/* roulang page: index */
:root{
    --primary:#1657C8;
    --primary-deep:#0F3F97;
    --primary-soft:#EAF1FE;
    --support:#12A594;
    --support-soft:#E4F6F3;
    --accent:#F97316;
    --accent-deep:#EA6A0A;
    --bg:#F5F8FC;
    --card:#FFFFFF;
    --line:#E3EAF3;
    --line-strong:#D9E2EF;
    --text:#101C2E;
    --text-2:#55637A;
    --text-3:#8A97AB;
    --warn:#F59E0B;
    --danger:#E5484D;
    --radius-card:16px;
    --radius-btn:12px;
    --radius-pill:999px;
    --shadow-card:0 1px 2px rgba(16,28,46,.04), 0 8px 24px -12px rgba(22,87,200,.18);
    --shadow-card-hover:0 2px 6px rgba(16,28,46,.06), 0 18px 34px -14px rgba(22,87,200,.32);
    --shadow-float:0 8px 20px rgba(16,28,46,.06), 0 24px 48px -20px rgba(16,28,46,.28);
    --ease:200ms ease-out;
    --font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:var(--bg);
    font-variant-numeric:tabular-nums;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea,select{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:8px;
  }
  ::selection{background:var(--primary-soft);color:var(--primary-deep);}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:16px;
    padding-right:16px;
  }
  .section{padding:56px 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:28px;
    flex-wrap:wrap;
  }
  .section-head h2{font-size:28px;font-weight:700;line-height:1.35;letter-spacing:-.01em;}
  .section-head h3{font-size:20px;font-weight:600;line-height:1.4;}
  .section-sub{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.7;max-width:640px;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--primary-deep);
    background:var(--primary-soft);
    border-radius:var(--radius-pill);
    padding:6px 14px;
    font-weight:600;
  }
  .text-2{color:var(--text-2);}
  .text-3{color:var(--text-3);}

  /* ---------- Top bar ---------- */
  .topbar{
    background:var(--primary-deep);
    color:#EAF1FE;
    font-size:13px;
    line-height:1.6;
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:38px;
    gap:16px;
  }
  .topbar a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:1px;transition:var(--ease);}
  .topbar a:hover{color:#fff;border-color:#fff;}
  .topbar-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#4ADEC6;margin-right:8px;vertical-align:middle;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--line);
    box-shadow:0 2px 12px -8px rgba(16,28,46,.18);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    min-height:72px;
  }
  .logo{display:flex;align-items:center;gap:10px;min-height:44px;}
  .logo-mark{
    width:40px;height:40px;flex:0 0 40px;
    border-radius:12px;
    background:linear-gradient(140deg,var(--primary),var(--primary-deep));
    display:flex;align-items:center;justify-content:center;
    color:#fff;
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.15;}
  .logo-text b{font-size:19px;font-weight:700;color:var(--primary-deep);letter-spacing:.01em;}
  .logo-text span{font-size:12px;color:var(--text-3);letter-spacing:.22em;}
  .nav{display:flex;align-items:center;gap:4px;}
  .nav a{
    position:relative;
    display:inline-flex;
    align-items:center;
    min-height:44px;
    padding:0 12px;
    font-size:15px;
    color:var(--text-2);
    border-radius:10px;
    transition:var(--ease);
  }
  .nav a::after{
    content:"";
    position:absolute;
    left:12px;right:12px;bottom:6px;
    height:2px;
    background:var(--primary);
    border-radius:2px;
    transform:scaleX(0);
    transform-origin:center;
    transition:transform var(--ease);
  }
  .nav a:hover{color:var(--primary-deep);background:var(--primary-soft);}
  .nav a:hover::after{transform:scaleX(1);}
  .nav a.active{color:var(--primary-deep);font-weight:600;}
  .nav a.active::after{transform:scaleX(1);}
  .header-actions{display:flex;align-items:center;gap:10px;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 20px;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px -8px rgba(22,87,200,.7);}
  .btn-primary:hover{background:var(--primary-deep);box-shadow:0 10px 22px -8px rgba(15,63,151,.7);}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
  .btn-ghost:hover{background:var(--primary-soft);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px -8px rgba(249,115,22,.75);}
  .btn-accent:hover{background:var(--accent-deep);}
  .btn-accent:active{transform:translateY(1px);}
  .btn-link{
    min-height:44px;
    padding:0 10px;
    background:transparent;
    color:var(--primary-deep);
    border:none;
  }
  .btn-link:hover{color:var(--primary);background:var(--primary-soft);}
  .btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;}
  .btn-sm{min-height:38px;padding:0 14px;font-size:14px;border-radius:10px;}

  .burger{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border:1px solid var(--line-strong);
    background:#fff;
    border-radius:12px;
    cursor:pointer;
    transition:var(--ease);
  }
  .burger:hover{border-color:var(--primary);color:var(--primary);}

  .drawer{
    position:fixed;
    inset:0 0 0 auto;
    width:min(340px,88vw);
    background:#fff;
    box-shadow:-20px 0 40px -20px rgba(16,28,46,.4);
    transform:translateX(102%);
    transition:transform 260ms ease-out;
    z-index:90;
    display:flex;
    flex-direction:column;
    padding:20px;
    overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(16,28,46,.42);
    opacity:0;pointer-events:none;transition:opacity 200ms ease-out;z-index:80;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:14px;}
  .drawer-links a{
    display:flex;align-items:center;
    min-height:48px;padding:0 12px;
    border-radius:10px;color:var(--text-2);font-size:15px;
    transition:var(--ease);
  }
  .drawer-links a:hover,.drawer-links a.active{background:var(--primary-soft);color:var(--primary-deep);}
  .drawer-close{
    width:44px;height:44px;border:1px solid var(--line-strong);background:#fff;border-radius:12px;cursor:pointer;
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    background:
      radial-gradient(900px 420px at 88% -10%, #E7F0FF 0%, rgba(245,248,252,0) 70%),
      linear-gradient(180deg,#FFFFFF 0%, var(--bg) 100%);
    padding:52px 0 44px;
    border-bottom:1px solid var(--line);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:6fr 6fr;
    gap:44px;
    align-items:center;
  }
  .hero h1{
    font-size:40px;
    line-height:1.22;
    font-weight:700;
    letter-spacing:-.01em;
    margin:18px 0 16px;
  }
  .hero h1 em{font-style:normal;color:var(--primary-deep);}
  .hero-sub{font-size:17px;color:var(--text-2);line-height:1.8;max-width:560px;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 30px;}
  .hero-stats{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:12px;
    border-top:1px solid var(--line);
    padding-top:22px;
  }
  .stat b{display:block;font-size:26px;font-weight:700;color:var(--primary-deep);line-height:1.2;}
  .stat span{font-size:13px;color:var(--text-3);}
  .hero-visual{position:relative;}
  .hero-figure{
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-float);
    background:var(--primary-soft);
  }
  .hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .hero-float{
    position:absolute;
    right:-18px;
    bottom:-18px;
    background:#fff;
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-float);
    padding:16px 18px;
    min-width:190px;
    border:1px solid var(--line);
  }
  .hero-float strong{display:block;font-size:22px;font-weight:700;color:var(--primary-deep);}
  .hero-float span{font-size:13px;color:var(--text-3);}
  .hero-float .bar{
    margin-top:10px;height:6px;border-radius:6px;background:var(--primary-soft);overflow:hidden;
  }
  .hero-float .bar i{display:block;height:100%;width:78%;background:linear-gradient(90deg,var(--primary),var(--support));border-radius:6px;}

  /* ---------- Cards ---------- */
  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    overflow:hidden;
    display:flex;
    flex-direction:column;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(22,87,200,.3);}
  .card-body{padding:18px 20px 22px;}
  .card-body h3{font-size:17px;font-weight:600;line-height:1.5;}
  .card-body p{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.75;}
  .card img.thumb{width:100%;aspect-ratio:16/10;object-fit:cover;}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:600;
    padding:4px 10px;
    border-radius:var(--radius-pill);
    background:var(--primary-soft);
    color:var(--primary-deep);
  }
  .badge-accent{background:var(--accent);color:#fff;}
  .badge-support{background:var(--support-soft);color:#0C7F72;}
  .badge-line{background:#fff;color:var(--text-2);border:1px solid var(--line-strong);}

  .grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
  .card-wide{grid-column:span 2;flex-direction:row;align-items:stretch;}
  .card-wide .thumb{width:46%;aspect-ratio:auto;height:100%;min-height:240px;}
  .card-wide .card-body{width:54%;padding:26px 26px 26px 24px;display:flex;flex-direction:column;justify-content:center;}
  .card-wide .card-body h3{font-size:21px;}
  .card-wide .card-body p{font-size:15px;}
  .card-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;}
  .card-foot{margin-top:14px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary-deep);font-size:14px;font-weight:600;
    min-height:44px;transition:var(--ease);
  }
  .link-more span{transition:transform var(--ease);}
  .link-more:hover{color:var(--primary);}
  .link-more:hover span{transform:translateX(4px);}

