/* roulang page: index */
:root{
      --bg:#f6f9fe;
      --bg-soft:#fbfdff;
      --panel:#ffffff;
      --panel-2:#f3f8ff;
      --line:#e5eaf3;
      --line-strong:#cfe0ff;
      --text:#1f2937;
      --muted:#6b7280;
      --brand:#2563eb;
      --brand-2:#1d4ed8;
      --brand-soft:#e0f2fe;
      --brand-soft-2:#eff6ff;
      --accent:#f59e0b;
      --success:#10b981;
      --danger:#ef4444;
      --shadow:0 18px 48px rgba(37,99,235,.08);
      --shadow-hover:0 22px 60px rgba(37,99,235,.14);
      --r-lg:24px;
      --r-md:18px;
      --r-sm:14px;
      --sidebar-w:240px;
      --header-h:72px;
      --container:1180px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC, Microsoft YaHei, Noto Sans SC, Helvetica Neue, Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 0%, rgba(96,165,250,.12), transparent 32%),
        radial-gradient(circle at 90% 20%, rgba(56,189,248,.10), transparent 28%),
        linear-gradient(180deg, #fafdff 0%, #f6f9fe 35%, #f7fbff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
      padding-left:var(--sidebar-w);
      min-height:100vh;
    }
    ::selection{background:#cfe2ff;color:#0f172a}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .skip-link{
      position:absolute;left:-999px;top:12px;
      background:#fff;color:var(--brand);
      border:1px solid var(--line-strong);
      border-radius:999px;padding:10px 16px;
      z-index:1000
    }
    .skip-link:focus{left:12px}
    .sidebar{
      position:fixed;left:0;top:0;bottom:0;
      width:var(--sidebar-w);
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(14px);
      border-right:1px solid rgba(229,234,243,.9);
      z-index:40;
      display:flex;flex-direction:column;
      padding:22px 18px 18px;
      box-shadow:12px 0 32px rgba(37,99,235,.04);
    }
    .brand{
      display:flex;align-items:center;gap:12px;
      padding:8px 8px 18px;
    }
    .brand-mark{
      width:44px;height:44px;border-radius:14px;
      background:linear-gradient(145deg, #3b82f6, #1d4ed8);
      display:grid;place-items:center;
      box-shadow:0 14px 26px rgba(37,99,235,.18);
      position:relative;overflow:hidden;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      background:rgba(255,255,255,.9);
      border-radius:999px;
    }
    .brand-mark::before{
      width:18px;height:3px;left:11px;top:14px;
      box-shadow:0 8px 0 rgba(255,255,255,.88), 0 16px 0 rgba(255,255,255,.82);
    }
    .brand-mark::after{
      width:6px;height:18px;right:11px;top:13px;
    }
    .brand-text{min-width:0}
    .brand-text strong{
      display:block;font-size:18px;line-height:1.2;
      letter-spacing:.2px;color:#0f172a
    }
    .brand-text span{
      display:block;font-size:12px;color:var(--muted);margin-top:4px
    }
    .nav{
      display:flex;flex-direction:column;gap:8px;
      margin-top:6px;
      padding:8px 4px;
      flex:1;
    }
    .nav-section-title{
      font-size:12px;color:#94a3b8;
      letter-spacing:.12em;text-transform:uppercase;
      padding:10px 12px 4px;
    }
    .nav a{
      display:flex;align-items:center;gap:12px;
      padding:13px 14px;
      border-radius:16px;
      color:#334155;
      border:1px solid transparent;
      transition:transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
      position:relative;
    }
    .nav a .nav-ico{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:var(--brand-soft-2);
      color:var(--brand);
      flex:none;
      border:1px solid rgba(37,99,235,.08);
    }
    .nav a .nav-ico svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2}
    .nav a:hover{
      background:var(--brand-soft-2);
      color:var(--brand-2);
      transform:translateX(2px);
      box-shadow:0 10px 24px rgba(37,99,235,.06);
    }
    .nav a.active{
      background:linear-gradient(90deg, #eaf2ff, #f4f8ff);
      color:var(--brand-2);
      border-color:#d8e5ff;
      box-shadow:inset 3px 0 0 var(--brand);
    }
    .nav a.active .nav-ico{
      background:#dbeafe;color:#1d4ed8
    }
    .nav a small{
      display:block;color:#94a3b8;font-size:12px;line-height:1.35
    }
    .sidebar-bottom{
      padding:14px 8px 8px;
      border-top:1px solid var(--line);
      display:grid;
      gap:12px;
    }
    .sidebar-bottom .mini-links{
      display:flex;flex-wrap:wrap;gap:8px
    }
    .mini-link{
      padding:8px 12px;
      border-radius:999px;
      background:#f5f9ff;
      color:#334155;
      border:1px solid var(--line);
      font-size:12px;
      transition:.2s var(--ease);
    }
    .mini-link:hover{border-color:#cfe0ff;background:#eef5ff;color:var(--brand-2)}
    .copyright{
      font-size:12px;color:#94a3b8;line-height:1.6
    }
    .mobile-topbar{
      display:none;
      position:fixed;left:0;right:0;top:0;height:var(--header-h);
      z-index:55;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(229,234,243,.95);
      padding:0 16px;
      align-items:center;
      justify-content:space-between;
    }
    .mobile-topbar .mobile-brand{
      display:flex;align-items:center;gap:10px;min-width:0
    }
    .mobile-topbar .mobile-brand strong{
      font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis
    }
    .menu-btn{
      width:44px;height:44px;border:none;border-radius:14px;
      background:#f4f8ff;color:var(--brand);
      display:grid;place-items:center;
      border:1px solid var(--line);
      transition:.2s var(--ease)
    }
    .menu-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
    .menu-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}
    .drawer{
      position:fixed;left:0;top:0;bottom:0;
      width:min(86vw, 320px);
      background:#fff;
      z-index:70;
      transform:translateX(-102%);
      transition:transform .28s var(--ease);
      box-shadow:28px 0 60px rgba(15,23,42,.12);
      display:flex;flex-direction:column;
      padding:16px;
    }
    .drawer.open{transform:translateX(0)}
    .drawer-head{
      display:flex;align-items:center;justify-content:space-between;
      gap:12px;padding:6px 4px 14px;
      border-bottom:1px solid var(--line)
    }
    .drawer-close{
      width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
      background:#f8fbff;color:#334155;
    }
    .drawer-nav{display:flex;flex-direction:column;gap:8px;padding:14px 0}
    .drawer-nav a{display:flex;align-items:center;gap:12px;padding:14px;border-radius:16px}
    .drawer-nav a.active{background:var(--brand-soft-2);color:var(--brand-2)}
    .drawer-meta{
      margin-top:auto;
      padding-top:14px;border-top:1px solid var(--line);
      font-size:12px;color:var(--muted);line-height:1.7
    }
    .overlay{
      position:fixed;inset:0;background:rgba(15,23,42,.3);
      z-index:60;opacity:0;pointer-events:none;
      transition:opacity .22s var(--ease);
    }
    .overlay.show{opacity:1;pointer-events:auto}
    .page{
      width:100%;
    }
    .container{
      width:min(var(--container), calc(100% - 48px));
      margin:0 auto;
    }
    .section{
      padding:86px 0;
      position:relative;
    }
    .section + .section{padding-top:0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:linear-gradient(90deg, #eff6ff, #f8fbff);
      border:1px solid #dbeafe;
      color:var(--brand-2);font-size:12px;font-weight:700;
      letter-spacing:.04em;
      box-shadow:0 8px 24px rgba(37,99,235,.05);
    }
    .eyebrow::before{
      content:"";width:8px;height:8px;border-radius:999px;background:var(--accent);
      box-shadow:0 0 0 4px rgba(245,158,11,.14);
    }
    h1,h2,h3,p{margin:0}
    h1{
      font-size:clamp(34px, 5vw, 56px);
      line-height:1.1;
      letter-spacing:-.03em;
      color:#0f172a;
      margin-top:18px;
    }
    h2{
      font-size:clamp(26px, 3vw, 36px);
      line-height:1.18;
      letter-spacing:-.02em;
      color:#0f172a;
    }
    h3{
      font-size:22px;
      line-height:1.25;
      color:#0f172a;
    }
    .section-lead{
      margin-top:16px;
      max-width:860px;
      color:#475569;
      font-size:16px;
      line-height:1.85;
    }
    .hero{
      padding-top:34px;
    }
    .hero-shell{
      background:
        radial-gradient(circle at 80% 20%, rgba(96,165,250,.16), transparent 28%),
        radial-gradient(circle at 12% 12%, rgba(56,189,248,.12), transparent 24%),
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(243,248,255,.92));
      border:1px solid rgba(207,224,255,.92);
      border-radius:32px;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-shell::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg, rgba(37,99,235,.05) 1px, transparent 1px),
        linear-gradient(180deg, rgba(37,99,235,.05) 1px, transparent 1px);
      background-size:38px 38px;
