/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-2:#3B82F6;
      --primary-dark:#1D4ED8;
      --soft:#EAF4FF;
      --soft-2:#F1F7FF;
      --accent:#F59E0B;
      --accent-2:#F97316;
      --ink:#0F172A;
      --text:#475569;
      --muted:#64748B;
      --line:#E2E8F0;
      --bg:#F8FAFC;
      --white:#FFFFFF;
      --shadow:0 10px 30px rgba(15,23,42,.06);
      --shadow-hover:0 18px 44px rgba(37,99,235,.12);
      --radius:22px;
      --radius-sm:14px;
      --container:1200px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(37,99,235,.10), transparent 30%),
        radial-gradient(circle at 88% 18%, rgba(14,165,233,.12), transparent 28%),
        linear-gradient(180deg,#fff 0%,#F8FAFC 44%,#fff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    ::selection{background:rgba(37,99,235,.18);color:var(--ink)}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .site-container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(226,232,240,.86);
    }
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand-logo{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      background:linear-gradient(135deg,var(--primary),#60A5FA);
      display:grid;place-items:center;
      box-shadow:0 12px 24px rgba(37,99,235,.22);
      flex:0 0 auto;
      position:relative;
      overflow:hidden;
    }
    .brand-mark:before{content:"";width:18px;height:18px;border-radius:6px;background:rgba(255,255,255,.92);clip-path:polygon(28% 18%,82% 50%,28% 82%)}
    .brand-mark:after{content:"";position:absolute;inset:auto -8px -10px auto;width:28px;height:28px;border-radius:999px;background:rgba(255,255,255,.18)}
    .brand-text{font-weight:800;color:var(--ink);letter-spacing:-.02em;white-space:nowrap;font-size:17px}
    .nav-menu{display:flex;align-items:center;gap:6px}
    .nav-link{
      min-height:42px;padding:9px 14px;border-radius:999px;
      color:#334155;font-weight:700;font-size:15px;
      transition:background .2s ease,color .2s ease,transform .2s ease;
      display:inline-flex;align-items:center;gap:6px;
    }
    .nav-link:hover,.nav-link:focus-visible{background:var(--soft);color:var(--primary);outline:none}
    .nav-link.active{background:#DBEAFE;color:var(--primary)}
    .nav-link:active{transform:translateY(1px)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mega-menu{position:relative}
    .mega-trigger{
      min-height:42px;border:1px solid var(--line);background:#fff;color:var(--ink);
      padding:9px 14px;border-radius:999px;font-weight:800;
      box-shadow:0 8px 20px rgba(15,23,42,.04);
      transition:all .2s ease;
    }
    .mega-trigger:hover,.mega-menu:focus-within .mega-trigger{border-color:#BFDBFE;color:var(--primary);box-shadow:0 12px 28px rgba(37,99,235,.10)}
    .mega-panel{
      position:absolute;right:0;top:calc(100% + 12px);
      width:360px;background:#fff;border:1px solid rgba(148,163,184,.24);
      border-radius:22px;box-shadow:0 24px 60px rgba(15,23,42,.14);
      padding:14px;opacity:0;visibility:hidden;transform:translateY(8px);
      transition:.2s ease;
    }
    .mega-menu:hover .mega-panel,.mega-menu:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
    .mega-card{display:flex;gap:12px;padding:12px;border-radius:16px;transition:.2s ease}
    .mega-card:hover{background:var(--soft-2)}
    .mega-ico{width:38px;height:38px;border-radius:13px;background:#EFF6FF;color:var(--primary);display:grid;place-items:center;font-weight:900;flex:0 0 auto}
    .mobile-toggle{display:none}
    .hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;align-items:center;justify-content:center;gap:4px;flex-direction:column}
    .hamburger span{width:18px;height:2px;background:var(--ink);border-radius:99px}
    .mobile-panel{display:none}
    .btn{
      min-height:46px;padding:12px 20px;border-radius:999px;font-weight:800;
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
      border:1px solid transparent;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;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);background:linear-gradient(135deg,var(--primary-dark),var(--primary))}
    .btn-secondary{background:#fff;color:var(--primary);border-color:#BFDBFE;box-shadow:0 10px 24px rgba(15,23,42,.05)}
    .btn-secondary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#93C5FD;background:#F8FBFF}
    .btn-orange{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 14px 30px rgba(245,158,11,.22)}
    .btn:focus-visible,.filter-pill:focus-visible,.footer-link:focus-visible{outline:3px solid rgba(37,99,235,.25);outline-offset:3px}
    .badge{display:inline-flex;align-items:center;gap:8px;border:1px solid #BFDBFE;background:rgba(234,244,255,.86);color:var(--primary);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:800}
    .age-badge{border-color:#FED7AA;background:#FFF7ED;color:#C2410C}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .section-title{color:var(--ink);font-weight:800;letter-spacing:-.03em;line-height:1.18}
    .section-lead{font-size:17px;color:var(--muted);max-width:760px}
    .hero{position:relative;overflow:hidden;padding:78px 0 56px}
    .hero:before{
      content:"";position:absolute;inset:0;
      background-image:linear-gradient(rgba(37,99,235,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.05) 1px,transparent 1px);
      background-size:36px 36px;mask-image:linear-gradient(180deg,#000 0%,transparent 80%);
      pointer-events:none;
    }
    .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.95fr);gap:48px;align-items:center}
    .hero h1{font-size:clamp(36px,5vw,62px);line-height:1.1;color:var(--ink);font-weight:900;letter-spacing:-.05em;margin:18px 0}
    .hero-sub{font-size:18px;color:#475569;max-width:680px}
    .trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
    .trust-item{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.78);font-size:14px;color:#475569;font-weight:700}
    .hero-panel{
      position:relative;border-radius:30px;padding:18px;
      background:linear-gradient(145deg,#fff,#EEF6FF);
      border:1px solid rgba(148,163,184,.24);
      box-shadow:0 30px 80px rgba(15,23,42,.12);
