/* roulang page: index */
:root{
    --brand:#0B6E6E; --brand-dark:#074B4B; --brand-light:#E6F2F1; --brand-xlight:#F1F8F7;
    --accent:#E07A3F; --accent-light:#FDEDE3;
    --ink:#101820; --ink-2:#4A5560; --ink-3:#8A939B;
    --line:#E3DED6; --line-2:#EFEAE3;
    --paper:#F8F5F0; --white:#ffffff; --deep:#0B2B2A;
    --ok:#2F8F5B; --err:#B42318;
    --r-sm:10px; --r-md:18px; --r-lg:24px; --r-pill:999px;
    --sh-1:0 1px 2px rgba(16,24,32,.05);
    --sh-2:0 8px 22px rgba(11,43,42,.07);
    --sh-3:0 20px 44px rgba(11,43,42,.11);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:17px;line-height:1.9;letter-spacing:0;
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  input{font:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
  h1{font-size:46px;line-height:1.25;font-weight:800;}
  h2{font-size:34px;line-height:1.3;font-weight:800;}
  h3{font-size:22px;line-height:1.4;font-weight:600;}
  p{margin:0 0 1.2em;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
  ::selection{background:var(--brand-light);}

  .container{max-width:1200px;margin:0 auto;padding:0 24px;}
  .section{padding:92px 0;}
  .section-sm{padding:64px 0;}
  .section-line{border-top:1px solid var(--line-2);}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;font-weight:600;color:var(--brand);letter-spacing:.06em;
  }
  .eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px;}
  .lead{color:var(--ink-2);font-size:17px;max-width:780px;}

  /* ============ 顶部细条 ============ */
  .topbar{background:var(--deep);color:#D7E5E3;font-size:14px;}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:34px;gap:16px;}
  .topbar a{color:#BFD9D6;transition:color .18s var(--ease);}
  .topbar a:hover{color:#fff;}
  .topbar-links{display:flex;align-items:center;gap:20px;}
  .topbar-close{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#8FB2AF;}
  .topbar-close:hover{background:rgba(255,255,255,.1);color:#fff;}

  /* ============ 卡片化导航 ============ */
  .site-header{position:sticky;top:0;z-index:60;padding:14px 0;transition:padding .2s var(--ease);}
  .site-header.scrolled{padding:8px 0;}
  .nav-panel{
    display:flex;align-items:center;gap:18px;
    background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
    border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-2);padding:12px 20px;min-height:80px;
    transition:box-shadow .2s var(--ease),min-height .2s var(--ease);
  }
  .site-header.scrolled .nav-panel{box-shadow:var(--sh-3);min-height:68px;background:#fff;}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;flex-shrink:0;
    background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
    color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;
    letter-spacing:-.02em;
  }
  .logo-text{font-weight:800;font-size:18px;letter-spacing:-.01em;white-space:nowrap;}
  .nav-cards{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1;}
  .nav-card{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 13px;border-radius:12px;font-size:15px;font-weight:600;color:var(--ink-2);
    border:1px solid transparent;
    transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
    white-space:nowrap;
  }
  .nav-card svg{width:18px;height:18px;flex-shrink:0;opacity:.85;}
  .nav-card:hover{background:var(--brand-light);color:var(--brand-dark);}
  .nav-card.active{color:var(--brand-dark);background:var(--brand-xlight);border-color:#CDE4E2;box-shadow:inset 0 -2px 0 var(--brand);}
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    align-items:center;justify-content:center;flex-direction:column;gap:4px;background:#fff;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
  .nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .drawer{
    display:none;position:fixed;inset:0;top:0;z-index:55;background:rgba(11,43,42,.45);
    opacity:0;pointer-events:none;transition:opacity .2s var(--ease);
  }
  .drawer.open{opacity:1;pointer-events:auto;}
  .drawer-panel{
    position:absolute;top:0;left:0;right:0;background:var(--paper);
    border-radius:0 0 24px 24px;padding:88px 20px 24px;
    transform:translateY(-14px);transition:transform .22s var(--ease);
    max-height:100vh;overflow-y:auto;
  }
  .drawer.open .drawer-panel{transform:translateY(0);}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .drawer-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 14px;
    display:flex;flex-direction:column;gap:8px;font-weight:600;font-size:15px;
  }
  .drawer-card svg{width:20px;height:20px;color:var(--brand);}
  .drawer-card.active{border-color:var(--brand);background:var(--brand-xlight);color:var(--brand-dark);}
  .drawer-cta{margin-top:16px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
  .btn-ghost{background:transparent;color:var(--brand-dark);border:1px solid var(--brand);}
  .btn-ghost:hover{background:var(--brand-light);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(224,122,63,.24);}
  .btn-accent:hover{background:#C9682F;transform:translateY(-1px);}
  .btn-accent:active{transform:translateY(1px);}
  .btn-sm{height:40px;padding:0 16px;font-size:14px;}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-dark);font-weight:600;font-size:15px;}
  .link-arrow span{transition:transform .18s var(--ease);}
  .link-arrow:hover span{transform:translateX(3px);}

  /* ============ 通用卡片 / 标签 ============ */
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:24px;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .card:hover{border-color:rgba(11,110,110,.32);transform:translateY(-4px);box-shadow:var(--sh-2);}
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
    background:var(--brand-light);color:var(--brand-dark);border-radius:var(--r-pill);
    font-size:13px;font-weight:600;line-height:1;
  }
  .badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
  .chip{
    display:inline-flex;align-items:center;height:32px;padding:0 14px;
    border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;
    font-size:14px;font-weight:600;color:var(--ink-2);
    transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  }
  .chip:hover{background:var(--brand);border-color:var(--brand);color:#fff;}
  .icon-box{
    width:44px;height:44px;border-radius:12px;background:var(--brand-light);
    display:flex;align-items:center;justify-content:center;color:var(--brand-dark);flex-shrink:0;
  }
  .icon-box svg{width:22px;height:22px;}

  /* ============ Hero ============ */
  .hero{padding:56px 0 64px;}
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
  .hero h1{margin:18px 0 20px;}
  .hero-sub{color:var(--ink-2);font-size:18px;max-width:520px;margin-bottom:28px;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
  .trust-row{display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;border-top:1px solid var(--line-2);}
  .trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);font-weight:600;}
  .trust-item svg{width:18px;height:18px;color:var(--brand);}
  .hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);}
  .hero-visual img{width:100%;height:420px;object-fit:cover;background:var(--brand-light);}
  .hero-visual::after{
    content:"";position:absolute;right:14px;bottom:14px;width:120px;height:90px;
    background-image:radial-gradient(rgba(255,255,255,.85) 1.2px,transparent 1.2px);
    background-size:12px 12px;opacity:.35;border-radius:10px;pointer-events:none;
  }
  .hero-tag{
    position:absolute;left:18px;top:18px;background:rgba(255,255,255,.94);
    border-radius:var(--r-pill);padding:8px 16px;font-size:14px;font-weight:600;color:var(--brand-dark);
    box-shadow:var(--sh-1);
  }

  /* ============ 主张三卡带 ============ */
  .claim-grid{display:grid;grid-template-columns:6fr 3fr 3fr;gap:20px;}
  .claim-main{
    background:linear-gradient(155deg,var(--brand-dark) 0%,var(--deep) 100%);
    border-radius:var(--r-lg);padding:34px;color:#EAF4F3;position:relative;overflow:hidden;
    border:1px solid rgba(255,255,255,.08);
  }
  .claim-main h3{color:#fff;font-size:24px;margin-bottom:12px;font-weight:700;}
  .claim-main p{color:#B7CFCD;font-size:16px;margin-bottom:0;max-width:420px;}
  .claim-main .icon-box{background:rgba(255,255,255,.1);color:#8FD3CE;margin-bottom:18px;}
  .claim-main::after{
    content:"";position:absolute;right:-20px;bottom:-20px;width:180px;height:160px;
    background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
    background-size:14px 14px;opacity:.09;
  }
  .claim-side{display:flex;flex-direction:column;justify-content:space-between;gap:14px;}
  .claim-side h3{font-size:19px;margin:14px 0 8px;}
  .claim-side p{color:var(--ink-2);font-size:15px;margin:0;}

  /* ============ 品牌故事 ============ */
  .story-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
  .story-media{position:relative;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2);}
  .story-media img{width:100%;height:380px;object-fit:cover;background:var(--brand-light);}
  .story-index{
    position:absolute;left:16px;top:16px;background:#fff;border-radius:var(--r-sm);
    padding:6px 14px;font-size:14px;font-weight:700;color:var(--brand-dark);box-shadow:var(--sh-1);
  }
  .story-text h2{margin:16px 0 18px;}
  .story-text p{color:var(--ink-2);max-width:640px;}
  .points{list-style:none;padding:0;margin:22px 0 26px;display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;}
  .points li{display:flex;align-items:flex-start;gap:10px;font-size:16px;color:var(--ink-2);}
  .points li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand);margin-top:12px;flex-shrink:0;}

