/* roulang page: index */
:root{
    --primary:#12897A;
    --primary-dark:#0A5F55;
    --primary-soft:#E4F1EE;
    --accent:#F0733F;
    --accent-soft:#FDEDE4;
    --ink:#0B3A38;
    --text:#17211F;
    --text-2:#5C6B68;
    --paper:#F6F5F1;
    --card:#FFFFFF;
    --line:#E4E6E2;
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --shadow:0 1px 2px rgba(11,58,56,.06),0 14px 34px -14px rgba(11,58,56,.20);
    --shadow-hover:0 18px 40px -12px rgba(11,58,56,.28);
    --brand-gradient:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
    --btn-gradient:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--paper);
    font-variant-numeric:tabular-nums;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:640px){.container{padding:0 32px}}
  @media (min-width:1024px){.container{padding:0 40px}}
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  @media (min-width:1024px){.section{padding:112px 0}}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
  .section-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3}
  .section-head .sub{margin-top:8px;font-size:15px;color:var(--text-2);max-width:640px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--primary-soft);color:var(--primary-dark);font-size:13px;font-weight:700}
  .eyebrow i{width:6px;height:6px;border-radius:999px;background:var(--accent);display:block}

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:80;padding:14px 0;transition:padding .3s ease}
  .site-header.is-scrolled{padding:6px 0}
  .nav-panel{
    display:flex;align-items:center;gap:16px;
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow);
    padding:10px 12px;
    transition:box-shadow .3s ease;
  }
  .site-header.is-scrolled .nav-panel{box-shadow:var(--shadow-hover)}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:44px;height:44px;border-radius:999px;background:var(--brand-gradient);
    display:grid;place-items:center;color:#fff;flex-shrink:0;
  }
  .brand-mark svg{width:24px;height:24px}
  .brand-text strong{display:block;font-size:16px;font-weight:800;color:var(--ink);line-height:1.25;white-space:nowrap}
  .brand-text em{display:block;font-size:11px;font-style:normal;color:var(--text-2);line-height:1.4;white-space:nowrap}
  .nav-cards{display:flex;align-items:center;gap:8px;margin-left:auto}
  .nav-card{
    display:flex;align-items:center;gap:6px;padding:8px 12px;border-radius:var(--radius-sm);
    font-size:13px;font-weight:500;color:var(--text-2);background:#fff;border:1px solid transparent;
    transition:transform .25s ease,border-color .25s ease,color .25s ease,box-shadow .25s ease,background .25s ease;
    white-space:nowrap;
  }
  .nav-card svg{width:18px;height:18px;flex-shrink:0;stroke:currentColor}
  .nav-card:hover{border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
  .nav-card.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:700;border-color:rgba(18,137,122,.28)}
  .nav-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .nav-cta{flex-shrink:0}
  .nav-toggle{
    display:none;width:46px;height:46px;border-radius:var(--radius-sm);border:1px solid var(--line);
    background:#fff;cursor:pointer;place-items:center;margin-left:auto;
  }
  .nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative}
  .nav-toggle span::before,.nav-toggle span::after{content:'';position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px}
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .nav-mobile{display:none;margin-top:10px;background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:14px;gap:10px}
  .nav-mobile.open{display:grid;grid-template-columns:1fr 1fr}
  .nav-mobile a{display:flex;align-items:center;gap:8px;padding:12px;border-radius:var(--radius-sm);background:var(--paper);font-size:14px;min-height:44px}
  .nav-mobile a.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:700}
  .nav-mobile a svg{width:18px;height:18px;flex-shrink:0}
  .nav-mobile .mobile-cta{grid-column:span 2}
  @media (max-width:1023px){
    .nav-cards,.nav-cta{display:none}
    .nav-toggle{display:grid}
  }
  @media (max-width:480px){
    .nav-mobile.open{grid-template-columns:1fr}
    .nav-mobile .mobile-cta{grid-column:span 1}
    .brand-text strong{font-size:14px}
    .brand-text em{display:none}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
    transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
    white-space:nowrap;
  }
  .btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .btn-primary{background:var(--btn-gradient);color:#fff;box-shadow:0 12px 24px -14px rgba(10,95,85,.9)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(10,95,85,.85)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px -12px rgba(10,95,85,.9)}
  .btn-ghost{background:#fff;color:var(--primary-dark);border-color:var(--primary)}
  .btn-ghost:hover{background:var(--primary-soft);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);font-weight:700;font-size:14px}
  .btn-link svg{width:18px;height:18px;transition:transform .25s ease}
  .btn-link:hover svg{transform:translateX(3px)}
  .btn-block{width:100%}
  @media (min-width:640px){.btn-block{width:auto}}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;padding:48px 0 72px}
  .hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center right}
  .hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(246,245,241,.97) 0%,rgba(246,245,241,.94) 42%,rgba(228,241,238,.78) 74%,rgba(253,237,228,.62) 100%)}
  .hero-inner{position:relative;z-index:2;display:grid;gap:40px;align-items:center}
  @media (min-width:1024px){.hero-inner{grid-template-columns:1.06fr .94fr;gap:56px}}
  .hero h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin:18px 0 16px}
  .hero-sub{font-size:clamp(16px,1.6vw,19px);color:var(--text-2);max-width:520px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 22px}
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px}
  .pill{
    display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
    background:#fff;border:1px solid var(--line);box-shadow:0 1px 2px rgba(11,58,56,.05);
    font-size:13px;color:var(--text-2);transition:transform .25s ease,box-shadow .25s ease;
  }
  .pill:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
  .pill b{font-weight:800;color:var(--ink);font-size:15px}
  .pill svg{width:16px;height:16px;color:var(--primary)}
  .hero-visual{position:relative}
  .hero-frame{
    border-radius:var(--radius-lg);overflow:hidden;background:var(--primary-soft);
    border:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow-hover);aspect-ratio:4/3;
  }
  .hero-frame img{width:100%;height:100%;object-fit:cover}
  .hero-float{
    position:absolute;left:14px;bottom:18px;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-md);box-shadow:var(--shadow);padding:12px 16px;display:flex;align-items:center;gap:12px;
  }
  .hero-float .dot{width:34px;height:34px;border-radius:999px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent)}
  .hero-float .dot svg{width:18px;height:18px}
  .hero-float strong{display:block;font-size:15px;font-weight:800;color:var(--ink);line-height:1.3}
  .hero-float span{font-size:12px;color:var(--text-2)}
  @media (min-width:1024px){.hero-float{left:-22px;bottom:26px}}

  /* ---------- 指标看板 ---------- */
  .metric-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:640px){.metric-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr)}}
  .metric-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
    padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;
    transition:transform .28s ease,box-shadow .28s ease;
  }
  .metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .metric-icon{width:38px;height:38px;border-radius:12px;background:var(--primary-soft);display:grid;place-items:center;color:var(--primary-dark)}
  .metric-icon svg{width:20px;height:20px}
  .metric-num{font-size:clamp(28px,4vw,44px);font-weight:800;color:var(--ink);line-height:1;letter-spacing:-.02em}
  .metric-num small{font-size:14px;font-weight:700;color:var(--text-2);margin-left:4px;letter-spacing:0}
  .metric-card h3{font-size:15px;font-weight:700}
  .metric-card p{font-size:12px;color:var(--text-2);line-height:1.6}
  .trend{height:6px;border-radius:999px;background:var(--primary-soft);overflow:hidden}
  .trend i{display:block;height:100%;border-radius:999px;background:var(--brand-gradient)}

  /* ---------- 服务矩阵 ---------- */
  .bento{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:640px){.bento{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.bento{grid-template-columns:repeat(3,1fr)}}
  .service-card{
    position:relative;display:flex;flex-direction:column;gap:12px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:26px;box-shadow:var(--shadow);overflow:hidden;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .service-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,137,122,.35)}
  .service-card h3{font-size:19px;font-weight:700}
  .service-card p{font-size:14px;color:var(--text-2);line-height:1.7}
  .service-icon{width:44px;height:44px;border-radius:14px;background:var(--primary-soft);display:grid;place-items:center;color:var(--primary-dark)}
  .service-icon svg{width:22px;height:22px}
  .service-card.compact{padding:20px}
  .service-card.compact h3{font-size:16px}
  .service-card.compact p{font-size:13px}
  .service-card.feature{color:#fff;border-color:transparent;background:var(--ink)}
  .service-card.feature::before{
    content:'';position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(18,137,122,.92) 0%,rgba(10,95,85,.88) 52%,rgba(240,115,63,.72) 100%);
  }
  .service-card.feature > *{position:relative;z-index:2}
  .service-card.feature h3,.service-card.feature p{color:#fff}
  .service-card.feature p{color:rgba(255,255,255,.86)}
  .service-card.feature .service-icon{background:rgba(255,255,255,.2);color:#fff}
  .service-card.feature .btn-link{color:#fff}
  @media (min-width:1024px){
    .service-card.span-2{grid-column:span 2}
    .service-card.feature{min-height:280px;justify-content:flex-end}
  }
  .service-note{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
  .tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;background:var(--paper);border:1px solid var(--line);font-size:12px;color:var(--text-2)}
  .service-card.feature .tag{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.28);color:#fff}

  /* ---------- 结果对比 ---------- */
  .compare{display:grid;gap:20px;align-items:stretch}
  @media (min-width:900px){.compare{grid-template-columns:1fr 72px 1fr;align-items:center}}
  .compare-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column;gap:16px}
  .compare-card h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px}
  .compare-card h3 span{width:30px;height:30px;border-radius:999px;display:grid;place-items:center;font-size:13px;font-weight:800}
  .compare-card.old h3 span{background:var(--paper);color:var(--text-2);border:1px solid var(--line)}
  .compare-card.new{border-color:rgba(18,137,122,.35);box-shadow:0 1px 2px rgba(11,58,56,.06),0 22px 44px -18px rgba(18,137,122,.42)}
  .compare-card.new h3 span{background:var(--primary-soft);color:var(--primary-dark)}
  .diff-list li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--text-2);line-height:1.7}
  .diff-list li:last-child{border-bottom:none}
  .diff-list li svg{width:18px;height:18px;flex-shrink:0;margin-top:4px}
  .compare-card.old .diff-list li{color:#8A9491}
  .compare-card.new .diff-list li{color:var(--text);font-weight:500}
  .compare-card.new .diff-list li svg{color:var(--primary)}
  .compare-card.old .diff-list li svg{color:#BFC7C4}
  .vs-badge{
    width:64px;height:64px;border-radius:999px;background:var(--brand-gradient);color:#fff;
    display:grid;place-items:center;font-weight:800;font-size:18px;letter-spacing:.04em;
    box-shadow:var(--shadow);margin:6px auto;
  }

  /* ---------- 列表卡 ---------- */
  .post-grid{display:grid;gap:24px;grid-template-columns:1fr}
  @media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
  .post-card{
    display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);
    transition:transform .3s ease,box-shadow .3s ease;
  }
  .post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .post-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
  .post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
  .post-card:hover .post-cover img{transform:scale(1.03)}
  .post-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
  .post-tag{align-self:flex-start;padding:4px 12px;border-radius:999px;background:var(--accent-soft);color:#B24A1C;font-size:12px;font-weight:700}
  .post-body h3{font-size:17px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-body h3 a:hover{color:var(--primary-dark)}
  .post-body p{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2)}
  .post-meta svg{width:18px;height:18px;color:var(--primary)}
  .empty-card{
    grid-column:1/-1;background:var(--primary-soft);border:1px dashed rgba(18,137,122,.4);
    border-radius:var(--radius-lg);padding:44px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
  }
  .empty-card svg{width:40px;height:40px;color:var(--primary)}
  .empty-card p{color:var(--primary-dark);font-size:15px;font-weight:500}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;gap:14px}
  .faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);padding:2px 22px;transition:border-color .25s ease,box-shadow .25s ease}
  .faq-item:hover{border-color:rgba(18,137,122,.35)}
  .faq-item[open]{border-color:var(--primary);box-shadow:var(--shadow)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 0;font-weight:700;font-size:16px;color:var(--ink);min-height:44px;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{content:'+';color:var(--primary);font-size:22px;line-height:1;font-weight:700;transition:transform .25s ease}
  .faq-item[open] summary::after{content:'−'}
  .faq-item p{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--text-2);border-top:1px solid var(--line);padding-top:16px}

