/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --primary-soft:#EAF2FF;
      --primary-pale:#F4F8FF;
      --sky:#D8E7FF;
      --text:#1F2937;
      --muted:#64748B;
      --weak:#94A3B8;
      --border:#E2E8F0;
      --bg:#F8FAFC;
      --card:#FFFFFF;
      --success:#16A34A;
      --warning:#F59E0B;
      --error:#DC2626;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 12px 30px rgba(15,23,42,.06);
      --shadow-lg:0 18px 42px rgba(37,99,235,.12);
      --container:1160px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:linear-gradient(180deg,#F6F9FE 0%,#FFFFFF 46%,#F8FAFC 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
    .skip-link:focus{left:20px;top:20px;width:auto;height:auto;background:#fff;border:1px solid var(--primary);border-radius:10px;padding:10px 14px;z-index:1000}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.94);
      border-bottom:1px solid rgba(226,232,240,.86);
      box-shadow:0 8px 24px rgba(15,23,42,.035);
    }
    .nav-wrap{
      height:62px;
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
      font-weight:800;
      letter-spacing:-.02em;
      color:#0F172A;
      white-space:nowrap;
    }
    .brand-mark{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#60A5FA);
      box-shadow:0 10px 22px rgba(37,99,235,.22);
      font-size:16px;
      flex:0 0 auto;
    }
    .brand-text{font-size:16px;overflow:hidden;text-overflow:ellipsis}
    .main-nav{
      display:flex;
      align-items:center;
      gap:6px;
      justify-content:flex-start;
    }
    .main-nav a{
      padding:8px 13px;
      border-radius:999px;
      color:#475569;
      font-size:14px;
      font-weight:650;
      transition:background .22s ease,color .22s ease,transform .22s ease;
    }
    .main-nav a:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}
    .main-nav a.active{background:var(--primary);color:#fff}
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      justify-content:flex-end;
    }
    .search{
      display:flex;
      align-items:center;
      gap:8px;
      height:38px;
      min-width:210px;
      border:1px solid var(--border);
      border-radius:999px;
      background:#F8FAFC;
      color:var(--muted);
      padding:0 12px;
      transition:border .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
    .search input{border:0;outline:0;background:transparent;width:100%;font-size:13px;color:var(--text)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:42px;
      padding:10px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:750;
      font-size:14px;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      white-space:nowrap;
    }
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px rgba(37,99,235,.18)}
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 16px 30px rgba(37,99,235,.24)}
    .btn-secondary{background:#fff;color:var(--primary);border-color:#BBD2FF}
    .btn-secondary:hover{background:#EFF6FF;transform:translateY(-1px)}
    .btn-text{color:var(--primary);font-weight:800;padding:0;min-height:auto}
    .btn-text:hover{color:var(--primary-dark);transform:translateX(2px)}
    .menu-btn{
      display:none;
      width:42px;height:42px;border:1px solid var(--border);
      border-radius:12px;background:#fff;color:var(--text);
      align-items:center;justify-content:center;
    }
    .mobile-panel{
      display:none;
      border-top:1px solid var(--border);
      padding:12px 0 16px;
      background:#fff;
    }
    .mobile-panel a{
      display:flex;
      min-height:46px;
      align-items:center;
      border-radius:12px;
      padding:10px 14px;
      color:#475569;
      font-weight:700;
    }
    .mobile-panel a.active,.mobile-panel a:hover{background:var(--primary-soft);color:var(--primary)}
    .section{padding:78px 0}
    .section-tight{padding:56px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:6px 12px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      margin-bottom:12px;
    }
    .section-title{
      margin:0;
      font-size:32px;
      line-height:1.24;
      letter-spacing:-.03em;
      font-weight:850;
      color:#0F172A;
    }
    .section-desc{
      margin:10px 0 0;
      max-width:760px;
      color:var(--muted);
      font-size:16px;
    }
    .hero{
      padding:42px 0 72px;
      overflow:hidden;
    }
    .hero-band{
      position:relative;
      border:1px solid #DCE8FF;
      border-radius:28px;
      background:
        radial-gradient(circle at 86% 20%,rgba(96,165,250,.22),transparent 30%),
        linear-gradient(135deg,#FFFFFF 0%,#F4F8FF 56%,#EAF2FF 100%);
      box-shadow:var(--shadow-lg);
      padding:34px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      padding:10px 0;
    }
    .hero h1{
      margin:0;
      max-width:760px;
      font-size:44px;
      line-height:1.16;
      letter-spacing:-.045em;
      font-weight:900;
      color:#0B1220;
    }
    .hero-intro{
      margin:18px 0 0;
      max-width:720px;
      color:#475569;
      font-size:17px;
      line-height:1.85;
    }
    .hero-cta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:26px;
      max-width:720px;
    }
    .point{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(226,232,240,.92);
      border-radius:16px;
      padding:13px 14px;
      min-height:76px;
    }
    .point strong{display:block;color:#0F172A;font-size:18px;line-height:1.2}
    .point span{display:block;margin-top:4px;color:var(--muted);font-size:13px;line-height:1.45}
    .demo-panel{
      background:#fff;
      border:1px solid #D8E7FF;
      border-radius:24px;
      padding:18px;
      box-shadow:var(--shadow);
      align-self:stretch;
    }
    .demo-top{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      border-bottom:1px solid var(--border);
      padding-bottom:14px;margin-bottom:16px;
    }
    .demo-top b{font-size:16px;color:#0F172A}
    .status-pill{
      display:inline-flex;align-items:center;gap:6px;
      padding:5px 10px;border-radius:999px;
      background:#ECFDF5;color:#15803D;font-size:12px;font-weight:800;
    }
    .dot{width:7px;height:7px;border-radius:50%;background:currentColor}
    .entry-matrix{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .entry-card{
      border:1px solid var(--border);
      background:#FBFDFF;
      border-radius:16px;
      padding:14px;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .entry-card:hover{transform:translateY(-2px);border-color:#BBD2FF;box-shadow:0 12px 22px rgba(15,23,42,.06)}
    .entry-icon{
      width:34px;height:34px;border-radius:12px;
      background:var(--primary-soft);
      color:var(--primary);
      display:grid;place-items:center;
      margin-bottom:8px;
      font-weight:900;
    }
    .entry-card h3{margin:0;font-size:15px;font-weight:850;color:#0F172A}
