/* roulang page: index */
:root {
            --bg: #f7f0e7;
            --paper: #fffaf4;
            --paper-strong: #fffdf9;
            --ink: #282421;
            --muted: #716861;
            --soft: #a19890;
            --coral: #c9664f;
            --coral-deep: #a84b3b;
            --sage: #79958a;
            --sage-pale: #e5eee8;
            --sand: #ead8c6;
            --line: #dfd2c5;
            --shadow: 0 18px 50px rgba(76, 53, 37, .09);
            --shadow-soft: 0 8px 24px rgba(76, 53, 37, .07);
            --r-sm: 10px;
            --r-md: 18px;
            --r-lg: 30px;
            --max: 1220px;
            --gap: clamp(64px, 8vw, 116px);
        }

        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            color: var(--ink);
            background: var(--bg);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        button, input, select, textarea { font: inherit; }
        button { cursor: pointer; }
        img, svg { display: block; max-width: 100%; }
        ::selection { color: var(--paper); background: var(--coral); }

        .container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
        .section { padding-block: var(--gap); }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: var(--coral-deep);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .15em;
            text-transform: uppercase;
        }
        .eyebrow::before {
            content: "";
            width: 27px;
            height: 1px;
            background: var(--coral);
        }
        .section-head { max-width: 690px; margin-bottom: 38px; }
        .section-head h2 {
            margin: 12px 0 12px;
            font-size: clamp(30px, 4vw, 52px);
            line-height: 1.18;
            letter-spacing: -.045em;
            font-weight: 800;
        }
        .section-head p { margin: 0; color: var(--muted); max-width: 640px; }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(247, 240, 231, .92);
            border-bottom: 1px solid transparent;
            backdrop-filter: blur(14px);
            transition: box-shadow .25s, border-color .25s;
        }
        .site-header.scrolled { border-color: var(--line); box-shadow: 0 6px 24px rgba(70, 48, 33, .06); }
        .nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
        .brand { display: inline-flex; align-items: center; gap: 12px; min-width: 250px; }
        .brand-mark {
            width: 38px; height: 38px; border-radius: 12px;
            background: var(--coral); color: var(--paper);
            display: grid; place-items: center; font-weight: 900; letter-spacing: -.08em;
        }
        .brand-text { font-size: 16px; line-height: 1.2; font-weight: 850; letter-spacing: -.03em; }
        .brand-text small { display: block; color: var(--soft); font-size: 9px; letter-spacing: .16em; margin-top: 3px; }
        .desktop-nav { display: flex; align-items: center; gap: 7px; }
        .nav-link {
            position: relative; padding: 9px 13px; border-radius: 10px;
            color: var(--muted); font-size: 14px; transition: color .2s, background .2s;
        }
        .nav-link:hover, .nav-link:focus-visible, .nav-link.active { color: var(--ink); background: #efe3d7; }
        .nav-link.active::after { content: ""; position: absolute; left: 13px; right: 13px; bottom: 4px; height: 2px; background: var(--coral); border-radius: 2px; }
        .nav-actions { display: flex; align-items: center; gap: 12px; }
        .lang-switch { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 11px; color: var(--muted); }
        .lang-switch span { padding: 3px 9px; border-radius: 999px; }
        .lang-switch .current { color: var(--paper); background: var(--ink); }
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 9px;
            min-height: 44px; padding: 10px 18px; border: 1px solid transparent; border-radius: 999px;
            font-size: 14px; font-weight: 750; transition: transform .2s, background .2s, color .2s, border-color .2s, box-shadow .2s;
        }
        .btn-primary { color: var(--paper); background: var(--coral); box-shadow: 0 8px 18px rgba(201,102,79,.18); }
        .btn-primary:hover { background: var(--coral-deep); transform: translateY(-2px); }
        .btn-secondary { color: var(--ink); border-color: var(--line); background: transparent; }
        .btn-secondary:hover { background: var(--paper); border-color: var(--coral); transform: translateY(-2px); }