  /* ---------- 表单 ---------- */
  .form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow)}
  @media (min-width:768px){.form-card{padding:36px}}
  .form-grid{display:grid;gap:18px;grid-template-columns:1fr}
  @media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr;gap:20px}}
  .field{display:flex;flex-direction:column;gap:8px}
  .field.full{grid-column:1/-1}
  .field label{font-size:14px;font-weight:700;color:var(--ink)}
  .field input,.field select,.field textarea{
    width:100%;height:48px;border:1px solid var(--line);border-radius:var(--radius-sm);
    padding:0 14px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
  .field input::placeholder,.field textarea::placeholder{color:#9AA5A2}
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,137,122,.18)}
  .chip-group{display:flex;flex-wrap:wrap;gap:10px}
  .chip{
    padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;
    font-size:14px;cursor:pointer;transition:all .2s ease;min-height:44px;
  }
  .chip:hover{border-color:var(--primary);color:var(--primary-dark)}
  .chip.active{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);font-weight:700}
  .form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:22px}
  .form-foot small{font-size:13px;color:var(--text-2)}
  .form-success{
    display:none;background:var(--primary-soft);border:1px solid rgba(18,137,122,.35);
    border-radius:var(--radius-md);padding:28px;text-align:center;
  }
  .form-success.show{display:block}
  .form-success strong{display:block;font-size:19px;color:var(--primary-dark);margin-bottom:8px}
  .form-success p{font-size:14px;color:var(--text-2)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:20px}
  .footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand .brand-mark{width:40px;height:40px}
  .footer-brand strong{color:#fff;font-size:16px;font-weight:800}
  .site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68)}
  .site-footer h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 14px}
  .site-footer a{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color .2s ease,transform .2s ease}
  .site-footer a:hover{color:var(--accent)}
  .footer-links li{display:block}
  .footer-bottom{
    margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    html{scroll-behavior:auto}
  }

/* roulang page: article */
:root{
  --primary:#12897A;
  --primary-dark:#0A5F55;
  --primary-soft:#E4F1EE;
  --accent:#F0733F;
  --accent-soft:#FDEDE4;
  --ink:#0B3A38;
  --text:#17211F;
  --muted:#5C6B68;
  --paper:#F6F5F1;
  --card:#FFFFFF;
  --line:#E4E6E2;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow:0 1px 2px rgba(11,58,56,.06), 0 14px 34px -14px rgba(11,58,56,.20);
  --shadow-hover:0 18px 40px -12px rgba(11,58,56,.28);
  --grad:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
  --grad-btn:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input,select,textarea{font:inherit;}
::selection{background:var(--primary-soft);color:var(--primary-dark);}
body::-webkit-scrollbar{width:10px;}
body::-webkit-scrollbar-track{background:#EDEDE8;}
body::-webkit-scrollbar-thumb{background:#BFC9C6;border-radius:99px;}
body::-webkit-scrollbar-thumb:hover{background:var(--primary);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1280px){.container{padding:0 40px;}}

/* ---------- 顶部卡片化导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0 10px;
  transition:padding .28s ease;
}
.site-header.is-scrolled{padding:8px 0 6px;}
.nav-shell{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 14px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  transition:box-shadow .28s ease,border-radius .28s ease;
}
.site-header.is-scrolled .nav-shell{
  box-shadow:var(--shadow-hover);
  border-radius:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  min-height:44px;
}
.brand-mark{
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border-radius:14px;
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 22px -12px rgba(18,137,122,.75);
}
.brand-mark svg{width:23px;height:23px;}
.brand-text{
  font-size:16px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  white-space:nowrap;
}
.nav-cards{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  justify-content:center;
  flex-wrap:nowrap;
}
.nav-card{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:44px;
  padding:0 12px;
  border-radius:var(--r-sm);
  background:var(--paper);
  border:1px solid transparent;
  font-size:14px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease,color .22s ease;
}
.nav-card svg{width:18px;height:18px;stroke:var(--primary);flex:0 0 auto;transition:stroke .22s ease;}
.nav-card:hover{
  background:#fff;
  border-color:rgba(18,137,122,.55);
  transform:translateY(-2px);
  box-shadow:0 10px 22px -14px rgba(11,58,56,.42);
}
.nav-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.nav-card.active{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  box-shadow:0 12px 24px -14px rgba(18,137,122,.85);
}
.nav-card.active svg{stroke:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  padding:0 11px;
  flex-direction:column;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-cards{
    display:none;
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    padding:14px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow-hover);
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
    justify-content:stretch;
  }
  .nav-cards.is-open{display:grid;}
  .nav-card{justify-content:flex-start;background:var(--paper);}
}
@media (max-width:639px){
  .nav-actions .btn{display:none;}
  .brand-text{font-size:15px;}
  .nav-cards{grid-template-columns:1fr;}
}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn svg{width:18px;height:18px;}
.btn-primary{
  background:var(--grad-btn);
  color:#fff;
  box-shadow:0 14px 28px -16px rgba(18,137,122,.95);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  background:#fff;
  color:var(--primary-dark);
  border-color:rgba(18,137,122,.35);
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-3px);
  box-shadow:0 14px 28px -18px rgba(11,58,56,.5);
}
.btn-light{
  background:#fff;
  color:var(--primary-dark);
  border-color:transparent;
}
.btn-light:hover{transform:translateY(-3px);box-shadow:0 18px 34px -18px rgba(0,0,0,.45);}
.btn-line{
  background:rgba(255,255,255,.14);
  color:#fff;
  border-color:rgba(255,255,255,.5);
}
.btn-line:hover{background:rgba(255,255,255,.24);transform:translateY(-3px);}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.btn-sm{height:42px;padding:0 16px;font-size:14px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary-dark);
  font-size:14px;
  font-weight:700;
}
.text-link svg{width:16px;height:16px;transition:transform .22s ease;}
.text-link:hover{color:var(--accent);}
.text-link:hover svg{transform:translateX(3px);}
.text-link:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  margin-top:6px;
  padding:44px 0 56px;
  color:#fff;
  border-radius:0 0 32px 32px;
  background-image:
    linear-gradient(118deg,rgba(10,95,85,.95) 0%,rgba(18,137,122,.88) 46%,rgba(240,115,63,.74) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;
  right:-90px;
  bottom:-120px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24) 0%,rgba(255,255,255,0) 68%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.84);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{opacity:.6;}
.crumb-current{color:#fff;font-weight:600;}
.article-title{
  font-size:clamp(28px,3.9vw,46px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:940px;
  margin-bottom:20px;
  text-wrap:balance;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 14px;
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:34px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.34);
  font-size:13px;
  font-weight:700;
}
.meta-pill svg{width:15px;height:15px;}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:rgba(255,255,255,.88);
  font-variant-numeric:tabular-nums;
}
.meta-item svg{width:15px;height:15px;opacity:.9;}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:76px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-tight{padding:40px 0 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--muted);
  max-width:640px;
}

/* ---------- 正文卡 ---------- */
.article-shell{max-width:840px;margin:0 auto;}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:30px 22px;
}
@media (min-width:768px){.article-card{padding:44px 46px;}}
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  word-break:break-word;
  overflow-wrap:anywhere;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  padding-left:15px;
  margin:42px 0 16px;
  font-size:clamp(21px,2.2vw,26px);
  font-weight:800;
  line-height:1.4;
  color:var(--ink);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  bottom:.18em;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.article-body h3{
  margin:30px 0 12px;
  font-size:19px;
  font-weight:700;
  color:var(--ink);
}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:700;color:var(--ink);}
.article-body ul{margin:0 0 1.3em;padding-left:22px;}
.article-body ul li{position:relative;margin-bottom:10px;padding-left:4px;}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:-13px;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary);
}
.article-body ol{margin:0 0 1.3em;padding-left:22px;list-style:decimal;}
.article-body ol li{margin-bottom:10px;}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:4px solid var(--primary);
  background:var(--primary-soft);
  border-radius:20px;
  color:var(--primary-dark);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:18px;
  margin:26px auto;
  box-shadow:var(--shadow);
}
.article-body a{
  color:var(--primary-dark);
  border-bottom:1px solid rgba(18,137,122,.4);
  transition:color .2s ease,border-color .2s ease;
}
.article-body a:hover{color:var(--accent);border-color:var(--accent);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--muted);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14.5px;
  border-radius:14px;
  overflow:hidden;
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-weight:700;
}
.article-body code{
  background:var(--primary-soft);
  color:var(--primary-dark);
  padding:2px 7px;
  border-radius:8px;
  font-size:14px;
}
.article-body pre{
  background:var(--ink);
  color:#E7F5F2;
  padding:18px 20px;
  border-radius:18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0;}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;
  padding:38px 24px 44px;
}
.empty-icon{
  display:grid;
  place-items:center;
  width:66px;
  height:66px;
  margin:0 auto 18px;
  border-radius:20px;
  background:var(--primary-soft);
  color:var(--primary-dark);
}
.empty-icon svg{width:30px;height:30px;}
.empty-state h2{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:12px;}
.empty-state p{color:var(--muted);font-size:15px;max-width:520px;margin:0 auto 24px;}

/* ---------- 标签与分享 ---------- */
.article-foot{
  margin-top:30px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  align-items:center;
  justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{background:var(--primary);color:#fff;transform:translateY(-2px);}
.share-row{display:flex;align-items:center;gap:10px;}
.share-row .share-label{font-size:13px;color:var(--muted);}
.icon-btn{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--primary-dark);
  transition:transform .22s ease,border-color .22s ease,color .22s ease,box-shadow .22s ease;
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{
  transform:translateY(-3px);
  border-color:var(--primary);
  color:var(--primary);
  box-shadow:0 14px 26px -16px rgba(11,58,56,.5);
}
.icon-btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}

/* ---------- 延伸阅读 ---------- */
.post-grid{display:grid;gap:24px;}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .26s ease,box-shadow .26s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.post-card:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.post-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--primary-soft);
}
.post-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-badge{
  position:absolute;
  left:14px;
  top:14px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  color:var(--primary-dark);
  font-size:12px;
  font-weight:700;
}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-body h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  color:var(--ink);
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.post-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.post-meta svg{width:17px;height:17px;color:var(--primary);transition:transform .22s ease;}
.post-card:hover .post-meta svg{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--grad);
  color:#fff;
  padding:34px 24px;
  box-shadow:0 26px 60px -30px rgba(18,137,122,.85);
}
@media (min-width:768px){.cta-card{padding:48px 46px;}}
.cta-card::after{
  content:"";
  position:absolute;
  right:-70px;
  top:-70px;
  width:240px;
  height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28) 0%,rgba(255,255,255,0) 70%);
}
.cta-inner{
  position:relative;
  z-index:1;
  display:grid;
  gap:22px;
}
@media (min-width:1024px){
  .cta-inner{grid-template-columns:1.5fr 1fr;align-items:center;gap:40px;}
}
.cta-inner h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:800;
  line-height:1.3;
  margin-bottom:14px;
}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.92);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:639px){.cta-actions .btn{width:100%;}}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.cta-points span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 13px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.3);
  font-size:13px;
  font-weight:600;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  padding:56px 0 26px;
  background:var(--ink);
  color:rgba(255,255,255,.76);
  border-radius:32px 32px 0 0;
}
.footer-grid{display:grid;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  color:#fff;
  font-size:17px;
  font-weight:800;
}
.footer-brand .brand-mark{box-shadow:none;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:360px;}
.site-footer h4{
  margin-bottom:16px;
  color:#fff;
  font-size:15px;
  font-weight:700;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--accent);}
.footer-links a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 复制提示 ---------- */
.toast{
  position:fixed;
  left:50%;
  bottom:32px;
  transform:translate(-50%,16px);
  padding:11px 20px;
  border-radius:999px;
  background:var(--ink);
  color:#fff;
  font-size:14px;
  font-weight:600;
  box-shadow:var(--shadow-hover);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
  z-index:90;
}
.toast.is-show{opacity:1;transform:translate(-50%,0);}

