/* roulang page: index */
:root{
      --bg:#f4f8f7;
      --surface:#ffffff;
      --surface-2:#eef6f4;
      --primary:#0f6b62;
      --primary-dark:#0a4f49;
      --primary-soft:#dff1ee;
      --accent:#f0a63a;
      --accent-soft:#fff2dc;
      --text:#142321;
      --muted:#5f716e;
      --light:#8da09c;
      --border:#d8e5e2;
      --danger:#b5473f;
      --danger-soft:#fff0ee;
      --radius-sm:10px;
      --radius:18px;
      --radius-lg:28px;
      --shadow:0 18px 45px rgba(20,35,33,.08);
      --shadow-hover:0 22px 55px rgba(20,35,33,.13);
      --container:1180px;
      --focus:0 0 0 4px rgba(15,107,98,.18);
      --transition:.22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 2%, rgba(15,107,98,.10), transparent 32%),
        linear-gradient(180deg,#f8fbfa 0%,var(--bg) 48%,#ffffff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:var(--primary-soft);color:var(--primary-dark)}
    .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;padding:10px 14px;border-radius:10px;
      background:var(--primary);color:#fff;z-index:9999;
    }

    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(255,255,255,.88);
      backdrop-filter:saturate(170%) blur(16px);
      border-bottom:1px solid rgba(216,229,226,.85);
    }
    .nav-wrap{
      display:flex;align-items:center;justify-content:space-between;
      min-height:76px;gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;
      font-weight:800;color:var(--primary-dark);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),#2c8f83);
      color:#fff;box-shadow:0 10px 22px rgba(15,107,98,.22);
      flex:none;
    }
    .brand-mark svg{width:22px;height:22px}
    .brand-text{
      display:flex;flex-direction:column;line-height:1.2;
    }
    .brand-text strong{
      font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:360px;
    }
    .brand-text span{font-size:12px;color:var(--muted);font-weight:600;margin-top:3px}
    .main-nav{
      display:flex;align-items:center;gap:6px;
    }
    .main-nav a{
      padding:10px 14px;border-radius:999px;
      color:#30413e;font-weight:700;font-size:15px;
      transition:background var(--transition),color var(--transition),transform var(--transition);
    }
    .main-nav a:hover,.main-nav a.active{
      background:var(--primary-soft);color:var(--primary-dark);
    }
    .main-nav a:active{transform:scale(.98)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:var(--surface-2);color:var(--primary-dark);
      align-items:center;justify-content:center;
    }
    .menu-toggle:focus-visible,.btn:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:none;box-shadow:var(--focus);
    }

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:12px 20px;border-radius:999px;
      font-weight:800;letter-spacing:.01em;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--primary);color:#fff;box-shadow:0 13px 28px rgba(15,107,98,.20);
    }
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 18px 35px rgba(15,107,98,.26)}
    .btn-secondary{
      background:#fff;color:var(--primary-dark);border:1px solid var(--border);
    }
    .btn-secondary:hover{border-color:var(--primary);background:var(--primary-soft);transform:translateY(-2px)}
    .btn-soft{
      background:var(--accent-soft);color:#805115;border:1px solid rgba(240,166,58,.28);
    }
    .btn-soft:hover{background:#ffe8bf;transform:translateY(-2px)}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:6px 10px;border-radius:999px;
      background:var(--primary-soft);color:var(--primary-dark);
      font-size:13px;font-weight:800;
    }
    .badge.warn{background:var(--accent-soft);color:#865714}
    .badge.danger{background:var(--danger-soft);color:var(--danger)}
    .section{padding:86px 0}
    .section-tight{padding:60px 0}
    .section-head{
      display:flex;justify-content:space-between;align-items:flex-end;gap:28px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:var(--primary);font-weight:900;font-size:14px;letter-spacing:.08em;margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,4vw,42px);line-height:1.22;letter-spacing:-.04em;
      color:var(--text);
    }
