/* roulang page: index */
:root{
    --navy-900:#0e1f2e;
    --navy-800:#14293c;
    --navy-700:#1c3a52;
    --brand:#1f6f8b;
    --brand-dark:#155a72;
    --brand-soft:#e6f1f5;
    --gold:#c9a227;
    --gold-soft:#f6ecc9;
    --bg:#f6f8fa;
    --bg-alt:#eef3f7;
    --surface:#ffffff;
    --ink:#152a3a;
    --ink-soft:#4a6274;
    --muted:#7b8fa0;
    --line:#dfe7ee;
    --line-strong:#c8dae8;
    --radius:12px;
    --radius-sm:8px;
    --radius-lg:16px;
    --shadow-sm:0 1px 2px rgba(16,38,56,.06);
    --shadow:0 6px 18px rgba(16,38,56,.09);
    --shadow-lg:0 16px 36px rgba(16,38,56,.16);
    --container:1180px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    font-size:16px;
    line-height:1.78;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}

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

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(14,31,46,.98);
    border-bottom:1px solid rgba(255,255,255,.09);
    transition:box-shadow .22s ease, background .22s ease;
    backdrop-filter:saturate(140%) blur(6px);
  }
  .site-header.is-stuck{box-shadow:0 10px 26px rgba(8,22,34,.34);}
  .header-inner{display:flex;align-items:center;height:64px;gap:20px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:9px;
    background:linear-gradient(135deg,#2f93b1,#155a72);
    display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
    box-shadow:0 4px 12px rgba(31,111,139,.4);
  }
  .brand-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    padding:8px 13px;border-radius:6px;font-size:14.5px;
    color:rgba(255,255,255,.72);
    transition:color .18s,background .18s;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
  .nav-link.active{color:#fff;background:rgba(255,255,255,.11);}
  .nav-link.active::after{
    content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
    border-radius:2px;background:var(--gold);
  }
  .header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .nav-toggle{
    display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.22);
    background:transparent;border-radius:8px;align-items:center;justify-content:center;
    color:#fff;cursor:pointer;transition:background .18s,border-color .18s;
  }
  .nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.38);}
  .mobile-nav{display:none;padding:10px 24px 20px;border-top:1px solid rgba(255,255,255,.1);}
  .mobile-nav a{
    display:block;padding:12px 4px;color:rgba(255,255,255,.82);font-size:15px;
    border-bottom:1px solid rgba(255,255,255,.07);
  }
  .mobile-nav a:last-child{border-bottom:0;}
  .mobile-nav a:hover{color:#fff;}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  }
  .btn-sm{padding:8px 16px;font-size:14px;}
  .btn-block{width:100%;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 5px 14px rgba(31,111,139,.3);}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,139,.36);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{background:#fff;color:var(--brand-dark);border-color:var(--line-strong);}
  .btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.3);}
  .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);transform:translateY(-2px);}
  .btn-gold{background:var(--gold);color:#231a02;box-shadow:0 5px 14px rgba(201,162,39,.32);}
  .btn-gold:hover{background:#b8901e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,162,39,.38);}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;color:#fff;padding:52px 0 58px;}
  .hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/3bba771c99cdf922.webp') center/cover no-repeat;
    opacity:.28;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(112deg,rgba(9,24,38,.96) 0%,rgba(15,45,66,.86) 52%,rgba(22,60,84,.72) 100%);
  }
  .hero .container{position:relative;z-index:2;}
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    font-size:13px;font-weight:600;letter-spacing:.8px;color:#8fd0e3;
  }
  .eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--gold);}
  .hero h1{
    font-size:clamp(27px,3.4vw,40px);
    line-height:1.32;font-weight:800;letter-spacing:.4px;
    margin:14px 0 16px;color:#fff;
  }
  .hero h1 em{font-style:normal;color:#f0cf72;}
  .hero-lead{font-size:15.5px;line-height:1.85;color:rgba(232,242,248,.86);max-width:620px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .hero-tags li{
    padding:6px 14px;border-radius:999px;font-size:13px;
    background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
    color:rgba(238,247,252,.92);
  }

  .hero-panel{
    background:rgba(255,255,255,.97);
    border-radius:var(--radius-lg);
    border:1px solid rgba(255,255,255,.6);
    box-shadow:var(--shadow-lg);
    padding:22px 22px 20px;color:var(--ink);
  }
  .panel-head{
    display:flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.5px;
  }
  .panel-dot{width:8px;height:8px;border-radius:50%;background:#2fae74;box-shadow:0 0 0 3px rgba(47,174,116,.18);}
  .panel-version{
    display:flex;align-items:baseline;gap:10px;
    font-size:32px;font-weight:800;color:var(--navy-900);
    letter-spacing:.5px;margin:6px 0 4px;
  }
  .panel-version span{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:0;}
  .panel-rows{margin:14px 0 18px;border-top:1px solid var(--line);}
  .panel-rows li{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:10px 0;border-bottom:1px solid var(--line);font-size:13.5px;
  }
  .panel-rows li span{color:var(--muted);flex-shrink:0;}
  .panel-rows li b{color:var(--navy-800);font-weight:600;text-align:right;}
  .panel-note{margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center;}

  /* ---------- section basics ---------- */
  .section{padding:66px 0;}
  .section-tint{background:var(--bg-alt);}
  .section-white{background:var(--surface);}
  .section-dark{background:var(--navy-900);color:#fff;}
  .section-head{max-width:740px;margin-bottom:34px;}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .section-head.center .eyebrow{justify-content:center;}
  .section-title{
    font-size:clamp(22px,2.4vw,29px);line-height:1.38;font-weight:700;
    color:var(--navy-900);margin:12px 0 12px;letter-spacing:.3px;
  }
  .section-dark .section-title{color:#fff;}
  .section-desc{font-size:15.5px;color:var(--ink-soft);line-height:1.8;}
  .section-dark .section-desc{color:rgba(226,238,246,.78);}

  .grid{display:grid;gap:22px;}
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}

  /* ---------- cards ---------- */
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow-sm);padding:24px;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);}
  .card-title{font-size:17px;font-weight:700;color:var(--navy-900);margin-bottom:8px;line-height:1.5;}
  .card-text{font-size:14.5px;color:var(--ink-soft);line-height:1.78;}
  .icon-wrap{
    width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand-dark);margin-bottom:16px;
  }
  .icon-wrap svg{width:22px;height:22px;}
  .icon-gold{background:var(--gold-soft);color:#8a6d12;}

  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:3px 10px;border-radius:999px;font-size:12.5px;
    background:var(--brand-soft);color:var(--brand-dark);font-weight:600;
  }
  .chip-gold{background:var(--gold-soft);color:#7d6210;}