  /* ============ 精选内容卡 ============ */
  .feature-row{display:grid;grid-template-columns:7fr 5fr;gap:20px;margin-bottom:20px;}
  .feature-wide{
    display:grid;grid-template-columns:1fr 1fr;gap:0;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-md);overflow:hidden;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .feature-wide:hover{border-color:rgba(11,110,110,.32);transform:translateY(-4px);box-shadow:var(--sh-2);}
  .feature-wide img{width:100%;height:100%;min-height:260px;object-fit:cover;background:var(--brand-light);}
  .feature-wide-body{padding:30px;display:flex;flex-direction:column;justify-content:center;}
  .feature-wide-body h3{font-size:23px;margin:14px 0 10px;}
  .feature-wide-body p{color:var(--ink-2);font-size:16px;margin-bottom:18px;}
  .feature-tall{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
    display:flex;flex-direction:column;padding:28px;
    transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .feature-tall:hover{border-color:rgba(11,110,110,.32);transform:translateY(-4px);box-shadow:var(--sh-2);}
  .feature-tall img{width:100%;height:170px;object-fit:cover;border-radius:12px;margin-bottom:20px;background:var(--brand-light);}
  .feature-tall h3{font-size:20px;margin:12px 0 10px;}
  .feature-tall p{color:var(--ink-2);font-size:15px;margin-bottom:18px;}
  .feature-tall .link-arrow{margin-top:auto;}
  .feature-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .feature-small{display:flex;flex-direction:column;}
  .feature-small h3{font-size:19px;margin:14px 0 8px;}
  .feature-small p{color:var(--ink-2);font-size:15px;margin-bottom:16px;}
  .feature-small .link-arrow{margin-top:auto;}

  /* ============ 最新信息列表 ============ */
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;}
  .section-head h2{margin-top:12px;}
  .head-tools{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
  .news-list{display:flex;flex-direction:column;gap:14px;}
  .news-item{
    display:grid;grid-template-columns:160px 1fr auto;gap:22px;align-items:center;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 20px 16px 16px;
    position:relative;transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
  }
  .news-item::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:0;border-radius:0 3px 3px 0;
    background:var(--brand);transition:width .18s var(--ease);
  }
  .news-item:hover{background:var(--brand-xlight);border-color:rgba(11,110,110,.28);}
  .news-item:hover::before{width:3px;}
  .news-thumb{width:160px;height:108px;border-radius:12px;overflow:hidden;background:var(--brand-light);}
  .news-thumb img{width:100%;height:100%;object-fit:cover;}
  .news-body h3{font-size:19px;margin-bottom:8px;}
  .news-body p{color:var(--ink-2);font-size:15px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--ink-3);}
  .news-arrow{color:var(--brand);font-size:20px;transition:transform .18s var(--ease);}
  .news-item:hover .news-arrow{transform:translateX(4px);}
  .empty-state{
    border:1px dashed var(--line);border-radius:var(--r-md);background:#fff;
    padding:52px 24px;text-align:center;
  }
  .empty-state .icon-box{margin:0 auto 16px;background:var(--brand-xlight);}
  .empty-state p{color:var(--ink-3);margin-bottom:18px;}
  .section-foot{display:flex;justify-content:center;margin-top:32px;}

  /* ============ 信任背书 ============ */
  .logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:56px;}
  .logo-cell{
    border:1px solid var(--line);border-radius:14px;background:#fff;height:74px;
    display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:15px;color:var(--ink-3);filter:grayscale(1);
    transition:color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  }
  .logo-cell:hover{color:var(--brand);border-color:rgba(11,110,110,.32);filter:grayscale(0);}
  .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .quote{position:relative;padding-top:44px;}
  .quote::before{
    content:"“";position:absolute;left:24px;top:6px;font-size:64px;line-height:1;
    color:var(--brand-light);font-family:Georgia,serif;
  }
  .quote p{font-size:16px;color:var(--ink-2);}
  .quote-who{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-2);}
  .quote-avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-light);color:var(--brand-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;}
  .quote-who strong{display:block;font-size:15px;}
  .quote-who span{font-size:13px;color:var(--ink-3);}
  .cert-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px;}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:820px;margin:0 auto;}
  .faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:12px;position:relative;overflow:hidden;transition:border-color .18s var(--ease);}
  .faq-item[open]{border-color:rgba(11,110,110,.35);}
  .faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:0;background:var(--brand);transition:width .18s var(--ease);}
  .faq-item[open]::before{width:3px;}
  .faq-item summary{
    list-style:none;cursor:pointer;padding:20px 56px 20px 24px;font-size:17px;font-weight:600;
    position:relative;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
    font-size:22px;font-weight:400;color:var(--brand);transition:transform .2s var(--ease);
  }
  .faq-item[open] summary::after{content:"−";}
  .faq-body{padding:0 56px 22px 24px;font-size:16px;line-height:1.8;color:var(--ink-2);}
  .faq-body p:last-child{margin-bottom:0;}

  /* ============ 订阅 CTA ============ */
  .cta-panel{
    background:var(--deep);border-radius:var(--r-lg);padding:52px 48px;color:#EAF4F3;
    display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
    border:1px solid rgba(255,255,255,.08);position:relative;overflow:hidden;
  }
  .cta-panel::after{
    content:"";position:absolute;right:-40px;top:-30px;width:240px;height:220px;
    background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
    background-size:14px 14px;opacity:.08;pointer-events:none;
  }
  .cta-panel h2{color:#fff;margin:14px 0 14px;}
  .cta-panel p{color:#B7CFCD;font-size:16px;margin-bottom:0;}
  .cta-form{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
  .cta-form input{
    flex:1 1 240px;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);padding:0 16px;color:#fff;font-size:15px;
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .cta-form input::placeholder{color:#8FB2AF;}
  .cta-form input:focus{outline:none;border-color:#4FBDB6;box-shadow:0 0 0 3px rgba(79,189,182,.22);}
  .cta-form input.err{border-color:#F08A82;box-shadow:0 0 0 3px rgba(240,138,130,.18);}
  .cta-note{font-size:13px;color:#8FB2AF;margin-top:14px;width:100%;}
  .cta-msg{width:100%;font-size:14px;margin-top:4px;display:none;}
  .cta-msg.show{display:block;}
  .cta-msg.ok{color:#8FE0B0;}
  .cta-msg.error{color:#F5A9A2;}
  .btn-loading{opacity:.75;pointer-events:none;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--deep);color:#9FBFBC;margin-top:92px;padding:64px 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
  .footer-brand .logo-text{color:#fff;}
  .footer-brand p{font-size:15px;color:#8FB2AF;margin:16px 0 20px;max-width:280px;}
  .footer-social{display:flex;gap:10px;}
  .footer-social a{
    width:38px;height:38px;border-radius:12px;border:1px solid rgba(255,255,255,.14);
    display:flex;align-items:center;justify-content:center;color:#9FBFBC;
    transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  }
  .footer-social a:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.28);}
  .footer-social svg{width:18px;height:18px;}
  .footer-col h4{font-size:14px;color:rgba(255,255,255,.55);font-weight:600;margin-bottom:18px;letter-spacing:.04em;}
  .footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
  .footer-col a{font-size:15px;color:#BFD9D6;transition:color .18s var(--ease);}
  .footer-col a:hover{color:#7FE0D8;}
  .footer-col li{font-size:15px;color:#BFD9D6;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:14px;color:#8FB2AF;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-cards{display:none;}
    .nav-toggle{display:flex;}
    .nav-actions .btn-ghost{display:none;}
    .drawer{display:block;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .hero-visual img{height:320px;}
    .claim-grid{grid-template-columns:1fr 1fr;}
    .claim-main{grid-column:1 / -1;}
    .story-grid{grid-template-columns:1fr;gap:32px;}
    .story-media img{height:300px;}
    .feature-row{grid-template-columns:1fr;}
    .feature-grid3{grid-template-columns:1fr 1fr;}
    .logos{grid-template-columns:repeat(3,1fr);}
    .quotes{grid-template-columns:1fr;gap:16px;}
    .cta-panel{grid-template-columns:1fr;padding:40px 32px;gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .section{padding:64px 0;}
    h1{font-size:38px;}
    h2{font-size:28px;}
  }
  @media (max-width:767px){
    body{font-size:16px;}
    .topbar{display:none;}
    .section{padding:52px 0;}
    .container{padding:0 20px;}
    h1{font-size:30px;}
    h2{font-size:24px;}
    h3{font-size:19px;}
    .hero{padding:32px 0 44px;}
    .hero-sub{font-size:16px;}
    .trust-row{gap:16px;}
    .claim-grid{grid-template-columns:1fr;gap:16px;}
    .points{grid-template-columns:1fr;}
    .feature-wide{grid-template-columns:1fr;}
    .feature-wide img{min-height:200px;height:200px;}
    .feature-grid3{grid-template-columns:1fr;}
    .logos{grid-template-columns:repeat(2,1fr);}
    .news-item{grid-template-columns:1fr;gap:14px;padding:16px;}
    .news-thumb{width:100%;height:auto;aspect-ratio:16/9;}
    .news-arrow{display:none;}
    .footer-grid{grid-template-columns:1fr;}
    .cta-panel{padding:32px 22px;}
    .cta-form{flex-direction:column;}
    .cta-form input,.cta-form .btn{width:100%;}
    .nav-panel{padding:10px 14px;min-height:66px;}
    .logo-text{font-size:16px;}
    .site-footer{margin-top:52px;padding-top:44px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
    .card:hover,.news-item:hover,.feature-wide:hover,.feature-tall:hover{transform:none;}
  }