      mask:linear-gradient(180deg, rgba(0,0,0,.24), rgba(0,0,0,.02) 56%, transparent 100%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:28px;
      padding:40px;
      align-items:center;
    }
    .hero-copy .section-lead{max-width:760px}
    .hero-actions{
      display:flex;flex-wrap:wrap;gap:12px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;
      min-height:48px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:15px;
      font-weight:700;
      transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
      white-space:nowrap;
    }
    .btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
    .btn-primary{
      background:linear-gradient(180deg, var(--brand), var(--brand-2));
      color:#fff;
      box-shadow:0 14px 28px rgba(37,99,235,.18);
    }
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(37,99,235,.24)}
    .btn-secondary{
      background:#fff;
      color:var(--brand-2);
      border-color:#cfe0ff;
      box-shadow:0 10px 24px rgba(37,99,235,.06);
    }
    .btn-secondary:hover{transform:translateY(-1px);background:#eff6ff}
    .btn-plain{
      color:var(--brand-2);
      background:transparent;
      padding:0 8px;
      min-height:auto;
      border-radius:12px;
    }
    .btn-plain:hover{color:#1d4ed8;text-decoration:underline;text-underline-offset:3px}
    .hero-tags{
      display:flex;flex-wrap:wrap;gap:10px;
      margin-top:24px;
    }
    .tag{
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 12px;border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
      color:#334155;
      font-size:13px;
      box-shadow:0 10px 20px rgba(15,23,42,.03);
    }
    .tag strong{color:#0f172a}
    .hero-panel{
      background:rgba(255,255,255,.9);
      border:1px solid var(--line);
      border-radius:28px;
      padding:20px;
      box-shadow:0 18px 40px rgba(37,99,235,.07);
      position:relative;
    }
    .panel-top{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      margin-bottom:16px;
    }
    .panel-top strong{font-size:16px;color:#0f172a}
    .panel-top span{
      font-size:12px;color:#64748b;
      padding:6px 10px;border-radius:999px;
      background:#f4f8ff;border:1px solid var(--line);
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:12px;
    }
    .entry-card{
      background:linear-gradient(180deg, #fff, #f8fbff);
      border:1px solid #dbeafe;
      border-radius:20px;
      padding:16px;
      min-height:120px;
      display:flex;flex-direction:column;justify-content:space-between;
      box-shadow:0 12px 28px rgba(37,99,235,.06);
      transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
    }
    .entry-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:#bfd4ff;
    }
    .entry-card .mini-badge{
      display:inline-flex;align-items:center;
      width:max-content;
      padding:6px 10px;border-radius:999px;
      background:#e0f2fe;color:#0f5bd5;
      font-size:12px;font-weight:700
    }
    .entry-card h3{
      font-size:18px;margin-top:10px;
    }
    .entry-card p{
      font-size:13px;color:#64748b;line-height:1.7;margin-top:8px
    }
    .entry-card .link-line{
      display:flex;align-items:center;gap:6px;
      margin-top:12px;color:var(--brand-2);
      font-size:13px;font-weight:700;
      transition:transform .18s var(--ease)
    }
    .entry-card .link-line svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2}
    .entry-card:hover .link-line{transform:translateX(2px)}
    .hero-footnote{
      margin-top:18px;
      padding:14px 16px;
      border-radius:18px;
      background:#f8fbff;
      border:1px solid var(--line);
      color:#475569;
      font-size:14px;
      display:flex;align-items:flex-start;gap:10px
    }
    .hero-footnote .dot{
      width:10px;height:10px;border-radius:999px;margin-top:6px;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(245,158,11,.14);
      flex:none;
    }
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start;
    }
    .section-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--r-lg);
      box-shadow:var(--shadow);
      padding:24px;
    }
    .note-card{
      background:linear-gradient(180deg, #f8fbff, #ffffff);
      border:1px solid #dbeafe;
      box-shadow:0 16px 40px rgba(37,99,235,.06);
    }
    .section-heading{
      display:flex;align-items:end;justify-content:space-between;gap:18px;
      margin-bottom:22px;
    }
    .section-heading p{
      max-width:680px;
      color:#64748b;
      font-size:14px;line-height:1.8
    }
    .three-cards{
      display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .info-card{
      background:linear-gradient(180deg, #fff, #fbfdff);
      border:1px solid var(--line);
      border-radius:22px;
      padding:22px;
      box-shadow:0 14px 28px rgba(15,23,42,.04);
      transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .info-card::before{
      content:"";
      position:absolute;left:0;top:0;right:0;height:4px;
      background:linear-gradient(90deg, var(--brand), #60a5fa);
      opacity:.88;
    }
    .info-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:#d6e4ff;
    }
    .info-card .idx{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      background:#eff6ff;color:var(--brand-2);
      font-size:13px;font-weight:800;
      margin-bottom:14px;
    }
    .info-card h3{font-size:19px}
    .info-card p{
      margin-top:10px;color:#64748b;font-size:14px;line-height:1.82
    }
    .info-card .meta{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      margin-top:16px;color:#94a3b8;font-size:12px
    }
    .info-card .meta span:last-child{
      color:var(--brand-2);font-weight:700;display:inline-flex;align-items:center;gap:6px
    }
    .info-card .meta svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2}
    .featured-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .featured-large{
      grid-row:span 2;
      min-height:100%;
      display:flex;flex-direction:column;justify-content:space-between;
      background:
        radial-gradient(circle at 80% 10%, rgba(96,165,250,.18), transparent 24%),
        linear-gradient(180deg, #fff, #f8fbff);
    }
    .featured-large .badge-row,
    .mini-feature .badge-row{
      display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px
    }
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:7px 10px;border-radius:999px;
      font-size:12px;font-weight:700;
      border:1px solid transparent;
      background:#eff6ff;color:#1d4ed8
    }
    .badge.soft{background:#f0fdf4;color:#047857}
    .badge.amber{background:#fffbeb;color:#b45309}
    .badge.sky{background:#e0f2fe;color:#0369a1}
    .featured-large h3{font-size:24px}
    .featured-large p,
    .mini-feature p{
      color:#64748b;font-size:14px;line-height:1.8;margin-top:10px
    }
    .mini-feature{
      min-height:210px;
      display:flex;flex-direction:column;justify-content:space-between;
    }
    .mini-feature h3{font-size:19px}
    .list-link{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:14px 0;border-top:1px dashed #e5edf9;
      margin-top:18px;color:var(--brand-2);font-size:14px;font-weight:700;
    }
    .list-link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .18s var(--ease)}
    .info-card:hover .list-link svg,
    .featured-large:hover .list-link svg,
    .mini-feature:hover .list-link svg{transform:translateX(2px)}
    .trust-grid{
      display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px
    }
    .trust-item{
      background:linear-gradient(180deg, #fff, #f8fbff);
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
      box-shadow:0 14px 30px rgba(15,23,42,.04);
    }
    .trust-icon{
      width:44px;height:44px;border-radius:16px;
      background:#eff6ff;color:var(--brand-2);
      display:grid;place-items:center;
      margin-bottom:14px;
      border:1px solid #dbeafe;
    }
    .trust-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}
    .trust-item strong{display:block;font-size:18px;color:#0f172a}
    .trust-item p{margin-top:8px;color:#64748b;font-size:14px;line-height:1.8}
    .updates-grid{
      display:grid;grid-template-columns:1.08fr .92fr;gap:18px
    }
    .news-list{
      display:grid;gap:12px
    }
    .news-item{
      display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
      padding:16px 18px;border-radius:18px;
      border:1px solid var(--line);
      background:#fff;
      transition:transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
    }
    .news-item:hover{
      transform:translateY(-2px);
      border-color:#cfe0ff;
      box-shadow:0 14px 30px rgba(37,99,235,.06);
    }
    .news-item h3{
      font-size:16px;line-height:1.5;
    }
    .news-item p{
