/* roulang page: index */
:root{
    --brand:#1F5AD9;
    --brand-dark:#1748B0;
    --accent:#FF6B35;
    --accent-dark:#E85A26;
    --teal:#12A594;
    --bg-page:#F5F7FB;
    --bg-card:#FFFFFF;
    --bg-soft:#EEF3FF;
    --ink:#0E1726;
    --ink-2:#46536B;
    --ink-3:#8A97AD;
    --line:#E5E9F2;
    --r-sm:6px;
    --r-md:12px;
    --r-lg:16px;
    --r-xl:24px;
    --sh-1:0 2px 8px rgba(14,23,38,.06), 0 12px 32px -14px rgba(14,23,38,.12);
    --sh-2:0 6px 14px rgba(14,23,38,.08), 0 20px 40px -16px rgba(14,23,38,.18);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-page);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  img{max-width:100%;display:block;}
  a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
  a:hover{color:var(--brand-dark);}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
  a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,.faq-toggle:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
    border-radius:6px;
  }
  .num{font-variant-numeric:tabular-nums;}

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

  /* 顶部导航 */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 3px rgba(14,23,38,.04);
  }
  .nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
  .brand:hover{color:var(--ink);}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;
    background:linear-gradient(140deg,var(--brand) 0%,#3E7BEA 100%);
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;
    box-shadow:0 6px 14px -6px rgba(31,90,217,.65);
  }
  .brand-text{font-size:18px;font-weight:700;letter-spacing:-.3px;white-space:nowrap;}
  .nav-links{display:none;}
  @media (min-width:1024px){
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
  }
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    padding:8px 12px;font-size:16px;color:var(--ink-2);border-radius:8px;
    transition:color .18s ease,background-color .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
    transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--brand);background:#F7FAFF;}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--brand);font-weight:600;}
  .nav-link.active::after{transform:scaleX(1);}
  .nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .search-wrap{display:none;}
  @media (min-width:1024px){.search-wrap{display:block;position:relative;}}
  .search-input{
    width:220px;height:42px;border-radius:999px;border:1px solid var(--line);
    background:#F7F9FC;padding:0 40px 0 16px;font-size:14px;outline:none;
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .search-input::placeholder{color:var(--ink-3);}
  .search-input:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,90,217,.12);}
  .search-icon{
    position:absolute;right:15px;top:50%;transform:translateY(-50%);
    color:var(--ink-3);font-size:14px;pointer-events:none;
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 24px;border-radius:var(--r-md);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn:active{transform:translateY(0);}
  .btn-lg{height:48px;padding:0 28px;font-size:16px;}
  .btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px -10px rgba(255,107,53,.9);}
  .btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
  .btn-primary:active{background:#D8501F;}
  .btn-outline{background:#fff;color:var(--brand);border:1px solid var(--line);}
  .btn-outline:hover{border-color:var(--brand);background:#F7FAFF;color:var(--brand-dark);transform:translateY(-1px);}
  .btn-soft{background:var(--bg-soft);color:var(--brand);}
  .btn-soft:hover{background:#DFE9FF;color:var(--brand-dark);transform:translateY(-1px);}
  .btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
  .btn-text:hover{gap:10px;color:var(--brand-dark);}
  .btn-pill{border-radius:999px;height:40px;padding:0 20px;font-size:15px;}
  .nav-burger{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
    color:var(--ink-2);background:#fff;
  }
  .nav-burger:hover{border-color:var(--brand);color:var(--brand);}
  @media (min-width:1024px){.nav-burger{display:none;}}
  .drawer{
    display:none;border-top:1px solid var(--line);background:#fff;
  }
  .drawer.open{display:block;}
  @media (min-width:1024px){.drawer.open{display:none;}}
  .drawer a.drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    height:44px;padding:0 4px;color:var(--ink-2);font-size:16px;border-bottom:1px solid #F1F4FA;
  }
  .drawer a.drawer-link:hover{color:var(--brand);}
  .drawer a.drawer-link.active{color:var(--brand);font-weight:600;}

  /* 首屏 */
  .hero{background:var(--bg-soft);position:relative;overflow:hidden;}
  .hero::after{
    content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;
    background:radial-gradient(circle,rgba(31,90,217,.14),transparent 68%);pointer-events:none;
  }
  .hero-grid{display:grid;grid-template-columns:1fr;gap:40px;padding:56px 0 64px;position:relative;z-index:1;}
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:7fr 5fr;align-items:center;padding:72px 0 80px;min-height:520px;}
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid #D9E4FB;color:var(--brand);
    border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;
  }
  .hero h1{
    font-size:30px;line-height:1.22;letter-spacing:-.4px;font-weight:700;
    margin-top:20px;color:var(--ink);
  }
  @media (min-width:1024px){.hero h1{font-size:46px;}}
  .hero-sub{margin-top:18px;color:var(--ink-2);font-size:17px;line-height:1.8;max-width:38em;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;}
  .hero-point{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
  .hero-point i{color:var(--teal);font-size:15px;}
  .hero-visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-1);}
  .hero-visual img{width:100%;height:260px;object-fit:cover;}
  @media (min-width:768px){.hero-visual img{height:340px;}}
  @media (min-width:1024px){.hero-visual img{height:400px;}}
  .hero-visual::before{
    content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(180deg,rgba(255,255,255,.34) 0%,rgba(255,255,255,0) 55%,rgba(14,23,38,.32) 100%);
  }
  .float-card{
    position:absolute;z-index:2;background:#fff;border-radius:14px;
    padding:14px 16px;box-shadow:var(--sh-1);min-width:140px;
  }
  .float-card .fc-num{font-size:22px;font-weight:700;color:var(--brand);line-height:1.3;}
  .float-card .fc-label{font-size:13px;color:var(--ink-3);}
  .fc-a{left:18px;bottom:18px;}
  .fc-b{right:18px;top:18px;}

  /* 信任条 */
  .trust{background:#F0F3F9;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .trust-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;padding:20px 0;}
  @media (min-width:768px){.trust-grid{grid-template-columns:repeat(4,1fr);gap:28px;padding:18px 0;min-height:72px;align-items:center;}}
  .trust-num{font-size:24px;font-weight:700;color:var(--brand);line-height:1.2;}
  .trust-num.teal{color:var(--teal);}
  .trust-label{font-size:13px;color:var(--ink-3);margin-top:2px;}

  /* 区块通用 */
  .section{padding:64px 0;}
  @media (min-width:1024px){.section{padding:96px 0;}}
  .section-alt{background:#fff;}
  .sec-head{max-width:720px;}
  .sec-title{font-size:26px;font-weight:700;letter-spacing:-.3px;line-height:1.3;position:relative;padding-left:16px;}
  .sec-title::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);
  }
  @media (min-width:1024px){.sec-title{font-size:32px;}}
  .sec-desc{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;max-width:38em;}
  .sec-desc.flush{padding-left:16px;}

