/* roulang page: index */
:root{
      --bg:#f4efe5;
      --bg-soft:#f8f5ee;
      --surface:#fffaf2;
      --surface-2:#f1ede4;
      --primary:#173f39;
      --primary-2:#21574e;
      --accent:#c89b58;
      --accent-2:#dfbf86;
      --text:#1c2f2b;
      --muted:#64756f;
      --line:rgba(23,63,57,.12);
      --shadow:0 16px 40px rgba(18,38,34,.10);
      --shadow-2:0 20px 48px rgba(18,38,34,.16);
      --radius:22px;
      --radius-sm:16px;
      --radius-lg:28px;
      --container:1280px;
      --gap:24px;
      --gap-lg:40px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(1000px 500px at 12% -5%, rgba(200,155,88,.12), transparent 55%),
        radial-gradient(800px 420px at 88% 10%, rgba(23,63,57,.08), transparent 60%),
        linear-gradient(180deg, #f7f2e9 0%, #f4efe5 38%, #f5f0e8 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none;transition:color .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(200,155,88,.22);color:var(--primary)}
    .container{width:min(100% - 32px,var(--container));margin:0 auto}
    .skip-link{
      position:absolute;left:-999px;top:12px;
      background:var(--primary);color:#fff;padding:10px 14px;border-radius:999px;z-index:1000
    }
    .skip-link:focus{left:16px}
    .site-header{
      position:sticky;top:0;z-index:200;
      backdrop-filter:saturate(140%) blur(14px);
      background:rgba(248,245,238,.78);
      border-bottom:1px solid rgba(23,63,57,.08);
    }
    .header-inner{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:78px;
    }
    .brand{
      display:flex;align-items:center;gap:14px;min-width:0;
    }
    .brand-mark{
      width:44px;height:44px;border-radius:14px;
      background:
        linear-gradient(145deg, rgba(23,63,57,1), rgba(33,87,78,.92));
      box-shadow:0 10px 24px rgba(23,63,57,.22);
      position:relative;flex:0 0 auto;
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;inset:10px;border-radius:12px;
      border:1px solid rgba(223,191,134,.6);
    }
    .brand-mark:after{
      inset:15px;border-radius:8px;border-color:rgba(255,255,255,.26)
    }
    .brand-text{min-width:0}
    .brand-text strong{
      display:block;font-size:1rem;line-height:1.2;letter-spacing:.01em;
      color:var(--primary);
      white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
    }
    .brand-text span{
      display:block;font-size:.86rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis
    }
    .nav-wrap{display:flex;align-items:center;gap:16px}
    .nav-toggle{
      display:none;
      width:46px;height:46px;border:1px solid rgba(23,63,57,.14);
      background:var(--surface);border-radius:14px;color:var(--primary);
      align-items:center;justify-content:center;cursor:pointer;
      box-shadow:0 8px 18px rgba(18,38,34,.06);
    }
    .nav-toggle svg{width:22px;height:22px}
    .nav{
      display:flex;align-items:center;gap:8px;
    }
    .nav a{
      padding:11px 15px;border-radius:999px;font-weight:600;
      color:var(--muted);border:1px solid transparent;
    }
    .nav a:hover,.nav a:focus-visible{
      color:var(--primary);background:rgba(255,255,255,.86);
      border-color:rgba(23,63,57,.10);box-shadow:0 10px 24px rgba(18,38,34,.06);
      outline:none
    }
    .nav a.active{
      color:var(--primary);background:rgba(23,63,57,.08);
      border-color:rgba(23,63,57,.10)
    }
    .header-cta{
      display:inline-flex;align-items:center;justify-content:center;
      gap:8px;padding:12px 18px;border-radius:999px;
      background:var(--primary);color:#fff;font-weight:700;
      box-shadow:0 12px 26px rgba(23,63,57,.22);
      border:1px solid rgba(255,255,255,.06);
      white-space:nowrap
    }
    .header-cta:hover,.header-cta:focus-visible{
      transform:translateY(-1px);background:#12312c;outline:none
    }