      margin-top:6px;color:#64748b;font-size:13px;line-height:1.7
    }
    .news-item .date{
      flex:none;font-size:12px;color:#94a3b8;
      padding:6px 10px;border-radius:999px;background:#f8fbff;
      border:1px solid var(--line);
      margin-top:2px
    }
    .updates-aside{
      background:linear-gradient(180deg, #f7fbff, #fff);
      border:1px solid #dbeafe;
      border-radius:24px;
      padding:22px;
      box-shadow:0 16px 36px rgba(37,99,235,.06);
    }
    .updates-aside h3{font-size:20px}
    .updates-aside p{margin-top:10px;color:#64748b;font-size:14px;line-height:1.8}
    .steps{
      margin-top:18px;
      display:grid;gap:12px
    }
    .step{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px 0;border-top:1px solid rgba(229,234,243,.9)
    }
    .step:first-child{border-top:none;padding-top:0}
    .step .num{
      width:30px;height:30px;border-radius:10px;
      background:#eff6ff;color:var(--brand-2);
      display:grid;place-items:center;
      font-weight:800;font-size:12px;flex:none
    }
    .step strong{display:block;font-size:14px}
    .step span{display:block;font-size:13px;color:#64748b;line-height:1.7;margin-top:4px}
    .safety-grid{
      display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px
    }
    .safety-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
      box-shadow:0 12px 28px rgba(15,23,42,.04);
    }
    .safety-card .shield{
      width:42px;height:42px;border-radius:15px;
      background:#eff6ff;border:1px solid #dbeafe;
      color:var(--brand-2);display:grid;place-items:center;
      margin-bottom:12px
    }
    .safety-card .shield svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:2}
    .safety-card strong{display:block;font-size:17px;color:#0f172a}
    .safety-card p{margin-top:8px;color:#64748b;font-size:14px;line-height:1.8}
    .cta-wrap{
      background:
        radial-gradient(circle at 92% 12%, rgba(245,158,11,.12), transparent 18%),
        linear-gradient(180deg, #eff6ff, #f8fbff 58%, #ffffff);
      border:1px solid #dbeafe;
      border-radius:32px;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .cta-grid{
      display:grid;grid-template-columns:1.02fr .98fr;gap:0;
      padding:30px;
      align-items:start;
    }
    .cta-copy{
      padding-right:24px;
    }
    .cta-copy p{
      margin-top:14px;color:#475569;font-size:15px;line-height:1.9;max-width:620px
    }
    .cta-points{
      display:flex;flex-wrap:wrap;gap:10px;margin-top:18px
    }
    .cta-panel{
      background:rgba(255,255,255,.94);
      border:1px solid var(--line);
      border-radius:26px;
      padding:22px;
      box-shadow:0 14px 36px rgba(37,99,235,.06);
    }
    .field{
      display:grid;gap:8px;margin-bottom:14px
    }
    .field label{
      font-size:13px;font-weight:700;color:#334155
    }
    .input,.textarea{
      width:100%;
      border:1px solid #d7e2f2;
      background:#fff;
      border-radius:16px;
      padding:14px 15px;
      color:#0f172a;
      transition:border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
      outline:none;
    }
    .input:focus,.textarea:focus{
      border-color:#88b4ff;
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
      background:#fbfdff;
    }
    .textarea{min-height:120px;resize:vertical}
    .form-actions{
      display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px
    }
    .form-note{
      margin-top:12px;font-size:12px;color:#94a3b8;line-height:1.7
    }
    .status-msg{
      margin-top:14px;
      padding:12px 14px;
      border-radius:14px;
      background:#ecfdf5;
      color:#047857;
      border:1px solid #bbf7d0;
      display:none;
      font-size:13px;
      line-height:1.7;
    }
    .faq-list{
      display:grid;gap:12px
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      box-shadow:0 12px 26px rgba(15,23,42,.04);
      transition:border-color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
    }
    .faq-item[open], .faq-item.open{
      border-color:#bfd4ff;
      box-shadow:0 16px 34px rgba(37,99,235,.08);
    }
    .faq-q{
      list-style:none;
    }
    .faq-btn{
      width:100%;
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:18px 20px;
      border:none;
      background:transparent;
      color:#0f172a;
      text-align:left;
      font-weight:700;
    }
    .faq-btn span{
      display:block;font-size:16px;line-height:1.5
    }
    .faq-btn .chev{
      width:34px;height:34px;border-radius:999px;
      flex:none;background:#eff6ff;color:var(--brand-2);
      display:grid;place-items:center;
      transition:transform .2s var(--ease), background .2s var(--ease)
    }
    .faq-btn .chev svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
    .faq-item.open .faq-btn .chev,
    .faq-item[open] .faq-btn .chev{transform:rotate(180deg);background:#dbeafe}
    .faq-a{
      padding:0 20px 20px;
      color:#556073;
      font-size:14px;
      line-height:1.9;
    }
    .footer{
      padding:28px 0 40px;
      border-top:1px solid rgba(229,234,243,.9);
      background:rgba(255,255,255,.55);
    }
    .footer-grid{
      width:min(var(--container), calc(100% - 48px));
      margin:0 auto;
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:20px;
      align-items:start;
    }
    .footer-brand{
      display:flex;align-items:flex-start;gap:12px
    }
    .footer-brand .brand-mark{width:42px;height:42px}
    .footer-brand p{
      margin-top:10px;color:#64748b;font-size:14px;line-height:1.8;max-width:420px
    }
    .footer-col h3{
      font-size:14px;
      color:#0f172a;
      margin-bottom:12px;
    }
    .footer-links{
      display:grid;gap:10px
    }
    .footer-links a{
      color:#475569;font-size:14px;transition:color .18s var(--ease), transform .18s var(--ease)
    }
    .footer-links a:hover{color:var(--brand-2);transform:translateX(2px)}
    .footer-bottom{
      width:min(var(--container), calc(100% - 48px));
      margin:18px auto 0;
      padding-top:18px;
      border-top:1px solid var(--line);
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      color:#94a3b8;font-size:12px;line-height:1.7;
      flex-wrap:wrap;
    }
    .quick-top{
      position:fixed;
      right:18px;
      bottom:18px;
      width:48px;height:48px;
      border-radius:16px;
      border:1px solid #dbeafe;
      background:#fff;
      color:var(--brand-2);
      display:grid;place-items:center;
      box-shadow:0 16px 30px rgba(37,99,235,.12);
      z-index:30;
      transition:transform .18s var(--ease), box-shadow .18s var(--ease)
    }
    .quick-top:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(37,99,235,.18)}
    .quick-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2}
    .anchor-gap{scroll-margin-top:92px}
    @media (max-width: 1200px){
      :root{--sidebar-w:220px}
      .featured-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .featured-large{grid-column:span 2;grid-row:span 1}
      .trust-grid,.safety-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width: 1024px){
      body{padding-left:0;padding-top:var(--header-h)}
      .sidebar{display:none}
      .mobile-topbar{display:flex}
      .section{padding:68px 0}
      .hero-grid,.split,.updates-grid,.cta-grid{grid-template-columns:1fr}
      .cta-copy{padding-right:0}
      .hero-grid{padding:26px}
      .three-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width: 768px){
      .container,.footer-grid,.footer-bottom{width:min(var(--container), calc(100% - 32px))}
      .hero-shell{border-radius:26px}
      .hero-grid{padding:22px}
      .section{padding:56px 0}
      .entry-grid,.three-cards,.trust-grid,.safety-grid,.featured-grid{grid-template-columns:1fr}
      .featured-large{grid-column:auto;grid-row:auto}
      .section-heading{flex-direction:column;align-items:flex-start}
      .cta-grid{padding:22px}
      .footer-grid{grid-template-columns:1fr}
      h1{font-size:clamp(30px, 10vw, 42px)}
      h2{font-size:clamp(24px, 7vw, 30px)}
      .section-lead{font-size:15px}
      .hero-actions,.cta-points,.hero-tags{gap:8px}
      .btn{width:100%}
      .hero-actions .btn{flex:1 1 100%}
    }
    @media (max-width: 520px){
      .container,.footer-grid,.footer-bottom{width:min(var(--container), calc(100% - 24px))}
      .mobile-topbar{padding:0 12px}
      .mobile-topbar .mobile-brand strong{font-size:15px}
      .brand-mark{width:40px;height:40px}
      .btn{min-height:46px;font-size:14px}
      .info-card,.section-card,.trust-item,.safety-card,.updates-aside,.cta-panel,.news-item,.faq-item{border-radius:18px}
      .faq-btn{padding:16px}
      .faq-a{padding:0 16px 18px}
      .hero-footnote{font-size:13px}
      .quick-top{right:12px;bottom:12px}
    }