  /* 三步上手 */
  .steps{display:grid;grid-template-columns:1fr;gap:0;margin-top:44px;position:relative;}
  @media (min-width:1024px){
    .steps{grid-template-columns:repeat(3,1fr);gap:24px;}
  }
  .step{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:28px 24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
  }
  .step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .step + .step{margin-top:20px;}
  @media (min-width:1024px){.step + .step{margin-top:0;}}
  @media (max-width:1023px){
    .steps{padding-left:26px;}
    .steps::before{
      content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;
      background:linear-gradient(180deg,rgba(255,107,53,.5),rgba(31,90,217,.32));
    }
    .step::before{
      content:"";position:absolute;left:-17px;top:46px;width:12px;height:12px;border-radius:50%;
      background:#fff;border:2px solid var(--accent);
    }
  }
  .step-num{
    width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    background:#FFF1EA;border:1px solid rgba(255,107,53,.35);
    color:var(--accent-dark);font-weight:700;font-size:15px;letter-spacing:.5px;
  }
  .step h3{margin-top:18px;font-size:19px;font-weight:600;color:var(--ink);}
  .step p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.8;}

  /* 案例证明 */
  .case-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:44px;}
  @media (min-width:1024px){.case-grid{grid-template-columns:8fr 4fr;}}
  .case-main{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
    box-shadow:var(--sh-1);display:grid;grid-template-columns:1fr;transition:transform .2s ease,box-shadow .2s ease;
  }
  @media (min-width:768px){.case-main{grid-template-columns:1fr 1fr;}}
  .case-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .case-main img{width:100%;height:100%;min-height:220px;object-fit:cover;background:var(--bg-soft);}
  .case-main-body{padding:28px 26px;display:flex;flex-direction:column;gap:14px;}
  .case-side{display:grid;grid-template-columns:1fr;gap:24px;}
  .case-mini{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
    box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;gap:12px;
  }
  .case-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .case-mini h3{font-size:18px;font-weight:600;}
  .case-mini p{font-size:14px;color:var(--ink-2);line-height:1.8;}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);
    background:var(--bg-soft);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.2px;
  }
  .badge-accent{background:#FFF1EA;color:#C2431A;}
  .case-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
  .case-stats .cs-num{font-size:24px;font-weight:700;color:var(--teal);line-height:1.2;}
  .case-stats .cs-label{font-size:13px;color:var(--ink-3);}
  .data-band{
    margin-top:32px;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .data-band-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding:28px 0;}
  @media (min-width:768px){.data-band-grid{grid-template-columns:repeat(4,1fr);}}
  .data-band .db-num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.5px;}
  .data-band .db-label{font-size:13px;color:var(--ink-3);margin-top:6px;}

  /* 资讯列表 */
  .list-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;}
  .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .chip{
    display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14px;
    transition:all .18s ease;
  }
  .chip:hover{border-color:var(--brand);color:var(--brand);}
  .chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
  .post-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:28px;}
  @media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
  .post-card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
    transition:transform .22s ease,box-shadow .22s ease;
  }
  .post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
  .post-thumb{position:relative;background:var(--bg-soft);aspect-ratio:16/9;overflow:hidden;}
  .post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .post-card:hover .post-thumb img{transform:scale(1.03);}
  .post-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .post-title{
    font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card:hover .post-title{color:var(--brand);}
  .post-excerpt{
    font-size:14px;color:var(--ink-2);line-height:1.75;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-foot{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;
    padding-top:12px;border-top:1px dashed var(--line);
  }
  .post-date{font-size:13px;color:var(--ink-3);}
  .post-more{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
  .post-card:hover .post-more{gap:10px;}
  .empty-state{
    grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
    padding:56px 24px;text-align:center;
  }
  .empty-state i{font-size:30px;color:var(--ink-3);}
  .empty-state p{margin-top:14px;color:var(--ink-2);font-size:15px;}
  .empty-state .btn{margin-top:20px;}

  /* FAQ */
  .faq-grid{display:grid;grid-template-columns:1fr;gap:40px;}
  @media (min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px;align-items:start;}}
  .faq-aside{position:relative;}
  @media (min-width:1024px){.faq-aside{position:sticky;top:104px;}}
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item.open{border-color:#CFDDFA;box-shadow:var(--sh-1);}
  .faq-toggle{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);text-align:left;
    position:relative;transition:color .18s ease;
  }
  .faq-toggle:hover{color:var(--brand);}
  .faq-item.open .faq-toggle{color:var(--brand);}
  .faq-item.open .faq-toggle::before{
    content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--brand);
  }
  .faq-icon{flex-shrink:0;color:var(--ink-3);font-size:15px;transition:transform .25s ease,color .25s ease;}
  .faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand);}
  .faq-panel{max-height:0;overflow:hidden;transition:max-height .28s ease;}
  .faq-panel-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);}

  /* CTA */
  .cta-block{
    background:var(--bg-soft);border:1px solid #DDE7FB;border-radius:var(--r-xl);
    padding:36px 24px;
  }
  @media (min-width:1024px){.cta-block{padding:56px 48px;}}
  .cta-grid{display:grid;grid-template-columns:1fr;gap:36px;}
  @media (min-width:1024px){.cta-grid{grid-template-columns:6fr 6fr;gap:56px;align-items:center;}}
  .cta-list{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
  .cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2);}
  .cta-list i{color:var(--teal);margin-top:5px;font-size:14px;}
  .form-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:26px 22px;box-shadow:var(--sh-1);
  }
  @media (min-width:768px){.form-card{padding:32px 30px;}}
  .field{margin-bottom:18px;}
  .field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
  .field input,.field select{
    width:100%;height:44px;border-radius:10px;border:1px solid var(--line);
    background:#FBFCFE;padding:0 14px;outline:none;
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .field input:focus,.field select:focus{
    background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,90,217,.12);
  }
  .field input:invalid:not(:placeholder-shown){border-color:#E2574C;}
  .field .hint{font-size:12px;color:var(--ink-3);margin-top:6px;}
  .form-note{font-size:12px;color:var(--ink-3);margin-top:14px;line-height:1.7;}
  .form-alert{
    display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
    background:#E9F8F5;color:#0B7A6D;font-size:14px;border:1px solid #BFEAE2;
  }
  .form-alert.show{display:block;}