  /* ---------- Reviews ---------- */
  .carousel-wrap{position:relative;}
  .carousel{
    display:flex;
    gap:20px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    padding:6px 4px 18px;
    scrollbar-width:none;
  }
  .carousel::-webkit-scrollbar{display:none;}
  .review-card{
    scroll-snap-align:start;
    flex:0 0 320px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px;
    transition:border-color var(--ease);
  }
  .review-card:hover{border-color:rgba(22,87,200,.3);}
  .review-top{display:flex;align-items:center;gap:12px;}
  .avatar{
    width:40px;height:40px;flex:0 0 40px;border-radius:50%;
    background:var(--primary-soft);color:var(--primary-deep);
    display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  }
  .review-top b{display:block;font-size:14px;font-weight:600;}
  .review-top span{font-size:12px;color:var(--text-3);}
  .stars{color:var(--accent);font-size:14px;letter-spacing:2px;margin:12px 0 8px;}
  .review-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
  .carousel-nav{display:flex;gap:10px;}
  .carousel-btn{
    width:44px;height:44px;border-radius:50%;
    border:1px solid var(--line-strong);background:#fff;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    color:var(--primary-deep);transition:var(--ease);
  }
  .carousel-btn:hover{background:var(--primary-soft);border-color:var(--primary);}
  .dots{display:none;justify-content:center;gap:8px;margin-top:6px;}
  .dots i{width:8px;height:8px;border-radius:50%;background:var(--line-strong);transition:var(--ease);cursor:pointer;}
  .dots i.on{background:var(--primary);width:22px;border-radius:6px;}

  /* ---------- Guarantee ---------- */
  .guarantee{
    background:#fff;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .guarantee-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;
    padding:32px 0;
  }
  .g-item{display:flex;align-items:center;gap:14px;}
  .g-icon{
    width:48px;height:48px;flex:0 0 48px;border-radius:14px;
    background:var(--primary-soft);color:var(--primary-deep);
    display:flex;align-items:center;justify-content:center;
  }
  .g-item b{display:block;font-size:14px;font-weight:600;}
  .g-item span{font-size:12px;color:var(--text-3);}

  /* ---------- CTA band ---------- */
  .cta-band{
    background:linear-gradient(120deg,var(--primary) 0%, var(--primary-deep) 100%);
    border-radius:20px;
    padding:34px 32px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
    color:#fff;
    box-shadow:0 24px 48px -28px rgba(15,63,151,.75);
  }
  .cta-band h2{font-size:24px;font-weight:700;line-height:1.4;}
  .cta-band p{font-size:14px;color:rgba(255,255,255,.82);margin-top:8px;max-width:620px;}

  /* ---------- CMS list ---------- */
  .cms-feature{
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:var(--ease);
  }
  .cms-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(22,87,200,.3);}
  .cms-feature img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;}
  .cms-feature .cms-feature-body{padding:26px 28px;display:flex;flex-direction:column;justify-content:center;}
  .cms-feature h3{font-size:22px;font-weight:700;line-height:1.45;margin:12px 0 10px;}
  .cms-feature p{font-size:15px;color:var(--text-2);line-height:1.8;}
  .cms-rows{display:grid;gap:12px;margin-top:18px;}
  .cms-row{
    display:grid;
    grid-template-columns:120px minmax(0,1fr);
    gap:16px;
    align-items:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    padding:12px;
    transition:var(--ease);
  }
  .cms-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:rgba(22,87,200,.3);}
  .cms-row img{width:120px;height:80px;object-fit:cover;border-radius:10px;}
  .cms-row h3{font-size:15px;font-weight:600;line-height:1.5;}
  .cms-row p{font-size:13px;color:var(--text-2);margin-top:6px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .cms-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);flex-wrap:wrap;}
  .empty-state{
    border:1px dashed var(--line-strong);
    background:#fff;
    border-radius:var(--radius-card);
    padding:44px 24px;
    text-align:center;
    color:var(--text-2);
  }
  .empty-state svg{margin:0 auto 14px;color:var(--primary);opacity:.7;}
  .empty-state p{font-size:15px;margin-bottom:16px;}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:760px;margin:0 auto;display:grid;gap:12px;}
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    overflow:hidden;
    transition:var(--ease);
  }
  .faq-item[open]{border-color:rgba(22,87,200,.35);box-shadow:var(--shadow-card);}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:56px;
    padding:14px 20px;
    font-size:16px;
    font-weight:600;
    position:relative;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";
    position:absolute;left:0;top:12px;bottom:12px;width:3px;
    background:var(--primary);
    border-radius:0 3px 3px 0;
    opacity:0;transition:var(--ease);
  }
  .faq-item[open] summary::before{opacity:1;}
  .faq-item summary:hover{color:var(--primary-deep);}
  .faq-arrow{transition:transform var(--ease);color:var(--text-3);flex:0 0 auto;}
  .faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--primary);}
  .faq-answer{padding:0 20px 20px;font-size:15px;color:var(--text-2);line-height:1.75;}

  /* ---------- Footer ---------- */
  .site-footer{
    background:#fff;
    border-top:1px solid var(--line);
    margin-top:20px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.1fr;
    gap:32px;
    padding:48px 0 32px;
  }
  .footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;}
  .footer-col p{font-size:13px;color:var(--text-2);line-height:1.85;}
  .footer-col ul{display:grid;gap:8px;}
  .footer-col ul a{
    font-size:14px;color:var(--text-2);transition:var(--ease);
    display:inline-flex;align-items:center;min-height:32px;
  }
  .footer-col ul a:hover{color:var(--primary);}
  .footer-contact li{font-size:14px;color:var(--text-2);display:flex;gap:8px;align-items:flex-start;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-bottom{
    border-top:1px solid var(--line);
    padding:18px 0 26px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--text-3);
  }
  .footer-bottom a{color:var(--text-3);}
  .footer-bottom a:hover{color:var(--primary);}

  .fade-up{opacity:0;transform:translateY(12px);}
  .fade-up.in{opacity:1;transform:none;transition:opacity 420ms ease-out, transform 420ms ease-out;}

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
    .fade-up{opacity:1;transform:none;}
  }

  @media (max-width:1023px){
    .nav,.header-actions .btn-ghost{display:none;}
    .burger{display:inline-flex;}
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero h1{font-size:32px;}
    .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
    .card-wide{grid-column:span 2;flex-direction:row;}
    .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
    .section{padding:52px 0;}
    .dots{display:flex;}
    .carousel-nav{display:none;}
  }

  @media (max-width:767px){
    .topbar{display:none;}
    .header-inner{min-height:64px;}
    .logo-text b{font-size:17px;}
    .hero{padding:36px 0 32px;}
    .hero h1{font-size:28px;}
    .hero-sub{font-size:15px;}
    .hero-float{position:static;margin-top:16px;right:auto;bottom:auto;}
    .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;}
    .stat b{font-size:20px;}
    .section-head h2{font-size:22px;}
    .grid-cards{grid-template-columns:1fr;}
    .card-wide{grid-column:span 1;flex-direction:column;}
    .card-wide .thumb{width:100%;aspect-ratio:16/10;min-height:0;height:auto;}
    .card-wide .card-body{width:100%;padding:20px;}
    .cms-feature{grid-template-columns:1fr;}
    .cms-row{grid-template-columns:96px minmax(0,1fr);gap:12px;}
    .cms-row img{width:96px;height:68px;}
    .review-card{flex:0 0 84%;}
    .cta-band{padding:26px 20px;}
    .cta-band h2{font-size:20px;}
    .footer-grid{grid-template-columns:1fr;gap:24px;padding:36px 0 24px;}
    .section{padding:44px 0;}
  }

  @media (max-width:520px){
    .hero h1{font-size:25px;}
    .hero-cta .btn{width:100%;}
    .guarantee-grid{grid-template-columns:1fr 1fr;gap:14px;padding:24px 0;}
    .g-item{flex-direction:column;align-items:flex-start;gap:10px;}
  }

/* roulang page: article */
:root{
  --primary:#1657C8;
  --primary-deep:#0F3F97;
  --primary-soft:#EAF1FE;
  --support:#12A594;
  --support-soft:#E4F6F3;
  --accent:#F97316;
  --accent-deep:#EA6A0A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --t1:#101C2E;
  --t2:#55637A;
  --t3:#8A97AB;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --sh-card:0 1px 2px rgba(16,28,46,.04), 0 8px 24px -12px rgba(22,87,200,.18);
  --sh-card-hover:0 2px 6px rgba(16,28,46,.06), 0 18px 36px -16px rgba(22,87,200,.30);
  --section:clamp(56px,6vw,80px);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.site-body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
.site-body img{max-width:100%;display:block;border-style:none}
.site-body a{color:inherit;text-decoration:none}
.site-body button{font-family:inherit}
.site-body .container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:16px;
  padding-right:16px;
}
@media (min-width:768px){ .site-body .container{padding-left:24px;padding-right:24px} }
@media (min-width:1024px){ .site-body .container{padding-left:32px;padding-right:32px} }