        .btn:focus-visible, .nav-link:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 3px solid rgba(201,102,79,.28); outline-offset: 3px;
        }
        .btn:active { transform: translateY(0); }
        .menu-toggle { display: none; border: 1px solid var(--line); background: var(--paper); border-radius: 10px; padding: 8px 11px; }

        .hero {
            position: relative; overflow: hidden; padding: 80px 0 54px;
            background: var(--bg);
        }
        .hero::before {
            content: ""; position: absolute; width: 420px; height: 260px; right: -90px; top: -65px;
            background: #ecd7c3; border-radius: 48% 52% 38% 62%; transform: rotate(-12deg); opacity: .72;
        }
        .hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: end; }
        .hero h1 { max-width: 720px; margin: 18px 0 20px; font-size: clamp(42px, 6vw, 78px); line-height: 1.06; letter-spacing: -.07em; font-weight: 900; }
        .hero-copy { max-width: 650px; color: var(--muted); font-size: 18px; line-height: 1.9; }
        .hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
        .hero-note { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 28px; color: var(--soft); font-size: 12px; }
        .hero-note strong { color: var(--ink); font-size: 18px; margin-right: 5px; }
        .hero-stage {
            position: relative; min-height: 320px; padding: 28px; border-radius: var(--r-lg);
            background: var(--paper); border: 1px solid var(--line); box-shadow: var(--shadow);
        }
        .stage-top { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
        .stage-status { display: inline-flex; align-items: center; gap: 7px; color: var(--sage); }
        .stage-status::before { content: ""; width: 7px; height: 7px; background: var(--sage); border-radius: 50%; }
        .stage-title { margin: 45px 0 20px; font-size: 25px; line-height: 1.35; font-weight: 850; }
        .rhythm { height: 66px; display: flex; align-items: center; gap: 5px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
        .rhythm i { display: block; width: 6px; border-radius: 4px; background: var(--coral); opacity: .78; }
        .rhythm i:nth-child(3n) { background: var(--sage); }
        .stage-bottom { display: flex; justify-content: space-between; margin-top: 18px; color: var(--soft); font-size: 12px; }
        .index-chip { position: absolute; right: 24px; bottom: 23px; padding: 7px 11px; border-radius: 9px; color: var(--coral-deep); background: #f5e4d6; font-size: 11px; font-weight: 800; }

        .dashboard { background: var(--paper); border-block: 1px solid var(--line); }
        .metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; background: var(--line); gap: 1px; }
        .metric { position: relative; min-height: 180px; padding: 25px; background: var(--paper-strong); transition: background .2s, color .2s; }
        .metric:hover, .metric:focus-within { background: #fff4e8; }
        .metric-number { font-size: 46px; line-height: 1; font-weight: 850; letter-spacing: -.07em; color: var(--coral-deep); }
        .metric-label { margin-top: 17px; font-weight: 800; }
        .metric small { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
        .metric-line { position: absolute; left: 25px; right: 25px; bottom: 22px; height: 3px; background: var(--sand); overflow: hidden; border-radius: 3px; }
        .metric-line::before { content: ""; display: block; width: 68%; height: 100%; background: var(--coral); border-radius: inherit; }

        .matrix { display: grid; grid-template-columns: 1.3fr .85fr .85fr; gap: 16px; align-items: stretch; }
        .matrix-card { position: relative; min-height: 290px; padding: 29px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--paper); transition: transform .25s, box-shadow .25s, border-color .25s; }
        .matrix-card:hover { transform: translateY(-5px); border-color: var(--coral); box-shadow: var(--shadow-soft); }
        .matrix-card.featured { background: var(--ink); color: var(--paper); }
        .matrix-card.featured p, .matrix-card.featured .matrix-meta { color: #c9bcb1; }
        .matrix-no { font-family: Arial, sans-serif; font-size: 12px; color: var(--coral); font-weight: 900; letter-spacing: .12em; }
        .matrix-card h3 { margin: 32px 0 10px; font-size: 25px; line-height: 1.25; }
        .matrix-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
        .matrix-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 22px; color: var(--muted); font-size: 11px; }