  /* 页脚 */
  .site-footer{background:var(--bg-page);border-top:1px solid var(--line);margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 36px;}
  @media (min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;}}
  .footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px;}
  .footer-col li{margin-bottom:10px;}
  .footer-col a{font-size:14px;color:var(--ink-2);}
  .footer-col a:hover{color:var(--brand);}
  .footer-brand p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-top:16px;max-width:30em;}
  .footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--ink-2);}
  .footer-contact span{display:flex;align-items:center;gap:8px;}
  .footer-contact i{color:var(--brand);font-size:13px;width:16px;}
  .footer-bottom{
    border-top:1px solid var(--line);padding:18px 0 26px;
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  }
  .footer-bottom p{font-size:13px;color:var(--ink-3);}
  .footer-legal{display:flex;flex-wrap:wrap;gap:18px;}
  .footer-legal a{font-size:13px;color:var(--ink-3);}
  .footer-legal a:hover{color:var(--brand);}

/* roulang page: article */
:root{
  --brand:#1F5AD9;
  --brand-dark:#1A4CBB;
  --accent:#FF6B35;
  --accent-dark:#ED5A24;
  --teal:#12A594;
  --bg-page:#F5F7FB;
  --bg-card:#FFFFFF;
  --bg-soft:#EEF3FF;
  --ink:#0E1726;
  --ink-2:#46536B;
  --ink-3:#8A97AD;
  --line:#E5E9F2;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-btn:12px;
  --shadow-1:0 2px 8px rgba(14,23,38,.06), 0 12px 32px -14px rgba(14,23,38,.12);
  --shadow-2:0 6px 14px rgba(14,23,38,.08), 0 20px 40px -16px rgba(14,23,38,.18);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--ink-2);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink);}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.3px;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 3px rgba(14,23,38,.04);
}
.header-inner{
  display:flex;align-items:center;gap:16px;
  min-height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--bg-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;border:1px solid #DCE6FB;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.3px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:14px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 12px;border-radius:9px;
  font-size:16px;color:var(--ink-2);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--bg-soft);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:42px;width:230px;padding:0 16px;
  background:#F2F5FA;border:1px solid transparent;border-radius:999px;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.search-box i{color:var(--ink-3);font-size:14px;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,90,217,.12);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:17px;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);background:#fff;padding:14px 16px 22px;
}
.mobile-drawer.is-open{display:block;}
.drawer-link{
  display:block;line-height:44px;height:44px;padding:0 8px;
  border-bottom:1px dashed var(--line);color:var(--ink-2);font-size:16px;
}
.drawer-link:hover,.drawer-link.active{color:var(--brand);}
.drawer-search{display:flex;gap:8px;margin:16px 0 12px;}
.drawer-search input{
  flex:1;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;outline:none;
}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,90,217,.12);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px -10px rgba(255,107,53,.75);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(255,107,53,.8);}
.btn-accent:active{transform:translateY(0);background:#D9501F;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand);}
.btn-ghost:hover{border-color:var(--brand);background:var(--bg-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);}
.link-more:hover{gap:10px;color:var(--brand-dark);}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  font-size:12px;font-weight:600;background:var(--bg-soft);color:var(--brand);letter-spacing:.2px;
}
.badge-accent{background:#FFF0E9;color:var(--accent);}
.badge-teal{background:#E6F6F4;color:var(--teal);}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:14px;border:1px solid var(--line);background:#fff;color:var(--ink-2);
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------- article head ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:22px 0 0;}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs i{font-size:10px;color:#B9C3D4;}
.article-hero{
  position:relative;overflow:hidden;background:var(--bg-soft);border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(31,90,217,.14),rgba(31,90,217,0) 70%);
  pointer-events:none;
}
.article-head{position:relative;padding:26px 0 40px;max-width:820px;}
.article-head h1{
  font-size:30px;line-height:1.3;letter-spacing:-.4px;margin:16px 0 18px;
}
@media(min-width:1024px){.article-head h1{font-size:40px;line-height:1.24;}}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--ink-3);}
.meta-row .dot{color:#C4CDDD;}
.meta-row time,.meta-row .num{font-variant-numeric:tabular-nums;}
.lead-line{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-2);
  padding-left:16px;border-left:3px solid var(--brand);
}

/* ---------- article body ---------- */
.article-wrap{padding:40px 0 8px;}
.article-col{max-width:760px;margin:0 auto;}
.article-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:28px 22px;
}
@media(min-width:768px){.article-card{padding:44px 48px;}}
.article-body{font-size:17px;line-height:1.85;color:var(--ink-2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:25px;line-height:1.4;margin:2em 0 .8em;padding-left:16px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;font-weight:600;margin:1.6em 0 .6em;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--bg-soft);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  color:var(--ink-2);font-style:italic;
}
.article-body img{border-radius:12px;margin:1.6em auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--bg-soft);color:var(--ink);font-weight:600;}
.article-body code{
  background:#F2F5FA;border-radius:4px;padding:2px 6px;font-size:14px;color:var(--brand-dark);
}
.article-body pre{
  background:#0E1726;color:#E8EEF9;border-radius:12px;padding:18px;overflow:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.empty-state{
  text-align:center;padding:56px 20px;color:var(--ink-2);
}
.empty-state i{font-size:34px;color:var(--brand);margin-bottom:16px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-3);margin-bottom:22px;}

/* ---------- tags & share ---------- */
.article-foot{padding:26px 0 0;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--bg-soft);color:var(--brand);font-size:13px;font-weight:500;
}
.tag-row .tag:hover{background:#DFE8FF;color:var(--brand-dark);}
.share-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:26px;padding-top:22px;border-top:1px dashed var(--line);
}
.share-row .share-label{font-size:14px;color:var(--ink-3);}
.share-btns{display:flex;gap:10px;}
.share-btns a{
  width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);font-size:15px;
}
.share-btns a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.back-row{display:flex;justify-content:center;margin:34px 0 0;}

/* ---------- related ---------- */
.section{padding:64px 0;}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px;}
.section-head h2{font-size:27px;letter-spacing:-.4px;}
@media(min-width:1024px){.section-head h2{font-size:31px;}}
.section-head p{margin-top:10px;font-size:16px;color:var(--ink-2);}
.card-grid{display:grid;gap:24px;grid-template-columns:1fr;}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6E0F5;}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:18px;line-height:1.5;margin:12px 0 10px;font-weight:600;}
.post-body h3 a{color:var(--ink);}
.post-body h3 a:hover{color:var(--brand);}
.post-body p{
  font-size:14px;line-height:1.75;color:var(--ink-2);flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink-3);
}
.post-foot time{font-variant-numeric:tabular-nums;}
.post-foot .arrow{color:var(--brand);font-size:14px;}