/* roulang page: category1 */
:root{
  --primary:#12897A;
  --primary-dark:#0A5F55;
  --primary-soft:#E4F1EE;
  --accent:#F0733F;
  --accent-soft:#FDEDE4;
  --ink:#0B3A38;
  --text:#17211F;
  --muted:#5C6B68;
  --paper:#F6F5F1;
  --card:#FFFFFF;
  --line:#E4E6E2;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh:0 1px 2px rgba(11,58,56,.06),0 14px 34px -14px rgba(11,58,56,.20);
  --sh-hover:0 18px 40px -12px rgba(11,58,56,.28);
  --grad-brand:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
  --grad-btn:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--ink)}
p{margin:0}
input,select,textarea{font:inherit;color:inherit}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}

:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 12px;transition:padding .25s ease}
.site-header.is-stuck{padding-top:8px}
.header-bar{
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:24px;
  padding:10px 14px;
  box-shadow:var(--sh);
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary-dark);
}
.brand-mark svg{width:22px;height:22px;stroke:currentColor;fill:none}
.brand-text{font-weight:800;font-size:16px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}

.nav-cards{display:flex;align-items:center;gap:7px;flex:1;justify-content:center;min-width:0}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 11px;border-radius:14px;
  font-size:13.5px;font-weight:500;white-space:nowrap;
  background:#fff;border:1px solid var(--line);color:var(--text);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-card svg{width:17px;height:17px;stroke:currentColor;fill:none;flex:none}
.nav-card:hover{transform:translateY(-2px);border-color:var(--primary);color:var(--primary-dark);box-shadow:0 10px 22px -16px rgba(11,58,56,.6)}
.nav-card.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:700}
.nav-card.active::after{content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);width:22px;height:3px;border-radius:3px;background:var(--accent)}

.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-nav{display:none;margin-top:12px}
.mobile-nav.open{display:block}
.mobile-nav-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;
  background:rgba(255,255,255,.96);border:1px solid var(--line);
  border-radius:24px;padding:14px;box-shadow:var(--sh);
}
.mnav-card{
  display:flex;align-items:center;gap:8px;min-height:48px;
  padding:10px 12px;border-radius:14px;background:#fff;
  border:1px solid var(--line);font-size:14px;font-weight:500;
  transition:.2s;
}
.mnav-card svg{width:18px;height:18px;stroke:var(--primary);fill:none;flex:none}
.mnav-card.active{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);font-weight:700}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;isolation:isolate}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,rgba(10,95,85,.94) 0%,rgba(18,137,122,.86) 45%,rgba(240,115,63,.78) 100%);
}
.hero-inner{padding:44px 0 52px;min-height:300px;color:#fff}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.82);margin-bottom:20px}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.6}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);
  font-size:13px;font-weight:700;letter-spacing:.02em;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--accent)}
.hero-inner h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:800;
  letter-spacing:-.01em;color:#fff;margin-bottom:14px;
}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:rgba(255,255,255,.92);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  font-size:12.5px;color:#fff;
}
.hero-badge b{font-weight:800;font-variant-numeric:tabular-nums;font-size:15px}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.32);
  background:var(--primary-soft);
  box-shadow:0 24px 50px -22px rgba(4,32,30,.7);
}
@media (min-width:900px){
  .hero-grid{grid-template-columns:1.08fr .92fr;gap:48px}
  .hero-inner{padding:64px 0 72px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 14px 28px -16px rgba(18,137,122,.95)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(18,137,122,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--primary-dark);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-2px)}
.btn-onhero{background:#fff;color:var(--primary-dark);box-shadow:0 14px 30px -18px rgba(0,0,0,.5)}
.btn-onhero:hover{transform:translateY(-2px);background:#fff}
.btn-onhero-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-onhero-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-sm{height:44px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);font-weight:700;font-size:14px}
.link-more svg{width:16px;height:16px;stroke:currentColor;fill:none;transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}

/* ============ 板块 ============ */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:#fff}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head-row .section-head{margin-bottom:0}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D6DCD7}
.card-body{padding:24px}
.card-icon{
  width:46px;height:46px;border-radius:14px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--primary-dark);
}
.card-icon svg{width:23px;height:23px;stroke:currentColor;fill:none}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.75}
.grid-2{display:grid;grid-template-columns:1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:1fr;gap:20px}
.grid-4{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:960px){
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid-2{gap:24px}
  .grid-3{gap:24px}
  .grid-4{gap:24px}
}

/* ============ 图文说明 ============ */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:960px){.split{grid-template-columns:1.05fr .95fr;gap:56px}}
.prose p{color:#2A3735;font-size:16px;line-height:1.9}
.prose p + p{margin-top:18px}
.prose strong{color:var(--primary-dark);font-weight:700}
.figure-card{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--primary-soft);box-shadow:var(--sh);
}
.figure-card img{width:100%;aspect-ratio:16/11;object-fit:cover}
.figure-cap{padding:14px 20px;background:#fff;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}

/* ============ 步骤条 ============ */
.step-track{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;padding-top:8px}
@media (max-width:900px){
  .step-track{
    display:flex;gap:14px;overflow-x:auto;padding:4px 2px 16px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .step-track::-webkit-scrollbar{height:6px}
  .step-track::-webkit-scrollbar-thumb{background:#CFDBD7;border-radius:999px}
}
.step-item{position:relative;padding-top:60px;min-width:0}
@media (max-width:900px){.step-item{flex:0 0 254px;scroll-snap-align:start}}
.step-item::before{
  content:"";position:absolute;top:19px;left:48px;right:-20px;height:2px;
  background:linear-gradient(90deg,rgba(18,137,122,.85),rgba(18,137,122,.15));
}
.step-item:last-child::before{display:none}
@media (max-width:900px){.step-item::before{display:none}}
.step-num{
  position:absolute;top:0;left:0;z-index:2;
  width:40px;height:40px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--primary);color:var(--primary-dark);
  font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px -12px rgba(18,137,122,.9);
}
.step-item h3{font-size:17px;margin-bottom:8px}
.step-item p{color:var(--muted);font-size:14px;line-height:1.7}
.step-time{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  padding:5px 12px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary-dark);font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}

/* ============ 时间轴 ============ */
.timeline{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh);padding:8px 26px}
.tl-item{display:grid;grid-template-columns:1fr;gap:6px;padding:22px 0;border-bottom:1px dashed var(--line)}
.tl-item:last-child{border-bottom:0}
@media (min-width:768px){
  .tl-item{grid-template-columns:170px 1fr;gap:26px;align-items:start}
}
.tl-time{
  font-size:14px;font-weight:800;color:var(--primary-dark);
  font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:8px;
}
.tl-time::before{content:"";width:8px;height:8px;border-radius:999px;background:var(--accent);flex:none}
.tl-body h3{font-size:16.5px;margin-bottom:6px}
.tl-body p{color:var(--muted);font-size:14.5px}

/* ============ 指标卡 ============ */
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--sh);height:100%;
  display:flex;flex-direction:column;gap:6px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.metric-num{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.1;
  color:var(--primary-dark);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.metric-num span{font-size:15px;font-weight:700;color:var(--muted);margin-left:6px}
.metric-label{font-weight:700;font-size:15px;color:var(--ink)}
.metric-note{font-size:12.5px;color:var(--muted);line-height:1.6}
.metric-bar{margin-top:10px;height:6px;border-radius:999px;background:var(--primary-soft);overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:999px;background:var(--grad-brand)}

/* ============ 徽章墙 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--muted);
}
.tag svg{width:15px;height:15px;stroke:var(--primary);fill:none}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh);overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:#CBD9D5}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:20px 22px;font-weight:700;font-size:16px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";margin-left:auto;flex:none;width:12px;height:12px;margin-top:6px;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.8;border-top:1px solid var(--line);padding-top:18px}

/* ============ CTA + 表单 ============ */
.cta-wrap{
  position:relative;overflow:hidden;border-radius:28px;
  background:linear-gradient(135deg,#0A5F55 0%,#12897A 58%,#2FB39C 100%);
  color:#fff;box-shadow:0 26px 60px -28px rgba(10,95,85,.85);
}
.cta-inner{padding:36px 26px}
@media (min-width:768px){.cta-inner{padding:48px 44px}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:960px){.cta-grid{grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.88);font-size:15px;margin-bottom:20px}
.cta-points{display:grid;gap:10px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.92)}
.cta-points svg{width:18px;height:18px;stroke:#fff;fill:none;flex:none}
.form-card{background:#fff;border-radius:var(--r-lg);padding:24px;box-shadow:0 24px 50px -22px rgba(4,32,30,.6)}
@media (min-width:640px){.form-card{padding:28px}}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.field{display:flex;flex-direction:column;gap:7px}
.field-full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:700;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(18,137,122,.22);
}
.form-foot{display:flex;flex-direction:column;gap:12px;margin-top:18px}
@media (min-width:640px){.form-foot{flex-direction:row;align-items:center;justify-content:space-between}}
.form-tip{font-size:12.5px;color:var(--muted)}
.form-success{
  background:var(--primary-soft);border:1px solid #C9DED9;border-radius:var(--r-md);
  padding:26px;color:var(--primary-dark);
}
.form-success strong{display:block;font-size:17px;margin-bottom:8px}
.form-success p{font-size:14.5px;color:#2C4A46}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#CFE3E0;padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#8FD8CC}
.footer-brand strong{color:#fff;font-size:17px;font-weight:800}
.site-footer p{color:#9FBDB9;font-size:14px;line-height:1.8;max-width:340px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.footer-links{display:grid;gap:10px;font-size:14px}
.footer-links a{color:#A9C6C2;transition:color .2s ease}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8FB0AC;
}

/* ============ 响应式导航断点 ============ */
@media (max-width:1199px){
  .nav-cards{display:none}
  .nav-toggle{display:flex}
  .header-bar{justify-content:space-between}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .header-actions .btn{display:none}
  .hero-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
    --primary:#12897A;
    --primary-dark:#0A5F55;
    --primary-soft:#E4F1EE;
    --accent:#F0733F;
    --accent-soft:#FDEDE4;
    --ink:#0B3A38;
    --text:#17211F;
    --muted:#5C6B68;
    --paper:#F6F5F1;
    --card:#FFFFFF;
    --line:#E4E6E2;
    --r-lg:24px;
    --r-md:18px;
    --r-sm:14px;
    --r-pill:999px;
    --shadow:0 1px 2px rgba(11,58,56,.06),0 14px 34px -14px rgba(11,58,56,.20);
    --shadow-hover:0 18px 40px -12px rgba(11,58,56,.28);
    --grad-brand:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
    --grad-btn:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  svg{display:block;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:640px){ .container{padding-left:32px;padding-right:32px;} }
  @media (min-width:1024px){ .container{padding-left:40px;padding-right:40px;} }