    .entry-card p{margin:5px 0 0;font-size:13px;line-height:1.55;color:var(--muted)}
    .rule-note{
      margin-top:14px;
      padding:14px;
      border-radius:16px;
      background:linear-gradient(180deg,#F8FBFF,#FFFFFF);
      border:1px dashed #BBD2FF;
      color:#475569;
      font-size:13px;
    }
    .rule-note strong{color:#0F172A}
    .highlight-strip{
      margin-top:18px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:16px;
      align-items:center;
      background:#0F172A;
      color:#E2E8F0;
      border-radius:20px;
      padding:16px 18px;
    }
    .highlight-strip span{font-size:14px;color:#CBD5E1}
    .highlight-strip b{color:#fff}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .card{
      background:var(--card);
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:22px;
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .card:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(15,23,42,.09);border-color:#C7D9FF}
    .card h3{margin:0;color:#0F172A;font-size:20px;line-height:1.35;font-weight:850}
    .card p{margin:10px 0 0;color:var(--muted);font-size:15px;line-height:1.75}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      padding:5px 10px;
      font-size:12px;
      font-weight:850;
    }
    .commission-layout{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:22px;
      align-items:stretch;
    }
    .feature-large{
      padding:28px;
      background:linear-gradient(135deg,#FFFFFF,#F4F8FF);
      min-height:100%;
    }
    .feature-large .icon{
      width:48px;height:48px;border-radius:16px;
      background:var(--primary);
      color:#fff;
      display:grid;place-items:center;
      font-size:22px;
      margin-bottom:16px;
      box-shadow:0 14px 26px rgba(37,99,235,.2);
    }
    .mini-list{display:grid;gap:12px}
    .mini-item{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:12px;
      padding:16px;
      border:1px solid var(--border);
      border-radius:16px;
      background:#fff;
      box-shadow:0 10px 22px rgba(15,23,42,.04);
    }
    .mini-index{
      width:30px;height:30px;border-radius:10px;
      display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-weight:900;
    }
    .mini-item b{display:block;color:#0F172A;line-height:1.35}
    .mini-item span{display:block;margin-top:4px;color:var(--muted);font-size:14px;line-height:1.55}
    .materials{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
    }
    .catalog-card{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:188px;
      position:relative;
      overflow:hidden;
    }
    .catalog-card:before{
      content:"";
      position:absolute;right:-30px;top:-30px;
      width:120px;height:120px;border-radius:50%;
      background:rgba(37,99,235,.08);
    }
    .catalog-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
    .quote-card{
      background:#0F172A;
      color:#E2E8F0;
      border-color:#1E293B;
      min-height:100%;
    }
    .quote-card h3{color:#fff}
    .quote-card p{color:#CBD5E1}
    .quote-mark{font-size:34px;line-height:1;color:#93C5FD;margin-bottom:10px}
    .timeline{
      position:relative;
      display:grid;
      gap:14px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:20px;top:12px;bottom:12px;
      width:2px;background:#D8E7FF;
    }
    .step{
      position:relative;
      display:grid;
      grid-template-columns:42px 1fr;
      gap:16px;
    }
    .step-node{
      position:relative;
      z-index:1;
      width:42px;height:42px;border-radius:50%;
      background:#fff;border:2px solid #BBD2FF;color:var(--primary);
      display:grid;place-items:center;font-weight:900;
      box-shadow:0 8px 18px rgba(37,99,235,.1);
    }
    .step-body{
      background:#fff;
      border:1px solid var(--border);
      border-left:4px solid #93C5FD;
      border-radius:16px;
      padding:18px 20px;
      box-shadow:var(--shadow);
    }
    .step-label{font-size:12px;color:var(--primary);font-weight:850;margin-bottom:4px}
    .step-body h3{margin:0;font-size:19px;font-weight:850;color:#0F172A}
    .step-body p{margin:8px 0 0;color:var(--muted);font-size:15px}
    .benefit-mosaic{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .benefit-card:nth-child(2){margin-top:28px}
    .benefit-card:nth-child(3){margin-top:-28px}
    .icon-soft{
      width:46px;height:46px;border-radius:16px;
      background:var(--primary-soft);
      color:var(--primary);
      display:grid;place-items:center;
      font-size:22px;
      margin-bottom:14px;
      transition:background .22s ease,color .22s ease;
    }
    .benefit-card:hover .icon-soft{background:var(--primary);color:#fff}
    .plan-wrap{
      display:grid;
      grid-template-columns:.86fr 1.08fr .86fr;
      align-items:center;
      gap:18px;
    }
    .plan{
      position:relative;
      overflow:hidden;
      padding:0;
    }
    .plan-band{
      background:var(--primary-soft);
      color:var(--primary);
      padding:11px 20px;
      font-size:13px;
      font-weight:900;
    }
    .plan-main{padding:22px}
    .plan h3{font-size:21px}
    .plan .fit{color:var(--muted);font-size:14px;margin-top:8px}
    .plan ul{list-style:none;padding:0;margin:18px 0;display:grid;gap:10px}
    .plan li{display:flex;gap:9px;color:#475569;font-size:14px;line-height:1.55}
    .plan li:before{content:"✓";color:var(--success);font-weight:900}
    .plan .limit{border-top:1px solid var(--border);padding-top:13px;color:#64748B;font-size:13px}
    .plan.featured{border-color:#93C5FD;box-shadow:0 22px 48px rgba(37,99,235,.15);transform:scale(1.035)}
    .plan.featured .plan-band{background:var(--primary);color:#fff}
    .news-layout{
      display:grid;
      grid-template-columns:1fr 330px;
      gap:22px;
    }
    .news-list{display:grid;gap:12px}
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      background:#fff;
      border:1px solid var(--border);
      border-radius:16px;
      padding:16px;
      box-shadow:0 10px 22px rgba(15,23,42,.04);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .news-item:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,23,42,.08);border-color:#BBD2FF}
    .news-color{
      width:10px;height:50px;border-radius:999px;background:linear-gradient(180deg,var(--primary),#93C5FD);
    }
    .news-item h3{margin:0;font-size:17px;font-weight:850;color:#0F172A;line-height:1.4}
    .news-item:hover h3{color:var(--primary)}
    .news-item p{margin:5px 0 0;color:var(--muted);font-size:14px;line-height:1.55}
    .news-arrow{color:var(--primary);font-weight:900}
    .rank-card ol{padding:0;margin:0;list-style:none;display:grid;gap:12px}
    .rank-card li{
      display:grid;
      grid-template-columns:28px 1fr auto;
      align-items:center;
      gap:10px;
      padding-bottom:12px;