/* roulang page: category2 */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #eff6ff;
      --primary-pale: #f5f9ff;
      --cyan: #38bdf8;
      --cyan-soft: #e0f2fe;
      --mint-soft: #ecfeff;
      --amber: #f59e0b;
      --amber-soft: #fff7ed;
      --success: #10b981;
      --danger: #ef4444;
      --bg: #f8fbff;
      --surface: #ffffff;
      --surface-2: #f6f9fe;
      --text: #1f2937;
      --heading: #0f172a;
      --muted: #6b7280;
      --border: #e5eaf3;
      --border-strong: #cfe0ff;
      --shadow: 0 16px 40px rgba(37, 99, 235, 0.08);
      --shadow-hover: 0 22px 54px rgba(37, 99, 235, 0.14);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --sidebar: 264px;
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 82% 6%, rgba(56, 189, 248, .18), transparent 28%),
        radial-gradient(circle at 42% 18%, rgba(37, 99, 235, .10), transparent 30%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 38%, #f6f9fe 100%);
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img, svg {
      max-width: 100%;
      display: block;
    }

    button, input, textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    input, textarea {
      width: 100%;
      border: 1px solid var(--border);
      outline: none;
      background: #fff;
      color: var(--heading);
      transition: var(--ease);
    }

    input:focus, textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
    }

    ::selection {
      background: rgba(37, 99, 235, .16);
      color: var(--heading);
    }

    .skip-link {
      position: fixed;
      top: 12px;
      left: 12px;
      z-index: 1000;
      transform: translateY(-140%);
      padding: 10px 14px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      transition: var(--ease);
    }

    .skip-link:focus {
      transform: translateY(0);
    }

    .app {
      min-height: 100vh;
    }

    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      padding: 22px 18px;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(18px);
      border-right: 1px solid var(--border);
      z-index: 80;
      display: flex;
      flex-direction: column;
      gap: 24px;
      box-shadow: 8px 0 30px rgba(15, 23, 42, .03);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 8px 8px 14px;
      border-bottom: 1px solid var(--border);
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 15px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, .98), rgba(56, 189, 248, .9)),
        radial-gradient(circle at 35% 25%, rgba(255,255,255,.72), transparent 34%);
      position: relative;
      box-shadow: 0 12px 28px rgba(37, 99, 235, .22);
      flex: 0 0 auto;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      left: 11px;
      right: 11px;
      height: 3px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .92);
    }

    .brand-mark::before {
      top: 15px;
      box-shadow: 0 7px 0 rgba(255,255,255,.72);
    }

    .brand-mark::after {
      width: 12px;
      right: auto;
      bottom: 10px;
      background: rgba(255,255,255,.62);
    }

    .brand-text strong {
      display: block;
      color: var(--heading);
      font-size: 17px;
      line-height: 1.3;
      letter-spacing: -.02em;
    }

    .brand-text span {
      display: block;
      margin-top: 2px;
      color: var(--muted);
      font-size: 12px;
    }

    .nav {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .nav a {
      display: grid;
      grid-template-columns: 38px 1fr;
      align-items: center;
      gap: 10px;
      min-height: 58px;
      padding: 10px 12px;
      border-radius: 18px;
      color: #334155;
      border: 1px solid transparent;
      position: relative;
      transition: var(--ease);
    }

    .nav a:hover {
      background: var(--primary-soft);
      color: var(--primary-dark);
      border-color: #dbeafe;
      transform: translateX(2px);
    }

    .nav a.active {
      background: linear-gradient(90deg, rgba(37, 99, 235, .12), rgba(224, 242, 254, .65));
      color: var(--primary-dark);
      border-color: var(--border-strong);
      box-shadow: 0 10px 28px rgba(37, 99, 235, .08);
    }

    .nav a.active::before {
      content: "";
      position: absolute;
      left: -1px;
      top: 16px;
      bottom: 16px;
      width: 4px;
      border-radius: 999px;
      background: var(--primary);
    }

    .nav-ico {
      width: 36px;
      height: 36px;
      border-radius: 13px;
      display: grid;
      place-items: center;
      background: #f1f7ff;
      color: currentColor;
    }

    .nav-ico svg {
      width: 20px;
      height: 20px;
      stroke: currentColor;
      stroke-width: 1.9;
      fill: none;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .nav small {
      display: block;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.35;
      margin-top: 1px;
    }

    .sidebar-bottom {
      margin-top: auto;
      padding: 14px 10px 4px;
      border-top: 1px solid var(--border);
      display: grid;
      gap: 10px;
      color: var(--muted);
      font-size: 12px;
    }

    .side-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #475569;
      transition: var(--ease);
    }

    .side-link:hover {
      color: var(--primary);
    }

    .mobile-topbar {
      display: none;
      position: fixed;
      inset: 0 0 auto 0;
      height: 68px;
      z-index: 90;
      align-items: center;
      justify-content: space-between;
      padding: 0 18px;
      background: rgba(255, 255, 255, .92);
      border-bottom: 1px solid var(--border);
      backdrop-filter: blur(16px);
    }

    .mobile-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      color: var(--heading);
    }

    .menu-btn, .drawer-close {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--heading);
      transition: var(--ease);
    }

    .menu-btn:hover, .drawer-close:hover {
      background: var(--primary-soft);
      color: var(--primary);
      border-color: var(--border-strong);
    }

    .menu-btn span,
    .drawer-close span {
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: currentColor;
      position: relative;
    }

    .menu-btn span::before,
    .menu-btn span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: currentColor;
    }

    .menu-btn span::before { top: -6px; }
    .menu-btn span::after { top: 6px; }

    .drawer-close span {
      transform: rotate(45deg);
    }

    .drawer-close span::after {
      content: "";
      position: absolute;
      inset: 0;
      background: currentColor;
      border-radius: 99px;
      transform: rotate(90deg);
    }

    .drawer-mask {
      position: fixed;
      inset: 0;
      z-index: 95;
      background: rgba(15, 23, 42, .32);
      opacity: 0;
      pointer-events: none;
      transition: var(--ease);
    }