    .section-desc{color:var(--muted);max-width:680px;margin-top:12px;font-size:16px}

    .hero{
      position:relative;overflow:hidden;
      padding:78px 0 58px;
      background:
        linear-gradient(90deg,rgba(244,248,247,.96) 0%,rgba(244,248,247,.82) 48%,rgba(244,248,247,.92) 100%),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      border-bottom:1px solid var(--border);
    }
    .hero:before{
      content:"";position:absolute;inset:auto -110px -210px auto;
      width:420px;height:420px;border-radius:50%;
      background:rgba(240,166,58,.16);filter:blur(6px);
    }
    .hero-grid{
      position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:46px;align-items:center;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(255,255,255,.72);border:1px solid var(--border);
      color:var(--primary-dark);font-weight:900;font-size:14px;
      box-shadow:0 8px 22px rgba(20,35,33,.05);
    }
    h1{
      margin-top:18px;
      font-size:clamp(34px,5.2vw,62px);
      line-height:1.08;letter-spacing:-.055em;
      color:#10211f;
    }
    .hero-lead{
      margin-top:22px;font-size:18px;color:#41524f;max-width:760px;
      line-height:1.9;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
    .hero-note{
      margin-top:22px;display:flex;gap:12px;align-items:flex-start;
      color:var(--muted);font-size:14px;max-width:720px;
    }
    .hero-note strong{color:var(--danger)}
    .hero-panel{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(216,229,226,.95);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(12px);
    }
    .panel-image{
      position:relative;border-radius:22px;overflow:hidden;min-height:220px;
      background:var(--primary-soft);
    }
    .panel-image img{width:100%;height:250px;object-fit:cover;filter:saturate(.88)}
    .panel-image:after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,transparent 30%,rgba(10,79,73,.78) 100%);
    }
    .panel-caption{
      position:absolute;left:18px;right:18px;bottom:16px;color:#fff;z-index:2;
    }
    .panel-caption strong{display:block;font-size:22px;line-height:1.25}
    .panel-caption span{display:block;margin-top:6px;color:rgba(255,255,255,.82);font-size:14px}
    .alert-list{margin-top:18px;display:grid;gap:12px}
    .alert-item{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px;border-radius:16px;background:#fbfdfc;border:1px solid var(--border);
    }
    .alert-icon{
      width:34px;height:34px;border-radius:12px;background:var(--accent-soft);
      display:grid;place-items:center;color:#8b5a13;flex:none;font-weight:900;
    }
    .alert-item b{display:block;color:var(--text);font-size:15px}
    .alert-item p{font-size:13px;color:var(--muted);margin-top:2px;line-height:1.6}

    .notice-bar{
      margin-top:-24px;position:relative;z-index:3;
    }
    .notice-inner{
      background:var(--surface);border:1px solid var(--border);border-radius:22px;
      box-shadow:var(--shadow);padding:18px 20px;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
    }
    .notice-inner p{color:var(--muted)}
    .notice-inner strong{color:var(--danger)}

    .cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .card{
      background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
      padding:22px;box-shadow:0 10px 28px rgba(20,35,33,.04);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#bfd4d0}
    .card-icon{
      width:48px;height:48px;border-radius:16px;
      display:grid;place-items:center;margin-bottom:18px;
      background:var(--primary-soft);color:var(--primary-dark);
      font-weight:900;font-size:20px;
    }
    .card:nth-child(2) .card-icon{background:var(--accent-soft);color:#875714}
    .card:nth-child(3) .card-icon{background:#e8eef9;color:#345781}
    .card:nth-child(4) .card-icon{background:var(--danger-soft);color:var(--danger)}
    .card h3{font-size:20px;line-height:1.35;margin-bottom:10px}
    .card p{color:var(--muted);font-size:15px}
    .card a{
      display:inline-flex;margin-top:16px;color:var(--primary-dark);font-weight:900;
      border-bottom:2px solid transparent;
    }
    .card a:hover{border-color:var(--primary)}

