/* roulang page: index */
:root {
            --ink: #172326;
            --muted: #68777a;
            --paper: #f7f9f7;
            --white: #ffffff;
            --line: #dfe8e4;
            --teal: #167d78;
            --teal-dark: #105b59;
            --mint: #dff2e9;
            --orange: #ef8d58;
            --navy: #1a3035;
            --shadow: 0 18px 50px rgba(23, 52, 51, .10);
            --soft-shadow: 0 8px 24px rgba(23, 52, 51, .07);
            --radius: 18px;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--paper);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
        }
        a { color: inherit; text-decoration: none; transition: .25s ease; }
        a:hover { color: var(--teal); }
        img { max-width: 100%; display: block; }
        button, input, textarea { font: inherit; }
        button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 3px solid rgba(239, 141, 88, .45);
            outline-offset: 3px;
        }
        .container { max-width: 1180px; }
        .topbar {
            background: var(--white);
            border-bottom: 1px solid var(--line);
            position: sticky;
            top: 0;
            z-index: 30;
            box-shadow: 0 3px 18px rgba(23, 52, 51, .04);
        }
        .navbar { min-height: 78px; }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            font-size: 19px;
            font-weight: 800;
            letter-spacing: 0;
            white-space: nowrap;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            display: grid;
            place-items: center;
            color: var(--white);
            background: var(--teal);
            border-radius: 12px 12px 12px 4px;
            box-shadow: 4px 4px 0 var(--mint);
        }
        .nav-link {
            color: #4f6264 !important;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 15px !important;
            border-radius: 9px;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--teal) !important;
            background: #edf7f2;
        }
        .search-box {
            width: 190px;
            border: 1px solid var(--line);
            border-radius: 30px;
            background: #fbfdfc;
            padding: 8px 13px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--muted);
        }
        .search-box input {
            border: 0;
            outline: 0;
            width: 100%;
            min-width: 0;
            background: transparent;
            font-size: 13px;
        }
        .btn-main, .btn-outline {
            border-radius: 10px;
            padding: 11px 19px;
            font-size: 14px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid transparent;
            transition: .25s ease;
        }
        .btn-main { color: #fff; background: var(--teal); }
        .btn-main:hover { color: #fff; background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 8px 18px rgba(22,125,120,.22); }
        .btn-outline { color: var(--teal); background: transparent; border-color: #acd5c8; }
        .btn-outline:hover { color: var(--teal-dark); background: var(--mint); }
        .hero {
            background: var(--navy);
            color: #fff;
            padding: 82px 0 76px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            width: 430px;
            height: 430px;
            border: 1px solid rgba(153, 223, 199, .18);
            border-radius: 50%;
            right: -120px;
            top: -150px;
        }
        .eyebrow, .section-kicker {
            color: var(--orange);
            font-size: 12px;
            letter-spacing: 1.5px;
            font-weight: 800;
            text-transform: uppercase;
        }
        .hero h1 {
            font-size: clamp(38px, 5vw, 68px);
            line-height: 1.15;
            letter-spacing: 0;
            max-width: 680px;
            margin: 16px 0 22px;
            font-weight: 850;
        }
        .hero-copy { color: #c6d4d1; max-width: 640px; font-size: 17px; line-height: 1.9; }
        .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
        .hero .btn-outline { color: #d9f2e7; border-color: rgba(217,242,231,.4); }
        .hero .btn-outline:hover { color: #fff; background: rgba(255,255,255,.1); }
        .hero-board {
            position: relative;
            z-index: 2;
            background: #24464a;
            border: 1px solid rgba(221, 248, 237, .17);
            padding: 24px;
            border-radius: var(--radius);