    .hero{
      position:relative;isolation:isolate;
      padding:34px 0 22px;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(13,31,29,.82), rgba(23,63,57,.70)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow:var(--shadow-2);
      min-height:620px;
      padding:38px;
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:28px;
      align-items:end;
      border:1px solid rgba(255,255,255,.12);
    }
    .hero-shell:before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(180deg, rgba(9,24,22,.22), rgba(9,24,22,.38)),
        radial-gradient(900px 380px at 15% 18%, rgba(223,191,134,.18), transparent 58%),
        radial-gradient(680px 300px at 85% 12%, rgba(255,255,255,.08), transparent 55%);
      pointer-events:none;
    }
    .hero-copy,.hero-visual{position:relative;z-index:1}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(255,255,255,.12);color:#f5ead3;
      border:1px solid rgba(255,255,255,.14);
      font-size:.92rem;font-weight:600;letter-spacing:.02em;
      backdrop-filter:blur(8px);
    }
    .eyebrow i{
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);box-shadow:0 0 0 6px rgba(200,155,88,.14);
      display:inline-block
    }
    h1{
      margin:18px 0 14px;
      color:#fff;
      font-size:clamp(2.35rem, 5vw, 4.7rem);
      line-height:1.04;
      letter-spacing:-.03em;
      max-width:12ch;
    }
    .hero p{
      margin:0;
      color:rgba(255,255,255,.82);
      font-size:1.05rem;
      max-width:58ch
    }
    .hero-actions{
      display:flex;flex-wrap:wrap;gap:12px;margin-top:26px
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:48px;padding:0 18px;border-radius:14px;
      font-weight:700;border:1px solid transparent;
      transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease)
    }
    .btn svg{width:18px;height:18px}
    .btn-primary{
      background:linear-gradient(135deg, var(--accent), #b88742);
      color:#fff;box-shadow:0 14px 26px rgba(200,155,88,.26)
    }
    .btn-primary:hover,.btn-primary:focus-visible{
      transform:translateY(-2px);box-shadow:0 18px 32px rgba(200,155,88,.30);outline:none
    }
    .btn-secondary{
      background:rgba(255,255,255,.08);
      color:#fff;border-color:rgba(255,255,255,.18)
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{
      background:rgba(255,255,255,.14);transform:translateY(-2px);outline:none
    }
    .hero-tags{
      display:flex;flex-wrap:wrap;gap:10px;margin-top:28px
    }
    .tag{
      display:inline-flex;align-items:center;gap:7px;
      padding:9px 13px;border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#f3ead7;font-size:.92rem
    }
    .tag b{color:#fff}
    .hero-visual{
      display:grid;gap:16px;align-self:stretch;justify-items:stretch
    }
    .visual-card{
      background:rgba(255,250,242,.94);
      border:1px solid rgba(255,255,255,.30);
      border-radius:26px;
      box-shadow:0 18px 34px rgba(15,28,25,.18);
      overflow:hidden;
    }
    .visual-card .media{
      position:relative;overflow:hidden;aspect-ratio:16/10;
      background:#ddd
    }
    .visual-card .media img{
      width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)
    }
    .visual-card:hover .media img{transform:scale(1.04)}
    .visual-card .overlay{
      position:absolute;inset:auto 16px 16px 16px;
      background:rgba(16,35,32,.72);
      color:#fff;border:1px solid rgba(255,255,255,.12);
      border-radius:18px;padding:14px 16px;backdrop-filter:blur(10px)
    }
    .overlay strong{display:block;font-size:1.02rem;margin-bottom:4px}
    .overlay span{display:block;color:rgba(255,255,255,.78);font-size:.92rem;line-height:1.55}
    .mini-grid{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px
    }
    .mini{
      background:rgba(255,250,242,.94);
      border:1px solid rgba(23,63,57,.10);
      border-radius:20px;
      padding:16px 16px 15px;
      box-shadow:0 12px 24px rgba(18,38,34,.08);
    }
    .mini .k{
      font-size:.88rem;color:var(--muted);margin-bottom:6px
    }
    .mini strong{
      display:block;color:var(--primary);font-size:1.06rem;margin-bottom:3px
    }
    .mini p{
      color:var(--muted);font-size:.92rem;margin:0;line-height:1.55
    }

    .top-strip{
      margin-top:-18px;
      position:relative;z-index:2;
      transform:translateY(-34px);
    }
    .strip{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
      background:rgba(255,250,242,.88);
      border:1px solid rgba(23,63,57,.09);
      box-shadow:var(--shadow);
      border-radius:24px;
      padding:16px;
    }
    .strip-item{
      padding:6px 10px 6px 0;
      display:flex;align-items:flex-start;gap:12px;
    }
    .strip-mark{
      width:38px;height:38px;border-radius:13px;flex:0 0 auto;
      background:linear-gradient(135deg, rgba(23,63,57,.12), rgba(200,155,88,.14));
      color:var(--primary);
      display:grid;place-items:center;font-weight:800
    }
    .strip-item strong{display:block;color:var(--primary);font-size:1rem;line-height:1.2}
    .strip-item span{display:block;color:var(--muted);font-size:.92rem;margin-top:4px;line-height:1.45}