/* ---------- 顶部提示条 ---------- */
.topbar{background:var(--primary-soft);border-bottom:1px solid #DCE7FA;font-size:13px;color:var(--t2)}
.site-body .topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:16px}
.topbar strong{color:var(--primary);font-weight:600}
.topbar a{color:var(--primary);font-weight:600}
.topbar a:hover{text-decoration:underline;text-underline-offset:3px}
@media (max-width:767px){ .topbar{display:none} }

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
}
.site-body .site-header .container{
  display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:74px;
}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#fff;display:grid;place-items:center;
  box-shadow:0 8px 18px -10px rgba(22,87,200,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:19px;font-weight:700;color:var(--primary-deep);letter-spacing:-.01em}
.logo-text span{font-size:12px;color:var(--t3);letter-spacing:.14em;margin-top:2px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 12px;font-size:15px;color:var(--t2);border-radius:10px;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease-out;
}
.nav a:hover{color:var(--primary);background:var(--primary-soft)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.active{color:var(--primary);font-weight:600}
.nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--t1);place-items:center;cursor:pointer;transition:all .2s ease-out;
}
.burger:hover{border-color:var(--primary);color:var(--primary)}
@media (max-width:1023px){
  .nav{display:none}
  .header-actions .btn-ghost{display:none}
  .burger{display:grid}
}
@media (max-width:519px){
  .header-actions .btn-primary{display:none}
  .logo-text b{font-size:17px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,transform .12s ease-out;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 14px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px -12px rgba(22,87,200,.95)}
.btn-primary:hover{background:var(--primary-deep);box-shadow:0 12px 24px -12px rgba(15,63,151,.95)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px -12px rgba(249,115,22,.95)}
.btn-accent:hover{background:var(--accent-deep)}
.btn-ghost{background:transparent;color:var(--t2)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.link-more svg{transition:transform .2s ease-out}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- 抽屉菜单 ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:rgba(16,28,46,.42);opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(330px,88vw);background:#fff;
  padding:20px 18px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease-out;box-shadow:-20px 0 40px -30px rgba(16,28,46,.6);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:10px}
.drawer-head b{font-size:16px;color:var(--primary-deep)}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--t2);display:grid;place-items:center;cursor:pointer}
.drawer-close:hover{color:var(--primary);border-color:var(--primary)}
.drawer-panel .drawer-cta{width:100%;margin-bottom:8px}
.drawer-panel a:not(.btn){
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--t2);border-bottom:1px solid #F1F5FB;
}
.drawer-panel a:not(.btn):hover{background:var(--primary-soft);color:var(--primary)}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--t3);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#C4CFDE}
.crumb .now{color:var(--t2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-hero{padding:18px 0 0}
.article-hero h1{
  font-size:clamp(28px,4vw,40px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  color:var(--t1);margin:14px 0 16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--t3)}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
}
.tag-support{background:var(--support-soft);color:#0E8377}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9D4E4}
.article-divider{height:1px;background:var(--line);margin:26px 0 0}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:36px;padding:36px 0 0}
@media (min-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
}
.article-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px 34px;box-shadow:var(--sh-card);
}
@media (min-width:768px){ .article-main{padding:36px 40px 44px} }

/* ---------- 正文排版 ---------- */
.article-body{font-size:16.5px;line-height:1.9;color:#1B2740;max-width:760px}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:clamp(20px,2.4vw,25px);font-weight:700;color:var(--t1);line-height:1.5;
  margin:2em 0 .8em;
}
.article-body h3{font-size:19px;font-weight:600;color:var(--t1);margin:1.6em 0 .6em;line-height:1.6}
.article-body h4{font-size:17px;font-weight:600;color:var(--t1);margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body strong{color:var(--t1);font-weight:600}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-deep)}
.article-body blockquote{
  margin:1.6em 0;padding:14px 20px;border-left:3px solid var(--primary);
  background:var(--primary-soft);border-radius:0 12px 12px 0;color:var(--t2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em auto;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:8px}
.article-body table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#F4F8FE;color:var(--t1);font-weight:600}
.article-body pre{
  background:#F2F6FC;border:1px solid var(--line);border-radius:12px;padding:16px;
  overflow-x:auto;font-size:14px;line-height:1.75;margin:1.6em 0;color:#1B2740;
}
.article-body code{background:#F2F6FC;border-radius:6px;padding:2px 6px;font-size:14px}
.article-body pre code{background:none;padding:0}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed #C8D6EA;background:#F7FAFF;border-radius:14px;
  padding:44px 24px;text-align:center;color:var(--t2);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--primary-soft);color:var(--primary);
  display:grid;place-items:center;margin:0 auto 14px;
}
.empty-state p{margin:0 0 6px;font-size:17px;font-weight:600;color:var(--t1)}
.empty-state span{display:block;font-size:14px;color:var(--t3);margin-bottom:18px}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-card);
}
.side-card h3{font-size:16px;font-weight:700;margin:0 0 14px;color:var(--t1);display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--primary)}
.hot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.hot-list li a{display:flex;gap:10px;align-items:flex-start;padding:10px 8px;border-radius:10px;transition:background-color .2s ease-out}
.hot-list li a:hover{background:var(--primary-soft)}
.hot-list .num{
  flex:none;width:20px;height:20px;border-radius:6px;background:#F1F5FB;color:var(--t3);
  font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.hot-list li:nth-child(-n+3) .num{background:var(--primary);color:#fff}
.hot-list .txt{font-size:14px;line-height:1.6;color:var(--t2)}
.hot-list li a:hover .txt{color:var(--primary)}
.side-cta{
  background:linear-gradient(150deg,#1657C8,#0F3F97);color:#fff;border-radius:var(--r-card);
  padding:22px;box-shadow:0 18px 36px -22px rgba(15,63,151,.95);
}
.side-cta h3{font-size:17px;font-weight:700;margin:0 0 8px;color:#fff}
.side-cta h3::before{display:none}
.side-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.82);margin:0 0 16px}
.side-cta .btn{width:100%}

/* ---------- 区块通用 ---------- */
.section{padding-top:var(--section)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.8vw,28px);font-weight:700;margin:0;color:var(--t1);letter-spacing:-.01em}
.section-head .sub{display:block;font-size:14px;color:var(--t3);margin-top:8px;font-weight:400}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){ .card-grid{grid-template-columns:repeat(2,1fr);gap:22px} }
@media (min-width:1024px){ .card-grid{grid-template-columns:repeat(3,1fr);gap:24px} }
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(22,87,200,.3)}
.card-thumb{aspect-ratio:16/10;background:var(--primary-soft);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;margin:0;color:var(--t1)}
.card-body p{font-size:14px;line-height:1.7;color:var(--t2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t3)}

/* ---------- 相关推荐 ---------- */
.related-wrap{margin-top:44px}

/* ---------- CTA 色带 ---------- */
.cta-band{
  margin-top:var(--section);
  background:linear-gradient(120deg,#1657C8,#0F3F97);
  border-radius:20px;padding:34px 26px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:0 24px 50px -30px rgba(15,63,151,.95);
}
.cta-band h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;margin:0 0 8px;color:#fff}
.cta-band p{margin:0;font-size:14.5px;color:rgba(255,255,255,.84);max-width:56ch}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-outline{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.22)}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:var(--section);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--t2);margin:0;max-width:42ch}
.footer-col h4{font-size:15px;font-weight:700;color:var(--t1);margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--t2);transition:color .2s ease-out}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--t2);line-height:1.7}
.footer-contact li span:first-child{color:var(--primary);font-weight:700}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:var(--t3);
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --primary:#1657C8;
  --primary-deep:#0F3F97;
  --support:#12A594;
  --accent:#F97316;
  --accent-deep:#EA6A0A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --primary-soft:#EAF1FE;
  --text:#101C2E;
  --text-2:#55637A;
  --text-3:#8A97AB;
  --warn:#F59E0B;
  --danger:#E5484D;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 1px 2px rgba(16,28,46,.04), 0 8px 24px -12px rgba(22,87,200,.18);
  --shadow-hover:0 2px 4px rgba(16,28,46,.06), 0 16px 34px -14px rgba(22,87,200,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
summary{cursor:pointer;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:16px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(22,87,200,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.16;}
.logo-text b{font-size:16px;font-weight:700;color:var(--primary-deep);letter-spacing:-.01em;}
.logo-text span{font-size:10.5px;color:var(--text-3);letter-spacing:.18em;}
@media (min-width:640px){.logo-text b{font-size:18px;}}