      border-bottom:1px solid var(--border);
    }
    .rank-card li:last-child{border-bottom:0;padding-bottom:0}
    .rank-no{width:28px;height:28px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-weight:900;font-size:13px}
    .rank-name{font-weight:800;color:#0F172A;font-size:14px}
    .rank-trend{font-size:12px;color:var(--muted)}
    .join{
      background:linear-gradient(135deg,#EAF2FF,#F8FBFF);
      border-top:1px solid #DCE8FF;
      border-bottom:1px solid #DCE8FF;
    }
    .join-grid{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      align-items:start;
    }
    .tip-card{
      background:#fff;
      border:1px solid #D8E7FF;
      border-radius:22px;
      padding:24px;
      box-shadow:var(--shadow);
      position:sticky;
      top:86px;
    }
    .tip-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:12px}
    .tip-list li{display:flex;gap:10px;color:#475569;font-size:14px;line-height:1.65}
    .tip-list li:before{content:"●";color:var(--primary);font-size:12px;margin-top:2px}
    .form-card{
      background:#fff;
      border:1px solid #D8E7FF;
      border-radius:24px;
      padding:26px;
      box-shadow:var(--shadow-lg);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-weight:800;color:#334155;font-size:14px}
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid var(--border);
      background:#F8FAFC;
      border-radius:13px;
      padding:12px 13px;
      color:var(--text);
      min-height:46px;
      outline:0;
      transition:border .22s ease,box-shadow .22s ease,background .22s ease;
    }
    .field textarea{min-height:116px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:var(--primary);
      background:#fff;
      box-shadow:0 0 0 4px rgba(37,99,235,.12);
    }
    .checkline{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#475569;
      font-size:14px;
      line-height:1.6;
    }
    .checkline input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary)}
    .form-hint{font-size:13px;color:var(--muted)}
    .form-error{display:none;color:var(--error);font-size:13px}
    .form-success{
      display:none;
      margin-top:16px;
      padding:13px 14px;
      border:1px solid #BBF7D0;
      background:#F0FDF4;
      color:#166534;
      border-radius:14px;
      font-weight:700;
      font-size:14px;
    }
    .faq-wrap{display:grid;gap:12px;max-width:900px;margin:0 auto}
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-top:3px solid #D8E7FF;
      border-radius:16px;
      box-shadow:0 10px 22px rgba(15,23,42,.04);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      min-height:54px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      border:0;
      background:#fff;
      color:#0F172A;
      padding:16px 18px;
      text-align:left;
      font-weight:850;
      transition:background .22s ease,color .22s ease;
    }
    .faq-q:hover{background:#F8FBFF;color:var(--primary)}
    .faq-arrow{transition:transform .22s ease;color:var(--primary);font-size:18px}
    .faq-a{
      display:none;
      padding:0 18px 18px;
      color:#64748B;
      font-size:15px;
      line-height:1.75;
      background:#F8FBFF;
    }
    .faq-item.open .faq-q{background:#F8FBFF;color:var(--primary)}
    .faq-item.open .faq-arrow{transform:rotate(180deg)}
    .faq-item.open .faq-a{display:block}
    .bottom-cta{
      padding:42px 0 70px;
    }
    .cta-box{
      border-radius:26px;
      background:linear-gradient(135deg,#2563EB,#60A5FA);
      color:#fff;
      padding:32px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:22px;
      align-items:center;
      box-shadow:0 22px 48px rgba(37,99,235,.22);
    }
    .cta-box h2{margin:0;font-size:28px;line-height:1.25;font-weight:900}
    .cta-box p{margin:10px 0 0;color:#EAF2FF;max-width:760px}
    .cta-box .btn{background:#fff;color:var(--primary);box-shadow:none}
    .cta-box .btn:hover{background:#EFF6FF}
    .site-footer{
      background:#EFF6FF;
      border-top:1px solid #D8E7FF;
      padding:46px 0 24px;
      color:#475569;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr .9fr .9fr;
      gap:28px;
      align-items:start;
    }
    .footer-title{font-weight:900;color:#0F172A;margin-bottom:12px}
    .footer-brand{display:flex;align-items:center;gap:10px;font-weight:900;color:#0F172A;margin-bottom:12px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#475569;transition:color .22s ease,transform .22s ease}
    .footer-links a:hover{color:var(--primary);transform:translateX(2px)}
    .footer-note{font-size:13px;line-height:1.75;color:#64748B}
    .copyright{
      margin-top:28px;
      padding-top:18px;
      border-top:1px solid #D8E7FF;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      font-size:13px;
      color:#64748B;
    }
    :focus-visible{outline:3px solid rgba(37,99,235,.28);outline-offset:3px}
    @media (max-width:1024px){
      .container{width:min(100% - 32px,var(--container))}
      .search{display:none}
      .hero-grid,.commission-layout,.materials,.join-grid,.news-layout{grid-template-columns:1fr}
      .hero h1{font-size:38px}
      .grid-4{grid-template-columns:repeat(2,1fr)}
      .plan-wrap{grid-template-columns:1fr}
      .plan.featured{transform:none}
      .tip-card{position:static}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .nav-wrap{height:58px;grid-template-columns:1fr auto auto;gap:10px}
      .main-nav{display:none}
      .menu-btn{display:flex}
      .mobile-panel.show{display:block}
      .nav-actions .btn-primary{min-height:38px;padding:8px 12px;font-size:13px}
      .brand-text{max-width:170px}
      .section{padding:56px 0}
      .section-tight{padding:42px 0}
      .section-head{display:block}
      .section-title{font-size:26px}
      .hero{padding:26px 0 54px}
      .hero-band{padding:22px;border-radius:22px}
      .hero-grid{gap:20px}
      .hero h1{font-size:31px}
      .hero-intro{font-size:15px}
      .hero-points,.entry-matrix,.grid-3,.grid-2,.benefit-mosaic{grid-template-columns:1fr}
      .benefit-card:nth-child(2),.benefit-card:nth-child(3){margin-top:0}
      .highlight-strip{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:auto 1fr}
      .news-arrow{display:none}
      .cta-box{grid-template-columns:1fr;padding:24px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container{width:min(100% - 24px,var(--container))}
      .brand-mark{width:32px;height:32px;border-radius:11px}
      .brand-text{font-size:14px;max-width:150px}
      .nav-actions .btn-primary{display:none}
      .hero-band{padding:18px}
      .hero h1{font-size:28px}
      .hero-cta{align-items:stretch}
      .hero-cta .btn{width:100%}
      .card,.form-card,.tip-card{padding:18px}
      .section-title{font-size:24px}
      .cta-box h2{font-size:23px}
    }