            box-shadow: 0 24px 60px rgba(0,0,0,.18);
        }
        .board-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
        .board-title { font-weight: 700; }
        .live-dot { color: #91e4bd; font-size: 12px; }
        .rank-row {
            display: grid;
            grid-template-columns: 30px 1fr 72px;
            align-items: center;
            gap: 12px;
            border-top: 1px solid rgba(255,255,255,.1);
            padding: 15px 0;
            font-size: 13px;
        }
        .rank-number { color: #9ee2c2; font-weight: 800; }
        .rank-bar { height: 6px; background: rgba(255,255,255,.12); border-radius: 8px; margin-top: 6px; overflow: hidden; }
        .rank-bar span { height: 100%; display: block; background: var(--orange); border-radius: inherit; }
        .rank-score { text-align: right; color: #d4e4df; }
        .section { padding: 88px 0; }
        .section-head { max-width: 700px; margin-bottom: 38px; }
        .section-head h2 { font-size: clamp(28px, 3.3vw, 42px); line-height: 1.25; margin: 10px 0 14px; font-weight: 800; }
        .section-head p { color: var(--muted); margin: 0; }
        .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
        .feature-card {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px;
            min-height: 220px;
            transition: .25s ease;
        }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: #b8d9cb; }
        .feature-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px; color: var(--teal); background: var(--mint); font-size: 19px; margin-bottom: 22px; }
        .feature-card h3 { font-size: 20px; margin: 0 0 10px; }
        .feature-card p { color: var(--muted); font-size: 14px; margin: 0; }
        .metric-band { background: #e9f3ee; padding: 38px 0; border-top: 1px solid #d3e5dc; border-bottom: 1px solid #d3e5dc; }
        .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .metric { border-left: 3px solid var(--teal); padding-left: 18px; }
        .metric strong { display: block; color: var(--teal-dark); font-size: 32px; line-height: 1.2; }
        .metric span { color: var(--muted); font-size: 13px; }
        .lead-wrap { display: grid; grid-template-columns: 1fr .9fr; gap: 52px; align-items: center; }
        .lead-panel { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: var(--soft-shadow); }
        .form-label { color: #526465; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
        .form-control { border: 1px solid var(--line); border-radius: 9px; min-height: 46px; }
        .form-control:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(22,125,120,.12); }
        .form-note { color: var(--muted); font-size: 12px; margin-top: 12px; }
        .scene-list { list-style: none; padding: 0; margin: 26px 0 0; }
        .scene-list li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); color: #445557; }
        .scene-list i { color: var(--teal); margin-top: 5px; }
        .news-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: 22px; }
        .news-list, .recommend-box { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 25px; }
        .news-item { display: flex; justify-content: space-between; gap: 15px; padding: 20px 0; border-bottom: 1px solid var(--line); }
        .news-item:last-child { border-bottom: 0; }
        .news-item a { font-weight: 700; color: var(--ink); }
        .news-item a:hover { color: var(--teal); }
        .news-item time { white-space: nowrap; color: #91a09e; font-size: 12px; }
        .recommend-box h3 { font-size: 20px; margin: 10px 0 20px; }
        .topic-link { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 650; }
        .privacy { background: #fff8f1; border-top: 1px solid #f3dfcf; border-bottom: 1px solid #f3dfcf; }
        .privacy-inner { display: flex; gap: 20px; align-items: flex-start; }
        .privacy i { color: var(--orange); font-size: 23px; margin-top: 4px; }
        .privacy h2 { font-size: 22px; margin: 0 0 8px; }
        .privacy p { color: #756c66; font-size: 14px; margin: 0; }
        .cta { padding: 72px 0; background: var(--teal); color: #fff; }
        .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
        .cta h2 { font-size: 34px; margin: 0 0 10px; }
        .cta p { color: #d1eee5; max-width: 650px; margin: 0; }
        .cta .btn-main { background: var(--orange); }
        .cta .btn-main:hover { background: #dc7442; }
        footer { background: #14272b; color: #c1cfcc; padding: 50px 0 88px; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; }
