/* roulang page: index */
:root{
    --c-primary:#1D5BD6;
    --c-primary-d:#14429B;
    --c-primary-50:#E9F0FE;
    --c-accent:#F59E0B;
    --c-accent-50:#FFF5E4;
    --c-bg:#F5F8FD;
    --c-surface:#FFFFFF;
    --c-line:#E3EAF5;
    --c-line-2:#EEF2F9;
    --c-ink:#0E1B2E;
    --c-ink-2:#52627A;
    --c-ink-3:#8A97A8;
    --c-ok:#17936B;
    --c-warn:#D9534F;
    --r-card:16px;
    --r-btn:10px;
    --shadow-card:0 1px 2px rgba(14,27,46,.04), 0 10px 28px -14px rgba(14,27,46,.14);
    --shadow-hover:0 2px 4px rgba(14,27,46,.06), 0 18px 36px -16px rgba(14,27,46,.20);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--c-ink-2);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  ul,ol{margin:0;padding:0}
  h1,h2,h3,h4,p{margin:0}
  button{font:inherit;cursor:pointer;border:none;background:none}
  input,textarea,select{font:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.wrap{padding:0 24px}}

  /* ===== 顶部导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.98);
    border-bottom:1px solid var(--c-line);
    transition:background .25s ease, box-shadow .25s ease;
  }
  .site-header.is-scrolled{
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:saturate(180%) blur(12px);
    backdrop-filter:saturate(180%) blur(12px);
    box-shadow:0 8px 24px -22px rgba(14,27,46,.8);
  }
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:14px 0;transition:padding .25s ease;
  }
  .is-scrolled .topbar{padding:8px 0}
  .brand{display:flex;align-items:center;gap:10px;flex:none}
  .brand-mark{
    width:38px;height:38px;flex:none;border-radius:12px;
    background:var(--c-primary);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:17px;font-weight:700;letter-spacing:.02em;
    transition:width .25s,height .25s;
  }
  .is-scrolled .brand-mark{width:32px;height:32px;border-radius:10px;font-size:15px}
  .brand-text strong{display:block;font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.3;letter-spacing:-.01em}
  .brand-text em{display:block;font-style:normal;font-size:12px;color:var(--c-ink-3);line-height:1.5}
  .topnav{display:flex;align-items:center;gap:24px}
  .nav-link{position:relative;font-size:14px;font-weight:500;color:var(--c-ink-2);padding:6px 0;transition:color .18s}
  .nav-link:hover{color:var(--c-primary)}
  .nav-link.is-active{color:var(--c-ink);font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--c-primary);
  }
  .topbar-right{display:flex;align-items:center;gap:10px;flex:none}
  .hot-tags{display:flex;gap:8px}
  .hot-tags a{font-size:12px;font-weight:600;color:var(--c-primary-d);background:var(--c-primary-50);border-radius:999px;padding:5px 11px;transition:background .18s}
  .hot-tags a:hover{background:#d8e6fd}
  .icon-btn{
    min-height:38px;min-width:44px;padding:0 12px;
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    border:1px solid var(--c-line);border-radius:10px;background:#fff;
    color:var(--c-ink-2);font-size:13px;font-weight:500;
    transition:all .18s;
  }
  .icon-btn:hover{border-color:#c6d7f6;color:var(--c-primary);background:var(--c-primary-50)}
  .menu-btn{display:none}

  .subbar{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    border-top:1px solid var(--c-line-2);padding:6px 0;
  }
  .subnav{display:flex;align-items:center;gap:22px;overflow-x:auto;scrollbar-width:none}
  .subnav::-webkit-scrollbar{display:none}
  .subnav a{
    flex:none;font-size:13px;color:var(--c-ink-2);padding:7px 0;
    border-bottom:2px solid transparent;transition:color .18s,border-color .18s;white-space:nowrap;
  }
  .subnav a:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}

  .search-panel{border-top:1px solid var(--c-line);background:#fff;padding:14px 0}
  .search-form{display:flex;gap:12px;align-items:center}
  .search-form input{
    flex:1;height:44px;border-radius:10px;border:1px solid var(--c-line);
    background:#fff;padding:0 14px;font-size:15px;color:var(--c-ink);
    transition:border-color .18s,box-shadow .18s;
  }
  .search-form input::placeholder{color:var(--c-ink-3)}
  .search-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,91,214,.14)}
  .search-hint{font-size:12px;color:var(--c-ink-3);margin-top:8px}

  /* ===== 按钮 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:background .18s,color .18s,box-shadow .18s,transform .18s,border-color .18s;
  }
  .btn-primary{background:var(--c-primary);color:#fff}
  .btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(29,91,214,.9)}
  .btn-primary:active{transform:translateY(0);box-shadow:none}
  .btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line)}
  .btn-ghost:hover{background:var(--c-primary-50);border-color:#c6d7f6}
  .btn-sm{min-height:36px;padding:0 16px;font-size:13px;border-radius:9px}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--c-primary);
    border-bottom:1px solid transparent;transition:border-color .18s,color .18s;
  }
  .text-link .arrow{transition:transform .18s}
  .text-link:hover{border-bottom-color:var(--c-primary)}
  .text-link:hover .arrow{transform:translateX(3px)}

  /* ===== 徽章 / 卡片 ===== */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:600;padding:4px 10px;border-radius:6px;line-height:1.5;
  }
  .badge-primary{background:var(--c-primary-50);color:var(--c-primary-d)}
  .badge-accent{background:var(--c-accent-50);color:#8A5A00}
  .badge-warn{background:#FDECEA;color:var(--c-warn)}
  .badge-ok{background:#E6F5EF;color:var(--c-ok)}

  .card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  }
  .card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#d3dff4}

  /* ===== 板块 ===== */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:88px 0}}
  .section-alt{background:#fff;border-top:1px solid var(--c-line-2);border-bottom:1px solid var(--c-line-2)}
  .section-head{margin-bottom:32px;max-width:760px}
  .eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--c-primary);margin-bottom:10px}
  .section-head h2{font-size:24px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;line-height:1.35}
  @media (min-width:1024px){.section-head h2{font-size:28px}}
  .section-desc{margin-top:12px;font-size:15px;color:var(--c-ink-2);line-height:1.75;max-width:46em}
  .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

  /* ===== Hero ===== */
  .hero{
    padding:44px 0 60px;
    background:
      radial-gradient(900px 420px at 88% -10%, #E6EEFE 0%, rgba(230,238,254,0) 62%),
      var(--c-bg);
  }
  @media (min-width:1024px){.hero{padding:64px 0 88px}}
  .hero-grid{display:grid;gap:40px;align-items:center}
  @media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr 1fr;gap:56px}}
  .hero h1{
    font-size:clamp(28px,3.6vw,42px);font-weight:700;line-height:1.25;
    letter-spacing:-.01em;color:var(--c-ink);margin:16px 0;
  }
  .hero-sub{font-size:16px;line-height:1.8;color:var(--c-ink-2);max-width:34em}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-status{
    list-style:none;display:flex;flex-wrap:wrap;gap:12px 20px;
    margin-top:28px;padding-top:22px;border-top:1px dashed var(--c-line);
    font-size:13px;color:var(--c-ink-2);
  }
  .hero-status li{display:flex;align-items:center;min-height:22px}
  .dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:8px;flex:none}
  .dot-ok{background:var(--c-ok)}
  .dot-primary{background:var(--c-primary)}
  .dot-accent{background:var(--c-accent)}

  .hero-visual{position:relative}
  .hero-img{
    position:relative;border-radius:24px;overflow:hidden;aspect-ratio:16/10;
    background:var(--c-primary-50);box-shadow:var(--shadow-card);
  }
  .hero-img img{width:100%;height:100%;object-fit:cover}
  .hero-img::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(20,66,155,.14) 0%,rgba(20,66,155,.02) 55%,rgba(20,66,155,.10) 100%);
  }
  .float-card{
    position:absolute;left:-6px;bottom:-18px;width:min(260px,80%);
    background:#fff;border:1px solid var(--c-line);border-radius:14px;
    box-shadow:var(--shadow-hover);padding:14px 16px;
  }
  @media (max-width:640px){.float-card{left:10px;bottom:-14px}}
  .float-card .mono{font-size:12px;font-weight:600;color:var(--c-primary-d);font-variant-numeric:tabular-nums;letter-spacing:.02em}
  .float-card p{font-size:12px;line-height:1.6;color:var(--c-ink-3);margin-top:6px}
  .mini-bar{height:6px;border-radius:999px;background:var(--c-line-2);overflow:hidden;margin-top:8px}
  .mini-bar span{display:block;height:100%;border-radius:999px;background:var(--c-primary)}