/* roulang page: article */
:root{
  --brand:#0B6E6E;
  --brand-dark:#074B4B;
  --brand-light:#E6F2F1;
  --brand-xlight:#F1F8F7;
  --accent:#E07A3F;
  --accent-light:#FDEDE3;
  --success:#2F8F5B;
  --error:#B42318;
  --paper:#F8F5F0;
  --ink:#101820;
  --ink-soft:#4A5560;
  --ink-mute:#8A939B;
  --line:#E3DED6;
  --line-soft:#EFEAE3;
  --dark:#0B2B2A;
  --sh-1:0 1px 2px rgba(16,24,32,.05);
  --sh-2:0 8px 22px rgba(11,43,42,.07);
  --sh-3:0 20px 44px rgba(11,43,42,.11);
  --r-sm:10px; --r-md:18px; --r-lg:24px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,Inter,sans-serif;
  font-size:17px;line-height:1.9;letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0}
.skip-link:focus{left:16px;top:12px;z-index:99;background:#fff;border:1px solid var(--brand);border-radius:10px;padding:8px 14px}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:50;padding:12px 0 6px;transition:padding .2s var(--ease)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.95);border:1px solid var(--line);
  border-radius:24px;box-shadow:var(--sh-1);
  padding:0 20px;height:84px;
  transition:box-shadow .2s var(--ease),height .2s var(--ease),background .2s var(--ease);
  backdrop-filter:saturate(140%) blur(6px);
}
.site-header.scrolled .nav-panel{background:#fff;box-shadow:var(--sh-2);height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);white-space:nowrap}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;letter-spacing:0;
}
.logo-text{letter-spacing:-.01em}
.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:14px;font-size:14.5px;color:var(--ink-soft);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-card svg{width:20px;height:20px;flex:none}
.nav-card:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px)}
.nav-card.active{background:var(--brand-light);color:var(--brand-dark);box-shadow:inset 3px 0 0 var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#C96A33;transform:translateY(-1px)}
.btn-outline{border-color:rgba(11,110,110,.45);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand-light);border-color:var(--brand)}
.btn-ghost{color:var(--ink-soft);background:transparent;border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:transparent}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:var(--brand-light);transform:translateY(-1px)}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.link-arrow svg{width:16px;height:16px;transition:transform .18s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ===== 抽屉导航 ===== */
.drawer{
  display:none;position:fixed;inset:0;z-index:80;background:var(--paper);
  flex-direction:column;padding:16px 20px 20px;overflow-y:auto;
}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:6px 0 18px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.drawer-close svg{width:20px;height:20px;stroke:var(--ink)}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:20px 0 0}
.drawer-card{
  display:flex;align-items:center;gap:10px;min-height:64px;padding:14px 16px;
  background:#fff;border:1px solid var(--line);border-radius:16px;font-size:15px;font-weight:600;color:var(--ink-soft);
}
.drawer-card.active{background:var(--brand-light);border-color:rgba(11,110,110,.4);color:var(--brand-dark)}
.drawer-foot{margin-top:auto;padding-top:24px;position:sticky;bottom:0}
body.drawer-open{overflow:hidden}

/* ===== 面包屑 ===== */
.crumb-bar{margin-top:22px}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-1);
  min-height:48px;padding:8px 18px;font-size:14px;color:var(--ink-mute);
}
.breadcrumb a{color:var(--ink-soft)}
.breadcrumb a:hover{color:var(--brand)}
.crumb-sep{color:var(--line)}
.crumb-current{color:var(--ink);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章头 ===== */
.article-hero{padding:40px 0 8px}
.article-head{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:36px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--sh-2);
  padding:34px 36px;
}
.badge{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-size:13px;font-weight:600;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.article-head h1{font-size:40px;line-height:1.28;font-weight:800;margin:16px 0 18px;letter-spacing:-.02em}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:14px;color:var(--ink-mute);border-top:1px solid var(--line-soft);padding-top:14px}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.article-head-figure{border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--brand-light)}
.article-head-figure img{width:100%;height:100%;min-height:210px;object-fit:cover}

/* ===== 正文布局 ===== */
.article-body-section{padding:44px 0 8px}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:36px;align-items:start}
.article-shell{background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--sh-1);padding:38px 40px}
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:#37414A}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink);margin:32px 0 12px}
.article-body ul{margin:0 0 1.2em;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin:9px 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:.78em;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.article-body ol{margin:0 0 1.2em;padding-left:1.5em;list-style:decimal}
.article-body ol li{margin:9px 0}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 14px 14px 0;color:var(--ink-soft);
}
.article-body img{border-radius:14px;margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-mute);text-align:center;margin-top:8px}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(11,110,110,.35)}
.article-body a:hover{color:var(--brand-dark);border-color:var(--brand-dark)}
.article-body code{
  background:#F2F6F5;padding:2px 6px;border-radius:6px;color:var(--brand-dark);font-size:.9em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:#F2F6F5;border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  overflow-x:auto;margin:26px 0;
}
.article-body pre code{background:none;padding:0;color:#25403F}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--line-soft);margin:32px 0}

/* ===== 空态 ===== */
.empty-state{
  border:1px dashed var(--line);border-radius:18px;background:var(--brand-xlight);
  padding:48px 24px;text-align:center;
}
.empty-state svg{width:40px;height:40px;margin:0 auto 14px;stroke:var(--brand);opacity:.75}
.empty-state h2{font-size:22px;font-weight:700;border:none;padding:0;margin:0 0 8px}
.empty-state p{color:var(--ink-soft);margin-bottom:20px;font-size:16px}

/* ===== 标签与分享 ===== */
.article-foot{margin-top:34px;border-top:1px solid var(--line-soft);padding-top:22px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-xlight);border:1px solid var(--line);color:var(--ink-soft);font-size:13.5px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.tag:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.share-group{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-mute)}
.share-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.share-btn svg{width:18px;height:18px;stroke:var(--ink-soft)}
.share-btn:hover{border-color:var(--brand);transform:translateY(-2px)}
.share-btn:hover svg{stroke:var(--brand)}

/* ===== 侧栏 ===== */
.article-side{display:flex;flex-direction:column;gap:18px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-1);padding:22px}
.side-title{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand)}
.side-list li + li{margin-top:10px}
.side-list a{display:flex;gap:8px;align-items:flex-start;font-size:14.5px;color:var(--ink-soft);line-height:1.6}
.side-list a:hover{color:var(--brand)}
.side-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-light);border:1px solid var(--brand);margin-top:9px;flex:none}
.side-card-cta{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--sh-2)}
.side-card-cta h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px}
.side-card-cta p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.86);margin-bottom:16px}

/* ===== 上下篇 ===== */
.postnav-section{padding:46px 0 0}
.postnav-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.postnav-card{
  display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.postnav-card:hover{transform:translateY(-4px);border-color:rgba(11,110,110,.35);box-shadow:var(--sh-2)}
.postnav-dir{font-size:13.5px;color:var(--ink-mute)}
.postnav-card strong{font-size:18px;font-weight:700}
.postnav-next{text-align:right;align-items:flex-end}

/* ===== 相关推荐 ===== */
.related-section{padding:56px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:24px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:800;line-height:1.3}
.section-head p{color:var(--ink-soft);font-size:15.5px;margin-top:6px}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(11,110,110,.35);box-shadow:var(--sh-2)}
.post-card figure{margin:0;aspect-ratio:16/10;background:var(--brand-light);overflow:hidden}
.post-card img{width:100%;height:100%;object-fit:cover;transition:transform .25s var(--ease)}
.post-card:hover img{transform:scale(1.04)}
.post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card-body h3{font-size:18px;font-weight:700;line-height:1.5}
.post-card-body p{font-size:14.5px;color:var(--ink-soft);line-height:1.75}
.post-card-body .link-arrow{margin-top:auto;font-size:14.5px}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-xlight);border:1px solid var(--line);color:var(--brand-dark);font-size:13px;font-weight:600;
  width:fit-content;
}

/* ===== FAQ ===== */
.faq-section{padding:56px 0 0}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .2s var(--ease)}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--brand),var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand);font-size:22px;line-height:1;transition:transform .2s var(--ease)}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 20px 18px;font-size:16px;line-height:1.8;color:var(--ink-soft)}