/* roulang page: category2 */
:root {
      --primary: #2563EB;
      --primary-dark: #1D4ED8;
      --primary-soft: #EAF2FF;
      --primary-pale: #F4F8FF;
      --accent: #38BDF8;
      --text: #1F2937;
      --muted: #64748B;
      --weak: #94A3B8;
      --border: #E2E8F0;
      --bg: #F8FAFC;
      --card: #FFFFFF;
      --success: #16A34A;
      --warning: #F59E0B;
      --danger: #DC2626;
      --radius-sm: 10px;
      --radius: 16px;
      --radius-lg: 22px;
      --shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 18px 42px rgba(37, 99, 235, 0.13);
      --container: 1160px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 0%, rgba(37, 99, 235, 0.08), transparent 30%),
        linear-gradient(180deg, #F6F9FE 0%, #F8FAFC 36%, #FFFFFF 100%);
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }

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

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

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

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

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .skip-link {
      position: absolute;
      left: -999px;
      top: 12px;
      background: var(--primary);
      color: #fff;
      padding: 10px 14px;
      border-radius: 10px;
      z-index: 99;
    }

    .skip-link:focus {
      left: 12px;
      outline: 3px solid rgba(37, 99, 235, .25);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .94);
      border-bottom: 1px solid rgba(226, 232, 240, .88);
      box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
    }

    .header-inner {
      min-height: 64px;
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), #60A5FA);
      color: #fff;
      font-weight: 800;
      box-shadow: 0 10px 22px rgba(37, 99, 235, .24);
    }

    .brand span:last-child {
      font-size: 17px;
      color: #0F172A;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      justify-content: flex-start;
    }

    .main-nav a {
      font-size: 14px;
      color: var(--muted);
      padding: 9px 13px;
      border-radius: 999px;
      font-weight: 650;
    }

    .main-nav a:hover {
      color: var(--primary);
      background: var(--primary-soft);
    }

    .main-nav a.active {
      color: var(--primary);
      background: #EFF6FF;
      box-shadow: inset 0 0 0 1px rgba(37, 99, 235, .12);
    }

    .header-actions {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 10px;
    }

    .search-mini {
      width: 210px;
      height: 40px;
      display: flex;
      align-items: center;
      gap: 8px;
      background: #F1F5F9;
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0 12px;
      color: var(--weak);
      transition: border .2s ease, background .2s ease, box-shadow .2s ease;
    }

    .search-mini input {
      width: 100%;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--text);
      font-size: 13px;
    }

    .search-mini:focus-within {
      background: #fff;
      border-color: rgba(37, 99, 235, .45);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
    }

    .age-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 12px;
      border-radius: 999px;
      background: #FFF7ED;
      color: #9A3412;
      font-size: 13px;
      font-weight: 700;
      white-space: nowrap;
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      color: var(--primary);
      background: var(--primary-soft);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle:focus-visible,
    .btn:focus-visible,
    .faq-question:focus-visible,
    input:focus,
    textarea:focus,
    select:focus {
      outline: 3px solid rgba(37, 99, 235, .18);
      outline-offset: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 10px 18px;
      border-radius: 999px;
      font-weight: 750;
      font-size: 14px;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border .2s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 12px 24px rgba(37, 99, 235, .22);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(37, 99, 235, .28);
    }

    .btn-secondary {
      background: #fff;
      color: var(--primary);
      border: 1px solid rgba(37, 99, 235, .28);
    }

    .btn-secondary:hover {
      background: #EFF6FF;
      transform: translateY(-2px);
    }

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

    .btn-text:hover {
      color: var(--primary-dark);
      transform: translateX(2px);
    }

    .page-hero {
      padding: 72px 0 44px;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(340px, .78fr);
      gap: 34px;
      align-items: stretch;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      color: var(--primary);
      border: 1px solid rgba(37, 99, 235, .16);
      border-radius: 999px;
      padding: 7px 12px;
      font-size: 13px;
      font-weight: 750;
      box-shadow: 0 8px 18px rgba(15, 23, 42, .04);
      margin-bottom: 18px;
    }

    .page-hero h1 {
      max-width: 820px;
      font-size: clamp(30px, 4.2vw, 48px);
      line-height: 1.16;
      letter-spacing: -0.04em;
      font-weight: 850;
      color: #0F172A;
      margin-bottom: 18px;
    }

    .hero-summary {
      max-width: 760px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.85;
      margin-bottom: 26px;
    }

    .hero-search {
      display: flex;
      gap: 10px;
      align-items: center;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 10px;
      max-width: 700px;
      box-shadow: var(--shadow);
      margin-bottom: 18px;
    }

    .hero-search input {
      flex: 1;
      min-width: 0;
      height: 48px;
      border: 0;
      outline: 0;
      padding: 0 14px;
      color: var(--text);
      background: #F8FAFC;
      border-radius: 14px;
    }

    .quick-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 18px 0 26px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 34px;
      padding: 6px 12px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: #1E40AF;
      font-size: 13px;
      font-weight: 700;
      border: 1px solid rgba(37, 99, 235, .10);
    }

    .tag.light {
      background: #fff;
      color: var(--muted);
      border-color: var(--border);
    }

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

    .hero-note {
      color: var(--weak);
      font-size: 13px;
      margin-top: 14px;
    }

    .side-panel {
      position: relative;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 26px;
      padding: 24px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .side-panel::before {
      content: "";
      position: absolute;
      inset: 0 0 auto 0;
      height: 7px;
      background: linear-gradient(90deg, var(--primary), #93C5FD, #E0F2FE);
    }

    .panel-title {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 16px;
      margin: 10px 0 18px;
    }

    .panel-title h2 {
      font-size: 22px;
      line-height: 1.35;
      color: #0F172A;
    }

    .panel-badge {
      color: var(--success);
      background: #ECFDF5;
      border: 1px solid #BBF7D0;
      border-radius: 999px;
      padding: 5px 10px;
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    .access-matrix {
      display: grid;
      gap: 12px;
    }

    .matrix-item {
      display: grid;
      grid-template-columns: 40px 1fr;
      gap: 12px;
      align-items: start;
      padding: 14px;
      background: #F8FAFC;
      border: 1px solid var(--border);
      border-radius: 16px;
    }

    .matrix-icon {
      width: 40px;
      height: 40px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 900;
    }

    .matrix-item strong {
      display: block;
      font-size: 15px;
      color: #0F172A;
      margin-bottom: 2px;
    }

    .matrix-item span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .section {
      padding: 72px 0;
    }

    .section.compact {
      padding-top: 42px;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, .85fr) minmax(260px, .35fr);
      gap: 30px;
      align-items: end;
      margin-bottom: 28px;
    }

    .section-kicker {
      color: var(--primary);
      font-weight: 800;
      font-size: 14px;
      margin-bottom: 8px;
    }

    .section h2 {
      font-size: clamp(25px, 3vw, 34px);
      line-height: 1.25;
      letter-spacing: -0.03em;
      color: #0F172A;
      margin-bottom: 10px;
    }

    .section-desc {
      color: var(--muted);
      max-width: 760px;
      font-size: 16px;
    }

    .anchor-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 16px;
      box-shadow: var(--shadow);
    }

    .anchor-card p {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 10px;
    }

    .anchor-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .anchor-list a {
      padding: 7px 10px;
      border-radius: 999px;
      background: var(--primary-pale);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
    }

    .anchor-list a:hover {
      background: var(--primary);
      color: #fff;
    }

    .entry-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      grid-template-rows: auto auto;
      gap: 18px;
    }

    .entry-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: var(--shadow);
      transition: transform .2s ease, box-shadow .2s ease, border .2s ease;
      position: relative;
      overflow: hidden;
    }

    .entry-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(37, 99, 235, .24);
    }

    .entry-card.wide {
      grid-row: span 2;
      padding: 26px;
      background:
        linear-gradient(135deg, #FFFFFF 0%, #F4F8FF 100%);
    }