    .mobile-drawer {
      position: fixed;
      inset: 0 auto 0 0;
      width: min(88vw, 340px);
      z-index: 100;
      background: #fff;
      border-right: 1px solid var(--border);
      box-shadow: 20px 0 60px rgba(15, 23, 42, .16);
      transform: translateX(-105%);
      transition: transform .25s ease;
      padding: 18px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    body.drawer-open .drawer-mask {
      opacity: 1;
      pointer-events: auto;
    }

    body.drawer-open .mobile-drawer {
      transform: translateX(0);
    }

    .main {
      margin-left: var(--sidebar);
      min-height: 100vh;
    }

    .container {
      width: min(calc(100% - 48px), var(--container));
      margin: 0 auto;
    }

    .section {
      padding: 76px 0;
    }

    .section-tight {
      padding: 54px 0;
    }

    .hero {
      padding: 56px 0 42px;
      position: relative;
      overflow: hidden;
    }

    .hero-panel {
      border: 1px solid var(--border);
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.96), rgba(239,246,255,.92)),
        radial-gradient(circle at 18% 20%, rgba(56,189,248,.18), transparent 32%);
      box-shadow: var(--shadow);
      padding: 42px;
      position: relative;
      overflow: hidden;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      right: -70px;
      top: -95px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(37,99,235,.16), transparent 62%);
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(310px, .85fr);
      gap: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(37,99,235,.10);
      border: 1px solid rgba(37,99,235,.16);
      font-size: 13px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 0 4px rgba(56,189,248,.16);
    }

    h1, h2, h3, p {
      margin-top: 0;
    }

    h1 {
      margin-bottom: 18px;
      color: var(--heading);
      font-size: clamp(31px, 4vw, 50px);
      line-height: 1.14;
      letter-spacing: -.045em;
      font-weight: 800;
      max-width: 760px;
    }

    .lead {
      color: #475569;
      font-size: 17px;
      line-height: 1.85;
      max-width: 760px;
      margin-bottom: 24px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin: 22px 0 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 750;
      border: 1px solid transparent;
      transition: var(--ease);
      user-select: none;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 14px 30px rgba(37,99,235,.22);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(37,99,235,.30);
    }

    .btn-secondary {
      color: var(--primary-dark);
      background: #fff;
      border-color: var(--border-strong);
    }

    .btn-secondary:hover {
      background: var(--primary-soft);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(37,99,235,.10);
    }

    .text-link {
      color: var(--primary-dark);
      font-weight: 750;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--ease);
    }

    .text-link:hover {
      text-decoration: underline;
    }

    .text-link .arrow {
      transition: transform .2s ease;
    }

    .text-link:hover .arrow {
      transform: translateX(4px);
    }

    .quick-search {
      display: flex;
      align-items: center;
      gap: 10px;
      width: min(100%, 620px);
      padding: 8px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 14px 34px rgba(15,23,42,.05);
    }

    .quick-search input {
      border: 0;
      box-shadow: none;
      min-height: 42px;
      padding: 0 8px 0 14px;
      background: transparent;
    }

    .quick-search input:focus {
      box-shadow: none;
    }

    .quick-search button {
      flex: 0 0 auto;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      font-weight: 750;
      transition: var(--ease);
    }

    .quick-search button:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .tag, .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 7px 11px;
      font-size: 13px;
      font-weight: 700;
      line-height: 1;
    }

    .tag {
      background: #fff;
      color: #475569;
      border: 1px solid var(--border);
    }

    .tag.active {
      color: #fff;
      background: var(--primary);
      border-color: var(--primary);
    }

    .badge-blue {
      background: var(--primary-soft);
      color: var(--primary-dark);
    }

    .badge-cyan {
      background: var(--cyan-soft);
      color: #0369a1;
    }

    .badge-amber {
      background: var(--amber-soft);
      color: #b45309;
    }

    .status-card {
      border: 1px solid var(--border);
      border-radius: 26px;
      background: rgba(255,255,255,.82);
      box-shadow: 0 16px 36px rgba(37,99,235,.08);
      padding: 22px;
    }

    .status-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 18px;
    }

    .status-title h2 {
      margin: 0;
      font-size: 20px;
      color: var(--heading);
    }

    .status-line {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 12px;
      padding: 14px 0;
      border-top: 1px dashed var(--border);
    }

    .status-line:first-of-type {
      border-top: 0;
      padding-top: 0;
    }

    .num {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: var(--primary-dark);
      background: var(--primary-soft);
      font-weight: 800;
    }

    .status-line strong {
      display: block;
      color: var(--heading);
      margin-bottom: 2px;
    }

    .status-line p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 22px;
      margin-bottom: 28px;
    }

    .section-head h2 {
      margin-bottom: 8px;
      color: var(--heading);
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
      letter-spacing: -.03em;
    }

    .section-head p {
      margin: 0;
      max-width: 680px;
      color: var(--muted);
      line-height: 1.8;
    }

    .layout-with-index {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 300px;
      gap: 24px;
      align-items: start;
    }

    .index-card {
      position: sticky;
      top: 24px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.92);
      box-shadow: var(--shadow);
      padding: 20px;
    }

    .index-card h2 {
      margin: 0 0 14px;
      font-size: 18px;
      color: var(--heading);
    }

    .index-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 8px;
    }

    .index-list a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding: 10px 12px;
      border-radius: 14px;
      color: #475569;
      background: #f8fbff;
      border: 1px solid transparent;
      transition: var(--ease);
      font-weight: 650;
    }

    .index-list a:hover {
      color: var(--primary-dark);
      background: var(--primary-soft);
      border-color: var(--border-strong);
      transform: translateX(2px);
    }

    .group {
      border: 1px solid var(--border);
      border-radius: 28px;
      background: rgba(255,255,255,.84);
      box-shadow: var(--shadow);
      overflow: hidden;
      margin-bottom: 22px;
    }

    .group-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 18px 22px;
      background: linear-gradient(90deg, var(--primary-soft), var(--mint-soft));
      border-bottom: 1px solid var(--border);
    }

    .group-bar h2 {
      margin: 0;
      color: var(--heading);
      font-size: 22px;
      letter-spacing: -.02em;
    }

    .group-body {
      padding: 22px;
      display: grid;
      gap: 16px;
    }

    .wide-card {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: 22px;
      background: #fff;
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .wide-card::before {
      content: "";
      position: absolute;
      left: 0;
      top: 18px;
      bottom: 18px;
      width: 4px;
      border-radius: 999px;
      background: var(--cyan);
      opacity: .9;
    }

    .wide-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-strong);
    }

    .wide-card h3 {
      margin: 0 0 8px;
      color: var(--heading);
      font-size: 20px;
      line-height: 1.35;
    }

    .wide-card p {
      margin: 0;
      color: var(--muted);
      max-width: 760px;
    }

    .wide-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 12px;
    }

    .arrow-btn {
      width: 44px;
      height: 44px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: var(--primary-dark);
      background: var(--primary-soft);
      transition: var(--ease);
    }

    .wide-card:hover .arrow-btn {
      transform: translateX(4px);
      background: var(--primary);
      color: #fff;
    }

    .notice-box {
      display: grid;
      grid-template-columns: 52px 1fr;
      gap: 16px;
      padding: 22px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #eff6ff, #ecfeff);
      border: 1px solid var(--border-strong);
      margin-bottom: 22px;
    }

    .notice-ico {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--cyan));
      box-shadow: 0 14px 28px rgba(37,99,235,.18);
      font-weight: 900;
      font-size: 22px;
    }

    .notice-box h2 {
      margin: 0 0 6px;
      color: var(--heading);
      font-size: 22px;
    }

    .notice-box p {
      margin: 0;
      color: #475569;
    }

    .process {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .process-card {
      border: 1px solid var(--border);
      border-radius: 22px;
      background: #fff;
      padding: 20px;
      box-shadow: 0 12px 30px rgba(37,99,235,.06);
      transition: var(--ease);
    }

    .process-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-strong);
    }

    .process-step {
      display: inline-grid;
      place-items: center;
      width: 34px;
      height: 34px;
      border-radius: 12px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 900;
      margin-bottom: 12px;
    }

    .process-card h3 {
      margin: 0 0 8px;
      color: var(--heading);
      font-size: 18px;
    }