  /* ---------- icon strip ---------- */
  .icon-strip{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-sm);overflow:hidden;
  }
  .icon-strip li{
    padding:22px 20px;display:flex;align-items:flex-start;gap:12px;
    border-right:1px solid var(--line);
  }
  .icon-strip li:last-child{border-right:0;}
  .icon-strip .strip-ic{
    width:36px;height:36px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand-dark);
  }
  .icon-strip .strip-ic svg{width:18px;height:18px;}
  .icon-strip b{display:block;font-size:14.5px;color:var(--navy-900);font-weight:700;line-height:1.5;}
  .icon-strip small{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:2px;}

  /* ---------- platform ---------- */
  .platform-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
  .platform-card img{width:100%;height:168px;object-fit:cover;}
  .platform-body{padding:20px 22px 24px;}
  .platform-body h3{font-size:17px;font-weight:700;color:var(--navy-900);margin-bottom:6px;}
  .platform-body p{font-size:14px;color:var(--ink-soft);line-height:1.75;}
  .platform-meta{
    display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;
  }
  .platform-meta span{
    font-size:12px;color:var(--muted);padding:3px 9px;
    border:1px solid var(--line);border-radius:6px;background:#fbfcfd;
  }

  /* ---------- demo ---------- */
  .demo-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
  .demo-figure{
    border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow-lg);background:#fff;
  }
  .demo-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
  .demo-list li{
    display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
  }
  .demo-list li:last-child{border-bottom:0;}
  .demo-num{
    width:28px;height:28px;border-radius:8px;flex-shrink:0;
    display:grid;place-items:center;font-size:13px;font-weight:700;
    background:var(--navy-800);color:#fff;
  }
  .demo-list b{display:block;font-size:15px;color:var(--navy-900);font-weight:700;margin-bottom:3px;}
  .demo-list p{font-size:14px;color:var(--ink-soft);line-height:1.72;}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;counter-reset:step;}
  .step{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius);padding:28px 24px 24px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .step:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);}
  .step::before{
    counter-increment:step;content:"0" counter(step);
    position:absolute;top:18px;right:22px;
    font-size:30px;font-weight:800;color:#eaf1f6;letter-spacing:1px;
  }
  .step h3{font-size:16.5px;font-weight:700;color:var(--navy-900);margin-bottom:8px;}
  .step p{font-size:14.2px;color:var(--ink-soft);line-height:1.75;}

  /* ---------- progress ---------- */
  .progress-box{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:30px 30px 26px;box-shadow:var(--shadow-sm);
  }
  .progress-row{margin-bottom:20px;}
  .progress-row:last-child{margin-bottom:0;}
  .progress-label{display:flex;justify-content:space-between;align-items:center;font-size:14.5px;margin-bottom:8px;}
  .progress-label span{color:var(--ink-soft);}
  .progress-label b{color:var(--brand-dark);font-weight:700;font-size:13.5px;}
  .progress-track{height:9px;border-radius:999px;background:#e8eff4;overflow:hidden;}
  .progress-track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2f93b1,#155a72);}
  .progress-track i.gold{background:linear-gradient(90deg,#e0be4b,#b8901e);}

  .level-list li{
    display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);
  }
  .level-list li:last-child{border-bottom:0;}
  .level-badge{
    width:60px;flex-shrink:0;text-align:center;font-size:12.5px;font-weight:700;
    padding:5px 0;border-radius:6px;background:var(--brand-soft);color:var(--brand-dark);
  }
  .level-badge.gold{background:var(--gold-soft);color:#7d6210;}
  .level-list b{font-size:14.5px;color:var(--navy-900);display:block;font-weight:700;}
  .level-list small{font-size:13px;color:var(--muted);line-height:1.6;}

  /* ---------- stats ---------- */
  .stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
  .stat{
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
    border-radius:var(--radius);padding:22px 20px;text-align:center;
    transition:background .2s ease,border-color .2s ease,transform .2s ease;
  }
  .stat:hover{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.28);transform:translateY(-3px);}
  .stat b{display:block;font-size:28px;font-weight:800;color:#f4d47c;letter-spacing:.5px;line-height:1.2;}
  .stat span{display:block;font-size:13px;color:rgba(224,238,246,.8);margin-top:6px;}

  /* ---------- reviews ---------- */
  .quote{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow-sm);position:relative;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .quote:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);}
  .quote::before{
    content:"“";position:absolute;top:6px;right:20px;
    font-size:56px;line-height:1;color:#e7eff5;font-family:Georgia,serif;
  }
  .quote p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;position:relative;z-index:1;}
  .quote-foot{display:flex;align-items:center;gap:10px;margin-top:16px;}
  .avatar{
    width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
    background:var(--brand-soft);color:var(--brand-dark);font-weight:700;font-size:14px;flex-shrink:0;
  }
  .quote-foot b{font-size:13.5px;color:var(--navy-900);display:block;font-weight:700;line-height:1.4;}
  .quote-foot small{font-size:12px;color:var(--muted);}

  /* ---------- safety ---------- */
  .safety-list li{
    display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
  }
  .safety-list li:last-child{border-bottom:0;}
  .safety-ic{
    width:36px;height:36px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;
    background:#eaf6ef;color:#1f8a56;
  }
  .safety-ic svg{width:18px;height:18px;}
  .safety-list b{display:block;font-size:15px;color:var(--navy-900);font-weight:700;margin-bottom:3px;}
  .safety-list p{font-size:14px;color:var(--ink-soft);line-height:1.72;}

  /* ---------- timeline ---------- */
  .timeline{position:relative;padding-left:26px;}
  .timeline::before{
    content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
    background:linear-gradient(180deg,#cfe0ea,#eef3f7);border-radius:2px;
  }
  .timeline li{position:relative;padding-bottom:26px;}
  .timeline li:last-child{padding-bottom:0;}
  .timeline li::before{
    content:"";position:absolute;left:-26px;top:7px;width:12px;height:12px;border-radius:50%;
    background:#fff;border:3px solid var(--brand);
  }
  .timeline li.gold::before{border-color:var(--gold);}
  .tl-date{font-size:12.5px;color:var(--muted);letter-spacing:.4px;}
  .tl-title{font-size:15.5px;font-weight:700;color:var(--navy-900);margin:3px 0 4px;}
  .tl-text{font-size:14px;color:var(--ink-soft);line-height:1.75;}

  /* ---------- channel cards ---------- */
  .channel-card{
    display:flex;flex-direction:column;justify-content:space-between;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 24px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand);}
  .channel-card h3{font-size:17.5px;font-weight:700;color:var(--navy-900);margin:12px 0 8px;}
  .channel-card p{font-size:14.2px;color:var(--ink-soft);line-height:1.78;}
  .channel-more{
    display:inline-flex;align-items:center;gap:6px;margin-top:18px;
    font-size:14px;font-weight:600;color:var(--brand-dark);
  }
  .channel-more svg{width:15px;height:15px;transition:transform .2s ease;}
  .channel-card:hover .channel-more svg{transform:translateX(4px);}