    }
    .phone-frame{background:#0F172A;border-radius:26px;padding:12px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
    .app-screen{min-height:520px;border-radius:20px;background:linear-gradient(180deg,#F8FBFF,#fff);padding:18px;position:relative;overflow:hidden}
    .screen-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
    .dot-row{display:flex;gap:6px}.dot-row span{width:8px;height:8px;border-radius:999px;background:#CBD5E1}.dot-row span:first-child{background:#60A5FA}
    .screen-card{border:1px solid rgba(148,163,184,.24);background:#fff;border-radius:18px;padding:14px;margin-bottom:12px;box-shadow:0 8px 22px rgba(15,23,42,.05)}
    .blur-cover{height:118px;border-radius:16px;background:linear-gradient(135deg,#DBEAFE,#F1F5F9 55%,#FED7AA);position:relative;overflow:hidden}
    .blur-cover:after{content:"";position:absolute;inset:0;backdrop-filter:blur(10px);background:rgba(255,255,255,.25)}
    .progress{height:9px;background:#E2E8F0;border-radius:99px;overflow:hidden}
    .progress span{display:block;height:100%;width:72%;background:linear-gradient(90deg,var(--primary),#38BDF8);border-radius:99px}
    .float-card{position:absolute;background:#fff;border:1px solid rgba(148,163,184,.24);border-radius:18px;padding:12px 14px;box-shadow:0 18px 42px rgba(15,23,42,.12);font-weight:800;color:var(--ink)}
    .float-one{left:-18px;bottom:86px}.float-two{right:-14px;top:84px}
    .feature-card,.category-card,.review-card,.faq-card,.require-card,.download-card{
      background:#fff;border:1px solid rgba(148,163,184,.22);border-radius:var(--radius);box-shadow:var(--shadow);
      transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease,background .2s ease;
    }
    .feature-card:hover,.category-card:hover,.review-card:hover,.faq-card:hover,.require-card:hover,.download-card:hover{
      transform:translateY(-3px);border-color:#BFDBFE;box-shadow:var(--shadow-hover);
    }
    .icon-box{width:48px;height:48px;border-radius:16px;background:#EFF6FF;color:var(--primary);display:grid;place-items:center;font-weight:900;font-size:20px}
    .tag{display:inline-flex;align-items:center;min-height:28px;border-radius:999px;background:#F1F5F9;color:#475569;padding:4px 10px;font-size:13px;font-weight:800}
    .tag.blue{background:#DBEAFE;color:#1D4ED8}.tag.orange{background:#FFF7ED;color:#C2410C}
    .screenshot-track{display:grid;grid-template-columns:.85fr 1.3fr .85fr;gap:20px;align-items:center}
    .shot{min-height:330px;border-radius:26px;border:1px solid rgba(148,163,184,.24);background:#fff;padding:18px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .shot.center{min-height:410px;background:linear-gradient(180deg,#fff,#EFF6FF)}
    .shot:before{content:"";position:absolute;inset:0 0 auto;height:8px;background:linear-gradient(90deg,var(--primary),#38BDF8)}
    .placeholder-lines{display:grid;gap:10px;margin-top:18px}
    .placeholder-lines span{height:12px;border-radius:99px;background:#E2E8F0}.placeholder-lines span:nth-child(2){width:76%}.placeholder-lines span:nth-child(3){width:58%}
    .require-table{overflow:hidden;border-radius:18px;border:1px solid var(--line)}
    .require-row{display:grid;grid-template-columns:150px 1fr;border-bottom:1px solid var(--line);background:#fff}
    .require-row:last-child{border-bottom:0}
    .require-row strong,.require-row span{padding:14px 16px}
    .require-row strong{background:#F8FAFC;color:var(--ink)}
    .review-grid{columns:3 260px;column-gap:18px}
    .review-card{break-inside:avoid;padding:20px;margin-bottom:18px}
    .faq-card{padding:20px}
    .faq-card h3{color:var(--ink);font-size:18px;font-weight:800;margin-bottom:8px}
    .cta-band{position:relative;overflow:hidden;border-radius:32px;background:linear-gradient(135deg,#EFF6FF,#FFFFFF 55%,#FFF7ED);border:1px solid rgba(148,163,184,.24);box-shadow:var(--shadow);padding:42px}
    .cta-band:after{content:"";position:absolute;right:-80px;top:-80px;width:220px;height:220px;border-radius:999px;background:rgba(37,99,235,.10)}
    .site-footer{background:#F1F5F9;border-top:1px solid var(--line);padding:48px 0 28px}
    .footer-link{display:inline-flex;color:#475569;font-weight:700;padding:6px 0;transition:.2s ease}
    .footer-link:hover{color:var(--primary);transform:translateX(2px)}
    .footer-note{border-top:1px solid #E2E8F0;margin-top:26px;padding-top:20px;color:#64748B;font-size:14px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
    @media (max-width:1024px){
      .hero-grid{grid-template-columns:1fr;gap:34px}
      .hero-panel{max-width:680px;margin-inline:auto}
      .nav-menu,.nav-actions{display:none}
      .hamburger{display:flex}
      .mobile-toggle:checked ~ .mobile-panel{display:block}
      .mobile-panel{position:absolute;left:20px;right:20px;top:86px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 60px rgba(15,23,42,.16);padding:12px}
      .mobile-panel a{display:flex;min-height:46px;align-items:center;padding:10px 14px;border-radius:14px;font-weight:800}
      .mobile-panel a:hover{background:var(--soft);color:var(--primary)}
      .screenshot-track{grid-template-columns:1fr}
      .shot,.shot.center{min-height:300px}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 32px,var(--container))}
      .section{padding:64px 0}.section-tight{padding:48px 0}
      .nav-wrap{height:70px}
      .brand-text{font-size:15px;max-width:230px;overflow:hidden;text-overflow:ellipsis}
      .hero{padding:52px 0 40px}
      .app-screen{min-height:420px}
      .float-card{display:none}
      .require-row{grid-template-columns:1fr}
      .require-row strong{border-bottom:1px solid var(--line)}
      .cta-band{padding:28px}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text{max-width:188px}
      .hero h1{font-size:34px}
      .hero-sub{font-size:16px}
      .btn{width:100%}
      .hero .btn-row,.cta-btns{width:100%;display:grid!important;grid-template-columns:1fr!important}
      .trust-row{display:grid;grid-template-columns:1fr}
      .app-screen{min-height:380px;padding:14px}
      .review-grid{columns:1}
    }