/* ===== CTA 订阅 ===== */
.cta-section{padding:64px 0 0}
.cta-panel{
  position:relative;overflow:hidden;background:var(--dark);border:1px solid rgba(255,255,255,.08);
  border-radius:24px;padding:44px 44px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:280px;height:280px;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:16px 16px;opacity:.5;pointer-events:none;
}
.cta-panel h2{font-size:30px;line-height:1.32;font-weight:800;color:#fff}
.cta-panel .cta-sub{color:rgba(241,248,247,.78);font-size:16px;margin-top:10px;line-height:1.8}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;height:48px;border-radius:999px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;padding:0 20px;font-size:15px;
}
.cta-form input::placeholder{color:rgba(241,248,247,.55)}
.cta-form input:focus{outline:none;border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(230,242,241,.25)}
.cta-note{font-size:13px;color:rgba(241,248,247,.6);margin-top:12px}
.form-msg{font-size:14px;margin-top:10px;display:none}
.form-msg.ok{display:block;color:#8FE0B6}
.form-msg.err{display:block;color:#FFB4A5}

/* ===== 页脚 ===== */
.site-footer{margin-top:80px;background:var(--dark);color:#F1F8F7;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:36px;padding-bottom:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{background:var(--brand-light);color:var(--brand-dark)}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(241,248,247,.72);margin-top:16px;max-width:34ch}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.14);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.footer-social svg{width:18px;height:18px;stroke:#F1F8F7}
.footer-social a:hover{background:rgba(255,255,255,.08);border-color:rgba(230,242,241,.5)}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(241,248,247,.62);margin-bottom:16px;letter-spacing:.02em}
.footer-col li{font-size:14.5px;color:rgba(241,248,247,.82);margin-bottom:10px;line-height:1.7}
.footer-col a:hover{color:#9FD6D0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(241,248,247,.55);
}

/* ===== 响应式 ===== */
@media (max-width:1180px){
  .nav-card{padding:8px 10px;font-size:14px}
}
@media (max-width:1023px){
  .nav-cards{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-panel{height:74px}
  .article-head{grid-template-columns:minmax(0,1fr);gap:24px;padding:28px 26px}
  .article-head h1{font-size:32px}
  .article-head-figure{order:-1}
  .article-head-figure img{min-height:180px;max-height:240px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-shell{padding:28px 24px}
  .article-side{position:static;order:2}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:34px 28px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 20px}
  .article-head h1{font-size:27px;letter-spacing:-.01em}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:19px}
  .section-head h2{font-size:24px}
  .cta-panel h2{font-size:24px}
  .card-grid-3{grid-template-columns:minmax(0,1fr)}
  .postnav-grid{grid-template-columns:minmax(0,1fr)}
  .postnav-next{text-align:left;align-items:flex-start}
  .article-foot{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .breadcrumb{font-size:13px}
  .crumb-current{max-width:100%}
}
@media (max-width:520px){
  .logo-text{font-size:16px}
  .article-shell{padding:24px 18px}
  .btn{height:44px;padding:0 18px}
  .cta-form input{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand:#0B6E6E;
  --brand-dark:#074B4B;
  --brand-light:#E6F2F1;
  --brand-xlight:#F1F8F7;
  --accent:#E07A3F;
  --accent-light:#FDEDE3;
  --paper:#F8F5F0;
  --ink:#101820;
  --ink-soft:#4A5560;
  --ink-mute:#8A939B;
  --line:#E3DED6;
  --line-soft:#EFEAE3;
  --deep:#0B2B2A;
  --r-s:10px;
  --r-m:18px;
  --r-l:24px;
  --sh-1:0 1px 2px rgba(16,24,32,.05);
  --sh-2:0 8px 22px rgba(11,43,42,.07);
  --sh-3:0 20px 44px rgba(11,43,42,.11);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 0;background:linear-gradient(180deg,rgba(248,245,240,.96),rgba(248,245,240,.6) 70%,rgba(248,245,240,0));}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  min-height:82px;padding:10px 20px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-2);
  transition:min-height .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.site-header.is-scrolled .nav-panel{min-height:74px;background:#fff;box-shadow:var(--sh-3);}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:18px;letter-spacing:-.02em;
  box-shadow:inset 0 -2px 0 rgba(0,0,0,.12);
}
.logo-text{font-weight:800;font-size:18px;color:var(--brand-dark);letter-spacing:-.01em;white-space:nowrap;}
.nav-cards{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 12px;border-radius:12px;
  font-size:14px;color:var(--ink-soft);
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-card svg{width:20px;height:20px;flex:0 0 20px;color:var(--brand);opacity:.85;}
.nav-card:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-card.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600;box-shadow:inset 0 -2px 0 var(--brand);}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:6px;}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:14px;
  background:#fff;border:1px solid var(--line);cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle span{display:block;width:19px;height:2px;border-radius:2px;background:var(--brand-dark);transition:transform .2s var(--ease);}
.nav-toggle:hover{background:var(--brand-light);border-color:var(--brand);}

.nav-drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--paper);
  padding:22px 20px 28px;
  display:none;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.nav-drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;font-size:22px;line-height:1;cursor:pointer;color:var(--brand-dark);
}
.drawer-close:hover{background:var(--brand-light);border-color:var(--brand);}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-card{
  display:flex;flex-direction:column;gap:10px;
  padding:16px 14px;border-radius:16px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  font-size:15px;font-weight:600;color:var(--brand-dark);
}
.drawer-card svg{width:22px;height:22px;color:var(--brand);}
.drawer-card.active{border-color:var(--brand);background:var(--brand-light);}
.drawer-cta{margin-top:auto;padding-top:16px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#C96A33;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-dark);}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand-dark);}
.btn-outline:hover{background:var(--brand-light);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.link-arrow svg{width:18px;height:18px;transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);text-transform:none;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);}
h1{font-size:46px;line-height:1.25;font-weight:800;color:var(--ink);}
h2{font-size:34px;line-height:1.3;font-weight:700;color:var(--ink);}
h3{font-size:22px;line-height:1.4;font-weight:600;color:var(--ink);}
.section-head h2{margin-top:12px;}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:17px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:13px;font-weight:600;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.chip{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--ink-soft);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
.divider{height:1px;background:var(--line-soft);border:0;margin:0;}

/* ============ 分类头卡片 ============ */
.cat-hero{padding:40px 0 8px;}
.cat-hero-card{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:40px;box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.cat-hero-card::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:220px;height:220px;
  background-image:radial-gradient(var(--brand) 1px,transparent 1px);
  background-size:16px 16px;opacity:.06;pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-mute);margin-bottom:16px;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:var(--line);}
.cat-hero-card h1{margin:14px 0 16px;font-size:44px;}
.lead{font-size:18px;line-height:1.85;color:var(--ink-soft);max-width:640px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cat-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-m);background:var(--brand-light);}
.trust-inline{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line-soft);}
.trust-inline div{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-soft);}
.trust-inline svg{width:18px;height:18px;color:var(--brand);}

/* ============ 图文交替 ============ */
.zig-row{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;
  padding:40px 0;border-top:1px solid var(--line-soft);
}
.zig-row:first-child{border-top:0;padding-top:8px;}
.zig-row.reverse .zig-media{order:2;}
.zig-media{position:relative;}
.zig-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  border-radius:var(--r-m);border:1px solid var(--line);background:var(--brand-light);
  transition:transform .3s var(--ease);
}
.zig-media:hover img{transform:scale(1.02);}
.num-tag{
  position:absolute;top:-14px;left:-14px;
  width:48px;height:48px;border-radius:14px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  display:grid;place-items:center;
  font-size:17px;font-weight:800;color:var(--brand);letter-spacing:-.02em;
}
.zig-body h2{font-size:30px;margin-bottom:16px;}
.zig-body p{color:var(--ink-soft);max-width:660px;}
.zig-list{margin-top:18px;display:grid;gap:12px;}
.zig-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink-soft);}
.zig-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:11px;
  border-radius:3px;background:var(--brand);
}

/* ============ 两列要点卡 ============ */
.points-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.point-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:30px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(11,110,110,.3);}
.point-card h3{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.point-card h3 svg{width:22px;height:22px;color:var(--brand);}
.point-list{display:grid;gap:14px;}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding-bottom:14px;border-bottom:1px solid var(--line-soft);
  font-size:16px;color:var(--ink-soft);
}
.point-list li:last-child{border-bottom:0;padding-bottom:0;}
.point-list li strong{color:var(--ink);font-weight:600;display:block;margin-bottom:4px;font-size:16px;}
.point-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:11px;
  border-radius:50%;background:var(--accent);
}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.scene-card{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:26px;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{border-color:rgba(11,110,110,.3);transform:translateY(-4px);box-shadow:var(--sh-2);}
.scene-card span.k{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.02em;}
.scene-card h3{font-size:19px;}
.scene-card p{font-size:15px;color:var(--ink-soft);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:rgba(11,110,110,.32);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  background:var(--brand-light);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;transition:transform .2s var(--ease);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-body{padding:0 22px 20px;color:var(--ink-soft);font-size:16px;line-height:1.85;}