  /* ===== 三步流程 ===== */
  .timeline{list-style:none;display:grid;gap:20px}
  @media (min-width:768px){.timeline{grid-template-columns:repeat(3,1fr);gap:24px}}
  .timeline-item{
    position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--shadow-card);transition:box-shadow .22s,transform .22s;
  }
  .timeline-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
  .timeline-num{
    width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:600;background:var(--c-primary-50);color:var(--c-primary-d);
    margin-bottom:16px;font-variant-numeric:tabular-nums;
  }
  .timeline-item.is-done .timeline-num{background:var(--c-primary);color:#fff}
  .timeline-item h3{font-size:18px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
  .timeline-item p{font-size:14px;line-height:1.7;color:var(--c-ink-2)}
  @media (min-width:768px){
    .timeline-item::after{
      content:"";position:absolute;top:43px;right:-24px;width:24px;height:2px;background:var(--c-line);
    }
    .timeline-item:last-child::after{display:none}
    .timeline-item.is-done::after{background:var(--c-primary)}
  }

  /* ===== 非对称预览 ===== */
  .preview-grid{display:grid;gap:24px}
  @media (min-width:1024px){.preview-grid{grid-template-columns:1.55fr 1fr;align-items:stretch}}
  .preview-main{overflow:hidden;display:grid;padding:0}
  @media (min-width:640px){.preview-main{grid-template-columns:1fr 1fr}}
  .preview-main-img{position:relative;min-height:220px;background:var(--c-primary-50)}
  .preview-main-img img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
  .preview-main-body{padding:26px 24px;position:relative;display:flex;flex-direction:column;gap:12px}
  @media (min-width:1024px){.preview-main-body{padding:30px 28px}}
  .num-badge{
    position:absolute;top:16px;right:16px;
    font-size:12px;font-weight:600;color:var(--c-primary-d);background:var(--c-primary-50);
    border-radius:6px;padding:3px 8px;font-variant-numeric:tabular-nums;
  }
  .preview-main-body h3{font-size:20px;font-weight:600;color:var(--c-ink);line-height:1.4}
  .preview-main-body p{font-size:14px;line-height:1.75;color:var(--c-ink-2)}
  .preview-side{display:grid;gap:24px}
  .preview-sm{
    padding:22px 22px 22px 24px;border-left:3px solid var(--c-primary);
    display:flex;flex-direction:column;gap:8px;justify-content:center;
  }
  .preview-sm h3{font-size:17px;font-weight:600;color:var(--c-ink)}
  .preview-sm p{font-size:14px;line-height:1.7;color:var(--c-ink-2)}
  .check-list{list-style:none;display:grid;gap:8px;margin-top:4px}
  .check-list li{position:relative;padding-left:24px;font-size:14px;color:var(--c-ink-2);line-height:1.7}
  .check-list li::before{
    content:"";position:absolute;left:0;top:7px;width:14px;height:8px;
    border-left:2px solid var(--c-ok);border-bottom:2px solid var(--c-ok);
    transform:rotate(-45deg);border-radius:1px;
  }

  /* ===== 进度区 ===== */
  .progress-card{padding:26px 24px;border-left:3px solid var(--c-primary)}
  @media (min-width:1024px){.progress-card{padding:32px}}
  .progress-top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
  .progress-top h2{font-size:22px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
  @media (min-width:1024px){.progress-top h2{font-size:26px}}
  .progress-meter{display:flex;align-items:center;gap:12px}
  .progress-meter .big{font-size:30px;font-weight:600;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1}
  .step-track{display:grid;gap:20px;margin-top:30px}
  @media (min-width:768px){.step-track{grid-template-columns:repeat(4,1fr);gap:0}}
  .track-node{position:relative;padding-left:34px}
  @media (min-width:768px){
    .track-node{padding-left:0;padding-top:34px}
  }
  .track-dot{
    position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
    border:2px solid var(--c-line);background:#fff;display:flex;align-items:center;justify-content:center;
  }
  @media (min-width:768px){.track-dot{left:0;top:0}}
  .track-node.is-done .track-dot{border-color:var(--c-primary);background:var(--c-primary)}
  .track-node.is-done .track-dot::after{content:"";width:6px;height:6px;border-radius:50%;background:#fff}
  .track-node.is-current .track-dot{border-color:var(--c-accent);background:var(--c-accent-50)}
  .track-node.is-current .track-dot::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
  .track-node b{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:2px}
  .track-node span{display:block;font-size:12px;color:var(--c-ink-3);line-height:1.6}
  @media (min-width:768px){
    .track-node::before{
      content:"";position:absolute;left:20px;right:0;top:9px;height:2px;background:var(--c-line);
    }
    .track-node.is-done::before{background:var(--c-primary)}
    .track-node:last-child::before{display:none}
  }
  .progress-note{font-size:13px;color:var(--c-ink-3);margin-top:24px;padding-top:16px;border-top:1px dashed var(--c-line)}

  /* ===== 数据条 ===== */
  .stats-strip{padding:0 0 56px}
  @media (min-width:1024px){.stats-strip{padding:0 0 88px}}
  .stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  @media (min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:20px}}
  .stat{background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:20px;box-shadow:var(--shadow-card)}
  .stat strong{
    display:block;font-size:28px;font-weight:600;color:var(--c-primary);
    font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-.01em;
  }
  .stat span{display:block;margin-top:4px;font-size:13px;color:var(--c-ink-3)}

  /* ===== 最新信息 ===== */
  .latest-grid{display:grid;gap:28px}
  @media (min-width:1024px){.latest-grid{grid-template-columns:2fr 1fr;gap:32px}}
  .news-list{display:flex;flex-direction:column;gap:14px}
  .news-item{
    display:block;background:#fff;border:1px solid var(--c-line);border-radius:14px;
    padding:20px 22px;transition:box-shadow .22s,transform .22s,border-color .22s;
  }
  .news-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#cfdcf4}
  .news-item:hover h3{color:var(--c-primary)}
  .news-item h3{
    font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;margin-top:10px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    transition:color .18s;
  }
  .news-item p{
    font-size:14px;line-height:1.7;color:var(--c-ink-2);margin-top:8px;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-meta{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    margin-top:14px;padding-top:12px;border-top:1px dashed var(--c-line-2);
    font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;
  }
  .news-meta .arrow{color:var(--c-primary);font-weight:600;transition:transform .18s}
  .news-item:hover .news-meta .arrow{transform:translateX(3px)}

  .side-card{padding:22px;margin-bottom:20px}
  .side-card h3{font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:14px}
  .tag-list{display:flex;flex-wrap:wrap;gap:8px}
  .tag{
    font-size:13px;padding:7px 13px;border-radius:999px;background:#fff;
    border:1px solid var(--c-line);color:var(--c-ink-2);transition:all .18s;min-height:34px;display:inline-flex;align-items:center;
  }
  .tag:hover{border-color:#c6d7f6;color:var(--c-primary);background:var(--c-primary-50)}
  .side-tip{background:var(--c-accent-50);border:1px solid #FBE3B8;border-radius:14px;padding:20px}
  .side-tip h3{font-size:15px;font-weight:600;color:#7A4E00;margin-bottom:8px}
  .side-tip p{font-size:13px;line-height:1.75;color:#8A5A00}
  .empty-state{
    background:#fff;border:1px dashed var(--c-line);border-radius:16px;
    padding:44px 24px;text-align:center;
  }
  .empty-ico{
    width:56px;height:56px;border-radius:16px;background:var(--c-primary-50);
    margin:0 auto 16px;display:flex;align-items:center;justify-content:center;
    color:var(--c-primary);font-size:22px;font-weight:700;
  }
  .empty-state p{font-size:14px;color:var(--c-ink-2)}

  /* ===== FAQ ===== */
  .faq{background:#fff;border:1px solid var(--c-line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card)}
  .faq-item{border-bottom:1px solid var(--c-line-2)}
  .faq-item:last-child{border-bottom:none}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 24px;min-height:44px;cursor:pointer;list-style:none;
    font-size:16px;font-weight:600;color:var(--c-ink);transition:background .18s,color .18s;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:#FAFCFF;color:var(--c-primary)}
  .faq-icon{position:relative;width:18px;height:18px;flex:none}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
    transition:transform .22s ease,opacity .22s ease;
  }
  .faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
  .faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
  .faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
  .faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}

  /* ===== CTA ===== */
  .cta-banner{
    position:relative;overflow:hidden;border-radius:20px;
    background:var(--c-primary-50);border:1px solid #D8E4FB;
    padding:32px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  }
  @media (min-width:1024px){.cta-banner{padding:40px 40px}}
  .cta-banner::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      linear-gradient(to right, rgba(29,91,214,.07) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(29,91,214,.07) 1px, transparent 1px);
    background-size:34px 34px;
  }
  .cta-copy{position:relative;max-width:560px}
  .cta-copy h2{font-size:22px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;line-height:1.4}
  @media (min-width:1024px){.cta-copy h2{font-size:26px}}
  .cta-copy p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--c-ink-2)}
  .cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap}

  /* ===== 页脚 ===== */
  .site-footer{background:#0E1B2E;color:#B9C5D6;margin-top:0;padding-top:56px}
  .footer-grid{display:grid;gap:32px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px;background:var(--c-primary)}
  .footer-brand strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em}
  .site-footer p{font-size:13px;line-height:1.85;color:#93A1B5;max-width:26em}
  .site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
  .site-footer ul{list-style:none;display:grid;gap:2px}
  .site-footer a{font-size:14px;color:#B9C5D6;line-height:2;transition:color .18s}
  .site-footer a:hover{color:#fff}
  .footer-bottom{
    margin-top:40px;border-top:1px solid rgba(255,255,255,.12);
    padding:18px 0 22px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:#8A97A8;
  }
  .footer-bottom .mono{font-variant-numeric:tabular-nums;letter-spacing:.02em}