    .check-section{
      background:linear-gradient(180deg,#ffffff 0%,#f3faf8 100%);
      border-top:1px solid var(--border);border-bottom:1px solid var(--border);
    }
    .check-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:34px;align-items:center}
    .visual-card{
      border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);
      background:#fff;box-shadow:var(--shadow);
    }
    .visual-card img{width:100%;height:390px;object-fit:cover}
    .visual-card .visual-text{padding:20px}
    .visual-text h3{font-size:22px;margin-bottom:8px}
    .visual-text p{color:var(--muted)}
    .steps{display:grid;gap:14px}
    .step{
      display:grid;grid-template-columns:44px 1fr;gap:14px;
      padding:18px;border-radius:18px;background:#fff;border:1px solid var(--border);
      transition:border-color var(--transition),transform var(--transition),box-shadow var(--transition);
    }
    .step:hover{border-color:#b9d2cd;transform:translateX(3px);box-shadow:0 12px 26px rgba(20,35,33,.06)}
    .step-num{
      width:44px;height:44px;border-radius:14px;background:var(--primary);color:#fff;
      display:grid;place-items:center;font-weight:900;
      font-variant-numeric:tabular-nums;
    }
    .step h3{font-size:18px;margin-bottom:4px}
    .step p{color:var(--muted);font-size:15px}

    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:stretch;
    }
    .commit-box{
      background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
      padding:30px;box-shadow:var(--shadow);
    }
    .commit-box h2{font-size:32px;line-height:1.25;letter-spacing:-.03em;margin:12px 0}
    .commit-box p{color:var(--muted)}
    .commit-list{margin-top:22px;display:grid;gap:12px}
    .commit-list li{
      list-style:none;display:flex;gap:10px;align-items:flex-start;
      color:#354845;
    }
    .commit-list li:before{
      content:"✓";width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;flex:none;
      background:var(--primary-soft);color:var(--primary);font-weight:900;font-size:13px;margin-top:2px;
    }
    .support-panel{
      position:relative;overflow:hidden;
      border-radius:var(--radius-lg);padding:30px;
      color:#fff;background:
        linear-gradient(135deg,rgba(10,79,73,.93),rgba(15,107,98,.84)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .support-panel h3{font-size:28px;line-height:1.28;margin-bottom:14px}
    .support-panel p{color:rgba(255,255,255,.84)}
    .support-list{margin-top:26px;display:grid;gap:12px}
    .support-list div{
      padding:14px 16px;border-radius:16px;
      background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
    }
    .support-list b{display:block;margin-bottom:3px}
    .support-list span{color:rgba(255,255,255,.76);font-size:14px}

    .evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .evidence-card{
      background:#fff;border:1px solid var(--border);border-radius:var(--radius);
      overflow:hidden;box-shadow:0 10px 28px rgba(20,35,33,.04);
    }
    .evidence-card img{width:100%;height:168px;object-fit:cover}
    .evidence-card div{padding:20px}
    .evidence-card h3{font-size:20px;margin-bottom:8px}
    .evidence-card p{color:var(--muted);font-size:15px}
    .metric-row{
      margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
    }
    .metric{
      background:var(--surface-2);border:1px solid var(--border);
      border-radius:18px;padding:18px;text-align:center;
    }
    .metric strong{
      display:block;font-size:30px;color:var(--primary-dark);
      font-variant-numeric:tabular-nums;line-height:1.1;
    }
    .metric span{display:block;color:var(--muted);font-size:14px;margin-top:6px}

    .updates{
      background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
    }
    .post-list{display:grid;gap:14px}
    .post-card{
      display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;
      padding:20px;border-radius:18px;border:1px solid var(--border);
      background:linear-gradient(180deg,#fff,#fbfdfc);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bdd3cf}
    .post-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
