/* roulang page: index */
:root{
      --primary:#2f6fed;
      --primary-700:#1f56c9;
      --primary-50:#eef5ff;
      --cyan:#e8fbff;
      --indigo:#6366f1;
      --bg:#f7faff;
      --bg-soft:#f3f7fc;
      --surface:#ffffff;
      --text:#0f172a;
      --muted:#64748b;
      --muted-2:#94a3b8;
      --border:#e2e8f0;
      --border-strong:#cbd5e1;
      --warning:#fff7df;
      --warning-border:#f6d88b;
      --radius-sm:12px;
      --radius:18px;
      --radius-lg:24px;
      --radius-xl:32px;
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-sm:0 10px 28px rgba(15,23,42,.06);
      --shadow-hover:0 24px 60px rgba(15,23,42,.12);
      --container:1220px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 5%,rgba(47,111,237,.12),transparent 32%),
        radial-gradient(circle at 90% 14%,rgba(99,102,241,.10),transparent 30%),
        linear-gradient(180deg,#f7faff 0%,#fff 38%,#f7faff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer;background:none}
    input{border:0;outline:none}
    :focus-visible{outline:3px solid rgba(47,111,237,.28);outline-offset:3px}
    .container{width:min(100% - 64px,var(--container));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(226,232,240,.85);
    }
    .topbar{
      min-height:74px;
      display:grid;
      grid-template-columns:auto minmax(260px,520px) auto;
      align-items:center;
      gap:22px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),#7c8cff);
      display:grid;
      place-items:center;
      box-shadow:0 14px 30px rgba(47,111,237,.26);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      width:0;height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      margin-left:3px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-title{font-size:18px;font-weight:800;letter-spacing:-.02em}
    .brand-sub{font-size:12px;color:var(--muted);margin-top:3px}
    .search{
      height:48px;
      border:1px solid var(--border);
      border-radius:999px;
      background:#fff;
      display:flex;
      align-items:center;
      gap:10px;
      padding:0 16px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .search:hover,.search:focus-within{
      border-color:rgba(47,111,237,.55);
      box-shadow:0 0 0 5px rgba(47,111,237,.08),var(--shadow-sm);
    }
    .search svg{width:18px;height:18px;color:var(--muted)}
    .search input{width:100%;height:100%;color:var(--text);background:transparent}
    .search input::placeholder{color:#94a3b8}
    .header-actions{display:flex;align-items:center;gap:10px;justify-content:flex-end}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      font-size:14px;
      transition:var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#5d75f6);
      box-shadow:0 14px 28px rgba(47,111,237,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(47,111,237,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{
      color:var(--primary-700);
      background:#fff;
      border:1px solid var(--border);
    }
    .btn-secondary:hover{background:var(--primary-50);border-color:#bfdbfe;transform:translateY(-1px)}
    .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.72);
      border:1px solid var(--border);
    }
    .btn-ghost:hover{color:var(--primary-700);background:#fff;box-shadow:var(--shadow-sm)}
    .tabbar-wrap{border-top:1px solid rgba(226,232,240,.68)}
    .tabbar{
      display:flex;
      align-items:center;
      gap:10px;
      min-height:52px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:8px 0;
    }
    .tabbar::-webkit-scrollbar{display:none}
    .nav-tab{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 15px;
      border-radius:999px;
      color:#475569;
      font-weight:700;
      font-size:14px;
      border:1px solid transparent;
      flex:0 0 auto;
      transition:var(--ease);
    }
    .nav-tab:hover{color:var(--primary-700);background:var(--primary-50)}
    .nav-tab.active{
      color:var(--primary-700);
      background:#fff;
      border-color:#bfdbfe;
      box-shadow:0 8px 20px rgba(47,111,237,.10);
    }
    .hero{
      padding:76px 0 56px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:20px 0 auto;
      height:520px;
      background-image:
        linear-gradient(rgba(47,111,237,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(47,111,237,.06) 1px,transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg,#000,transparent 72%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(420px,.98fr);
      gap:54px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:var(--primary-700);
      background:rgba(238,245,255,.92);
      border:1px solid #cfe0ff;
      font-weight:800;
      font-size:13px;
      margin-bottom:18px;
    }
    .pulse-dot{
      width:8px;height:8px;border-radius:50%;
      background:#21b6d7;
      box-shadow:0 0 0 5px rgba(33,182,215,.12);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(34px,5vw,56px);
      line-height:1.16;
      letter-spacing:-.045em;
      margin-bottom:20px;
    }
    .hero-lead{
      font-size:18px;
      color:#475569;
      max-width:650px;
      margin-bottom:26px;
    }
    .hero-tools{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-bottom:24px;
    }
    .hero-search{
      flex:1 1 310px;
      max-width:460px;
      height:54px;
      border:1px solid #cbd5e1;
      border-radius:16px;
      background:#fff;
      display:flex;
      align-items:center;
      gap:10px;
      padding:0 16px;
      box-shadow:var(--shadow-sm);
    }
    .hero-search svg{width:18px;color:var(--primary)}
    .hero-search input{width:100%;height:100%;background:transparent}
    .quick-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
    .tag,.badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      border:1px solid var(--border);
      background:#fff;
      color:#475569;
      padding:7px 11px;
      font-size:13px;
      font-weight:700;
    }
    .tag:hover{border-color:#bfdbfe;color:var(--primary-700);background:var(--primary-50)}
    .preview{
      border-radius:30px;
      background:linear-gradient(180deg,#fff,rgba(255,255,255,.84));
      border:1px solid rgba(203,213,225,.86);
      box-shadow:var(--shadow);
      padding:20px;
      position:relative;
    }
    .preview:after{
      content:"";
      position:absolute;
      inset:auto 34px -18px 34px;
      height:44px;
      background:rgba(47,111,237,.10);
      filter:blur(24px);
      z-index:-1;
    }
    .player{
      aspect-ratio:16/9;
      border-radius:22px;
      overflow:hidden;
      background:
        radial-gradient(circle at 25% 25%,rgba(255,255,255,.85),transparent 25%),
        linear-gradient(135deg,#dbeafe,#eef2ff 45%,#f8fafc);
      position:relative;
      border:1px solid #e2e8f0;
    }
    .player-top{
      position:absolute;left:16px;right:16px;top:14px;
      display:flex;justify-content:space-between;align-items:center;
    }
    .window-dots{display:flex;gap:6px}
    .window-dots span{width:9px;height:9px;border-radius:50%;background:#b6c5db}
    .quality{font-size:12px;font-weight:800;color:#2563eb;background:#fff;border:1px solid #dbeafe;border-radius:999px;padding:5px 9px}
    .play-btn{
      position:absolute;left:50%;top:50%;
      transform:translate(-50%,-50%);
      width:68px;height:68px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 18px 34px rgba(47,111,237,.34);
      display:grid;place-items:center;
    }
    .play-btn:before{
      content:"";
      border-top:12px solid transparent;
      border-bottom:12px solid transparent;