    .process-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .faq-wrap {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border: 1px solid var(--border);
      border-radius: 20px;
      background: #fff;
      box-shadow: 0 10px 26px rgba(37,99,235,.05);
      overflow: hidden;
      transition: var(--ease);
    }

    .faq-item.active {
      border-color: var(--border-strong);
      box-shadow: var(--shadow);
    }

    .faq-question {
      width: 100%;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: var(--heading);
      font-weight: 800;
      text-align: left;
    }

    .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      transition: var(--ease);
      font-size: 20px;
      line-height: 1;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .faq-answer p {
      margin: 0;
      padding: 14px 16px;
      border-radius: 16px;
      background: var(--primary-pale);
      color: #475569;
    }

    .cta-panel {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 390px;
      gap: 26px;
      align-items: center;
      padding: 30px;
      border-radius: 30px;
      border: 1px solid var(--border-strong);
      background:
        linear-gradient(135deg, rgba(239,246,255,.95), rgba(236,254,255,.92)),
        radial-gradient(circle at 90% 10%, rgba(56,189,248,.18), transparent 38%);
      box-shadow: var(--shadow);
    }

    .cta-panel h2 {
      margin: 0 0 10px;
      color: var(--heading);
      font-size: clamp(24px, 3vw, 32px);
      letter-spacing: -.03em;
    }

    .cta-panel p {
      margin: 0;
      color: #475569;
      max-width: 680px;
    }

    .feedback-form {
      display: grid;
      gap: 10px;
      padding: 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.82);
      border: 1px solid var(--border);
    }

    .feedback-form input {
      min-height: 46px;
      padding: 0 14px;
      border-radius: 14px;
    }

    .feedback-form textarea {
      min-height: 88px;
      resize: vertical;
      padding: 12px 14px;
      border-radius: 14px;
    }

    .form-tip {
      margin: 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .form-message {
      display: none;
      padding: 9px 12px;
      border-radius: 12px;
      background: #ecfdf5;
      color: #047857;
      font-size: 13px;
      font-weight: 700;
    }

    .form-message.show {
      display: block;
    }

    .footer {
      margin-left: var(--sidebar);
      padding: 46px 0 28px;
      background: #fff;
      border-top: 1px solid var(--border);
    }

    .footer-grid {
      width: min(calc(100% - 48px), var(--container));
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.35fr .7fr .7fr;
      gap: 36px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }

    .footer-brand .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
    }

    .footer p {
      margin: 7px 0 0;
      max-width: 520px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-col h3 {
      margin: 0 0 12px;
      color: var(--heading);
      font-size: 16px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a {
      color: var(--muted);
      transition: var(--ease);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--primary);
      transform: translateX(2px);
    }

    .footer-bottom {
      width: min(calc(100% - 48px), var(--container));
      margin: 30px auto 0;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      gap: 18px;
      color: var(--muted);
      font-size: 13px;
    }

    @media (max-width: 1180px) {
      :root {
        --sidebar: 238px;
      }

      .hero-inner,
      .layout-with-index,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .index-card {
        position: static;
        order: -1;
      }

      .process {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 920px) {
      .sidebar {
        display: none;
      }

      .mobile-topbar {
        display: flex;
      }

      .main,
      .footer {
        margin-left: 0;
      }

      .main {
        padding-top: 68px;
      }

      .hero {
        padding-top: 30px;
      }

      .container,
      .footer-grid,
      .footer-bottom {
        width: min(calc(100% - 32px), var(--container));
      }

      .hero-panel {
        padding: 30px 22px;
        border-radius: 26px;
      }

      .section {
        padding: 58px 0;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 640px) {
      .container,
      .footer-grid,
      .footer-bottom {
        width: min(calc(100% - 24px), var(--container));
      }

      .mobile-topbar {
        height: 64px;
        padding: 0 12px;
      }

      .main {
        padding-top: 64px;
      }

      .brand-text strong {
        font-size: 15px;
      }

      .brand-text span {
        display: none;
      }

      .hero-panel {
        padding: 24px 16px;
      }

      .quick-search {
        border-radius: 20px;
        flex-direction: column;
        align-items: stretch;
      }

      .quick-search button {
        width: 100%;
      }

      .hero-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .group-bar {
        flex-direction: column;
        align-items: flex-start;
        padding: 16px;
      }

      .group-body {
        padding: 16px;
      }

      .wide-card {
        grid-template-columns: 1fr;
        padding: 18px 16px;
      }

      .arrow-btn {
        width: 100%;
      }

      .notice-box {
        grid-template-columns: 1fr;
        padding: 18px;
      }

      .process {
        grid-template-columns: 1fr;
      }

      .cta-panel {
        padding: 20px;
        border-radius: 24px;
      }

      .footer {
        padding-top: 36px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #eff6ff;
      --cyan: #38bdf8;
      --cyan-soft: #e0f2fe;
      --amber: #f59e0b;
      --amber-soft: #fff7ed;
      --success: #10b981;
      --danger: #ef4444;
      --bg: #f8fbff;
      --surface: #ffffff;
      --surface-2: #f6f9fe;
      --text: #1f2937;
      --heading: #0f172a;
      --muted: #6b7280;
      --border: #e5eaf3;
      --border-blue: #bfdbfe;
      --shadow: 0 16px 40px rgba(37, 99, 235, .08);
      --shadow-hover: 0 22px 58px rgba(37, 99, 235, .14);
      --radius-sm: 12px;
      --radius: 18px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --sidebar: 248px;
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 86% 8%, rgba(56, 189, 248, .16), transparent 32%),
        radial-gradient(circle at 20% 18%, rgba(37, 99, 235, .10), transparent 30%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 48%, #f6f9fe 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    svg {
      display: block;
      width: 100%;
      height: 100%;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.9;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .skip-link {
      position: fixed;
      left: 16px;
      top: -80px;
      z-index: 1000;
      padding: 10px 14px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      transition: var(--ease);
    }

    .skip-link:focus {
      top: 16px;
      outline: 3px solid rgba(37, 99, 235, .25);
    }

    .app-shell {
      min-height: 100vh;
    }

    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      padding: 24px 18px;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(18px);
      border-right: 1px solid var(--border);
      z-index: 80;
      display: flex;
      flex-direction: column;
      box-shadow: 12px 0 36px rgba(15, 23, 42, .04);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 8px 22px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 18px;
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      flex: 0 0 auto;
      border-radius: 16px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, .95), rgba(56, 189, 248, .90)),
        radial-gradient(circle at 30% 20%, #fff, transparent 35%);
      position: relative;
      box-shadow: 0 14px 26px rgba(37, 99, 235, .22);
      overflow: hidden;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      left: 10px;
      right: 10px;
      height: 3px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .9);
    }

    .brand-mark::before {
      top: 15px;
      box-shadow: 0 8px 0 rgba(255, 255, 255, .68);
    }

    .brand-mark::after {
      bottom: 8px;
      width: 14px;
      right: auto;
      background: rgba(224, 242, 254, .95);
    }

    .brand-text strong {
      display: block;
      font-size: 17px;
      line-height: 1.25;
      color: var(--heading);
      letter-spacing: -.02em;
    }

    .brand-text span {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.4;
    }

    .nav {
      display: grid;
      gap: 8px;
      margin-top: 4px;
    }

    .nav a {
      display: flex;
      align-items: center;
      gap: 11px;
      min-height: 58px;
      padding: 11px 12px;
      border-radius: 16px;
      color: #475569;
      border: 1px solid transparent;
      position: relative;
      transition: var(--ease);
    }

    .nav a::before {
      content: "";
      position: absolute;
      left: -6px;
      top: 17px;
      width: 4px;
      height: 24px;
      border-radius: 999px;
      background: transparent;
      transition: var(--ease);
    }

    .nav a:hover {
      background: var(--primary-soft);
      color: var(--primary);
      border-color: #dbeafe;
      transform: translateX(2px);
    }