        .tag { padding: 4px 9px; border-radius: 999px; background: var(--sage-pale); color: #567267; font-size: 11px; font-weight: 700; }
        .featured .tag { background: #554941; color: #f6d6bf; }
        .arrow { position: absolute; right: 25px; bottom: 25px; font-size: 22px; color: var(--coral); transition: transform .2s; }
        .matrix-card:hover .arrow { transform: translateX(5px); }

        .comparison { background: #eee1d3; }
        .compare-list { display: grid; gap: 14px; }
        .compare-row { display: grid; grid-template-columns: 180px 1fr 180px; align-items: center; gap: 25px; padding: 20px 0; border-bottom: 1px solid rgba(110,76,53,.18); }
        .compare-row:last-child { border-bottom: 0; }
        .compare-name { font-weight: 800; }
        .compare-track { position: relative; height: 10px; border-radius: 10px; background: #d5c2b1; }
        .compare-fill { height: 100%; border-radius: inherit; background: var(--coral); }
        .compare-fill.sage { background: var(--sage); }
        .compare-note { color: var(--muted); font-size: 12px; text-align: right; }

        .faq-list { max-width: 850px; border-top: 1px solid var(--line); }
        .faq-item { border-bottom: 1px solid var(--line); }
        .faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; cursor: pointer; list-style: none; font-weight: 800; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: "+"; color: var(--coral); font-size: 25px; font-weight: 400; transition: transform .2s; }
        .faq-item[open] summary::after { transform: rotate(45deg); }
        .faq-answer { max-width: 740px; padding: 0 45px 22px 0; color: var(--muted); font-size: 14px; }

        .contact-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 52px; padding: clamp(30px, 5vw, 68px); border-radius: var(--r-lg); background: var(--ink); color: var(--paper); }
        .contact-panel h2 { margin: 14px 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.16; letter-spacing: -.05em; }
        .contact-panel p { color: #c9bcb1; }
        .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
        .field { display: grid; gap: 7px; }
        .field.full { grid-column: 1 / -1; }
        .field label { color: #d9cbc0; font-size: 12px; }
        .field input, .field select, .field textarea { width: 100%; border: 1px solid #62554c; border-radius: 10px; padding: 11px 13px; color: var(--paper); background: #39312d; transition: border-color .2s, background .2s; }
        .field textarea { min-height: 104px; resize: vertical; }
        .field input::placeholder, .field textarea::placeholder { color: #9f9289; }
        .field input:focus, .field select:focus, .field textarea:focus { border-color: #e38a70; background: #443a35; outline: none; }
        .form-foot { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 18px; }
        .form-tip { color: #a99b91; font-size: 11px; }
        .form-message { display: none; color: #f1b19a; font-size: 12px; margin-top: 12px; }
        .form-message.show { display: block; }

        .site-footer { padding: 34px 0 25px; border-top: 1px solid var(--line); background: #eee3d8; }
        .footer-top { display: flex; justify-content: space-between; gap: 30px; align-items: start; }
        .footer-links { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 13px; }
        .footer-links a:hover { color: var(--coral-deep); }
        .footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 42px; color: var(--soft); font-size: 11px; }
        .footer-wave { height: 22px; margin: 30px 0 5px; opacity: .65; background: repeating-linear-gradient(90deg, transparent 0 12px, var(--coral) 13px 14px, transparent 15px 22px); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }

        .back-top { position: fixed; right: 24px; bottom: 24px; z-index: 30; width: 43px; height: 43px; border: 1px solid var(--line); border-radius: 50%; color: var(--coral-deep); background: var(--paper); box-shadow: var(--shadow-soft); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
        .back-top.visible { opacity: 1; pointer-events: auto; }
        .back-top:hover { transform: translateY(-3px); }

        @media (max-width: 992px) {
            .hero-grid { grid-template-columns: 1fr; gap: 35px; }
            .hero-stage { max-width: 700px; }
            .matrix { grid-template-columns: 1fr 1fr; }
            .matrix-card.featured { grid-column: 1 / -1; min-height: 240px; }
            .contact-panel { grid-template-columns: 1fr; gap: 25px; }
        }
        @media (max-width: 768px) {