/* roulang page: category1 */
:root{
      --primary:#2563eb;
      --primary-2:#2f6fed;
      --primary-dark:#1d4ed8;
      --soft-blue:#eaf4ff;
      --soft-cyan:#f1f7ff;
      --accent:#f59e0b;
      --title:#0f172a;
      --text:#475569;
      --muted:#64748b;
      --line:#e2e8f0;
      --page:#f8fafc;
      --card:#ffffff;
      --radius:22px;
      --radius-sm:14px;
      --shadow:0 10px 30px rgba(15,23,42,.06);
      --shadow-hover:0 18px 44px rgba(37,99,235,.12);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(47,111,237,.14), transparent 32%),
        radial-gradient(circle at 92% 22%, rgba(14,165,233,.10), transparent 28%),
        linear-gradient(180deg,#ffffff 0%,#f8fbff 42%,#f8fafc 100%);
      line-height:1.75;
      min-height:100vh;
    }
    ::selection{background:rgba(37,99,235,.16);color:var(--title)}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .site-container{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:saturate(180%) blur(18px);
      border-bottom:1px solid rgba(226,232,240,.82);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand-logo{
      display:inline-flex;
      align-items:center;
      gap:11px;
      min-width:0;
      color:var(--title);
      font-weight:900;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      flex:0 0 auto;
      background:
        linear-gradient(135deg,#2563eb,#38bdf8);
      box-shadow:0 12px 24px rgba(37,99,235,.24);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      inset:10px 12px;
      border-radius:5px;
      background:rgba(255,255,255,.92);
      clip-path:polygon(0 0,100% 50%,0 100%);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      right:-10px;
      bottom:-10px;
      width:28px;
      height:28px;
      border-radius:999px;
      background:rgba(255,255,255,.22);
    }
    .brand-text{
      font-size:18px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:320px;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:14px;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:4px;
      padding:6px;
      border:1px solid rgba(226,232,240,.78);
      border-radius:999px;
      background:rgba(248,250,252,.82);
    }
    .nav-link{
      min-height:40px;
      display:inline-flex;
      align-items:center;
      padding:0 16px;
      border-radius:999px;
      color:#334155;
      font-size:15px;
      font-weight:800;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--primary);
      background:#eef6ff;
      outline:none;
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#3b82f6);
      box-shadow:0 10px 22px rgba(37,99,235,.18);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .mega{
      position:relative;
    }
    .mega-trigger{
      height:42px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      border:1px solid rgba(148,163,184,.28);
      border-radius:999px;
      background:#fff;
      padding:0 15px;
      color:#334155;
      font-weight:800;
      transition:.2s ease;
      cursor:pointer;
    }
    .mega-trigger:hover,
    .mega:focus-within .mega-trigger{
      color:var(--primary);
      border-color:rgba(37,99,235,.35);
      box-shadow:0 10px 24px rgba(15,23,42,.06);
    }
    .mega-panel{
      position:absolute;
      right:0;
      top:calc(100% + 12px);
      width:360px;
      background:#fff;
      border:1px solid rgba(226,232,240,.9);
      border-radius:22px;
      padding:14px;
      box-shadow:0 24px 70px rgba(15,23,42,.14);
      opacity:0;
      visibility:hidden;
      transform:translateY(8px);
      transition:.18s ease;
    }
    .mega:hover .mega-panel,
    .mega:focus-within .mega-panel{
      opacity:1;
      visibility:visible;
      transform:translateY(0);
    }
    .mega-card{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      padding:12px;
      border-radius:16px;
      transition:.2s ease;
    }
    .mega-card:hover{
      background:#f1f7ff;
      transform:translateX(2px);
    }
    .mega-icon{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:#eaf4ff;
      color:var(--primary);
      font-weight:900;
    }
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--title);
      align-items:center;
      justify-content:center;
    }
    .mobile-toggle span,
    .mobile-toggle span:before,
    .mobile-toggle span:after{
      content:"";
      display:block;
      width:20px;
      height:2px;
      border-radius:999px;
      background:#0f172a;
      position:relative;
    }
    .mobile-toggle span:before{position:absolute;top:-7px}
    .mobile-toggle span:after{position:absolute;top:7px}
    .btn{
      min-height:48px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:0 22px;
      font-weight:900;
      transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
      border:1px solid transparent;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible{
      outline:3px solid rgba(37,99,235,.25);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,#2563eb,#3b82f6);
      box-shadow:0 16px 30px rgba(37,99,235,.22);
    }
    .btn-primary:hover{box-shadow:0 18px 40px rgba(37,99,235,.30);background:linear-gradient(135deg,#1d4ed8,#2563eb)}
    .btn-ghost{
      color:var(--primary);
      background:#fff;
      border-color:rgba(37,99,235,.20);
      box-shadow:0 10px 24px rgba(15,23,42,.05);
    }
    .btn-ghost:hover{border-color:rgba(37,99,235,.38);background:#f7fbff}
    .btn-accent{
      color:#fff;
      background:linear-gradient(135deg,#f59e0b,#f97316);
      box-shadow:0 16px 30px rgba(245,158,11,.22);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:32px;
      padding:4px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:900;
      color:#1e40af;
      background:#eaf4ff;
      border:1px solid rgba(37,99,235,.14);
    }
    .badge-warning{
      color:#92400e;
      background:#fff7ed;
      border-color:rgba(245,158,11,.24);
    }
    .section{
      padding:76px 0;
    }
    .section-sm{
      padding:58px 0;
    }
    .section-title{
      color:var(--title);
      font-size:clamp(28px,4vw,42px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .section-lead{
      max-width:760px;
      margin-top:14px;
      color:#64748b;
      font-size:17px;
    }
    .hero{
      position:relative;
      overflow:hidden;
      padding:52px 0 66px;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:26px 20px auto auto;
      width:420px;
      height:420px;
      border-radius:999px;
      background:rgba(37,99,235,.09);
      filter:blur(20px);
      pointer-events:none;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:9px;
      color:#64748b;
      font-size:14px;
      font-weight:700;
      margin-bottom:18px;
    }
    .breadcrumb a:hover{color:var(--primary)}
    .hero-title{
      color:var(--title);
      font-size:clamp(36px,5.6vw,58px);
      line-height:1.1;
      font-weight:950;
      letter-spacing:-.045em;
      max-width:760px;
    }
    .hero-desc{
      margin-top:18px;
      max-width:720px;
      font-size:18px;
      color:#475569;
    }
    .trust-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .trust-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.78);
      border:1px solid rgba(226,232,240,.82);
      color:#475569;
      font-size:14px;
      font-weight:800;
    }
    .status-panel{