      border-left:18px solid #fff;
      margin-left:5px;
    }
    .player-bars{
      position:absolute;left:18px;right:18px;bottom:16px;
      display:grid;gap:8px;
    }
    .bar{height:8px;border-radius:999px;background:rgba(255,255,255,.72)}
    .bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),#7c8cff)}
    .preview-bottom{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:14px;
    }
    .mini-panel{
      background:#fff;
      border:1px solid var(--border);
      border-radius:20px;
      padding:15px;
    }
    .mini-title{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:800;margin-bottom:12px}
    .mini-list{display:grid;gap:10px}
    .mini-item{display:flex;align-items:center;gap:10px;color:#64748b;font-size:13px}
    .thumb{
      width:42px;height:30px;border-radius:9px;
      background:linear-gradient(135deg,#bfdbfe,#eef2ff);
      flex:0 0 auto;
    }
    .section{padding:78px 0}
    .section-soft{background:linear-gradient(180deg,rgba(244,248,252,.86),rgba(255,255,255,.6))}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:var(--primary-700);
      font-size:13px;
      font-weight:900;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    h2{
      font-size:clamp(28px,3vw,38px);
      line-height:1.22;
      letter-spacing:-.035em;
      margin-bottom:10px;
    }
    .section-desc{
      color:var(--muted);
      max-width:680px;
      margin-bottom:0;
    }
    .flow{
      display:grid;
      grid-template-columns:1.1fr .9fr 1.1fr .9fr;
      gap:16px;
      align-items:stretch;
    }
    .flow-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-sm);
      position:relative;
      transition:var(--ease);
    }
    .flow-card:hover,.feature-card:hover,.metric-card:hover,.plan-card:hover,.scenario-item:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:#c7d9ff;
    }
    .flow-no{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#7c8cff);
      font-weight:900;
      margin-bottom:16px;
    }
    .flow-card h3{font-size:20px;line-height:1.3;margin-bottom:8px}
    .flow-card p{color:var(--muted);margin:0;font-size:15px}
    .feature-grid{
      display:grid;
      grid-template-columns:1.35fr .85fr;
      gap:18px;
    }
    .feature-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      overflow:hidden;
    }
    .feature-card.large{
      min-height:420px;
      background:
        linear-gradient(180deg,rgba(238,245,255,.94),#fff 50%),
        #fff;
    }
    .feature-stack{display:grid;gap:18px}
    .filter-board{
      margin-top:22px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .filter-block{
      border:1px solid #dbeafe;
      background:#fff;
      border-radius:18px;
      padding:16px;
    }
    .filter-block strong{display:block;margin-bottom:11px}
    .pill-row{display:flex;flex-wrap:wrap;gap:8px}
    .pill{
      padding:7px 10px;
      border-radius:999px;
      background:#f8fafc;
      border:1px solid var(--border);
      color:#475569;
      font-size:12px;
      font-weight:800;
    }
    .pill.active{background:var(--primary-50);color:var(--primary-700);border-color:#bfdbfe}
    .device-strip{
      margin-top:22px;
      display:flex;
      gap:12px;
      align-items:end;
    }
    .device{
      flex:1;
      border:1px solid #dbeafe;
      background:#fff;
      border-radius:18px 18px 10px 10px;
      padding:14px;
      min-height:116px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .device.phone{flex:.55;min-height:142px}
    .device .screen-line{height:8px;border-radius:999px;background:#dbeafe;margin:6px 0}
    .scenario{
      display:grid;
      grid-template-columns:300px 1fr;
      gap:24px;
      align-items:start;
    }
    .scenario-note{
      position:sticky;
      top:150px;
      background:#0f172a;
      color:#e2e8f0;
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow);
    }
    .scenario-note h2{color:#fff;font-size:30px}
    .scenario-note p{color:#cbd5e1}
    .scenario-list{display:grid;gap:14px}
    .scenario-item{
      display:grid;
      grid-template-columns:64px 1fr auto;
      gap:18px;
      align-items:center;
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      padding:18px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .scenario-icon{
      width:64px;height:64px;border-radius:18px;
      background:linear-gradient(135deg,#eef5ff,#e8fbff);
      display:grid;place-items:center;
      color:var(--primary);
      font-weight:900;
      font-size:22px;
    }
    .scenario-item h3{font-size:18px;margin-bottom:4px}
    .scenario-item p{margin:0;color:var(--muted);font-size:14px}
    .arrow{color:var(--primary);font-weight:900}
    .metrics{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .metric-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .metric-num{
      font-size:36px;
      line-height:1;
      font-weight:900;
      color:var(--primary-700);
      letter-spacing:-.04em;
      margin-bottom:12px;
    }
    .metric-card p{color:var(--muted);margin:0;font-size:14px}
    .plans{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .plan-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .plan-card.featured{border-color:#bfdbfe;background:linear-gradient(180deg,var(--primary-50),#fff 46%)}
    .plan-label{
      position:absolute;
      right:18px;top:18px;
      background:var(--primary);
      color:#fff;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
      padding:5px 9px;
    }
    .plan-card h3{font-size:22px;margin-bottom:8px}
    .plan-card p{color:var(--muted);margin-bottom:18px}
    .check-list{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:10px}
    .check-list li{display:flex;gap:10px;color:#475569;font-size:14px}
    .check-list li:before{content:"✓";color:#0ea5e9;font-weight:900}
    .notice{
      background:var(--warning);
      border:1px solid var(--warning-border);
      border-radius:var(--radius-lg);
      padding:24px;
      display:grid;
      grid-template-columns:auto 1fr;
      gap:16px;
      align-items:start;
    }
    .notice-icon{
      width:44px;height:44px;border-radius:14px;
      background:#fff;
      display:grid;place-items:center;
      color:#a16207;
      font-weight:900;
    }
    .notice h2{font-size:26px;margin-bottom:6px}
    .notice p{margin:0;color:#6b5b28}
    .faq-wrap{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:start;
    }
    .faq-list{display:grid;gap:12px}
    details{
      background:#fff;
      border:1px solid var(--border);
      border-radius:18px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:800;
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;height:28px;border-radius:50%;
      background:var(--primary-50);
      color:var(--primary-700);
      display:grid;place-items:center;
      flex:0 0 auto;
      transition:var(--ease);
    }
    details[open] summary:after{content:"−";background:var(--primary);color:#fff}
    details p{
      padding:0 20px 18px;
      margin:0;
      color:var(--muted);
      border-top:1px solid #f1f5f9;
      padding-top:14px;
    }
    .cta{
      background:
        radial-gradient(circle at 10% 20%,rgba(255,255,255,.75),transparent 32%),
        linear-gradient(135deg,#eef5ff,#ffffff 48%,#e8fbff);
      border:1px solid #cfe0ff;
      border-radius:32px;
      padding:34px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      box-shadow:var(--shadow);
    }
    .cta h2{margin-bottom:8px}
    .cta p{margin:0;color:var(--muted);max-width:680px}
    .site-footer{