    .post-date{color:var(--light);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
    .post-card h3{font-size:20px;line-height:1.35;margin-bottom:6px}
    .post-card p{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .post-link{
      color:var(--primary-dark);font-weight:900;border:1px solid var(--border);
      padding:10px 14px;border-radius:999px;background:#fff;white-space:nowrap;
    }
    .post-card:hover .post-link{background:var(--primary);color:#fff;border-color:var(--primary)}
    .empty-state{
      padding:34px;border:1px dashed #b7cbc7;border-radius:20px;
      background:var(--surface-2);color:var(--muted);text-align:center;font-weight:700;
    }

    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px}
    .faq-aside{
      background:var(--primary-dark);color:#fff;border-radius:var(--radius-lg);
      padding:28px;align-self:start;position:sticky;top:100px;
    }
    .faq-aside h2{font-size:30px;line-height:1.25;margin-bottom:12px}
    .faq-aside p{color:rgba(255,255,255,.78)}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;
      box-shadow:0 8px 22px rgba(20,35,33,.035);
    }
    .faq-question{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
      padding:18px 20px;background:#fff;color:var(--text);text-align:left;font-weight:900;
      transition:background var(--transition);
    }
    .faq-question:hover{background:#f7fbfa}
    .faq-question span:last-child{
      width:28px;height:28px;border-radius:50%;background:var(--primary-soft);
      display:grid;place-items:center;color:var(--primary-dark);flex:none;
      transition:transform var(--transition);
    }
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 20px 20px;color:var(--muted)}
    .faq-item.open .faq-answer{display:block}

    .cta{
      padding:78px 0;
    }
    .cta-box{
      position:relative;overflow:hidden;
      border-radius:34px;padding:42px;
      background:
        linear-gradient(120deg,rgba(15,107,98,.94),rgba(11,86,79,.92)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      color:#fff;box-shadow:0 24px 60px rgba(15,107,98,.23);
      display:grid;grid-template-columns:1fr .85fr;gap:34px;align-items:center;
    }
    .cta-box:after{
      content:"";position:absolute;width:280px;height:280px;border-radius:50%;
      right:-80px;top:-120px;background:rgba(255,255,255,.12);
    }
    .cta-content{position:relative;z-index:1}
    .cta-content h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin-bottom:14px}
    .cta-content p{color:rgba(255,255,255,.82);max-width:720px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .cta .btn-secondary{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.28)}
    .cta .btn-secondary:hover{background:rgba(255,255,255,.20)}
    .contact-form{
      position:relative;z-index:1;
      background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.20);
      border-radius:24px;padding:20px;backdrop-filter:blur(8px);
    }
    .form-row{display:grid;gap:12px;margin-bottom:12px}
    .contact-form label{font-weight:800;font-size:14px;color:#fff}
    .contact-form input,.contact-form textarea{
      width:100%;border:1px solid rgba(255,255,255,.26);
      background:rgba(255,255,255,.92);color:var(--text);
      border-radius:14px;padding:12px 14px;outline:none;
      transition:box-shadow var(--transition),border-color var(--transition);
    }
    .contact-form textarea{min-height:104px;resize:vertical}
    .contact-form input::placeholder,.contact-form textarea::placeholder{color:#7d908c}
    .form-help{font-size:12px;color:rgba(255,255,255,.72);margin-top:8px}

    .site-footer{
      background:#10211f;color:#d8e5e2;padding:46px 0 28px;
    }
    .footer-grid{
      display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:28px;
      padding-bottom:28px;border-bottom:1px solid rgba(216,229,226,.16);
    }
    .footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:14px}
    .footer-brand .brand-mark{box-shadow:none}
    .footer-brand strong{font-size:18px;color:#fff}
    .footer-grid p{color:#aabbb7;max-width:560px;font-size:14px}
    .footer-col h3{color:#fff;font-size:16px;margin-bottom:12px}