        footer .brand { color: #fff; margin-bottom: 15px; }
        .footer-copy { color: #91a29f; font-size: 13px; max-width: 380px; }
        .footer-heading { color: #fff; font-weight: 700; margin-bottom: 15px; }
        .footer-link { display: block; color: #9cafab; font-size: 13px; margin: 8px 0; }
        .footer-link:hover { color: #fff; }
        .copyright { border-top: 1px solid rgba(255,255,255,.1); margin-top: 35px; padding-top: 20px; color: #7f9290; font-size: 12px; }
        .fixed-cta { position: fixed; right: 22px; bottom: 22px; z-index: 25; }
        .fixed-cta a { background: var(--orange); color: #fff; border-radius: 30px; padding: 12px 18px; box-shadow: 0 8px 25px rgba(85,44,22,.28); font-size: 13px; font-weight: 800; }
        .fixed-cta a:hover { background: #d97444; transform: translateY(-2px); }
        @media (max-width: 991px) {
            .search-box { display: none; }
            .navbar-collapse { padding: 15px 0; }
            .lead-wrap, .news-layout { grid-template-columns: 1fr; }
            .hero { padding-top: 62px; }
        }
        @media (max-width: 767px) {
            .navbar { min-height: 68px; }
            .brand { font-size: 16px; }
            .brand-mark { width: 34px; height: 34px; }
            .hero h1 { font-size: 40px; }
            .hero-copy { font-size: 15px; }
            .hero-board { margin-top: 30px; }
            .section { padding: 62px 0; }
            .feature-grid, .metric-grid { grid-template-columns: 1fr 1fr; }
            .metric strong { font-size: 27px; }
            .cta-inner { display: block; }
            .cta .btn-main { margin-top: 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid > div:first-child { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .feature-grid, .metric-grid, .footer-grid { grid-template-columns: 1fr; }
            .feature-card { min-height: auto; }
            .news-item { display: block; }
            .news-item time { display: block; margin-top: 5px; }
            .fixed-cta { right: 12px; bottom: 12px; }
            .fixed-cta a { padding: 10px 14px; }
        }

/* roulang page: category1 */
:root{--ink:#172326;--muted:#68777a;--paper:#f7f9f7;--white:#fff;--line:#dfe8e4;--teal:#167d78;--teal-dark:#105b59;--mint:#dff2e9;--orange:#ef8d58;--navy:#1a3035;--shadow:0 18px 50px rgba(23,52,51,.10);--soft-shadow:0 8px 24px rgba(23,52,51,.07);--radius:18px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none;transition:.25s ease}a:hover{color:var(--teal)}img{max-width:100%;display:block}button,input{font:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(239,141,88,.45);outline-offset:3px}.container{max-width:1180px}
    .topbar{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;box-shadow:0 3px 18px rgba(23,52,51,.04)}.navbar{min-height:78px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:19px;font-weight:800;white-space:nowrap}.brand-mark{width:38px;height:38px;display:grid;place-items:center;color:#fff;background:var(--teal);border-radius:12px 12px 12px 4px;box-shadow:4px 4px 0 var(--mint)}.nav-link{color:#4f6264!important;font-size:14px;font-weight:600;padding:10px 15px!important;border-radius:9px}.nav-link:hover,.nav-link.active{color:var(--teal)!important;background:#edf7f2}.search-box{width:190px;border:1px solid var(--line);border-radius:30px;background:#fbfdfc;padding:8px 13px;display:flex;align-items:center;gap:8px;color:var(--muted)}.search-box input{border:0;outline:0;width:100%;min-width:0;background:transparent;font-size:13px}.btn-main,.btn-outline{border-radius:10px;padding:11px 19px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:8px;border:1px solid transparent;transition:.25s ease}.btn-main{color:#fff;background:var(--teal)}.btn-main:hover{color:#fff;background:var(--teal-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(22,125,120,.22)}.btn-outline{color:var(--teal);background:transparent;border-color:#acd5c8}.btn-outline:hover{color:var(--teal-dark);background:var(--mint)}