/* ============ CTA 面板 ============ */
.cta-panel{
  background:var(--brand-xlight);
  border:1px solid #D5E6E4;border-radius:var(--r-l);
  padding:44px;display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-30px;bottom:-30px;width:180px;height:180px;
  background-image:radial-gradient(var(--brand) 1px,transparent 1px);
  background-size:14px 14px;opacity:.06;pointer-events:none;
}
.cta-copy h2{font-size:30px;margin-bottom:12px;}
.cta-copy p{color:var(--ink-soft);}
.cta-form{display:grid;gap:12px;position:relative;z-index:1;}
.field{
  width:100%;height:48px;padding:0 16px;
  border-radius:12px;border:1px solid var(--line);
  background:#fff;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field::placeholder{color:var(--ink-mute);}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,110,110,.14);}
.field.error{border-color:#B42318;box-shadow:0 0 0 3px rgba(180,35,24,.12);}
.form-hint{font-size:13px;line-height:1.65;color:var(--ink-mute);}
.form-msg{font-size:14px;margin:0;min-height:0;}
.form-msg.ok{color:#2F8F5B;}
.form-msg.err{color:#B42318;}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#E8F1F0;margin-top:24px;padding:64px 0 28px;}
.site-footer .logo-text{color:#F1F8F7;}
.site-footer .logo-mark{background:var(--brand);box-shadow:inset 0 -2px 0 rgba(255,255,255,.14);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{margin:18px 0 20px;font-size:14px;line-height:1.8;color:rgba(232,241,240,.72);max-width:280px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:rgba(232,241,240,.8);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.footer-social a svg{width:18px;height:18px;}
.footer-social a:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
.footer-col h4{font-size:14px;font-weight:600;color:rgba(232,241,240,.6);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;font-size:14px;color:rgba(232,241,240,.78);}
.footer-col a{transition:color .2s var(--ease);}
.footer-col a:hover{color:#9FD8D4;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(232,241,240,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-actions{display:none;}
}
@media (max-width:1023px){
  .nav-cards{display:none;}
  .nav-toggle{display:flex;}
  .nav-panel{justify-content:space-between;}
  h1{font-size:38px;}
  .cat-hero-card h1{font-size:36px;}
  h2{font-size:30px;}
  .section{padding:64px 0;}
  .cat-hero-card{grid-template-columns:1fr;padding:30px;gap:28px;}
  .cat-hero-media img{aspect-ratio:16/9;}
  .zig-row{grid-template-columns:1fr;gap:26px;padding:32px 0;}
  .zig-row.reverse .zig-media{order:0;}
  .zig-media img{aspect-ratio:16/9;}
  .points-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .site-header{padding-top:10px;}
  .nav-panel{min-height:70px;padding:8px 14px;border-radius:20px;}
  .logo-text{font-size:16px;}
  h1{font-size:30px;}
  .cat-hero-card h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .zig-body h2{font-size:22px;}
  .section{padding:52px 0;}
  .cat-hero{padding:26px 0 4px;}
  .cat-hero-card{padding:22px;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-panel{padding:24px;border-radius:20px;}
  .cta-copy h2{font-size:24px;}
  .btn{width:100%;}
  .cat-hero-actions .btn{width:100%;}
  .cat-hero-actions{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .drawer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .btn:hover,.point-card:hover,.scene-card:hover{transform:none;}
  .zig-media:hover img{transform:none;}
}

/* roulang page: category2 */
:root{
    --brand:#0B6E6E;
    --brand-dark:#074B4B;
    --brand-light:#E6F2F1;
    --brand-xlight:#F1F8F7;
    --accent:#E07A3F;
    --accent-light:#FDEDE3;
    --paper:#F8F5F0;
    --card:#FFFFFF;
    --deep:#0B2B2A;
    --ink:#101820;
    --ink-2:#4A5560;
    --ink-3:#8A939B;
    --line:#E3DED6;
    --line-2:#EFEAE3;
    --ok:#2F8F5B;
    --warn:#C2410C;
    --err:#B42318;
    --r-sm:10px;
    --r-md:18px;
    --r-lg:24px;
    --sh-1:0 1px 2px rgba(16,24,32,.05);
    --sh-2:0 8px 22px rgba(11,43,42,.07);
    --sh-3:0 20px 44px rgba(11,43,42,.11);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:17px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  body.no-scroll{overflow:hidden}
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);line-height:1.3}
  h1{font-size:46px;font-weight:800;line-height:1.25}
  h2{font-size:34px;font-weight:700}
  h3{font-size:22px;font-weight:600;line-height:1.4}
  p{margin:0 0 1.2em}
  p:last-child{margin-bottom:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .section{padding:88px 0}
  .section-tight{padding:64px 0}
  .section-head{max-width:760px;margin:0 auto 44px;text-align:center}
  .section-head.is-left{margin-left:0;text-align:left}
  .section-head p{color:var(--ink-2);font-size:16px;margin-top:14px;margin-bottom:0}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.06em;
    color:var(--brand-dark);background:var(--brand-light);
    padding:5px 12px;border-radius:999px;margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
  .divider{height:1px;background:var(--line-2);border:0;margin:0}

  /* ---------- header / nav ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:14px 0}
  .nav-panel{
    display:flex;align-items:center;gap:18px;
    min-height:80px;padding:12px 20px;
    background:rgba(255,255,255,.95);
    border:1px solid var(--line);
    border-radius:24px;
    box-shadow:var(--sh-1);
    backdrop-filter:saturate(140%) blur(6px);
    transition:box-shadow 200ms var(--ease),min-height 200ms var(--ease),background-color 200ms var(--ease);
  }
  .site-header.scrolled .nav-panel{box-shadow:var(--sh-2);min-height:72px;background:#fff}
  .logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;
    background:var(--brand);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:19px;letter-spacing:-.02em;
    box-shadow:0 4px 12px rgba(11,110,110,.28);
  }
  .logo-text{font-weight:700;font-size:18px;color:var(--ink);letter-spacing:-.01em}
  .nav-cards{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
  .nav-card{
    display:inline-flex;align-items:center;gap:8px;
    padding:10px 14px;border-radius:14px;
    font-size:14px;font-weight:600;color:var(--ink-2);
    border:1px solid transparent;
    transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
  }
  .nav-card svg{width:20px;height:20px;color:var(--brand);flex:0 0 auto}
  .nav-card:hover{background:var(--brand-light);color:var(--brand-dark)}
  .nav-card.active{
    background:var(--brand-light);color:var(--brand-dark);
    border-color:rgba(11,110,110,.28);
    box-shadow:inset 2px 0 0 var(--brand);
  }
  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    background:#fff;border:1px solid var(--line);
    align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform 180ms var(--ease),opacity 180ms var(--ease)}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:999px;
    font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:transform 180ms var(--ease),background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .btn-sm{min-height:42px;padding:0 18px;font-size:14px}
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:transparent;color:var(--brand-dark);border-color:rgba(11,110,110,.4)}
  .btn-ghost:hover{background:var(--brand-light);border-color:var(--brand)}
  .btn-accent{background:var(--accent);color:#fff}
  .btn-accent:hover{background:#C96A33;transform:translateY(-1px)}
  .btn-accent:active{transform:translateY(1px)}
  .btn-block{width:100%}
  .link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand)}
  .link-arrow svg{width:18px;height:18px;transition:transform 180ms var(--ease)}
  .link-arrow:hover svg{transform:translateX(3px)}

  /* ---------- badges & chips ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;
    border-radius:999px;background:var(--brand-light);color:var(--brand-dark);
    font-size:13px;font-weight:600;
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
  .chip{
    display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
    border:1px solid var(--line);background:#fff;color:var(--ink-2);
    font-size:13.5px;font-weight:600;transition:all 180ms var(--ease);
  }
  .chip:hover{background:var(--brand);border-color:var(--brand);color:#fff}

  /* ---------- breadcrumb / category hero ---------- */
  .breadcrumb-card{
    display:inline-flex;align-items:center;gap:10px;
    min-height:48px;padding:0 18px;margin-bottom:28px;
    background:#fff;border:1px solid var(--line);border-radius:999px;
    font-size:14px;color:var(--ink-3);box-shadow:var(--sh-1);
  }
  .breadcrumb-card a{color:var(--ink-2);font-weight:600}
  .breadcrumb-card a:hover{color:var(--brand)}
  .breadcrumb-card .cur{color:var(--brand-dark);font-weight:600}
  .cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
  .cat-hero h1{margin:18px 0 20px;max-width:15em}
  .cat-hero .lead{font-size:18px;color:var(--ink-2);max-width:30em;line-height:1.85}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .cat-hero-fig{
    position:relative;margin:0;border-radius:24px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--sh-3);background:var(--brand-light);
  }
  .cat-hero-fig img{width:100%;height:340px;object-fit:cover}
  .cat-hero-fig::after{
    content:"";position:absolute;right:0;bottom:0;width:170px;height:130px;
    background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
    background-size:14px 14px;opacity:.35;pointer-events:none;
  }
  .cat-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
  .step{
    background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px 24px;
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(11,110,110,.32)}
  .step-top{display:flex;align-items:center;gap:12px;margin-bottom:18px}
  .step-dot{
    width:38px;height:38px;border-radius:999px;flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    background:var(--brand-light);border:1px solid rgba(11,110,110,.35);
    color:var(--brand-dark);font-weight:800;font-size:14px;letter-spacing:-.02em;
  }
  .step-line{flex:1;height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(11,110,110,.4),rgba(11,110,110,.08))}
  .steps .step:last-child .step-line{background:transparent}
  .step h3{font-size:19px;margin-bottom:10px}
  .step p{font-size:15px;color:var(--ink-2);line-height:1.85;margin:0}
  .step .step-out{
    display:block;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
    font-size:13.5px;color:var(--ink-3);
  }
  .step .step-out strong{color:var(--brand-dark);font-weight:600}