  .num{font-variant-numeric:tabular-nums;}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    padding-top:16px;
    transition:padding .25s ease;
  }
  .site-header.scrolled{padding-top:8px;}
  .nav-inner{
    display:flex;
    align-items:center;
    gap:14px;
    padding:10px 14px;
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow);
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:16px;
    color:var(--ink);
    white-space:nowrap;
    flex:0 0 auto;
  }
  .brand-mark{
    width:38px;height:38px;
    border-radius:var(--r-pill);
    display:grid;place-items:center;
    background:var(--primary-soft);
    color:var(--primary-dark);
    border:1px solid rgba(18,137,122,.18);
  }
  .brand-mark svg{width:21px;height:21px;stroke:currentColor;}
  .logo-text{letter-spacing:-.01em;}

  .nav-cards{
    display:flex;
    align-items:center;
    gap:6px;
    flex:1 1 auto;
    justify-content:center;
    min-width:0;
  }
  .nav-card{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:8px 12px;
    border-radius:var(--r-sm);
    font-size:14px;
    font-weight:500;
    color:var(--muted);
    border:1px solid transparent;
    transition:background-color .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    white-space:nowrap;
  }
  .nav-card svg{width:18px;height:18px;stroke:currentColor;flex:0 0 auto;}
  .nav-card:hover{
    background:var(--primary-soft);
    color:var(--primary-dark);
    border-color:rgba(18,137,122,.22);
    transform:translateY(-2px);
  }
  .nav-card.active{
    background:var(--primary);
    color:#fff;
    box-shadow:inset 0 -3px 0 var(--accent);
  }
  .nav-card.active:hover{transform:translateY(-2px);}

  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    color:var(--primary-dark);
    cursor:pointer;
    transition:background-color .2s ease,border-color .2s ease;
  }
  .nav-toggle:hover{background:var(--primary-soft);border-color:rgba(18,137,122,.35);}
  .nav-toggle svg{width:22px;height:22px;stroke:currentColor;}

  .nav-panel{
    margin-top:10px;
    padding:14px;
    background:rgba(255,255,255,.96);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow);
  }
  .nav-panel[hidden]{display:none;}
  .nav-panel-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
  }
  .nav-panel .nav-card{
    justify-content:flex-start;
    padding:12px 14px;
    min-height:48px;
    background:var(--paper);
    border:1px solid var(--line);
    font-size:14px;
  }
  .nav-panel .nav-card.active{
    background:var(--primary);
    color:#fff;
    border-color:var(--primary);
  }

  @media (max-width:1279px){
    .nav-card{padding:7px 9px;font-size:13px;}
    .nav-card svg{width:16px;height:16px;}
    .logo-text{font-size:15px;}
  }
  @media (max-width:1023px){
    .nav-cards{display:none;}
    .nav-toggle{display:inline-flex;}
    .nav-actions .btn{display:none;}
  }
  @media (max-width:520px){
    .logo-text{font-size:14px;}
    .brand-mark{width:34px;height:34px;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 22px;
    border-radius:var(--r-sm);
    font-size:15px;
    font-weight:700;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  }
  .btn svg{width:18px;height:18px;stroke:currentColor;}
  .btn-primary{
    background-image:var(--grad-btn);
    color:#fff;
    box-shadow:0 10px 22px -12px rgba(10,95,85,.85);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(10,95,85,.8);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -10px rgba(10,95,85,.9);}
  .btn-ghost{
    background:#fff;
    color:var(--primary-dark);
    border-color:rgba(18,137,122,.35);
  }
  .btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{height:44px;padding:0 18px;font-size:14px;}
  .link-arrow{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--primary-dark);
    font-weight:700;
    font-size:14px;
  }
  .link-arrow svg{width:16px;height:16px;stroke:currentColor;transition:transform .2s ease;}
  .link-arrow:hover svg{transform:translateX(2px);}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  /* ---------- 面包屑 / Hero ---------- */
  .crumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:rgba(255,255,255,.82);
    margin-bottom:18px;
    flex-wrap:wrap;
  }
  .crumb a:hover{color:#fff;text-decoration:underline;}
  .crumb-current{color:#fff;font-weight:700;}

  .hero{
    position:relative;
    overflow:hidden;
    border-radius:0 0 var(--r-lg) var(--r-lg);
    background-image:var(--grad-brand);
    color:#fff;
    min-height:290px;
    display:flex;
    align-items:center;
    padding:44px 0 52px;
    margin-bottom:0;
  }
  .hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(circle at 84% 18%, rgba(255,255,255,.28), transparent 42%),
      radial-gradient(circle at 12% 88%, rgba(255,255,255,.18), transparent 46%),
      linear-gradient(180deg, rgba(11,58,56,.28) 0%, rgba(11,58,56,.10) 60%, rgba(11,58,56,.24) 100%);
    pointer-events:none;
  }
  .hero .container{position:relative;z-index:2;}
  .hero h1{
    font-size:clamp(30px,4.4vw,54px);
    line-height:1.15;
    font-weight:800;
    letter-spacing:-.01em;
    max-width:20ch;
  }
  .hero-sub{
    margin-top:16px;
    font-size:clamp(15px,1.6vw,18px);
    line-height:1.7;
    color:rgba(255,255,255,.94);
    max-width:44ch;
  }
  .hero-badges{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:26px;
  }
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 14px;
    border-radius:var(--r-pill);
    background:rgba(255,255,255,.16);
    border:1px solid rgba(255,255,255,.36);
    font-size:13px;
    font-weight:500;
    -webkit-backdrop-filter:blur(6px);
    backdrop-filter:blur(6px);
  }
  .hero-badge strong{font-weight:800;font-size:15px;}

  /* ---------- 板块 ---------- */
  .section{padding:64px 0;}
  @media (min-width:640px){ .section{padding:88px 0;} }
  @media (min-width:1024px){ .section{padding:112px 0;} }
  .section-tight{padding-top:44px;}
  @media (min-width:1024px){ .section-tight{padding-top:56px;} }

  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:34px;
    flex-wrap:wrap;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:5px 12px;
    border-radius:var(--r-pill);
    background:var(--primary-soft);
    color:var(--primary-dark);
    font-size:12px;
    font-weight:700;
    letter-spacing:.04em;
    margin-bottom:14px;
  }
  .section-head h2{
    font-size:clamp(22px,2.6vw,34px);
    line-height:1.3;
    font-weight:700;
    color:var(--ink);
    letter-spacing:-.01em;
    max-width:26ch;
  }
  .section-head p{
    margin-top:12px;
    color:var(--muted);
    font-size:15px;
    max-width:52ch;
    line-height:1.8;
  }

  /* ---------- 大数字卡组 ---------- */
  .metric-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
  }
  @media (min-width:640px){ .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;} }

  .metric-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:24px 22px 22px;
    box-shadow:var(--shadow);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    display:flex;
    flex-direction:column;
    gap:6px;
  }
  .metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,137,122,.28);}
  .metric-icon{
    width:44px;height:44px;
    border-radius:var(--r-pill);
    display:grid;place-items:center;
    background:var(--primary-soft);
    color:var(--primary-dark);
    margin-bottom:10px;
  }
  .metric-icon svg{width:22px;height:22px;stroke:currentColor;}
  .metric-icon.warm{background:var(--accent-soft);color:#C24E1D;}
  .metric-value{
    display:flex;
    align-items:baseline;
    gap:4px;
    font-size:clamp(28px,4vw,44px);
    font-weight:800;
    line-height:1.1;
    color:var(--ink);
    letter-spacing:-.02em;
  }
  .metric-value span{font-size:16px;font-weight:700;color:var(--muted);}
  .metric-title{font-size:16px;font-weight:700;color:var(--ink);}
  .metric-desc{font-size:13px;line-height:1.7;color:var(--muted);}
  .note{
    margin-top:20px;
    font-size:13px;
    color:var(--muted);
    display:flex;
    align-items:flex-start;
    gap:8px;
  }
  .note svg{width:16px;height:16px;stroke:var(--accent);flex:0 0 auto;margin-top:4px;}

  /* ---------- 条状对比条 ---------- */
  .bars-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow);
    padding:28px 24px;
  }
  @media (min-width:1024px){ .bars-card{padding:36px 34px;} }
  .bars-list{display:flex;flex-direction:column;gap:20px;margin-top:26px;}
  .bar-row{
    display:grid;
    grid-template-columns:130px minmax(0,1fr) 66px;
    align-items:center;
    gap:16px;
  }
  .bar-label{font-size:14px;font-weight:700;color:var(--ink);}
  .bar-track{
    position:relative;
    height:12px;
    border-radius:var(--r-pill);
    background:#EDF1EF;
    overflow:hidden;
  }
  .bar-fill{
    display:block;
    height:100%;
    width:10%;
    border-radius:var(--r-pill);
    background-image:linear-gradient(90deg,#12897A 0%,#2FB39C 100%);
    transition:width .9s cubic-bezier(.22,.7,.3,1);
  }
  .bar-fill.warm{background-image:linear-gradient(90deg,#F0733F 0%,#F5A377 100%);}
  .bar-value{font-size:14px;font-weight:800;color:var(--primary-dark);text-align:right;}
  @media (max-width:639px){
    .bar-row{grid-template-columns:minmax(0,1fr) 60px;row-gap:8px;}
    .bar-label{grid-column:1 / -1;}
  }
  .bars-legend{
    display:flex;
    flex-wrap:wrap;
    gap:16px;
    margin-top:26px;
    padding-top:20px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--muted);
  }
  .legend-dot{display:inline-flex;align-items:center;gap:8px;}
  .legend-dot i{width:10px;height:10px;border-radius:var(--r-pill);display:inline-block;background:var(--primary);}
  .legend-dot.warm i{background:var(--accent);}

  /* ---------- 说明段落 + 配图 ---------- */
  .split{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:center;
  }
  @media (min-width:1024px){ .split{grid-template-columns:1.05fr .95fr;gap:56px;} }
  .split-media{
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    background:var(--primary-soft);
    aspect-ratio:16 / 11;
  }
  .split-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .split-media:hover img{transform:scale(1.03);}
  .prose p{color:var(--muted);font-size:16px;line-height:1.9;}
  .prose p + p{margin-top:20px;}
  .prose strong{color:var(--ink);font-weight:700;}

  /* ---------- 步骤清单 ---------- */
  .steps{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
  }
  @media (min-width:640px){ .steps{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;} }
  .step-card{
    position:relative;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    padding:24px 20px;
    box-shadow:var(--shadow);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,137,122,.28);}
  .step-num{
    width:34px;height:34px;
    border-radius:var(--r-pill);
    display:grid;place-items:center;
    background-image:var(--grad-btn);
    color:#fff;
    font-weight:800;
    font-size:14px;
    margin-bottom:14px;
    font-variant-numeric:tabular-nums;
  }
  .step-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px;}
  .step-card p{font-size:14px;line-height:1.75;color:var(--muted);}

  /* ---------- 继续了解 ---------- */
  .pill-row{display:flex;flex-wrap:wrap;gap:12px;}
  .pill-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:44px;
    padding:10px 18px;
    border-radius:var(--r-pill);
    background:#fff;
    border:1px solid var(--line);
    font-size:14px;
    font-weight:700;
    color:var(--primary-dark);
    box-shadow:0 1px 2px rgba(11,58,56,.05);
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .pill-link svg{width:16px;height:16px;stroke:currentColor;}
  .pill-link:hover{transform:translateY(-2px);border-color:var(--primary);background:var(--primary-soft);box-shadow:var(--shadow);}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--shadow);
    overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{border-color:rgba(18,137,122,.3);}
  .faq-item[open]{box-shadow:var(--shadow-hover);}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    padding:20px 24px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    font-size:16px;
    font-weight:700;
    color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-icon{
    flex:0 0 auto;
    width:28px;height:28px;
    border-radius:var(--r-pill);
    display:grid;place-items:center;
    background:var(--primary-soft);
    color:var(--primary-dark);
    transition:transform .25s ease,background-color .25s ease;
  }
  .faq-icon svg{width:16px;height:16px;stroke:currentColor;}
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent-soft);color:#C24E1D;}
  .faq-body{
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.85;
    color:var(--muted);
    border-top:1px solid var(--line);
    padding-top:16px;
    margin-top:-2px;
  }