    .hero{background:var(--navy);color:#fff;padding:76px 0 70px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(153,223,199,.18);border-radius:50%;right:-120px;top:-180px}.eyebrow,.section-kicker{color:var(--orange);font-size:12px;letter-spacing:1.5px;font-weight:800}.hero h1{font-size:clamp(36px,5vw,64px);line-height:1.16;max-width:680px;margin:16px 0 22px;font-weight:850}.hero-copy{color:#c6d4d1;max-width:650px;font-size:17px;line-height:1.9}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.hero .btn-outline{color:#d9f2e7;border-color:rgba(217,242,231,.4)}.hero .btn-outline:hover{color:#fff;background:rgba(255,255,255,.1)}.hero-board{position:relative;z-index:2;background:#24464a;border:1px solid rgba(221,248,237,.17);padding:25px;border-radius:var(--radius);box-shadow:0 24px 60px rgba(0,0,0,.18)}.board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.board-title{font-weight:700}.live-dot{color:#9be0be;font-size:12px}.rank-row{display:grid;grid-template-columns:30px 1fr 76px;align-items:center;gap:12px;border-top:1px solid rgba(255,255,255,.1);padding:15px 0;font-size:13px}.rank-row strong{color:#a9e2cf}.bar{height:6px;background:rgba(255,255,255,.14);border-radius:10px;margin-top:7px;overflow:hidden}.bar i{display:block;height:100%;background:var(--orange);border-radius:10px}
    .section{padding:86px 0}.section-head{max-width:710px;margin-bottom:36px}.section-head h2{font-size:clamp(28px,3.3vw,42px);line-height:1.25;margin:10px 0 14px;font-weight:800}.section-head p{color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card,.topic-card,.quote-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:.25s ease}.feature-card{padding:28px;min-height:215px}.feature-card:hover,.topic-card:hover,.quote-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b8d9cb}.feature-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:13px;color:var(--teal);background:var(--mint);font-size:19px;margin-bottom:21px}.feature-card h3{font-size:20px;margin:0 0 10px}.feature-card p{color:var(--muted);font-size:14px;margin:0}.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}.dark-panel{background:var(--navy);color:#fff;border-radius:var(--radius);padding:38px}.dark-panel h2{font-size:34px;line-height:1.3;margin:10px 0 16px}.dark-panel p{color:#c4d3d0}.check-list{list-style:none;padding:0;margin:25px 0 0}.check-list li{display:flex;gap:11px;align-items:flex-start;padding:10px 0;color:#dbe8e4}.check-list i{color:#8ed6b6;margin-top:6px}.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.topic-card{padding:25px;display:flex;gap:18px;align-items:flex-start}.topic-number{color:var(--orange);font-size:24px;font-weight:800;line-height:1}.topic-card h3{font-size:18px;margin:0 0 6px}.topic-card p{font-size:14px;color:var(--muted);margin:0}.stats{background:#eaf5ef;border-top:1px solid #d4e8dd;border-bottom:1px solid #d4e8dd}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.stat{padding:22px 0}.stat strong{display:block;color:var(--teal);font-size:34px;line-height:1.2}.stat span{color:var(--muted);font-size:14px}.faq-wrap{max-width:850px}.accordion-item{background:var(--white);border:1px solid var(--line)!important;margin-bottom:10px;border-radius:12px!important;overflow:hidden}.accordion-button{font-weight:700;color:var(--ink);background:#fff;box-shadow:none!important;padding:20px 22px}.accordion-button:not(.collapsed){color:var(--teal);background:#edf7f2}.accordion-body{color:var(--muted);font-size:14px;padding:0 22px 21px}.cta{background:var(--orange);color:#fff;padding:55px 0}.cta-inner{display:flex;justify-content:space-between;gap:30px;align-items:center}.cta h2{font-size:32px;line-height:1.3;margin:0 0 8px}.cta p{margin:0;color:#fff3ed}.cta .btn-main{background:var(--navy)}.cta .btn-main:hover{background:#102428}footer{background:var(--navy);color:#fff;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.6fr .7fr 1fr;gap:60px;padding-bottom:35px}.footer-copy{color:#aebfbc;font-size:14px;max-width:380px;margin:18px 0 0}.footer-heading{font-size:13px;color:var(--orange);font-weight:800;margin-bottom:13px}.footer-link{display:block;color:#c7d5d2;font-size:14px;margin:7px 0}.footer-link:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;color:#8ea4a0;font-size:12px}
    @media(max-width:991px){.navbar-collapse{padding:16px 0}.search-box{width:100%}.hero{padding-top:58px}.split{grid-template-columns:1fr;gap:28px}.feature-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:767px){.container{padding-left:20px;padding-right:20px}.brand{font-size:16px}.brand-mark{width:34px;height:34px}.hero h1{font-size:39px}.hero-board{margin-top:35px}.section{padding:62px 0}.feature-grid,.topic-grid,.stat-grid{grid-template-columns:1fr}.feature-card{min-height:auto}.dark-panel{padding:27px}.dark-panel h2{font-size:28px}.cta-inner{display:block}.cta .btn-main{margin-top:22px}.footer-grid{grid-template-columns:1fr;gap:28px}.search-box{margin-bottom:6px}}