  /* ---------- news ---------- */
  .news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:30px;align-items:start;}
  .news-list{display:flex;flex-direction:column;}
  .news-item{
    display:block;padding:20px 22px;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;
    box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--line-strong);}
  .news-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
  .news-date{font-size:12.5px;color:var(--muted);}
  .news-title{font-size:16.5px;font-weight:700;color:var(--navy-900);line-height:1.55;margin-bottom:6px;}
  .news-summary{font-size:14px;color:var(--ink-soft);line-height:1.75;}
  .news-empty{
    padding:32px;border:1px dashed var(--line-strong);border-radius:var(--radius);
    background:var(--surface);color:var(--muted);font-size:14.5px;text-align:center;
  }
  .news-side{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow-sm);position:sticky;top:84px;
  }
  .news-side h3{font-size:16px;font-weight:700;color:var(--navy-900);margin-bottom:6px;}
  .news-side .side-sub{font-size:13px;color:var(--muted);margin-bottom:16px;}
  .side-item{display:block;padding:13px 0;border-top:1px solid var(--line);}
  .side-item:hover .side-title{color:var(--brand-dark);}
  .side-title{font-size:14.2px;font-weight:600;color:var(--navy-800);line-height:1.55;transition:color .18s;}
  .side-meta{font-size:12px;color:var(--muted);margin-top:4px;}

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--radius-lg);
    background:linear-gradient(118deg,#0f2637 0%,#184058 60%,#1d4d69 100%);
    color:#fff;padding:44px 44px;display:grid;grid-template-columns:1.4fr .6fr;
    gap:30px;align-items:center;box-shadow:var(--shadow-lg);
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(201,162,39,.28),transparent 68%);
  }
  .cta-band h2{font-size:clamp(21px,2.2vw,27px);font-weight:800;line-height:1.4;margin-bottom:12px;position:relative;z-index:1;}
  .cta-band p{font-size:14.8px;color:rgba(228,240,247,.84);line-height:1.8;position:relative;z-index:1;max-width:620px;}
  .cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1;}

  /* ---------- footer ---------- */
  .site-footer{background:var(--navy-900);color:rgba(222,236,244,.78);padding:52px 0 0;margin-top:0;}
  .footer-top{border-top:1px solid rgba(255,255,255,.1);padding-top:44px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-text{font-size:16.5px;}
  .footer-about{font-size:13.8px;line-height:1.85;color:rgba(210,227,238,.68);max-width:360px;}
  .footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.4px;}
  .footer-col li{margin-bottom:9px;}
  .footer-col a{font-size:13.8px;color:rgba(212,229,240,.72);transition:color .18s;}
  .footer-col a:hover{color:#f0cf72;}
  .footer-bottom{
    margin-top:40px;padding:18px 0 24px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:12.8px;color:rgba(190,212,226,.6);
  }

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .hero-panel{max-width:520px;}
    .demo-grid{grid-template-columns:1fr;gap:28px;}
    .news-layout{grid-template-columns:1fr;}
    .news-side{position:static;}
    .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
    .icon-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
    .icon-strip li:nth-child(2){border-right:0;}
    .icon-strip li:nth-child(1),.icon-strip li:nth-child(2){border-bottom:1px solid var(--line);}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-band{grid-template-columns:1fr;padding:36px 30px;}
    .cta-actions{flex-direction:row;flex-wrap:wrap;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .footer-about{max-width:none;}
  }
  @media (max-width:960px){
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;}
    .mobile-nav.show{display:block;}
  }
  @media (max-width:768px){
    .section{padding:52px 0;}
    .grid-3,.grid-2{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .hero{padding:40px 0 46px;}
    .hero-lead{font-size:15px;}
    .header-inner{gap:12px;}
    .brand-text{font-size:15.5px;}
    .header-actions .btn{display:none;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
  }
  @media (max-width:520px){
    .container{padding:0 18px;}
    .grid-4{grid-template-columns:1fr;}
    .icon-strip{grid-template-columns:1fr;}
    .icon-strip li{border-right:0;border-bottom:1px solid var(--line);}
    .icon-strip li:last-child{border-bottom:0;}
    .stat-grid{grid-template-columns:1fr 1fr;}
    .cta-band{padding:30px 22px;}
    .cta-actions{flex-direction:column;}
    .hero-tags li{font-size:12.5px;}
    .news-item{padding:16px 16px;}
    .section-title{font-size:21px;}
  }

/* roulang page: category1 */
:root{
  --navy-900:#0e1f2e;
  --navy-800:#14293c;
  --navy-700:#1c3a52;
  --brand:#1f6f8b;
  --brand-dark:#155a72;
  --brand-soft:#e6f1f5;
  --gold:#c9a227;
  --gold-soft:#f6ecc9;
  --bg:#f6f8fa;
  --bg-alt:#eef3f7;
  --surface:#ffffff;
  --ink:#152a3a;
  --ink-soft:#4a6274;
  --muted:#7b8fa0;
  --line:#dfe7ee;
  --line-strong:#c8dae8;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --shadow-sm:0 1px 2px rgba(16,38,56,.06);
  --shadow:0 6px 18px rgba(16,38,56,.09);
  --shadow-lg:0 16px 36px rgba(16,38,56,.16);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.78;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,form{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
strong{font-weight:700;color:var(--navy-900);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
:focus-visible{outline:3px solid rgba(31,111,139,.45);outline-offset:2px;border-radius:4px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,31,46,.98);
  border-bottom:1px solid rgba(255,255,255,.09);
  backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(8,22,34,.34);}
.header-inner{display:flex;align-items:center;height:64px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,#2f93b1,#155a72);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 4px 12px rgba(31,111,139,.4);
}
.brand-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:6px;font-size:14.5px;
  color:rgba(255,255,255,.72);
  transition:color .18s,background .18s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-link.active{color:#fff;background:rgba(255,255,255,.11);}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--gold);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.22);
  background:transparent;border-radius:8px;align-items:center;justify-content:center;
  color:#fff;cursor:pointer;transition:background .18s,border-color .18s;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.38);}
.mobile-nav{display:none;padding:10px 24px 20px;border-top:1px solid rgba(255,255,255,.1);}
.mobile-nav.open{display:block;}
.mobile-nav a{
  display:block;padding:12px 4px;color:rgba(255,255,255,.82);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a:hover{color:#fff;}
.mobile-nav .m-cta{
  display:inline-flex;margin-top:14px;padding:10px 18px;border-radius:var(--radius-sm);
  background:var(--gold);color:#231a02;font-weight:700;border-bottom:0;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 5px 14px rgba(31,111,139,.3);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,139,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:var(--line-strong);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-gold{background:var(--gold);color:#231a02;box-shadow:0 5px 14px rgba(201,162,39,.32);}
.btn-gold:hover{background:#b8901e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,162,39,.38);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);transform:translateY(-2px);}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;color:#fff;padding:56px 0 62px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/f728aff03b3e0539.webp') center/cover no-repeat;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(9,24,38,.96) 0%,rgba(15,45,66,.88) 54%,rgba(22,60,84,.74) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.8px;color:#8fd0e3;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--gold);}
.page-hero h1{
  font-size:clamp(26px,3.3vw,38px);line-height:1.34;font-weight:800;
  letter-spacing:.4px;margin:14px 0 16px;color:#fff;
}
.page-hero h1 em{font-style:normal;color:#f0cf72;}
.hero-lead{font-size:15.5px;line-height:1.85;color:rgba(232,242,248,.86);max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  color:rgba(238,247,252,.92);
}
.pack-card{
  background:rgba(255,255,255,.98);border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-lg);
  padding:26px 24px 22px;color:var(--ink);
}
.pack-card h2{font-size:17.5px;font-weight:800;color:var(--navy-900);letter-spacing:.2px;}
.pack-card .pack-desc{font-size:13.8px;color:var(--ink-soft);margin-top:8px;line-height:1.75;}
.match-form{margin-top:18px;}
.match-form label{display:block;font-size:13px;font-weight:700;color:var(--navy-800);margin:14px 0 6px;}
.match-form select,.match-form input{
  width:100%;padding:11px 13px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  background:#fbfdfe;font-size:14.5px;color:var(--ink);min-height:44px;
  transition:border-color .18s,box-shadow .18s,background .18s;
}
.match-form select:focus,.match-form input:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(31,111,139,.14);
}
.match-form .btn{margin-top:18px;}
.form-note{
  margin-top:12px;font-size:13px;color:var(--brand-dark);background:var(--brand-soft);
  border-radius:var(--radius-sm);padding:10px 12px;line-height:1.7;
}