    .footer-col a,.footer-col span{
      display:block;color:#aabbb7;font-size:14px;margin:8px 0;
    }
    .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
    .copyright{
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      padding-top:22px;color:#8fa29e;font-size:13px;
    }

    @media (max-width:1024px){
      .hero-grid,.check-grid,.split,.faq-wrap,.cta-box{grid-template-columns:1fr}
      .cards-grid{grid-template-columns:repeat(2,1fr)}
      .evidence-grid{grid-template-columns:repeat(2,1fr)}
      .faq-aside{position:relative;top:auto}
      .hero{padding-top:58px}
      .brand-text strong{max-width:260px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-wrap{min-height:66px}
      .menu-toggle{display:flex}
      .main-nav{
        position:absolute;left:14px;right:14px;top:72px;
        display:none;flex-direction:column;align-items:stretch;
        background:#fff;border:1px solid var(--border);border-radius:18px;padding:10px;
        box-shadow:var(--shadow);
      }
      .main-nav.open{display:flex}
      .main-nav a{border-radius:12px}
      .nav-actions .btn{display:none}
      .brand-text strong{max-width:190px;font-size:14px}
      .brand-text span{display:none}
      .section{padding:62px 0}
      .section-head{display:block}
      .hero-grid{gap:28px}
      .hero-panel{padding:16px}
      .panel-image img{height:220px}
      .notice-inner{align-items:flex-start;flex-direction:column}
      .cards-grid,.evidence-grid,.metric-row{grid-template-columns:1fr}
      .post-card{grid-template-columns:1fr}
      .post-link{justify-self:start}
      .footer-grid{grid-template-columns:1fr}
      .cta-box{padding:28px;border-radius:26px}
    }
    @media (max-width:520px){
      h1{font-size:34px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .card,.commit-box{padding:20px}
      .step{grid-template-columns:1fr}
      .section-title{font-size:28px}
      .visual-card img{height:250px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#f4f8f7;
      --surface:#ffffff;
      --surface-2:#eef6f4;
      --primary:#0f6b62;
      --primary-dark:#0a4f49;
      --primary-soft:#dff1ee;
      --accent:#f0a63a;
      --accent-soft:#fff2dc;
      --text:#142321;
      --muted:#5f716e;
      --light:#8da09c;
      --border:#d8e5e2;
      --danger:#b5473f;
      --danger-soft:#fff0ee;
      --radius-sm:10px;
      --radius:18px;
      --radius-lg:28px;
      --shadow:0 18px 45px rgba(20,35,33,.08);
      --shadow-hover:0 22px 55px rgba(20,35,33,.13);
      --container:1180px;
      --focus:0 0 0 4px rgba(15,107,98,.18);
      --transition:.22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 2%, rgba(15,107,98,.10), transparent 32%),
        linear-gradient(180deg,#f8fbfa 0%,var(--bg) 48%,#ffffff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(255,255,255,.88);
      backdrop-filter:saturate(170%) blur(16px);
      border-bottom:1px solid rgba(216,229,226,.85);
    }
    .nav-wrap{
      display:flex;align-items:center;justify-content:space-between;
      min-height:76px;gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;
      font-weight:800;color:var(--primary-dark);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),#2c8f83);
      color:#fff;box-shadow:0 10px 22px rgba(15,107,98,.22);
      flex:none;
    }
    .brand-mark svg{width:22px;height:22px}
    .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-text strong{
      font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:360px;
    }
    .brand-text span{font-size:12px;color:var(--muted);font-weight:600;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{
      padding:10px 14px;border-radius:999px;
      color:#30413e;font-weight:700;font-size:15px;
      transition:background var(--transition),color var(--transition),transform var(--transition);
    }
    .main-nav a:hover,.main-nav a.active{
      background:var(--primary-soft);color:var(--primary-dark);
    }
    .main-nav a:active{transform:scale(.98)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      background:var(--surface-2);color:var(--primary-dark);
      align-items:center;justify-content:center;