    .section{
      padding:76px 0;
    }
    .section.compact{padding:56px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px
    }
    .section-title{
      max-width:780px
    }
    .section-title .eyebrow{background:rgba(23,63,57,.08);color:var(--primary);border-color:rgba(23,63,57,.10)}
    .section-title .eyebrow i{background:var(--accent);box-shadow:0 0 0 6px rgba(200,155,88,.12)}
    h2{
      margin:14px 0 10px;
      font-size:clamp(1.7rem, 2.6vw, 2.55rem);
      line-height:1.15;
      letter-spacing:-.02em;
      color:var(--primary)
    }
    .section-title p{
      margin:0;color:var(--muted);max-width:70ch;font-size:1.02rem
    }
    .section-link{
      color:var(--primary);
      font-weight:700;
      display:inline-flex;align-items:center;gap:8px;
      padding:10px 0;
    }
    .section-link:hover,.section-link:focus-visible{color:#0f2a26;outline:none}
    .section-link svg{width:16px;height:16px;transition:transform .25s var(--ease)}
    .section-link:hover svg{transform:translateX(2px)}

    .cap-grid{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .cap-card{
      grid-column:span 3;
      background:var(--surface);
      border:1px solid rgba(23,63,57,.10);
      border-radius:var(--radius);
      padding:22px;
      box-shadow:0 12px 26px rgba(18,38,34,.06);
      position:relative;
      overflow:hidden;
      transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
    }
    .cap-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(200,155,88,.28);
    }
    .cap-icon{
      width:52px;height:52px;border-radius:18px;
      background:linear-gradient(135deg, rgba(23,63,57,.12), rgba(200,155,88,.16));
      display:grid;place-items:center;
      color:var(--primary);margin-bottom:14px
    }
    .cap-icon svg{width:24px;height:24px}
    .cap-card h3{
      margin:0 0 10px;color:var(--primary);font-size:1.12rem;line-height:1.35
    }
    .cap-card p{
      margin:0;color:var(--muted);line-height:1.7;font-size:.98rem
    }

    .split{
      display:grid;grid-template-columns:1.02fr .98fr;gap:24px;align-items:stretch
    }
    .split-panel{
      background:var(--surface);
      border:1px solid rgba(23,63,57,.10);
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .split-media{
      min-height:100%;
      position:relative;
      background:#d9d1c2;
    }
    .split-media img{
      width:100%;height:100%;object-fit:cover;min-height:420px
    }
    .split-media .badge-box{
      position:absolute;left:18px;bottom:18px;right:18px;
      background:rgba(16,35,32,.72);
      color:#fff;border:1px solid rgba(255,255,255,.12);
      border-radius:20px;padding:16px 18px;backdrop-filter:blur(10px)
    }
    .badge-box strong{display:block;font-size:1.02rem;margin-bottom:5px}
    .badge-box span{display:block;color:rgba(255,255,255,.80);font-size:.92rem;line-height:1.6}
    .split-content{
      padding:28px;
      display:flex;flex-direction:column;justify-content:center
    }
    .split-content h3{
      margin:10px 0 12px;font-size:1.7rem;line-height:1.2;color:var(--primary)
    }
    .split-content p{margin:0;color:var(--muted);line-height:1.82}
    .bullet-list{
      list-style:none;padding:0;margin:20px 0 0;
      display:grid;gap:12px
    }
    .bullet-list li{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px 15px;border-radius:16px;
      background:rgba(23,63,57,.04);border:1px solid rgba(23,63,57,.08)
    }
    .bullet-list .dot{
      width:10px;height:10px;border-radius:50%;margin-top:8px;flex:0 0 auto;
      background:var(--accent);box-shadow:0 0 0 5px rgba(200,155,88,.12)
    }
    .bullet-list strong{display:block;color:var(--primary);margin-bottom:3px}
    .bullet-list span{display:block;color:var(--muted);line-height:1.6}

    .cards-grid{
      display:grid;grid-template-columns:repeat(12,1fr);gap:18px
    }
    .info-card{
      grid-column:span 4;
      background:var(--surface);
      border:1px solid rgba(23,63,57,.10);
      border-radius:24px;
      overflow:hidden;
      box-shadow:0 12px 26px rgba(18,38,34,.06);
      transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
      display:flex;flex-direction:column;
      min-height:100%;
    }
    .info-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(200,155,88,.26);
    }
    .info-card .cover{
      position:relative;overflow:hidden;aspect-ratio:16/10;background:#ded6ca
    }
    .info-card .cover img{
      width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)
    }
    .info-card:hover .cover img{transform:scale(1.05)}
    .info-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px}
    .meta-row{display:flex;flex-wrap:wrap;gap:8px}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:7px 11px;border-radius:999px;
      background:rgba(23,63,57,.08);
      color:var(--primary);font-size:.86rem;font-weight:700
    }
    .badge.accent{background:rgba(200,155,88,.15);color:#8a5e21}
    .info-card h3{
      margin:0;color:var(--primary);font-size:1.18rem;line-height:1.42;
      display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
    }
    .info-card p{
      margin:0;color:var(--muted);line-height:1.75;
      display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden
    }
    .card-foot{
      display:flex;align-items:center;justify-content:space-between;gap:10px;
      margin-top:auto;padding-top:4px;color:var(--muted);font-size:.92rem
    }
    .card-foot a{
      color:var(--primary);font-weight:700;display:inline-flex;align-items:center;gap:6px
    }
    .card-foot a:hover,.card-foot a:focus-visible{color:#0f2a26;outline:none}

