/* roulang page: index */
:root{
      --bg:#0b1020;
      --bg-soft:#11182d;
      --surface:#ffffff;
      --surface-soft:#f6f8fc;
      --surface-tint:#eef4ff;
      --text:#172033;
      --muted:#667085;
      --muted-2:#98a2b3;
      --primary:#6d5dfc;
      --primary-dark:#5142de;
      --secondary:#13b8a6;
      --accent:#ffb020;
      --danger:#ef4444;
      --border:#e5eaf3;
      --border-dark:rgba(255,255,255,.16);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 18px 50px rgba(20,31,56,.12);
      --shadow-hover:0 22px 70px rgba(20,31,56,.18);
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:linear-gradient(180deg,#f7f9ff 0%,#ffffff 34%,#f7f9ff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(109,93,252,.18)}
    .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:1000
    }
    .skip-link:focus{left:12px;outline:3px solid rgba(255,255,255,.55)}
    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(229,234,243,.78);
    }
    .nav{
      min-height:76px;
      display:flex;align-items:center;justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;
      font-weight:900;letter-spacing:-.02em;
      color:#111827;
      min-width:0;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      display:grid;place-items:center;
      color:#fff;font-weight:900;
      box-shadow:0 12px 28px rgba(109,93,252,.28);
      flex:none;
    }
    .brand-text{
      display:block;
      font-size:18px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:310px;
    }
    .nav-links{
      display:flex;align-items:center;gap:8px;
      padding:6px;border:1px solid var(--border);
      border-radius:999px;background:#fff;
      box-shadow:0 8px 24px rgba(18,28,45,.04);
    }
    .nav-link{
      padding:10px 18px;
      border-radius:999px;
      color:#475467;
      font-weight:700;
      transition:.22s ease;
    }
    .nav-link:hover{color:var(--primary);background:rgba(109,93,252,.08)}
    .nav-link.active{color:#fff;background:var(--primary);box-shadow:0 10px 22px rgba(109,93,252,.26)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .age-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:10px 14px;border-radius:999px;
      background:#fff7e6;color:#8a5700;
      border:1px solid #ffe1a3;
      font-weight:800;font-size:14px;
    }
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:#fff;border:1px solid var(--border);
      color:var(--text);
      align-items:center;justify-content:center;
      transition:.2s ease;
    }
    .menu-toggle:hover{border-color:rgba(109,93,252,.45);color:var(--primary)}
    .hero{
      position:relative;
      isolation:isolate;
      min-height:720px;
      display:flex;
      align-items:center;
      overflow:hidden;
      background:
        linear-gradient(90deg,rgba(10,15,32,.92) 0%,rgba(10,15,32,.78) 48%,rgba(10,15,32,.38) 100%),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      color:#fff;
    }
    .hero:before{
      content:"";
      position:absolute;inset:auto -10% -34% -10%;
      height:360px;
      background:radial-gradient(circle at 50% 0%,rgba(109,93,252,.38),transparent 65%);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
      gap:48px;
      align-items:center;
      padding:74px 0;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:10px;
      padding:8px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);
      color:#eef4ff;
      font-weight:800;
      margin-bottom:22px;
    }
    .eyebrow-dot{
      width:9px;height:9px;border-radius:50%;
      background:var(--secondary);
      box-shadow:0 0 0 7px rgba(19,184,166,.16);
    }
    h1{
      margin:0;
      font-size:clamp(42px,6vw,76px);
      line-height:1.04;
      letter-spacing:-.06em;
      max-width:850px;
    }
    .hero-subtitle{
      margin:24px 0 0;
      max-width:720px;
      color:rgba(255,255,255,.82);
      font-size:20px;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;flex-wrap:wrap;gap:14px;
      margin-top:34px;
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;
      min-height:50px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:900;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      user-select:none;
    }
    .btn:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(109,93,252,.35);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#8b7dff);
      box-shadow:0 18px 34px rgba(109,93,252,.34);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 46px rgba(109,93,252,.42)}
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.24);
      backdrop-filter:blur(10px);
    }