      border:1px solid rgba(226,232,240,.86);
      background:rgba(255,255,255,.82);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:18px;
      position:relative;
      overflow:hidden;
    }
    .status-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(37,99,235,.08) 1px,transparent 1px),
        linear-gradient(0deg,rgba(37,99,235,.06) 1px,transparent 1px);
      background-size:32px 32px;
      opacity:.28;
      pointer-events:none;
    }
    .device-frame{
      position:relative;
      border-radius:24px;
      background:#0f172a;
      padding:14px;
      box-shadow:0 24px 60px rgba(15,23,42,.18);
    }
    .screen{
      border-radius:18px;
      background:linear-gradient(180deg,#f8fbff,#ffffff);
      padding:18px;
      min-height:420px;
      position:relative;
      overflow:hidden;
    }
    .screen-bar{
      height:10px;
      width:86px;
      border-radius:999px;
      background:#dbeafe;
      margin:0 auto 18px;
    }
    .screen-card{
      border:1px solid rgba(226,232,240,.9);
      border-radius:18px;
      background:#fff;
      padding:14px;
      box-shadow:0 10px 24px rgba(15,23,42,.05);
    }
    .progress{
      height:9px;
      border-radius:999px;
      background:#e2e8f0;
      overflow:hidden;
    }
    .progress span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,#2563eb,#38bdf8);
    }
    .floating-note{
      position:absolute;
      right:22px;
      bottom:24px;
      background:#fff;
      border:1px solid rgba(226,232,240,.9);
      border-radius:18px;
      padding:12px 14px;
      box-shadow:0 16px 36px rgba(15,23,42,.10);
      color:#334155;
      font-weight:900;
    }
    .card{
      border:1px solid rgba(226,232,240,.86);
      background:#fff;
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(37,99,235,.22);
    }
    .download-card{
      padding:22px;
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .download-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      margin-bottom:18px;
    }
    .icon-box{
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:var(--primary);
      font-weight:950;
      background:#eaf4ff;
      transition:.2s ease;
    }
    .card:hover .icon-box{background:#dbeafe;transform:scale(1.04)}
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:3px 10px;
      border-radius:999px;
      background:#f1f5f9;
      color:#64748b;
      font-size:13px;
      font-weight:800;
    }
    .tag.active{
      color:#fff;
      background:var(--primary);
    }
    .filter-bar{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:12px;
      border:1px solid rgba(226,232,240,.86);
      border-radius:22px;
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow);
    }
    .version-list{
      display:grid;
      gap:14px;
    }
    .version-item{
      display:grid;
      grid-template-columns:64px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:22px;
      border:1px solid rgba(226,232,240,.88);
      background:#fff;
      box-shadow:0 8px 24px rgba(15,23,42,.04);
      transition:.2s ease;
    }
    .version-item:hover{
      border-color:rgba(37,99,235,.24);
      box-shadow:var(--shadow-hover);
      transform:translateY(-2px);
    }
    .thumb{
      height:64px;
      border-radius:18px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.18),rgba(56,189,248,.16)),
        repeating-linear-gradient(135deg,rgba(255,255,255,.45) 0 8px,transparent 8px 16px);
      border:1px solid rgba(37,99,235,.10);
    }
    .check-list{
      display:grid;
      gap:12px;
    }
    .check-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:#f8fbff;
      border:1px solid rgba(226,232,240,.78);
    }
    .check-dot{
      width:22px;
      height:22px;
      margin-top:3px;
      border-radius:999px;
      background:#dcfce7;
      color:#15803d;
      display:grid;
      place-items:center;
      font-size:13px;
      font-weight:950;
      flex:0 0 auto;
    }
    .notice-band{
      border-radius:30px;
      background:linear-gradient(135deg,#eff6ff,#ffffff 52%,#fff7ed);
      border:1px solid rgba(226,232,240,.88);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .faq-card{
      padding:20px;
      border:1px solid rgba(226,232,240,.86);
      border-radius:22px;
      background:#fff;
      box-shadow:0 10px 24px rgba(15,23,42,.04);
      transition:.2s ease;
    }
    .faq-card:hover{
      border-color:rgba(37,99,235,.24);
      box-shadow:var(--shadow-hover);
      transform:translateY(-2px);
    }
    .faq-card h3{
      color:#0f172a;
      font-weight:900;
      font-size:18px;
      margin-bottom:8px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      padding:42px;
      background:
        radial-gradient(circle at 78% 22%,rgba(245,158,11,.18),transparent 32%),
        linear-gradient(135deg,#0f172a,#1e3a8a);
      color:#fff;
      box-shadow:0 28px 70px rgba(15,23,42,.22);
    }
    .cta-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px),
        linear-gradient(0deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:34px 34px;
      opacity:.35;
    }
    .cta-panel > *{position:relative}
    .site-footer{
      background:#fff;
      border-top:1px solid rgba(226,232,240,.88);
      padding:54px 0 28px;
      margin-top:36px;
    }
    .footer-link{
      color:#64748b;
      font-weight:750;
      padding:6px 0;
      transition:.18s ease;
    }
    .footer-link:hover{
      color:var(--primary);
      transform:translateX(2px);
    }
    .footer-note{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(226,232,240,.86);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:#64748b;
      font-size:14px;
    }
    @media (max-width:1024px){
      .brand-text{max-width:260px}
      .header-actions .mega{display:none}
      .hero{padding-top:42px}
      .screen{min-height:360px}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 32px,var(--container))}
      .header-inner{min-height:68px}
      .mobile-toggle{display:inline-flex}
      .nav-wrap{
        position:absolute;
        left:16px;
        right:16px;
        top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border:1px solid rgba(226,232,240,.9);
        border-radius:22px;
        background:#fff;
        box-shadow:0 24px 70px rgba(15,23,42,.15);
      }
      .nav-wrap.open{display:flex}
      .nav-menu{
        width:100%;
        flex-direction:column;
        border-radius:18px;
        align-items:stretch;
      }
      .nav-link{
        justify-content:center;
        border-radius:14px;
      }
      .brand-text{font-size:16px;max-width:220px}
      .section{padding:56px 0}
      .section-sm{padding:44px 0}
      .version-item{
        grid-template-columns:54px 1fr;
      }
      .version-item .btn{grid-column:1 / -1;width:100%}
      .cta-panel{padding:30px 22px;border-radius:26px}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 24px,var(--container))}
      .brand-text{max-width:176px}
      .hero-title{font-size:34px}
      .hero-desc{font-size:16px}
      .btn{width:100%;padding:0 18px}
      .trust-row{gap:8px}
      .trust-item{width:100%;justify-content:center}
      .filter-bar{border-radius:18px}
      .tag{flex:1;justify-content:center}
      .floating-note{position:static;margin-top:14px}
      .footer-note{display:grid;gap:8px}
    }