.nav{display:none;align-items:center;gap:2px;margin-left:6px;}
.nav a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:14.5px;color:var(--text-2);border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transition:transform .22s ease;
}
.nav a:hover{color:var(--primary-deep);background:var(--primary-soft);}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1);}
.nav a.active{color:var(--primary-deep);font-weight:600;}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.header-actions .btn-ghost{display:none;}
.header-actions .btn-primary{display:none;}
@media (min-width:640px){.header-actions .btn-primary{display:inline-flex;}}
@media (min-width:900px){.header-actions .btn-ghost{display:inline-flex;}}
@media (min-width:1024px){
  .nav{display:flex;}
  .burger{display:none;}
}
.burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.burger:hover{color:var(--primary-deep);border-color:rgba(22,87,200,.3);background:var(--primary-soft);}

.overlay{
  position:fixed;top:72px;left:0;right:0;bottom:0;z-index:55;
  background:rgba(16,28,46,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.overlay.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:72px;right:0;bottom:0;z-index:60;
  width:min(320px,86vw);background:#fff;border-left:1px solid var(--line);
  padding:20px;overflow-y:auto;
  box-shadow:-18px 0 44px -26px rgba(16,28,46,.4);
  transform:translateX(100%);transition:transform .28s ease;
}
.drawer.open{transform:translateX(0);}
.drawer .btn{width:100%;margin-bottom:16px;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:12px;
  font-size:15px;color:var(--text-2);transition:background .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:var(--primary-soft);color:var(--primary-deep);}
.drawer-nav a.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:600;}
@media (min-width:1024px){.drawer,.overlay{display:none;}}

/* ---------- Buttons ---------- */
.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;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .12s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -12px rgba(22,87,200,.85);}
.btn-primary:hover{background:var(--primary-deep);box-shadow:0 14px 28px -14px rgba(15,63,151,.9);}
.btn-outline{background:#fff;border-color:rgba(22,87,200,.45);color:var(--primary-deep);}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:rgba(22,87,200,.3);}
.btn-convert{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(249,115,22,.85);}
.btn-convert:hover{background:var(--accent-deep);}
.btn-on-dark{background:#fff;color:var(--primary-deep);}
.btn-on-dark:hover{background:var(--primary-soft);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-lg{min-height:52px;padding:0 28px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  min-height:28px;padding:2px 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.6;
}
.badge-primary{background:var(--primary-soft);color:var(--primary-deep);}
.badge-support{background:rgba(18,165,148,.13);color:#0B7A6D;}
.badge-accent{background:var(--accent);color:#fff;}
.badge-muted{background:#EFF3F9;color:var(--text-2);}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,#EAF1FE 0%,rgba(245,248,252,0) 92%);
  padding:32px 0 0;
}
@media (min-width:1024px){.hero{padding:48px 0 0;}}
.hero-grid{display:grid;gap:24px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,5fr) minmax(0,4fr) minmax(0,3fr);gap:26px;align-items:start;}
}
.hero-figure{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  background:var(--primary-soft);box-shadow:var(--shadow-card);border:1px solid var(--line);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:rgba(255,255,255,.94);border-radius:12px;padding:10px 14px;
  font-size:13px;color:var(--text-2);box-shadow:0 10px 24px -16px rgba(16,28,46,.5);
}
.hero-copy{display:flex;flex-direction:column;gap:14px;}
.hero-copy h1{font-size:28px;font-weight:700;color:var(--text);}
@media (min-width:1024px){.hero-copy h1{font-size:40px;}}
.hero-copy h1 .h1-sub{
  display:block;margin-top:8px;font-size:.6em;font-weight:600;
  color:var(--primary-deep);letter-spacing:.01em;
}
.hero-copy .lead{font-size:15px;color:var(--text-2);line-height:1.8;}
@media (min-width:1024px){.hero-copy .lead{font-size:16px;}}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:2px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:22px;margin-top:6px;padding-top:16px;border-top:1px dashed var(--line);}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats b{font-size:22px;font-weight:700;color:var(--primary-deep);line-height:1.2;}
.hero-stats span{font-size:13px;color:var(--text-3);}

.spec-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.spec-card h2{font-size:16px;font-weight:700;margin-bottom:6px;}
.spec-card .spec-tip{font-size:13px;color:var(--text-3);margin-bottom:12px;}
.spec-list li{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.spec-list li:last-child{border-bottom:0;padding-bottom:0;}
.spec-list .k{color:var(--text-3);flex-shrink:0;}
.spec-list .v{color:var(--text);font-weight:600;text-align:right;}

.point-row{display:grid;gap:16px;margin-top:26px;}
@media (min-width:768px){.point-row{grid-template-columns:repeat(3,1fr);}}
.point{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.point:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(22,87,200,.3);}
.point .p-ico{
  width:38px;height:38px;flex-shrink:0;border-radius:11px;
  background:var(--primary-soft);color:var(--primary-deep);
  display:inline-flex;align-items:center;justify-content:center;
}
.point h3{font-size:15.5px;font-weight:600;margin-bottom:4px;}
.point p{font-size:13.5px;color:var(--text-2);line-height:1.7;}

/* ---------- Sections ---------- */
.section{padding:56px 0 0;}
@media (min-width:1024px){.section{padding:80px 0 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px;}
.section-head h2{font-size:22px;font-weight:700;}
@media (min-width:1024px){.section-head h2{font-size:28px;}}
.section-head .sub{font-size:14px;color:var(--text-3);margin-top:6px;max-width:640px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--primary-deep);min-height:44px;
  transition:color .2s ease,gap .2s ease;
}
.text-link:hover{color:var(--primary);gap:10px;}

/* ---------- Cards grid ---------- */
.card-grid{display:grid;gap:20px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(22,87,200,.3);}
.card-media{position:relative;background:var(--primary-soft);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card-tag{position:absolute;left:12px;top:12px;}
.card-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.75;}
.card-foot{margin-top:auto;padding-top:10px;}
.card-foot .text-link{font-size:13.5px;}

/* ---------- Steps ---------- */
.steps{display:grid;gap:18px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(22,87,200,.3);}
.step .num{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary-deep);font-weight:700;font-size:15px;margin-bottom:12px;
}
.step h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.step p{font-size:13.5px;color:var(--text-2);line-height:1.75;}
.step::after{
  content:"";position:absolute;right:-9px;top:36px;width:0;height:0;
  border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:7px solid var(--line);
  display:none;
}
@media (min-width:1024px){.step:not(:last-child)::after{display:block;}}

/* ---------- Split block ---------- */
.split{display:grid;gap:24px;align-items:center;}
@media (min-width:1024px){.split{grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:40px;}}
.split-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--primary-soft);}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;margin-bottom:12px;box-shadow:0 1px 2px rgba(16,28,46,.03);
  transition:border-color .2s ease,transform .2s ease;
}
.check-list li:hover{border-color:rgba(22,87,200,.3);transform:translateY(-2px);}
.check-list .ck{
  width:24px;height:24px;flex-shrink:0;border-radius:8px;margin-top:2px;
  background:rgba(18,165,148,.14);color:#0B7A6D;
  display:inline-flex;align-items:center;justify-content:center;
}
.check-list h3{font-size:15px;font-weight:600;margin-bottom:2px;}
.check-list p{font-size:13.5px;color:var(--text-2);line-height:1.7;}

/* ---------- Assurance ---------- */
.assure{
  display:grid;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);
}
@media (min-width:640px){.assure{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.assure{grid-template-columns:repeat(4,1fr);gap:20px;}}
.assure-item{display:flex;gap:12px;align-items:center;}
.assure-ico{
  width:42px;height:42px;flex-shrink:0;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-deep);
  display:inline-flex;align-items:center;justify-content:center;
}
.assure-item h3{font-size:14.5px;font-weight:600;margin-bottom:2px;}
.assure-item p{font-size:12.5px;color:var(--text-3);line-height:1.6;}