    .btn-secondary:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
    .btn-light{
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(109,93,252,.12);
      box-shadow:0 14px 26px rgba(18,28,45,.08);
    }
    .btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(18,28,45,.12)}
    .hero-panel{
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      border-radius:var(--radius-lg);
      padding:24px;
      backdrop-filter:blur(20px);
      box-shadow:0 30px 80px rgba(0,0,0,.24);
    }
    .hero-panel-top{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      margin-bottom:18px;
    }
    .safe-badge{
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(19,184,166,.14);
      border:1px solid rgba(19,184,166,.28);
      color:#dffcf7;font-weight:800;font-size:14px;
    }
    .hero-panel-title{font-size:22px;font-weight:900;margin:0 0 4px}
    .hero-panel-desc{margin:0;color:rgba(255,255,255,.7);font-size:14px}
    .check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:12px}
    .check-list li{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.86);
    }
    .check-icon{
      width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(19,184,166,.18);
      color:#7ff1df;
      flex:none;font-weight:900;
    }
    .section{padding:88px 0}
    .section.compact{padding:64px 0}
    .section-head{
      display:flex;align-items:flex-end;justify-content:space-between;
      gap:28px;margin-bottom:34px;
    }
    .section-kicker{
      color:var(--primary);
      font-weight:900;
      letter-spacing:.04em;
      margin:0 0 8px;
    }
    .section-title{
      margin:0;
      font-size:clamp(30px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.04em;
      color:#111827;
    }
    .section-desc{
      margin:12px 0 0;
      color:var(--muted);
      max-width:720px;
      font-size:17px;
    }
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .card{
      background:rgba(255,255,255,.88);
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:0 14px 36px rgba(18,28,45,.06);
      transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
      overflow:hidden;
    }
    .card:hover{
      transform:translateY(-5px);
      border-color:rgba(109,93,252,.28);
      box-shadow:var(--shadow-hover);
    }
    .feature-card{padding:28px}
    .icon-box{
      width:54px;height:54px;border-radius:18px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(109,93,252,.14),rgba(19,184,166,.12));
      color:var(--primary);
      font-size:24px;
      margin-bottom:18px;
    }
    .card h3{margin:0 0 10px;font-size:21px;letter-spacing:-.02em}
    .card p{margin:0;color:var(--muted)}
    .notice-band{
      background:linear-gradient(135deg,#111827,#1d2550);
      color:#fff;
      border-radius:var(--radius-lg);
      padding:34px;
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:30px;
      align-items:center;
      box-shadow:0 28px 70px rgba(15,23,42,.22);
      overflow:hidden;
      position:relative;
    }
    .notice-band:after{
      content:"";
      position:absolute;right:-90px;top:-110px;
      width:320px;height:320px;border-radius:50%;
      background:radial-gradient(circle,rgba(255,176,32,.24),transparent 64%);
    }
    .notice-band h2{margin:0;font-size:32px;letter-spacing:-.03em}
    .notice-band p{margin:12px 0 0;color:rgba(255,255,255,.72)}
    .notice-points{
      display:grid;gap:12px;position:relative;z-index:1;
    }
    .notice-point{
      display:flex;align-items:center;gap:10px;
      padding:12px 14px;border-radius:16px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
      font-weight:800;
    }
    .image-split{
      display:grid;
      grid-template-columns:.96fr 1.04fr;
      gap:34px;
      align-items:center;
    }
    .media-card{
      position:relative;
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow);
      min-height:430px;
      background:#dfe7ff;
    }
    .media-card img{
      width:100%;height:100%;min-height:430px;
      object-fit:cover;
    }
    .media-label{
      position:absolute;left:22px;bottom:22px;right:22px;
      padding:18px;
      border-radius:20px;
      color:#fff;
      background:rgba(10,15,32,.66);
      backdrop-filter:blur(16px);
      border:1px solid rgba(255,255,255,.18);
    }
    .media-label strong{display:block;font-size:18px;margin-bottom:4px}
    .media-label span{color:rgba(255,255,255,.75)}
    .step-list{display:grid;gap:16px}
    .step-item{
      display:grid;grid-template-columns:auto 1fr;gap:16px;
      padding:20px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 10px 28px rgba(18,28,45,.05);