    .entry-card.notice {
      background: #FFFBEB;
      border-color: #FDE68A;
    }

    .entry-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 14px;
    }

    .entry-icon {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 20px;
    }

    .entry-card.notice .entry-icon {
      background: #FEF3C7;
      color: #B45309;
    }

    .entry-card h3 {
      font-size: 21px;
      line-height: 1.35;
      color: #0F172A;
      margin-bottom: 8px;
    }

    .entry-card p {
      color: var(--muted);
      font-size: 15px;
      line-height: 1.75;
    }

    .entry-list {
      list-style: none;
      margin-top: 18px;
      display: grid;
      gap: 10px;
    }

    .entry-list li {
      display: flex;
      gap: 10px;
      color: var(--text);
      font-size: 14px;
      align-items: flex-start;
    }

    .check {
      width: 20px;
      height: 20px;
      flex: 0 0 20px;
      border-radius: 50%;
      background: #DBEAFE;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      margin-top: 3px;
      font-weight: 900;
    }

    .compare-wrap {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th {
      background: #EAF2FF;
      color: #1E3A8A;
      padding: 16px;
      font-size: 14px;
      white-space: nowrap;
    }

    .compare-table td {
      padding: 18px 16px;
      border-top: 1px solid var(--border);
      vertical-align: top;
      color: var(--muted);
      font-size: 14px;
    }

    .compare-table td strong {
      color: #0F172A;
      display: block;
      margin-bottom: 4px;
    }

    .compare-table .recommended {
      color: var(--primary);
      font-weight: 800;
    }

    .mobile-compare {
      display: none;
      gap: 14px;
    }

    .mobile-plan {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 18px;
      box-shadow: var(--shadow);
    }

    .mobile-plan h3 {
      font-size: 18px;
      margin-bottom: 10px;
    }

    .mobile-plan dl {
      display: grid;
      gap: 10px;
    }

    .mobile-plan dt {
      color: #0F172A;
      font-weight: 800;
      font-size: 13px;
    }

    .mobile-plan dd {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 4px;
    }

    .feature-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-top: 20px;
    }

    .strip-item {
      background: var(--primary-pale);
      border: 1px solid #D8E7FF;
      border-radius: 16px;
      padding: 16px;
    }

    .strip-item strong {
      color: #0F172A;
      display: block;
      margin-bottom: 4px;
    }

    .strip-item span {
      color: var(--muted);
      font-size: 13px;
      display: block;
    }

    .notes-layout {
      display: grid;
      grid-template-columns: .84fr 1.16fr;
      gap: 22px;
      align-items: start;
    }

    .timeline-box {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: 22px;
    }

    .timeline-item {
      position: relative;
      padding-left: 34px;
      padding-bottom: 22px;
      border-left: 2px solid #DBEAFE;
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .timeline-item::before {
      content: "";
      position: absolute;
      left: -8px;
      top: 6px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #fff;
      box-shadow: 0 0 0 4px #DBEAFE;
    }

    .timeline-item .phase {
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 3px;
    }

    .timeline-item h3 {
      font-size: 18px;
      color: #0F172A;
      margin-bottom: 5px;
    }

    .timeline-item p {
      color: var(--muted);
      font-size: 14px;
    }

    .article-panel {
      display: grid;
      gap: 14px;
    }

    .article-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 18px;
      box-shadow: 0 10px 24px rgba(15, 23, 42, .045);
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 14px;
      align-items: start;
      transition: transform .2s ease, box-shadow .2s ease, border .2s ease;
    }

    .article-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(37, 99, 235, .25);
    }

    .article-card:hover h3 {
      color: var(--primary);
    }

    .article-mark {
      width: 12px;
      height: 58px;
      border-radius: 999px;
      background: linear-gradient(180deg, var(--primary), #93C5FD);
    }

    .article-card h3 {
      font-size: 18px;
      line-height: 1.4;
      color: #0F172A;
      transition: color .2s ease;
      margin-bottom: 5px;
    }

    .article-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 10px;
    }

    .article-date {
      color: var(--weak);
      font-size: 13px;
      white-space: nowrap;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .36fr .64fr;
      gap: 24px;
      align-items: start;
    }

    .faq-side {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: var(--shadow);
    }

    .faq-side h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }

    .faq-side p {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 16px;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      overflow: hidden;
      box-shadow: 0 10px 24px rgba(15, 23, 42, .04);
    }

    .faq-item.active {
      border-color: rgba(37, 99, 235, .25);
      background: #F8FBFF;
    }

    .faq-question {
      width: 100%;
      min-height: 54px;
      padding: 16px 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      color: #0F172A;
      text-align: left;
      font-weight: 800;
    }

    .faq-arrow {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: var(--primary-soft);
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 26px;
      transition: transform .2s ease;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

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

    .cta-section {
      padding: 78px 0 84px;
    }

    .cta-wrap {
      background:
        radial-gradient(circle at 88% 20%, rgba(255, 255, 255, .72), transparent 28%),
        linear-gradient(135deg, #DBEAFE 0%, #F4F8FF 48%, #FFFFFF 100%);
      border: 1px solid #D8E7FF;
      border-radius: 30px;
      padding: 28px;
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 24px;
      align-items: stretch;
    }

    .cta-copy {
      padding: 14px 10px;
    }

    .cta-copy h2 {
      font-size: clamp(25px, 3vw, 34px);
      line-height: 1.25;
      margin-bottom: 12px;
      color: #0F172A;
    }

    .cta-copy p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .tip-card {
      background: rgba(255, 255, 255, .75);
      border: 1px solid rgba(226, 232, 240, .9);
      border-radius: 18px;
      padding: 16px;
    }

    .tip-card strong {
      color: #0F172A;
      display: block;
      margin-bottom: 8px;
    }

    .tip-card ul {
      list-style: none;
      display: grid;
      gap: 8px;
    }

    .tip-card li {
      color: var(--muted);
      font-size: 14px;
      display: flex;
      gap: 8px;
    }

    .form-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 24px;
      box-shadow: 0 16px 40px rgba(15, 23, 42, .08);
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .field {
      display: grid;
      gap: 6px;
    }

    .field.full {
      grid-column: 1 / -1;
    }

    .field label {
      color: #0F172A;
      font-weight: 750;
      font-size: 14px;
    }

    .field input,
    .field select,
    .field textarea {
      width: 100%;
      min-height: 46px;
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 10px 12px;
      color: var(--text);
      background: #fff;
      transition: border .2s ease, box-shadow .2s ease, background .2s ease;
      outline: none;
    }

    .field textarea {
      min-height: 108px;
      resize: vertical;
    }

    .field input:focus,
    .field select:focus,
    .field textarea:focus {
      border-color: rgba(37, 99, 235, .55);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
      background: #FCFDFF;
    }

    .field-error {
      display: none;
      color: var(--danger);
      font-size: 12px;
    }