/* ---------- CTA band ---------- */
.cta-band{padding:0 0 72px;}
.cta-inner{
  background:var(--bg-soft);border:1px solid #DCE6FB;border-radius:var(--radius-lg);
  padding:34px 22px;display:grid;gap:26px;grid-template-columns:1fr;
  box-shadow:var(--shadow-1);
}
@media(min-width:768px){.cta-inner{padding:44px 40px;}}
@media(min-width:1024px){.cta-inner{grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}}
.cta-copy h2{font-size:26px;line-height:1.35;}
@media(min-width:1024px){.cta-copy h2{font-size:30px;}}
.cta-copy p{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:38em;}
.check-list{list-style:none;margin-top:18px;display:grid;gap:10px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);}
.check-list i{color:var(--teal);margin-top:4px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:6px;}
.field input,.field select{
  width:100%;height:44px;border:1px solid var(--line);border-radius:10px;
  padding:0 14px;background:#fff;outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,90,217,.12);}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-page);border-top:1px solid var(--line);padding:56px 0 0;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.footer-col ul{list-style:none;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--ink-2);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-top:14px;max-width:34em;}
.footer-contact{margin-top:16px;display:grid;gap:8px;font-size:14px;color:var(--ink-3);}
.footer-contact span{display:flex;align-items:center;gap:8px;}
.footer-contact i{color:var(--brand);}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap;}
.footer-legal a{font-size:13px;color:var(--ink-3);}
.footer-legal a:hover{color:var(--brand);}

@media(max-width:1023px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .menu-toggle{display:inline-flex;}
}
@media(max-width:520px){
  .brand-text{font-size:16px;}
  .article-head h1{font-size:26px;}
  .header-actions{gap:8px;}
}

/* roulang page: category1 */
:root{
    --brand:#1F5AD9;
    --brand-dark:#1746AE;
    --accent:#FF6B35;
    --accent-dark:#E85A28;
    --teal:#12A594;
    --bg-page:#F5F7FB;
    --bg-card:#FFFFFF;
    --bg-soft:#EEF3FF;
    --ink:#0E1726;
    --ink-2:#46536B;
    --ink-3:#8A97AD;
    --line:#E5E9F2;
    --radius-card:16px;
    --radius-block:24px;
    --radius-btn:12px;
    --shadow-soft:0 2px 8px rgba(14,23,38,.06), 0 12px 32px -14px rgba(14,23,38,.12);
    --shadow-hover:0 6px 14px rgba(14,23,38,.08), 0 20px 40px -16px rgba(14,23,38,.18);
    --font-base:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  .page-body{
    margin:0;
    font-family:var(--font-base);
    font-size:16px;
    line-height:1.8;
    color:var(--ink-2);
    background:var(--bg-page);
    -webkit-font-smoothing:antialiased;
  }
  .page-body h1,.page-body h2,.page-body h3,.page-body h4{
    margin:0;
    color:var(--ink);
    font-family:var(--font-base);
    letter-spacing:-.2px;
  }
  .page-body p{margin:0}
  .page-body ul{margin:0;padding:0;list-style:none}
  .page-body img{max-width:100%;display:block}
  .page-body a{color:var(--brand);text-decoration:none;transition:color .18s ease}
  .page-body a:hover{color:var(--brand-dark)}
  .page-body button{font-family:inherit}
  .num{font-variant-numeric:tabular-nums}

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

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(14,23,38,.04);
  }
  .header-inner{
    display:flex;align-items:center;gap:20px;
    height:68px;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700}
  .brand:hover{color:var(--brand)}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;flex:none;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--bg-soft);color:var(--brand);font-size:16px;
    border:1px solid #D9E3FB;
  }
  .brand-text{font-size:18px;font-weight:700;letter-spacing:-.3px}
  .nav-links{display:none;align-items:center;gap:6px;margin-left:12px}
  .nav-link{
    position:relative;display:inline-block;
    padding:8px 12px;font-size:16px;color:var(--ink-2);border-radius:8px;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
    transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--brand)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.active{color:var(--brand);font-weight:600}
  .nav-link.active::after{transform:scaleX(1)}
  .nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
  .search-pill{
    display:none;align-items:center;gap:8px;
    height:40px;padding:0 16px;border-radius:999px;
    background:var(--bg-page);border:1px solid var(--line);
    color:var(--ink-3);font-size:14px;min-width:206px;
  }
  .search-pill input{
    border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);
    width:100%;font-family:inherit;
  }
  .search-pill input::placeholder{color:var(--ink-3)}
  .search-pill:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,217,.14)}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;line-height:1;cursor:pointer;
    border:1px solid transparent;text-decoration:none;
    transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .btn-primary{background:var(--accent);color:#fff}
  .btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px -12px rgba(255,107,53,.9)}
  .btn-primary:active{transform:translateY(0);background:#CF4D1F}
  .btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
  .btn-ghost:hover{border-color:#C9D7F5;color:var(--brand-dark);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0);background:var(--bg-soft)}
  .btn-lg{height:48px;padding:0 28px;font-size:16px}
  .btn-block{width:100%}
  .header-cta{display:none;height:40px;padding:0 20px;font-size:15px}
  .menu-toggle{
    width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    background:#fff;color:var(--ink);font-size:17px;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .menu-toggle:hover{border-color:#C9D7F5;color:var(--brand)}
  .mobile-drawer{
    display:none;border-top:1px solid var(--line);background:#fff;
    padding:12px 0 20px;
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer .nav-link{display:block;line-height:44px;padding:0 16px;border-radius:10px}
  .mobile-drawer .nav-link::after{display:none}
  .mobile-drawer .nav-link.active{background:var(--bg-soft)}
  .mobile-drawer .drawer-foot{display:grid;gap:10px;margin-top:14px;padding:0 16px}
  @media (min-width:1024px){
    .nav-links{display:flex}
    .search-pill{display:inline-flex}
    .header-cta{display:inline-flex}
    .menu-toggle{display:none}
    .mobile-drawer{display:none !important}
  }