    }
    .menu-toggle:focus-visible,.btn:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:none;box-shadow:var(--focus);
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:12px 20px;border-radius:999px;
      font-weight:800;letter-spacing:.01em;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--primary);color:#fff;box-shadow:0 13px 28px rgba(15,107,98,.20);
    }
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 18px 35px rgba(15,107,98,.26);color:#fff}
    .btn-secondary{
      background:#fff;color:var(--primary-dark);border:1px solid var(--border);
    }
    .btn-secondary:hover{border-color:var(--primary);background:var(--primary-soft);transform:translateY(-2px);color:var(--primary-dark)}
    .btn-soft{
      background:var(--accent-soft);color:#805115;border:1px solid rgba(240,166,58,.28);
    }
    .btn-soft:hover{background:#ffe8bf;transform:translateY(-2px);color:#805115}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:6px 10px;border-radius:999px;
      background:var(--primary-soft);color:var(--primary-dark);
      font-size:13px;font-weight:800;
    }
    .badge.warn{background:var(--accent-soft);color:#865714}
    .badge.danger{background:var(--danger-soft);color:var(--danger)}
    .section{padding:78px 0}
    .section-tight{padding:56px 0}
    .section-head{
      display:flex;justify-content:space-between;align-items:flex-end;gap:28px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:var(--primary);font-weight:900;font-size:14px;letter-spacing:.08em;margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,4vw,42px);line-height:1.22;letter-spacing:-.04em;
      color:var(--text);margin:0;
    }
    .section-desc{color:var(--muted);max-width:680px;margin-top:12px;font-size:16px}
    .article-hero{
      position:relative;overflow:hidden;
      padding:54px 0 46px;
      background:
        linear-gradient(90deg,rgba(244,248,247,.97) 0%,rgba(244,248,247,.88) 54%,rgba(244,248,247,.96) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border-bottom:1px solid var(--border);
    }
    .article-hero:after{
      content:"";position:absolute;right:-120px;top:40px;width:330px;height:330px;border-radius:999px;
      background:rgba(240,166,58,.15);filter:blur(4px);
    }
    .breadcrumb{
      position:relative;z-index:1;
      display:flex;align-items:center;gap:9px;flex-wrap:wrap;
      color:var(--muted);font-size:14px;margin-bottom:24px;
    }
    .breadcrumb a{font-weight:800;color:var(--primary-dark)}
    .breadcrumb a:hover{text-decoration:underline;text-underline-offset:4px}
    .article-head-grid{
      position:relative;z-index:1;
      display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:38px;align-items:end;
    }
    .article-title{
      font-size:clamp(32px,5vw,56px);
      line-height:1.16;letter-spacing:-.055em;
      margin:16px 0 18px;color:var(--text);
    }
    .article-summary{
      max-width:820px;color:#40524f;font-size:17px;line-height:1.95;margin:0;
    }
    .article-meta{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px;
      color:var(--muted);font-size:14px;
    }
    .meta-dot{width:5px;height:5px;border-radius:50%;background:var(--light)}
    .head-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(216,229,226,.92);
      border-radius:var(--radius-lg);
      padding:18px;
      box-shadow:var(--shadow);
    }
    .head-card img{
      width:100%;height:190px;object-fit:cover;border-radius:20px;
      border:1px solid var(--border);
    }
    .head-card .tip{
      margin-top:15px;padding:14px;border-radius:16px;background:var(--danger-soft);
      color:#78302b;font-size:14px;font-weight:700;
    }
    .layout{
      display:grid;grid-template-columns:minmax(0,780px) 320px;gap:34px;align-items:start;
    }
    .article-card{
      background:var(--surface);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:42px;
      box-shadow:var(--shadow);
    }
    .article-content{
      color:#263936;font-size:17px;line-height:2;
      overflow-wrap:anywhere;
    }
    .article-content h2{
      font-size:30px;line-height:1.28;letter-spacing:-.035em;margin:42px 0 16px;color:var(--text);