    .field.invalid .field-error {
      display: block;
    }

    .field.invalid input,
    .field.invalid select,
    .field.invalid textarea {
      border-color: rgba(220, 38, 38, .55);
    }

    .check-row {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      margin-top: 10px;
    }

    .check-row input {
      width: 18px;
      height: 18px;
      margin-top: 3px;
      accent-color: var(--primary);
      flex: 0 0 auto;
    }

    .form-status {
      display: none;
      margin-top: 14px;
      padding: 12px 14px;
      border-radius: 14px;
      font-size: 14px;
    }

    .form-status.success {
      display: block;
      color: #166534;
      background: #ECFDF5;
      border: 1px solid #BBF7D0;
    }

    .site-footer {
      background: #EEF4FC;
      border-top: 1px solid #D8E7FF;
      padding: 48px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .78fr .9fr .9fr;
      gap: 30px;
      padding-bottom: 28px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 850;
      color: #0F172A;
      margin-bottom: 12px;
    }

    .footer-title {
      color: #0F172A;
      font-weight: 850;
      margin-bottom: 12px;
    }

    .footer-note {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

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

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

    .copyright {
      border-top: 1px solid #D8E7FF;
      padding-top: 18px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--weak);
      font-size: 13px;
    }

    .mobile-drawer {
      display: none;
    }

    @media (max-width: 1024px) {
      .header-inner {
        grid-template-columns: auto auto;
        justify-content: space-between;
      }

      .desktop-nav,
      .header-actions .search-mini,
      .header-actions .age-pill {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .mobile-drawer {
        display: none;
        position: fixed;
        top: 72px;
        left: 20px;
        right: 20px;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 22px;
        box-shadow: 0 24px 60px rgba(15, 23, 42, .16);
        padding: 16px;
        z-index: 60;
      }

      .mobile-drawer.open {
        display: block;
      }

      .mobile-drawer .main-nav {
        display: grid;
        gap: 6px;
      }

      .mobile-drawer .main-nav a {
        min-height: 44px;
        display: flex;
        align-items: center;
      }

      .drawer-actions {
        display: grid;
        gap: 10px;
        margin-top: 14px;
        padding-top: 14px;
        border-top: 1px solid var(--border);
      }

      .hero-layout,
      .section-head,
      .notes-layout,
      .faq-grid,
      .cta-wrap {
        grid-template-columns: 1fr;
      }

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

      .entry-card.wide {
        grid-row: auto;
      }

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

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

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .brand span:last-child {
        font-size: 15px;
        max-width: 220px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .page-hero {
        padding: 50px 0 28px;
      }

      .section {
        padding: 50px 0;
      }

      .hero-search {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-search input {
        width: 100%;
      }

      .hero-actions,
      .quick-tags {
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .compare-wrap {
        display: none;
      }

      .mobile-compare {
        display: grid;
      }

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

      .article-date {
        grid-column: 2;
      }

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

      .cta-wrap {
        padding: 18px;
        border-radius: 24px;
      }

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

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .header-inner {
        min-height: 58px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        border-radius: 11px;
      }

      .page-hero h1 {
        font-size: 30px;
      }

      .side-panel,
      .entry-card,
      .timeline-box,
      .faq-side,
      .form-card {
        border-radius: 18px;
        padding: 18px;
      }

      .section h2,
      .cta-copy h2 {
        font-size: 25px;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #2563EB;
      --primary-dark: #1D4ED8;
      --primary-soft: #EAF2FF;
      --primary-soft-2: #F4F8FF;
      --sky: #D8E7FF;
      --text: #1F2937;
      --muted: #64748B;
      --light-muted: #94A3B8;
      --border: #E2E8F0;
      --bg: #F8FAFC;
      --card: #FFFFFF;
      --success: #16A34A;
      --warning: #F59E0B;
      --danger: #DC2626;
      --radius-sm: 10px;
      --radius: 18px;
      --radius-lg: 26px;
      --shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
      --shadow-strong: 0 18px 46px rgba(37, 99, 235, 0.14);
      --container: 1160px;
      --header-h: 64px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top right, rgba(216, 231, 255, 0.72), transparent 34rem),
        linear-gradient(180deg, #F6F9FE 0%, #F8FAFC 42%, #FFFFFF 100%);
      line-height: 1.75;
      min-width: 320px;
    }

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

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

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

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

    :focus-visible {
      outline: 3px solid rgba(37, 99, 235, 0.22);
      outline-offset: 3px;
      border-radius: 10px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.92);
      border-bottom: 1px solid rgba(226, 232, 240, 0.88);
      box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
      backdrop-filter: blur(10px);
    }

    .header-inner {
      height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      color: var(--text);
      letter-spacing: -0.02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      color: #fff;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), #60A5FA);
      box-shadow: 0 10px 22px rgba(37, 99, 235, 0.22);
    }

    .brand-text {
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 260px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
      margin-right: auto;
    }

    .main-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 8px 14px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 650;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .main-nav a:hover {
      color: var(--primary);
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .main-nav a.active {
      color: var(--primary);
      background: #EFF6FF;
      box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.14);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .search-pill {
      width: 210px;
      height: 40px;
      display: flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: #F8FAFC;
      padding: 0 14px;
      color: var(--light-muted);
      font-size: 13px;
    }

    .search-pill svg {
      width: 16px;
      height: 16px;
      flex: 0 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 11px 18px;
      border-radius: 999px;
      font-weight: 750;
      font-size: 14px;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 18px 30px rgba(37, 99, 235, 0.26);
    }

    .btn-secondary {
      color: var(--primary);
      background: #fff;
      border: 1px solid rgba(37, 99, 235, 0.22);
    }

    .btn-secondary:hover {
      background: #EFF6FF;
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--text);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      position: relative;
      transition: .2s ease;
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

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

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

    .mobile-panel {
      display: none;
      border-top: 1px solid var(--border);
      background: #fff;
      padding: 12px 0 18px;
      box-shadow: 0 20px 34px rgba(15, 23, 42, 0.08);
    }

    .mobile-panel.open {
      display: block;
    }

    .mobile-panel .main-nav {
      display: grid;
      gap: 8px;
      margin: 0;
    }

    .mobile-panel .main-nav a {
      min-height: 46px;
      border-radius: 14px;
      padding: 10px 14px;
    }

    .mobile-panel .mobile-search {
      margin-top: 12px;
      width: 100%;
    }

    main {
      overflow: hidden;
    }

    .page-hero {
      padding: 72px 0 54px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(360px, .82fr);
      gap: 34px;
      align-items: stretch;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 12px;
      border-radius: 999px;
      color: var(--primary);
      background: var(--primary-soft);
      border: 1px solid rgba(37, 99, 235, 0.12);
      font-size: 13px;
      font-weight: 750;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--primary);
      box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.12);
    }

    h1 {
      margin-top: 18px;
      font-size: clamp(30px, 4.2vw, 48px);
      line-height: 1.18;
      letter-spacing: -0.04em;
      font-weight: 820;
      color: #0F172A;
    }