  /* ============ Hero ============ */
  .page-hero{
    background:var(--bg-soft);
    border-bottom:1px solid var(--line);
    padding:36px 0 56px;
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:20px}
  .breadcrumb a{color:var(--ink-3)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:#C3CCDE}
  .hero-grid{display:grid;gap:36px;align-items:center}
  @media (min-width:1024px){
    .page-hero{padding:52px 0 72px}
    .hero-grid{grid-template-columns:7fr 5fr;gap:48px}
  }
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
    font-size:12px;font-weight:600;border-radius:6px;line-height:1;
  }
  .badge-blue{background:#E4EDFF;color:var(--brand)}
  .badge-orange{background:#FFEDE6;color:#C8451A}
  .badge-teal{background:#E1F5F2;color:#0B7C70}
  .page-hero h1{
    font-size:30px;font-weight:700;line-height:1.22;letter-spacing:-.4px;
    margin:16px 0 14px;
  }
  @media (min-width:1024px){.page-hero h1{font-size:42px}}
  .hero-sub{font-size:18px;color:var(--ink);font-weight:600;line-height:1.6}
  .hero-desc{margin-top:14px;font-size:16px;line-height:1.85;max-width:38em}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-points{display:grid;gap:10px;margin-top:26px}
  .hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2)}
  .hero-points i{color:var(--teal);margin-top:5px;font-size:14px}
  .hero-visual{position:relative}
  .hero-visual img{
    width:100%;height:280px;object-fit:cover;border-radius:20px;
    background:var(--bg-card);box-shadow:var(--shadow-soft);
  }
  @media (min-width:1024px){.hero-visual img{height:400px}}
  .hero-visual::after{
    content:"";position:absolute;inset:0;border-radius:20px;pointer-events:none;
    background:linear-gradient(160deg,rgba(255,255,255,.34) 0%,rgba(255,255,255,0) 62%);
  }
  .float-card{
    position:relative;z-index:2;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow-soft);padding:12px 16px;
  }
  .float-card strong{display:block;font-size:20px;color:var(--teal);line-height:1.3}
  .float-card span{font-size:13px;color:var(--ink-3)}
  .float-stack{display:flex;gap:12px;flex-wrap:wrap;margin-top:-32px;padding:0 16px}
  @media (min-width:1024px){
    .float-stack{position:absolute;left:24px;right:24px;bottom:24px;margin:0;padding:0}
    .float-card{flex:1 1 0;min-width:0}
  }

  /* ============ Metric bar ============ */
  .metric-bar{background:#fff;border-bottom:1px solid var(--line)}
  .metric-grid{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:20px 24px;padding:24px 0;
  }
  @media (min-width:768px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));padding:22px 0}}
  .metric-item strong{display:block;font-size:26px;font-weight:700;color:var(--brand);line-height:1.2}
  .metric-item strong .unit{font-size:15px;font-weight:600;margin-left:2px;color:var(--ink-2)}
  .metric-item span{display:block;margin-top:4px;font-size:13px;color:var(--ink-3)}

  /* ============ Sections ============ */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:88px 0}}
  .section-alt{background:var(--bg-page)}
  .section-white{background:#fff}
  .section-soft{background:var(--bg-soft)}
  .section-head{max-width:720px}
  .section-head h2{
    font-size:26px;font-weight:700;line-height:1.3;letter-spacing:-.3px;
    padding-left:14px;position:relative;
  }
  .section-head h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);
  }
  @media (min-width:1024px){.section-head h2{font-size:32px}}
  .section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85}
  .section-top{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between}

  .grid-3{display:grid;gap:24px;margin-top:36px}
  @media (min-width:768px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}

  .card{
    background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px;box-shadow:var(--shadow-soft);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E1F3}
  .card h3{font-size:19px;font-weight:600;line-height:1.45}
  .card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2)}
  .card-icon{
    width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
    background:var(--bg-soft);color:var(--brand);font-size:18px;margin-bottom:16px;
  }
  .card-icon.orange{background:#FFEDE6;color:var(--accent-dark)}
  .card-icon.teal{background:#E1F5F2;color:#0B7C70}

  .check-list{display:grid;gap:12px;margin-top:22px}
  .check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;line-height:1.75}
  .check-list i{color:var(--teal);margin-top:6px;font-size:13px}

  /* Checklist panel */
  .panel-grid{display:grid;gap:24px;margin-top:36px}
  @media (min-width:1024px){.panel-grid{grid-template-columns:7fr 5fr;gap:40px}}
  .panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px;box-shadow:var(--shadow-soft);
  }
  .panel h3{font-size:19px;font-weight:600}
  .materials{display:grid;gap:14px;margin-top:20px}
  @media (min-width:768px){.materials{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .material-item{
    display:flex;gap:12px;align-items:flex-start;
    border:1px dashed var(--line);border-radius:12px;padding:14px 16px;background:#FBFCFE;
  }
  .material-item i{color:var(--brand);margin-top:5px;font-size:14px}
  .material-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.5}
  .material-item span{display:block;font-size:13px;color:var(--ink-3);margin-top:3px;line-height:1.7}

  .note-card{
    background:var(--bg-soft);border:1px solid #DCE6FB;border-radius:var(--radius-card);
    padding:26px;
  }
  .note-card h3{font-size:18px;font-weight:600}
  .note-card p{margin-top:10px;font-size:15px;line-height:1.8}
  .note-card .divider{height:1px;background:#DCE6FB;margin:20px 0;border:0}
  .note-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-3)}
  .note-meta strong{color:var(--ink);font-size:15px}

  /* ============ Steps timeline ============ */
  .steps{position:relative;margin-top:40px;padding-left:32px}
  .steps::before{
    content:"";position:absolute;left:21px;top:12px;bottom:12px;width:2px;
    background:linear-gradient(180deg,#C9D7F5 0%,var(--line) 100%);
  }
  .step{position:relative;padding-bottom:28px}
  .step:last-child{padding-bottom:0}
  .step-num{
    position:absolute;left:-32px;top:0;
    width:44px;height:44px;border-radius:999px;background:#fff;
    border:2px solid #FFD3C2;color:var(--accent-dark);
    display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  }
  .step-body{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:20px 22px;box-shadow:var(--shadow-soft);margin-left:26px;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .step-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .step-body h3{font-size:18px;font-weight:600}
  .step-body p{margin-top:8px;font-size:15px;line-height:1.8}
  .step-tag{
    display:inline-block;margin-top:12px;font-size:13px;color:var(--brand);
    background:#E9F0FF;border-radius:6px;padding:3px 9px;
  }
  @media (min-width:1024px){
    .steps{padding-left:0;display:grid;gap:24px;grid-template-columns:repeat(5,minmax(0,1fr))}
    .steps::before{
      left:22px;right:22px;top:22px;bottom:auto;width:auto;height:2px;
      background:repeating-linear-gradient(90deg,#C9D7F5 0 10px,transparent 10px 20px);
    }
    .step{padding-bottom:0}
    .step-body{margin-left:0;margin-top:26px}
  }