      background:#0f172a;
      color:#cbd5e1;
      padding:58px 0 24px;
      margin-top:50px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .8fr 1fr;
      gap:28px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(203,213,225,.14);
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .footer-brand .brand-mark{box-shadow:none}
    .footer-brand strong{color:#fff;font-size:18px}
    .footer-col h3{
      color:#fff;
      font-size:15px;
      margin-bottom:14px;
    }
    .footer-col p{margin:0;color:#94a3b8;font-size:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:#94a3b8;font-size:14px;transition:var(--ease)}
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      color:#94a3b8;
      font-size:14px;
      flex-wrap:wrap;
    }
    @media (max-width:1100px){
      .topbar{grid-template-columns:1fr;gap:12px}
      .header-actions{justify-content:flex-start}
      .hero-grid{grid-template-columns:1fr;gap:34px}
      .preview{max-width:720px}
      .flow{grid-template-columns:repeat(2,1fr)}
      .feature-grid,.scenario,.faq-wrap{grid-template-columns:1fr}
      .scenario-note{position:relative;top:auto}
      .metrics{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:780px){
      .container{width:min(100% - 32px,var(--container))}
      .hero{padding:48px 0 34px}
      .section{padding:56px 0}
      .section-head{display:block}
      .hero-tools{display:grid}
      .hero-search,.btn{width:100%;max-width:none}
      .preview-bottom,.filter-board,.plans,.footer-grid{grid-template-columns:1fr}
      .scenario-item{grid-template-columns:52px 1fr}
      .scenario-item .arrow{display:none}
      .scenario-icon{width:52px;height:52px;border-radius:16px;font-size:18px}
      .cta{display:block;padding:26px}
      .cta .header-actions{margin-top:20px;display:grid}
      .metrics{grid-template-columns:1fr}
      .topbar{min-height:auto}
      .search{order:3;width:100%}
    }
    @media (max-width:520px){
      .container{width:min(100% - 24px,var(--container))}
      h1{font-size:32px}
      h2{font-size:27px}
      .brand-title{font-size:16px}
      .brand-sub{display:none}
      .header-actions{display:grid;grid-template-columns:1fr 1fr;width:100%}
      .header-actions .btn{padding:0 12px;font-size:13px}
      .tabbar{padding-bottom:10px}
      .flow{grid-template-columns:1fr}
      .preview{padding:14px;border-radius:24px}
      .play-btn{width:56px;height:56px}
      .feature-card,.flow-card,.metric-card,.plan-card{padding:20px}
      .notice{grid-template-columns:1fr}
      .copyright{display:block}
    }

/* roulang page: category2 */
:root{
      --primary:#2f6fed;
      --primary-dark:#1d4ed8;
      --primary-soft:#eaf2ff;
      --cyan:#dff8ff;
      --indigo:#6366f1;
      --bg:#f7faff;
      --bg-2:#f4f8fc;
      --surface:#ffffff;
      --text:#0f172a;
      --muted:#64748b;
      --muted-2:#94a3b8;
      --border:#e2e8f0;
      --border-strong:#cbd5e1;
      --warning:#fff7df;
      --warning-border:#f6d98d;
      --success:#eafaf2;
      --radius-sm:12px;
      --radius:18px;
      --radius-lg:24px;
      --radius-xl:32px;
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-hover:0 22px 55px rgba(15,23,42,.12);
      --container:1200px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 4%,rgba(47,111,237,.11),transparent 32%),
        radial-gradient(circle at 88% 18%,rgba(99,102,241,.08),transparent 28%),
        linear-gradient(180deg,#fbfdff 0%,var(--bg) 42%,#fff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    input,button,a{ -webkit-tap-highlight-color:transparent; }
    ::selection{background:rgba(47,111,237,.18)}
    .container{
      width:min(100% - 64px,var(--container));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(226,232,240,.78);
    }
    .topbar{
      min-height:74px;
      display:grid;
      grid-template-columns:auto minmax(280px,1fr) auto;
      gap:22px;
      align-items:center;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:242px;
      border-radius:16px;
      transition:var(--ease);
    }
    .brand:hover{transform:translateY(-1px)}
    .brand:focus-visible,.nav-tab:focus-visible,.btn:focus-visible,.search input:focus-visible,.footer-links a:focus-visible,.guide-link:focus-visible{
      outline:3px solid rgba(47,111,237,.26);
      outline-offset:3px;
    }
    .brand-mark{
      width:44px;
      height:44px;
      flex:0 0 auto;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),#67d4ff);
      box-shadow:0 10px 24px rgba(47,111,237,.24);
      position:relative;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      left:17px;
      top:13px;
      width:0;
      height:0;
      border-top:9px solid transparent;
      border-bottom:9px solid transparent;
      border-left:13px solid #fff;
      filter:drop-shadow(0 2px 4px rgba(15,23,42,.18));
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:7px;
      border:1px solid rgba(255,255,255,.55);
      border-radius:11px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-title{font-size:18px;font-weight:800;letter-spacing:-.02em}
    .brand-sub{font-size:12px;color:var(--muted);margin-top:4px}
    .search{
      height:48px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:999px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:0 16px;
      box-shadow:0 8px 22px rgba(15,23,42,.04);
      transition:var(--ease);
    }
    .search svg{width:20px;height:20px;color:var(--muted)}
    .search:focus-within{
      border-color:rgba(47,111,237,.72);
      box-shadow:0 0 0 4px rgba(47,111,237,.12);
    }
    .search input{
      width:100%;
      border:0;
      outline:0;
      color:var(--text);
      background:transparent;
      min-width:0;
    }
    .search input::placeholder{color:#94a3b8}
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      white-space:nowrap;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
      cursor:pointer;
      transition:var(--ease);
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 12px 24px rgba(47,111,237,.23);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(47,111,237,.3)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{
      color:var(--primary-dark);
      background:#fff;
      border-color:var(--border);
    }
    .btn-secondary:hover{background:var(--primary-soft);border-color:#bfdbfe;transform:translateY(-1px)}
    .btn-ghost{
      color:var(--primary-dark);
      background:var(--primary-soft);
      border-color:#d6e6ff;
    }
    .btn-ghost:hover{background:#dfeeff;transform:translateY(-1px)}
    .tabbar-wrap{
      border-top:1px solid rgba(226,232,240,.62);
      background:rgba(248,251,255,.86);
    }
    .tabbar{
      min-height:52px;
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .tabbar::-webkit-scrollbar{display:none}
    .nav-tab{
      display:inline-flex;
      align-items:center;
      height:36px;
      padding:0 16px;
      border-radius:999px;
      color:#475569;
      font-size:14px;
      font-weight:700;
      border:1px solid transparent;
      white-space:nowrap;
      transition:var(--ease);
    }
    .nav-tab:hover{color:var(--primary-dark);background:#fff;border-color:var(--border)}
    .nav-tab.active{
      color:var(--primary-dark);
      background:var(--primary-soft);
      border-color:#cfe0ff;
      box-shadow:0 8px 18px rgba(47,111,237,.1);
    }
    main{display:block}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:800;
      box-shadow:0 8px 20px rgba(15,23,42,.04);
    }