  /* ===== 移动抽屉 ===== */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(14,27,46,.36);z-index:70;
    opacity:0;pointer-events:none;transition:opacity .25s ease;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;
    background:#fff;padding:18px 20px 32px;overflow-y:auto;
    transform:translateX(102%);transition:transform .26s ease;
    box-shadow:-14px 0 40px -24px rgba(14,27,46,.6);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--c-line-2)}
  .drawer-head strong{font-size:16px;font-weight:700;color:var(--c-ink)}
  .drawer nav{display:grid;margin-top:8px}
  .drawer nav a{
    display:flex;align-items:center;min-height:48px;padding:12px 4px;
    font-size:16px;color:var(--c-ink);border-bottom:1px solid var(--c-line-2);
  }
  .drawer nav a:hover{color:var(--c-primary)}
  .drawer .drawer-cta{margin-top:20px;width:100%}

  @media (max-width:1023px){
    .topnav,.subbar,.hot-tags{display:none}
    .menu-btn{display:inline-flex}
  }
  @media (max-width:520px){
    .brand-text em{display:none}
    .hero-actions .btn{width:100%}
    .cta-actions .btn{width:100%}
    .search-form{flex-wrap:wrap}
    .search-form .btn{width:100%}
  }

/* roulang page: article */
:root{
  --c-primary:#1D5BD6;
  --c-primary-d:#14429B;
  --c-primary-50:#E9F0FE;
  --c-accent:#F59E0B;
  --c-accent-50:#FFF5E4;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E3EAF5;
  --c-line-2:#EEF2F9;
  --c-ink:#0E1B2E;
  --c-ink-2:#52627A;
  --c-ink-3:#8A97A8;
  --c-ok:#17936B;
  --c-warn:#D9534F;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(14,27,46,.04), 0 10px 28px -14px rgba(14,27,46,.14);
  --shadow-hover:0 2px 4px rgba(14,27,46,.06), 0 18px 36px -16px rgba(14,27,46,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--c-ink);margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0 0 16px;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease, background-color .18s ease;}
img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:Inter,"SF Mono",Menlo,Consolas,monospace;font-weight:600;letter-spacing:.02em;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px -22px rgba(14,27,46,.45);}
.header-top{display:flex;align-items:center;gap:20px;height:66px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-d));
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px -8px rgba(29,91,214,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;color:var(--c-ink);font-weight:700;letter-spacing:-.01em;}
.brand-text small{font-size:11px;color:var(--c-ink-3);font-weight:400;letter-spacing:.02em;}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1 1 auto;gap:16px;min-width:0;}
.topnav{display:flex;align-items:center;gap:24px;min-width:0;}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:38px;min-width:44px;padding:0 12px;border-radius:10px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
  font-size:13px;font-weight:500;cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{background:var(--c-primary-50);color:var(--c-primary-d);border-color:#CBDCF8;}
.menu-toggle{display:none;}
.search-bar{border-top:1px solid var(--c-line-2);background:#fff;}
.search-bar .search-inner{display:flex;gap:10px;align-items:center;padding:12px 0;}
.search-field{flex:1 1 auto;position:relative;}
.search-field input{
  width:100%;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--c-line);background:#fff;
  padding:0 14px 0 40px;font-size:14px;color:var(--c-ink);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.search-field input::placeholder{color:var(--c-ink-3);}
.search-field input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,91,214,.14);outline:none;}
.search-field .search-ico{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--c-ink-3);font-size:14px;}
.channel-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:46px;border-top:1px solid var(--c-line-2);
}
.channel-links{display:flex;align-items:center;gap:20px;min-width:0;overflow:hidden;}
.channel-label{font-size:12px;font-weight:600;color:var(--c-ink-3);letter-spacing:.06em;}
.channel-link{font-size:13.5px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;padding:4px 0;border-bottom:2px solid transparent;}
.channel-link:hover{color:var(--c-primary);}
.channel-link.is-active{color:var(--c-primary-d);border-bottom-color:var(--c-primary);}
.channel-side{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.hot-tag{
  font-size:12px;font-weight:600;color:var(--c-accent);background:var(--c-accent-50);
  padding:4px 10px;border-radius:6px;white-space:nowrap;
}
.hot-tag.alt{color:var(--c-primary-d);background:var(--c-primary-50);}

/* ===== Buttons / badges ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(29,91,214,.95);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(20,66,155,.9);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);border-color:#CBDCF8;color:var(--c-primary-d);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-xs{min-height:34px;padding:0 12px;font-size:13px;border-radius:8px;}
.badge{display:inline-block;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;line-height:1.6;}
.badge-primary{background:var(--c-primary-50);color:var(--c-primary-d);}
.badge-accent{background:var(--c-accent-50);color:#B4720A;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link .arrow{transition:transform .18s ease;}
.text-link:hover{color:var(--c-primary-d);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:22px 0 4px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0;font-size:13px;color:var(--c-ink-3);}
.breadcrumb li{display:flex;align-items:center;gap:8px;max-width:100%;}
.breadcrumb li+li::before{content:"/";color:#C3CEDE;}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb li[aria-current="page"] span,.breadcrumb li[aria-current="page"]{color:var(--c-ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(56vw,520px);}

/* ===== Article layout ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start;padding-top:16px;padding-bottom:8px;}
.article-main{min-width:0;max-width:760px;}
.article-head{margin-bottom:26px;}
.article-head h1{
  font-size:clamp(26px,3.4vw,38px);font-weight:700;line-height:1.28;
  margin:14px 0 16px;overflow-wrap:break-word;word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C7D2E2;display:inline-block;}
.article-meta .sep-line{display:none;}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:32px;
}
.article-body{font-size:16px;line-height:1.85;color:var(--c-ink-2);overflow-wrap:break-word;word-break:break-word;max-width:760px;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{font-size:clamp(21px,2.4vw,25px);margin:38px 0 14px;padding-left:14px;position:relative;color:var(--c-ink);}
.article-body h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--c-primary);}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px;color:var(--c-ink);}
.article-body h4{font-size:16px;font-weight:600;margin:22px 0 10px;color:var(--c-ink);}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:9px;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-primary-50);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px 0 10px;width:100%;height:auto;background:#EEF2F9;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;line-height:1.7;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-primary-d);}
.article-body strong{color:var(--c-ink);font-weight:600;}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;background:#fff;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;vertical-align:top;}
.article-body th{background:var(--c-primary-50);color:var(--c-primary-d);font-weight:600;}
.article-body code{background:var(--c-line-2);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--c-primary-d);}
.article-body pre{background:#0E1B2E;color:#E6EEFB;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;}
.empty-state{padding:26px 0 8px;text-align:center;}
.empty-state h2{font-size:22px;margin-bottom:10px;padding-left:0;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--c-ink-2);margin-bottom:20px;}
.article-foot{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:30px;padding-top:22px;border-top:1px solid var(--c-line-2);}
.article-foot .note{font-size:13px;color:var(--c-ink-3);}

/* ===== Related ===== */
.related{margin-top:44px;}
.related h2{font-size:22px;margin-bottom:18px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D5E1F5;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#E9EEF7;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.rel-body h3{font-size:15px;font-weight:600;line-height:1.5;color:var(--c-ink);}
.rel-card:hover h3{color:var(--c-primary);}
.rel-body time{font-size:12px;color:var(--c-ink-3);}

/* ===== Sidebar ===== */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:20px;
}
.side-card h3{font-size:15px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary);display:inline-block;}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.toc-list li{margin:0;}
.toc-list a{display:block;font-size:13.5px;color:var(--c-ink-2);padding:7px 10px;border-radius:8px;line-height:1.5;border-left:2px solid transparent;}
.toc-list a:hover{background:var(--c-primary-50);color:var(--c-primary-d);border-left-color:var(--c-primary);}
.toc-list a.lvl-3{padding-left:22px;font-size:13px;color:var(--c-ink-3);}
.toc-empty{font-size:13px;color:var(--c-ink-3);margin:0;}
.pill-list{display:flex;flex-wrap:wrap;gap:8px;}
.pill{
  display:inline-flex;align-items:center;min-height:34px;padding:6px 12px;border-radius:8px;
  background:var(--c-bg);border:1px solid var(--c-line);font-size:13px;font-weight:500;color:var(--c-ink-2);
  transition:all .18s ease;
}
.pill:hover{background:var(--c-primary-50);border-color:#CBDCF8;color:var(--c-primary-d);}
.side-tip{background:linear-gradient(180deg,#F7FAFF,#FFFFFF);border-left:3px solid var(--c-primary);}
.side-tip h3::before{display:none;}
.side-tip p{font-size:13.5px;line-height:1.75;color:var(--c-ink-2);margin-bottom:12px;}
.side-stats{display:flex;gap:10px;margin-bottom:14px;}
.stat-box{flex:1 1 0;background:#fff;border:1px solid var(--c-line);border-radius:10px;padding:10px;text-align:center;}
.stat-box b{display:block;font-family:Inter,sans-serif;font-size:18px;color:var(--c-primary-d);font-weight:600;line-height:1.3;}
.stat-box span{font-size:11.5px;color:var(--c-ink-3);}