      padding-top:8px;
    }
    .article-content h3{
      font-size:23px;line-height:1.35;margin:32px 0 12px;color:#173c38;
    }
    .article-content p{margin:0 0 20px}
    .article-content a{color:var(--primary-dark);font-weight:800;border-bottom:1px solid rgba(15,107,98,.25)}
    .article-content a:hover{border-bottom-color:var(--primary-dark)}
    .article-content ul,.article-content ol{padding-left:1.35em;margin:0 0 22px}
    .article-content li{margin:7px 0}
    .article-content blockquote{
      margin:28px 0;padding:20px 22px;border-left:5px solid var(--primary);
      background:var(--surface-2);border-radius:0 var(--radius) var(--radius) 0;color:#294743;
      font-weight:700;
    }
    .article-content img{
      border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 14px 34px rgba(20,35,33,.08);margin:28px auto;
    }
    .empty-state{
      text-align:center;padding:50px 20px;background:linear-gradient(180deg,#fff,var(--surface-2));
      border:1px dashed var(--border);border-radius:var(--radius);
    }
    .empty-state h2{font-size:28px;margin:0 0 12px}
    .empty-state p{color:var(--muted);margin-bottom:24px}
    .side-panel{
      position:sticky;top:98px;
      display:grid;gap:16px;
    }
    .side-card{
      background:var(--surface);
      border:1px solid var(--border);
      border-radius:var(--radius);
      padding:22px;
      box-shadow:0 14px 34px rgba(20,35,33,.06);
    }
    .side-card h2,.side-card h3{
      margin:0 0 12px;font-size:20px;letter-spacing:-.025em;color:var(--text);
    }
    .side-card p{margin:0;color:var(--muted);font-size:15px}
    .quick-list{display:grid;gap:10px;margin-top:14px}
    .quick-list a,.quick-list span{
      display:flex;align-items:flex-start;gap:10px;padding:12px;border-radius:14px;
      background:var(--surface-2);color:#294743;font-weight:750;font-size:14px;
      transition:background var(--transition),transform var(--transition);
    }
    .quick-list a:hover{background:var(--primary-soft);transform:translateX(3px)}
    .quick-list i{
      width:20px;height:20px;border-radius:999px;background:var(--primary);color:#fff;
      display:inline-grid;place-items:center;font-style:normal;font-size:12px;flex:none;margin-top:2px;
    }
    .notice-grid{
      display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;
    }
    .notice-card{
      background:#fff;border:1px solid var(--border);border-radius:var(--radius);
      padding:24px;box-shadow:0 14px 34px rgba(20,35,33,.06);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .notice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,107,98,.32)}
    .notice-icon{
      width:44px;height:44px;border-radius:16px;display:grid;place-items:center;
      background:var(--primary-soft);color:var(--primary-dark);font-weight:900;margin-bottom:14px;
    }
    .notice-card:nth-child(2) .notice-icon{background:var(--accent-soft);color:#835514}
    .notice-card:nth-child(3) .notice-icon{background:var(--danger-soft);color:var(--danger)}
    .notice-card h3{font-size:20px;margin:0 0 10px;letter-spacing:-.02em}
    .notice-card p{margin:0;color:var(--muted);font-size:15px}
    .related-wrap{
      background:linear-gradient(180deg,var(--surface-2),#fff);
      border-top:1px solid var(--border);border-bottom:1px solid var(--border);
    }
    .related-grid{
      display:grid;grid-template-columns:1.05fr .95fr;gap:22px;
    }
    .related-card{
      background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
      overflow:hidden;box-shadow:var(--shadow);
      display:grid;grid-template-columns:210px minmax(0,1fr);
      transition:transform var(--transition),box-shadow var(--transition);
    }
    .related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .related-card img{width:100%;height:100%;min-height:210px;object-fit:cover}
    .related-body{padding:24px}
    .related-body h3{font-size:22px;line-height:1.35;margin:12px 0 10px}
    .related-body p{color:var(--muted);margin:0 0 18px;font-size:15px}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border:1px solid var(--border);border-radius:var(--radius);