/* roulang page: category2 */
:root {
      --color-primary: #2563EB;
      --color-primary-2: #2F6FED;
      --color-primary-soft: #EAF4FF;
      --color-accent: #F59E0B;
      --color-text: #0F172A;
      --color-muted: #64748B;
      --color-body: #475569;
      --color-border: rgba(148, 163, 184, .24);
      --color-bg: #F8FAFC;
      --color-panel: #FFFFFF;
      --shadow-card: 0 10px 30px rgba(15,23,42,.06);
      --shadow-hover: 0 18px 44px rgba(37,99,235,.12);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 14px;
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--color-body);
      background:
        radial-gradient(circle at top left, rgba(47,111,237,.12), transparent 32rem),
        linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 48%, #FFFFFF 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    ::selection {
      background: rgba(37,99,235,.18);
      color: var(--color-text);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    .site-container {
      width: min(var(--container), calc(100% - 40px));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255,255,255,.92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(226,232,240,.92);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      color: var(--color-text);
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background:
        linear-gradient(135deg, #2563EB 0%, #38BDF8 58%, #F59E0B 100%);
      box-shadow: 0 12px 28px rgba(37,99,235,.22);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::before {
      content: "";
      position: absolute;
      inset: 11px 12px;
      border-radius: 6px;
      background: rgba(255,255,255,.92);
      clip-path: polygon(0 0, 100% 50%, 0 100%);
    }