/* ===== CTA band ===== */
.cta-band{padding:64px 0 0;}
.cta-inner{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(135deg,#EAF1FE,#F7FAFF);
  border:1px solid #D8E4F9;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(29,91,214,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(29,91,214,.07) 1px,transparent 1px);
  background-size:26px 26px;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 55%);
  mask-image:linear-gradient(90deg,transparent,#000 55%);
}
.cta-text{position:relative;z-index:1;max-width:640px;}
.cta-text h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px;}
.cta-text p{margin:0;font-size:14.5px;color:var(--c-ink-2);}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ===== Footer ===== */
.site-footer{background:#0E1B2E;color:#B9C6D8;margin-top:76px;padding:58px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:700;}
.site-footer p{font-size:13.5px;line-height:1.8;color:#9EB0C6;margin:0;}
.site-footer h4{color:#fff;font-size:14.5px;font-weight:600;margin-bottom:14px;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:10px;font-size:13.5px;}
.site-footer a{color:#B9C6D8;}
.site-footer a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:44px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8194AB;
}
.footer-bottom .mono{color:#8194AB;font-size:12.5px;}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .menu-toggle{display:inline-flex;}
  .nav-wrap{
    position:fixed;left:0;right:0;top:66px;z-index:59;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--c-line);
    padding:10px 24px 22px;box-shadow:0 22px 40px -26px rgba(14,27,46,.5);
    max-height:calc(100vh - 66px);overflow-y:auto;
  }
  .nav-wrap.is-open{display:flex;}
  .topnav{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{padding:13px 0;min-height:44px;display:flex;align-items:center;border-bottom:1px solid var(--c-line-2);font-size:15px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .header-actions{padding-top:16px;flex-wrap:wrap;}
  .header-actions .btn{flex:1 1 160px;}
  .channel-row{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .article-main{max-width:100%;}
  .article-side{position:static;top:auto;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  html{scroll-padding-top:96px;}
  .article-card{padding:22px;}
  .article-body{font-size:15.5px;line-height:1.8;}
  .article-head h1{font-size:26px;}
  .breadcrumb li[aria-current="page"]{max-width:62vw;}
  .article-foot{flex-direction:column;align-items:stretch;}
  .article-foot .btn{width:100%;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding-top:44px;margin-top:56px;}
  .site-footer li{margin-bottom:0;}
  .site-footer li a{display:flex;align-items:center;min-height:44px;}
  .cta-band{padding-top:48px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (max-width:520px){
  .brand-text small{display:none;}
  .brand-text strong{font-size:16px;}
  .article-meta{gap:8px;font-size:12.5px;}
  .search-bar .search-inner{flex-direction:column;align-items:stretch;}
  .search-bar .search-inner .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1D5BD6;
  --c-primary-d:#14429B;
  --c-primary-50:#E9F0FE;
  --c-accent:#F59E0B;
  --c-accent-50:#FFF5E4;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E3EAF5;
  --c-line-2:#EEF2F9;
  --c-ink:#0E1B2E;
  --c-ink-2:#52627A;
  --c-ink-3:#8A97A8;
  --c-ok:#17936B;
  --c-warn:#D9534F;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:6px;
  --r-hero:24px;
  --sh-card:0 1px 2px rgba(14,27,46,.04), 0 10px 28px -14px rgba(14,27,46,.14);
  --sh-card-h:0 2px 4px rgba(14,27,46,.06), 0 18px 36px -16px rgba(14,27,46,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.mono{font-family:"Inter","SFMono-Regular",Consolas,monospace;font-weight:600;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.wrap{padding:0 24px;}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(150%) blur(8px);
  -webkit-backdrop-filter:saturate(150%) blur(8px);
  box-shadow:0 8px 24px -18px rgba(14,27,46,.35);
}
.header-top{
  display:flex;align-items:center;gap:16px;
  min-height:64px;
  transition:min-height .22s ease;
}
.site-header.is-scrolled .header-top{min-height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;
  border-radius:10px;font-weight:700;font-size:16px;
  transition:width .22s ease,height .22s ease;
}
.site-header.is-scrolled .brand-mark{width:30px;height:30px;font-size:14px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;color:var(--c-ink);font-weight:700;letter-spacing:-.01em;}
.brand-text small{font-size:11px;color:var(--c-ink-3);letter-spacing:.02em;margin-top:2px;}
.topnav{display:none;align-items:center;gap:24px;margin-left:8px;}
.topnav .nav-link{
  position:relative;
  font-size:14px;font-weight:500;color:var(--c-ink-2);
  padding:8px 0;
  min-height:44px;display:flex;align-items:center;
}
.topnav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.topnav .nav-link:hover{color:var(--c-primary);}
.topnav .nav-link:hover::after{transform:scaleX(1);}
.topnav .nav-link.is-active{color:var(--c-primary);font-weight:600;}
.topnav .nav-link.is-active::after{transform:scaleX(1);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:8px;}
.icon-btn,.dash-btn{
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink-2);font-size:15px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover,.dash-btn:hover{background:var(--c-primary-50);color:var(--c-primary);border-color:#CFDDFA;}
.dash-btn{display:flex;}
@media(min-width:1024px){
  .topnav{display:flex;}
  .dash-btn{display:none;}
}
.header-sub{
  display:none;
  align-items:center;gap:12px;
  padding:10px 24px 12px;
  border-top:1px solid var(--c-line-2);
}
@media(min-width:1024px){.header-sub{display:flex;}}
.sub-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.sub-links span{font-size:12px;color:var(--c-ink-3);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:12px;font-weight:600;line-height:1.5;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:#D9E5FD;color:var(--c-primary-d);}
.tag-accent{background:var(--c-accent-50);color:#9A6203;}
.tag-accent:hover{background:#FCEBCB;color:#7C4E02;}
.header-sub .btn{margin-left:auto;}

/* 搜索条 */
.search-bar{padding:0 20px 14px;}
@media(min-width:768px){.search-bar{padding:0 24px 14px;}}
.search-form{display:flex;gap:10px;}
.search-form input{
  flex:1 1 auto;height:44px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);padding:0 14px;
  font-size:14px;color:var(--c-ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input::placeholder{color:var(--c-ink-3);}
.search-form input:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(29,91,214,.14);
}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(14,27,46,.35);
  display:flex;justify-content:flex-end;
}
.drawer[hidden]{display:none;}
.drawer-panel{
  width:min(320px,86vw);height:100%;
  background:var(--c-surface);
  padding:20px;
  display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
  box-shadow:-16px 0 40px -24px rgba(14,27,46,.45);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.drawer-head strong{color:var(--c-ink);font-size:15px;}
.drawer-panel a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--c-ink-2);font-weight:500;
}
.drawer-panel a.drawer-link:hover{background:var(--c-primary-50);color:var(--c-primary);}
.drawer-panel a.drawer-link.is-active{background:var(--c-primary-50);color:var(--c-primary);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn i{font-size:13px;transition:transform .18s ease;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -14px rgba(29,91,214,.9);}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 14px 26px -16px rgba(20,66,155,.9);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-primary-50);border-color:#CFDDFA;}
.btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:8px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:14px;
}
.link-arrow i{transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 面包屑 ============ */
.crumb{padding:18px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#C3CDDC;}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb [aria-current="page"]{color:var(--c-ink);font-weight:600;}

/* ============ Hero ============ */
.hero{padding:28px 0 48px;}
@media(min-width:1024px){.hero{padding:36px 0 72px;}}
.hero-grid{display:grid;gap:36px;align-items:center;}
@media(min-width:1024px){.hero-grid{grid-template-columns:6fr 5fr;gap:52px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-50);color:var(--c-primary-d);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:6px 12px;border-radius:var(--r-badge);
}
.hero h1{
  margin:18px 0 0;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.25;letter-spacing:-.01em;
  font-weight:700;color:var(--c-ink);
}
.hero .lede{margin-top:16px;font-size:16px;line-height:1.8;color:var(--c-ink-2);max-width:34em;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;}
@media(max-width:519px){.hero-actions .btn{width:100%;}}
.status-line{
  margin-top:28px;display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;color:var(--c-ink-3);
}
.status-line li{display:flex;align-items:center;gap:8px;}
.dot{width:7px;height:7px;border-radius:50%;display:inline-block;flex:0 0 auto;}
.dot-ok{background:var(--c-ok);}
.dot-accent{background:var(--c-accent);}
.dot-primary{background:var(--c-primary);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-hero);
  background:var(--c-primary-50);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  border-radius:var(--r-hero);
  background:linear-gradient(115deg,rgba(233,240,254,.55) 0%,rgba(245,248,253,0) 46%);
  pointer-events:none;
}
.float-card{
  position:absolute;left:16px;bottom:-18px;
  width:min(280px,88%);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-primary);
  border-radius:12px;
  padding:14px 16px;
  box-shadow:var(--sh-card-h);
  z-index:2;
}
.float-card .fc-title{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-3);}
.float-card .fc-title b{color:var(--c-primary);font-size:13px;font-family:"Inter",monospace;}
.fc-track{margin-top:10px;height:6px;border-radius:999px;background:var(--c-line-2);overflow:hidden;}
.fc-track span{display:block;height:100%;width:66%;background:var(--c-primary);border-radius:999px;}
.fc-note{margin-top:8px;font-size:12px;color:var(--c-ink-3);}