  /* ---------- CTA ---------- */
  .cta-card{
    border-radius:var(--r-lg);
    border:1px solid rgba(18,137,122,.22);
    background-image:linear-gradient(135deg,#E4F1EE 0%,#FDEDE4 100%);
    box-shadow:var(--shadow);
    padding:34px 26px;
    display:flex;
    flex-direction:column;
    gap:24px;
  }
  @media (min-width:1024px){
    .cta-card{padding:48px 46px;flex-direction:row;align-items:center;justify-content:space-between;gap:40px;}
  }
  .cta-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink);line-height:1.3;letter-spacing:-.01em;}
  .cta-card p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;max-width:46ch;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  @media (max-width:639px){ .cta-actions .btn{width:100%;} }

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:20px;
    background:var(--ink);
    color:rgba(255,255,255,.78);
    padding:60px 0 30px;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:34px;
  }
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;} }
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#8EE0D2;border-color:rgba(255,255,255,.2);}
  .footer-grid p{line-height:1.85;color:rgba(255,255,255,.7);font-size:14px;max-width:34ch;}
  .footer-grid h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{color:rgba(255,255,255,.74);font-size:14px;transition:color .2s ease;}
  .footer-links a:hover{color:var(--accent);}
  .footer-bottom{
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    justify-content:space-between;
    font-size:13px;
    color:rgba(255,255,255,.6);
  }

/* roulang page: category3 */
:root{
    --primary:#12897A;
    --primary-dark:#0A5F55;
    --primary-soft:#E4F1EE;
    --accent:#F0733F;
    --accent-soft:#FDEDE4;
    --ink:#0B3A38;
    --text:#17211F;
    --muted:#5C6B68;
    --paper:#F6F5F1;
    --card:#FFFFFF;
    --line:#E4E6E2;
    --r-lg:24px;
    --r-md:18px;
    --r-sm:14px;
    --shadow:0 1px 2px rgba(11,58,56,.06),0 14px 34px -14px rgba(11,58,56,.20);
    --shadow-hover:0 18px 40px -12px rgba(11,58,56,.28);
    --grad:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
    --grad-btn:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
    --gap:24px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:110px}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  ul,ol{margin:0;padding:0;list-style:none}
  p{margin:0}
  h1,h2,h3,h4{margin:0;line-height:1.3}
  button,input,select,textarea{font:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
  @media (min-width:1024px){.container{padding-left:40px;padding-right:40px}}

  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  @media (min-width:1024px){.section{padding:112px 0}}
  .section-tight{padding:48px 0}
  @media (min-width:1024px){.section-tight{padding:64px 0}}

  /* ---------- 头部与卡片化导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:14px 0;transition:padding .25s ease}
  .site-header.is-scrolled{padding:8px 0}
  .nav-shell{
    display:flex;align-items:center;gap:16px;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:10px 14px;
    box-shadow:var(--shadow);
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex:none}
  .brand-mark{
    width:38px;height:38px;border-radius:999px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--grad);color:#fff;flex:none;
  }
  .brand-mark svg{width:22px;height:22px;stroke:currentColor}
  .brand strong{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
  .nav-cards{display:none;align-items:center;gap:8px;margin-left:auto}
  @media (min-width:1024px){.nav-cards{display:flex}}
  .nav-card{
    position:relative;display:inline-flex;align-items:center;gap:7px;
    padding:9px 13px;border-radius:var(--r-sm);
    background:#fff;border:1px solid var(--line);
    font-size:14px;font-weight:500;color:var(--text);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
    min-height:44px;
  }
  .nav-card svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
  .nav-card:hover{transform:translateY(-2px);border-color:var(--primary);color:var(--primary-dark);box-shadow:var(--shadow)}
  .nav-card:active{transform:translateY(0)}
  .nav-card.active{background:var(--primary-soft);border-color:rgba(18,137,122,.35);color:var(--primary-dark);font-weight:700}
  .nav-card.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;background:var(--primary)}
  .nav-cta{display:none;flex:none}
  @media (min-width:1024px){.nav-cta{display:inline-flex}}
  .nav-toggle{
    margin-left:auto;width:46px;height:46px;flex:none;
    display:inline-flex;align-items:center;justify-content:center;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
    cursor:pointer;transition:border-color .2s ease,color .2s ease;
  }
  .nav-toggle:hover{border-color:var(--primary);color:var(--primary-dark)}
  .nav-toggle svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round}
  @media (min-width:1024px){.nav-toggle{display:none}}
  .mobile-panel{
    display:none;margin-top:12px;padding:14px;
    background:rgba(255,255,255,.96);border:1px solid var(--line);
    border-radius:var(--r-lg);box-shadow:var(--shadow);
    grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;
  }
  .mobile-panel.open{display:grid}
  @media (min-width:1024px){.mobile-panel.open{display:none}}
  .mobile-panel .nav-card{justify-content:flex-start;width:100%}
  .mobile-panel .panel-wide{grid-column:1 / -1;justify-content:center}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 22px;border-radius:var(--r-sm);
    font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 10px 24px -12px rgba(10,95,85,.75)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(10,95,85,.85)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:#fff;border-color:rgba(18,137,122,.45);color:var(--primary-dark)}
  .btn-ghost:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);
    font-weight:700;font-size:15px;min-height:44px;
  }
  .btn-text svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
  .btn-text:hover{color:var(--accent)}
  .btn-text:hover svg{transform:translateX(3px)}

  /* ---------- 标签 / 徽章 ---------- */
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:#fff;border:1px solid rgba(18,137,122,.30);
    color:var(--primary-dark);font-size:13px;font-weight:700;
  }
  .eyebrow::before{content:"";width:7px;height:7px;border-radius:999px;background:var(--accent)}
  .badge{
    display:inline-flex;align-items:center;gap:10px;
    padding:10px 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);
    box-shadow:var(--shadow);
    transition:transform .2s ease;
  }
  .badge:hover{transform:translateY(-2px)}
  .badge svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
  .badge b{font-size:17px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
  .badge b em{font-style:normal;font-size:12px;font-weight:700;color:var(--muted);margin-left:3px}
  .badge span{font-size:12px;color:var(--muted);line-height:1.4}
  .tag{
    display:inline-block;padding:4px 12px;border-radius:999px;
    background:var(--primary-soft);color:var(--primary-dark);
    font-size:12px;font-weight:700;
  }
  .tag-accent{background:var(--accent-soft);color:#B84A1E}

  /* ---------- 卡片 ---------- */
  .card{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-lg);padding:26px;
    box-shadow:var(--shadow);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    height:100%;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,137,122,.30)}
  .card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:10px}
  .card p{font-size:14px;line-height:1.7;color:var(--muted)}
  .icon-chip{
    width:44px;height:44px;border-radius:var(--r-sm);
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--primary-soft);color:var(--primary-dark);margin-bottom:16px;
  }
  .icon-chip svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .icon-chip.accent{background:var(--accent-soft);color:#B84A1E}

  .section-head{margin-bottom:36px;max-width:760px}
  .section-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;color:var(--ink);margin-top:14px}
  .section-head p{margin-top:12px;color:var(--muted);font-size:16px}
  .section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:36px}
  .section-head-row h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;color:var(--ink);margin-top:14px}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;overflow:hidden;border-radius:0 0 var(--r-lg) var(--r-lg);
    background-image:
      linear-gradient(115deg,rgba(10,95,85,.96) 0%,rgba(18,137,122,.92) 52%,rgba(240,115,63,.68) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    color:#fff;
  }
  .hero-inner{
    display:grid;gap:36px;align-items:center;
    padding-top:74px;padding-bottom:74px;
  }
  @media (min-width:768px){.hero-inner{padding-top:96px;padding-bottom:96px}}
  @media (min-width:1024px){.hero-inner{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;min-height:320px}}
  .hero h1{
    font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:800;
    letter-spacing:-.01em;margin-top:18px;text-shadow:0 2px 16px rgba(6,45,42,.35);
  }
  .hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.92);max-width:520px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hero .btn-ghost{background:rgba(255,255,255,.94);border-color:transparent;color:var(--primary-dark)}
  .hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
  .hero-badges .badge{background:rgba(255,255,255,.95)}
  .hero-art{
    background:#fff;border-radius:var(--r-lg);padding:14px;
    box-shadow:0 26px 60px -22px rgba(6,45,42,.55);
  }
  .hero-art img{border-radius:var(--r-md);aspect-ratio:16/10;object-fit:cover;background:var(--primary-soft);width:100%}
  .hero-art-list{margin-top:14px;display:grid;gap:10px}
  .hero-art-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.6}
  .hero-art-list svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:var(--primary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

  /* ---------- 说明段落 ---------- */
  .prose-grid{display:grid;gap:28px}
  @media (min-width:1024px){.prose-grid{grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:48px}}
  .prose p{font-size:16.5px;line-height:1.9;color:var(--text);margin-bottom:1.15em}
  .prose p:last-child{margin-bottom:0}
  .aside-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:26px;box-shadow:var(--shadow);height:100%;
  }
  .aside-card img{border-radius:var(--r-md);aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--primary-soft);margin-bottom:18px}
  .aside-card h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:12px}
  .aside-card ul{display:grid;gap:10px}
  .aside-card li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.65}
  .aside-card li::before{content:"";width:7px;height:7px;border-radius:999px;background:var(--primary);flex:none;margin-top:9px}

  /* ---------- 步骤竖列 + 代码卡 ---------- */
  .steps-grid{display:grid;gap:28px}
  @media (min-width:1024px){.steps-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}}
  .steps-vertical{position:relative;display:grid;gap:22px}
  .step-item{position:relative;display:flex;gap:18px;padding-bottom:6px}
  .step-item::before{
    content:"";position:absolute;left:21px;top:46px;bottom:-16px;width:2px;
    background:linear-gradient(180deg,rgba(18,137,122,.38),rgba(18,137,122,.06));
  }
  .step-item:last-child::before{display:none}
  .step-num{
    width:44px;height:44px;flex:none;border-radius:999px;
    display:inline-flex;align-items:center;justify-content:center;
    background:#fff;border:2px solid var(--primary);color:var(--primary-dark);
    font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;z-index:1;
  }
  .step-body h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:6px}
  .step-body p{font-size:14px;line-height:1.7;color:var(--muted)}

  .code-card{
    background:var(--ink);border-radius:var(--r-md);padding:22px;
    border:1px solid rgba(255,255,255,.10);box-shadow:var(--shadow);
    margin-top:24px;overflow:hidden;
  }
  .code-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
  .code-card-head span{font-size:13px;font-weight:700;color:rgba(255,255,255,.78)}
  .code-dots{display:flex;gap:6px}
  .code-dots i{width:9px;height:9px;border-radius:999px;background:rgba(255,255,255,.28);display:block}
  .code-card pre{
    margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    font-size:13px;line-height:1.85;color:#E8F6F3;white-space:pre-wrap;word-break:break-word;
  }
  .code-card pre b{color:#8FD8CB;font-weight:600}
  .code-card pre i{color:#F6B294;font-style:normal}