  /* ---------- media cards ---------- */
  .media-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .media-card{
    display:grid;grid-template-columns:190px 1fr;
    background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .media-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(11,110,110,.32)}
  .media-card img{width:100%;height:100%;min-height:210px;object-fit:cover;background:var(--brand-light)}
  .media-body{padding:24px 24px 22px}
  .media-body h3{font-size:20px;margin-bottom:10px}
  .media-body p{font-size:15px;color:var(--ink-2);line-height:1.85;margin:0 0 14px}
  .media-body ul{display:flex;flex-wrap:wrap;gap:8px}
  .media-body li{
    font-size:13px;color:var(--brand-dark);background:var(--brand-xlight);
    border:1px solid rgba(11,110,110,.16);border-radius:999px;padding:3px 11px;
  }

  /* ---------- stats ---------- */
  .stats{
    display:grid;grid-template-columns:repeat(3,1fr);
    background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;
    box-shadow:var(--sh-1);
  }
  .stat{padding:34px 30px;border-right:1px solid var(--line-2)}
  .stat:last-child{border-right:0}
  .stat-num{font-size:42px;font-weight:800;color:var(--brand-dark);letter-spacing:-.02em;line-height:1.1}
  .stat-num small{font-size:16px;font-weight:600;color:var(--brand);margin-left:4px}
  .stat-label{margin-top:10px;font-size:15px;font-weight:600;color:var(--ink)}
  .stat-note{margin-top:6px;font-size:13.5px;color:var(--ink-3);line-height:1.7}

  /* ---------- dark panel ---------- */
  .dark-panel{
    position:relative;overflow:hidden;
    background:var(--deep);color:#F1F8F7;
    border:1px solid rgba(255,255,255,.08);
    border-radius:24px;padding:56px;
  }
  .dark-panel::after{
    content:"";position:absolute;right:-60px;bottom:-60px;width:320px;height:320px;
    background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
    background-size:16px 16px;opacity:.35;pointer-events:none;
  }
  .dark-panel h2{color:#fff}
  .dark-panel .panel-lead{color:rgba(241,248,247,.72);font-size:16px;margin-top:14px;max-width:46em}
  .scope-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;margin-top:34px;position:relative;z-index:1}
  .scope-item{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .scope-item svg{width:20px;height:20px;color:var(--accent);flex:0 0 auto;margin-top:5px}
  .scope-item strong{display:block;font-size:16px;font-weight:600;color:#fff;margin-bottom:4px}
  .scope-item span{font-size:14px;color:rgba(241,248,247,.7);line-height:1.75}

  /* ---------- qa ---------- */
  .qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
  .qa-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:26px 26px 24px;position:relative;
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .qa-card::before{
    content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;
    background:var(--brand);border-radius:0 3px 3px 0;opacity:0;transition:opacity 200ms var(--ease);
  }
  .qa-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(11,110,110,.32)}
  .qa-card:hover::before{opacity:1}
  .qa-card h3{font-size:18px;margin-bottom:10px;color:var(--brand-dark)}
  .qa-card p{font-size:15px;color:var(--ink-2);line-height:1.85;margin:0}

  /* ---------- cta ---------- */
  .cta-panel{
    position:relative;overflow:hidden;
    background:var(--deep);color:#F1F8F7;
    border:1px solid rgba(255,255,255,.08);
    border-radius:24px;padding:52px 56px;
    display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  }
  .cta-panel::after{
    content:"";position:absolute;left:-50px;top:-50px;width:280px;height:280px;
    background-image:radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px);
    background-size:16px 16px;opacity:.3;pointer-events:none;
  }
  .cta-panel h2{color:#fff;font-size:30px}
  .cta-panel .cta-sub{color:rgba(241,248,247,.72);margin-top:12px;font-size:16px;margin-bottom:0}
  .cta-form{position:relative;z-index:1}
  .field-row{display:flex;gap:12px}
  .field{
    flex:1;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
    background:rgba(255,255,255,.07);color:#fff;padding:0 16px;font-size:15px;
    transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .field::placeholder{color:rgba(241,248,247,.5)}
  .field:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,122,63,.25)}
  .field.is-err{border-color:#F0A08A}
  .form-msg{margin:12px 0 0;font-size:13.5px;min-height:20px;color:rgba(241,248,247,.62)}
  .form-msg.is-ok{color:#8ED8B4}
  .form-msg.is-err{color:#F5B7A4}
  .form-privacy{margin:10px 0 0;font-size:12.5px;color:rgba(241,248,247,.5)}

  /* ---------- footer ---------- */
  .site-footer{background:var(--deep);color:rgba(241,248,247,.78);margin-top:88px;padding:72px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
  .site-footer .logo-text{color:#fff}
  .footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.8;max-width:26em;color:rgba(241,248,247,.66)}
  .footer-social{display:flex;gap:10px;margin-top:20px}
  .footer-social a{
    width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,.14);color:rgba(241,248,247,.8);
    transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
  }
  .footer-social a:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
  .footer-social svg{width:19px;height:19px}
  .footer-col h4{font-size:14px;font-weight:600;color:rgba(241,248,247,.55);margin-bottom:16px;letter-spacing:.03em}
  .footer-col li{font-size:14.5px;line-height:2;color:rgba(241,248,247,.72)}
  .footer-col a{transition:color 180ms var(--ease)}
  .footer-col a:hover{color:#8FD6D2}
  .footer-bottom{
    margin-top:56px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13.5px;color:rgba(241,248,247,.5);
  }

  /* ---------- drawer ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;background:rgba(11,43,42,.55);
    padding:16px;display:flex;justify-content:flex-end;
  }
  .drawer[hidden]{display:none}
  .drawer-inner{
    width:100%;max-width:400px;background:#fff;border-radius:24px;
    padding:22px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
    box-shadow:var(--sh-3);
  }
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .drawer-close{
    width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
    cursor:pointer;font-size:20px;line-height:1;color:var(--ink-2);
  }
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .drawer-grid .nav-card{
    flex-direction:column;align-items:flex-start;gap:10px;
    border:1px solid var(--line);border-radius:16px;padding:14px;background:#fff;
  }
  .drawer-grid .nav-card.active{box-shadow:none;border-color:var(--brand);background:var(--brand-light)}
  .drawer-cta{margin-top:auto}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .section{padding:64px 0}
    h1{font-size:34px}
    h2{font-size:27px}
    .nav-cards{display:none}
    .nav-actions{display:none}
    .nav-toggle{display:inline-flex;margin-left:auto}
    .nav-panel{min-height:72px}
    .cat-hero-grid{grid-template-columns:1fr;gap:32px}
    .cat-hero-fig img{height:280px}
    .steps{grid-template-columns:repeat(2,1fr)}
    .stats{grid-template-columns:1fr;}
    .stat{border-right:0;border-bottom:1px solid var(--line-2)}
    .stat:last-child{border-bottom:0}
    .dark-panel{padding:40px 30px}
    .scope-grid{grid-template-columns:1fr}
    .qa-grid{grid-template-columns:1fr}
    .cta-panel{grid-template-columns:1fr;padding:40px 30px;gap:28px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:639px){
    body{font-size:16px}
    .container{padding:0 20px}
    .section{padding:52px 0}
    h1{font-size:30px}
    h2{font-size:24px}
    h3{font-size:19px}
    .steps{grid-template-columns:1fr}
    .step-line{display:none}
    .media-grid{grid-template-columns:1fr}
    .media-card{grid-template-columns:1fr}
    .media-card img{min-height:0;height:170px}
    .stats{grid-template-columns:1fr}
    .stat-num{font-size:34px}
    .footer-grid{grid-template-columns:1fr}
    .field-row{flex-direction:column}
    .btn{width:100%}
    .nav-actions .btn,.hero-actions .btn{width:auto}
    .footer-bottom{flex-direction:column;gap:8px}
  }
  @media (prefers-reduced-motion: reduce){
    *{transition:none !important;animation:none !important}
    html{scroll-behavior:auto}
  }