/* ---------- FAQ ---------- */
.faq{max-width:820px;}
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details:hover{border-color:rgba(22,87,200,.3);}
.faq details[open]{border-color:rgba(22,87,200,.35);box-shadow:var(--shadow-card);border-left:3px solid var(--primary);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:56px;padding:14px 18px;font-size:15.5px;font-weight:600;
  list-style:none;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .chev{flex-shrink:0;color:var(--text-3);transition:transform .25s ease;}
.faq details[open] summary .chev{transform:rotate(180deg);color:var(--primary-deep);}
.faq .answer{padding:0 18px 18px;font-size:15px;color:var(--text-2);line-height:1.75;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-deep) 100%);
  border-radius:20px;padding:28px;color:#fff;
  display:grid;gap:20px;
  box-shadow:0 24px 48px -28px rgba(15,63,151,.75);
}
@media (min-width:768px){
  .cta-band{grid-template-columns:1fr auto;align-items:center;padding:38px 42px;gap:32px;}
}
.cta-band h2{font-size:22px;font-weight:700;margin-bottom:8px;}
@media (min-width:1024px){.cta-band h2{font-size:26px;}}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.86);line-height:1.8;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:72px;background:#fff;border-top:1px solid var(--line);
  padding:56px 0 24px;
}
.footer-grid{display:grid;gap:28px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand .logo-text b{font-size:16px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--text);}
.footer-col p{font-size:13.5px;color:var(--text-2);line-height:1.85;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  display:inline-flex;align-items:center;min-height:32px;
  font-size:14px;color:var(--text-2);transition:color .2s ease;
}
.footer-col ul a:hover{color:var(--primary-deep);}
.footer-contact li{display:flex;gap:8px;font-size:13.5px;color:var(--text-2);margin-bottom:10px;line-height:1.7;}
.footer-contact li span[aria-hidden]{color:var(--support);font-weight:700;}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- Motion ---------- */
.fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .5s ease-out forwards;}
.fade-up.d1{animation-delay:.08s;}
.fade-up.d2{animation-delay:.16s;}
.fade-up.d3{animation-delay:.24s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
    --primary:#1657C8;
    --primary-deep:#0F3F97;
    --support:#12A594;
    --accent:#F97316;
    --accent-deep:#EA6A0A;
    --bg:#F5F8FC;
    --card:#FFFFFF;
    --line:#E3EAF3;
    --primary-soft:#EAF1FE;
    --text:#101C2E;
    --text-2:#55637A;
    --text-3:#8A97AB;
    --radius-card:16px;
    --radius-btn:12px;
    --radius-img:14px;
    --shadow-sm:0 1px 2px rgba(16,28,46,.04);
    --shadow-card:0 1px 2px rgba(16,28,46,.04),0 8px 24px -12px rgba(22,87,200,.18);
    --shadow-hover:0 2px 6px rgba(16,28,46,.06),0 16px 34px -16px rgba(22,87,200,.30);
    --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

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

  .page-body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    font-variant-numeric:tabular-nums;
    overflow-x:hidden;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:16px;
    padding-right:16px;
  }
  @media (min-width:768px){
    .container{padding-left:24px;padding-right:24px;}
  }
  @media (min-width:1024px){
    .container{padding-left:32px;padding-right:32px;}
  }

  .page-body img{display:block;max-width:100%;}
  .page-body a{color:inherit;text-decoration:none;}
  .page-body button{font-family:inherit;}

  /* 顶部细条 */
  .topbar{
    background:var(--primary-soft);
    border-bottom:1px solid rgba(22,87,200,.10);
    font-size:13px;
    color:var(--primary-deep);
    display:none;
  }
  @media (min-width:768px){
    .topbar{display:block;}
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:38px;
  }
  .topbar-text{display:flex;align-items:center;gap:8px;}
  .topbar-dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--support);
    box-shadow:0 0 0 3px rgba(18,165,148,.16);
    display:inline-block;
  }
  .topbar-links{display:flex;align-items:center;gap:18px;}
  .topbar-links a{color:var(--primary);font-weight:500;}
  .topbar-links a:hover{color:var(--primary-deep);text-decoration:underline;text-underline-offset:3px;}

  /* 头部 */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(16,28,46,.03);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    min-height:72px;
  }
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;
    background:var(--primary-soft);
    color:var(--primary);
    display:grid;place-items:center;flex-shrink:0;
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.15;}
  .logo-text b{font-size:18px;font-weight:700;color:var(--primary);letter-spacing:-.01em;}
  .logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em;}

  .nav{display:none;}
  @media (min-width:1024px){
    .nav{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;}
  }
  .nav a{
    position:relative;
    display:flex;align-items:center;
    min-height:44px;
    padding:8px 12px;
    border-radius:10px;
    font-size:14.5px;
    color:var(--text-2);
    white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .nav a::after{
    content:"";
    position:absolute;left:12px;right:12px;bottom:5px;height:2px;
    border-radius:2px;background:var(--primary);
    transform:scaleX(0);transform-origin:center;
    transition:transform .22s ease;
  }
  .nav a:hover{color:var(--primary);background:var(--primary-soft);}
  .nav a:hover::after,.nav a.active::after{transform:scaleX(1);}
  .nav a.active{color:var(--primary);font-weight:600;}
  .nav a:focus-visible,.btn:focus-visible,.faq-q:focus-visible,.drawer-links a:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
  }

  .header-actions{display:flex;align-items:center;gap:10px;}
  .header-actions .btn-ghost{display:none;}
  @media (min-width:1024px){
    .header-actions .btn-ghost{display:inline-flex;}
  }

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;
    padding:10px 18px;
    border-radius:var(--radius-btn);
    font-size:14.5px;font-weight:600;
    border:1px solid transparent;
    cursor:pointer;
    transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .12s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -10px rgba(22,87,200,.55);}
  .btn-primary:hover{background:var(--primary-deep);box-shadow:0 12px 26px -12px rgba(15,63,151,.7);}
  .btn-outline{background:#fff;color:var(--primary);border-color:rgba(22,87,200,.35);}
  .btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);}
  .btn-ghost{background:transparent;color:var(--text-2);}
  .btn-ghost:hover{background:var(--primary-soft);color:var(--primary);}
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(249,115,22,.7);}
  .btn-accent:hover{background:var(--accent-deep);}
  .btn-light{background:#fff;color:var(--primary);}
  .btn-light:hover{background:#EAF1FE;color:var(--primary-deep);}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;}
  .btn-sm{padding:8px 14px;font-size:13.5px;min-height:40px;}
  .btn-lg{padding:13px 24px;font-size:15.5px;min-height:50px;}
  .btn-block{width:100%;}
  .btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}

  .burger{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;
    border-radius:12px;
    border:1px solid var(--line);
    background:#fff;color:var(--text-2);
    cursor:pointer;
  }
  .burger:hover{background:var(--primary-soft);color:var(--primary);border-color:rgba(22,87,200,.3);}
  @media (min-width:1024px){
    .burger{display:none;}
  }

  /* 抽屉 */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(16,28,46,.42);
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    background:#fff;z-index:90;
    transform:translateX(102%);
    transition:transform .28s ease;
    display:flex;flex-direction:column;gap:16px;
    padding:20px 18px 28px;
    overflow-y:auto;
    box-shadow:-12px 0 40px -20px rgba(16,28,46,.45);
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    background:#fff;color:var(--text-2);cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .drawer-close:hover{background:var(--primary-soft);color:var(--primary);}
  .drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:4px;}
  .drawer-links a{
    display:flex;align-items:center;
    min-height:48px;padding:10px 12px;border-radius:12px;
    font-size:15px;color:var(--text-2);
  }
  .drawer-links a:hover{background:var(--primary-soft);color:var(--primary);}
  .drawer-links a.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}

  /* 横幅 */
  .page-banner{
    position:relative;
    overflow:hidden;
    background:var(--primary-deep);
  }
  .banner-bg{
    position:absolute;inset:0;width:100%;height:100%;
    object-fit:cover;
    opacity:.55;
  }
  .banner-overlay{
    position:absolute;inset:0;
    background:rgba(15,63,151,.82);
  }
  .banner-inner{
    position:relative;
    padding-top:44px;
    padding-bottom:44px;
    color:#fff;
  }
  @media (min-width:1024px){
    .banner-inner{padding-top:68px;padding-bottom:68px;}
  }
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:rgba(255,255,255,.78);
    margin-bottom:18px;
  }
  .breadcrumb a{color:rgba(255,255,255,.9);}
  .breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb .sep{opacity:.6;}

  .banner-tag{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(255,255,255,.16);
    border:1px solid rgba(255,255,255,.28);
    font-size:13px;color:#fff;
    margin-bottom:16px;
  }
  .banner-title{
    font-size:28px;line-height:1.28;font-weight:700;
    letter-spacing:-.01em;margin:0 0 12px;color:#fff;
    max-width:820px;
  }
  @media (min-width:768px){
    .banner-title{font-size:34px;}
  }
  @media (min-width:1024px){
    .banner-title{font-size:40px;}
  }
  .banner-sub{
    margin:0 0 26px;
    font-size:15.5px;
    color:rgba(255,255,255,.86);
    max-width:640px;
  }
  @media (min-width:768px){
    .banner-sub{font-size:17px;}
  }
  .banner-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .banner-points{
    display:flex;flex-wrap:wrap;gap:10px 26px;
    margin-top:28px;font-size:13.5px;color:rgba(255,255,255,.82);
  }
  .banner-points span{display:inline-flex;align-items:center;gap:8px;}