    .nav a.active {
      background: linear-gradient(135deg, #eff6ff, #e0f2fe);
      color: var(--primary-dark);
      border-color: var(--border-blue);
      box-shadow: 0 12px 24px rgba(37, 99, 235, .08);
    }

    .nav a.active::before {
      background: var(--primary);
    }

    .nav-ico {
      width: 22px;
      height: 22px;
      flex: 0 0 auto;
    }

    .nav small {
      display: block;
      margin-top: 1px;
      font-size: 11px;
      color: var(--muted);
      line-height: 1.25;
    }

    .nav a.active small,
    .nav a:hover small {
      color: #3b82f6;
    }

    .side-bottom {
      margin-top: auto;
      display: grid;
      gap: 10px;
      padding-top: 18px;
      border-top: 1px solid var(--border);
    }

    .side-bottom a,
    .side-copy {
      font-size: 12px;
      color: var(--muted);
    }

    .side-bottom a {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 9px 10px;
      border-radius: 999px;
      background: #f8fafc;
      border: 1px solid var(--border);
      transition: var(--ease);
    }

    .side-bottom a:hover {
      color: var(--primary);
      background: var(--primary-soft);
      border-color: var(--border-blue);
    }

    .mobile-bar {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 68px;
      z-index: 90;
      align-items: center;
      justify-content: space-between;
      padding: 0 18px;
      background: rgba(255, 255, 255, .93);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .mobile-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      color: var(--heading);
    }

    .mobile-brand .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 14px;
    }

    .menu-btn,
    .drawer-close {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      color: var(--primary);
      border: 1px solid var(--border-blue);
      background: var(--primary-soft);
      transition: var(--ease);
    }

    .menu-btn:hover,
    .drawer-close:hover {
      transform: translateY(-1px);
      box-shadow: 0 10px 24px rgba(37, 99, 235, .12);
    }

    .drawer {
      position: fixed;
      inset: 0;
      z-index: 120;
      pointer-events: none;
    }

    .drawer-mask {
      position: absolute;
      inset: 0;
      background: rgba(15, 23, 42, .32);
      opacity: 0;
      transition: var(--ease);
    }

    .drawer-panel {
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
      width: min(86vw, 330px);
      background: #fff;
      padding: 20px 16px;
      transform: translateX(-102%);
      transition: transform .26s ease;
      box-shadow: 20px 0 60px rgba(15, 23, 42, .18);
      overflow-y: auto;
    }

    .drawer.open {
      pointer-events: auto;
    }

    .drawer.open .drawer-mask {
      opacity: 1;
    }

    .drawer.open .drawer-panel {
      transform: translateX(0);
    }

    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 14px;
    }

    .main {
      margin-left: var(--sidebar);
      min-height: 100vh;
    }

    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }

    .section {
      padding: 78px 0;
    }

    .section.tight {
      padding: 56px 0;
    }

    .hero {
      padding: 70px 0 46px;
      position: relative;
    }

    .hero-panel {
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-blue);
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .92), rgba(239, 246, 255, .94)),
        radial-gradient(circle at 88% 20%, rgba(56, 189, 248, .22), transparent 28%);
      box-shadow: var(--shadow);
      padding: 34px;
      overflow: hidden;
      position: relative;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      right: -110px;
      bottom: -120px;
      border-radius: 50%;
      background: rgba(37, 99, 235, .07);
      pointer-events: none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 430px;
      gap: 34px;
      align-items: stretch;
      position: relative;
      z-index: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: #e0f2fe;
      border: 1px solid #bae6fd;
      font-size: 13px;
      font-weight: 700;
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      margin: 18px 0 14px;
      color: var(--heading);
      font-size: clamp(32px, 5vw, 52px);
      line-height: 1.12;
      letter-spacing: -.04em;
      font-weight: 800;
      max-width: 780px;
    }

    .hero-lead {
      color: #475569;
      font-size: 17px;
      line-height: 1.85;
      max-width: 760px;
      margin-bottom: 24px;
    }

    .hero-actions,
    .cta-actions,
    .card-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      transition: var(--ease);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 14px 28px rgba(37, 99, 235, .20);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 38px rgba(37, 99, 235, .28);
    }

    .btn-secondary {
      color: var(--primary-dark);
      background: #fff;
      border-color: var(--border-blue);
    }

    .btn-secondary:hover {
      background: var(--primary-soft);
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(37, 99, 235, .10);
    }

    .btn:focus-visible,
    .nav a:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    button:focus-visible,
    .footer a:focus-visible {
      outline: 3px solid rgba(37, 99, 235, .25);
      outline-offset: 3px;
    }

    .demo-card {
      border-radius: 26px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 18px 46px rgba(15, 23, 42, .08);
      padding: 20px;
      position: relative;
      overflow: hidden;
    }

    .demo-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 16px;
    }

    .demo-title {
      font-weight: 800;
      color: var(--heading);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 800;
      color: var(--primary-dark);
      background: var(--primary-soft);
      border: 1px solid #dbeafe;
      line-height: 1.2;
    }

    .badge.amber {
      color: #b45309;
      background: var(--amber-soft);
      border-color: #fed7aa;
    }

    .badge.cyan {
      color: #0e7490;
      background: var(--cyan-soft);
      border-color: #bae6fd;
    }

    .demo-list {
      display: grid;
      gap: 10px;
    }

    .demo-item {
      display: grid;
      grid-template-columns: 34px 1fr auto;
      align-items: center;
      gap: 12px;
      padding: 12px;
      border-radius: 16px;
      background: #f8fafc;
      border: 1px solid var(--border);
      transition: var(--ease);
    }

    .demo-item:hover {
      background: var(--primary-soft);
      border-color: var(--border-blue);
      transform: translateX(3px);
    }

    .demo-num {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #fff;
      color: var(--primary);
      font-weight: 900;
      border: 1px solid var(--border-blue);
    }

    .demo-item strong {
      display: block;
      color: var(--heading);
      font-size: 14px;
      line-height: 1.35;
    }

    .demo-item span {
      display: block;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.45;
      margin-top: 2px;
    }

    .arrow {
      color: var(--primary);
      transition: var(--ease);
      font-weight: 900;
    }

    .tags-bar {
      margin-top: 22px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .filter-tag {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 8px 13px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: #fff;
      color: #475569;
      font-size: 14px;
      font-weight: 700;
      transition: var(--ease);
    }

    .filter-tag:hover {
      border-color: var(--border-blue);
      color: var(--primary);
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .filter-tag.active {
      color: #fff;
      background: var(--primary);
      border-color: var(--primary);
      box-shadow: 0 12px 22px rgba(37, 99, 235, .16);
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 24px;
      margin-bottom: 26px;
    }

    .section-head h2 {
      color: var(--heading);
      font-size: clamp(25px, 3.3vw, 34px);
      line-height: 1.22;
      letter-spacing: -.03em;
      margin-bottom: 8px;
      font-weight: 800;
    }

    .section-head p {
      color: var(--muted);
      max-width: 660px;
      margin-bottom: 0;
    }

    .content-layout {
      display: grid;
      grid-template-columns: 330px minmax(0, 1fr);
      gap: 22px;
      align-items: start;
    }

    .info-card,
    .content-card,
    .process-card,
    .faq-item,
    .cta-panel {
      background: rgba(255, 255, 255, .94);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
    }

    .info-card {
      padding: 22px;
      position: sticky;
      top: 24px;
    }

    .info-card h2 {
      color: var(--heading);
      font-size: 22px;
      margin-bottom: 10px;
      line-height: 1.35;
    }

    .info-card p {
      color: var(--muted);
      margin-bottom: 16px;
    }

    .hint-box {
      padding: 14px;
      border-radius: 16px;
      background: linear-gradient(135deg, #eff6ff, #e0f2fe);
      border: 1px solid #bfdbfe;
      color: #1e3a8a;
      font-size: 14px;
      margin-top: 16px;
    }

    .mini-list {
      display: grid;
      gap: 10px;
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }

    .mini-list li {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: #475569;
      font-size: 14px;
    }

    .check {
      margin-top: 6px;
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--cyan);
      box-shadow: 0 0 0 4px rgba(56, 189, 248, .14);
      flex: 0 0 auto;
    }

    .content-list {
      display: grid;
      gap: 16px;
    }

    .content-card {
      padding: 20px;
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .content-card::before {
      content: "";
      position: absolute;
      left: 0;
      top: 20px;
      bottom: 20px;
      width: 4px;
      border-radius: 999px;
      background: linear-gradient(180deg, var(--primary), var(--cyan));
      opacity: .55;
    }

    .content-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-blue);
    }

    .content-card:hover .arrow {
      transform: translateX(4px);
    }

    .card-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 18px;
    }

    .card-main {
      padding-left: 10px;
    }

    .card-main h3 {
      color: var(--heading);
      font-size: 21px;
      margin-bottom: 8px;
      line-height: 1.35;
    }

    .card-main p {
      color: #4b5563;
      margin-bottom: 14px;
      max-width: 680px;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary-dark);
      font-weight: 800;
      white-space: nowrap;
      transition: var(--ease);
      padding-top: 4px;
    }

    .text-link:hover {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .process-card {
      padding: 20px;
      transition: var(--ease);
    }

    .process-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-blue);
    }

    .process-index {
      width: 40px;
      height: 40px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--cyan));
      box-shadow: 0 12px 24px rgba(37, 99, 235, .18);
      margin-bottom: 14px;
    }

    .process-card h3 {
      color: var(--heading);
      font-size: 18px;
      margin-bottom: 8px;
      line-height: 1.35;
    }

    .process-card p {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 0;
    }

    .notice-panel {
      display: grid;
      grid-template-columns: 1fr 1.05fr;
      gap: 22px;
      align-items: stretch;
    }

    .notice-feature {
      border-radius: var(--radius-xl);
      padding: 28px;
      border: 1px solid #bae6fd;
      background:
        linear-gradient(135deg, #ecfeff, #eff6ff),
        radial-gradient(circle at 85% 20%, rgba(56, 189, 248, .22), transparent 35%);
      box-shadow: var(--shadow);
    }

    .notice-feature h2 {
      color: var(--heading);
      font-size: 30px;
      line-height: 1.25;
      margin: 12px 0 10px;
    }

    .notice-feature p {
      color: #475569;
      margin-bottom: 0;
    }

    .notice-list {
      display: grid;
      gap: 12px;
    }

    .notice-item {
      display: flex;
      gap: 14px;
      padding: 16px;
      border-radius: 20px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 12px 26px rgba(37, 99, 235, .06);
    }

    .notice-dot {
      width: 12px;
      height: 12px;
      margin-top: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 6px rgba(37, 99, 235, .10);
      flex: 0 0 auto;
    }

    .notice-item h3 {
      color: var(--heading);
      font-size: 17px;
      margin-bottom: 4px;
    }

    .notice-item p {
      color: var(--muted);
      margin-bottom: 0;
      font-size: 14px;
    }

    .faq-wrap {
      display: grid;
      gap: 12px;
      max-width: 920px;
    }

    .faq-item {
      overflow: hidden;
      transition: var(--ease);
    }

    .faq-item.active {
      border-color: var(--border-blue);
      box-shadow: var(--shadow-hover);
    }

    .faq-question {
      width: 100%;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
      color: var(--heading);
      font-weight: 800;
    }

    .faq-icon {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-soft);
      color: var(--primary);
      transition: var(--ease);
      font-size: 18px;
      line-height: 1;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      display: none;
      margin: 0 18px 18px;
      padding: 14px 16px;
      border-radius: 16px;
      background: #f8fbff;
      border: 1px solid var(--border);
      color: #4b5563;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .cta-panel {
      padding: 30px;
      border-color: var(--border-blue);
      background:
        linear-gradient(135deg, #ffffff, #eff6ff),
        radial-gradient(circle at 80% 16%, rgba(56, 189, 248, .18), transparent 28%);
      display: grid;
      grid-template-columns: 1fr 430px;
      gap: 26px;
      align-items: center;
    }

    .cta-panel h2 {
      color: var(--heading);
      font-size: 30px;
      line-height: 1.25;
      margin-bottom: 10px;
    }

    .cta-panel p {
      color: #475569;
      margin-bottom: 16px;
      max-width: 670px;
    }

    .feedback-box {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 22px;
      padding: 18px;
      box-shadow: 0 16px 34px rgba(15, 23, 42, .06);
    }

    .form-group {
      display: grid;
      gap: 8px;
      margin-bottom: 12px;
    }

    .form-group label {
      color: var(--heading);
      font-size: 13px;
      font-weight: 800;
    }

    .input {
      width: 100%;
      min-height: 46px;
      border-radius: 14px;
      border: 1px solid var(--border);
      background: #f8fafc;
      padding: 11px 13px;
      color: var(--text);
      transition: var(--ease);
      resize: vertical;
    }

    .input:focus {
      border-color: var(--primary);
      background: #fff;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
      outline: 0;
    }

    .form-note {
      font-size: 12px;
      color: var(--muted);
      margin: 10px 0 0;
    }

    .form-msg {
      display: none;
      margin-top: 10px;
      padding: 9px 12px;
      border-radius: 12px;
      color: #047857;
      background: #ecfdf5;
      border: 1px solid #a7f3d0;
      font-size: 13px;
    }

    .form-msg.show {
      display: block;
    }

    .footer {
      margin-left: var(--sidebar);
      padding: 42px 0 28px;
      background: #ffffff;
      border-top: 1px solid var(--border);
    }

    .footer-grid,
    .footer-bottom {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr .7fr .7fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }

    .footer-brand .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
    }

    .footer-brand p {
      color: var(--muted);
      max-width: 430px;
      margin: 6px 0 0;
      font-size: 14px;
    }

    .footer-col h3 {
      color: var(--heading);
      font-size: 15px;
      margin-bottom: 10px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
      transition: var(--ease);
    }

    .footer-links a:hover {
      color: var(--primary);
      transform: translateX(2px);
    }

    .footer-bottom {
      margin-top: 28px;
      padding-top: 18px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      color: var(--muted);
      font-size: 13px;
    }

    @media (max-width: 1180px) {
      :root {
        --sidebar: 224px;
      }

      .hero-grid,
      .cta-panel,
      .notice-panel {
        grid-template-columns: 1fr;
      }

      .demo-card {
        max-width: 640px;
      }

      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 1024px) {
      .sidebar {
        display: none;
      }

      .mobile-bar {
        display: flex;
      }

      .main,
      .footer {
        margin-left: 0;
      }

      .main {
        padding-top: 68px;
      }

      .container,
      .footer-grid,
      .footer-bottom {
        width: min(100% - 36px, var(--container));
      }

      .hero {
        padding-top: 38px;
      }

      .content-layout {
        grid-template-columns: 1fr;
      }

      .info-card {
        position: relative;
        top: auto;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 56px 0;
      }

      .section.tight {
        padding: 44px 0;
      }

      .hero-panel,
      .cta-panel,
      .notice-feature {
        padding: 22px;
        border-radius: 24px;
      }

      .section-head {
        display: block;
      }

      .card-row {
        display: grid;
        gap: 12px;
      }

      .process-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
      }

      .demo-item {
        grid-template-columns: 32px 1fr;
      }

      .demo-item .arrow {
        display: none;
      }
    }

    @media (max-width: 520px) {
      .container,
      .footer-grid,
      .footer-bottom {
        width: min(100% - 28px, var(--container));
      }

      .mobile-bar {
        padding: 0 14px;
      }

      .mobile-brand span {
        max-width: 190px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .hero-actions,
      .cta-actions,
      .card-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .tags-bar {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
      }

      .filter-tag {
        flex: 0 0 auto;
      }

      .cta-panel h2,
      .notice-feature h2 {
        font-size: 25px;
      }

      .footer-brand {
        display: grid;
      }
    }