/* roulang page: category3 */
:root{
    --brand:#0B6E6E;
    --brand-dark:#074B4B;
    --brand-light:#E6F2F1;
    --brand-soft:#F1F8F7;
    --accent:#E07A3F;
    --accent-light:#FDEDE3;
    --paper:#F8F5F0;
    --deep:#0B2B2A;
    --ink:#101820;
    --ink-2:#4A5560;
    --ink-3:#8A939B;
    --line:#E3DED6;
    --line-2:#EFEAE3;
    --ok:#2F8F5B;
    --warn:#C2410C;
    --err:#B42318;
    --r-sm:10px;
    --r-md:18px;
    --r-lg:24px;
    --sh-1:0 1px 2px rgba(16,24,32,.05);
    --sh-2:0 8px 22px rgba(11,43,42,.07);
    --sh-3:0 20px 44px rgba(11,43,42,.11);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:17px;
    line-height:1.9;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:var(--brand); text-decoration:none; transition:color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease); }
  button,input{ font:inherit; color:inherit; }
  button{ cursor:pointer; }
  :focus-visible{ outline:2px solid var(--brand); outline-offset:2px; border-radius:6px; }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 24px; }
  .section{ padding:88px 0; }
  .section-tight{ padding:64px 0; }
  .divider{ height:1px; background:var(--line-2); border:0; margin:0; }

  /* ---------- Header ---------- */
  .site-header{ position:sticky; top:0; z-index:50; padding:14px 0; }
  .nav-panel{
    display:flex; align-items:center; gap:18px;
    background:rgba(255,255,255,.96);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:12px 20px;
    min-height:78px;
    transition:box-shadow .22s var(--ease), min-height .22s var(--ease), background-color .22s var(--ease);
  }
  .site-header.scrolled .nav-panel{ box-shadow:var(--sh-2); background:#fff; min-height:70px; }
  .logo{ display:inline-flex; align-items:center; gap:10px; flex-shrink:0; }
  .logo-mark{
    width:38px; height:38px; border-radius:12px;
    background:var(--brand); color:#fff;
    display:grid; place-items:center;
    font-weight:800; font-size:18px; letter-spacing:-.02em;
    box-shadow:var(--sh-1);
  }
  .logo-text{ font-weight:800; font-size:19px; color:var(--ink); letter-spacing:-.01em; }
  .nav-cards{ display:flex; align-items:center; gap:6px; margin-left:6px; flex-wrap:wrap; }
  .nav-card{
    display:inline-flex; align-items:center; gap:7px;
    padding:8px 12px; border-radius:12px;
    color:var(--ink-2); font-size:15px; font-weight:500;
    border:1px solid transparent; position:relative;
    transition:background-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
  }
  .nav-card svg{ width:19px; height:19px; flex-shrink:0; color:var(--brand); }
  .nav-card:hover{ background:var(--brand-light); color:var(--brand-dark); transform:translateY(-1px); }
  .nav-card.active{
    background:var(--brand-light); color:var(--brand-dark);
    font-weight:600; border-color:rgba(11,110,110,.22);
  }
  .nav-card.active::before{
    content:""; position:absolute; left:-1px; top:12px; bottom:12px;
    width:2px; border-radius:2px; background:var(--brand);
  }
  .nav-actions{ display:flex; align-items:center; gap:10px; margin-left:auto; flex-shrink:0; }
  .nav-toggle{
    display:none; width:44px; height:44px; border-radius:12px;
    border:1px solid var(--line); background:#fff; margin-left:auto;
    flex-direction:column; align-items:center; justify-content:center; gap:4px;
  }
  .nav-toggle span{ display:block; width:18px; height:2px; background:var(--ink); border-radius:2px; }

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:48px; padding:0 22px; border-radius:999px;
    font-size:15px; font-weight:600; letter-spacing:.01em;
    border:1px solid transparent; white-space:nowrap;
    transition:background-color .2s var(--ease), color .2s var(--ease), transform .18s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  }
  .btn-sm{ height:44px; padding:0 18px; font-size:14px; }
  .btn-primary{ background:var(--brand); color:#fff; }
  .btn-primary:hover{ background:var(--brand-dark); color:#fff; transform:translateY(-1px); }
  .btn-primary:active{ transform:translateY(1px); }
  .btn-ghost{ background:transparent; color:var(--brand); border-color:rgba(11,110,110,.45); }
  .btn-ghost:hover{ background:var(--brand-light); color:var(--brand-dark); }
  .btn-accent{ background:var(--accent); color:#fff; }
  .btn-accent:hover{ background:#cf6a31; color:#fff; transform:translateY(-1px); }
  .btn-accent:active{ transform:translateY(1px); }
  .btn-link{ display:inline-flex; align-items:center; gap:6px; color:var(--brand); font-weight:600; font-size:15px; }
  .btn-link svg{ width:17px; height:17px; transition:transform .2s var(--ease); }
  .btn-link:hover{ color:var(--brand-dark); }
  .btn-link:hover svg{ transform:translateX(3px); }

  /* ---------- Breadcrumb ---------- */
  .breadcrumb-bar{
    background:#fff; border:1px solid var(--line); border-radius:var(--r-md);
    box-shadow:var(--sh-1); padding:0 20px; min-height:52px;
    display:flex; align-items:center; gap:10px; font-size:14px; color:var(--ink-3);
    margin-top:20px;
  }
  .breadcrumb-bar a{ color:var(--ink-2); }
  .breadcrumb-bar a:hover{ color:var(--brand); }
  .breadcrumb-bar .sep{ color:var(--line); }
  .breadcrumb-bar .current{ color:var(--ink); font-weight:600; }

  /* ---------- Category hero ---------- */
  .cat-hero{
    display:grid; grid-template-columns:7fr 5fr; gap:32px; align-items:center;
    background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
    box-shadow:var(--sh-2); padding:40px; margin-top:24px;
  }
  .cat-hero .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    background:var(--brand-light); color:var(--brand-dark);
    border-radius:999px; height:28px; padding:0 14px;
    font-size:14px; font-weight:600;
  }
  .cat-hero .eyebrow::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--accent); }
  .cat-hero h1{
    font-size:46px; line-height:1.25; font-weight:800;
    letter-spacing:-.01em; color:var(--ink); margin:16px 0 14px;
  }
  .cat-hero .lead{ font-size:17px; color:var(--ink-2); max-width:620px; margin:0 0 22px; }
  .cat-hero .hero-actions{ display:flex; flex-wrap:wrap; gap:12px; }
  .cat-hero-figure{ position:relative; }
  .cat-hero-figure img{
    width:100%; aspect-ratio:4/3; object-fit:cover;
    border-radius:var(--r-md); background:var(--brand-light);
  }
  .cat-hero-figure::after{
    content:""; position:absolute; right:-10px; bottom:-10px; width:96px; height:96px;
    background-image:radial-gradient(var(--brand) 1.2px, transparent 1.2px);
    background-size:12px 12px; opacity:.16; border-radius:12px; pointer-events:none;
  }
  .hero-facts{ display:flex; flex-wrap:wrap; gap:20px; margin-top:22px; padding-top:20px; border-top:1px solid var(--line-2); }
  .hero-fact{ font-size:14px; color:var(--ink-2); display:flex; align-items:center; gap:8px; }
  .hero-fact svg{ width:17px; height:17px; color:var(--brand); }

  /* ---------- Section heads ---------- */
  .section-head{ margin-bottom:36px; }
  .section-head .kicker{
    display:inline-block; font-size:14px; font-weight:700; color:var(--brand);
    letter-spacing:.06em; margin-bottom:10px;
  }
  .section-head h2{
    font-size:34px; line-height:1.3; font-weight:800; color:var(--ink);
    letter-spacing:-.01em; margin:0 0 12px;
  }
  .section-head p{ margin:0; color:var(--ink-2); max-width:760px; font-size:17px; }
  .section-head.center{ text-align:center; }
  .section-head.center p{ margin-left:auto; margin-right:auto; }

  /* ---------- Service matrix 2x3 ---------- */
  .matrix-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
  .m-card{
    background:#fff; border:1px solid var(--line); border-radius:var(--r-md);
    padding:26px; display:flex; flex-direction:column; gap:12px;
    transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  }
  .m-card:hover{ transform:translateY(-4px); box-shadow:var(--sh-2); border-color:rgba(11,110,110,.3); }
  .m-card .m-top{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
  .m-card .m-icon{
    width:44px; height:44px; border-radius:12px; background:var(--brand-soft);
    display:grid; place-items:center; color:var(--brand);
  }
  .m-card .m-icon svg{ width:22px; height:22px; }
  .m-card .m-no{ font-size:13px; font-weight:700; color:var(--ink-3); letter-spacing:.04em; }
  .m-card h3{ font-size:22px; line-height:1.4; font-weight:600; margin:2px 0 0; color:var(--ink); }
  .m-card p{ margin:0; font-size:15px; color:var(--ink-2); line-height:1.8; }
  .m-card .m-foot{
    margin-top:auto; padding-top:14px; border-top:1px solid var(--line-2);
    font-size:14px; color:var(--brand); font-weight:600;
    display:inline-flex; align-items:center; gap:6px;
  }