            .container { width: min(calc(100% - 40px), var(--max)); }
            .desktop-nav, .nav-actions .btn { display: none; }
            .menu-toggle { display: block; }
            .mobile-nav { display: none; padding: 10px 0 18px; border-top: 1px solid var(--line); }
            .mobile-nav.open { display: grid; gap: 5px; }
            .mobile-nav .nav-link { display: block; }
            .mobile-nav .lang-switch { width: max-content; margin: 5px 13px; }
            .metric-grid { grid-template-columns: 1fr 1fr; }
            .compare-row { grid-template-columns: 120px 1fr; gap: 14px; }
            .compare-note { grid-column: 2; text-align: left; }
            .footer-top, .footer-bottom { flex-direction: column; }
        }
        @media (max-width: 520px) {
            .hero { padding-top: 54px; }
            .hero h1 { font-size: 43px; }
            .hero-copy { font-size: 16px; }
            .hero-buttons .btn { width: 100%; }
            .hero-stage { min-height: 275px; padding: 21px; }
            .stage-title { margin-top: 32px; font-size: 21px; }
            .matrix { grid-template-columns: 1fr; }
            .matrix-card.featured { grid-column: auto; }
            .metric { min-height: 155px; padding: 19px; }
            .metric-number { font-size: 36px; }
            .metric-line { left: 19px; right: 19px; }
            .form-grid { grid-template-columns: 1fr; }
            .field.full { grid-column: auto; }
            .form-foot { align-items: stretch; flex-direction: column; }
            .form-foot .btn { width: 100%; }
        }

/* roulang page: category2 */
:root {
      --bg:#f7f0e7;--paper:#fffaf4;--paper-strong:#fffdf9;--ink:#282421;
      --muted:#716861;--soft:#a19890;--coral:#c9664f;--coral-deep:#a84b3b;
      --sage:#79958a;--sage-pale:#e5eee8;--sand:#ead8c6;--line:#dfd2c5;
      --shadow:0 18px 50px rgba(76,53,37,.09);--shadow-soft:0 8px 24px rgba(76,53,37,.07);
      --r-sm:10px;--r-md:18px;--r-lg:30px;--max:1220px;--gap:clamp(64px,8vw,116px)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--bg);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none} button,input,select,textarea{font:inherit}button{cursor:pointer}img,svg{display:block;max-width:100%}
    .container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
    .section{padding-block:var(--gap)}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--coral-deep);font-size:12px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}
    .eyebrow:before{content:"";width:27px;height:1px;background:var(--coral)}
    .section-head{max-width:700px;margin-bottom:38px}.section-head h2{margin:12px 0;font-size:clamp(30px,4vw,52px);line-height:1.18;letter-spacing:-.045em;font-weight:800}.section-head p{margin:0;color:var(--muted);max-width:650px}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(247,240,231,.94);border-bottom:1px solid transparent;backdrop-filter:blur(14px);transition:.25s}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 6px 24px rgba(70,48,33,.06)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:250px}.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:var(--paper);display:grid;place-items:center;font-weight:900;letter-spacing:-.08em}.brand-text{font-size:16px;line-height:1.2;font-weight:850;letter-spacing:-.03em}.brand-text small{display:block;color:var(--soft);font-size:9px;letter-spacing:.16em;margin-top:3px}
    .desktop-nav{display:flex;align-items:center;gap:7px}.nav-link{position:relative;padding:9px 13px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}.nav-link:hover,.nav-link:focus-visible,.nav-link.active{color:var(--ink);background:#efe3d7}.nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;background:var(--coral);border-radius:2px}
    .nav-actions{display:flex;align-items:center;gap:12px}.lang-switch{display:inline-flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;background:var(--paper);font-size:12px;color:var(--soft)}.lang-switch span{padding:5px 9px;border-radius:999px}.lang-switch .current{background:#efe3d7;color:var(--ink);font-weight:750}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 18px;border:1px solid transparent;border-radius:999px;font-size:14px;font-weight:750;transition:.2s}.btn-primary{color:var(--paper);background:var(--coral);box-shadow:0 8px 18px rgba(201,102,79,.18)}.btn-primary:hover{background:var(--coral-deep);transform:translateY(-2px)}.btn-secondary{color:var(--ink);border-color:var(--line);background:transparent}.btn-secondary:hover{background:var(--paper);border-color:var(--coral);transform:translateY(-2px)}.btn:focus-visible,.nav-link:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(201,102,79,.28);outline-offset:3px}.btn:active{transform:translateY(0)}.menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:8px 11px}.mobile-nav{display:none}