    .trust{
      display:grid;grid-template-columns:1.08fr .92fr;gap:20px;align-items:stretch
    }
    .trust-panel{
      background:var(--surface);
      border:1px solid rgba(23,63,57,.10);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      padding:28px;
    }
    .trust-panel h3{
      margin:0 0 10px;
      color:var(--primary);
      font-size:1.55rem
    }
    .trust-panel p{margin:0;color:var(--muted);line-height:1.82}
    .trust-stats{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:22px
    }
    .stat{
      background:linear-gradient(180deg, rgba(23,63,57,.06), rgba(200,155,88,.06));
      border:1px solid rgba(23,63,57,.09);
      border-radius:20px;padding:18px
    }
    .stat strong{
      display:block;font-size:1.42rem;line-height:1.1;color:var(--primary);margin-bottom:6px
    }
    .stat span{display:block;color:var(--muted);line-height:1.6}
    .check-grid{
      display:grid;gap:12px;margin-top:20px
    }
    .check{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px 16px;border-radius:16px;
      background:rgba(23,63,57,.045);border:1px solid rgba(23,63,57,.08)
    }
    .check svg{width:20px;height:20px;flex:0 0 auto;margin-top:2px;color:var(--accent)}
    .check strong{display:block;color:var(--primary);margin-bottom:2px}
    .check span{display:block;color:var(--muted);line-height:1.6}

    .faq-wrap{
      display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start
    }
    .faq-list{
      display:grid;gap:14px
    }
    details.faq{
      background:var(--surface);
      border:1px solid rgba(23,63,57,.10);
      border-radius:20px;
      box-shadow:0 10px 22px rgba(18,38,34,.05);
      overflow:hidden;
    }
    details.faq[open]{
      border-color:rgba(200,155,88,.25);
      box-shadow:var(--shadow)
    }
    details.faq summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      color:var(--primary);font-weight:700;
      outline:none;
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq summary span{
      display:inline-flex;align-items:center;gap:10px
    }
    .qmark{
      width:30px;height:30px;border-radius:10px;flex:0 0 auto;
      display:grid;place-items:center;background:rgba(23,63,57,.08);color:var(--primary)
    }
    .faq-body{
      padding:0 20px 18px 60px;
      color:var(--muted);line-height:1.82
    }
    .faq-side{
      background:
        linear-gradient(180deg, rgba(23,63,57,.92), rgba(23,63,57,.82)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#fff;
      border-radius:var(--radius-lg);
      padding:28px;
      min-height:100%;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.10);
      display:flex;flex-direction:column;justify-content:space-between;gap:20px
    }
    .faq-side h3{
      margin:0;
      font-size:1.58rem;line-height:1.2
    }
    .faq-side p{
      margin:10px 0 0;color:rgba(255,255,255,.80);line-height:1.8
    }
    .faq-side .side-card{
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      border-radius:22px;
      padding:18px
    }
    .side-card strong{display:block;color:#fff;font-size:1.06rem;margin-bottom:6px}
    .side-card span{display:block;color:rgba(255,255,255,.76);line-height:1.65}

    .contact{
      display:grid;grid-template-columns:.96fr 1.04fr;gap:18px;align-items:stretch
    }
    .contact-panel{
      background:var(--surface);
      border:1px solid rgba(23,63,57,.10);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      padding:28px;
    }
    .contact-panel h3{
      margin:0 0 10px;color:var(--primary);font-size:1.58rem
    }
    .contact-panel p{
      margin:0;color:var(--muted);line-height:1.82
    }
    .contact-list{
      list-style:none;padding:0;margin:20px 0 0;
      display:grid;gap:12px
    }
    .contact-list li{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px 16px;border-radius:16px;
      background:rgba(23,63,57,.04);border:1px solid rgba(23,63,57,.08)
    }
    .contact-list b{display:block;color:var(--primary)}
    .contact-list span{display:block;color:var(--muted);line-height:1.6}
    .form-panel{
      background:linear-gradient(180deg, rgba(255,250,242,.98), rgba(245,239,229,.98));
      border:1px solid rgba(23,63,57,.10);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      padding:28px
    }
    .form-grid{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px
    }
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    .field label{
      font-size:.95rem;font-weight:700;color:var(--primary)
    }
    .field input,.field textarea{
      width:100%;
      border:1px solid rgba(23,63,57,.14);
      background:#fff;
      color:var(--text);
      border-radius:16px;
      padding:13px 14px;
      min-height:48px;
      outline:none;
      transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease)
    }
    .field textarea{min-height:132px;resize:vertical}
    .field input:focus,.field textarea:focus{
      border-color:rgba(200,155,88,.55);
      box-shadow:0 0 0 4px rgba(200,155,88,.14)
    }
    .form-note{
      margin-top:12px;color:var(--muted);font-size:.92rem;line-height:1.7
    }
    .form-actions{
      display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px
    }
    .small-link{
      color:var(--primary);font-weight:700
    }