    .eyebrow:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(47,111,237,.12);
    }
    .breadcrumb{
      padding-top:28px;
      font-size:13px;
      color:var(--muted);
      display:flex;
      gap:8px;
      align-items:center;
      flex-wrap:wrap;
    }
    .breadcrumb a{transition:var(--ease)}
    .breadcrumb a:hover{color:var(--primary-dark)}
    .hero{
      padding:48px 0 72px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(47,111,237,.05) 1px,transparent 1px),
        linear-gradient(90deg,rgba(47,111,237,.05) 1px,transparent 1px);
      background-size:32px 32px;
      mask-image:linear-gradient(180deg,#000 0%,transparent 74%);
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(340px,.78fr);
      gap:42px;
      align-items:center;
    }
    h1{
      font-size:clamp(34px,4.5vw,54px);
      line-height:1.16;
      letter-spacing:-.05em;
      margin-top:18px;
      max-width:760px;
    }
    .hero-desc{
      margin-top:20px;
      color:#475569;
      font-size:18px;
      max-width:720px;
    }
    .hero-actions{
      margin-top:30px;
      display:flex;
      gap:14px;
      flex-wrap:wrap;
    }
    .quick-panel{
      margin-top:30px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:36px;
      padding:0 13px;
      border-radius:999px;
      border:1px solid var(--border);
      background:#fff;
      color:#475569;
      font-size:13px;
      font-weight:700;
      box-shadow:0 8px 18px rgba(15,23,42,.04);
      transition:var(--ease);
    }
    .pill:hover{border-color:#bfdbfe;color:var(--primary-dark);transform:translateY(-1px)}
    .pill.active{background:var(--primary-soft);color:var(--primary-dark);border-color:#cfe0ff}
    .guide-preview{
      border:1px solid var(--border);
      background:rgba(255,255,255,.88);
      border-radius:var(--radius-xl);
      padding:22px;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .guide-preview:before{
      content:"";
      position:absolute;
      width:180px;
      height:180px;
      border-radius:50%;
      background:rgba(103,212,255,.28);
      right:-80px;
      top:-70px;
    }
    .preview-screen{
      position:relative;
      border:1px solid #dbeafe;
      border-radius:24px;
      background:linear-gradient(180deg,#f9fcff,#eef6ff);
      padding:18px;
      min-height:360px;
    }
    .screen-top{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      margin-bottom:18px;
    }
    .dots{display:flex;gap:6px}
    .dots span{width:9px;height:9px;border-radius:50%;background:#bfdbfe}
    .screen-badge{
      font-size:12px;
      color:var(--primary-dark);
      font-weight:800;
      background:#fff;
      border:1px solid #dbeafe;
      padding:5px 10px;
      border-radius:999px;
    }
    .video-frame{
      aspect-ratio:16/9;
      border-radius:20px;
      background:
        radial-gradient(circle at 28% 30%,rgba(99,102,241,.22),transparent 28%),
        linear-gradient(135deg,#dbeafe,#eff6ff 45%,#e0f2fe);
      border:1px solid #cfe0ff;
      display:grid;
      place-items:center;
      position:relative;
      overflow:hidden;
    }
    .video-frame:after{
      content:"";
      position:absolute;
      inset:auto 18px 16px 18px;
      height:8px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary) 0 42%,#cbd5e1 42% 100%);
    }
    .play{
      width:58px;
      height:58px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 14px 28px rgba(47,111,237,.28);
      position:relative;
    }
    .play:before{
      content:"";
      position:absolute;
      left:23px;
      top:18px;
      border-top:11px solid transparent;
      border-bottom:11px solid transparent;
      border-left:16px solid #fff;
    }
    .preview-list{display:grid;gap:12px;margin-top:18px}
    .preview-item{
      display:grid;
      grid-template-columns:38px 1fr auto;
      gap:12px;
      align-items:center;
      background:#fff;
      border:1px solid var(--border);
      border-radius:16px;
      padding:12px;
    }
    .preview-icon{
      width:38px;height:38px;border-radius:13px;background:var(--primary-soft);
      display:grid;place-items:center;color:var(--primary-dark);font-weight:900;
    }
    .preview-item strong{font-size:14px}
    .preview-item span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .mini-tag{font-size:12px;color:var(--primary-dark);font-weight:800;background:#eef6ff;border-radius:999px;padding:5px 9px}
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:24px;
      align-items:flex-end;
      margin-bottom:32px;
    }
    .section-head h2{
      font-size:clamp(28px,3vw,38px);
      line-height:1.2;
      letter-spacing:-.04em;
      max-width:720px;
    }
    .section-head p{
      color:var(--muted);
      max-width:480px;
      font-size:16px;
    }
    .guide-layout{
      display:grid;
      grid-template-columns:270px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .anchor-card{
      position:sticky;
      top:146px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:18px;
      box-shadow:0 12px 32px rgba(15,23,42,.06);
    }
    .anchor-card h2{
      font-size:18px;
      margin-bottom:12px;
      letter-spacing:-.02em;
    }
    .anchor-list{
      display:grid;
      gap:8px;
      list-style:none;
    }
    .anchor-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:10px 12px;
      border-radius:14px;
      color:#475569;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .anchor-list a:hover,.anchor-list a.active{
      background:var(--primary-soft);
      color:var(--primary-dark);
    }
    .anchor-list a span:last-child{color:var(--muted-2);font-size:12px}
    .steps{
      display:grid;
      gap:18px;
    }
    .step-card{
      display:grid;
      grid-template-columns:70px 1fr;
      gap:18px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:0 12px 34px rgba(15,23,42,.055);
      transition:var(--ease);
      scroll-margin-top:160px;
    }
    .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#d4e3fb}
    .step-num{
      width:58px;height:58px;border-radius:18px;
      background:linear-gradient(135deg,var(--primary-soft),#fff);
      border:1px solid #dbeafe;
      display:grid;place-items:center;
      color:var(--primary-dark);
      font-weight:900;
      font-size:20px;
    }
    .step-card h3{
      font-size:22px;
      line-height:1.28;
      margin-bottom:8px;
      letter-spacing:-.03em;
    }
    .step-card p{color:var(--muted);margin-bottom:14px}
    .check-list{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#334155;
      font-size:15px;
    }
    .check-list li:before{
      content:"";
      width:18px;height:18px;
      margin-top:4px;
      flex:0 0 auto;
      border-radius:50%;
      background:var(--success);
      border:1px solid #bbf7d0;
      position:relative;
    }
    .check-list li span{display:block}
    .device-board{
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      background:#fff;
      box-shadow:var(--shadow);
      padding:28px;
      overflow:hidden;
    }
    .device-row{
      display:grid;
      grid-template-columns:1.1fr .85fr .65fr;
      gap:18px;
      align-items:stretch;
    }
    .device-card{
      min-height:240px;
      border:1px solid #dbeafe;
      border-radius:24px;
      background:linear-gradient(180deg,#fbfdff,#f1f7ff);
      padding:18px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .device-card:hover{transform:translateY(-3px);box-shadow:0 18px 35px rgba(47,111,237,.12)}
    .device-card:before{
      content:"";
      position:absolute;