  /* ============ Data strip ============ */
  .data-strip{
    background:var(--bg-soft);border:1px solid #DCE6FB;border-radius:var(--radius-block);
    padding:28px;margin-top:44px;
    display:grid;gap:22px;
  }
  @media (min-width:768px){.data-strip{grid-template-columns:repeat(4,minmax(0,1fr));padding:30px 32px}}
  .data-item{display:flex;gap:12px;align-items:flex-start}
  .data-item i{color:var(--brand);font-size:18px;margin-top:4px}
  .data-item strong{display:block;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}
  .data-item span{display:block;font-size:13px;color:var(--ink-3);margin-top:2px}

  /* ============ FAQ ============ */
  .faq-grid{display:grid;gap:32px;margin-top:36px}
  @media (min-width:1024px){.faq-grid{grid-template-columns:5fr 7fr;gap:48px}}
  .faq-aside{align-self:start}
  @media (min-width:1024px){.faq-aside{position:sticky;top:96px}}
  .faq-aside h2{
    font-size:26px;font-weight:700;line-height:1.3;padding-left:14px;position:relative;
  }
  .faq-aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand)}
  @media (min-width:1024px){.faq-aside h2{font-size:30px}}
  .faq-aside p{margin-top:14px;font-size:16px;line-height:1.85}
  .faq-aside .btn{margin-top:22px}
  .faq-list{display:grid;gap:12px}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:12px;
    overflow:hidden;position:relative;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .faq-item:hover{border-color:#D3DFF6}
  .faq-item.open{border-color:#C9D7F5;box-shadow:var(--shadow-soft)}
  .faq-item.open::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;background:var(--brand);border-radius:0 3px 3px 0}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
  .faq-q i{color:var(--brand);font-size:14px;transition:transform .22s ease;flex:none}
  .faq-item.open .faq-q i{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--ink-2)}

  /* ============ CTA ============ */
  .cta-block{
    background:var(--bg-soft);border:1px solid #DCE6FB;border-radius:var(--radius-block);
    padding:30px 22px;display:grid;gap:32px;
  }
  @media (min-width:768px){.cta-block{padding:44px}}
  @media (min-width:1024px){.cta-block{grid-template-columns:6fr 6fr;gap:48px;align-items:start;padding:48px}}
  .cta-block h2{font-size:26px;font-weight:700;line-height:1.32}
  @media (min-width:1024px){.cta-block h2{font-size:30px}}
  .cta-block .lead{margin-top:14px;font-size:16px;line-height:1.85}
  .form-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px;box-shadow:var(--shadow-soft);
  }
  @media (min-width:768px){.form-card{padding:28px}}
  .form-row{display:grid;gap:16px}
  @media (min-width:768px){.form-row.two{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .field{display:grid;gap:7px;margin-top:16px}
  .field:first-child{margin-top:0}
  .field label{font-size:14px;color:var(--ink-2);font-weight:600}
  .field input,.field select,.field textarea{
    width:100%;min-height:44px;padding:10px 14px;font-size:15px;font-family:inherit;
    color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:10px;
    outline:none;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field textarea{min-height:88px;resize:vertical;line-height:1.7}
  .field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,90,217,.14);
  }
  .field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
  .field .hint{font-size:13px;color:var(--ink-3)}
  .form-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}
  .form-alert{
    display:none;margin-top:14px;padding:10px 14px;border-radius:10px;
    background:#E1F5F2;color:#0B7C70;font-size:14px;border:1px solid #BFE9E3;
  }
  .form-alert.show{display:block}
  .form-alert.error{background:#FFF1EC;color:#B8431C;border-color:#FFD6C7}

  /* ============ Footer ============ */
  .site-footer{background:var(--bg-page);border-top:1px solid var(--line);padding:48px 0 0;margin-top:0}
  .footer-grid{display:grid;gap:32px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:4fr 2fr 3fr 3fr;gap:40px}}
  .footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{font-size:14px;color:var(--ink-2)}
  .footer-col a:hover{color:var(--brand)}
  .footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:var(--ink-2);max-width:34em}
  .footer-contact{display:grid;gap:8px;margin-top:16px;font-size:14px;color:var(--ink-3)}
  .footer-contact i{color:var(--brand);margin-right:6px}
  .footer-bottom{
    margin-top:40px;border-top:1px solid var(--line);padding:16px 0 22px;
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  }
  .footer-bottom p{font-size:13px;color:var(--ink-3)}
  .footer-legal{display:flex;flex-wrap:wrap;gap:16px}
  .footer-legal a{font-size:13px;color:var(--ink-3)}
  .footer-legal a:hover{color:var(--brand)}

  @media (max-width:520px){
    .brand-text{font-size:16px}
    .hero-actions .btn{width:100%}
    .card{padding:22px}
  }

/* roulang page: category2 */
:root{
    --brand:#1F5AD9;
    --brand-dark:#1746AC;
    --accent:#FF6B35;
    --accent-dark:#E8571F;
    --teal:#12A594;
    --bg-page:#F5F7FB;
    --bg-card:#FFFFFF;
    --bg-soft:#EEF3FF;
    --ink:#0E1726;
    --ink-2:#46536B;
    --ink-3:#8A97AD;
    --line:#E5E9F2;
    --radius-card:16px;
    --radius-block:24px;
    --radius-btn:12px;
    --radius-pill:999px;
    --shadow-1:0 2px 8px rgba(14,23,38,.06),0 12px 32px -14px rgba(14,23,38,.12);
    --shadow-2:0 6px 14px rgba(14,23,38,.08),0 20px 40px -16px rgba(14,23,38,.18);
    --shell:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink-2);
    background:var(--bg-page);
    -webkit-font-smoothing:antialiased;
  }
  body.no-scroll{overflow:hidden;}
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  img{max-width:100%;display:block;}
  a{color:var(--brand);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
  a:hover{color:var(--brand-dark);}
  a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
    border-radius:6px;
  }
  button{font-family:inherit;cursor:pointer;}
  input,select{font-family:inherit;font-size:15px;color:var(--ink);}
  .num{font-variant-numeric:tabular-nums;}

  .shell{
    width:100%;
    max-width:var(--shell);
    margin:0 auto;
    padding:0 16px;
  }

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(14,23,38,.04);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .brand-mark{
    width:36px;
    height:36px;
    border-radius:10px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    background:var(--brand);
    color:#fff;
    font-size:17px;
    box-shadow:0 6px 14px -6px rgba(31,90,217,.6);
  }
  .brand-text{
    font-size:18px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:-.2px;
    white-space:nowrap;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:8px;
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 12px;
    font-size:16px;
    color:var(--ink-2);
    border-radius:8px;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:12px;
    right:12px;
    bottom:2px;
    height:2px;
    border-radius:2px;
    background:var(--brand);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--brand);font-weight:600;}
  .nav-link.active::after{transform:scaleX(1);}