/* ============ 通用板块 ============ */
.section{padding:48px 0;}
@media(min-width:1024px){.section{padding:80px 0;}}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line-2);border-bottom:1px solid var(--c-line-2);}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;
  font-weight:700;color:var(--c-ink);letter-spacing:-.01em;
}
.section-head p{margin-top:12px;font-size:15px;color:var(--c-ink-2);}

/* ============ 图文交替 ============ */
.split{
  display:grid;gap:28px;align-items:center;
  padding:28px 0;
  border-top:1px solid var(--c-line-2);
}
.split:first-child{border-top:none;padding-top:0;}
@media(min-width:900px){
  .split{grid-template-columns:1fr 1fr;gap:56px;padding:36px 0;}
  .split.is-reverse .split-media{order:2;}
}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);
  background:var(--c-primary-50);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
}
.split-body h2{
  font-size:clamp(20px,2.2vw,25px);line-height:1.4;
  font-weight:700;color:var(--c-ink);
  display:flex;align-items:flex-start;gap:12px;
}
.num-badge{
  flex:0 0 auto;margin-top:3px;
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:24px;padding:0 8px;
  border-radius:6px;background:var(--c-primary-50);
  color:var(--c-primary);font-size:12px;font-weight:700;
  font-family:"Inter","PingFang SC",sans-serif;letter-spacing:.04em;
}
.split-body p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.checklist{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.checklist li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;line-height:1.7;color:var(--c-ink-2);
}
.checklist li i{
  flex:0 0 auto;margin-top:5px;font-size:13px;color:var(--c-primary);
}
.checklist li b{color:var(--c-ink);font-weight:600;}

/* ============ 三步流程 ============ */
.steps{position:relative;display:grid;gap:26px;margin-top:8px;}
@media(min-width:768px){
  .steps{grid-template-columns:repeat(3,1fr);gap:24px;padding-top:0;}
  .steps::before{
    content:"";position:absolute;left:0;right:0;top:22px;height:2px;
    background:linear-gradient(90deg,var(--c-primary) 0%,var(--c-primary) 58%,var(--c-line) 58%,var(--c-line) 100%);
    z-index:0;
  }
}
.step{position:relative;z-index:1;}
.step-dot{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-surface);border:2px solid var(--c-primary);
  color:var(--c-primary);font-weight:700;font-size:14px;
  font-family:"Inter","PingFang SC",sans-serif;
  box-shadow:0 0 0 6px var(--c-bg);
}
.section-alt .step-dot{box-shadow:0 0 0 6px var(--c-surface);}
@media(max-width:767px){
  .steps::before{content:"";position:absolute;left:21px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--c-primary) 0%,var(--c-primary) 58%,var(--c-line) 58%,var(--c-line) 100%);}
  .step{display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;}
  .step-body{padding-top:2px;}
}
.step-body{margin-top:16px;}
@media(max-width:767px){.step-body{margin-top:0;}}
.step-body h3{font-size:17px;font-weight:600;color:var(--c-ink);}
.step-body p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--c-ink-2);}
.step-body .mini{
  display:inline-block;margin-top:12px;
  font-size:12px;color:var(--c-ink-3);
  border-top:1px dashed var(--c-line);padding-top:10px;width:100%;
}

/* ============ 卡点区 ============ */
.pit-grid{display:grid;gap:24px;}
@media(min-width:1024px){.pit-grid{grid-template-columns:7fr 5fr;gap:32px;align-items:start;}}
.pit-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;}
.pit-item{display:flex;gap:16px;padding:20px 24px;border-top:1px solid var(--c-line-2);transition:background .2s ease;}
.pit-item:first-child{border-top:none;}
.pit-item:hover{background:#FBFDFF;}
.pit-item .pit-no{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;
  background:var(--c-primary-50);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;font-family:"Inter",sans-serif;
}
.pit-item h3{font-size:15px;font-weight:600;color:var(--c-ink);}
.pit-item p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--c-ink-2);}
.aside-card{
  background:var(--c-accent-50);
  border:1px solid #F7E2BC;
  border-radius:var(--r-card);
  padding:24px;
}
.aside-card h3{font-size:16px;font-weight:700;color:#7C4E02;display:flex;align-items:center;gap:8px;}
.aside-card h3 i{font-size:14px;}
.aside-card p{margin-top:12px;font-size:14px;line-height:1.8;color:#6F4B0E;}
.aside-card ul{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.aside-card li{font-size:13px;color:#6F4B0E;display:flex;gap:8px;line-height:1.7;}
.aside-card li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent);margin-top:8px;flex:0 0 auto;}

/* ============ FAQ ============ */
.faq-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.faq-item{border-top:1px solid var(--c-line-2);}
.faq-item:first-child{border-top:none;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--c-ink);
  transition:background .2s ease,color .2s ease;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FBFDFF;color:var(--c-primary);}
.faq-icon{
  margin-left:auto;flex:0 0 auto;position:relative;
  width:28px;height:28px;border-radius:8px;background:var(--c-primary-50);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:8px;right:8px;top:13px;height:2px;}
.faq-icon::after{top:8px;bottom:8px;left:13px;width:2px;}
details[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.faq-answer p+p{margin-top:10px;}

/* ============ CTA ============ */
.cta-band{
  border-radius:20px;
  background-color:var(--c-primary-50);
  background-image:
    linear-gradient(rgba(29,91,214,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,91,214,.07) 1px,transparent 1px);
  background-size:28px 28px;
  border:1px solid #D7E3FB;
  padding:32px 24px;
  display:grid;gap:22px;align-items:center;
}
@media(min-width:860px){
  .cta-band{grid-template-columns:1fr auto;padding:40px;gap:32px;}
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--c-ink);line-height:1.4;}
.cta-band p{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media(max-width:519px){.cta-actions .btn{width:100%;}}
.cta-actions .btn-pill{border-radius:999px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#A9B6C8;padding:56px 0 24px;margin-top:48px;}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700;}
.site-footer p{font-size:13px;line-height:1.8;color:#8FA0B6;max-width:30em;}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.02em;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer ul a{font-size:13px;color:#A9B6C8;transition:color .18s ease;}
.site-footer ul a:hover{color:#fff;}
.site-footer ul li{min-height:20px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#7C8CA3;
}
.footer-bottom .mono{letter-spacing:.04em;}

/* 通用辅助 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* roulang page: category2 */
:root{
    --c-primary:#1D5BD6;
    --c-primary-d:#14429B;
    --c-primary-50:#E9F0FE;
    --c-accent:#F59E0B;
    --c-accent-50:#FFF5E4;
    --c-bg:#F5F8FD;
    --c-surface:#FFFFFF;
    --c-line:#E3EAF5;
    --c-line-2:#EEF2F9;
    --c-ink:#0E1B2E;
    --c-ink-2:#52627A;
    --c-ink-3:#8A97A8;
    --c-ok:#17936B;
    --c-warn:#D9534F;
    --r-card:16px;
    --r-btn:10px;
    --r-badge:6px;
    --sh-card:0 1px 2px rgba(14,27,46,.04), 0 10px 28px -14px rgba(14,27,46,.14);
    --sh-card-hover:0 2px 4px rgba(14,27,46,.06), 0 18px 36px -16px rgba(14,27,46,.20);
  }

  *,*::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",sans-serif;
    font-size:15px;
    line-height:1.75;
    color:var(--c-ink-2);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.3;font-weight:700}
  p{margin:0}
  a{color:var(--c-primary);text-decoration:none}
  img{max-width:100%;display:block}
  button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
  ::selection{background:var(--c-primary-50);color:var(--c-primary-d)}

  .wrap{max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){ .wrap{padding:0 24px} }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-line);
    transition:background .2s ease,box-shadow .2s ease;
  }
  .site-header.is-stuck{
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:saturate(180%) blur(10px);
    backdrop-filter:saturate(180%) blur(10px);
    box-shadow:0 6px 20px -14px rgba(14,27,46,.35);
  }
  .header-top-inner{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    height:66px;transition:height .2s ease;
  }
  .site-header.is-stuck .header-top-inner{height:54px}

  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-height:44px}
  .brand-mark{
    width:30px;height:30px;flex:0 0 30px;border-radius:9px;
    background:var(--c-primary);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:700;letter-spacing:0;
    box-shadow:0 6px 14px -8px rgba(29,91,214,.9);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-text strong{font-size:16px;color:var(--c-ink);letter-spacing:-.01em}
  .brand-text small{font-size:12px;color:var(--c-ink-3);font-weight:400}
  .site-header.is-stuck .brand-text small{display:none}