    .hero-summary {
      margin-top: 18px;
      max-width: 760px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.86;
    }

    .hero-actions {
      margin-top: 28px;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .notice-strip {
      margin-top: 24px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 780px;
    }

    .notice-item {
      padding: 14px 16px;
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid var(--border);
      border-radius: 16px;
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
    }

    .notice-item strong {
      display: block;
      color: #0F172A;
      line-height: 1.35;
      font-size: 15px;
    }

    .notice-item span {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .preview-card {
      position: relative;
      min-height: 440px;
      border-radius: 30px;
      padding: 22px;
      border: 1px solid rgba(216, 231, 255, 0.95);
      background:
        linear-gradient(180deg, rgba(255,255,255,.94), rgba(244,248,255,.96)),
        radial-gradient(circle at 80% 0%, rgba(96, 165, 250, 0.22), transparent 16rem);
      box-shadow: var(--shadow-strong);
      overflow: hidden;
    }

    .preview-card::after {
      content: "";
      position: absolute;
      right: -66px;
      bottom: -74px;
      width: 190px;
      height: 190px;
      border-radius: 48px;
      background: rgba(37, 99, 235, 0.08);
      transform: rotate(18deg);
    }

    .preview-top {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--border);
    }

    .preview-title {
      font-weight: 800;
      color: #0F172A;
      font-size: 17px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--success);
      background: rgba(22, 163, 74, 0.09);
      border: 1px solid rgba(22, 163, 74, 0.15);
      border-radius: 999px;
      padding: 6px 10px;
      font-size: 12px;
      font-weight: 750;
      white-space: nowrap;
    }

    .countdown-box {
      position: relative;
      z-index: 1;
      margin-top: 20px;
      padding: 18px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 14px 28px rgba(15, 23, 42, 0.05);
    }

    .countdown-label {
      color: var(--muted);
      font-size: 13px;
    }

    .countdown {
      margin-top: 8px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 8px;
    }

    .time-unit {
      background: var(--primary-soft-2);
      border: 1px solid #DDEAFF;
      border-radius: 16px;
      padding: 10px 6px;
      text-align: center;
    }

    .time-unit strong {
      display: block;
      font-size: 24px;
      line-height: 1.1;
      color: var(--primary);
    }

    .time-unit span {
      font-size: 12px;
      color: var(--muted);
    }

    .preview-list {
      position: relative;
      z-index: 1;
      margin-top: 18px;
      display: grid;
      gap: 10px;
    }

    .preview-row {
      display: grid;
      grid-template-columns: 42px minmax(0, 1fr);
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.84);
      border: 1px solid rgba(226, 232, 240, 0.9);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .preview-row:hover {
      transform: translateY(-2px);
      border-color: rgba(37, 99, 235, 0.2);
      box-shadow: var(--shadow);
    }

    .preview-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      background: var(--primary-soft);
      font-weight: 800;
    }

    .preview-row strong {
      display: block;
      color: #0F172A;
      line-height: 1.35;
    }

    .preview-row span {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .subscribe-line {
      position: relative;
      z-index: 1;
      margin-top: 18px;
      display: flex;
      gap: 10px;
    }

    .subscribe-line input {
      flex: 1;
      min-width: 0;
      height: 46px;
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 0 15px;
      background: #fff;
      color: var(--text);
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .subscribe-line input:focus {
      outline: none;
      border-color: rgba(37, 99, 235, 0.55);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    }

    .section {
      padding: 72px 0;
    }

    .section.compact {
      padding-top: 36px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .section-kicker {
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .02em;
    }

    h2 {
      margin-top: 6px;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.25;
      letter-spacing: -0.03em;
      color: #0F172A;
      font-weight: 800;
    }

    .section-desc {
      max-width: 620px;
      color: var(--muted);
      font-size: 15px;
    }

    .tag-filter {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      padding: 16px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }

    .filter-tag {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 7px 13px;
      border-radius: 999px;
      color: var(--muted);
      background: #F8FAFC;
      border: 1px solid var(--border);
      font-size: 13px;
      font-weight: 700;
      transition: .2s ease;
    }

    .filter-tag:hover,
    .filter-tag.active {
      color: var(--primary);
      background: var(--primary-soft);
      border-color: rgba(37, 99, 235, 0.22);
      transform: translateY(-1px);
    }

    .content-shell {
      display: grid;
      grid-template-columns: minmax(0, 8fr) minmax(300px, 4fr);
      gap: 26px;
      align-items: start;
    }

    .article-column {
      display: grid;
      gap: 16px;
    }

    .guide-card {
      position: relative;
      display: grid;
      grid-template-columns: 16px minmax(0, 1fr);
      gap: 16px;
      padding: 22px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .guide-card:hover {
      transform: translateY(-2px);
      border-color: rgba(37, 99, 235, 0.22);
      box-shadow: 0 18px 40px rgba(15, 23, 42, 0.09);
    }

    .guide-card:hover h3 {
      color: var(--primary);
    }

    .color-bar {
      width: 16px;
      border-radius: 999px;
      background: linear-gradient(180deg, var(--primary), #93C5FD);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.35);
    }

    .guide-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      margin-bottom: 8px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 12px;
      font-weight: 800;
    }

    .meta-text {
      color: var(--light-muted);
      font-size: 13px;
    }

    .guide-card h3 {
      color: #0F172A;
      font-size: 21px;
      line-height: 1.35;
      font-weight: 800;
      transition: color .2s ease;
    }

    .guide-card p {
      margin-top: 8px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.78;
    }

    .guide-footer {
      margin-top: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
    }

    .text-link {
      color: var(--primary);
      font-weight: 800;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .text-link::after {
      content: "→";
      transition: transform .2s ease;
    }

    .text-link:hover::after {
      transform: translateX(3px);
    }

    .sidebar {
      position: sticky;
      top: calc(var(--header-h) + 18px);
      display: grid;
      gap: 16px;
    }

    .side-card {
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      padding: 20px;
    }

    .side-card.highlight {
      background: linear-gradient(180deg, #FFFFFF 0%, #F4F8FF 100%);
      border-color: #D8E7FF;
    }

    .side-title {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #0F172A;
      font-weight: 820;
      font-size: 17px;
      margin-bottom: 12px;
    }

    .side-title .dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--primary);
      box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.1);
    }

    .check-list {
      list-style: none;
      display: grid;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .check-list li {
      position: relative;
      padding-left: 24px;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--success);
      font-weight: 900;
    }

    .side-links {
      display: grid;
      gap: 10px;
    }

    .side-links a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 13px;
      border-radius: 15px;
      border: 1px solid var(--border);
      background: #F8FAFC;
      color: var(--text);
      font-weight: 700;
      font-size: 14px;
      transition: .2s ease;
    }