/* ---------- section ---------- */
.section{padding:62px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:780px;margin-bottom:34px;}
.section-title{
  font-size:clamp(21px,2.5vw,27px);font-weight:800;color:var(--navy-900);
  letter-spacing:.3px;display:flex;align-items:center;gap:12px;line-height:1.45;
}
.section-title::before{
  content:"";width:6px;height:24px;border-radius:3px;flex-shrink:0;
  background:linear-gradient(180deg,var(--brand),var(--gold));
}
.section-sub{margin-top:10px;color:var(--ink-soft);font-size:15px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}

/* ---------- cards ---------- */
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.info-card h3{font-size:17px;font-weight:700;color:var(--navy-900);margin-bottom:8px;line-height:1.5;}
.info-card p{font-size:14.6px;color:var(--ink-soft);line-height:1.8;}
.icon-box{
  width:44px;height:44px;border-radius:11px;background:var(--brand-soft);
  color:var(--brand-dark);display:grid;place-items:center;margin-bottom:16px;
}
.icon-box svg{width:22px;height:22px;}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark);
}
.tag-gold{background:var(--gold-soft);color:#7a5f08;}
.tag-line{background:transparent;border:1px solid var(--line-strong);color:var(--ink-soft);}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 0;font-size:14px;color:var(--ink-soft);
  border-top:1px dashed var(--line);
}
.spec-row:first-of-type{margin-top:16px;}
.spec-row b{color:var(--navy-900);font-weight:700;}

/* ---------- media cards ---------- */
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.media-body{padding:20px 22px 22px;}
.media-body h3{font-size:16.5px;font-weight:700;color:var(--navy-900);margin-bottom:8px;}
.media-body p{font-size:14.4px;color:var(--ink-soft);line-height:1.8;}