  .header-tools{display:flex;align-items:center;gap:10px}
  .hot-tag{
    display:inline-flex;align-items:center;height:30px;padding:0 12px;
    border-radius:999px;background:var(--c-primary-50);color:var(--c-primary-d);
    font-size:12px;font-weight:600;transition:background .18s ease,color .18s ease;
  }
  .hot-tag:hover{background:#dbe7fd;color:var(--c-primary-d)}
  .icon-btn{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:10px;color:var(--c-ink-2);
    border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease;
  }
  .icon-btn:hover{background:var(--c-primary-50);color:var(--c-primary-d);border-color:var(--c-line)}
  .icon-btn svg{width:18px;height:18px}

  .search-panel{display:none;align-items:center;gap:8px}
  .search-panel.is-open{display:flex}
  .search-panel input{
    height:38px;width:190px;border:1px solid var(--c-line);border-radius:10px;
    padding:0 12px;font-size:14px;color:var(--c-ink);background:#fff;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .search-panel input::placeholder{color:var(--c-ink-3)}
  .search-panel input:focus{
    outline:none;border-color:var(--c-primary);
    box-shadow:0 0 0 3px rgba(29,91,214,.14);
  }
  .search-submit{
    height:38px;padding:0 14px;border-radius:10px;
    background:var(--c-primary);color:#fff;font-size:13px;font-weight:600;
    transition:background .18s ease,transform .12s ease;
  }
  .search-submit:hover{background:var(--c-primary-d)}
  .search-submit:active{transform:translateY(1px)}

  .header-nav{border-top:1px solid var(--c-line-2)}
  .site-header.is-stuck .header-nav{border-top-color:transparent}
  .header-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:50px}
  .topnav{display:flex;align-items:center;gap:26px;height:100%}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:100%;
    font-size:14px;font-weight:500;color:var(--c-ink-2);
    transition:color .18s ease;white-space:nowrap;
  }
  .nav-link:hover{color:var(--c-primary)}
  .nav-link.is-active{color:var(--c-primary);font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
    border-radius:2px;background:var(--c-primary);
  }
  .nav-cta{
    display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;
    border-radius:var(--r-btn);background:var(--c-primary);color:#fff;
    font-size:13px;font-weight:600;
    transition:background .18s ease,transform .12s ease,box-shadow .18s ease;
  }
  .nav-cta:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 8px 18px -10px rgba(20,66,155,.8)}
  .nav-cta:active{transform:translateY(0)}

  .mobile-drawer{
    display:none;border-top:1px solid var(--c-line);background:#fff;
    padding:12px 0 18px;
  }
  .mobile-drawer.is-open{display:block}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 4px;font-size:15px;font-weight:500;color:var(--c-ink);
    border-bottom:1px solid var(--c-line-2);
  }
  .drawer-link:hover{color:var(--c-primary)}
  .drawer-link.is-active{color:var(--c-primary);font-weight:600}
  .drawer-cta{
    display:flex;align-items:center;justify-content:center;
    min-height:46px;margin-top:16px;border-radius:var(--r-btn);
    background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  }

  /* ============ 通用组件 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 20px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;text-decoration:none;
    transition:background .18s ease,color .18s ease,transform .12s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(29,91,214,.95)}
  .btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(20,66,155,.9)}
  .btn-primary:active{transform:translateY(0);box-shadow:none}
  .btn-ghost{background:#fff;color:var(--c-primary-d);border:1px solid var(--c-line)}
  .btn-ghost:hover{background:var(--c-primary-50);border-color:#c9dbfb}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:var(--r-badge);
    background:var(--c-primary-50);color:var(--c-primary-d);
    font-size:12px;font-weight:600;line-height:1.6;
  }
  .badge-accent{background:var(--c-accent-50);color:#A16207}
  .badge-ok{background:#E6F5EF;color:#12795A}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--c-primary);
  }
  .link-arrow svg{width:14px;height:14px;transition:transform .18s ease}
  .link-arrow:hover svg{transform:translateX(3px)}
  .link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

  .section{padding:56px 0}
  @media (min-width:1024px){ .section{padding:88px 0} }
  .section-head{margin-bottom:32px;max-width:760px}
  .section-head h2{font-size:24px;letter-spacing:-.01em}
  @media (min-width:1024px){ .section-head h2{font-size:28px} }
  .section-head p{margin-top:12px;font-size:15px;color:var(--c-ink-2);line-height:1.8}

  /* ============ 面包屑 ============ */
  .breadcrumb{padding:18px 0 0}
  .breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3)}
  .breadcrumb a{color:var(--c-ink-2)}
  .breadcrumb a:hover{color:var(--c-primary)}
  .breadcrumb .sep{color:#C3CEDD}
  .breadcrumb .current{color:var(--c-ink-3)}

  /* ============ Hero ============ */
  .hero{position:relative;padding:32px 0 8px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(680px 320px at 88% 4%, rgba(29,91,214,.10), transparent 70%),
      radial-gradient(520px 260px at 6% 92%, rgba(245,158,11,.10), transparent 70%);
    pointer-events:none;
  }
  .hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
  @media (min-width:1024px){
    .hero-inner{grid-template-columns:1.06fr .94fr;gap:56px}
  }
  .hero h1{
    font-size:clamp(28px,3.6vw,42px);
    line-height:1.25;letter-spacing:-.01em;margin-top:16px;
  }
  .hero h1 .hl{color:var(--c-primary)}
  .hero-lead{margin-top:16px;font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:640px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  @media (max-width:639px){
    .hero-actions{flex-direction:column;align-items:stretch}
    .hero-actions .btn{width:100%}
  }
  .status-strip{
    display:flex;flex-wrap:wrap;align-items:center;gap:18px;
    margin-top:26px;padding-top:18px;border-top:1px dashed var(--c-line);
  }
  .status-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2)}
  .dot{width:7px;height:7px;border-radius:50%;background:var(--c-primary);flex:0 0 7px}
  .dot.accent{background:var(--c-accent)}
  .dot.ok{background:var(--c-ok)}

  .hero-media{position:relative}
  .hero-figure{
    position:relative;border-radius:24px;overflow:hidden;
    border:1px solid var(--c-line);background:#E9EFF9;
    box-shadow:var(--sh-card);aspect-ratio:16/10;
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover}
  .hero-figure::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(23,60,125,.16),rgba(23,60,125,.04) 55%,rgba(255,255,255,.14));
    pointer-events:none;
  }
  .hero-float{
    position:absolute;right:12px;bottom:-18px;width:min(258px,84%);
    background:#fff;border:1px solid var(--c-line);border-radius:14px;
    box-shadow:0 16px 34px -18px rgba(14,27,46,.35);
    padding:14px 16px;
  }
  @media (min-width:768px){ .hero-float{right:-14px;bottom:-22px} }
  .hero-float-head{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-3)}
  .hero-float-num{font-weight:700;color:var(--c-primary);font-size:13px;letter-spacing:.02em}
  .hero-float-bar{height:6px;border-radius:999px;background:var(--c-line-2);margin:10px 0 8px;overflow:hidden}
  .hero-float-bar i{display:block;height:100%;width:75%;border-radius:999px;background:var(--c-primary)}
  .hero-float p{font-size:12px;color:var(--c-ink-3);line-height:1.6}

  /* ============ 统计细带 ============ */
  .metrics{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:#fff}
  .metrics-inner{
    display:grid;grid-template-columns:repeat(2,1fr);gap:0;
  }
  @media (min-width:768px){ .metrics-inner{grid-template-columns:repeat(4,1fr)} }
  .metric{padding:20px 4px;text-align:center;border-right:1px solid var(--c-line-2);border-bottom:1px solid var(--c-line-2)}
  .metrics-inner .metric:nth-child(2n){border-right:none}
  @media (min-width:768px){
    .metrics-inner .metric{border-bottom:none}
    .metrics-inner .metric:nth-child(2n){border-right:1px solid var(--c-line-2)}
    .metrics-inner .metric:last-child{border-right:none}
  }
  .metric b{
    display:block;font-size:24px;font-weight:700;color:var(--c-ink);
    font-family:Inter,"PingFang SC",system-ui,sans-serif;letter-spacing:-.01em;
  }
  .metric span{font-size:13px;color:var(--c-ink-3)}

  /* ============ 2x2 卡片网格 ============ */
  .verify-grid{display:grid;grid-template-columns:1fr;gap:20px}
  @media (min-width:640px){ .verify-grid{grid-template-columns:repeat(2,1fr);gap:24px} }
  .verify-card{
    position:relative;background:var(--c-surface);
    border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:26px 24px 24px;box-shadow:var(--sh-card);overflow:hidden;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    display:flex;flex-direction:column;
  }
  .verify-card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);
  }
  .verify-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:#d3e2fa}
  .verify-card:hover h3{color:var(--c-primary)}
  .verify-card h3{font-size:19px;font-weight:600;margin:14px 0 10px;transition:color .18s ease}
  .verify-card p{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:18px}
  .verify-card .link-arrow{margin-top:auto}
  .num-badge{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:34px;height:24px;padding:0 8px;border-radius:var(--r-badge);
    background:var(--c-primary-50);color:var(--c-primary-d);
    font-size:12px;font-weight:700;letter-spacing:.04em;
    font-family:Inter,"PingFang SC",system-ui,sans-serif;
  }