    }
    .step-num{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:var(--surface-tint);
      color:var(--primary);
      font-weight:900;
    }
    .step-item h3{margin:0 0 4px;font-size:19px}
    .step-item p{margin:0;color:var(--muted)}
    .stats-wrap{
      background:var(--surface-soft);
      border-top:1px solid var(--border);
      border-bottom:1px solid var(--border);
    }
    .stat-card{
      padding:26px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius);
      text-align:center;
      box-shadow:0 10px 24px rgba(18,28,45,.05);
    }
    .stat-num{
      font-size:36px;
      line-height:1;
      font-weight:950;
      color:var(--primary);
      letter-spacing:-.04em;
      margin-bottom:8px;
    }
    .stat-label{color:var(--muted);font-weight:700}
    .article-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
    }
    .article-card{
      display:flex;flex-direction:column;min-height:100%;
      background:#fff;border:1px solid var(--border);
      border-radius:var(--radius);
      overflow:hidden;
      box-shadow:0 14px 32px rgba(18,28,45,.06);
      transition:.24s ease;
    }
    .article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(109,93,252,.26)}
    .article-cover{height:180px;background:var(--surface-tint);overflow:hidden}
    .article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
    .article-card:hover .article-cover img{transform:scale(1.05)}
    .article-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
    .meta-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted-2);font-size:13px}
    .tag{
      display:inline-flex;align-items:center;
      padding:5px 10px;border-radius:999px;
      background:rgba(109,93,252,.1);
      color:var(--primary);
      font-weight:900;
      font-size:13px;
    }
    .article-title{margin:0;font-size:20px;line-height:1.35;letter-spacing:-.02em}
    .article-summary{margin:0;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
    .read-more{
      margin-top:auto;
      display:inline-flex;align-items:center;gap:8px;
      color:var(--primary);
      font-weight:900;
    }
    .read-more:hover{color:var(--primary-dark)}
    .empty-state{
      grid-column:1/-1;
      padding:34px;
      border:1px dashed rgba(109,93,252,.35);
      border-radius:var(--radius);
      text-align:center;
      color:var(--muted);
      background:#fff;
    }
    .resource-card{
      position:relative;
      min-height:300px;
      padding:28px;
      color:#fff;
      overflow:hidden;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
    }
    .resource-card img{
      position:absolute;inset:0;
      width:100%;height:100%;object-fit:cover;
      z-index:0;transition:.4s ease;
    }
    .resource-card:before{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(9,13,28,.05),rgba(9,13,28,.82));
      z-index:1;
    }
    .resource-card:hover img{transform:scale(1.05)}
    .resource-content{position:relative;z-index:2}
    .resource-content h3{font-size:24px;color:#fff}
    .resource-content p{color:rgba(255,255,255,.78)}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:start}
    .faq-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius);
      overflow:hidden;
      box-shadow:0 14px 34px rgba(18,28,45,.06);
    }
    .faq-item + .faq-item{border-top:1px solid var(--border)}
    .faq-question{
      width:100%;
      display:flex;align-items:center;justify-content:space-between;gap:20px;
      padding:22px 24px;
      background:#fff;
      color:var(--text);
      font-weight:900;
      text-align:left;
    }
    .faq-question:hover{background:var(--surface-soft)}
    .faq-icon{
      width:26px;height:26px;border-radius:50%;
      display:grid;place-items:center;
      background:var(--surface-tint);color:var(--primary);
      flex:none;transition:.2s ease;
    }
    .faq-answer{
      display:none;
      padding:0 24px 22px;
      color:var(--muted);
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
    .cta{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      padding:48px;
      background:
        linear-gradient(135deg,rgba(109,93,252,.92),rgba(19,184,166,.82)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      color:#fff;
      box-shadow:0 30px 80px rgba(79,70,229,.25);
    }
    .cta:after{
      content:"";
      position:absolute;right:-80px;bottom:-120px;
      width:340px;height:340px;border-radius:50%;
      background:rgba(255,255,255,.14);
    }
    .cta-inner{
      position:relative;z-index:1;
      display:grid;
      grid-template-columns:1fr auto;