/* ---------- checklist split ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center;}
.split img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;}
.check-list{margin-top:22px;display:grid;gap:14px;}
.check-list li{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:16px 18px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.check-list li:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.check-index{
  flex-shrink:0;width:28px;height:28px;border-radius:8px;background:var(--navy-800);
  color:#fff;font-size:13px;font-weight:700;display:grid;place-items:center;
}
.check-list h3{font-size:15.2px;font-weight:700;color:var(--navy-900);margin-bottom:4px;}
.check-list p{font-size:14px;color:var(--ink-soft);line-height:1.75;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;background:var(--brand-soft);
  color:var(--brand-dark);font-weight:800;font-size:15px;margin-bottom:14px;
}
.step h3{font-size:16.5px;font-weight:700;color:var(--navy-900);margin-bottom:8px;}
.step p{font-size:14.4px;color:var(--ink-soft);line-height:1.8;}
.step-meta{margin-top:14px;font-size:12.8px;color:var(--muted);}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow-sm);
}
.spec-table{width:100%;border-collapse:collapse;min-width:680px;font-size:14.5px;}
.spec-table thead th{
  background:#f2f7fa;color:var(--navy-900);font-weight:700;text-align:left;
  padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec-table td{
  padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-soft);vertical-align:top;
}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:hover{background:#f7fbfd;}
.spec-table td:first-child{color:var(--navy-900);font-weight:600;}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-left:6px;padding-left:26px;border-left:2px solid var(--line-strong);}
.timeline li{position:relative;padding-bottom:24px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-34px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);
}
.timeline h3{font-size:15.6px;font-weight:700;color:var(--navy-900);display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.timeline p{font-size:14.2px;color:var(--ink-soft);margin-top:5px;line-height:1.8;}
.ver{
  font-size:12.5px;font-weight:700;color:var(--brand-dark);background:var(--brand-soft);
  border-radius:999px;padding:2px 10px;
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow);}
.faq-item summary{
  cursor:pointer;padding:16px 20px;font-weight:700;font-size:15.2px;color:var(--navy-900);
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color .18s,background .18s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--brand);font-weight:800;font-size:18px;line-height:1;}
.faq-item[open] summary::after{content:"–";}
.faq-item summary:hover{background:#f7fbfd;}
.faq-item p{padding:0 20px 18px;font-size:14.3px;color:var(--ink-soft);line-height:1.82;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
  display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.news-card h3{font-size:16px;font-weight:700;color:var(--navy-900);line-height:1.6;}
.news-card p{font-size:14px;color:var(--ink-soft);line-height:1.78;}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:12.6px;color:var(--muted);margin-top:auto;padding-top:6px;}
.empty-note{
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius);
  padding:28px 24px;color:var(--ink-soft);font-size:14.6px;text-align:center;
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;border-radius:var(--radius-lg);
  padding:40px 42px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:linear-gradient(118deg,var(--navy-900) 0%,var(--navy-700) 62%,#1d5570 100%);
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(20px,2.4vw,25px);font-weight:800;letter-spacing:.3px;line-height:1.5;}
.cta-band p{margin-top:10px;font-size:14.6px;color:rgba(226,240,248,.86);line-height:1.8;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:rgba(226,238,246,.78);margin-top:0;}
.footer-top{padding:52px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:38px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;font-size:14px;}
.brand-text-sm{color:#fff;font-size:16.5px;font-weight:700;letter-spacing:.3px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(206,224,236,.74);max-width:420px;}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;
  padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;color:rgba(206,224,236,.74);transition:color .18s,transform .18s;
  display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(180,203,218,.66);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .grid-3,.grid-4,.news-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px;}
}
@media (max-width:768px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:12px;}
  .brand-text{font-size:15.5px;}
  .header-actions .btn{display:none;}
  .section{padding:46px 0;}
  .page-hero{padding:40px 0 46px;}
  .grid-3,.grid-4,.grid-2,.news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:30px;}
  .footer-top{padding-top:40px;}
  .hero-tags li{font-size:12.4px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:23px;}
  .hero-lead{font-size:14.6px;}
  .pack-card{padding:20px 18px;}
  .info-card,.news-card{padding:20px 18px;}
  .cta-band{padding:28px 20px;border-radius:var(--radius);}
  .btn{padding:11px 18px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
  --navy-900:#0e1f2e;
  --navy-800:#14293c;
  --navy-700:#1c3a52;
  --brand:#1f6f8b;
  --brand-dark:#155a72;
  --brand-soft:#e6f1f5;
  --gold:#c9a227;
  --gold-soft:#f6ecc9;
  --bg:#f6f8fa;
  --bg-alt:#eef3f7;
  --surface:#ffffff;
  --ink:#152a3a;
  --ink-soft:#4a6274;
  --muted:#7b8fa0;
  --line:#dfe7ee;
  --line-strong:#c8dae8;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --shadow-sm:0 1px 2px rgba(16,38,56,.06);
  --shadow:0 6px 18px rgba(16,38,56,.09);
  --shadow-lg:0 16px 36px rgba(16,38,56,.16);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,31,46,.98);
  border-bottom:1px solid rgba(255,255,255,.09);
  transition:box-shadow .22s ease, background .22s ease;
  backdrop-filter:saturate(140%) blur(6px);
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(8,22,34,.34);}
.header-inner{display:flex;align-items:center;height:64px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,#2f93b1,#155a72);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 4px 12px rgba(31,111,139,.4);
}
.brand-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:6px;font-size:14.5px;
  color:rgba(255,255,255,.72);
  transition:color .18s,background .18s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-link.active{color:#fff;background:rgba(255,255,255,.11);}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--gold);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.22);
  background:transparent;border-radius:8px;align-items:center;justify-content:center;
  color:#fff;cursor:pointer;transition:background .18s,border-color .18s;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.38);}
.mobile-nav{display:none;padding:10px 24px 20px;border-top:1px solid rgba(255,255,255,.1);}
.mobile-nav a{
  display:block;padding:12px 4px;color:rgba(255,255,255,.82);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a:hover{color:#fff;}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 5px 14px rgba(31,111,139,.3);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,139,.36);}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:var(--line-strong);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.52);transform:translateY(-2px);}
.btn-gold{background:var(--gold);color:#231a02;box-shadow:0 5px 14px rgba(201,162,39,.32);}
.btn-gold:hover{background:#b8901e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,162,39,.38);}
/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;padding:42px 0 70px;
  background:linear-gradient(112deg,rgba(9,24,38,.97) 0%,rgba(15,45,66,.9) 55%,rgba(22,60,84,.82) 100%);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/6fbcfaf0f1d64f40.webp') center/cover no-repeat;
  opacity:.2;
}
.article-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:900px;}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.6);}
.crumbs a{color:rgba(255,255,255,.72);transition:color .18s;}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{color:rgba(255,255,255,.34);}
.article-title{
  font-size:clamp(24px,3vw,37px);line-height:1.4;font-weight:800;letter-spacing:.3px;
  color:#fff;margin:16px 0 16px;
}
.article-lead{font-size:15.5px;line-height:1.9;color:rgba(230,242,248,.85);max-width:820px;}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  color:rgba(238,247,252,.92);
}
/* ---------- figure ---------- */
.article-figure{margin:-46px auto 0;max-width:960px;position:relative;z-index:5;}
.article-figure img{
  width:100%;aspect-ratio:16/7;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
}
.article-figure figcaption{
  margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center;
}
/* ---------- sections ---------- */
.section{padding:56px 0;}
.section-alt{background:var(--bg-alt);}
.section-tight{padding-top:44px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px;}
.sec-title{
  position:relative;padding-left:14px;
  font-size:clamp(20px,2.2vw,26px);font-weight:800;color:var(--navy-800);line-height:1.45;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:3px;background:var(--brand);
}
.sec-sub{font-size:14.5px;color:var(--ink-soft);max-width:600px;line-height:1.8;}
/* ---------- quick facts ---------- */
.quickfacts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:920px;margin:0 auto 34px;}
.quickfact{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow-sm);
}
.quickfact span{display:block;font-size:12.5px;color:var(--muted);letter-spacing:.5px;}
.quickfact strong{display:block;font-size:16px;font-weight:700;color:var(--ink);margin-top:4px;}
/* ---------- article content ---------- */
.article-content{
  max-width:860px;margin:0 auto;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 42px;box-shadow:var(--shadow);
}
.article-content h2{
  font-size:21px;font-weight:800;color:var(--navy-800);line-height:1.5;
  margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--brand);
}
.article-content h2:first-child{margin-top:0;}
.article-content h3{font-size:17.5px;font-weight:700;color:var(--navy-800);margin:26px 0 10px;}
.article-content p{font-size:15.5px;line-height:1.9;color:#2b4356;margin:0 0 18px;}
.article-content ul,.article-content ol{list-style:disc;padding-left:22px;margin:0 0 18px;}
.article-content ol{list-style:decimal;}
.article-content li{font-size:15.5px;line-height:1.85;color:#2b4356;margin-bottom:8px;}
.article-content strong{color:var(--navy-800);}
.article-content a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--brand);}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;background:var(--gold-soft);
  border-left:4px solid var(--gold);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#5d4a0d;font-size:15px;line-height:1.85;
}
.article-content blockquote p{margin:0;color:#5d4a0d;}
.article-content img{border-radius:var(--radius);margin:22px 0;box-shadow:var(--shadow-sm);}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-content th{background:var(--brand-soft);color:var(--navy-800);font-weight:700;}
.empty-state{text-align:center;padding:56px 16px;}
.empty-state h2{font-size:20px;font-weight:800;color:var(--navy-800);margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-soft);margin-bottom:22px;}
/* ---------- pull quote ---------- */
.pullquote{position:relative;overflow:hidden;background:var(--navy-800);padding:60px 0;color:#fff;}
.pullquote::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/77a7b165d87f2d3d.webp') center/cover no-repeat;opacity:.14;
}
.pullquote blockquote{position:relative;z-index:2;max-width:860px;margin:0 auto;text-align:center;}
.pullquote p{
  font-size:clamp(18px,2.2vw,25px);line-height:1.75;font-weight:650;color:#fff;letter-spacing:.3px;
}
.pullquote cite{display:block;margin-top:18px;font-style:normal;font-size:13.5px;color:#9cc2d6;letter-spacing:.6px;}
/* ---------- cards ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.card-icon{
  width:42px;height:42px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.info-card h3{font-size:16.5px;font-weight:700;color:var(--navy-800);margin-bottom:9px;}
.info-card p{font-size:14px;line-height:1.82;color:var(--ink-soft);}
.tag{
  display:inline-block;margin-top:16px;padding:3px 11px;border-radius:999px;
  font-size:12px;background:var(--brand-soft);color:var(--brand-dark);font-weight:600;
}
/* ---------- table ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow-sm);background:var(--surface);border:1px solid var(--line);}
.dl-table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px;}
.dl-table th{background:var(--navy-800);color:#fff;font-weight:600;text-align:left;padding:14px 18px;font-size:14px;white-space:nowrap;}
.dl-table td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-soft);line-height:1.7;}
.dl-table tr:last-child td{border-bottom:0;}
.dl-table tbody tr{transition:background .18s ease;}
.dl-table tbody tr:hover{background:#f2f8fb;}
.dl-table td strong{color:var(--navy-800);}
.table-note{margin-top:14px;font-size:13px;color:var(--muted);}
/* ---------- channels ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-link{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-link:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand);}
.channel-link h3{font-size:16.5px;font-weight:700;color:var(--navy-800);margin-bottom:8px;}
.channel-link p{font-size:14px;line-height:1.8;color:var(--ink-soft);}
.channel-link .arrow{
  margin-top:auto;padding-top:16px;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--brand-dark);
}
.channel-link:hover .arrow{color:var(--brand);}
/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow);}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;font-size:15.5px;font-weight:600;color:var(--navy-800);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--brand);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 20px 18px;font-size:14.5px;line-height:1.85;color:var(--ink-soft);}
/* ---------- final cta ---------- */
.final-cta{position:relative;overflow:hidden;padding:56px 0;background:linear-gradient(115deg,var(--navy-900),var(--navy-700));color:#fff;}
.final-cta::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/8a1ad88776c3c22d.webp') center/cover no-repeat;opacity:.12;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.4vw,27px);font-weight:800;color:#fff;margin-bottom:10px;line-height:1.5;}
.cta-inner p{font-size:14.5px;line-height:1.85;color:rgba(226,240,248,.82);max-width:580px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:rgba(255,255,255,.7);padding-top:52px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:430px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 16px;letter-spacing:.4px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.64);transition:color .18s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.46);
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .cards-3,.channel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-content{padding:32px 30px;}
}
@media (max-width:768px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;gap:12px;}
  .article-hero{padding:32px 0 62px;}
  .article-figure{margin-top:-40px;}
  .article-figure img{aspect-ratio:16/9;}
  .quickfacts{grid-template-columns:1fr;gap:12px;}
  .cards-3,.channel-grid{grid-template-columns:1fr;}
  .article-content{padding:24px 20px;border-radius:var(--radius);}
  .article-content h2{font-size:19px;}
  .section{padding:44px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .header-actions .btn{display:none;}
  .article-title{font-size:23px;}
  .article-lead{font-size:14.5px;}
  .footer-bottom{font-size:12px;}
}