  /* ---------- 接入节奏条 ---------- */
  .rhythm-strip{
    display:grid;gap:16px;grid-template-columns:1fr;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:26px;box-shadow:var(--shadow);
  }
  @media (min-width:640px){.rhythm-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.rhythm-strip{grid-template-columns:repeat(4,minmax(0,1fr))}}
  .rhythm-item{padding:6px 4px;border-left:3px solid var(--primary-soft);padding-left:16px}
  .rhythm-item b{display:block;font-size:clamp(22px,3vw,28px);font-weight:800;color:var(--primary-dark);font-variant-numeric:tabular-nums;line-height:1.2}
  .rhythm-item span{display:block;margin-top:6px;font-size:12px;color:var(--muted);line-height:1.5}
  .rhythm-item em{display:block;font-style:normal;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:2px}

  /* ---------- FAQ ---------- */
  .faq{display:grid;gap:14px}
  .faq details{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:4px 6px;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq details:hover{border-color:rgba(18,137,122,.35)}
  .faq details[open]{box-shadow:var(--shadow);border-color:rgba(18,137,122,.35)}
  .faq summary{
    list-style:none;cursor:pointer;padding:18px 20px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    font-size:16px;font-weight:700;color:var(--ink);min-height:44px;
  }
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{
    content:"+";font-size:22px;font-weight:700;color:var(--primary);
    line-height:1;transition:transform .25s ease;flex:none;
  }
  .faq details[open] summary::after{transform:rotate(45deg)}
  .faq .faq-body{padding:0 20px 20px;border-top:1px solid var(--line);margin-top:2px;padding-top:16px}
  .faq .faq-body p{font-size:15px;line-height:1.8;color:var(--muted)}

  /* ---------- CTA 与表单 ---------- */
  .cta-card{
    position:relative;overflow:hidden;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:32px;box-shadow:var(--shadow);
  }
  .cta-card::before{
    content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--grad);
  }
  @media (min-width:768px){.cta-card{padding:44px}}
  .cta-grid{display:grid;gap:32px}
  @media (min-width:1024px){.cta-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:56px}}
  .cta-card h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--ink);margin-top:14px}
  .cta-card .cta-note{margin-top:14px;font-size:15px;color:var(--muted)}
  .cta-points{margin-top:22px;display:grid;gap:12px}
  .cta-points li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.65}
  .cta-points svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:var(--primary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
  .form-grid{display:grid;grid-template-columns:1fr;gap:16px}
  @media (min-width:640px){.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .field{display:flex;flex-direction:column;gap:8px}
  .field.full{grid-column:1 / -1}
  .field label{font-size:13px;font-weight:700;color:var(--ink)}
  .field input,.field select,.field textarea{
    height:48px;border-radius:var(--r-sm);border:1px solid var(--line);
    background:#fff;padding:0 14px;font-size:15px;color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease;
    width:100%;
  }
  .field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
  .field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(18,137,122,.45)}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(18,137,122,.28);
  }
  .form-actions{grid-column:1 / -1;display:flex;justify-content:flex-start;gap:14px;margin-top:4px}
  @media (min-width:768px){.form-actions{justify-content:flex-end}}
  @media (max-width:767px){.form-actions .btn{width:100%}}
  .form-success{
    display:none;background:var(--primary-soft);border:1px solid rgba(18,137,122,.35);
    border-radius:var(--r-md);padding:26px;text-align:center;
  }
  .form-success.show{display:block}
  .form-success h3{font-size:19px;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
  .form-success p{font-size:14px;color:var(--muted)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:24px}
  .footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .footer-brand .brand-mark{background:var(--grad);width:36px;height:36px}
  .footer-brand strong{color:#fff;font-size:17px;font-weight:800}
  .site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px}
  .site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
  .footer-links{display:grid;gap:11px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.74);transition:color .2s ease}
  .footer-links a:hover{color:var(--accent)}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.58);
  }

/* roulang page: category4 */
:root{
    --primary:#12897A;
    --primary-dark:#0A5F55;
    --primary-soft:#E4F1EE;
    --accent:#F0733F;
    --accent-soft:#FDEDE4;
    --ink:#0B3A38;
    --text:#17211F;
    --muted:#5C6B68;
    --paper:#F6F5F1;
    --card:#FFFFFF;
    --line:#E4E6E2;
    --r-lg:24px;
    --r-md:18px;
    --r-sm:14px;
    --shadow:0 1px 2px rgba(11,58,56,.06), 0 14px 34px -14px rgba(11,58,56,.20);
    --shadow-hover:0 18px 40px -12px rgba(11,58,56,.28);
    --brand-gradient:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
    --btn-gradient:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:640px){.container{padding:0 32px}}
  @media (min-width:1024px){.container{padding:0 40px}}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    padding:10px 0 6px;
    transition:padding .25s ease;
  }
  .site-header.shrink{padding:4px 0 2px}
  .nav-shell{
    display:flex;
    align-items:center;
    gap:14px;
    padding:10px 14px;
    border-radius:var(--r-lg);
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:38px;height:38px;border-radius:999px;
    display:grid;place-items:center;
    background:var(--brand-gradient);
    color:#fff;
    box-shadow:0 8px 18px -8px rgba(18,137,122,.7);
  }
  .brand-mark svg{width:22px;height:22px}
  .brand-text{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
  .nav-cards{display:flex;flex:1;justify-content:center;gap:8px;min-width:0}
  .nav-card{
    position:relative;
    display:flex;flex-direction:column;align-items:center;gap:4px;
    padding:7px 11px;
    min-width:72px;
    border-radius:var(--r-sm);
    background:#fff;
    border:1px solid var(--line);
    color:var(--muted);
    font-size:12px;
    line-height:1.3;
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
  }
  .nav-card svg{width:19px;height:19px;stroke:currentColor;fill:none}
  .nav-card:hover{transform:translateY(-2px);border-color:rgba(18,137,122,.45);color:var(--primary-dark);box-shadow:0 10px 22px -14px rgba(11,58,56,.45)}
  .nav-card.active{background:var(--primary-soft);color:var(--primary-dark);border-color:rgba(18,137,122,.4);font-weight:700}
  .nav-card.active::after{
    content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
    width:20px;height:3px;border-radius:3px;background:var(--primary);
  }
  .nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
  .nav-toggle{
    display:none;
    width:44px;height:44px;border-radius:var(--r-sm);
    background:#fff;border:1px solid var(--line);
    align-items:center;justify-content:center;
    cursor:pointer;
  }
  .nav-toggle svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round}
  @media (max-width:1180px){
    .nav-card{min-width:64px;padding:6px 8px;font-size:11px}
    .brand-text{font-size:14px}
  }
  @media (max-width:1023px){
    .nav-toggle{display:flex}
    .nav-cards{
      display:none;
      position:absolute;
      left:20px;right:20px;top:calc(100% + 8px);
      padding:12px;
      background:rgba(255,255,255,.98);
      border:1px solid var(--line);
      border-radius:var(--r-lg);
      box-shadow:var(--shadow-hover);
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px;
      justify-content:stretch;
    }
    .nav-cards.open{display:grid}
    .nav-card{flex-direction:row;justify-content:center;gap:8px;min-width:0;padding:11px 10px;font-size:13px}
    .nav-card.active::after{left:auto;right:10px;bottom:50%;transform:translateY(50%);width:3px;height:18px}
    .nav-shell{position:relative}
  }
  @media (max-width:519px){
    .brand-text{font-size:13px}
    .nav-actions .btn{display:none}
    .nav-cards{left:12px;right:12px}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 22px;
    border-radius:var(--r-sm);
    font-size:15px;font-weight:700;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
    white-space:nowrap;
  }
  .btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
  .btn-primary{background:var(--btn-gradient);color:#fff;box-shadow:0 12px 26px -14px rgba(10,95,85,.85)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(10,95,85,.9)}
  .btn-ghost{background:#fff;color:var(--primary-dark);border-color:rgba(18,137,122,.4)}
  .btn-ghost:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:0 14px 28px -18px rgba(11,58,56,.5)}
  .btn-light{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.5)}
  .btn-light:hover{background:rgba(255,255,255,.26);transform:translateY(-2px)}
  .btn-sm{height:42px;padding:0 16px;font-size:14px}
  .btn:active{transform:translateY(0) scale(.99)}
  .btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.nav-card:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
  }
  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary-dark);font-weight:700;font-size:14px;
  }
  .text-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
  .text-link:hover svg{transform:translateX(3px)}

  /* ---------- Hero ---------- */
  .hero-safe{position:relative;overflow:hidden;margin-top:6px;border-radius:0}
  .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:var(--primary-soft)}
  .hero-veil{
    position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(10,95,85,.9) 0%,rgba(18,137,122,.78) 48%,rgba(240,115,63,.72) 100%);
  }
  .hero-safe .container{position:relative;z-index:2}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 16px;border-radius:999px;
    background:rgba(255,255,255,.18);
    border:1px solid rgba(255,255,255,.45);
    color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em;
  }
  .hero-title{
    margin-top:18px;
    color:#fff;
    font-size:clamp(30px,4.4vw,54px);
    line-height:1.15;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .hero-sub{margin-top:14px;color:rgba(255,255,255,.94);font-size:clamp(16px,1.6vw,19px);font-weight:500}
  .hero-desc{margin-top:14px;max-width:760px;margin-left:auto;margin-right:auto;color:rgba(255,255,255,.86);font-size:15px;line-height:1.9}
  .badge-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}
  .hero-badge{
    display:inline-flex;align-items:baseline;gap:8px;
    padding:9px 16px;border-radius:999px;
    background:rgba(255,255,255,.16);
    border:1px solid rgba(255,255,255,.42);
    color:#fff;font-size:12px;
    transition:transform .2s ease, background .2s ease;
  }
  .hero-badge strong{font-size:16px;font-weight:800}
  .hero-badge:hover{transform:translateY(-2px);background:rgba(255,255,255,.24)}

  /* ---------- 通用板块 ---------- */
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  @media (min-width:1024px){.section{padding:112px 0}}
  .section-head{max-width:720px}
  .eyebrow{
    display:inline-block;padding:5px 13px;border-radius:999px;
    background:var(--primary-soft);color:var(--primary-dark);
    font-size:12px;font-weight:700;letter-spacing:.04em;
  }
  .h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;color:var(--ink);margin-top:14px;letter-spacing:-.01em}
  .lead{margin-top:12px;color:var(--muted);font-size:15px}

  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow);
    transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .card-hover:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,137,122,.28)}

  /* ---------- 双列图标清单 ---------- */
  .check-grid{display:grid;gap:20px;margin-top:36px}
  @media (min-width:768px){.check-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}
  .check-item{
    display:flex;gap:14px;align-items:flex-start;
    padding:22px;border-radius:var(--r-md);
    background:#fff;border:1px solid var(--line);
    box-shadow:var(--shadow);
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  }
  .check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(18,137,122,.3)}
  .check-icon{
    flex:0 0 44px;width:44px;height:44px;border-radius:14px;
    display:grid;place-items:center;
    background:var(--primary-soft);color:var(--primary-dark);
  }
  .check-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .check-item h3{font-size:17px;color:var(--ink);font-weight:700}
  .check-item p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--muted)}

  /* ---------- 说明段落 ---------- */
  .prose-wrap{display:grid;gap:32px}
  @media (min-width:1024px){.prose-wrap{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:48px;align-items:start}}
  .article-body p{font-size:16px;line-height:1.9;color:#243130;margin-bottom:1.2em}
  .article-body p:last-child{margin-bottom:0}
  .article-body h3{font-size:19px;color:var(--ink);margin:32px 0 12px;position:relative;padding-left:14px}
  .article-body h3::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--primary)}
  .aside-card{padding:26px;border-radius:var(--r-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
  .aside-card img{border-radius:var(--r-md);aspect-ratio:16/10;object-fit:cover;background:var(--primary-soft);margin-bottom:18px}
  .aside-card h3{font-size:18px;color:var(--ink)}
  .aside-list{margin-top:14px;display:grid;gap:10px}
  .aside-list li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.7}
  .aside-list svg{flex:0 0 16px;width:16px;height:16px;margin-top:6px;stroke:var(--primary);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