    .site-footer{
      margin-top:10px;
      padding:34px 0 28px;
      background:linear-gradient(180deg, rgba(23,63,57,.98), rgba(15,39,35,.99));
      color:#fff;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;grid-template-columns:1.1fr .9fr .7fr;gap:20px;align-items:start
    }
    .footer-brand strong{
      display:block;font-size:1.22rem;line-height:1.2;margin-bottom:10px
    }
    .footer-brand p{
      margin:0;color:rgba(255,255,255,.76);line-height:1.8;max-width:44ch
    }
    .footer-col h4{
      margin:0 0 14px;font-size:1rem
    }
    .footer-links{
      list-style:none;padding:0;margin:0;display:grid;gap:10px
    }
    .footer-links a{
      color:rgba(255,255,255,.78)
    }
    .footer-links a:hover,.footer-links a:focus-visible{
      color:#fff;outline:none
    }
    .footer-note{
      margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.10);
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      color:rgba(255,255,255,.72);font-size:.92rem;flex-wrap:wrap
    }
    .back-top{
      display:inline-flex;align-items:center;gap:8px;
      color:#fff;font-weight:700
    }
    .back-top:hover,.back-top:focus-visible{color:var(--accent-2);outline:none}

    @media (max-width: 1180px){
      .hero-shell{grid-template-columns:1fr;min-height:auto}
      .hero-visual{grid-template-columns:1fr 1fr}
      .cap-card{grid-column:span 6}
      .info-card{grid-column:span 6}
      .split,.trust,.faq-wrap,.contact{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 920px){
      .nav-toggle{display:inline-flex}
      .header-cta{display:none}
      .nav{
        position:absolute;left:16px;right:16px;top:78px;
        flex-direction:column;align-items:stretch;gap:8px;
        background:rgba(248,245,238,.98);
        border:1px solid rgba(23,63,57,.10);
        border-radius:22px;padding:12px;
        box-shadow:var(--shadow-2);
        transform:translateY(-12px);
        opacity:0;pointer-events:none;visibility:hidden;
      }
      .nav.open{
        transform:translateY(0);
        opacity:1;pointer-events:auto;visibility:visible
      }
      .nav a{border-radius:14px}
      .strip{grid-template-columns:1fr 1fr}
      .cap-card{grid-column:span 6}
      .hero-visual{grid-template-columns:1fr}
      .mini-grid{grid-template-columns:1fr 1fr}
      .cards-grid{grid-template-columns:1fr 1fr}
      .info-card{grid-column:auto}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width: 700px){
      .hero{padding:18px 0 8px}
      .hero-shell{padding:24px;border-radius:24px}
      h1{max-width:none}
      .hero p{font-size:1rem}
      .top-strip{transform:none;margin-top:18px}
      .strip,.cap-grid,.cards-grid,.mini-grid,.trust-stats,.form-grid,.contact-list{grid-template-columns:1fr}
      .cap-card{grid-column:auto}
      .section{padding:56px 0}
      .section-head{flex-direction:column;align-items:start}
      .split-content,.contact-panel,.form-panel,.trust-panel,.faq-side{padding:22px}
      .visual-card .overlay{left:12px;right:12px;bottom:12px;padding:12px}
      .faq-body{padding-left:20px}
      .footer-note{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 520px){
      .container{width:min(100% - 22px,var(--container))}
      .header-inner{min-height:72px}
      .brand-mark{width:40px;height:40px;border-radius:13px}
      .brand-text strong{font-size:.96rem}
      .brand-text span{font-size:.8rem}
      .btn,.header-cta{width:100%}
      .hero-actions{flex-direction:column}
      .tag{width:100%;justify-content:space-between}
      .cap-card,.info-card,.trust-panel,.form-panel,.faq-side{border-radius:20px}
      .section{padding:48px 0}
      .split-media img{min-height:290px}
      .faq-side h3,.contact-panel h3,.split-content h3{font-size:1.34rem}
    }
    .sr-only{
      position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0
    }
    .focus-ring:focus-visible{
      outline:3px solid rgba(200,155,88,.42);
      outline-offset:3px
    }