/* roulang page: category3 */
:root{
  --navy-900:#0e1f2e;
  --navy-800:#14293c;
  --navy-700:#1c3a52;
  --brand:#1f6f8b;
  --brand-dark:#155a72;
  --brand-soft:#e6f1f5;
  --gold:#c9a227;
  --gold-soft:#f6ecc9;
  --bg:#f6f8fa;
  --bg-alt:#eef3f7;
  --surface:#ffffff;
  --ink:#152a3a;
  --ink-soft:#4a6274;
  --muted:#7b8fa0;
  --line:#dfe7ee;
  --line-strong:#c8dae8;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --shadow-sm:0 1px 2px rgba(16,38,56,.06);
  --shadow:0 6px 18px rgba(16,38,56,.09);
  --shadow-lg:0 16px 36px rgba(16,38,56,.16);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
html body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{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(--brand);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,31,46,.98);
  border-bottom:1px solid rgba(255,255,255,.09);
  transition:box-shadow .22s ease,background .22s ease;
  backdrop-filter:saturate(140%) blur(6px);
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(8,22,34,.34);}
.header-inner{display:flex;align-items:center;height:64px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,#2f93b1,#155a72);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 4px 12px rgba(31,111,139,.4);
}
.brand-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:6px;font-size:14.5px;
  color:rgba(255,255,255,.72);
  transition:color .18s,background .18s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-link.active{color:#fff;background:rgba(255,255,255,.11);}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--gold);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.22);
  background:transparent;border-radius:8px;align-items:center;justify-content:center;
  color:#fff;cursor:pointer;transition:background .18s,border-color .18s;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.38);}
.mobile-nav{display:none;padding:10px 24px 20px;border-top:1px solid rgba(255,255,255,.1);}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;padding:12px 4px;color:rgba(255,255,255,.82);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a:hover,.mobile-nav a.active{color:#fff;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 5px 14px rgba(31,111,139,.3);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,139,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:var(--line-strong);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.52);transform:translateY(-2px);}
.btn-gold{background:var(--gold);color:#231a02;box-shadow:0 5px 14px rgba(201,162,39,.32);}
.btn-gold:hover{background:#b8901e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,162,39,.38);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;padding:54px 0 60px;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/f728aff03b3e0539.webp') center/cover no-repeat;
  opacity:.3;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(9,24,38,.96) 0%,rgba(15,45,66,.88) 52%,rgba(22,60,84,.74) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.8px;color:#8fd0e3;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--gold);}
.hero h1{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.34;font-weight:800;letter-spacing:.3px;
  margin:14px 0 16px;color:#fff;
}
.hero h1 em{font-style:normal;color:#f0cf72;}
.hero-lead{font-size:15.5px;line-height:1.85;color:rgba(232,242,248,.86);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  color:rgba(238,247,252,.92);
}

/* before / after 对比面板 */
.compare-panel{
  display:grid;grid-template-columns:1fr 34px 1fr;align-items:stretch;gap:0;
  background:rgba(255,255,255,.97);
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.65);
  box-shadow:var(--shadow-lg);
  padding:20px;color:var(--ink);
}
.compare-col{padding:14px 12px;border-radius:var(--radius);}
.compare-before{background:#f4f6f8;border:1px solid #e2e8ee;}
.compare-after{background:var(--brand-soft);border:1px solid #c9e2ec;}
.compare-label{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;letter-spacing:.5px;
  padding:3px 10px;border-radius:999px;margin-bottom:12px;
}
.compare-before .compare-label{background:#dfe6ec;color:#5b7083;}
.compare-after .compare-label{background:#cfe6ef;color:var(--brand-dark);}
.compare-col li{
  position:relative;padding-left:16px;font-size:13.5px;line-height:1.7;
  color:var(--ink-soft);margin-bottom:9px;
}
.compare-col li:last-child{margin-bottom:0;}
.compare-col li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
}
.compare-before li::before{background:#a8b8c4;}
.compare-after li::before{background:var(--brand);}
.compare-arrow{
  display:grid;place-items:center;color:var(--brand);font-size:20px;font-weight:700;
}