  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
  }
  .search-box{
    display:flex;
    align-items:center;
    gap:8px;
    width:230px;
    height:40px;
    padding:0 14px;
    background:var(--bg-page);
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  }
  .search-box i{color:var(--ink-3);font-size:14px;}
  .search-box input{
    flex:1;
    min-width:0;
    border:0;
    background:transparent;
    font-size:14px;
    color:var(--ink);
    outline:none;
  }
  .search-box input::placeholder{color:var(--ink-3);}
  .search-box:focus-within{
    background:#fff;
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(31,90,217,.12);
  }
  .menu-toggle{
    display:none;
    width:42px;
    height:42px;
    border:1px solid var(--line);
    border-radius:12px;
    background:#fff;
    color:var(--ink);
    font-size:16px;
  }
  .menu-toggle:hover{border-color:var(--brand);color:var(--brand);}

  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:#fff;
    padding:12px 16px 20px;
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer .nav-link{
    display:block;
    padding:12px 4px;
    font-size:16px;
    border-bottom:1px dashed var(--line);
    border-radius:0;
  }
  .mobile-drawer .nav-link::after{display:none;}
  .mobile-drawer .drawer-foot{
    display:flex;
    flex-direction:column;
    gap:12px;
    margin-top:16px;
  }
  .mobile-drawer .search-box{width:100%;}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 24px;
    font-size:15px;
    font-weight:600;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(0);}
  .btn-primary{
    background:var(--accent);
    color:#fff;
    box-shadow:0 8px 18px -10px rgba(255,107,53,.9);
  }
  .btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
  .btn-ghost{
    background:#fff;
    color:var(--brand);
    border-color:var(--line);
  }
  .btn-ghost:hover{border-color:var(--brand);background:var(--bg-soft);color:var(--brand-dark);transform:translateY(-1px);}
  .btn-pill{border-radius:var(--radius-pill);}
  .btn-lg{height:48px;padding:0 28px;font-size:16px;}
  .btn-block{width:100%;}
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:15px;
    font-weight:600;
    color:var(--brand);
  }
  .text-link i{font-size:12px;transition:transform .18s ease;}
  .text-link:hover i{transform:translateX(3px);}

  /* ---------- Breadcrumb / Page head ---------- */
  .page-head{
    background:linear-gradient(180deg,#FFFFFF 0%,var(--bg-soft) 100%);
    border-bottom:1px solid var(--line);
    padding:36px 0 44px;
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--ink-3);
    margin-bottom:18px;
    flex-wrap:wrap;
  }
  .breadcrumb a{color:var(--ink-3);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb i{font-size:10px;}

  .page-head-grid{
    display:grid;
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:40px;
    align-items:center;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:26px;
    padding:0 12px;
    border-radius:6px;
    background:#fff;
    border:1px solid rgba(31,90,217,.18);
    color:var(--brand);
    font-size:13px;
    font-weight:600;
    margin-bottom:16px;
  }
  .page-head h1{
    font-size:30px;
    letter-spacing:-.4px;
    line-height:1.24;
    margin-bottom:14px;
  }
  .page-head .lede{
    font-size:16px;
    line-height:1.85;
    color:var(--ink-2);
    max-width:44ch;
  }
  .tag-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:22px;
  }
  .tag-pill{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:32px;
    padding:0 14px;
    border-radius:var(--radius-pill);
    background:#fff;
    border:1px solid var(--line);
    font-size:13px;
    color:var(--ink-2);
    transition:border-color .18s ease,color .18s ease,transform .18s ease;
  }
  .tag-pill:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}

  .head-panel{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-block);
    box-shadow:var(--shadow-1);
    padding:24px;
  }
  .head-panel h3{
    font-size:16px;
    margin-bottom:14px;
  }
  .head-panel ul{display:grid;gap:12px;}
  .head-panel li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:14px;
    line-height:1.7;
    color:var(--ink-2);
  }
  .head-panel li i{color:var(--teal);margin-top:5px;font-size:13px;}

  /* ---------- Section base ---------- */
  .section{padding:64px 0;}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:720px;margin-bottom:40px;}
  .section-head h2{
    font-size:26px;
    letter-spacing:-.3px;
    padding-left:14px;
    position:relative;
    margin-bottom:12px;
  }
  .section-head h2::before{
    content:"";
    position:absolute;
    left:0;top:6px;bottom:6px;
    width:4px;
    border-radius:2px;
    background:var(--brand);
  }
  .section-head p{font-size:16px;line-height:1.85;color:var(--ink-2);}

  /* ---------- Alternating feature rows ---------- */
  .feature-list{display:grid;gap:56px;}
  .feature-row{
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    gap:40px;
    align-items:center;
  }
  .feature-row.reverse .feature-media{order:2;}
  .feature-row.reverse .feature-body{order:1;}
  .feature-media{
    position:relative;
    border-radius:var(--radius-card);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--bg-soft);
    box-shadow:var(--shadow-1);
    transition:box-shadow .22s ease,transform .22s ease;
  }
  .feature-media:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
  .feature-media img{
    width:100%;
    aspect-ratio:16 / 10;
    object-fit:cover;
    background:var(--bg-soft);
  }
  .feature-media .badge-float{
    position:absolute;
    left:16px;
    bottom:16px;
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:30px;
    padding:0 12px;
    border-radius:6px;
    background:rgba(255,255,255,.94);
    border:1px solid var(--line);
    font-size:12.5px;
    color:var(--brand);
    font-weight:600;
  }
  .badge{
    display:inline-flex;
    align-items:center;
    height:24px;
    padding:0 10px;
    border-radius:6px;
    font-size:12px;
    font-weight:600;
    background:var(--bg-soft);
    color:var(--brand);
  }
  .badge-accent{background:#FFF1EA;color:var(--accent-dark);}
  .feature-body h2{
    font-size:24px;
    letter-spacing:-.3px;
    margin:14px 0 12px;
  }
  .feature-body p{font-size:16px;line-height:1.85;color:var(--ink-2);}
  .check-list{margin-top:18px;display:grid;gap:10px;}
  .check-list li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:15px;
    line-height:1.7;
    color:var(--ink-2);
  }
  .check-list li i{
    color:var(--teal);
    font-size:13px;
    margin-top:6px;
    flex-shrink:0;
  }
  .feature-body .text-link{margin-top:20px;}

  /* ---------- Stat strip ---------- */
  .stat-strip{
    background:var(--bg-soft);
    border-radius:var(--radius-block);
    padding:32px 24px;
  }
  .stat-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:24px;
  }
  .stat-item{
    display:flex;
    align-items:flex-start;
    gap:12px;
  }
  .stat-item .stat-icon{
    width:40px;
    height:40px;
    flex-shrink:0;
    border-radius:12px;
    background:#fff;
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
    border:1px solid rgba(31,90,217,.14);
  }
  .stat-item strong{
    display:block;
    font-size:22px;
    font-weight:700;
    color:var(--ink);
    font-variant-numeric:tabular-nums;
    line-height:1.3;
  }
  .stat-item span{
    display:block;
    font-size:13px;
    color:var(--ink-3);
    line-height:1.5;
  }