/* roulang page: category1 */
:root {
      --ink: #173631;
      --ink-deep: #102a27;
      --teal: #1d5a50;
      --teal-light: #e8f1ed;
      --copper: #bd8055;
      --copper-dark: #9e6540;
      --paper: #f7f8f4;
      --mist: #edf1ed;
      --white: #ffffff;
      --muted: #63736e;
      --line: #d9e2dc;
      --shadow: 0 18px 42px rgba(23, 54, 49, .09);
      --shadow-soft: 0 8px 24px rgba(23, 54, 49, .07);
      --radius: 18px;
      --radius-small: 10px;
      --container: 1240px;
      --ease: 220ms ease;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    body.menu-open { overflow: hidden; }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input, textarea { font: inherit; }
    button { cursor: pointer; }
    p, h1, h2, h3, h4, ul, ol { margin-top: 0; }
    h1, h2, h3, h4 { line-height: 1.25; letter-spacing: 0; }
    h1, h2, h3, h4, strong { color: var(--ink-deep); }
    .container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
    .focus-ring:focus-visible {
      outline: 3px solid rgba(189, 128, 85, .55);
      outline-offset: 4px;
      border-radius: 5px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(247, 248, 244, .94);
      border-bottom: 1px solid rgba(217, 226, 220, .88);
      backdrop-filter: blur(14px);
    }
    .header-inner {
      min-height: 82px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
    }
    .brand { display: inline-flex; align-items: center; gap: 13px; min-width: 0; }
    .brand-mark {
      width: 38px;
      height: 38px;
      flex: 0 0 auto;
      border-radius: 11px 11px 11px 3px;
      background: var(--copper);
      position: relative;
      box-shadow: 5px 5px 0 var(--ink);
    }
    .brand-mark::after {
      content: "";
      position: absolute;
      width: 12px;
      height: 12px;
      border: 2px solid var(--white);
      border-radius: 50%;
      left: 11px;
      top: 10px;
    }
    .brand-text { display: grid; gap: 1px; min-width: 0; }
    .brand-text strong { font-size: 15px; white-space: nowrap; }
    .brand-text span { color: var(--muted); font-size: 11px; white-space: nowrap; }
    .nav-wrap { display: flex; align-items: center; gap: 23px; }
    .nav { display: flex; align-items: center; gap: 7px; }
    .nav a {
      position: relative;
      padding: 9px 13px;
      color: var(--muted);
      font-size: 14px;
      transition: color var(--ease);
    }
    .nav a::after {
      content: "";
      position: absolute;
      left: 13px;
      right: 13px;
      bottom: 3px;
      height: 2px;
      background: var(--copper);
      transform: scaleX(0);
      transition: transform var(--ease);
    }
    .nav a:hover, .nav a.active { color: var(--ink-deep); }
    .nav a.active::after, .nav a:hover::after { transform: scaleX(1); }
    .header-cta, .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      border: 1px solid transparent;
      border-radius: 9px;
      font-weight: 700;
      transition: transform var(--ease), background var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .header-cta {
      padding: 10px 15px;
      color: var(--white);
      background: var(--ink);
      font-size: 13px;
    }
    .header-cta svg, .button svg, .back-top svg { width: 17px; height: 17px; }
    .header-cta:hover, .button:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); }
    .header-cta:hover { background: var(--teal); }
    .nav-toggle { display: none; border: 0; color: var(--ink); background: transparent; padding: 8px; }
    .nav-toggle svg { width: 24px; height: 24px; }

    .page-banner {
      min-height: 430px;
      position: relative;
      display: flex;
      align-items: end;
      overflow: hidden;
      color: var(--white);
      background: var(--ink-deep) url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
    }
    .page-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(11, 35, 31, .93) 0%, rgba(15, 50, 44, .7) 56%, rgba(15, 42, 38, .42) 100%);
    }
    .banner-content { position: relative; z-index: 1; width: 100%; padding: 74px 0 70px; }
    .breadcrumb {
      display: flex;
      gap: 10px;
      align-items: center;
      color: rgba(255,255,255,.68);
      font-size: 13px;
      margin-bottom: 24px;
    }
    .breadcrumb a:hover { color: var(--white); }
    .breadcrumb span:last-child { color: #f0d2bb; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: #efc9ad;
      font-size: 12px;
      letter-spacing: 1.5px;
      margin-bottom: 18px;
    }
    .eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--copper); }
    .page-banner h1 {
      max-width: 760px;
      margin-bottom: 18px;
      color: var(--white);
      font-size: clamp(38px, 5vw, 66px);
      font-weight: 800;
    }
    .page-banner p {
      max-width: 650px;
      margin-bottom: 0;
      color: rgba(255,255,255,.82);
      font-size: 17px;
    }