    .side-links a:hover {
      color: var(--primary);
      background: var(--primary-soft);
      border-color: rgba(37, 99, 235, 0.18);
      transform: translateY(-1px);
    }

    .timeline {
      position: relative;
      display: grid;
      gap: 16px;
      max-width: 900px;
    }

    .timeline::before {
      content: "";
      position: absolute;
      left: 23px;
      top: 18px;
      bottom: 18px;
      width: 2px;
      background: #D8E7FF;
    }

    .timeline-item {
      position: relative;
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr);
      gap: 18px;
    }

    .timeline-node {
      position: relative;
      z-index: 1;
      width: 48px;
      height: 48px;
      border-radius: 16px;
      background: var(--primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
    }

    .timeline-card {
      background: #fff;
      border: 1px solid var(--border);
      border-left: 4px solid var(--primary);
      border-radius: 20px;
      padding: 18px 20px;
      box-shadow: var(--shadow);
    }

    .timeline-card span {
      display: inline-flex;
      color: var(--primary);
      background: var(--primary-soft);
      border-radius: 999px;
      padding: 4px 10px;
      font-size: 12px;
      font-weight: 800;
    }

    .timeline-card h3 {
      margin-top: 8px;
      color: #0F172A;
      font-size: 20px;
      line-height: 1.35;
    }

    .timeline-card p {
      margin-top: 6px;
      color: var(--muted);
      font-size: 15px;
    }

    .cta-panel {
      border-radius: 30px;
      padding: 34px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.92), rgba(96, 165, 250, 0.86)),
        radial-gradient(circle at 82% 16%, rgba(255, 255, 255, 0.28), transparent 18rem);
      color: #fff;
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(320px, .72fr);
      gap: 28px;
      align-items: center;
      box-shadow: 0 22px 54px rgba(37, 99, 235, 0.22);
    }

    .cta-panel h2 {
      color: #fff;
      margin-top: 0;
    }

    .cta-panel p {
      margin-top: 12px;
      color: rgba(255, 255, 255, 0.88);
      max-width: 650px;
    }

    .mini-form {
      background: #fff;
      border-radius: 24px;
      padding: 20px;
      box-shadow: 0 18px 36px rgba(15, 23, 42, 0.12);
    }

    .field {
      display: grid;
      gap: 7px;
      margin-bottom: 12px;
    }

    .field label {
      color: var(--text);
      font-size: 13px;
      font-weight: 800;
    }

    .field input,
    .field select {
      height: 46px;
      border-radius: 14px;
      border: 1px solid var(--border);
      padding: 0 13px;
      background: #fff;
      color: var(--text);
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .field input:focus,
    .field select:focus {
      outline: none;
      border-color: rgba(37, 99, 235, 0.6);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    }

    .checkbox-line {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
      margin: 12px 0;
    }

    .checkbox-line input {
      width: 17px;
      height: 17px;
      margin-top: 2px;
      accent-color: var(--primary);
      flex: 0 0 auto;
    }

    .form-message {
      display: none;
      margin-top: 12px;
      padding: 10px 12px;
      border-radius: 14px;
      font-size: 13px;
      font-weight: 700;
    }

    .form-message.success {
      display: block;
      color: #166534;
      background: rgba(22, 163, 74, 0.1);
      border: 1px solid rgba(22, 163, 74, 0.18);
    }

    .form-message.error {
      display: block;
      color: #991B1B;
      background: rgba(220, 38, 38, 0.08);
      border: 1px solid rgba(220, 38, 38, 0.15);
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .faq-question {
      width: 100%;
      min-height: 54px;
      padding: 16px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: #0F172A;
      font-weight: 800;
      text-align: left;
      border-top: 3px solid transparent;
      transition: background .2s ease, color .2s ease;
    }

    .faq-question:hover {
      color: var(--primary);
      background: #F8FAFC;
    }

    .faq-question .arrow {
      width: 24px;
      height: 24px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      transition: transform .2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.78;
    }

    .faq-item.open {
      background: #F8FBFF;
      border-color: #D8E7FF;
    }

    .faq-item.open .faq-question {
      border-top-color: var(--primary);
    }

    .faq-item.open .faq-question .arrow {
      transform: rotate(180deg);
    }

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

    .site-footer {
      background: #EEF4FF;
      border-top: 1px solid #DCEBFF;
      padding: 54px 0 26px;
      color: var(--muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .75fr 1fr 1fr;
      gap: 28px;
      align-items: start;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #0F172A;
      font-weight: 850;
      margin-bottom: 12px;
    }

    .footer-note {
      font-size: 14px;
      line-height: 1.76;
      color: var(--muted);
    }

    .footer-title {
      color: #0F172A;
      font-weight: 850;
      margin-bottom: 12px;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
      transition: color .2s ease, transform .2s ease;
    }

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

    .copyright {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(148, 163, 184, 0.28);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      font-size: 13px;
      color: #73829A;
    }

    @media (max-width: 1024px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .search-pill {
        display: none;
      }

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

      .preview-card {
        min-height: auto;
      }

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

      .sidebar {
        position: static;
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }

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

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

    @media (max-width: 768px) {
      :root {
        --header-h: 60px;
      }

      .header-inner {
        gap: 12px;
      }

      .desktop-nav,
      .header-actions .btn-primary,
      .header-actions .search-pill {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .brand-text {
        max-width: 190px;
        font-size: 15px;
      }

      .page-hero {
        padding: 48px 0 34px;
      }

      .hero-summary {
        font-size: 16px;
      }

      .notice-strip {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 54px 0;
      }

      .section-head {
        display: grid;
        gap: 10px;
      }

      .content-shell {
        gap: 18px;
      }

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

      .guide-card {
        grid-template-columns: 10px minmax(0, 1fr);
        padding: 18px;
      }

      .color-bar {
        width: 10px;
      }

      .guide-footer {
        align-items: flex-start;
      }

      .countdown {
        grid-template-columns: repeat(4, minmax(0, 1fr));
      }

      .time-unit strong {
        font-size: 20px;
      }

      .subscribe-line {
        display: grid;
      }

      .timeline::before {
        left: 18px;
      }

      .timeline-item {
        grid-template-columns: 38px minmax(0, 1fr);
        gap: 12px;
      }

      .timeline-node {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

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

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

    @media (max-width: 520px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .brand-mark {
        width: 34px;
        height: 34px;
      }

      .brand-text {
        max-width: 150px;
      }

      .hero-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
      }

      .preview-card {
        padding: 16px;
        border-radius: 24px;
      }

      .preview-top {
        align-items: flex-start;
        flex-direction: column;
      }

      .tag-filter {
        padding: 12px;
      }

      .filter-tag {
        flex: 1 1 auto;
        justify-content: center;
      }

      .guide-card h3 {
        font-size: 19px;
      }

      .cta-panel {
        padding: 20px;
      }

      .mini-form {
        padding: 16px;
      }

      .copyright {
        display: grid;
      }
    }