    .brand-text {
      font-size: 18px;
      line-height: 1.2;
      white-space: nowrap;
    }

    .nav-shell {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px;
      border: 1px solid rgba(226,232,240,.78);
      border-radius: 999px;
      background: rgba(248,250,252,.86);
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: #334155;
      font-size: 15px;
      font-weight: 800;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--color-primary);
      background: #EFF6FF;
      outline: none;
    }

    .nav-link.active {
      color: #FFFFFF;
      background: linear-gradient(135deg, var(--color-primary), #3B82F6);
      box-shadow: 0 10px 22px rgba(37,99,235,.18);
    }

    .mega-wrap {
      position: relative;
    }

    .mega-button {
      min-height: 42px;
      padding: 0 15px;
      border-radius: 999px;
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.9);
      color: #334155;
      font-size: 15px;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .mega-button:hover,
    .mega-wrap:focus-within .mega-button {
      color: var(--color-primary);
      border-color: rgba(37,99,235,.22);
      background: #F8FBFF;
    }

    .mega-panel {
      position: absolute;
      right: 0;
      top: calc(100% + 14px);
      width: 360px;
      padding: 14px;
      border-radius: 22px;
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.92);
      box-shadow: 0 24px 60px rgba(15,23,42,.12);
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: .22s ease;
    }

    .mega-wrap:hover .mega-panel,
    .mega-wrap:focus-within .mega-panel {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .mega-card {
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 12px;
      padding: 12px;
      border-radius: 16px;
    }

    .mega-card:hover {
      background: #F1F7FF;
    }

    .mega-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
      display: grid;
      place-items: center;
      color: var(--color-primary);
      font-weight: 900;
    }

    .mobile-toggle {
      display: none;
    }

    .hamburger {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 16px;
      border: 1px solid rgba(226,232,240,.9);
      background: #FFFFFF;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
    }

    .hamburger span {
      width: 20px;
      height: 2px;
      border-radius: 999px;
      background: #0F172A;
      transition: .2s ease;
    }