    .section { padding: 88px 0; }
    .section.mist { background: var(--mist); }
    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 30px;
      margin-bottom: 38px;
    }
    .section-kicker {
      margin-bottom: 11px;
      color: var(--copper-dark);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 1.6px;
    }
    .section-head h2 { margin-bottom: 0; font-size: clamp(28px, 3vw, 42px); }
    .section-head p { max-width: 520px; margin: 0; color: var(--muted); }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      padding: 13px;
      margin-bottom: 42px;
      border: 1px solid var(--line);
      border-radius: var(--radius-small);
      background: var(--white);
      box-shadow: var(--shadow-soft);
    }
    .filter-label { padding: 6px 12px; color: var(--ink-deep); font-size: 13px; font-weight: 800; }
    .filter-tag {
      padding: 7px 14px;
      border: 1px solid transparent;
      border-radius: 7px;
      color: var(--muted);
      background: var(--paper);
      font-size: 13px;
      transition: all var(--ease);
    }
    .filter-tag:hover, .filter-tag.active {
      color: var(--white);
      background: var(--teal);
      border-color: var(--teal);
    }

    .service-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) minmax(280px, .7fr);
      gap: 54px;
      align-items: start;
    }
    .service-list { display: grid; gap: 18px; }
    .service-card {
      display: grid;
      grid-template-columns: 190px 1fr;
      min-height: 206px;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      box-shadow: 0 3px 0 rgba(23,54,49,.02);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(189,128,85,.65);
      box-shadow: var(--shadow);
    }
    .service-card img { width: 100%; height: 100%; min-height: 206px; object-fit: cover; transition: transform 450ms ease; }
    .service-card:hover img { transform: scale(1.04); }
    .service-copy { padding: 25px 28px; }
    .card-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 13px; }
    .tag {
      display: inline-flex;
      padding: 4px 9px;
      border-radius: 5px;
      color: var(--teal);
      background: var(--teal-light);
      font-size: 11px;
      font-weight: 800;
    }
    .meta-text { color: #88938f; font-size: 12px; }
    .service-copy h3 { margin-bottom: 10px; font-size: 22px; }
    .service-copy h3 a { transition: color var(--ease); }
    .service-card:hover h3 a { color: var(--copper-dark); }
    .service-copy p { margin-bottom: 15px; color: var(--muted); font-size: 14px; line-height: 1.7; }
    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--teal);
      font-size: 13px;
      font-weight: 800;
    }
    .text-link span { transition: transform var(--ease); }
    .text-link:hover { color: var(--copper-dark); }
    .text-link:hover span { transform: translateX(4px); }

    .side-panel {
      position: sticky;
      top: 110px;
      padding: 28px;
      border-top: 3px solid var(--copper);
      background: var(--ink);
      color: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }
    .side-panel h3 { margin-bottom: 12px; color: var(--white); font-size: 23px; }
    .side-panel > p { color: rgba(255,255,255,.7); font-size: 14px; }
    .side-links { list-style: none; padding: 13px 0 0; margin: 0; border-top: 1px solid rgba(255,255,255,.15); }
    .side-links li { border-bottom: 1px solid rgba(255,255,255,.12); }
    .side-links a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      color: rgba(255,255,255,.82);
      font-size: 14px;
      transition: color var(--ease), padding var(--ease);
    }
    .side-links a:hover { padding-left: 5px; color: #efc9ad; }
    .side-links a span { color: var(--copper); }

    .intro-band { background: var(--white); }
    .intro-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 72px;
      align-items: center;
    }
    .intro-image { position: relative; }
    .intro-image img { width: 100%; aspect-ratio: 1.18 / 1; object-fit: cover; border-radius: var(--radius); }
    .image-note {
      position: absolute;
      right: -20px;
      bottom: 24px;
      width: 170px;
      padding: 18px;
      border-left: 3px solid var(--copper);
      color: var(--white);
      background: var(--ink);
      box-shadow: var(--shadow);
    }
    .image-note strong { display: block; color: var(--white); font-size: 25px; line-height: 1.2; }
    .image-note span { color: rgba(255,255,255,.65); font-size: 12px; }
    .intro-copy h2 { margin-bottom: 18px; font-size: clamp(29px, 3vw, 43px); }
    .intro-copy > p { color: var(--muted); }
    .check-list { list-style: none; padding: 8px 0 0; margin: 0; display: grid; gap: 13px; }
    .check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink); font-weight: 700; }
    .check-list li::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 23px;
      height: 23px;
      flex: 0 0 auto;
      border-radius: 50%;
      color: var(--white);
      background: var(--copper);
      font-size: 13px;
      line-height: 1;
      margin-top: 3px;
    }

    .faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; }
    .faq-intro h2 { margin-bottom: 15px; font-size: 37px; }
    .faq-intro p { color: var(--muted); }
    .faq-list { display: grid; gap: 11px; }
    .faq-item { border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--white); }
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 19px 22px;
      color: var(--ink-deep);
      font-weight: 800;
      cursor: pointer;
      list-style: none;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; color: var(--copper-dark); font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { padding: 0 22px 20px; color: var(--muted); font-size: 14px; line-height: 1.8; }

