actions{margin-left:auto}.nav-search{display:none}.section{padding:72px 0}.section-head{display:block}.section-head .button{margin-top:18px}.browse-layout{grid-template-columns:1fr}.side-panel{position:static}.content-item{grid-template-columns:140px minmax(0,1fr)}.item-action{grid-column:2}.info-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta-inner .button{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}}
    @media(max-width:520px){.container{width:min(100% - 28px,1180px)}.logo{font-size:14px}.logo-mark{width:27px;height:27px}.nav-wrap{gap:9px}.nav-actions .button{display:none}.inner-hero{padding:56px 0 44px}h1{font-size:38px}.hero-summary{font-size:16px}.filter-bar{display:grid;grid-template-columns:1fr}.filter-select{width:100%}.content-item{grid-template-columns:1fr;gap:14px}.content-thumb{height:180px}.item-action{grid-column:auto;width:100%}.item-action .button{width:100%}.info-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}