      gap:26px;
      align-items:center;
    }
    .cta h2{margin:0;font-size:36px;line-height:1.16;letter-spacing:-.04em}
    .cta p{margin:12px 0 0;color:rgba(255,255,255,.82);max-width:760px}
    .contact-box{
      margin-top:28px;
      display:flex;gap:12px;
      max-width:620px;
    }
    .contact-box input{
      flex:1;min-width:0;
      border:1px solid rgba(255,255,255,.26);
      background:rgba(255,255,255,.14);
      color:#fff;
      border-radius:999px;
      padding:14px 18px;
      outline:none;
    }
    .contact-box input::placeholder{color:rgba(255,255,255,.7)}
    .contact-box button{
      white-space:nowrap;
      border-radius:999px;
      padding:14px 22px;
      background:#fff;
      color:var(--primary);
      font-weight:950;
      box-shadow:0 14px 30px rgba(0,0,0,.12);
    }
    .contact-box button:hover{transform:translateY(-2px)}
    .site-footer{
      margin-top:88px;
      background:#0b1020;
      color:rgba(255,255,255,.72);
      border-top:1px solid var(--border-dark);
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      padding:56px 0 36px;
    }
    .footer-brand{
      display:flex;align-items:center;gap:12px;
      color:#fff;font-weight:950;font-size:20px;margin-bottom:14px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-desc{margin:0;max-width:560px;color:rgba(255,255,255,.66)}
    .footer-title{color:#fff;font-weight:950;margin:0 0 14px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.68);transition:.2s ease}
    .footer-links a:hover{color:#fff}
    .footer-bottom{
      border-top:1px solid var(--border-dark);
      padding:20px 0;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      color:rgba(255,255,255,.55);
      font-size:14px;
    }
    .warning-text{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(239,68,68,.12);
      color:#ffd6d6;
      border:1px solid rgba(239,68,68,.28);
      font-weight:800;
    }
    @media (max-width:1024px){
      .hero{min-height:auto}
      .hero-grid{grid-template-columns:1fr;gap:30px;padding:60px 0}
      .hero-panel{max-width:760px}
      .grid-4{grid-template-columns:repeat(2,1fr)}
      .grid-3,.article-grid{grid-template-columns:repeat(2,1fr)}
      .image-split,.faq-wrap,.notice-band{grid-template-columns:1fr}
      .section{padding:72px 0}
      .footer-main{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav{min-height:68px}
      .brand-text{max-width:220px;font-size:16px}
      .menu-toggle{display:flex}
      .nav-links{
        position:absolute;left:14px;right:14px;top:76px;
        display:none;
        flex-direction:column;align-items:stretch;
        border-radius:22px;
        padding:10px;
      }
      .nav-links.open{display:flex}
      .nav-link{text-align:center}
      .nav-actions .age-pill{display:none}
      h1{font-size:clamp(36px,12vw,54px)}
      .hero-subtitle{font-size:17px}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
      .section-head{display:block}
      .grid-3,.grid-4,.article-grid{grid-template-columns:1fr}
      .notice-band,.cta{padding:28px}
      .media-card,.media-card img{min-height:320px}
      .cta-inner{grid-template-columns:1fr}
      .contact-box{flex-direction:column}
      .contact-box button{width:100%}
      .footer-main{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      .hero-panel{padding:18px;border-radius:24px}
      .hero-panel-top{display:block}
      .safe-badge{margin-top:12px}
      .section{padding:58px 0}
      .feature-card{padding:22px}
      .step-item{grid-template-columns:1fr}
      .faq-question{padding:18px}
      .faq-answer{padding:0 18px 18px}
      .cta h2{font-size:28px}
      .footer-brand{align-items:flex-start}
    }

/* roulang page: article */
:root{
      --bg:#0b1020;
      --bg-soft:#11182d;
      --surface:#ffffff;
      --surface-soft:#f6f8fc;
      --surface-tint:#eef4ff;
      --text:#172033;
      --muted:#667085;
      --muted-2:#98a2b3;
      --primary:#6d5dfc;
      --primary-dark:#5142de;
      --secondary:#13b8a6;
      --accent:#ffb020;
      --danger:#ef4444;
      --border:#e5eaf3;
      --border-dark:rgba(255,255,255,.16);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 18px 50px rgba(20,31,56,.12);
      --shadow-hover:0 22px 70px rgba(20,31,56,.18);
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:linear-gradient(180deg,#f7f9ff 0%,#ffffff 34%,#f7f9ff 100%);
      line-height:1.7;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    p{margin:0}
    .container{width:min(100% - 40px,var(--container));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(229,234,243,.78);