  /* ---------- 徽章墙 ---------- */
  .badge-wall{
    margin-top:34px;
    padding:32px 24px;
    border-radius:var(--r-lg);
    background:linear-gradient(135deg,#FFFFFF 0%,var(--primary-soft) 100%);
    border:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:center;
  }
  .wall-pill{
    display:inline-flex;align-items:center;gap:8px;
    padding:10px 18px;border-radius:999px;
    background:#fff;border:1px solid rgba(18,137,122,.28);
    color:var(--primary-dark);font-size:13px;font-weight:700;
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .wall-pill svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
  .wall-pill:hover{transform:translateY(-2px);box-shadow:0 12px 24px -16px rgba(11,58,56,.6);border-color:var(--primary)}

  /* ---------- 数据区 ---------- */
  .stat-grid{display:grid;gap:18px;margin-top:36px;grid-template-columns:1fr}
  @media (min-width:640px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}}
  .stat-card{
    padding:26px 22px;border-radius:var(--r-lg);
    background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
    display:flex;flex-direction:column;gap:8px;height:100%;
    transition:transform .25s ease, box-shadow .25s ease;
  }
  .stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .stat-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
  .stat-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
  .stat-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .stat-value{font-size:clamp(28px,4vw,44px);font-weight:800;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums}
  .stat-value span{font-size:15px;font-weight:700;color:var(--muted);margin-left:4px}
  .stat-note{font-size:12px;color:var(--muted);line-height:1.6}
  .stat-bar{height:6px;border-radius:999px;background:var(--primary-soft);overflow:hidden;margin-top:auto}
  .stat-bar i{display:block;height:100%;border-radius:999px;background:var(--brand-gradient)}

  /* ---------- FAQ ---------- */
  .faq-list{margin-top:34px;display:grid;gap:14px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    box-shadow:var(--shadow);overflow:hidden;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .faq-item:hover{border-color:rgba(18,137,122,.3);box-shadow:var(--shadow-hover)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;
    font-size:16px;font-weight:700;color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-arrow{
    flex:0 0 30px;width:30px;height:30px;border-radius:999px;
    display:grid;place-items:center;background:var(--primary-soft);color:var(--primary-dark);
    transition:transform .25s ease, background .25s ease;
  }
  .faq-arrow svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
  .faq-item[open] .faq-arrow{transform:rotate(180deg);background:var(--primary);color:#fff}
  .faq-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:0}

  /* ---------- CTA / 表单 ---------- */
  .cta-card{
    border-radius:var(--r-lg);
    padding:36px 24px;
    background:#fff;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  @media (min-width:768px){.cta-card{padding:44px}}
  .form-grid{display:grid;gap:18px;margin-top:26px;grid-template-columns:1fr}
  @media (min-width:768px){.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .field{display:flex;flex-direction:column;gap:8px}
  .field label{font-size:13px;font-weight:700;color:var(--ink)}
  .field input,.field select,.field textarea{
    height:48px;padding:0 14px;
    border-radius:var(--r-sm);
    border:1px solid var(--line);
    background:#FCFCFA;
    font-size:15px;
    transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .field textarea{height:auto;min-height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);background:#fff;
    box-shadow:0 0 0 2px rgba(18,137,122,.35);
  }
  .field-full{grid-column:1/-1}
  .form-actions{display:flex;flex-direction:column;gap:12px;margin-top:22px}
  @media (min-width:768px){.form-actions{flex-direction:row;justify-content:flex-end;align-items:center}}
  .form-note{font-size:12px;color:var(--muted)}
  .form-success{
    display:none;
    margin-top:24px;padding:22px;
    border-radius:var(--r-md);
    background:var(--primary-soft);
    border:1px solid rgba(18,137,122,.32);
    color:var(--primary-dark);
    font-size:15px;line-height:1.8;
  }
  .form-success strong{display:block;font-size:17px;margin-bottom:6px}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#CFE0DC;padding:60px 0 28px;margin-top:20px}
  .footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px}}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px}
  .footer-brand .brand-mark{background:var(--brand-gradient)}
  .site-footer p{margin-top:14px;font-size:14px;line-height:1.8;color:#A9C4BF;max-width:360px}
  .site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
  .footer-links{display:grid;gap:10px}
  .footer-links a{font-size:14px;color:#B9CFCB;transition:color .2s ease}
  .footer-links a:hover{color:var(--accent)}
  .footer-bottom{
    margin-top:40px;padding-top:20px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:#8FADA8;
  }

/* roulang page: category5 */
:root{
    --primary:#12897A;
    --primary-dark:#0A5F55;
    --primary-soft:#E4F1EE;
    --accent:#F0733F;
    --accent-soft:#FDEDE4;
    --ink:#0B3A38;
    --text:#17211F;
    --muted:#5C6B68;
    --paper:#F6F5F1;
    --card:#FFFFFF;
    --line:#E4E6E2;
    --radius-lg:24px;
    --radius-md:18px;
    --radius-sm:14px;
    --shadow-1:0 1px 2px rgba(11,58,56,.06), 0 14px 34px -14px rgba(11,58,56,.20);
    --shadow-2:0 18px 40px -12px rgba(11,58,56,.28);
    --grad-brand:linear-gradient(135deg,#12897A 0%,#2FB39C 55%,#F0733F 100%);
    --grad-btn:linear-gradient(135deg,#12897A 0%,#0A5F55 100%);
  }

  *,*::before,*::after{box-sizing:border-box;}

  html{scroll-behavior:smooth;}

  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }

  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;}
  h1,h2,h3,h4,p{margin:0;}
  svg{display:block;}

  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:640px){ .container{padding-left:32px;padding-right:32px;} }
  @media (min-width:1024px){ .container{padding-left:40px;padding-right:40px;} }

  .num{font-variant-numeric:tabular-nums;}

  /* ---------------- Header / Nav ---------------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    padding:12px 0;
    transition:padding .25s ease;
  }
  .site-header.is-scrolled{padding-top:6px;}

  .header-shell{
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border:1px solid var(--line);
    border-radius:24px;
    box-shadow:var(--shadow-1);
    transition:box-shadow .25s ease, background .25s ease;
  }
  .header-shell:hover{box-shadow:var(--shadow-2);}

  .header-inner{
    display:flex;
    align-items:center;
    gap:16px;
    padding:10px 16px;
  }
  @media (min-width:1024px){ .header-inner{padding:10px 20px;gap:20px;} }

  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:16px;
    letter-spacing:-0.01em;
    color:var(--ink);
    white-space:nowrap;
    flex:0 0 auto;
  }
  .brand-mark{
    width:36px;
    height:36px;
    border-radius:12px;
    background:var(--grad-btn);
    display:grid;
    place-items:center;
    color:#fff;
    flex:0 0 auto;
    box-shadow:0 8px 18px -10px rgba(10,95,85,.8);
  }
  .brand-mark svg{width:21px;height:21px;}

  .nav-cards{
    display:none;
    align-items:center;
    gap:8px;
    flex:1 1 auto;
    justify-content:center;
    flex-wrap:wrap;
  }
  @media (min-width:1024px){ .nav-cards{display:flex;} }

  .nav-card{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:9px 13px;
    min-height:44px;
    border-radius:14px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--muted);
    font-size:14px;
    font-weight:500;
    white-space:nowrap;
    transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease, color .2s ease, background .2s ease;
  }
  .nav-card svg{
    width:19px;
    height:19px;
    stroke:currentColor;
    fill:none;
    flex:0 0 auto;
  }
  .nav-card:hover{
    transform:translateY(-2px);
    border-color:var(--primary);
    color:var(--primary-dark);
    box-shadow:var(--shadow-1);
  }
  .nav-card.active{
    background:var(--primary-soft);
    border-color:#BFDCD6;
    color:var(--primary-dark);
    font-weight:700;
  }
  .nav-card.active::after{
    content:"";
    position:absolute;
    left:12px;
    right:12px;
    bottom:-1px;
    height:3px;
    border-radius:3px;
    background:var(--grad-btn);
  }

  .header-cta{display:none;flex:0 0 auto;}
  @media (min-width:1024px){ .header-cta{display:block;} }

  .nav-toggle{
    display:inline-flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:5px;
    width:44px;
    height:44px;
    border-radius:14px;
    border:1px solid var(--line);
    background:#fff;
    margin-left:auto;
    cursor:pointer;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .nav-toggle span{
    display:block;
    width:18px;
    height:2px;
    border-radius:2px;
    background:var(--ink);
    transition:transform .2s ease, opacity .2s ease;
  }
  .nav-toggle:hover{border-color:var(--primary);box-shadow:var(--shadow-1);}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  @media (min-width:1024px){ .nav-toggle{display:none;} }

  .mobile-nav{
    padding:12px 16px 16px;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
    border-top:1px solid var(--line);
    margin-top:10px;
  }
  .mobile-nav[hidden]{display:none;}
  .mobile-nav .nav-card{
    justify-content:flex-start;
    width:100%;
    font-size:14px;
    padding:12px 12px;
  }
  @media (min-width:640px){ .mobile-nav{grid-template-columns:repeat(3,minmax(0,1fr));} }
  @media (min-width:1024px){ .mobile-nav{display:none !important;} }

  /* ---------------- Buttons ---------------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:48px;
    padding:0 22px;
    border-radius:14px;
    font-size:15px;
    font-weight:700;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    white-space:nowrap;
  }
  .btn svg{width:18px;height:18px;stroke:currentColor;fill:none;}
  .btn-primary{
    background:var(--grad-btn);
    color:#fff;
    box-shadow:0 10px 24px -14px rgba(10,95,85,.95);
  }
  .btn-primary:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(-1px);}
  .btn-outline{
    background:#fff;
    color:var(--primary-dark);
    border-color:#BFDCD6;
  }
  .btn-outline:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow-1);}
  .btn-ghost{
    background:transparent;
    color:var(--primary-dark);
    padding:0 12px;
  }
  .btn-ghost:hover{background:var(--primary-soft);}
  .btn-sm{min-height:42px;padding:0 16px;font-size:14px;border-radius:12px;}

  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--primary-dark);
    font-weight:700;
    font-size:14px;
  }
  .text-link svg{width:16px;height:16px;stroke:currentColor;fill:none;transition:transform .2s ease;}
  .text-link:hover svg{transform:translateX(3px);}

  /* ---------------- Sections ---------------- */
  .section{padding:64px 0;}
  @media (min-width:768px){ .section{padding:88px 0;} }
  @media (min-width:1024px){ .section{padding:112px 0;} }

  .section-head{max-width:720px;margin-bottom:32px;}
  .section-head h2{
    font-size:clamp(22px,2.6vw,34px);
    line-height:1.3;
    font-weight:700;
    letter-spacing:-0.01em;
    color:var(--ink);
  }
  .section-head p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    border-radius:999px;
    background:var(--primary-soft);
    color:var(--primary-dark);
    font-size:13px;
    font-weight:700;
    letter-spacing:.02em;
    margin-bottom:16px;
  }
  .eyebrow svg{width:15px;height:15px;stroke:currentColor;fill:none;}

  /* ---------------- Hero ---------------- */
  .hero{padding:40px 0 8px;}
  @media (min-width:1024px){ .hero{padding:56px 0 16px;} }

  .hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
  }
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:0.95fr 1.05fr;gap:48px;}
  }