      background:#fff;overflow:hidden;box-shadow:0 10px 28px rgba(20,35,33,.05);
    }
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      background:#fff;color:var(--text);font-weight:900;text-align:left;
      padding:18px 20px;
    }
    .faq-question span:last-child{
      width:28px;height:28px;border-radius:999px;background:var(--primary-soft);
      color:var(--primary-dark);display:grid;place-items:center;flex:none;
      transition:transform var(--transition);
    }
    .faq-answer{display:none;padding:0 20px 20px;color:var(--muted)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .contact-cta{
      position:relative;overflow:hidden;border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(10,79,73,.96),rgba(15,107,98,.90)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      color:#fff;padding:44px;
      box-shadow:0 24px 60px rgba(10,79,73,.22);
    }
    .contact-cta:after{
      content:"";position:absolute;right:-80px;bottom:-120px;width:280px;height:280px;border-radius:50%;
      background:rgba(240,166,58,.22);
    }
    .cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
    .contact-cta h2{font-size:clamp(26px,4vw,40px);line-height:1.25;letter-spacing:-.04em;margin:0 0 12px}
    .contact-cta p{margin:0;color:rgba(255,255,255,.82);max-width:720px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .contact-cta .btn-secondary{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);color:#fff}
    .contact-cta .btn-secondary:hover{background:rgba(255,255,255,.20)}
    .site-footer{
      background:#102321;color:#d8e5e2;padding:54px 0 24px;
    }
    .footer-grid{
      display:grid;grid-template-columns:1.3fr .7fr 1fr;gap:34px;padding-bottom:34px;
      border-bottom:1px solid rgba(216,229,226,.16);
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .footer-brand strong{color:#fff;font-size:17px}
    .site-footer p{color:#a9bbb7;margin:0;max-width:560px}
    .footer-col{display:grid;gap:10px;align-content:start}
    .footer-col h3{font-size:16px;color:#fff;margin:0 0 4px}
    .footer-col a,.footer-col span{color:#a9bbb7;font-size:14px}
    .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
    .copyright{
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      color:#8da09c;font-size:13px;padding-top:22px;
    }
    @media (max-width:1024px){
      .article-head-grid,.layout,.related-grid{grid-template-columns:1fr}
      .head-card{max-width:560px}
      .side-panel{position:static;grid-template-columns:1fr 1fr}
      .notice-grid{grid-template-columns:1fr 1fr}
      .cta-inner{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-wrap{min-height:68px}
      .brand-text strong{max-width:220px}
      .nav-actions .btn{display:none}
      .menu-toggle{display:flex}
      .main-nav{
        position:absolute;left:14px;right:14px;top:72px;
        display:none;flex-direction:column;align-items:stretch;gap:8px;
        padding:14px;background:#fff;border:1px solid var(--border);
        border-radius:20px;box-shadow:var(--shadow);
      }
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .article-hero{padding:36px 0}
      .article-title{letter-spacing:-.04em}
      .article-card{padding:28px}
      .side-panel,.notice-grid{grid-template-columns:1fr}
      .related-card{grid-template-columns:1fr}
      .related-card img{height:210px}
      .section{padding:58px 0}
      .section-tight{padding:42px 0}
      .section-head{display:block}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text strong{max-width:180px;font-size:14px}
      .brand-text span{display:none}
      .breadcrumb{font-size:13px}
      .article-meta{align-items:flex-start}
      .article-card{padding:22px;border-radius:22px}
      .article-content{font-size:16px;line-height:1.9}
      .article-content h2{font-size:25px}
      .article-content h3{font-size:20px}
      .contact-cta{padding:28px}
      .cta-actions,.article-meta{flex-direction:column;align-items:stretch}
      .cta-actions .btn,.article-meta .badge{width:100%}
      .copyright{display:grid}
    }

/* 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}