  /* ---------- Note band ---------- */
  .note-band{
    background:var(--brand-light);
    border:1px solid rgba(11,110,110,.16);
    border-radius:var(--r-lg);
    padding:40px;
  }
  .note-grid{ display:grid; grid-template-columns:5fr 7fr; gap:36px; align-items:start; }
  .note-band h2{ font-size:30px; line-height:1.35; font-weight:800; color:var(--brand-dark); margin:0 0 12px; }
  .note-band p{ margin:0 0 12px; color:#134a49; font-size:16px; line-height:1.85; }
  .note-list{ list-style:none; margin:0; padding:0; display:grid; gap:12px; }
  .note-list li{
    display:flex; gap:12px; align-items:flex-start;
    background:rgba(255,255,255,.72); border:1px solid rgba(11,110,110,.14);
    border-radius:14px; padding:14px 16px; font-size:15px; color:#12403f;
  }
  .note-list li .dot{ width:8px; height:8px; border-radius:2px; background:var(--accent); margin-top:8px; flex-shrink:0; }
  .metrics{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:26px; }
  .metric{ background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:20px; }
  .metric .num{ font-size:32px; font-weight:800; color:var(--brand-dark); letter-spacing:-.02em; line-height:1.2; }
  .metric .label{ font-size:14px; color:var(--ink-2); margin-top:6px; }

  /* ---------- FAQ ---------- */
  .faq-wrap{ max-width:860px; margin:0 auto; }
  .faq-item{
    background:#fff; border:1px solid var(--line); border-radius:14px;
    margin-bottom:12px; overflow:hidden; transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .faq-item:hover{ box-shadow:var(--sh-1); }
  .faq-item[open]{ border-color:rgba(11,110,110,.35); box-shadow:var(--sh-1); }
  .faq-item summary{
    list-style:none; cursor:pointer; position:relative;
    padding:20px 56px 20px 22px; font-size:17px; font-weight:600; color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary::after{
    content:"+"; position:absolute; right:22px; top:50%; transform:translateY(-50%);
    font-size:22px; font-weight:400; color:var(--brand); line-height:1;
    transition:transform .2s var(--ease);
  }
  .faq-item[open] summary::after{ content:"−"; transform:translateY(-50%) rotate(180deg); }
  .faq-item[open] summary{ padding-left:22px; }
  .faq-item[open] summary::before{
    content:""; position:absolute; left:0; top:14px; bottom:14px; width:3px;
    background:var(--brand); border-radius:0 3px 3px 0;
  }
  .faq-body{ padding:0 22px 22px; color:var(--ink-2); font-size:16px; line-height:1.8; }
  .faq-body p{ margin:0 0 10px; }
  .faq-body p:last-child{ margin-bottom:0; }

  /* ---------- CTA ---------- */
  .cta-panel{
    background:var(--deep); border-radius:var(--r-lg); padding:48px;
    display:grid; grid-template-columns:7fr 5fr; gap:36px; align-items:center;
    position:relative; overflow:hidden;
    border:1px solid rgba(255,255,255,.08);
  }
  .cta-panel::after{
    content:""; position:absolute; right:28px; top:28px; width:120px; height:120px;
    background-image:radial-gradient(rgba(255,255,255,.55) 1.2px, transparent 1.2px);
    background-size:14px 14px; opacity:.14; border-radius:12px; pointer-events:none;
  }
  .cta-panel h2{ font-size:32px; line-height:1.32; font-weight:800; color:#F1F8F7; margin:0 0 12px; }
  .cta-panel p{ margin:0; color:rgba(241,248,247,.72); font-size:16px; max-width:560px; }
  .cta-form{ display:flex; gap:10px; flex-wrap:wrap; }
  .cta-form input[type="email"]{
    flex:1 1 220px; height:48px; border-radius:12px;
    border:1px solid rgba(255,255,255,.18); background:rgba(255,255,255,.06);
    color:#F1F8F7; padding:0 16px; font-size:15px;
    transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .cta-form input[type="email"]::placeholder{ color:rgba(241,248,247,.5); }
  .cta-form input[type="email"]:focus{
    outline:none; border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(224,122,63,.25);
  }
  .cta-form input.invalid{ border-color:#F87171; }
  .cta-note{ margin-top:12px; font-size:13px; color:rgba(241,248,247,.55); }
  .cta-msg{ margin-top:10px; font-size:14px; min-height:20px; }
  .cta-msg.ok{ color:#7FD8A8; }
  .cta-msg.err{ color:#FCA5A5; }
  .cta-msg.loading{ color:rgba(241,248,247,.7); }

  /* ---------- Footer ---------- */
  .site-footer{ background:var(--deep); color:rgba(241,248,247,.75); margin-top:88px; padding:64px 0 28px; }
  .footer-grid{ display:grid; grid-template-columns:4fr 2fr 2fr 3fr; gap:32px; }
  .footer-brand .logo-text{ color:#F1F8F7; }
  .footer-brand .logo-mark{ background:var(--brand); }
  .footer-brand p{ margin:16px 0 18px; font-size:15px; line-height:1.8; color:rgba(241,248,247,.68); max-width:320px; }
  .footer-social{ display:flex; gap:10px; }
  .footer-social a{
    width:40px; height:40px; border-radius:12px; display:grid; place-items:center;
    border:1px solid rgba(255,255,255,.14); color:rgba(241,248,247,.8);
  }
  .footer-social a:hover{ background:rgba(255,255,255,.08); color:#fff; }
  .footer-social svg{ width:18px; height:18px; }
  .footer-col h4{ font-size:14px; font-weight:600; color:rgba(241,248,247,.55); margin:0 0 16px; letter-spacing:.04em; }
  .footer-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
  .footer-col li{ font-size:15px; color:rgba(241,248,247,.72); }
  .footer-col a{ color:rgba(241,248,247,.75); }
  .footer-col a:hover{ color:#9FD9D5; }
  .footer-bottom{
    margin-top:44px; padding-top:20px; border-top:1px solid rgba(255,255,255,.1);
    display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
    font-size:13px; color:rgba(241,248,247,.55);
  }

  /* ---------- Mobile drawer ---------- */
  .mobile-drawer{
    position:fixed; inset:0; z-index:70; background:var(--deep);
    padding:24px; display:none; flex-direction:column; gap:22px; overflow-y:auto;
  }
  .mobile-drawer.open{ display:flex; }
  .mobile-drawer .drawer-head{ display:flex; align-items:center; justify-content:space-between; }
  .mobile-drawer .drawer-head .logo-text{ color:#F1F8F7; }
  .drawer-close{
    width:44px; height:44px; border-radius:12px; border:1px solid rgba(255,255,255,.18);
    background:transparent; color:#F1F8F7; font-size:20px; line-height:1;
  }
  .drawer-grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
  .drawer-card{
    background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.1);
    border-radius:14px; padding:16px; color:#F1F8F7; font-size:15px; font-weight:500;
    display:flex; flex-direction:column; gap:10px;
  }
  .drawer-card svg{ width:20px; height:20px; color:#9FD9D5; }
  .drawer-card.active{ border-color:rgba(159,217,213,.6); background:rgba(255,255,255,.1); }
  .drawer-cta{ margin-top:auto; }

  /* ---------- Responsive ---------- */
  @media (max-width:1023px){
    .nav-cards{ display:none; }
    .nav-actions{ display:none; }
    .nav-toggle{ display:inline-flex; }
    .section{ padding:64px 0; }
    .cat-hero{ grid-template-columns:1fr; padding:32px; }
    .cat-hero h1{ font-size:34px; }
    .matrix-grid{ grid-template-columns:repeat(2,1fr); }
    .note-grid{ grid-template-columns:1fr; gap:24px; }
    .cta-panel{ grid-template-columns:1fr; padding:36px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
    .footer-brand{ grid-column:1 / -1; }
  }
  @media (max-width:767px){
    body{ font-size:16px; }
    .container{ padding:0 20px; }
    .section{ padding:56px 0; }
    .section-tight{ padding:48px 0; }
    .nav-panel{ min-height:66px; padding:10px 14px; }
    .logo-text{ font-size:17px; }
    .cat-hero{ padding:26px 22px; border-radius:var(--r-md); }
    .cat-hero h1{ font-size:30px; }
    .cat-hero .hero-actions .btn{ width:100%; }
    .section-head h2{ font-size:24px; }
    .matrix-grid{ grid-template-columns:1fr; gap:16px; }
    .metrics{ grid-template-columns:1fr; }
    .note-band{ padding:26px 22px; }
    .note-band h2{ font-size:24px; }
    .cta-panel{ padding:26px 22px; }
    .cta-panel h2{ font-size:24px; }
    .cta-form input[type="email"]{ flex:1 1 100%; }
    .cta-form .btn{ width:100%; }
    .footer-grid{ grid-template-columns:1fr; }
    .site-footer{ margin-top:56px; padding:48px 0 24px; }
    .breadcrumb-bar{ font-size:13px; padding:0 14px; }
  }
  @media (prefers-reduced-motion:reduce){
    *{ transition:none !important; animation:none !important; }
    .m-card:hover, .btn:hover, .nav-card:hover{ transform:none !important; }
  }