/* ---------- section framework ---------- */
.section{padding:64px 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--navy-800);color:#fff;}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--brand);
  text-transform:uppercase;margin-bottom:10px;
}
.kicker::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--gold);}
.section-dark .kicker{color:#8fd0e3;}
.section-title{
  font-size:clamp(21px,2.4vw,28px);font-weight:800;line-height:1.42;letter-spacing:.2px;color:var(--navy-900);
}
.section-dark .section-title{color:#fff;}
.section-sub{margin-top:12px;font-size:15px;line-height:1.85;color:var(--ink-soft);}
.section-dark .section-sub{color:rgba(226,238,246,.82);}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:22px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:24px 22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.card-icon{
  width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);margin-bottom:16px;
}
.card-title{font-size:17px;font-weight:700;color:var(--navy-900);line-height:1.5;margin-bottom:8px;}
.card-text{font-size:14.5px;line-height:1.8;color:var(--ink-soft);}
.card-num{
  font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1px;margin-bottom:10px;
}
.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);
}
.tag-gold{background:var(--gold-soft);color:#7a6110;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ---------- 决策对照 ---------- */
.decision-list{display:grid;gap:16px;}
.decision-item{
  display:grid;grid-template-columns:132px 1fr 1fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.decision-item:hover{box-shadow:var(--shadow);border-color:var(--line-strong);transform:translateY(-3px);}
.decision-stage{
  background:var(--navy-800);color:#fff;padding:20px 18px;
  display:flex;flex-direction:column;justify-content:center;gap:6px;
}
.decision-stage strong{font-size:16px;font-weight:700;}
.decision-stage span{font-size:12.5px;color:rgba(226,238,246,.72);letter-spacing:.5px;}
.decision-cell{padding:18px 20px;font-size:14px;line-height:1.78;color:var(--ink-soft);}
.decision-cell.wrong{border-right:1px solid var(--line);background:#fbfcfd;}
.decision-cell.wrong b{display:block;font-size:12.5px;color:#a2564c;letter-spacing:.5px;margin-bottom:6px;}
.decision-cell.right b{display:block;font-size:12.5px;color:var(--brand-dark);letter-spacing:.5px;margin-bottom:6px;}

/* ---------- 场景卡 ---------- */
.scene-card{padding:0;overflow:hidden;}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.scene-card:hover .scene-thumb img{transform:scale(1.045);}
.scene-body{padding:20px 22px 24px;}
.scene-body .card-title{margin-top:2px;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.step-badge{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:var(--navy-800);color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;
}
.step h3{font-size:16.5px;font-weight:700;color:var(--navy-900);margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

/* ---------- 案例图文 ---------- */
.case-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:40px;align-items:center;}
.case-figure{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);
  border:1px solid var(--line);background:#fff;
}
.case-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.case-list{margin-top:22px;display:grid;gap:14px;}
.case-list li{
  display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:start;
  padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}
.case-list strong{
  font-size:12.5px;font-weight:700;color:var(--brand-dark);letter-spacing:.5px;
  background:var(--brand-soft);border-radius:6px;padding:4px 8px;text-align:center;
}
.case-list span{font-size:14px;line-height:1.78;color:var(--ink-soft);}

/* ---------- 评价 ---------- */
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.quote p{font-size:14.5px;line-height:1.85;color:var(--ink-soft);}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:18px;}
.avatar{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:var(--navy-800);color:#fff;font-size:13px;font-weight:700;flex-shrink:0;
}
.quote-meta strong{display:block;font-size:14px;color:var(--navy-900);line-height:1.4;}
.quote-meta em{font-style:normal;font-size:12.5px;color:var(--muted);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.news-body .card-title{font-size:16px;margin:10px 0 8px;}
.news-body .card-title a:hover{color:var(--brand);}
.news-meta{margin-top:auto;padding-top:14px;font-size:12.5px;color:var(--muted);letter-spacing:.3px;}
.empty-tip{
  padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  background:#fff;color:var(--ink-soft);font-size:14.5px;text-align:center;
}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq details{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--shadow);}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;
  font-size:15.5px;font-weight:700;color:var(--navy-900);line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"";position:absolute;right:22px;top:24px;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);top:28px;}
.faq .faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--ink-soft);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,var(--navy-900),var(--navy-700) 62%,#24607c);
  color:#fff;padding:44px 40px;
  display:grid;grid-template-columns:1.4fr auto;gap:28px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(201,162,39,.16);
}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);font-weight:800;line-height:1.45;position:relative;}
.cta-band p{margin-top:10px;font-size:14.5px;line-height:1.85;color:rgba(228,240,247,.86);max-width:620px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:rgba(220,233,241,.78);padding:52px 0 24px;margin-top:0;}
.footer-top{border-top:1px solid rgba(255,255,255,.1);padding-top:40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(206,222,232,.72);max-width:420px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;letter-spacing:.5px;
  margin:0 0 14px;
}
.footer-col li{margin-bottom:9px;}
.footer-col a{
  font-size:14px;color:rgba(206,222,232,.76);
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(186,206,220,.66);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .compare-panel{max-width:640px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;gap:28px;}
  .decision-item{grid-template-columns:112px 1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:34px 28px;}
}
@media (max-width:860px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .header-inner{justify-content:space-between;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .hero{padding:40px 0 46px;}
  .section{padding:48px 0;}
  .compare-panel{grid-template-columns:1fr;gap:12px;padding:16px;}
  .compare-arrow{transform:rotate(90deg);height:26px;}
  .grid-2,.grid-3,.grid-4,.news-grid{grid-template-columns:1fr;}
  .decision-item{grid-template-columns:1fr;}
  .decision-stage{flex-direction:row;align-items:center;justify-content:flex-start;gap:12px;padding:14px 18px;}
  .decision-cell.wrong{border-right:0;border-bottom:1px solid var(--line);}
  .case-list li{grid-template-columns:1fr;gap:8px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px;}
  .btn{padding:11px 18px;font-size:14.5px;}
  .hero-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  .hero h1{font-size:24px;}
  .section-title{font-size:20px;}
  .hero-tags li{font-size:12px;padding:5px 11px;}
  .card{padding:20px 18px;}
  .cta-band{padding:26px 20px;}
  .cta-actions .btn{width:100%;}
  .faq summary{padding:16px 44px 16px 16px;font-size:15px;}
  .faq .faq-body{padding:0 16px 18px;}
}