  /* 三条功能条 */
  .feature-strip{
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .feature-strip-inner{
    display:grid;gap:18px;
    grid-template-columns:1fr;
    padding-top:28px;padding-bottom:28px;
  }
  @media (min-width:768px){
    .feature-strip-inner{grid-template-columns:repeat(3,1fr);gap:24px;}
  }
  .feature-item{
    display:flex;align-items:flex-start;gap:14px;
    padding:16px;border-radius:var(--radius-card);
    background:var(--bg);
    border:1px solid var(--line);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(22,87,200,.3);}
  .feature-icon{
    width:44px;height:44px;flex-shrink:0;border-radius:12px;
    background:var(--primary-soft);color:var(--primary);
    display:grid;place-items:center;
  }
  .feature-item h3{margin:0 0 4px;font-size:16px;font-weight:600;color:var(--text);}
  .feature-item p{margin:0;font-size:13.5px;line-height:1.65;color:var(--text-2);}

  /* 板块通用 */
  .section{padding-top:56px;padding-bottom:56px;}
  @media (min-width:1024px){
    .section{padding-top:80px;padding-bottom:80px;}
  }
  .section-head{max-width:760px;margin-bottom:28px;}
  @media (min-width:1024px){
    .section-head{margin-bottom:36px;}
  }
  .eyebrow{
    display:inline-block;
    font-size:12.5px;font-weight:600;letter-spacing:.04em;
    color:var(--primary);
    background:var(--primary-soft);
    padding:5px 12px;border-radius:999px;
    margin-bottom:12px;
  }
  .section-title{
    font-size:22px;font-weight:700;line-height:1.35;
    letter-spacing:-.01em;margin:0 0 10px;color:var(--text);
  }
  @media (min-width:1024px){
    .section-title{font-size:28px;}
  }
  .section-desc{margin:0;font-size:15px;color:var(--text-2);max-width:720px;}

  /* 单列长内容 */
  .single-col{
    max-width:880px;
    margin:0 auto;
  }
  .content-block{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    padding:24px;
    margin-bottom:24px;
  }
  @media (min-width:768px){
    .content-block{padding:32px;}
  }
  .content-block h2{
    font-size:20px;font-weight:700;line-height:1.4;
    margin:0 0 12px;color:var(--text);
  }
  @media (min-width:1024px){
    .content-block h2{font-size:24px;}
  }
  .content-block h3{
    font-size:16.5px;font-weight:600;
    margin:22px 0 8px;color:var(--text);
  }
  .content-block p{margin:0 0 14px;font-size:15.5px;line-height:1.9;color:var(--text-2);}
  .content-block p:last-child{margin-bottom:0;}
  .block-index{
    display:inline-flex;align-items:center;justify-content:center;
    width:30px;height:30px;border-radius:10px;
    background:var(--primary-soft);color:var(--primary);
    font-size:14px;font-weight:700;margin-right:10px;
    vertical-align:middle;
  }
  .block-figure{
    margin:20px 0 4px;
    border-radius:var(--radius-img);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--primary-soft);
  }
  .block-figure img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
  }
  .figure-caption{
    font-size:12.5px;color:var(--text-3);
    padding:10px 14px;background:#FAFCFF;border-top:1px solid var(--line);
  }

  .check-list{list-style:none;margin:6px 0 0;padding:0;}
  .check-list li{
    position:relative;
    padding:10px 0 10px 30px;
    font-size:15px;color:var(--text-2);
    border-bottom:1px dashed var(--line);
    line-height:1.75;
  }
  .check-list li:last-child{border-bottom:none;padding-bottom:0;}
  .check-list li::before{
    content:"";
    position:absolute;left:6px;top:18px;
    width:8px;height:8px;border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 0 4px rgba(22,87,200,.12);
  }
  .check-list li b{color:var(--text);font-weight:600;}

  .step-list{list-style:none;margin:8px 0 0;padding:0;counter-reset:step;}
  .step-item{
    position:relative;
    padding:0 0 20px 48px;
    counter-increment:step;
  }
  .step-item::before{
    content:counter(step);
    position:absolute;left:0;top:0;
    width:32px;height:32px;border-radius:50%;
    background:var(--primary);color:#fff;
    display:grid;place-items:center;
    font-size:14px;font-weight:700;
  }
  .step-item:not(:last-child)::after{
    content:"";
    position:absolute;left:15px;top:36px;bottom:6px;
    width:2px;background:var(--line);
  }
  .step-item h4{margin:4px 0 4px;font-size:15.5px;font-weight:600;color:var(--text);}
  .step-item p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

  .info-table{
    margin-top:16px;
    border:1px solid var(--line);
    border-radius:14px;
    overflow:hidden;
  }
  .info-row{
    display:grid;
    grid-template-columns:1fr;
    gap:6px;
    padding:14px 16px;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .info-row:last-child{border-bottom:none;}
  .info-row:nth-child(even){background:#FAFCFF;}
  @media (min-width:768px){
    .info-row{grid-template-columns:220px 1fr;gap:20px;align-items:baseline;}
  }
  .info-row dt,.info-key{
    font-size:14.5px;font-weight:600;color:var(--text);
  }
  .info-row dd,.info-val{
    margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;
  }

  .tip-grid{
    display:grid;gap:20px;grid-template-columns:1fr;
  }
  @media (min-width:768px){
    .tip-grid{grid-template-columns:repeat(3,1fr);}
  }
  .tip-card{
    background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px;
    box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .tip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(22,87,200,.3);}
  .tip-badge{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:12px;
    background:rgba(18,165,148,.12);color:var(--support);
    margin-bottom:14px;
  }
  .tip-card h3{margin:0 0 8px;font-size:16.5px;font-weight:600;color:var(--text);}
  .tip-card p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

  /* 数据速览 */
  .stats-strip{
    background:#fff;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .stats-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:18px;
    padding-top:28px;padding-bottom:28px;
  }
  @media (min-width:768px){
    .stats-grid{grid-template-columns:repeat(4,1fr);gap:24px;}
  }
  .stat-item{
    padding:16px 18px;
    border-radius:14px;
    background:var(--bg);
    border:1px solid var(--line);
  }
  .stat-num{
    font-size:24px;font-weight:700;color:var(--primary);
    line-height:1.2;letter-spacing:-.01em;
  }
  @media (min-width:1024px){
    .stat-num{font-size:28px;}
  }
  .stat-label{
    display:block;margin-top:4px;
    font-size:13.5px;color:var(--text-2);
  }

  /* FAQ */
  .faq{max-width:820px;margin:0 auto;}
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item[open]{
    border-color:rgba(22,87,200,.35);
    box-shadow:var(--shadow-card);
  }
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 18px;
    font-size:15.5px;font-weight:600;color:var(--text);
    cursor:pointer;list-style:none;
    min-height:56px;
  }
  .faq-q::-webkit-details-marker{display:none;}
  .faq-q:hover{color:var(--primary);}
  .faq-icon{
    flex-shrink:0;width:26px;height:26px;border-radius:50%;
    background:var(--primary-soft);color:var(--primary);
    display:grid;place-items:center;
    transition:transform .25s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(180deg);}
  .faq-a{
    padding:0 18px 18px;
    font-size:15px;line-height:1.8;color:var(--text-2);
    border-left:3px solid var(--primary);
    margin-left:18px;
    padding-left:16px;
  }

  /* CTA 色带 */
  .cta-band{
    background:var(--primary);
    border-radius:var(--radius-card);
    padding:28px 24px;
    color:#fff;
    display:flex;flex-direction:column;gap:20px;
    box-shadow:0 20px 44px -24px rgba(15,63,151,.6);
  }
  @media (min-width:768px){
    .cta-band{
      flex-direction:row;align-items:center;justify-content:space-between;
      padding:36px 40px;gap:32px;
    }
  }
  .cta-band h2{margin:0 0 8px;font-size:21px;font-weight:700;color:#fff;line-height:1.35;}
  @media (min-width:1024px){
    .cta-band h2{font-size:26px;}
  }
  .cta-band p{margin:0;font-size:14.5px;color:rgba(255,255,255,.85);max-width:560px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

  /* 页脚 */
  .site-footer{
    background:#fff;
    border-top:1px solid var(--line);
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    padding-top:44px;padding-bottom:32px;
  }
  @media (min-width:640px){
    .footer-grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-top:56px;}
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-col p{margin:0;font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:340px;}
  .footer-col h4{
    font-size:15px;font-weight:600;color:var(--text);
    margin:0 0 14px;
  }
  .footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
  .footer-col ul a{
    font-size:14px;color:var(--text-2);
    display:inline-flex;align-items:center;min-height:32px;
    transition:color .2s ease,transform .2s ease;
  }
  .footer-col ul a:hover{color:var(--primary);transform:translateX(2px);}
  .footer-contact li{
    display:flex;gap:8px;font-size:13.5px;color:var(--text-2);line-height:1.75;
  }
  .footer-contact li span[aria-hidden]{color:var(--primary);}
  .footer-bottom{
    border-top:1px solid var(--line);
    padding-top:18px;padding-bottom:24px;
    display:flex;flex-direction:column;gap:8px;
    font-size:13px;color:var(--text-3);
  }
  @media (min-width:768px){
    .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
  }

  /* 入场动效 */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
  .reveal.is-visible{opacity:1;transform:translateY(0);}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none;}
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  }