    }
    .nav{
      min-height:76px;
      display:flex;align-items:center;justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;
      font-weight:900;letter-spacing:-.02em;
      color:#111827;
      min-width:0;
    }
    .brand:hover{color:#111827}
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      display:grid;place-items:center;
      color:#fff;font-weight:900;
      box-shadow:0 12px 28px rgba(109,93,252,.28);
      flex:none;
    }
    .brand-text{
      display:block;
      font-size:18px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:310px;
    }
    .nav-links{
      display:flex;align-items:center;gap:8px;
      padding:6px;border:1px solid var(--border);
      border-radius:999px;background:#fff;
      box-shadow:0 8px 24px rgba(18,28,45,.04);
    }
    .nav-link{
      padding:10px 18px;
      border-radius:999px;
      color:#475467;
      font-weight:700;
      transition:.22s ease;
    }
    .nav-link:hover{color:var(--primary);background:rgba(109,93,252,.08)}
    .nav-link.active{color:#fff;background:var(--primary);box-shadow:0 10px 22px rgba(109,93,252,.26)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .age-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:10px 14px;border-radius:999px;
      background:#fff7e6;color:#8a5700;
      border:1px solid #ffe1a3;
      font-weight:800;font-size:14px;
      white-space:nowrap;
    }
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:#fff;border:1px solid var(--border);
      color:var(--text);
      align-items:center;justify-content:center;
      transition:.2s ease;
    }
    .menu-toggle:hover{border-color:rgba(109,93,252,.45);color:var(--primary)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:10px;
      min-height:50px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:900;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      user-select:none;
    }
    .btn:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{
      outline:3px solid rgba(109,93,252,.35);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#8b7dff);
      box-shadow:0 18px 34px rgba(109,93,252,.34);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 46px rgba(109,93,252,.42);color:#fff}
    .btn-light{
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(109,93,252,.12);
      box-shadow:0 14px 26px rgba(18,28,45,.08);
    }
    .btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(18,28,45,.12);color:var(--primary)}
    .article-hero{
      position:relative;
      isolation:isolate;
      padding:88px 0 70px;
      color:#fff;
      background:
        linear-gradient(90deg,rgba(10,15,32,.94) 0%,rgba(10,15,32,.82) 54%,rgba(10,15,32,.48) 100%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      overflow:hidden;
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:420px;height:420px;right:-120px;top:-140px;
      background:radial-gradient(circle,rgba(19,184,166,.36),transparent 68%);
      z-index:-1;
    }
    .breadcrumb{
      display:flex;flex-wrap:wrap;gap:10px;align-items:center;
      margin:0 0 20px;
      color:rgba(255,255,255,.74);
      font-size:14px;
      font-weight:700;
    }
    .breadcrumb a{color:#fff}
    .breadcrumb a:hover{color:#dfe7ff}
    .breadcrumb-sep{opacity:.55}
    .article-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:44px;
      align-items:end;
    }
    .article-kicker{
      display:inline-flex;align-items:center;gap:10px;
      padding:8px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);
      color:#eef4ff;
      font-weight:800;
      margin-bottom:18px;
    }
    .article-kicker:before{
      content:"";
      width:9px;height:9px;border-radius:50%;
      background:var(--secondary);
      box-shadow:0 0 0 7px rgba(19,184,166,.16);
    }
    h1{
      margin:0;
      max-width:860px;
      font-size:clamp(34px,5vw,60px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:950;
    }
    .article-summary{
      margin-top:22px;
      max-width:820px;
      color:rgba(255,255,255,.82);
      font-size:18px;
      line-height:1.9;
    }
    .meta-row{
      display:flex;flex-wrap:wrap;gap:10px;
      margin-top:26px;
    }
    .meta-chip{
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 13px;
      border-radius:999px;
      color:rgba(255,255,255,.88);
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.16);
      font-weight:750;
      font-size:14px;
    }
    .hero-cover-card{
      border-radius:var(--radius-lg);
      overflow:hidden;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      box-shadow:0 30px 80px rgba(0,0,0,.24);