  .hero-media{position:relative;}
  .hero-media img{
    width:100%;
    height:280px;
    object-fit:cover;
    border-radius:var(--radius-lg);
    background:var(--primary-soft);
    box-shadow:var(--shadow-1);
  }
  @media (min-width:768px){ .hero-media img{height:380px;} }
  @media (min-width:1024px){ .hero-media img{height:440px;} }

  .hero-float{
    position:absolute;
    left:18px;
    bottom:18px;
    right:18px;
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:14px 16px;
    display:flex;
    gap:16px;
    align-items:center;
    box-shadow:var(--shadow-1);
  }
  @media (min-width:768px){ .hero-float{right:auto;max-width:320px;} }
  .hero-float strong{display:block;font-size:20px;font-weight:800;color:var(--ink);line-height:1.2;}
  .hero-float span{font-size:12px;color:var(--muted);}
  .hero-float .spark{
    width:44px;height:44px;border-radius:14px;
    background:var(--accent-soft);
    display:grid;place-items:center;color:var(--accent);flex:0 0 auto;
  }
  .hero-float .spark svg{width:22px;height:22px;stroke:currentColor;fill:none;}

  .hero-copy h1{
    font-size:clamp(30px,4.4vw,54px);
    line-height:1.15;
    font-weight:800;
    letter-spacing:-0.01em;
    color:var(--ink);
    margin-top:6px;
  }
  .hero-sub{
    margin-top:14px;
    font-size:clamp(17px,2vw,20px);
    font-weight:500;
    color:var(--primary-dark);
  }
  .hero-text{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;max-width:560px;}

  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .hero-actions .btn{flex:1 1 auto;}
  @media (min-width:640px){ .hero-actions .btn{flex:0 0 auto;} }

  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:8px 14px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--line);
    color:var(--muted);
    font-size:13px;
    box-shadow:0 1px 2px rgba(11,58,56,.04);
    transition:transform .2s ease, box-shadow .2s ease;
  }
  .badge:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);}
  .badge svg{width:16px;height:16px;stroke:var(--primary);fill:none;flex:0 0 auto;}
  .badge b{color:var(--ink);font-weight:800;}

  /* ---------------- Quick cards ---------------- */
  .quick-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
  }
  @media (min-width:640px){ .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .quick-grid{grid-template-columns:repeat(4,minmax(0,1fr));} }

  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-1);
    transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}

  .quick-card{padding:24px 22px;display:flex;flex-direction:column;gap:12px;}
  .quick-icon{
    width:46px;height:46px;border-radius:14px;
    display:grid;place-items:center;
    background:var(--primary-soft);
    color:var(--primary-dark);
  }
  .quick-icon svg{width:23px;height:23px;stroke:currentColor;fill:none;}
  .quick-card h3{font-size:18px;font-weight:700;color:var(--ink);}
  .quick-card p{font-size:14px;line-height:1.7;color:var(--muted);}
  .quick-card .text-link{margin-top:auto;padding-top:6px;}

  /* ---------------- Intro paragraphs ---------------- */
  .intro-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
  }
  @media (min-width:1024px){ .intro-grid{grid-template-columns:1.25fr 0.75fr;gap:56px;align-items:start;} }

  .intro-copy p{color:var(--muted);font-size:16px;line-height:1.9;}
  .intro-copy p + p{margin-top:18px;}
  .intro-copy strong{color:var(--ink);font-weight:700;}

  .stat-panel{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:26px 24px;
    box-shadow:var(--shadow-1);
  }
  .stat-panel h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:18px;}
  .stat-row{
    display:flex;
    align-items:baseline;
    gap:10px;
    padding:14px 0;
    border-top:1px solid var(--line);
  }
  .stat-row:first-of-type{border-top:0;padding-top:0;}
  .stat-row .value{
    font-size:clamp(24px,3vw,32px);
    font-weight:800;
    color:var(--primary-dark);
    line-height:1;
  }
  .stat-row .unit{font-size:13px;color:var(--muted);font-weight:500;}
  .stat-row .desc{margin-left:auto;font-size:13px;color:var(--muted);text-align:right;}

  /* ---------------- FAQ ---------------- */
  .faq-anchors{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:28px;
  }
  .anchor-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:10px 16px;
    min-height:44px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--line);
    color:var(--primary-dark);
    font-size:14px;
    font-weight:700;
    transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .anchor-chip:hover{
    transform:translateY(-2px);
    border-color:var(--primary);
    background:var(--primary-soft);
    box-shadow:var(--shadow-1);
  }
  .anchor-chip svg{width:16px;height:16px;stroke:currentColor;fill:none;}

  .faq-group{margin-top:44px;}
  .faq-group:first-of-type{margin-top:0;}
  .faq-group-head{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:18px;
  }
  .faq-group-head .dot{
    width:10px;height:10px;border-radius:999px;
    background:var(--grad-brand);
    flex:0 0 auto;
  }
  .faq-group-head h3{font-size:20px;font-weight:700;color:var(--ink);}
  .faq-group-head span{margin-left:auto;font-size:13px;color:var(--muted);}

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

  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    box-shadow:0 1px 2px rgba(11,58,56,.05);
    overflow:hidden;
    transition:border-color .25s ease, box-shadow .25s ease, transform .25s ease;
  }
  .faq-item:hover{border-color:#BFDCD6;box-shadow:var(--shadow-1);}
  .faq-item[open]{border-color:#BFDCD6;box-shadow:var(--shadow-1);}

  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:flex-start;
    gap:14px;
    padding:20px 20px;
    font-size:16px;
    font-weight:700;
    color:var(--ink);
    line-height:1.6;
    min-height:44px;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::marker{content:"";}
  .faq-item summary .q-mark{
    width:26px;height:26px;border-radius:999px;
    background:var(--primary-soft);
    color:var(--primary-dark);
    display:grid;place-items:center;
    font-size:13px;font-weight:800;
    flex:0 0 auto;
    margin-top:1px;
  }
  .faq-item summary .chev{
    margin-left:auto;
    flex:0 0 auto;
    color:var(--muted);
    transition:transform .25s ease, color .25s ease;
    margin-top:4px;
  }
  .faq-item summary .chev svg{width:18px;height:18px;stroke:currentColor;fill:none;}
  .faq-item[open] summary .chev{transform:rotate(180deg);color:var(--primary);}

  .faq-body{
    padding:0 20px 20px 60px;
    font-size:15px;
    line-height:1.8;
    color:var(--muted);
  }
  .faq-body p + p{margin-top:12px;}
  .faq-body ul{margin-top:10px;display:grid;gap:8px;}
  .faq-body li{
    position:relative;
    padding-left:16px;
    font-size:14px;
  }
  .faq-body li::before{
    content:"";
    position:absolute;
    left:0;
    top:10px;
    width:6px;height:6px;
    border-radius:999px;
    background:var(--primary);
  }

  /* ---------------- Check list ---------------- */
  .check-wrap{
    background:linear-gradient(135deg,#FFFFFF 0%,#F2F8F6 100%);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:32px 24px;
    box-shadow:var(--shadow-1);
  }
  @media (min-width:768px){ .check-wrap{padding:44px 40px;} }

  .check-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    margin-top:28px;
  }
  @media (min-width:640px){ .check-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .check-grid{grid-template-columns:repeat(4,minmax(0,1fr));} }

  .check-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:22px 20px;
    transition:transform .25s ease, box-shadow .25s ease;
  }
  .check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);}
  .check-index{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:34px;height:34px;
    border-radius:12px;
    background:var(--primary-soft);
    color:var(--primary-dark);
    font-weight:800;
    font-size:14px;
    margin-bottom:12px;
  }
  .check-card h4{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px;}
  .check-card p{font-size:14px;line-height:1.7;color:var(--muted);}

  /* ---------------- Form ---------------- */
  .request-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-1);
    padding:32px 24px;
    position:relative;
    overflow:hidden;
  }
  @media (min-width:768px){ .request-card{padding:44px 40px;} }
  .request-card::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:4px;
    background:var(--grad-brand);
  }

  .form-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    margin-top:26px;
  }
  @media (min-width:768px){ .form-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }

  .field{display:flex;flex-direction:column;gap:8px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:14px;font-weight:700;color:var(--ink);}
  .field .hint{font-size:12px;color:var(--muted);}

  .input,.textarea,.select{
    width:100%;
    min-height:48px;
    padding:12px 14px;
    border-radius:14px;
    border:1px solid var(--line);
    background:#FCFDFC;
    font-size:15px;
    color:var(--text);
    transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .textarea{min-height:110px;resize:vertical;line-height:1.7;}
  .input::placeholder,.textarea::placeholder{color:#9AA8A5;}
  .input:focus,.textarea:focus,.select:focus{
    outline:none;
    border-color:var(--primary);
    background:#fff;
    box-shadow:0 0 0 3px rgba(18,137,122,.18);
  }

  .pill-group{display:flex;flex-wrap:wrap;gap:10px;}
  .pill-group input{position:absolute;opacity:0;width:0;height:0;}
  .pill-group label{
    display:inline-flex;
    align-items:center;
    min-height:44px;
    padding:8px 16px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--muted);
    font-size:14px;
    font-weight:500;
    cursor:pointer;
    transition:all .2s ease;
  }
  .pill-group label:hover{border-color:var(--primary);color:var(--primary-dark);}
  .pill-group input:checked + label{
    background:var(--primary-soft);
    border-color:var(--primary);
    color:var(--primary-dark);
    font-weight:700;
  }
  .pill-group input:focus-visible + label{outline:2px solid var(--primary);outline-offset:2px;}

  .form-actions{
    margin-top:24px;
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  @media (min-width:768px){
    .form-actions{flex-direction:row;align-items:center;justify-content:flex-end;}
  }
  .form-actions .btn{width:100%;}
  @media (min-width:768px){ .form-actions .btn{width:auto;} }
  .form-notes{font-size:13px;color:var(--muted);margin-right:auto;}

  .form-success{
    margin-top:26px;
    background:var(--primary-soft);
    border:1px solid #BFDCD6;
    border-radius:var(--radius-md);
    padding:26px 22px;
    display:flex;
    gap:16px;
    align-items:flex-start;
  }
  .form-success[hidden]{display:none;}
  .form-success .ok-icon{
    width:44px;height:44px;border-radius:14px;
    background:#fff;
    display:grid;place-items:center;
    color:var(--primary-dark);
    flex:0 0 auto;
  }
  .form-success .ok-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;}
  .form-success h3{font-size:17px;font-weight:700;color:var(--ink);}
  .form-success p{font-size:14px;color:var(--muted);margin-top:6px;line-height:1.75;}

  /* ---------------- Footer ---------------- */
  .site-footer{
    background:var(--ink);
    color:#CFE3DF;
    margin-top:24px;
    padding:64px 0 28px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
  }
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;} }

  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    color:#fff;
    font-size:17px;
    font-weight:800;
    margin-bottom:14px;
  }
  .footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#7FD6C8;box-shadow:none;}
  .site-footer p{font-size:14px;line-height:1.8;color:#A9C6C1;max-width:340px;}

  .site-footer h4{
    font-size:14px;
    font-weight:700;
    color:#fff;
    margin-bottom:14px;
    letter-spacing:.02em;
  }
  .footer-links{list-style:none;display:grid;gap:10px;}
  .footer-links a{
    font-size:14px;
    color:#A9C6C1;
    transition:color .2s ease;
  }
  .footer-links a:hover{color:var(--accent);}

  .footer-bottom{
    margin-top:44px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    justify-content:space-between;
    font-size:13px;
    color:#8FB0AB;
  }

  /* ---------------- Misc ---------------- */
  .divider{height:1px;background:var(--line);border:0;margin:0;}
  ::selection{background:var(--primary-soft);color:var(--primary-dark);}