  /* ============ 情况对照 ============ */
  .compare{display:grid;grid-template-columns:1fr;gap:24px}
  @media (min-width:1024px){ .compare{grid-template-columns:1.35fr .65fr;gap:32px;align-items:start} }
  .case-list{display:grid;gap:14px}
  .case-item{
    display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
    background:#fff;border:1px solid var(--c-line);border-radius:14px;
    padding:18px 20px;box-shadow:var(--sh-card);
    transition:transform .18s ease,box-shadow .18s ease;
  }
  .case-item:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover)}
  .case-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
  .case-item p{font-size:14px;color:var(--c-ink-2);line-height:1.75}
  .case-tag{
    display:inline-flex;align-items:center;justify-content:center;
    width:28px;height:28px;border-radius:9px;flex:0 0 28px;
    background:var(--c-primary-50);color:var(--c-primary-d);
    font-size:12px;font-weight:700;font-family:Inter,system-ui,sans-serif;
  }
  .aside-note{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh-card);
    border-left:3px solid var(--c-accent);
  }
  .aside-note h3{font-size:17px;margin-bottom:12px}
  .aside-note ul{display:grid;gap:12px;margin-top:4px}
  .aside-note li{
    position:relative;padding-left:20px;font-size:14px;line-height:1.75;color:var(--c-ink-2);
  }
  .aside-note li::before{
    content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
    background:var(--c-accent);
  }
  .aside-note .mini-link{margin-top:18px;display:inline-flex}

  /* ============ 步骤时间线 ============ */
  .flow{position:relative;display:grid;grid-template-columns:1fr;gap:22px}
  @media (min-width:768px){
    .flow{grid-template-columns:repeat(4,1fr);gap:20px}
  }
  .flow-step{position:relative;padding-left:40px}
  @media (min-width:768px){
    .flow-step{padding-left:0;padding-top:44px}
  }
  .flow-node{
    position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:50%;
    background:#fff;border:2px solid var(--c-primary);color:var(--c-primary-d);
    display:flex;align-items:center;justify-content:center;
    font-size:12px;font-weight:700;font-family:Inter,system-ui,sans-serif;z-index:2;
  }
  @media (min-width:768px){ .flow-node{left:0;top:0} }
  .flow-step::after{
    content:"";position:absolute;left:13px;top:34px;bottom:-18px;width:2px;
    background:var(--c-line);
  }
  .flow-step:last-child::after{display:none}
  @media (min-width:768px){
    .flow-step::after{
      left:34px;top:13px;bottom:auto;right:-20px;width:auto;height:2px;background:var(--c-line);
    }
    .flow-step:last-child::after{display:none}
  }
  .flow-step h3{font-size:16px;font-weight:600;margin-bottom:6px}
  .flow-step p{font-size:14px;line-height:1.75;color:var(--c-ink-2)}

  /* ============ 注意事项 ============ */
  .notice-band{
    background:var(--c-accent-50);
    border:1px solid #FCE7C0;border-left:3px solid var(--c-accent);
    border-radius:var(--r-card);padding:22px 24px;
  }
  .notice-band h3{font-size:17px;margin-bottom:10px}
  .notice-band ul{display:grid;gap:10px}
  .notice-band li{position:relative;padding-left:18px;font-size:14px;line-height:1.78;color:#6B5330}
  .notice-band li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
    background:var(--c-accent);
  }

  /* ============ FAQ ============ */
  .faq-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--sh-card);overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--c-line-2)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:60px;padding:16px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
    transition:color .18s ease,background .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--c-primary);background:#FBFDFF}
  .faq-icon{
    position:relative;flex:0 0 20px;width:20px;height:20px;border-radius:50%;
    background:var(--c-primary-50);
    transition:transform .2s ease,background .2s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--c-primary-d);
    border-radius:2px;transform:translate(-50%,-50%);
  }
  .faq-icon::before{width:10px;height:2px}
  .faq-icon::after{width:2px;height:10px;transition:opacity .2s ease}
  .faq-item[open] .faq-icon::after{opacity:0}
  .faq-item[open] .faq-icon{transform:rotate(180deg);background:#dbe7fd}
  .faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:820px}

  /* ============ CTA 横幅 ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:20px;
    background:var(--c-primary-50);
    border:1px solid #D5E3FB;
    padding:32px 24px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(to right,rgba(29,91,214,.08) 1px,transparent 1px),
      linear-gradient(to bottom,rgba(29,91,214,.08) 1px,transparent 1px);
    background-size:28px 28px;
    -webkit-mask-image:radial-gradient(420px 220px at 82% 20%,#000,transparent 78%);
    mask-image:radial-gradient(420px 220px at 82% 20%,#000,transparent 78%);
    pointer-events:none;
  }
  .cta-inner{position:relative;display:flex;flex-direction:column;gap:22px;align-items:flex-start}
  @media (min-width:900px){
    .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;padding:8px}
  }
  .cta-inner h2{font-size:22px;letter-spacing:-.01em}
  @media (min-width:1024px){ .cta-inner h2{font-size:26px} }
  .cta-inner p{margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.8;max-width:560px}
  .cta-inner .btn{flex:0 0 auto}

  /* ============ 页脚 ============ */
  .site-footer{background:#0E1B2E;color:#A9B7CB;padding:56px 0 26px;margin-top:8px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:36px} }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand strong{font-size:16px;color:#fff;letter-spacing:-.01em}
  .site-footer p{font-size:14px;line-height:1.8;color:#A9B7CB;max-width:340px}
  .site-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px}
  .site-footer ul{display:grid;gap:10px}
  .site-footer ul a{
    display:inline-flex;align-items:center;min-height:24px;
    font-size:14px;color:#A9B7CB;transition:color .18s ease;
  }
  .site-footer ul a:hover{color:#fff}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
    margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:#8A97A8;
  }
  .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.04em}

  /* 移动端适配 */
  @media (max-width:767px){
    .header-nav{display:none}
    .hot-tag{display:none}
    .search-panel input{width:150px}
    .cta-band{padding:26px 20px}
    .hero-float{position:static;width:100%;margin-top:16px;box-shadow:var(--sh-card)}
    .hero-figure{margin-bottom:0}
  }
  @media (max-width:1023px){
    .hero{padding-top:20px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  }

/* roulang page: category3 */
:root{
  --c-primary:#1D5BD6;
  --c-primary-d:#14429B;
  --c-primary-50:#E9F0FE;
  --c-accent:#F59E0B;
  --c-accent-50:#FFF5E4;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-line:#E3EAF5;
  --c-line-2:#EEF2F9;
  --c-ink:#0E1B2E;
  --c-ink-2:#52627A;
  --c-ink-3:#8A97A8;
  --c-ok:#17936B;
  --c-warn:#D9534F;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --r-hero:24px;
  --sh-card:0 1px 2px rgba(14,27,46,.04),0 10px 28px -14px rgba(14,27,46,.14);
  --sh-card-h:0 2px 4px rgba(14,27,46,.06),0 18px 36px -16px rgba(14,27,46,.20);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-2);
  background:var(--c-bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,box-shadow .18s ease,transform .18s ease;}
a:hover{color:var(--c-primary-d);}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.wrap{padding:0 24px;}}
.mono{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(14,27,46,.5);}
.header-top-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding-top:14px;padding-bottom:14px;
  transition:padding .22s ease;
}
.site-header.is-scrolled .header-top-inner{padding-top:8px;padding-bottom:8px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);min-height:44px;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(150deg,var(--c-primary),var(--c-primary-d));
  color:#fff;font-weight:700;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(29,91,214,.75);
  transition:width .22s ease,height .22s ease,flex-basis .22s ease,font-size .22s ease;
}
.site-header.is-scrolled .brand-mark{width:32px;height:32px;flex-basis:32px;font-size:15px;border-radius:9px;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-ink-3);margin-top:2px;}
.header-tools{display:flex;align-items:center;gap:10px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-input);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box i{color:var(--c-ink-3);font-size:13px;}
.search-box input{
  border:0;outline:none;background:transparent;
  width:180px;font-size:14px;color:var(--c-ink);height:100%;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,91,214,.14);}
.hot-tag{
  display:inline-flex;align-items:center;height:32px;padding:0 12px;
  font-size:12.5px;font-weight:600;color:var(--c-primary-d);
  background:var(--c-primary-50);border-radius:999px;
  transition:background-color .18s ease,color .18s ease;
}
.hot-tag:hover{background:#dbe7fd;color:var(--c-primary-d);}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  font-size:16px;
}
.header-bottom{border-top:1px solid var(--c-line-2);}
.header-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:52px;}
.topnav{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:52px;font-size:14px;font-weight:500;color:var(--c-ink-2);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:10px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(.5);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{height:34px;padding:0 16px;font-size:13px;}