      backdrop-filter:blur(20px);
    }
    .hero-cover-card img{
      width:100%;
      height:240px;
      object-fit:cover;
    }
    .cover-note{
      padding:18px;
    }
    .cover-note strong{
      display:block;
      color:#fff;
      font-size:18px;
      margin-bottom:6px;
    }
    .cover-note span{
      color:rgba(255,255,255,.74);
      font-size:14px;
    }
    main{position:relative}
    .section{padding:72px 0}
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,790px) minmax(280px,1fr);
      gap:34px;
      align-items:start;
    }
    .article-card,.side-card,.info-card,.faq-card,.cta-panel{
      background:var(--surface);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
    }
    .article-card{
      padding:42px;
      overflow:hidden;
    }
    .article-content{
      color:#243047;
      font-size:18px;
      line-height:2;
    }
    .article-content h2,.article-content h3,.article-content h4{
      color:#101828;
      letter-spacing:-.02em;
      line-height:1.35;
      margin:34px 0 16px;
      font-weight:900;
    }
    .article-content h2{font-size:30px}
    .article-content h3{font-size:24px}
    .article-content h4{font-size:20px}
    .article-content p{margin:0 0 18px}
    .article-content a{
      color:var(--primary);
      font-weight:800;
      border-bottom:1px solid rgba(109,93,252,.28);
    }
    .article-content a:hover{color:var(--primary-dark);border-color:var(--primary-dark)}
    .article-content ul,.article-content ol{
      margin:18px 0 22px;
      padding-left:24px;
    }
    .article-content li{margin:8px 0}
    .article-content blockquote{
      margin:28px 0;
      padding:22px 24px;
      border-left:5px solid var(--primary);
      background:var(--surface-tint);
      border-radius:0 var(--radius) var(--radius) 0;
      color:#344054;
      font-weight:700;
    }
    .article-content img{
      border-radius:var(--radius);
      margin:28px 0;
      box-shadow:0 16px 40px rgba(20,31,56,.12);
    }
    .not-found{
      text-align:center;
      padding:40px 20px;
    }
    .not-found h2{
      margin:0 0 12px;
      font-size:32px;
      font-weight:950;
      color:#101828;
    }
    .not-found p{
      color:var(--muted);
      margin-bottom:24px;
    }
    .sidebar{
      position:sticky;
      top:100px;
      display:grid;
      gap:18px;
    }
    .side-card{padding:24px}
    .side-title{
      display:flex;align-items:center;gap:10px;
      margin:0 0 14px;
      font-size:18px;
      font-weight:950;
      color:#101828;
    }
    .side-title:before{
      content:"";
      width:10px;height:10px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 7px rgba(109,93,252,.12);
    }
    .safe-list{
      list-style:none;
      padding:0;margin:0;
      display:grid;gap:12px;
    }
    .safe-list li{
      display:flex;gap:10px;align-items:flex-start;
      padding:12px;
      border-radius:var(--radius-sm);
      background:var(--surface-soft);
      color:#475467;
      font-weight:650;
    }
    .check{
      width:22px;height:22px;flex:none;
      border-radius:8px;
      display:grid;place-items:center;
      background:rgba(19,184,166,.12);
      color:#079180;
      font-weight:950;
      line-height:1;
    }
    .warning-box{
      border:1px solid #ffe1a3;
      background:#fff7e6;
      color:#8a5700;
      border-radius:var(--radius);
      padding:18px;
      font-weight:750;
    }
    .share-box{
      display:grid;gap:10px;
    }
    .share-link{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      padding:13px 14px;
      border-radius:var(--radius-sm);
      border:1px solid var(--border);
      color:#344054;
      font-weight:800;
      transition:.22s ease;
      background:#fff;
    }
    .share-link:hover{
      border-color:rgba(109,93,252,.32);
      color:var(--primary);
      transform:translateY(-2px);
      box-shadow:0 12px 26px rgba(18,28,45,.08);
    }
    .section-head{
      max-width:760px;
      margin-bottom:28px;
    }
    .section-label{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(109,93,252,.1);
      color:var(--primary);
      font-weight:900;
      margin-bottom:14px;
    }
    .section-title{
      margin:0;
      font-size:clamp(28px,3vw,42px);
      line-height:1.2;
      letter-spacing:-.035em;
      font-weight:950;
      color:#101828;
    }
    .section-desc{
      margin-top:14px;
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .info-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }
    .info-card{
      padding:26px;
      transition:.22s ease;