  /* ---------- Capability matrix ---------- */
  .matrix-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .matrix-card{
    background:var(--bg-card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:26px;
    box-shadow:var(--shadow-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    display:flex;
    flex-direction:column;
  }
  .matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,90,217,.28);}
  .matrix-card .card-icon{
    width:44px;
    height:44px;
    border-radius:12px;
    background:var(--bg-soft);
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:18px;
    margin-bottom:16px;
  }
  .matrix-card h3{font-size:19px;margin-bottom:10px;}
  .matrix-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2);}
  .matrix-card ul{margin-top:16px;display:grid;gap:8px;}
  .matrix-card ul li{
    font-size:14px;
    color:var(--ink-2);
    padding-top:8px;
    border-top:1px dashed var(--line);
  }
  .matrix-card .text-link{margin-top:18px;font-size:14px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:900px;}
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    overflow:hidden;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .faq-item:hover{border-color:rgba(31,90,217,.3);}
  .faq-item[open]{box-shadow:var(--shadow-1);border-color:rgba(31,90,217,.32);}
  .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;
    color:var(--ink);
    position:relative;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";
    position:absolute;
    left:0;top:14px;bottom:14px;
    width:3px;
    border-radius:0 3px 3px 0;
    background:var(--brand);
    opacity:0;
    transition:opacity .18s ease;
  }
  .faq-item[open] summary::before{opacity:1;}
  .faq-item summary .faq-icon{
    flex-shrink:0;
    width:26px;
    height:26px;
    border-radius:8px;
    background:var(--bg-soft);
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:12px;
    transition:transform .22s ease,background .22s ease,color .22s ease;
  }
  .faq-item[open] summary .faq-icon{
    transform:rotate(45deg);
    background:var(--accent);
    color:#fff;
  }
  .faq-answer{
    padding:0 20px 20px 20px;
    font-size:15px;
    line-height:1.85;
    color:var(--ink-2);
  }

  /* ---------- CTA ---------- */
  .cta-block{
    background:var(--bg-soft);
    border:1px solid rgba(31,90,217,.14);
    border-radius:var(--radius-block);
    padding:40px;
    display:grid;
    grid-template-columns:minmax(0,6fr) minmax(0,6fr);
    gap:40px;
    align-items:start;
  }
  .cta-block h2{font-size:28px;letter-spacing:-.3px;margin-bottom:14px;}
  .cta-block .cta-sub{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:36ch;}
  .cta-points{margin-top:22px;display:grid;gap:12px;}
  .cta-points li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:15px;
    color:var(--ink-2);
  }
  .cta-points li i{color:var(--teal);font-size:13px;margin-top:6px;}

  .apply-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    padding:26px;
  }
  .apply-card h3{font-size:18px;margin-bottom:6px;}
  .apply-card .apply-hint{font-size:13.5px;color:var(--ink-3);margin-bottom:18px;}
  .form-row{margin-bottom:16px;}
  .form-row label{
    display:block;
    font-size:14px;
    color:var(--ink-2);
    margin-bottom:6px;
    font-weight:500;
  }
  .form-row input,
  .form-row select{
    width:100%;
    height:44px;
    padding:0 14px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    outline:none;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .form-row input::placeholder{color:var(--ink-3);}
  .form-row input:focus,
  .form-row select:focus{
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(31,90,217,.12);
  }
  .form-note{
    margin-top:12px;
    font-size:13px;
    color:var(--ink-3);
    line-height:1.6;
  }

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--bg-page);
    border-top:1px solid var(--line);
    padding:56px 0 0;
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:32px;
    padding-bottom:40px;
  }
  .footer-brand .brand{margin-bottom:16px;}
  .footer-brand p{
    font-size:14px;
    line-height:1.8;
    color:var(--ink-2);
    max-width:34ch;
  }
  .footer-contact{
    margin-top:16px;
    display:grid;
    gap:8px;
    font-size:13.5px;
    color:var(--ink-3);
  }
  .footer-contact i{color:var(--brand);margin-right:6px;}
  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:var(--ink);
    margin-bottom:14px;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col ul a{
    font-size:14px;
    color:var(--ink-2);
  }
  .footer-col ul a:hover{color:var(--brand);}
  .footer-bottom{
    border-top:1px solid var(--line);
    padding:18px 0 24px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
  }
  .footer-bottom p{font-size:13px;color:var(--ink-3);}
  .footer-legal{display:flex;gap:18px;flex-wrap:wrap;}
  .footer-legal a{font-size:13px;color:var(--ink-3);}
  .footer-legal a:hover{color:var(--brand);}

  /* ---------- Responsive ---------- */
  @media (min-width:768px){
    .shell{padding:0 24px;}
    .section{padding:80px 0;}
    .section-head h2{font-size:30px;}
    .page-head h1{font-size:38px;}
  }
  @media (min-width:1024px){
    .shell{padding:0 32px;}
    .section{padding:96px 0;}
    .page-head{padding:48px 0 60px;}
    .page-head h1{font-size:46px;letter-spacing:-.5px;}
    .section-head h2{font-size:32px;}
  }
  @media (max-width:1023px){
    .nav-links,.header-actions .search-box,.header-actions .btn-pill{display:none;}
    .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
    .page-head-grid{grid-template-columns:1fr;gap:28px;}
    .feature-row{grid-template-columns:1fr;gap:24px;}
    .feature-row.reverse .feature-media{order:1;}
    .feature-row.reverse .feature-body{order:2;}
    .cta-block{grid-template-columns:1fr;padding:32px;}
    .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:767px){
    .header-inner{height:64px;}
    .brand-text{font-size:16px;}
    .section{padding:52px 0;}
    .page-head{padding:28px 0 34px;}
    .page-head h1{font-size:30px;}
    .section-head h2{font-size:24px;}
    .feature-body h2{font-size:21px;}
    .feature-list{gap:40px;}
    .matrix-grid{grid-template-columns:1fr;}
    .stat-grid{grid-template-columns:1fr 1fr;gap:18px;}
    .stat-item strong{font-size:19px;}
    .cta-block{padding:24px;gap:26px;}
    .cta-block h2{font-size:23px;}
    .apply-card{padding:20px;}
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .faq-item summary{font-size:15px;padding:16px;}
    .faq-answer{padding:0 16px 18px 16px;}
  }