    .inner-hero{position:relative;overflow:hidden;padding:82px 0 70px}.inner-hero:after{content:"";position:absolute;width:330px;height:330px;right:4%;top:20px;border:1px solid #d9c4b0;border-radius:44% 56% 60% 40%;transform:rotate(18deg);opacity:.8}.inner-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}.inner-hero h1{max-width:700px;margin:18px 0;font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.07em;font-weight:900}.lead{max-width:650px;color:var(--muted);font-size:18px;line-height:1.9}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .orbit{min-height:330px;padding:30px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper);box-shadow:var(--shadow);position:relative}.orbit-head{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.orbit-core{width:170px;height:170px;margin:34px auto 20px;border:1px solid #d9b6a5;border-radius:50%;display:grid;place-items:center;position:relative}.orbit-core:before,.orbit-core:after{content:"";position:absolute;border:1px solid #ead8c6;border-radius:50%}.orbit-core:before{inset:20px}.orbit-core:after{inset:-16px}.orbit-core strong{font-size:36px;line-height:1;color:var(--coral-deep)}.orbit-label{text-align:center;color:var(--muted);font-size:13px}.orbit-line{height:1px;background:var(--line);position:absolute;left:30px;right:30px;bottom:32px}.orbit-line i{display:block;width:42%;height:3px;background:var(--coral);border-radius:3px}
    .overview{background:var(--paper-strong);border-block:1px solid var(--line)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--paper)}.metric{padding:25px 23px;border-right:1px solid var(--line);transition:.2s}.metric:last-child{border:0}.metric:hover{background:#fff3e9}.metric b{display:block;color:var(--coral-deep);font-size:34px;line-height:1.15}.metric span{display:block;margin-top:7px;color:var(--muted);font-size:14px}.metric small{display:block;margin-top:14px;color:var(--soft);font-size:11px}
    .focus-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:54px;align-items:start}.focus-index{position:sticky;top:112px;padding:25px;border-radius:var(--r-md);background:var(--sage-pale);border:1px solid #d1e1d9}.focus-index h3{margin:0 0 18px;font-size:22px}.index-list{display:grid;gap:8px}.index-list a{display:flex;justify-content:space-between;padding:10px 12px;border-radius:9px;color:var(--muted);font-size:14px}.index-list a:hover,.index-list a.active{background:var(--paper);color:var(--ink)}.index-list a.active{font-weight:750}.focus-groups{display:grid;gap:18px}.group-card{padding:28px 30px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);box-shadow:var(--shadow-soft);transition:.25s}.group-card:hover{transform:translateX(5px);border-color:#cfa18e;box-shadow:var(--shadow)}.group-card.large{background:#f3e1d4;padding:36px}.group-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.number{color:var(--coral-deep);font-size:13px;font-weight:850;letter-spacing:.12em}.group-card h3{margin:12px 0 8px;font-size:25px;line-height:1.35}.group-card p{margin:0;color:var(--muted)}.tags{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0}.tag{padding:4px 10px;border-radius:999px;background:rgba(255,250,244,.76);border:1px solid #e2cfc0;color:var(--muted);font-size:12px}.group-foot{display:flex;align-items:center;justify-content:space-between;margin-top:22px;padding-top:17px;border-top:1px solid rgba(120,92,72,.16);font-size:13px}.arrow{color:var(--coral-deep);font-weight:800}
    .compare{background:#efe3d7}.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.compare-card{padding:28px;border-radius:var(--r-md);background:var(--paper);border:1px solid var(--line)}.compare-card h3{margin:0 0 10px;font-size:20px}.compare-card p{margin:0;color:var(--muted);font-size:14px}.bar{height:8px;margin:22px 0 10px;background:#ead8c6;border-radius:8px;overflow:hidden}.bar i{display:block;height:100%;border-radius:8px;background:var(--coral)}.bar.sage i{background:var(--sage)}.compare-meta{display:flex;justify-content:space-between;color:var(--soft);font-size:12px}