    }
    .info-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(109,93,252,.24);
    }
    .info-icon{
      width:48px;height:48px;border-radius:16px;
      display:grid;place-items:center;
      margin-bottom:18px;
      color:#fff;
      font-weight:950;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 26px rgba(109,93,252,.22);
    }
    .info-card h3{
      margin:0 0 10px;
      font-size:20px;
      font-weight:950;
      color:#101828;
    }
    .info-card p{color:var(--muted);line-height:1.8}
    .faq-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:28px;
      align-items:start;
    }
    .faq-card{padding:12px}
    .faq-item{
      border-bottom:1px solid var(--border);
      padding:18px;
    }
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      margin:0 0 8px;
      font-size:18px;
      font-weight:950;
      color:#101828;
    }
    .faq-answer{
      color:var(--muted);
      line-height:1.85;
    }
    .cta-section{padding:74px 0 86px}
    .cta-panel{
      position:relative;
      overflow:hidden;
      padding:42px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(17,24,45,.96),rgba(81,66,222,.9)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      border-color:rgba(255,255,255,.14);
    }
    .cta-panel:after{
      content:"";
      position:absolute;
      width:260px;height:260px;right:-60px;bottom:-80px;
      background:radial-gradient(circle,rgba(255,176,32,.36),transparent 68%);
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:flex;align-items:center;justify-content:space-between;
      gap:28px;
    }
    .cta-panel h2{
      margin:0 0 12px;
      font-size:clamp(26px,3vw,40px);
      line-height:1.2;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .cta-panel p{
      color:rgba(255,255,255,.78);
      max-width:680px;
      font-size:17px;
    }
    .site-footer{
      background:#080d1b;
      color:#d0d5dd;
      padding:58px 0 26px;
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.4fr .7fr .9fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;align-items:center;gap:12px;
      color:#fff;
      font-weight:950;
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-desc{
      color:#98a2b3;
      max-width:520px;
      line-height:1.9;
    }
    .footer-title{
      margin:0 0 14px;
      color:#fff;
      font-weight:900;
    }
    .footer-links{
      list-style:none;
      margin:0;padding:0;
      display:grid;gap:10px;
      color:#98a2b3;
    }
    .footer-links a{transition:.2s ease}
    .footer-links a:hover{color:#fff}
    .warning-text{color:#ffcf7a;font-weight:900}
    .footer-bottom{
      display:flex;align-items:center;justify-content:space-between;
      gap:18px;
      padding-top:22px;
      color:#98a2b3;
      font-size:14px;
    }
    @media (max-width:1024px){
      .article-hero-grid,.article-layout,.faq-wrap{
        grid-template-columns:1fr;
      }
      .hero-cover-card{max-width:520px}
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .info-grid{grid-template-columns:repeat(2,1fr)}
      .footer-main{grid-template-columns:1fr 1fr}
      .cta-content{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav{min-height:68px}
      .brand-text{max-width:210px;font-size:16px}
      .age-pill{display:none}
      .menu-toggle{display:flex}
      .nav-links{
        position:absolute;
        left:14px;right:14px;top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
        box-shadow:0 20px 60px rgba(20,31,56,.18);
      }
      .nav-links.is-open{display:flex}
      .nav-link{text-align:center}
      .article-hero{padding:58px 0 52px}
      .article-summary{font-size:16px}
      .hero-cover-card img{height:210px}
      .section{padding:54px 0}
      .article-card{padding:28px}
      .article-content{font-size:16px;line-height:1.9}
      .article-content h2{font-size:25px}
      .article-content h3{font-size:21px}
      .sidebar,.info-grid{grid-template-columns:1fr}
      .faq-item{padding:16px}
      .cta-panel{padding:30px}
      .footer-main{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      .container{width:min(100% - 22px,var(--container))}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text{max-width:170px}
      h1{font-size:32px}
      .meta-chip{width:100%;justify-content:center}
      .article-card{padding:22px;border-radius:24px}
      .article-content blockquote{padding:18px}
      .btn{width:100%}
      .cover-note{padding:16px}
      .section-title{font-size:28px}
      .cta-panel{border-radius:24px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}