/* roulang page: category2 */
:root{
  --navy-900:#0e1f2e;
  --navy-800:#14293c;
  --navy-700:#1c3a52;
  --brand:#1f6f8b;
  --brand-dark:#155a72;
  --brand-soft:#e6f1f5;
  --gold:#c9a227;
  --gold-soft:#f6ecc9;
  --bg:#f6f8fa;
  --bg-alt:#eef3f7;
  --surface:#ffffff;
  --ink:#152a3a;
  --ink-soft:#4a6274;
  --muted:#7b8fa0;
  --line:#dfe7ee;
  --line-strong:#c8dae8;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --shadow-sm:0 1px 2px rgba(16,38,56,.06);
  --shadow:0 6px 18px rgba(16,38,56,.09);
  --shadow-lg:0 16px 36px rgba(16,38,56,.16);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.78;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;line-height:1.34;font-weight:700;color:var(--ink);}
p{margin:0;}
button{font:inherit;color:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,31,46,.98);
  border-bottom:1px solid rgba(255,255,255,.09);
  transition:box-shadow .22s ease,background .22s ease;
  backdrop-filter:saturate(140%) blur(6px);
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(8,22,34,.34);}
.header-inner{display:flex;align-items:center;height:64px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,#2f93b1,#155a72);
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 4px 12px rgba(31,111,139,.4);
}
.brand-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:6px;font-size:14.5px;
  color:rgba(255,255,255,.72);transition:color .18s,background .18s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
.nav-link.active{color:#fff;background:rgba(255,255,255,.11);}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--gold);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.22);
  background:transparent;border-radius:8px;align-items:center;justify-content:center;
  color:#fff;transition:background .18s,border-color .18s;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.38);}
.nav-toggle svg{width:20px;height:20px;}
.mobile-nav{display:none;padding:10px 24px 20px;border-top:1px solid rgba(255,255,255,.1);background:rgba(14,31,46,.99);}
.mobile-nav.open{display:block;}
.mobile-nav a{display:block;padding:12px 4px;color:rgba(255,255,255,.82);font-size:15px;border-bottom:1px solid rgba(255,255,255,.07);}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a:hover{color:#fff;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 5px 14px rgba(31,111,139,.3);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,111,139,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-dark);border-color:var(--line-strong);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.3);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);transform:translateY(-2px);}
.btn-gold{background:var(--gold);color:#231a02;box-shadow:0 5px 14px rgba(201,162,39,.32);}
.btn-gold:hover{background:#b8901e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,162,39,.38);}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;color:#fff;padding:54px 0 62px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/f728aff03b3e0539.webp') center/cover no-repeat;
  opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(9,24,38,.96) 0%,rgba(16,46,66,.88) 54%,rgba(24,64,88,.72) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(226,239,247,.68);margin-bottom:18px;}
.crumb a:hover{color:#fff;}
.crumb span.sep{color:rgba(255,255,255,.34);}
.hero-grid2{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.8px;color:#8fd0e3;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--gold);}
.page-hero h1{
  font-size:clamp(26px,3.2vw,38px);line-height:1.34;font-weight:800;letter-spacing:.3px;
  margin:14px 0 16px;color:#fff;
}
.page-hero h1 em{font-style:normal;color:#f0cf72;}
.hero-lead{font-size:15.5px;line-height:1.85;color:rgba(232,242,248,.87);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  color:rgba(238,247,252,.92);
}
.hero-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.2);box-shadow:var(--shadow-lg);
}
.hero-visual img{width:100%;height:322px;object-fit:cover;}
.hero-visual-note{
  position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;
  display:flex;align-items:center;gap:9px;font-size:13.5px;color:#fff;
  background:linear-gradient(0deg,rgba(9,24,38,.94),rgba(9,24,38,0));
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--gold);flex-shrink:0;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
.section.alt{background:var(--bg-alt);}
.section-head{max-width:780px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(21px,2.4vw,29px);position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--gold));
}
.section-head p{margin-top:12px;color:var(--ink-soft);font-size:15.5px;line-height:1.85;}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.icon-box{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:15px;
  border:1px solid rgba(31,111,139,.15);margin-bottom:14px;
}
.icon-box.gold{background:var(--gold-soft);color:#7a5f08;border-color:rgba(201,162,39,.28);}
.info-card h3{font-size:17px;margin-bottom:9px;}
.info-card p{font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

/* ---------- pattern grid ---------- */
.pattern-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.pattern-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pattern-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.pattern-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px;}
.pattern-name{font-size:16px;font-weight:700;}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark);
  border:1px solid rgba(31,111,139,.16);white-space:nowrap;
}
.tag-gold{background:var(--gold-soft);color:#7a5f08;border-color:rgba(201,162,39,.28);}
.tag-gray{background:#f1f5f8;color:var(--ink-soft);border-color:var(--line);}
.pattern-card p{font-size:14.5px;line-height:1.75;color:var(--ink-soft);}
.pattern-note{
  margin-top:22px;display:flex;gap:12px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--gold);
  border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm);
}
.pattern-note strong{color:var(--brand-dark);}
.pattern-note p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}

/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:start;}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:14px;
  font-size:15px;line-height:1.8;color:var(--ink-soft);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:14px;height:14px;border-radius:4px;
  background:var(--brand-soft);border:1px solid rgba(31,111,139,.28);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:13px;width:6px;height:6px;border-radius:2px;
  background:var(--brand);
}
.check-list li strong{color:var(--ink);}

.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.panel h3{font-size:17px;margin-bottom:6px;}
.panel .panel-sub{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.level-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-soft);
}
.level-row:first-of-type{border-top:0;}
.level-row strong{color:var(--brand-dark);font-size:16px;white-space:nowrap;}

/* ---------- steps ---------- */
.steps{display:grid;gap:14px;}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.step-num{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:var(--navy-800);color:#fff;font-weight:700;font-size:14px;
}
.step h3{font-size:16px;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}

/* ---------- pitfalls ---------- */
.pitfall{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pitfall:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.pitfall h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.pitfall h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);flex-shrink:0;}
.pitfall p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}

/* ---------- channel ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.channel-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand);}
.channel-card h3{font-size:17px;margin-bottom:8px;}
.channel-card p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;margin-bottom:14px;}
.channel-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-dark);}
.channel-card:hover .channel-link{color:var(--brand);}
.channel-card.is-current{border-color:rgba(31,111,139,.4);background:linear-gradient(180deg,#ffffff,#f3f9fb);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;
  font-size:15.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item summary:hover{color:var(--brand-dark);}
.faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--ink-soft);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(115deg,var(--navy-900),var(--navy-700) 58%,#1f6f8b 130%);
  color:#fff;padding:44px 40px;box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,162,39,.32),rgba(201,162,39,0) 68%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:clamp(20px,2.3vw,26px);margin-bottom:10px;}
.cta-band p{color:rgba(226,239,247,.82);font-size:15px;max-width:620px;line-height:1.85;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:rgba(226,239,247,.72);padding:52px 0 0;margin-top:0;}
.footer-top{border-top:1px solid rgba(255,255,255,.1);padding-top:40px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:42px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:14px;}
.footer-brand .brand-text{font-size:16px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(226,239,247,.66);max-width:420px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.3px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(226,239,247,.7);transition:color .18s;}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  margin-top:38px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(226,239,247,.52);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid2{grid-template-columns:1fr;gap:32px;}
  .hero-visual img{height:280px;}
  .grid-3,.pattern-grid,.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-gold{display:none;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .page-hero{padding:40px 0 46px;}
  .grid-3,.grid-2,.pattern-grid,.channel-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}}
@media (max-width:520px){
  body{font-size:15px;}
  .brand-text{font-size:15.5px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .hero-visual img{height:220px;}
  .step{grid-template-columns:1fr;gap:12px;}
  .section-head h2{padding-left:14px;}
}