      right:-35px;
      top:-35px;
      width:110px;height:110px;border-radius:50%;
      background:rgba(47,111,237,.08);
    }
    .device-frame{
      position:relative;
      border:2px solid #cbd5e1;
      background:#fff;
      box-shadow:inset 0 0 0 1px #eff6ff;
      overflow:hidden;
      margin-bottom:18px;
    }
    .desktop .device-frame{height:126px;border-radius:16px}
    .tablet .device-frame{height:128px;border-radius:18px;width:82%;margin-inline:auto}
    .mobile .device-frame{height:138px;border-radius:22px;width:58%;margin-inline:auto}
    .device-bars{
      position:absolute;
      inset:14px;
      display:grid;
      gap:8px;
      align-content:start;
    }
    .device-bars span{
      height:10px;
      border-radius:999px;
      background:#dbeafe;
    }
    .device-bars span:nth-child(1){width:74%;background:#bfdbfe}
    .device-bars span:nth-child(2){width:52%}
    .device-bars span:nth-child(3){width:88%}
    .device-card h3{font-size:20px;margin-bottom:6px}
    .device-card p{color:var(--muted);font-size:14px}
    .trouble-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .status-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      padding:20px;
      box-shadow:0 12px 28px rgba(15,23,42,.05);
      transition:var(--ease);
    }
    .status-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .status-icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:900;
      margin-bottom:14px;
    }
    .status-card h3{font-size:18px;margin-bottom:8px}
    .status-card p{color:var(--muted);font-size:14px}
    .notice{
      border:1px solid var(--warning-border);
      background:linear-gradient(135deg,var(--warning),#fff);
      border-radius:var(--radius-lg);
      padding:24px;
      display:grid;
      grid-template-columns:auto 1fr;
      gap:18px;
      align-items:start;
    }
    .notice-icon{
      width:48px;height:48px;border-radius:16px;background:#fff3c4;
      display:grid;place-items:center;color:#a16207;font-weight:900;
      border:1px solid #fde68a;
    }
    .notice h2{font-size:24px;margin-bottom:8px;letter-spacing:-.03em}
    .notice p{color:#6b5b24}
    .faq-wrap{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:34px;
      align-items:start;
    }
    .faq-intro{
      background:linear-gradient(180deg,#fff,#f4f8ff);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:0 12px 30px rgba(15,23,42,.05);
    }
    .faq-intro h2{font-size:32px;line-height:1.2;letter-spacing:-.04em;margin-bottom:12px}
    .faq-intro p{color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-radius:18px;
      overflow:hidden;
      box-shadow:0 8px 24px rgba(15,23,42,.045);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:800;
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:center;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:26px;height:26px;border-radius:50%;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-item[open] summary:after{content:"−";transform:rotate(180deg)}
    .faq-item p{
      padding:0 20px 18px;
      color:var(--muted);
      border-top:1px solid rgba(226,232,240,.7);
      padding-top:14px;
    }
    .cta{
      background:
        radial-gradient(circle at 16% 22%,rgba(255,255,255,.78),transparent 28%),
        linear-gradient(135deg,#eaf2ff,#f8fbff 58%,#e0f2fe);
      border:1px solid #dbeafe;
      border-radius:32px;
      padding:34px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      box-shadow:var(--shadow);
    }
    .cta h2{font-size:30px;line-height:1.2;letter-spacing:-.04em;margin-bottom:8px}
    .cta p{color:#475569;max-width:720px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .site-footer{
      margin-top:50px;
      background:#0f172a;
      color:#cbd5e1;
      padding:58px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .8fr .8fr 1fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(148,163,184,.22);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px;border-radius:14px}
    .footer-col h3{
      color:#fff;
      font-size:16px;
      margin-bottom:14px;
    }
    .footer-col p{
      color:#94a3b8;
      font-size:14px;
      max-width:360px;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:#94a3b8;
      font-size:14px;
      transition:var(--ease);
      width:max-content;
      border-radius:8px;
    }
    .footer-links a:hover{color:#93c5fd;transform:translateX(2px)}
    .copyright{
      padding-top:22px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:#94a3b8;
      font-size:13px;
    }
    @media (max-width:1100px){
      .topbar{grid-template-columns:auto 1fr;gap:16px}
      .search{grid-column:1 / -1;order:3;margin-bottom:12px}
      .header-actions{justify-content:flex-end}
      .hero-grid{grid-template-columns:1fr;gap:30px}
      .guide-preview{max-width:640px}
      .trouble-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:900px){
      .container{width:min(100% - 48px,var(--container))}
      .section{padding:66px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .guide-layout{grid-template-columns:1fr}
      .anchor-card{
        position:relative;
        top:auto;
        overflow:hidden;
      }
      .anchor-list{
        display:flex;
        overflow-x:auto;
        gap:8px;
        padding-bottom:3px;
        scrollbar-width:none;
      }
      .anchor-list::-webkit-scrollbar{display:none}
      .anchor-list a{white-space:nowrap}
      .device-row{grid-template-columns:1fr}
      .faq-wrap{grid-template-columns:1fr}
      .cta{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:720px){
      .container{width:min(100% - 32px,var(--container))}
      .topbar{
        min-height:auto;
        padding:14px 0;
        grid-template-columns:1fr;
      }
      .brand{min-width:0}
      .brand-title{font-size:16px}
      .header-actions{justify-content:flex-start;overflow-x:auto;padding-bottom:2px}
      .header-actions .btn{min-height:40px;padding:0 14px}
      .tabbar{min-height:50px}
      .hero{padding:32px 0 56px}
      .hero-desc{font-size:16px}
      .hero-actions .btn{width:100%}
      .quick-panel{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
      .pill{white-space:nowrap}
      .guide-preview{padding:16px;border-radius:24px}
      .preview-screen{min-height:auto;padding:14px}
      .preview-item{grid-template-columns:34px 1fr}
      .preview-item .mini-tag{grid-column:2}
      .step-card{grid-template-columns:1fr;padding:20px}
      .step-num{width:52px;height:52px}
      .trouble-grid{grid-template-columns:1fr}
      .notice{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:460px){
      h1{font-size:32px}
      .section{padding:54px 0}
      .search{height:46px;border-radius:16px}
      .hero-actions{gap:10px}
      .preview-list{display:none}
      .device-card{min-height:210px}
      .cta{padding:24px;border-radius:24px}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --primary:#2563eb;
      --primary-600:#1d4ed8;
      --primary-50:#eff6ff;
      --primary-100:#dbeafe;
      --cyan:#0ea5e9;
      --indigo:#6366f1;
      --amber:#f59e0b;
      --bg:#f7faff;
      --bg-soft:#f4f8fc;
      --surface:#ffffff;
      --surface-2:#fbfdff;
      --text:#0f172a;
      --muted:#64748b;
      --muted-2:#94a3b8;
      --border:#e2e8f0;
      --border-strong:#cbd5e1;
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-soft:0 10px 28px rgba(37,99,235,.08);
      --radius:22px;
      --radius-sm:14px;
      --radius-pill:999px;
      --container:1200px;
      --header-h:72px;