    .hero-section {
      position: relative;
      padding: 72px 0 42px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.06fr) minmax(360px, .94fr);
      gap: 42px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(234,244,255,.9);
      border: 1px solid rgba(37,99,235,.14);
      color: #1D4ED8;
      font-size: 14px;
      font-weight: 900;
    }

    .page-title {
      margin: 18px 0 18px;
      color: var(--color-text);
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.1;
      letter-spacing: -.04em;
      font-weight: 900;
    }

    .lead {
      max-width: 760px;
      font-size: 18px;
      color: #475569;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
      color: #64748B;
      font-size: 14px;
    }

    .breadcrumb a:hover {
      color: var(--color-primary);
    }

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .btn {
      min-height: 50px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 900;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    }

    .btn-primary {
      color: #FFFFFF;
      background: linear-gradient(135deg, var(--color-primary), #3B82F6);
      box-shadow: 0 14px 30px rgba(37,99,235,.22);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(37,99,235,.3);
    }

    .btn-secondary {
      color: #1D4ED8;
      background: #FFFFFF;
      border: 1px solid rgba(37,99,235,.18);
      box-shadow: 0 10px 24px rgba(15,23,42,.04);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      border-color: rgba(37,99,235,.36);
      background: #F8FBFF;
    }

    .btn:focus-visible,
    .tag:focus-visible,
    .filter-pill:focus-visible,
    .footer-link:focus-visible,
    .brand-logo:focus-visible {
      outline: 3px solid rgba(37,99,235,.22);
      outline-offset: 3px;
    }

    .status-panel {
      position: relative;
      border-radius: 30px;
      padding: 22px;
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.92);
      box-shadow: 0 22px 60px rgba(15,23,42,.1);
      overflow: hidden;
    }

    .status-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 78% 16%, rgba(37,99,235,.16), transparent 16rem),
        linear-gradient(180deg, rgba(234,244,255,.8), transparent 42%);
      pointer-events: none;
    }

    .status-inner {
      position: relative;
      z-index: 1;
    }

    .device-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(226,232,240,.86);
    }

    .dot-row {
      display: flex;
      gap: 7px;
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #CBD5E1;
    }

    .dot:nth-child(1) { background: #F97316; }
    .dot:nth-child(2) { background: #F59E0B; }
    .dot:nth-child(3) { background: #22C55E; }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 6px 10px;
      background: rgba(34,197,94,.1);
      color: #15803D;
      font-size: 13px;
      font-weight: 900;
    }

    .status-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      margin-top: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(226,232,240,.86);
    }

    .progress-line {
      height: 8px;
      border-radius: 999px;
      background: #E2E8F0;
      overflow: hidden;
      margin-top: 10px;
    }

    .progress-line span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, #2563EB, #38BDF8);
    }

    .section {
      padding: 70px 0;
    }

    .section-soft {
      background: linear-gradient(180deg, rgba(241,247,255,.72), rgba(255,255,255,.78));
      border-block: 1px solid rgba(226,232,240,.72);
    }

    .section-title {
      color: var(--color-text);
      font-size: clamp(28px, 3.2vw, 40px);
      line-height: 1.18;
      font-weight: 900;
      letter-spacing: -.03em;
    }

    .section-desc {
      margin-top: 12px;
      color: #64748B;
      font-size: 17px;
      max-width: 760px;
    }

    .filter-panel {
      margin-top: 28px;
      padding: 18px;
      border-radius: 24px;
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.9);
      box-shadow: var(--shadow-card);
    }

    .filter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(148,163,184,.34);
    }

    .filter-row:last-child {
      border-bottom: 0;
    }

    .filter-label {
      width: 88px;
      color: #0F172A;
      font-weight: 900;
      padding-top: 7px;
    }

    .filter-options {
      flex: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .filter-pill,
    .tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 36px;
      padding: 0 13px;
      border-radius: 999px;
      background: #F8FAFC;
      border: 1px solid rgba(226,232,240,.9);
      color: #475569;
      font-size: 14px;
      font-weight: 800;
    }

    .filter-pill.active {
      color: #FFFFFF;
      border-color: transparent;
      background: linear-gradient(135deg, var(--color-primary), #3B82F6);
      box-shadow: 0 10px 24px rgba(37,99,235,.18);
    }

    .filter-pill:hover,
    .tag:hover {
      color: var(--color-primary);
      border-color: rgba(37,99,235,.24);
      background: #EFF6FF;
    }

    .card {
      border-radius: var(--radius-lg);
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.9);
      box-shadow: var(--shadow-card);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(37,99,235,.22);
    }

    .card-title {
      color: var(--color-text);
      font-weight: 900;
      line-height: 1.3;
    }

    .icon-box {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
      color: var(--color-primary);
      font-weight: 900;
    }

    .method-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
      margin-top: 30px;
      align-items: stretch;
    }

    .method-large {
      padding: 28px;
      min-height: 280px;
      background:
        linear-gradient(135deg, #FFFFFF 0%, #F8FBFF 58%, #EAF4FF 100%);
    }