    .faq-list{max-width:860px;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 4px}summary{list-style:none;cursor:pointer;padding:22px 8px;font-weight:750;display:flex;justify-content:space-between;gap:18px}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--coral-deep);font-size:22px;font-weight:400;line-height:1}details[open] summary:after{content:"－"}details p{margin:-7px 42px 22px 8px;color:var(--muted);font-size:14px}
    .cta{padding:30px;background:var(--coral-deep);color:var(--paper);border-radius:var(--r-lg);display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{margin:0 0 8px;font-size:clamp(27px,4vw,44px);line-height:1.2}.cta p{margin:0;color:#f7ddd3}.cta .btn{background:var(--paper);color:var(--coral-deep)}.cta .btn:hover{background:#fff;border-color:#fff}
    .site-footer{padding:48px 0 24px;background:#2d2926;color:#f8eee5}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px}.site-footer .brand-mark{background:var(--coral)}.site-footer .brand-text small{color:#b9a99e}.footer-links{display:flex;flex-wrap:wrap;gap:20px;color:#cdbeb3;font-size:13px}.footer-links a:hover{color:#fff}.footer-wave{height:28px;margin:32px 0 20px;border-top:1px solid #665850;background:repeating-linear-gradient(90deg,transparent 0 20px,#665850 21px 22px,transparent 23px 44px);opacity:.55}.footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#9e9087;font-size:12px}
    @media(max-width:992px){.inner-grid{gap:38px}.focus-layout{grid-template-columns:1fr}.focus-index{position:static}.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(max-width:768px){.container{width:min(calc(100% - 40px),var(--max))}.desktop-nav,.nav-actions>.btn{display:none}.menu-toggle{display:block}.mobile-nav{padding:14px 0 20px;border-top:1px solid var(--line)}.mobile-nav.open{display:grid;gap:5px}.mobile-nav .lang-switch{width:max-content;margin-top:10px}.inner-hero{padding:58px 0 48px}.inner-grid{grid-template-columns:1fr}.orbit{min-height:280px}.compare-grid{grid-template-columns:1fr}.cta{align-items:flex-start;flex-direction:column}}
    @media(max-width:520px){.brand{min-width:0}.brand-text{font-size:14px}.brand-text small{font-size:8px}.inner-hero h1{font-size:43px}.lead{font-size:16px}.metrics{grid-template-columns:1fr}.metric{border-right:0!important;border-bottom:1px solid var(--line)}.metric:last-child{border-bottom:0}.group-card,.group-card.large{padding:23px}.group-top{align-items:flex-start;flex-direction:column;gap:3px}.footer-top,.footer-bottom{align-items:flex-start;flex-direction:column}.footer-links{gap:12px 18px}}

/* roulang page: category1 */
:root{
 --bg:#f7f0e7;--paper:#fffaf4;--paper-strong:#fffdf9;--ink:#282421;
 --muted:#716861;--soft:#a19890;--coral:#c9664f;--coral-deep:#a84b3b;
 --sage:#79958a;--sage-pale:#e5eee8;--sand:#ead8c6;--line:#dfd2c5;
 --shadow:0 18px 50px rgba(76,53,37,.09);--shadow-soft:0 8px 24px rgba(76,53,37,.07);
 --r-sm:10px;--r-md:18px;--r-lg:30px;--max:1220px;--gap:clamp(64px,8vw,116px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img,svg{display:block;max-width:100%}
.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,240,231,.94);border-bottom:1px solid transparent;backdrop-filter:blur(14px);transition:.25s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 6px 24px rgba(70,48,33,.06)}
.nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:250px}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:var(--paper);display:grid;place-items:center;font-weight:900;letter-spacing:-.08em}
.brand-text{font-size:16px;line-height:1.2;font-weight:850;letter-spacing:-.03em}
.brand-text small{display:block;color:var(--soft);font-size:9px;letter-spacing:.16em;margin-top:3px}
.desktop-nav{display:flex;align-items:center;gap:7px}
.nav-link{position:relative;padding:9px 13px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}
.nav-link:hover,.nav-link:focus-visible,.nav-link.active{color:var(--ink);background:#efe3d7}
.nav-link.active::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;background:var(--coral);border-radius:2px}
.nav-actions{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;gap:3px;border:1px solid var(--line);border-radius:999px;padding:3px;color:var(--soft);font-size:12px}
.lang-switch span{padding:4px 8px;border-radius:999px}
.lang-switch .current{color:var(--ink);background:var(--paper);font-weight:700}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 18px;border:1px solid transparent;border-radius:999px;font-size:14px;font-weight:750;transition:transform .2s,background .2s,color .2s,border-color .2s,box-shadow .2s}
.btn-primary{color:var(--paper);background:var(--coral);box-shadow:0 8px 18px rgba(201,102,79,.18)}
.btn-primary:hover{background:var(--coral-deep);transform:translateY(-2px)}