      --ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 0%, rgba(37,99,235,.10), transparent 32rem),
        radial-gradient(circle at 86% 12%, rgba(14,165,233,.09), transparent 28rem),
        linear-gradient(180deg,#f7faff 0%,#ffffff 38%,#f4f8fc 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    input{min-width:0}
    ::selection{background:var(--primary-100);color:var(--primary-600)}
    .container{
      width:min(100% - 64px,var(--container));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.94);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(226,232,240,.86);
    }
    .topbar{
      min-height:var(--header-h);
      display:grid;
      grid-template-columns:auto minmax(260px,1fr) auto;
      align-items:center;
      gap:22px;
      padding-block:12px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      border-radius:18px;
      outline:none;
    }
    .brand:focus-visible,.nav-tab:focus-visible,.btn:focus-visible,.search input:focus-visible,.filter-pill:focus-visible,.card-link:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(37,99,235,.22);
      outline-offset:3px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:
        linear-gradient(135deg,var(--primary),var(--cyan));
      position:relative;
      box-shadow:0 12px 28px rgba(37,99,235,.20);
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      inset:11px 10px 11px 14px;
      background:#fff;
      clip-path:polygon(0 0,100% 50%,0 100%);
      border-radius:3px;
    }
    .brand-title{
      display:block;
      font-weight:800;
      font-size:17px;
      letter-spacing:.2px;
      line-height:1.18;
    }
    .brand-sub{
      display:block;
      margin-top:2px;
      color:var(--muted);
      font-size:12px;
      line-height:1.2;
    }
    .search{
      height:48px;
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      background:var(--surface-2);
      border:1px solid var(--border);
      border-radius:var(--radius-pill);
      padding:0 16px;
      box-shadow:0 8px 20px rgba(15,23,42,.035);
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    .search:focus-within{
      border-color:rgba(37,99,235,.55);
      background:#fff;
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
    }
    .search svg{width:20px;height:20px;flex:0 0 auto}
    .search input{
      width:100%;
      height:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      font-size:14px;
    }
    .search input::placeholder{color:#94a3b8}
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:0 18px;
      border-radius:var(--radius-pill);
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
      line-height:1;
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 14px 28px rgba(37,99,235,.22);
    }
    .btn-primary:hover{background:var(--primary-600);box-shadow:0 18px 34px rgba(37,99,235,.26)}
    .btn-secondary{
      background:#fff;
      color:var(--primary-600);
      border-color:var(--border);
      box-shadow:0 8px 18px rgba(15,23,42,.04);
    }
    .btn-secondary:hover{background:var(--primary-50);border-color:#bfdbfe}
    .btn-soft{
      background:var(--primary-50);
      color:var(--primary-600);
      border-color:#bfdbfe;
    }
    .btn-soft:hover{background:#dbeafe}
    .tabbar-wrap{
      border-top:1px solid rgba(226,232,240,.72);
      background:rgba(247,250,255,.72);
    }
    .tabbar{
      display:flex;
      gap:10px;
      align-items:center;
      min-height:52px;
      overflow-x:auto;
      scrollbar-width:none;
      -webkit-overflow-scrolling:touch;
    }
    .tabbar::-webkit-scrollbar{display:none}
    .nav-tab{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:36px;
      padding:0 16px;
      border-radius:var(--radius-pill);
      color:#475569;
      font-weight:700;
      font-size:14px;
      border:1px solid transparent;
      transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
    }
    .nav-tab:hover{
      color:var(--primary-600);
      background:#fff;
      border-color:var(--border);
    }
    .nav-tab.active{
      color:var(--primary-600);
      background:#fff;
      border-color:#bfdbfe;
      box-shadow:0 8px 20px rgba(37,99,235,.10);
    }

    main{position:relative}
    .breadcrumb{
      margin-top:28px;
      color:var(--muted);
      font-size:13px;
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
    }
    .breadcrumb a{transition:color var(--ease)}
    .breadcrumb a:hover{color:var(--primary-600)}
    .breadcrumb span:last-child{color:#334155;font-weight:700}
    .category-hero{
      padding:36px 0 54px;
    }
    .hero-panel{
      display:grid;
      grid-template-columns:1.04fr .96fr;
      gap:30px;
      align-items:stretch;
      min-height:430px;
      padding:34px;
      border:1px solid rgba(191,219,254,.82);
      border-radius:32px;
      background:
        linear-gradient(135deg,rgba(239,246,255,.96),rgba(255,255,255,.96) 52%,rgba(240,249,255,.94)),
        radial-gradient(circle at 80% 8%, rgba(99,102,241,.14), transparent 18rem);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(37,99,235,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.055) 1px, transparent 1px);
      background-size:28px 28px;
      mask-image:linear-gradient(90deg,rgba(0,0,0,.75),transparent 76%);
      pointer-events:none;
    }
    .hero-copy,.hero-tools{position:relative;z-index:1}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:6px 12px;
      border-radius:var(--radius-pill);
      background:#fff;
      color:var(--primary-600);
      border:1px solid #bfdbfe;
      box-shadow:0 8px 18px rgba(37,99,235,.08);
      font-weight:800;
      font-size:13px;
      margin-bottom:18px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--cyan);
      box-shadow:0 0 0 5px rgba(14,165,233,.12);
    }
    h1{
      margin:0;
      font-size:clamp(32px,4.2vw,52px);
      line-height:1.16;
      letter-spacing:-.8px;
    }
    .hero-copy p{
      margin:18px 0 0;
      max-width:670px;
      color:#475569;
      font-size:17px;
    }
    .hero-quick{
      margin-top:26px;
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }
    .hero-meta{
      margin-top:26px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .meta-box{
      padding:15px;
      border:1px solid var(--border);
      border-radius:18px;
      background:rgba(255,255,255,.82);
      box-shadow:0 8px 20px rgba(15,23,42,.04);
    }
    .meta-box strong{
      display:block;
      font-size:20px;
      color:var(--primary-600);
      line-height:1.2;
    }
    .meta-box span{
      display:block;
      margin-top:4px;
      color:var(--muted);
      font-size:13px;
    }
    .hero-tools{
      align-self:stretch;
      display:flex;
      flex-direction:column;
      gap:16px;
    }
    .tool-card{
      border:1px solid var(--border);
      border-radius:24px;
      background:rgba(255,255,255,.90);
      box-shadow:0 16px 35px rgba(15,23,42,.07);
      padding:22px;
    }
    .tool-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-bottom:16px;
    }
    .tool-head h2{
      margin:0;
      font-size:20px;
      line-height:1.25;
    }
    .status-badge{
      flex:0 0 auto;
      padding:5px 10px;
      border-radius:var(--radius-pill);
      background:#ecfeff;
      color:#0369a1;
      border:1px solid #bae6fd;
      font-weight:800;
      font-size:12px;
    }
    .filter-search{
      display:flex;
      gap:10px;
      align-items:center;
      height:48px;
      padding:0 14px;
      border:1px solid var(--border);