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

    .mini-card {
      padding: 22px;
      display: grid;
      grid-template-columns: 48px 1fr;
      gap: 15px;
      align-items: start;
    }

    .step-wrap {
      margin-top: 34px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
      position: relative;
    }

    .step-card {
      padding: 24px;
      position: relative;
      overflow: hidden;
    }

    .step-no {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #FFFFFF;
      background: linear-gradient(135deg, #2563EB, #38BDF8);
      font-weight: 900;
      box-shadow: 0 12px 26px rgba(37,99,235,.22);
      margin-bottom: 18px;
    }

    .use-grid {
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .use-card {
      padding: 24px;
    }

    .require-grid {
      margin-top: 30px;
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 24px;
    }

    .param-card {
      padding: 24px;
    }

    .param-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .param-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 13px 0;
      border-bottom: 1px solid rgba(226,232,240,.86);
    }

    .param-item:last-child {
      border-bottom: 0;
    }

    .param-item strong {
      color: #0F172A;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    .faq-card {
      padding: 20px;
      border-radius: 20px;
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.9);
      box-shadow: 0 8px 24px rgba(15,23,42,.04);
    }

    .faq-card h3 {
      color: #0F172A;
      font-size: 17px;
      line-height: 1.35;
      font-weight: 900;
      margin: 0 0 8px;
    }

    .faq-card p {
      margin: 0;
      color: #64748B;
    }

    .update-timeline {
      margin-top: 30px;
      display: grid;
      gap: 14px;
    }

    .update-item {
      display: grid;
      grid-template-columns: 150px 1fr;
      gap: 18px;
      padding: 20px;
      border-radius: 22px;
      background: #FFFFFF;
      border: 1px solid rgba(226,232,240,.9);
      box-shadow: 0 8px 24px rgba(15,23,42,.04);
    }

    .update-date {
      color: #1D4ED8;
      font-weight: 900;
    }

    .cta-band {
      padding: 42px;
      border-radius: 30px;
      background:
        radial-gradient(circle at 12% 12%, rgba(245,158,11,.18), transparent 18rem),
        linear-gradient(135deg, #0F172A 0%, #1E3A8A 64%, #2563EB 100%);
      color: #FFFFFF;
      overflow: hidden;
      position: relative;
    }

    .cta-band::after {
      content: "";
      position: absolute;
      right: -60px;
      bottom: -80px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      border: 38px solid rgba(255,255,255,.08);
    }

    .cta-band p {
      color: rgba(255,255,255,.78);
    }

    .site-footer {
      padding: 54px 0 28px;
      background: #F8FAFC;
      border-top: 1px solid rgba(226,232,240,.96);
    }

    .footer-link {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      color: #64748B;
      font-weight: 700;
    }

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

    .footer-note {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(226,232,240,.96);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      color: #94A3B8;
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .header-inner {
        min-height: 70px;
      }

      .brand-text {
        max-width: 290px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .hero-grid,
      .method-grid,
      .require-grid {
        grid-template-columns: 1fr;
      }

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

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

      .mega-wrap {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .site-container {
        width: min(100% - 32px, var(--container));
      }

      .hamburger {
        display: inline-flex;
      }

      .nav-shell {
        position: absolute;
        left: 16px;
        right: 16px;
        top: calc(100% + 10px);
        display: none;
        padding: 12px;
        border-radius: 22px;
        background: #FFFFFF;
        border: 1px solid rgba(226,232,240,.95);
        box-shadow: 0 18px 44px rgba(15,23,42,.12);
      }

      .mobile-toggle:checked ~ .nav-shell {
        display: block;
      }

      .mobile-toggle:checked + .hamburger span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
      }

      .mobile-toggle:checked + .hamburger span:nth-child(2) {
        opacity: 0;
      }

      .mobile-toggle:checked + .hamburger span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
      }

      .nav-menu {
        width: 100%;
        display: grid;
        gap: 8px;
        border-radius: 18px;
        background: #F8FAFC;
      }

      .nav-link {
        width: 100%;
        justify-content: center;
      }

      .hero-section {
        padding: 52px 0 28px;
      }

      .status-panel {
        border-radius: 24px;
        padding: 16px;
      }

      .section {
        padding: 54px 0;
      }

      .filter-row {
        display: block;
      }

      .filter-label {
        width: auto;
        margin-bottom: 8px;
      }

      .step-wrap,
      .use-grid {
        grid-template-columns: 1fr;
      }

      .update-item {
        grid-template-columns: 1fr;
      }

      .cta-band {
        padding: 28px;
        border-radius: 24px;
      }

      .footer-note {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 14px;
      }

      .brand-text {
        font-size: 15px;
        max-width: 218px;
      }

      .btn-row {
        display: grid;
      }

      .btn {
        width: 100%;
      }

      .mini-card {
        grid-template-columns: 1fr;
      }

      .status-row {
        grid-template-columns: 1fr;
      }
    }