/* roulang page: category3 */
:root{
  --primary:#1657C8;
  --primary-deep:#0F3F97;
  --primary-soft:#EAF1FE;
  --support:#12A594;
  --support-soft:#E6F6F3;
  --accent:#F97316;
  --accent-deep:#EA6A0A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#101C2E;
  --text-2:#55637A;
  --text-3:#8A97AB;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 1px 2px rgba(16,28,46,.04), 0 8px 24px -12px rgba(22,87,200,.18);
  --shadow-card-hover:0 2px 6px rgba(16,28,46,.06), 0 18px 34px -14px rgba(22,87,200,.30);
  --shadow-float:0 14px 34px -14px rgba(16,28,46,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* 顶部细条 */
.topbar{background:var(--primary-soft);color:var(--primary-deep);font-size:13px;display:none}
@media (min-width:768px){.topbar{display:block}}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar a{color:var(--primary);font-weight:600}
.topbar a:hover{text-decoration:underline}

/* 头部与导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(16,28,46,.02)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;flex:none}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:19px;font-weight:700;color:var(--primary-deep);letter-spacing:-.01em}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.12em}
.nav{display:none}
@media (min-width:1024px){
  .nav{display:flex;align-items:center;gap:2px;margin-left:auto}
}
.nav a{position:relative;padding:10px 12px;font-size:15px;color:var(--text-2);border-radius:8px;transition:color .2s ease-out,background .2s ease-out}
.nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:center;transition:transform .2s ease-out}
.nav a:hover{color:var(--primary);background:#F7FAFF}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:var(--primary);font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media (min-width:1024px){.header-actions{margin-left:0}}
.header-actions .btn-ghost{display:none}
@media (min-width:768px){.header-actions .btn-ghost{display:inline-flex}}
.burger{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text-2);cursor:pointer;transition:border-color .2s,color .2s}
.burger:hover{border-color:rgba(22,87,200,.4);color:var(--primary)}
@media (min-width:1024px){.burger{display:none}}
.drawer{display:none;border-bottom:1px solid var(--line);background:#fff}
.drawer.open{display:block}
.drawer-inner{padding:16px 0 22px}
.drawer .btn{width:100%;margin-bottom:14px}
.drawer a.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer a.drawer-link:hover{color:var(--primary)}
.drawer a.drawer-link.active{color:var(--primary);font-weight:600}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,transform .12s ease-out}
.btn-sm{min-height:38px;padding:8px 14px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -12px rgba(22,87,200,.75)}
.btn-primary:hover{background:var(--primary-deep);box-shadow:0 14px 26px -12px rgba(15,63,151,.75)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--primary);border-color:rgba(22,87,200,.35)}
.btn-ghost:hover{background:var(--primary-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(249,115,22,.8)}
.btn-accent:hover{background:var(--accent-deep)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-more span{display:inline-block;transition:transform .2s ease-out}
.link-more:hover span{transform:translateX(4px)}

/* 通用板块 */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section-tight{padding:36px 0}
.sec-head{max-width:720px;margin-bottom:28px}
.sec-title{font-size:22px;font-weight:700;letter-spacing:-.01em;line-height:1.35}
@media (min-width:1024px){.sec-title{font-size:28px}}
.sec-sub{margin-top:10px;font-size:15px;color:var(--text-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary-deep);font-size:13px;font-weight:600}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600}
.tag-support{background:var(--support-soft);color:#0C7A6D}
.tag-accent{background:var(--accent);color:#fff}

/* Hero */
.hero{background:linear-gradient(180deg,#EAF1FE 0%,#F5F8FC 100%);border-bottom:1px solid var(--line);padding:44px 0 52px}
@media (min-width:1024px){.hero{padding:64px 0 76px}}
.hero-grid{display:grid;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr 1fr;gap:56px}}
.hero-copy{order:2}
.hero-media{order:1}
@media (min-width:1024px){.hero-copy{order:1}.hero-media{order:2}}
.hero-title{font-size:28px;font-weight:700;line-height:1.28;letter-spacing:-.01em;margin-top:18px;color:var(--text)}
@media (min-width:1024px){.hero-title{font-size:40px}}
.hero-lead{margin-top:14px;font-size:16px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;max-width:520px}
.stat-num{font-size:22px;font-weight:700;color:var(--primary-deep);font-variant-numeric:tabular-nums;line-height:1.2}
@media (min-width:1024px){.stat-num{font-size:26px}}
.stat-label{margin-top:4px;font-size:13px;color:var(--text-3);line-height:1.5}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:0 24px 48px -24px rgba(16,28,46,.35)}
.float-card{position:absolute;right:10px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-float);min-width:190px}
@media (min-width:1024px){.float-card{right:-18px;bottom:-22px}}
.float-card .fc-label{font-size:12px;color:var(--text-3)}
.float-card .fc-value{font-size:16px;font-weight:700;color:var(--primary-deep);margin-top:2px;display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--support);display:inline-block}

/* 保障条 */
.assure{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;display:grid;gap:18px;box-shadow:var(--shadow-card)}
@media (min-width:640px){.assure{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.assure{grid-template-columns:repeat(4,1fr);padding:26px 28px}}
.assure-item{display:flex;gap:12px;align-items:flex-start}
.assure-icon{width:40px;height:40px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;flex:none}
.assure-icon.is-support{background:var(--support-soft);color:#0C7A6D}
.assure-title{font-size:14px;font-weight:600}
.assure-desc{font-size:12px;color:var(--text-3);line-height:1.6;margin-top:2px}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;display:flex;flex-direction:column;height:100%;transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(22,87,200,.3)}
.card-img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--primary-soft)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.45}
.card-text{font-size:14px;color:var(--text-2);line-height:1.7}
.card-foot{margin-top:auto;padding-top:6px}

/* 错位两列 */
.two-col{display:grid;gap:24px}
@media (min-width:768px){.two-col{grid-template-columns:1fr 1fr}}
.col-stack{display:flex;flex-direction:column;gap:24px}
@media (min-width:1024px){.col-stack.offset{margin-top:44px}}

/* 时间轴 */
.timeline{margin-top:8px}
.tl-item{position:relative;padding-left:58px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-num{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary-deep);display:grid;place-items:center;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.tl-title{font-size:17px;font-weight:600;padding-top:6px}
.tl-text{font-size:14px;color:var(--text-2);margin-top:6px;max-width:640px}

/* 三列说明 */
.grid-3{display:grid;gap:22px}
@media (min-width:640px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.info-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(22,87,200,.3)}
.info-icon{width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary-deep);display:grid;place-items:center;margin-bottom:14px}
.info-title{font-size:17px;font-weight:600}
.info-text{margin-top:8px;font-size:14px;color:var(--text-2)}

/* FAQ */
.faq-wrap{max-width:760px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.faq-item:hover{border-color:rgba(22,87,200,.3)}
.faq-item[open]{box-shadow:0 0 0 1px rgba(22,87,200,.25);border-color:rgba(22,87,200,.35)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;line-height:1.5}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item[open] summary{color:var(--primary-deep)}
.faq-icon{flex:none;color:var(--primary);transition:transform .25s ease-out}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-body{padding:0 20px 20px;font-size:15px;color:var(--text-2);line-height:1.75}

/* CTA 色带 */
.cta-band{background:var(--primary);border-radius:22px;padding:32px 24px;color:#fff;display:flex;flex-direction:column;gap:20px;box-shadow:0 24px 48px -26px rgba(22,87,200,.85)}
@media (min-width:768px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px}}
.cta-title{font-size:22px;font-weight:700;line-height:1.35}
@media (min-width:1024px){.cta-title{font-size:26px}}
.cta-text{margin-top:8px;font-size:14px;color:rgba(255,255,255,.86);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}
.cta-band .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.22)}
.cta-band .btn-accent{background:var(--accent);color:#fff}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 24px;margin-top:8px}
.footer-grid{display:grid;gap:30px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-col p{font-size:13px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .2s ease-out}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:8px;font-size:13px;color:var(--text-2);line-height:1.7}
.footer-bottom{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* 动效 */
@media (prefers-reduced-motion:no-preference){
  .fade-up{opacity:0;transform:translateY(12px);animation:fadeUp .55s ease-out forwards}
  .fade-up.d1{animation-delay:.08s}
  .fade-up.d2{animation-delay:.16s}
  @keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category4 */
:root{
  --primary:#1657C8;
  --primary-deep:#0F3F97;
  --primary-soft:#EAF1FE;
  --support:#12A594;
  --support-soft:#E6F6F3;
  --accent:#F97316;
  --accent-deep:#EA6A0A;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#101C2E;
  --text-2:#55637A;
  --text-3:#8A97AB;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 1px 2px rgba(16,28,46,.04), 0 8px 24px -12px rgba(22,87,200,.18);
  --shadow-lift:0 2px 6px rgba(16,28,46,.06), 0 18px 36px -16px rgba(22,87,200,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button,input{font:inherit;color:inherit}
h1{font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.01em}
h2{font-size:22px;line-height:1.4;font-weight:700;letter-spacing:-.01em}
h3{font-size:17px;line-height:1.5;font-weight:600}
@media (min-width:1024px){
  h1{font-size:40px}
  h2{font-size:28px}
  h3{font-size:20px}
}
.container{
  width:100%;
  max-width:1200px !important;
  margin-left:auto;margin-right:auto;
  padding-left:16px;padding-right:16px;
}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--primary);color:rgba(255,255,255,.92);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:38px}
.topbar a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.topbar a:hover{color:#DCE7FB}
@media (max-width:767px){.topbar{display:none}}