      border-radius:16px;
      background:#f8fbff;
      color:var(--muted);
      transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
    }
    .filter-search:focus-within{
      background:#fff;
      border-color:rgba(37,99,235,.55);
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
    }
    .filter-search svg{width:19px;height:19px;flex:0 0 auto}
    .filter-search input{
      width:100%;
      height:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      font-size:14px;
    }
    .mini-panel{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .mini-item{
      padding:14px;
      border-radius:18px;
      background:linear-gradient(180deg,#fff,#f8fbff);
      border:1px solid var(--border);
    }
    .mini-item span{
      display:inline-flex;
      width:34px;
      height:34px;
      align-items:center;
      justify-content:center;
      border-radius:13px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--indigo));
      margin-bottom:10px;
      font-weight:900;
    }
    .mini-item strong{display:block;font-size:14px}
    .mini-item small{display:block;color:var(--muted);margin-top:3px}

    .section{
      padding:78px 0;
    }
    .section.alt{
      background:linear-gradient(180deg,rgba(244,248,252,.62),rgba(255,255,255,.74));
      border-block:1px solid rgba(226,232,240,.72);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:var(--primary-600);
      font-size:13px;
      font-weight:900;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    h2{
      margin:0;
      font-size:clamp(27px,3vw,36px);
      line-height:1.22;
      letter-spacing:-.45px;
    }
    .section-head p{
      margin:0;
      max-width:520px;
      color:var(--muted);
      font-size:15px;
    }
    .filter-board{
      display:grid;
      grid-template-columns:280px 1fr;
      gap:24px;
      align-items:start;
    }
    .filter-aside{
      position:sticky;
      top:142px;
      border:1px solid var(--border);
      border-radius:24px;
      background:#fff;
      box-shadow:var(--shadow-soft);
      padding:22px;
    }
    .filter-aside h2{
      font-size:22px;
      margin-bottom:6px;
    }
    .filter-aside p{
      margin:0 0 18px;
      color:var(--muted);
      font-size:14px;
    }
    .filter-group + .filter-group{margin-top:20px}
    .filter-title{
      display:block;
      margin-bottom:10px;
      font-size:13px;
      font-weight:900;
      color:#334155;
    }
    .filter-pills{
      display:flex;
      gap:9px;
      flex-wrap:wrap;
    }
    .filter-pill{
      border:1px solid var(--border);
      border-radius:var(--radius-pill);
      background:#fff;
      color:#475569;
      padding:8px 12px;
      font-size:13px;
      font-weight:700;
      transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
    }
    .filter-pill:hover{
      transform:translateY(-1px);
      color:var(--primary-600);
      border-color:#bfdbfe;
      background:var(--primary-50);
    }
    .filter-pill.active{
      background:var(--primary);
      color:#fff;
      border-color:var(--primary);
      box-shadow:0 10px 20px rgba(37,99,235,.18);
    }
    .entry-area{
      min-width:0;
    }
    .top-entry{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      margin-bottom:18px;
    }
    .featured-card,.side-reco,.content-card,.notice-card,.path-card,.faq-item,.cta-panel{
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:var(--shadow-soft);
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
    }
    .featured-card:hover,.side-reco:hover,.content-card:hover,.path-card:hover{
      transform:translateY(-3px);
      border-color:#bfdbfe;
      box-shadow:var(--shadow);
    }
    .featured-card{
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr .9fr;
      min-height:260px;
    }
    .cover{
      position:relative;
      min-height:210px;
      background:
        radial-gradient(circle at 30% 28%,rgba(255,255,255,.68),transparent 18%),
        linear-gradient(135deg,#dbeafe,#e0f2fe 42%,#eef2ff);
      overflow:hidden;
    }
    .cover:before,.thumb:before{
      content:"";
      position:absolute;
      width:170px;
      height:170px;
      border-radius:42px;
      right:-42px;
      top:-42px;
      background:rgba(37,99,235,.15);
      transform:rotate(18deg);
    }
    .cover:after,.thumb:after{
      content:"";
      position:absolute;
      left:50%;
      top:50%;
      width:58px;
      height:58px;
      border-radius:50%;
      transform:translate(-50%,-50%);
      background:#fff;
      box-shadow:0 14px 30px rgba(37,99,235,.20);
    }
    .play-triangle{
      position:absolute;
      z-index:2;
      left:calc(50% + 4px);
      top:50%;
      width:18px;
      height:22px;
      transform:translate(-50%,-50%);
      background:var(--primary);
      clip-path:polygon(0 0,100% 50%,0 100%);
    }
    .cover-lines{
      position:absolute;
      left:24px;
      bottom:22px;
      right:24px;
      display:grid;
      gap:9px;
    }
    .cover-lines i{
      display:block;
      height:9px;
      border-radius:999px;
      background:rgba(255,255,255,.75);
    }
    .cover-lines i:nth-child(1){width:72%}
    .cover-lines i:nth-child(2){width:48%}
    .featured-body{
      padding:26px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .badge-row{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      margin-bottom:12px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:5px 10px;
      border-radius:var(--radius-pill);
      background:var(--primary-50);
      color:var(--primary-600);
      border:1px solid #bfdbfe;
      font-size:12px;
      font-weight:800;
      line-height:1;
    }
    .badge.cyan{background:#ecfeff;color:#0369a1;border-color:#bae6fd}
    .badge.amber{background:#fffbeb;color:#92400e;border-color:#fde68a}
    .featured-body h3,.content-card h3,.side-reco h3,.path-card h3{
      margin:0;
      font-size:20px;
      line-height:1.32;
    }
    .featured-body p,.content-card p,.side-reco p,.path-card p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:14px;
    }
    .card-link{
      margin-top:18px;
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary-600);
      font-weight:900;
      font-size:14px;
      border-radius:10px;
    }
    .card-link:hover{text-decoration:underline;text-underline-offset:4px}
    .side-reco{
      padding:22px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        linear-gradient(180deg,#fff,#f8fbff);
    }
    .reco-list{
      display:grid;
      gap:10px;
      margin-top:16px;
    }
    .reco-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--border);
      color:#334155;
      font-size:13px;
      font-weight:800;
    }
    .reco-row span:last-child{
      color:var(--primary-600);
      font-size:12px;
      flex:0 0 auto;
    }
    .cards-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .content-card{
      overflow:hidden;
    }
    .content-card.wide{
      grid-column:span 2;
      display:grid;
      grid-template-columns:.9fr 1.1fr;
    }
    .thumb{
      position:relative;
      aspect-ratio:16/9;
      background:
        linear-gradient(135deg,#eff6ff,#e0f2fe),
        radial-gradient(circle at 15% 20%,rgba(99,102,241,.16),transparent 34%);
      overflow:hidden;
    }
    .thumb.variant-2{background:linear-gradient(135deg,#eef2ff,#f0f9ff 55%,#fff)}
    .thumb.variant-3{background:linear-gradient(135deg,#e0f2fe,#f8fafc 58%,#dbeafe)}
    .thumb.variant-4{background:linear-gradient(135deg,#f8fafc,#dbeafe 52%,#ecfeff)}