    .contact-section { padding: 86px 0; background: var(--teal); }
    .contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
    .contact-copy .section-kicker { color: #efc9ad; }
    .contact-copy h2 { margin-bottom: 17px; color: var(--white); font-size: 42px; }
    .contact-copy p { color: rgba(255,255,255,.76); }
    .contact-points { display: grid; gap: 14px; margin-top: 28px; }
    .contact-points div { display: flex; gap: 13px; color: rgba(255,255,255,.86); font-size: 14px; }
    .contact-points b { color: #efc9ad; min-width: 68px; }
    .contact-form {
      padding: 30px;
      border-radius: var(--radius);
      background: var(--white);
      box-shadow: var(--shadow);
    }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: grid; gap: 7px; margin-bottom: 16px; }
    .field label { color: var(--ink-deep); font-size: 13px; font-weight: 800; }
    .field input, .field textarea, .field select {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 7px;
      outline: 0;
      color: var(--ink);
      background: var(--paper);
      padding: 11px 13px;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }
    .field textarea { min-height: 105px; resize: vertical; }
    .field input:focus, .field textarea:focus, .field select:focus {
      border-color: var(--copper);
      background: var(--white);
      box-shadow: 0 0 0 3px rgba(189,128,85,.14);
    }
    .button-primary { padding: 12px 20px; color: var(--white); background: var(--copper-dark); }
    .button-primary:hover { background: var(--ink); }
    .form-message { min-height: 24px; margin: 10px 0 0; color: var(--teal); font-size: 13px; }

    .site-footer { padding: 54px 0 26px; color: rgba(255,255,255,.69); background: var(--ink-deep); }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 60px; padding-bottom: 42px; }
    .footer-brand strong { display: block; margin-bottom: 12px; color: var(--white); font-size: 18px; }
    .footer-brand p { max-width: 390px; margin: 0; font-size: 13px; line-height: 1.8; }
    .footer-col h4 { margin-bottom: 14px; color: #efc9ad; font-size: 14px; }
    .footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 13px; }
    .footer-links a { transition: color var(--ease), padding var(--ease); }
    .footer-links a:hover { padding-left: 4px; color: var(--white); }
    .footer-note {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.14);
      font-size: 12px;
    }
    .back-top { display: inline-flex; align-items: center; gap: 8px; color: #efc9ad; transition: color var(--ease); }
    .back-top:hover { color: var(--white); }

    @media (max-width: 1024px) {
      .service-layout, .intro-grid, .faq-grid, .contact-grid { gap: 38px; }
      .service-card { grid-template-columns: 155px 1fr; }
      .footer-grid { gap: 30px; }
    }
    @media (max-width: 768px) {
      .container { width: min(var(--container), calc(100% - 34px)); }
      .header-inner { min-height: 72px; }
      .nav-toggle { display: inline-flex; }
      .nav-wrap { gap: 8px; }
      .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 17px;
        right: 17px;
        padding: 10px;
        border: 1px solid var(--line);
        border-radius: var(--radius-small);
        background: var(--white);
        box-shadow: var(--shadow);
      }
      .nav.is-open { display: grid; }
      .nav a { padding: 12px; }
      .nav a::after { left: 12px; right: auto; width: 25px; bottom: 6px; }
      .header-cta { padding: 9px 11px; }
      .header-cta svg { display: none; }
      .page-banner { min-height: 385px; }
      .banner-content { padding: 58px 0 54px; }
      .section { padding: 64px 0; }
      .section-head, .service-layout, .intro-grid, .faq-grid, .contact-grid { display: grid; grid-template-columns: 1fr; }
      .section-head { gap: 14px; margin-bottom: 28px; }
      .service-card { grid-template-columns: 145px 1fr; }
      .side-panel { position: static; }
      .intro-image { max-width: 610px; }
      .image-note { right: 15px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px; }
      .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 520px) {
      .brand-text strong { font-size: 13px; }
      .brand-text span { display: none; }
      .brand-mark { width: 33px; height: 33px; }
      .header-cta { display: none; }
      .page-banner h1 { font-size: 38px; }
      .page-banner p { font-size: 15px; }
      .filter-bar { align-items: stretch; }
      .filter-label { width: 100%; padding: 4px 8px; }
      .service-card { display: block; }
      .service-card img { height: 190px; min-height: 0; }
      .service-copy { padding: 21px; }
      .intro-copy h2, .contact-copy h2 { font-size: 32px; }
      .form-row { grid-template-columns: 1fr; gap: 0; }
      .contact-form { padding: 22px; }
      .footer-grid { grid-template-columns: 1fr; gap: 27px; }
      .footer-note { align-items: flex-start; flex-direction: column; }
    }