/* ---------- 头部 / 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,28,46,.04);
}
.header-inner{display:flex;align-items:center;gap:16px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:18px;font-weight:700;color:var(--primary-deep);letter-spacing:-.01em}
.logo-text span{font-size:12px;color:var(--text-3);letter-spacing:.02em}
.nav{display:flex;align-items:center;gap:20px;margin:0 auto}
.nav a{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:6px 2px;font-size:15px;color:var(--text-2);
  transition:color .2s ease-out;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease-out;
}
.nav a:hover{color:var(--primary-deep)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.active{color:var(--primary-deep);font-weight:600}
.nav a.active::after{transform:scaleX(1)}
.nav a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text);
  cursor:pointer;transition:background .2s ease-out,color .2s ease-out;
}
.burger:hover{background:var(--primary-soft);color:var(--primary)}
.burger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
@media (max-width:1023px){
  .nav{display:none}
  .burger{display:inline-flex}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:520px){
  .header-actions .btn-primary span.btn-text{display:none}
  .header-actions .btn-primary{padding:10px 14px}
}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,28,46,.42);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s;
}
.drawer-mask.show{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;border-left:1px solid var(--line);z-index:70;
  padding:20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  transform:translateX(102%);visibility:hidden;pointer-events:none;
  transition:transform .25s ease-out,visibility .25s;
}
.mobile-drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}
.mobile-drawer .drawer-title{font-size:13px;color:var(--text-3);padding:4px 4px 10px}
.mobile-drawer a{
  display:flex;align-items:center;min-height:46px;padding:0 12px;border-radius:12px;
  font-size:15px;color:var(--text-2);transition:background .2s ease-out,color .2s ease-out;
}
.mobile-drawer a:hover{background:var(--primary-soft);color:var(--primary-deep)}
.mobile-drawer a.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:600}
.mobile-drawer .btn{width:100%;margin-top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,transform .12s ease-out;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);box-shadow:0 12px 24px -14px rgba(15,63,151,.85)}
.btn-ghost{background:#fff;color:var(--primary);border-color:#CFDDF3}
.btn-ghost:hover{background:var(--primary-soft);border-color:#B9CCEE}
.btn-light{background:#fff;color:var(--primary-deep)}
.btn-light:hover{background:#EAF1FE}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);box-shadow:0 12px 24px -14px rgba(234,106,10,.9)}
.btn-sm{min-height:40px;padding:8px 14px;font-size:14px}
.btn-lg{min-height:50px;padding:13px 26px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
  transition:color .2s ease-out,gap .2s ease-out;
}
.link-more:hover{color:var(--primary-deep);gap:10px}
.link-more:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:5px 12px;font-size:13px;font-weight:600;
  background:var(--primary-soft);color:var(--primary-deep);
}
.badge-support{background:var(--support-soft);color:#0B7C71}
.badge-accent{background:#FEF1E6;color:#C2560B}
.pill{display:inline-block;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}
.pill-self{background:var(--support-soft);color:#0B7C71}
.pill-help{background:#FEF1E6;color:#C2560B}

/* ---------- 卡片基础 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(22,87,200,.3)}
.card:focus-within{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 版块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section-tight{padding:36px 0}
.section-head{max-width:760px;margin-bottom:28px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:.04em;margin-bottom:10px;
}
.section-head h2{color:var(--text)}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}

/* ---------- Hero ---------- */
.hero-help{position:relative;overflow:hidden;background:linear-gradient(180deg,#EAF1FE 0%,#F5F8FC 100%)}
.hero-help::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.13;
}
.hero-help-inner{
  position:relative;z-index:1;max-width:860px;margin:0 auto;text-align:center;
  padding:52px 0 56px;
}
@media (min-width:1024px){.hero-help-inner{padding:76px 0 84px}}
.hero-help h1{margin:18px 0 12px;color:var(--text)}
.hero-sub{color:var(--text-2);font-size:16px}
@media (min-width:1024px){.hero-sub{font-size:18px}}
.help-search{
  display:flex;align-items:center;gap:8px;margin:26px auto 0;max-width:620px;
  background:#fff;border:1px solid #D9E2EF;border-radius:14px;
  padding:6px 6px 6px 14px;box-shadow:var(--shadow-card);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.help-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,87,200,.14)}
.help-search .search-icon{color:var(--text-3);flex:none;display:inline-flex}
.help-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-size:15px;padding:12px 4px;color:var(--text);
}
.help-search input::placeholder{color:var(--text-3)}
.quick-tags{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-top:16px}
.quick-tags .qt-label{font-size:13px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;border-radius:999px;padding:5px 12px;
  font-size:13px;background:#fff;border:1px solid var(--line);color:var(--text-2);
  transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out;
}
.tag:hover{border-color:rgba(22,87,200,.4);color:var(--primary-deep);background:var(--primary-soft)}
.hero-stats{
  display:grid;grid-template-columns:1fr;gap:14px;margin-top:32px;
  max-width:640px;margin-left:auto;margin-right:auto;
}
@media (min-width:640px){.hero-stats{grid-template-columns:repeat(3,1fr)}}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 14px;
  box-shadow:var(--shadow-card);text-align:center;
}
.stat b{display:block;font-size:24px;font-weight:700;color:var(--primary-deep);line-height:1.3}
.stat span{display:block;font-size:13px;color:var(--text-2);margin-top:4px}

/* ---------- 场景卡 ---------- */
.scene-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.scene-thumb{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--primary-soft)}
.scene-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{color:var(--text)}
.scene-body p{font-size:14px;color:var(--text-2);line-height:1.7}
.scene-body .scene-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.scene-meta{font-size:13px;color:var(--text-3)}

/* ---------- 对照表 ---------- */
.table-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden}
.table-wrap{overflow:visible}
table.cmp{width:100%;border-collapse:separate;border-spacing:0;font-size:15px}
table.cmp thead th{
  position:sticky;top:76px;z-index:5;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:13px;font-weight:700;text-align:left;
  padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.cmp tbody td{
  padding:16px 18px;border-bottom:1px solid var(--line);
  color:var(--text-2);vertical-align:top;line-height:1.7;
}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr:hover td{background:#F7FAFF}
table.cmp td.cell-strong{color:var(--text);font-weight:600;font-size:15px}
@media (max-width:767px){
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
  table.cmp{min-width:680px}
  table.cmp thead th{position:static}
}
.table-note{margin-top:14px;font-size:13px;color:var(--text-3)}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.flow{grid-template-columns:repeat(3,1fr)}}
.flow-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(22,87,200,.3)}
.flow-num{
  width:36px;height:36px;border-radius:10px;background:var(--primary-soft);color:var(--primary-deep);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:14px;
}
.flow-item h3{margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--text-2);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:14px;box-shadow:var(--shadow-card);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:rgba(22,87,200,.28);box-shadow:var(--shadow-lift)}
.faq-item[open]{border-left-color:var(--primary)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:44px;padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-item summary .chev{flex:none;color:var(--primary);transition:transform .2s ease-out;display:inline-flex}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-answer{padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.75}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary);color:#fff;border-radius:20px;
  padding:30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:0 20px 44px -24px rgba(15,63,151,.75);
}
.cta-band h2{color:#fff;font-size:22px}
@media (min-width:1024px){.cta-band{padding:44px 48px}.cta-band h2{font-size:28px}}
.cta-band p{color:rgba(255,255,255,.86);margin-top:10px;font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px;font-size:14px;color:rgba(255,255,255,.9)}
.cta-points li{display:flex;align-items:center;gap:8px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 24px;margin-top:8px}
.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-col h4{font-size:14px;font-weight:700;color:var(--text);margin:0 0 14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease-out}
.footer-col a:hover{color:var(--primary)}
.footer-col a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--text-2);line-height:1.7}
.footer-contact li span:first-child{color:var(--primary);flex:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;
  border-top:1px solid var(--line);margin-top:36px;padding-top:20px;
  font-size:13px;color:var(--text-3);
}

/* ---------- 动效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.fade-up{animation:fadeUp .5s ease-out both}
.fade-up-2{animation:fadeUp .5s ease-out .1s both}
.fade-up-3{animation:fadeUp .5s ease-out .2s both}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}