/* mobile drawer */
.mobile-drawer{
  display:none;border-top:1px solid var(--c-line);
  background:#fff;padding:10px 0 18px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:48px;
  padding:0 20px;font-size:15px;font-weight:500;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line-2);
}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-50);}
.mobile-drawer .drawer-cta{margin:14px 20px 0;justify-content:center;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;border:0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-sm{min-height:36px;padding:0 16px;font-size:13.5px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(29,91,214,.85);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(20,66,155,.85);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -12px rgba(20,66,155,.8);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-line);}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-d);border-color:#cfdffb;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- crumb ---------- */
.crumb{padding:18px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#c6d0de;}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb li[aria-current] span,.crumb li[aria-current]{color:var(--c-ink-3);}

/* ---------- hero ---------- */
.hero{padding:26px 0 56px;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){
  .hero{padding:36px 0 72px;}
  .hero-grid{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:56px;}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--r-badge);
  background:var(--c-accent-50);color:#9a6300;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.eyebrow i{font-size:11px;color:var(--c-accent);}
.hero h1{
  margin-top:18px;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.25;letter-spacing:-.01em;font-weight:700;color:var(--c-ink);
}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.75;color:var(--c-ink-2);max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-status{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:13px;color:var(--c-ink-2);}
.hero-status li{display:inline-flex;align-items:center;gap:8px;}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;}
.dot-ok{background:var(--c-ok);box-shadow:0 0 0 3px rgba(23,147,107,.14);}
.dot-accent{background:var(--c-accent);box-shadow:0 0 0 3px rgba(245,158,11,.16);}
.dot-ink{background:#8A97A8;box-shadow:0 0 0 3px rgba(138,151,168,.16);}
.hero-card{position:relative;}
.hero-figure{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  border:1px solid var(--c-line);background:var(--c-line-2);
  box-shadow:var(--sh-card);aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(29,91,214,.10),rgba(29,91,214,.02) 46%,rgba(255,255,255,.30));
  pointer-events:none;
}
.float-card{
  position:absolute;left:16px;bottom:-18px;right:auto;
  width:238px;padding:14px 16px;
  background:#fff;border:1px solid var(--c-line);border-radius:14px;
  box-shadow:0 16px 34px -18px rgba(14,27,46,.34);
  border-left:3px solid var(--c-primary);
}
.float-label{display:block;font-size:12px;color:var(--c-ink-3);}
.float-bar{margin-top:8px;height:8px;border-radius:999px;background:var(--c-line-2);overflow:hidden;}
.float-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-primary),#4f80e6);}
.float-val{display:block;margin-top:8px;font-size:13px;font-weight:600;color:var(--c-ink);font-variant-numeric:tabular-nums;}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--c-ink);
  line-height:1.35;letter-spacing:-.01em;
}
.section-head p{margin-top:12px;font-size:15px;color:var(--c-ink-2);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px;}

.layout-2col{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:1024px){
  .layout-2col{grid-template-columns:minmax(0,1fr) 320px;gap:40px;}
}

/* ---------- timeline ---------- */
.timeline{position:relative;display:flex;flex-direction:column;gap:0;}
.tl-item{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:21px;top:50px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--c-primary-50),var(--c-line));
}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:relative;z-index:1;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:1px solid #cfdffb;color:var(--c-primary);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px -12px rgba(29,91,214,.9);
}
.tl-item.is-done .tl-num{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.tl-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.tl-body:hover{box-shadow:var(--sh-card-h);transform:translateY(-2px);border-color:#d6e2f6;}
.tl-body h3{font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.4;}
.tl-body p{margin-top:10px;font-size:15px;line-height:1.78;color:var(--c-ink-2);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-tags li{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-50);color:var(--c-primary-d);
  font-size:12px;font-weight:600;
}
.tl-tags li i{font-size:10px;color:var(--c-primary);}

/* ---------- sidebar ---------- */
.side-col{display:flex;flex-direction:column;gap:18px;}
@media (min-width:1024px){.side-col{position:sticky;top:96px;align-self:start;}}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-card);
}
.side-card h4{font-size:15px;font-weight:600;color:var(--c-ink);display:flex;align-items:center;gap:8px;}
.side-card h4 i{color:var(--c-primary);font-size:13px;}
.side-links{margin-top:14px;display:flex;flex-direction:column;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--c-ink-2);font-weight:500;
  transition:background-color .18s ease,color .18s ease,padding-left .18s ease;
}
.side-links a i{font-size:11px;color:var(--c-ink-3);transition:transform .18s ease,color .18s ease;}
.side-links a:hover{background:var(--c-primary-50);color:var(--c-primary-d);padding-left:16px;}
.side-links a:hover i{transform:translateX(2px);color:var(--c-primary);}
.side-note{background:var(--c-accent-50);border-color:#f7e3bd;box-shadow:none;}
.side-note h4{color:#8a5b00;}
.side-note h4 i{color:var(--c-accent);}
.side-note p{margin-top:10px;font-size:13.5px;line-height:1.75;color:#7a5a13;}
.side-media{padding:0;overflow:hidden;}
.side-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--c-line-2);}
.side-media figcaption{padding:12px 16px 16px;font-size:12.5px;color:var(--c-ink-3);line-height:1.6;}

/* ---------- case cards ---------- */
.case-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:700px){.case-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.case-grid{grid-template-columns:1fr 1fr 1.15fr;}}
.case-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.case-card:hover{box-shadow:var(--sh-card-h);transform:translateY(-2px);border-color:#d6e2f6;}
.case-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:var(--c-primary);opacity:.85;
}
.case-card h3{margin-top:2px;font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.45;}
.case-card p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--c-ink-2);}
.case-card .case-meta{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:12px;
  padding:3px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-50);color:var(--c-primary-d);
  font-size:12px;font-weight:600;
}
.case-card .case-meta.warn{background:#fdeceb;color:#a33632;}
.case-card .case-meta.acc{background:var(--c-accent-50);color:#8a5b00;}

/* ---------- stats strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:1fr;gap:1px;
  background:var(--c-line);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
}
@media (min-width:768px){.stat-strip{grid-template-columns:1fr 1fr 1.3fr;}}
.stat-item{background:#fff;padding:24px;}
.stat-item .stat-k{font-size:13px;color:var(--c-ink-3);}
.stat-item .stat-v{
  display:block;margin-top:6px;font-size:28px;font-weight:700;color:var(--c-ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2;
}
.stat-item .stat-v small{font-size:14px;font-weight:600;color:var(--c-ink-2);margin-left:4px;}
.stat-item p{margin-top:8px;font-size:13px;color:var(--c-ink-2);line-height:1.7;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#cfdffb;box-shadow:var(--sh-card-h);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;min-height:44px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:12px;transition:transform .2s ease,background-color .2s ease;
}
.faq-item[open] .faq-ico{transform:rotate(45deg);background:var(--c-primary);color:#fff;}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.faq-body p+p{margin-top:10px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-50);
  border:1px solid #cfdffb;border-radius:20px;
  padding:32px 24px;
  display:grid;gap:20px;
  background-image:linear-gradient(rgba(29,91,214,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(29,91,214,.06) 1px,transparent 1px);
  background-size:26px 26px;
}
@media (min-width:860px){
  .cta-band{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:40px 40px;}
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--c-ink);line-height:1.4;}
.cta-band p{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:44em;}
.cta-band .btn{min-height:46px;}

/* ---------- footer ---------- */
.site-footer{background:#0E1B2E;color:#B9C4D4;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:28px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:9px;font-size:15px;
  background:linear-gradient(150deg,#3E77E8,var(--c-primary-d));
  box-shadow:none;
}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700;}
.site-footer p{font-size:13.5px;line-height:1.8;color:#96A3B6;}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.site-footer ul{display:flex;flex-direction:column;gap:2px;}
.site-footer li a{
  display:inline-flex;align-items:center;min-height:32px;
  font-size:13.5px;color:#A9B6C8;
  transition:color .18s ease;
}
.site-footer li a:hover{color:#fff;}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#7F8DA1;
}
.footer-bottom .mono{color:#6E7C90;}

/* ---------- responsive bits ---------- */
@media (max-width:1023px){
  .search-box{display:none;}
  .hot-tag{display:none;}
  .menu-btn{display:inline-grid;place-items:center;}
  .header-bottom{display:none;}
  .nav-cta{display:none;}
  .site-header .btn-sm{display:none;}
}
@media (max-width:640px){
  .hero-actions .btn{width:100%;}
  .float-card{position:static;width:100%;margin-top:14px;left:auto;bottom:auto;}
  .hero-card{padding-bottom:0;}
  .section{padding:48px 0;}
  .case-card{padding:20px;}
  .tl-item{grid-template-columns:36px minmax(0,1fr);gap:14px;}
  .tl-num{width:36px;height:36px;font-size:13px;}
  .tl-item::before{left:17px;top:42px;}
  .tl-body{padding:18px;}
  .cta-band{padding:26px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}