.btn-secondary{color:var(--ink);border-color:var(--line);background:transparent}
.btn-secondary:hover{background:var(--paper);border-color:var(--coral);transform:translateY(-2px)}
.btn:focus-visible,.nav-link:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(201,102,79,.28);outline-offset:3px}
.btn:active{transform:translateY(0)}
.menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:8px 11px;color:var(--ink)}
.mobile-nav{display:none}
.hero{position:relative;overflow:hidden;padding:82px 0 70px;background:var(--bg)}
.hero:before{content:"";position:absolute;width:440px;height:280px;right:-110px;top:-90px;background:#ecd7c3;border-radius:48% 52% 38% 62%;transform:rotate(-12deg);opacity:.72}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:72px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--coral-deep);font-size:12px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}
.eyebrow:before{content:"";width:27px;height:1px;background:var(--coral)}
.hero h1{max-width:700px;margin:18px 0 20px;font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.07em;font-weight:900}
.hero-copy{max-width:640px;color:var(--muted);font-size:18px;line-height:1.9}
.hero-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-note{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;color:var(--soft);font-size:12px}
.hero-note strong{color:var(--ink);font-size:18px;margin-right:5px}
.index-stage{position:relative;min-height:360px;padding:30px;border-radius:var(--r-lg);background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow)}
.stage-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}
.stage-status{display:inline-flex;align-items:center;gap:7px;color:var(--sage)}
.stage-status:before{content:"";width:7px;height:7px;background:var(--sage);border-radius:50%}
.index-stage h2{margin:42px 0 8px;font-size:28px;letter-spacing:-.04em}
.stage-desc{margin:0;color:var(--muted);font-size:14px}
.axis{display:flex;align-items:end;gap:8px;height:112px;margin:30px 0 22px;padding:0 8px;border-bottom:1px solid var(--line)}
.axis i{display:block;flex:1;border-radius:8px 8px 0 0;background:var(--coral);opacity:.82}
.axis i:nth-child(1){height:34%}.axis i:nth-child(2){height:60%;background:var(--sage)}.axis i:nth-child(3){height:48%}.axis i:nth-child(4){height:82%;background:var(--sage)}.axis i:nth-child(5){height:66%}.axis i:nth-child(6){height:94%;background:var(--coral-deep)}.axis i:nth-child(7){height:72%}
.stage-legend{display:flex;justify-content:space-between;color:var(--soft);font-size:12px}
.stage-legend b{color:var(--ink);font-size:24px}
.section{padding-block:var(--gap)}
.section-head{max-width:700px;margin-bottom:38px}
.section-head h2{margin:12px 0;font-size:clamp(30px,4vw,50px);line-height:1.18;letter-spacing:-.045em;font-weight:800}
.section-head p{margin:0;color:var(--muted);max-width:650px}
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:30px;padding:12px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,250,244,.62)}
.filter-label{padding:0 10px;color:var(--soft);font-size:13px}
.filter-chip{border:1px solid transparent;border-radius:999px;background:transparent;padding:7px 13px;color:var(--muted);font-size:13px;transition:.2s}
.filter-chip:hover,.filter-chip.active{background:var(--sage-pale);color:var(--ink);border-color:#c8ddd1}
.filter-chip.active{font-weight:750}
.index-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(270px,.65fr);gap:28px;align-items:start}
.index-list{display:grid;gap:12px}
.index-item{display:grid;grid-template-columns:58px 1fr auto;gap:20px;align-items:center;padding:22px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);transition:.22s}
.index-item:hover{border-color:var(--coral);box-shadow:var(--shadow-soft);transform:translateX(4px)}
.item-number{color:var(--coral);font-size:22px;font-weight:900;letter-spacing:-.05em}
.item-title{margin:0 0 4px;font-size:19px;font-weight:800;letter-spacing:-.025em}
.item-desc{margin:0;color:var(--muted);font-size:13px}
.tag{display:inline-flex;align-items:center;border-radius:999px;padding:4px 9px;background:var(--sage-pale);color:#58776b;font-size:11px;font-weight:750}
.item-meta{display:flex;align-items:center;gap:8px;margin-top:8px;color:var(--soft);font-size:11px}
.item-action{color:var(--coral-deep);font-size:13px;font-weight:800;white-space:nowrap}
.side-card{padding:25px;border-radius:var(--r-lg);background:var(--ink);color:var(--paper);box-shadow:var(--shadow)}
.side-card h3{margin:0 0 12px;font-size:24px;line-height:1.3}