    .card-body{padding:20px}
    .meta-line{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      color:var(--muted-2);
      font-size:12px;
      margin-top:16px;
      padding-top:14px;
      border-top:1px solid var(--border);
    }

    .guide-strip{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
    }
    .path-card{
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .path-card:before{
      content:attr(data-step);
      position:absolute;
      right:20px;
      top:18px;
      font-size:46px;
      line-height:1;
      font-weight:900;
      color:rgba(37,99,235,.08);
    }
    .path-icon{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--cyan));
      margin-bottom:16px;
      box-shadow:0 12px 24px rgba(37,99,235,.16);
    }
    .path-icon svg{width:23px;height:23px}
    .notice-card{
      padding:28px;
      display:grid;
      grid-template-columns:auto 1fr;
      gap:18px;
      background:
        linear-gradient(135deg,#fff,#f8fbff);
      box-shadow:var(--shadow-soft);
    }
    .notice-icon{
      width:52px;
      height:52px;
      border-radius:18px;
      background:#fffbeb;
      color:#b45309;
      border:1px solid #fde68a;
      display:grid;
      place-items:center;
    }
    .notice-icon svg{width:25px;height:25px}
    .notice-card h2{font-size:26px}
    .notice-card p{margin:8px 0 0;color:var(--muted)}
    .notice-list{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .notice-list li{
      padding:13px 14px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--border);
      color:#475569;
      font-size:14px;
    }
    .notice-list li strong{color:#0f172a}

    .data-band{
      display:grid;
      grid-template-columns:1fr 1.4fr;
      gap:22px;
      align-items:stretch;
    }
    .data-title{
      padding:30px;
      border-radius:28px;
      border:1px solid #bfdbfe;
      background:
        linear-gradient(135deg,var(--primary),#3b82f6);
      color:#fff;
      box-shadow:0 20px 40px rgba(37,99,235,.20);
    }
    .data-title h2{color:#fff}
    .data-title p{margin:14px 0 0;color:rgba(255,255,255,.84)}
    .data-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .data-card{
      padding:22px;
      border:1px solid var(--border);
      border-radius:24px;
      background:#fff;
      box-shadow:var(--shadow-soft);
    }
    .data-card strong{
      display:block;
      color:var(--primary-600);
      font-size:31px;
      line-height:1.1;
      letter-spacing:-.5px;
    }
    .data-card span{
      display:block;
      margin-top:8px;
      color:#334155;
      font-weight:800;
    }
    .data-card p{
      margin:6px 0 0;
      color:var(--muted);
      font-size:14px;
    }

    .faq-grid{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:24px;
      align-items:start;
    }
    .faq-intro{
      border-radius:28px;
      padding:28px;
      background:linear-gradient(180deg,#fff,#f8fbff);
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
    }
    .faq-intro p{margin:12px 0 0;color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-question{
      width:100%;
      min-height:62px;
      padding:0 20px;
      border:0;
      background:#fff;
      color:var(--text);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      font-weight:900;
      text-align:left;
    }
    .faq-question:hover{background:var(--primary-50)}
    .faq-question span:last-child{
      width:26px;
      height:26px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:var(--primary-50);
      color:var(--primary-600);
      flex:0 0 auto;
      transition:transform var(--ease);
    }
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{
      padding:0 20px 20px;
      color:var(--muted);
      font-size:14px;
      display:none;
    }
    .faq-item.open .faq-answer{display:block}
    .cta-panel{
      padding:32px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      background:
        radial-gradient(circle at 90% 15%,rgba(14,165,233,.14),transparent 18rem),
        linear-gradient(135deg,#fff,#eff6ff);
      border-color:#bfdbfe;
    }
    .cta-panel h2{font-size:30px}
    .cta-panel p{
      margin:10px 0 0;
      color:var(--muted);
      max-width:700px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      margin-top:20px;
      padding:64px 0 26px;
      background:#0f172a;
      color:#e2e8f0;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .75fr .75fr 1fr;
      gap:34px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:38px;height:38px;border-radius:14px}
    .footer-brand strong{font-size:18px;color:#fff}
    .footer-col p{
      margin:0;
      color:#94a3b8;
      font-size:14px;
      line-height:1.8;
    }
    .footer-col h3{
      margin:0 0 14px;
      color:#fff;
      font-size:15px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#cbd5e1;
      font-size:14px;
      transition:color var(--ease),transform var(--ease);
    }
    .footer-links a:hover{
      color:#93c5fd;
      transform:translateX(2px);
    }
    .copyright{
      margin-top:40px;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.22);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:#94a3b8;
      font-size:13px;
    }

    @media (max-width:1100px){
      .topbar{grid-template-columns:auto 1fr}
      .search{grid-column:1/-1;order:3}
      .header-actions{justify-content:flex-end}
      .hero-panel{grid-template-columns:1fr}
      .filter-board{grid-template-columns:1fr}
      .filter-aside{position:relative;top:auto}
      .filter-aside .filter-pills{flex-wrap:nowrap;overflow:auto;padding-bottom:3px;scrollbar-width:none}
      .filter-aside .filter-pills::-webkit-scrollbar{display:none}
      .top-entry{grid-template-columns:1fr}
      .cards-grid{grid-template-columns:repeat(2,1fr)}
      .data-band,.faq-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--container))}
      .topbar{display:flex;flex-wrap:wrap;gap:12px}
      .brand{flex:1 1 auto}
      .brand-title{font-size:16px}
      .header-actions{width:100%;display:grid;grid-template-columns:1fr 1fr}
      .header-actions .btn{width:100%;padding-inline:12px}
      .search{width:100%;order:2}
      .tabbar{min-height:50px;padding-inline:0}
      .category-hero{padding:24px 0 44px}
      .hero-panel{padding:22px;border-radius:26px}
      .hero-copy p{font-size:15px}
      .hero-quick{display:grid;grid-template-columns:1fr}
      .hero-meta{grid-template-columns:1fr}
      .mini-panel{grid-template-columns:1fr}
      .section{padding:56px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .featured-card,.content-card.wide{grid-template-columns:1fr;grid-column:auto}
      .cards-grid{grid-template-columns:1fr}
      .guide-strip{grid-template-columns:1fr}
      .notice-card{grid-template-columns:1fr;padding:22px}
      .notice-list{grid-template-columns:1fr}
      .data-grid{grid-template-columns:1fr}
      .cta-panel{grid-template-columns:1fr;padding:24px}
      .cta-actions{justify-content:stretch}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }
    @media (max-width:480px){
      .container{width:min(100% - 28px,var(--container))}
      .brand-sub{display:none}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .header-actions{grid-template-columns:1fr}
      .nav-tab{padding-inline:14px}
      .hero-panel{padding:18px;border-radius:22px}
      h1{font-size:31px}
      .tool-card,.filter-aside,.card-body,.featured-body{padding:18px}
      .meta-line{display:block}
      .meta-line span{display:block;margin-top:4px}
    }