.side-card p{margin:0;color:#cfc3b9;font-size:14px}
.side-list{margin:24px 0 0;padding:0;list-style:none}
.side-list li{display:flex;justify-content:space-between;gap:14px;padding:13px 0;border-top:1px solid rgba(255,250,244,.16);font-size:13px}
.side-list span:last-child{color:#e8a18d}
.timeline-section{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.timeline-copy h2{margin:12px 0 16px;font-size:clamp(30px,4vw,48px);line-height:1.18;letter-spacing:-.05em}
.timeline-copy p{color:var(--muted);max-width:420px}
.rail{position:relative;padding-left:34px}
.rail:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:var(--line)}
.rail-item{position:relative;padding:0 0 30px}
.rail-item:before{content:"";position:absolute;left:-31px;top:9px;width:14px;height:14px;border:3px solid var(--coral);background:var(--paper);border-radius:50%}
.rail-item h3{margin:0 0 5px;font-size:19px}
.rail-item p{margin:0;color:var(--muted);font-size:14px}
.compare{display:grid;gap:14px}
.compare-row{display:grid;grid-template-columns:150px 1fr 1fr;gap:18px;align-items:center;padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper)}
.compare-name{font-weight:800}
.compare-side{color:var(--muted);font-size:13px}
.compare-side strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}
.meter{height:7px;border-radius:999px;background:#eadfd5;overflow:hidden}
.meter span{display:block;height:100%;border-radius:inherit;background:var(--coral)}
.meter.sage span{background:var(--sage)}
.faq-wrap{max-width:880px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;justify-content:space-between;gap:22px;align-items:center;padding:22px 4px;cursor:pointer;font-weight:800;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"＋";color:var(--coral);font-size:24px;font-weight:400;transition:.2s}
.faq-item[open] summary:after{content:"－";transform:rotate(180deg)}
.faq-answer{padding:0 45px 22px 4px;color:var(--muted);font-size:14px}
.cta-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:start;padding:48px;border-radius:var(--r-lg);background:#ead8c6}
.cta-panel h2{margin:12px 0;font-size:clamp(30px,4vw,48px);line-height:1.18;letter-spacing:-.05em}
.cta-panel p{color:var(--muted);max-width:430px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:750}
.field input,.field select,.field textarea{width:100%;border:1px solid #d5c2b1;border-radius:12px;background:rgba(255,253,249,.75);padding:12px 14px;color:var(--ink);transition:.2s}
.field textarea{min-height:104px;resize:vertical}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--coral)}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:18px}
.form-hint{color:var(--muted);font-size:12px}
.site-footer{padding:48px 0 24px;background:#302a26;color:var(--paper)}
.footer-top{display:flex;justify-content:space-between;align-items:center;gap:30px}
.site-footer .brand-mark{background:var(--coral)}
.site-footer .brand-text small{color:#aa9e95}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;color:#c9bdb3;font-size:13px}
.footer-links a:hover{color:#fff}
.footer-wave{height:34px;margin:34px 0 22px;border-top:1px solid rgba(255,250,244,.2);background:repeating-linear-gradient(90deg,transparent 0 8px,rgba(255,250,244,.22) 8px 10px,transparent 10px 22px);opacity:.55}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#a99d94;font-size:12px}
@media(max-width:992px){.hero-grid,.timeline-grid,.cta-panel{grid-template-columns:1fr;gap:35px}.index-layout{grid-template-columns:1fr}.desktop-nav{display:none}.menu-toggle{display:block}.mobile-nav{padding:14px 0 20px;border-top:1px solid var(--line)}.mobile-nav.open{display:grid;gap:5px}.mobile-nav .lang-switch{width:max-content;margin-top:8px}.nav-actions .btn{display:none}}
@media(max-width:768px){.container{width:min(calc(100% - 40px),var(--max))}.hero{padding:58px 0 45px}.hero h1{font-size:clamp(40px,12vw,60px)}.hero-copy{font-size:16px}.index-stage{min-height:320px}.compare-row{grid-template-columns:1fr;gap:10px}.footer-top,.footer-bottom{align-items:flex-start;flex-direction:column}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.form-foot{align-items:flex-start;flex-direction:column}.brand{min-width:0}}
@media(max-width:480px){.nav-wrap{min-height:70px}.brand-text{font-size:14px}.brand-mark{width:34px;height:34px}.hero-buttons .btn{width:100%}.index-item{grid-template-columns:42px 1fr;gap:12px;padding:18px}.item-action{grid-column:2}.filter-bar{align-items:flex-start}.filter-label{width:100%}.cta-panel{padding:28px 22px}.section{padding-block:68px}}