:root{
    --ink:#0f2234; --muted:#5b6b7c; --line:#e3e9f0;
    --brand:#0f3b6d; --brand2:#155e97; --gold:#c8912f;
    --bg:#f6f8fb; --card:#fff;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
       color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
  a{color:var(--brand2);text-decoration:none}
  a:hover{text-decoration:underline}
  .wrap{max-width:1080px;margin:0 auto;padding:0 20px}

  /* ---------- 顶栏 ---------- */
  header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;gap:26px;height:64px}
  .logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--brand);letter-spacing:.5px}
  .logo .mark{width:34px;height:34px;border-radius:9px;background:var(--brand);color:#e8b84b;display:grid;place-items:center;font-size:18px;font-weight:700}
  .nav nav{display:flex;gap:22px;margin-left:auto;font-size:15px}
  .nav nav a{color:var(--muted)}
  .nav nav a:hover{color:var(--brand);text-decoration:none}
  @media(max-width:780px){ .nav nav{display:none} }

  /* ---------- 首屏 ---------- */
  .hero{background:linear-gradient(160deg,#0c2c52 0%,#0f3b6d 45%,#155e97 100%);color:#fff;padding:78px 0 86px;position:relative;overflow:hidden}
  .hero:after{content:"";position:absolute;right:-120px;top:-120px;width:460px;height:460px;border-radius:50%;
              background:radial-gradient(circle at 30% 30%,rgba(232,184,75,.28),transparent 62%)}
  .hero h1{margin:0 0 18px;font-size:clamp(28px,4.4vw,44px);line-height:1.28;letter-spacing:.5px}
  .hero p.lead{margin:0;font-size:clamp(15px,2vw,18px);color:#c9dbf0;max-width:640px}
  .hero .cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
  .btn{display:inline-block;padding:13px 28px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer}
  .btn-gold{background:linear-gradient(180deg,#e0ac48,#c8912f);color:#2a1d05}
  .btn-gold:hover{text-decoration:none;filter:brightness(1.06)}
  .btn-ghost{border-color:rgba(255,255,255,.42);color:#fff}
  .btn-ghost:hover{background:rgba(255,255,255,.1);text-decoration:none}
  .hero .facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;font-size:14px;color:#a8c4e2}
  .hero .facts b{display:block;font-size:20px;color:#fff;font-weight:600}

  /* ---------- 通用区块 ---------- */
  section{padding:64px 0}
  section.alt{background:#fff}
  h2{font-size:clamp(22px,3vw,30px);margin:0 0 10px;letter-spacing:.5px}
  .sub{color:var(--muted);margin:0 0 34px;font-size:15px}
  .grid{display:grid;gap:18px}
  .g2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
  .g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

  .card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
  .card h3{margin:0 0 8px;font-size:17px}
  .card p{margin:0;color:var(--muted);font-size:14.5px}
  .card .ico{width:40px;height:40px;border-radius:10px;background:#eef4fb;color:var(--brand2);
             display:grid;place-items:center;font-size:19px;margin-bottom:14px}

  /* ---------- 价格 ---------- */
  .plans{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));align-items:start}
  .plan{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 24px;position:relative}
  .plan.hot{border-color:var(--gold);box-shadow:0 10px 30px rgba(200,145,47,.16)}
  .plan .tag{position:absolute;top:-13px;left:24px;background:linear-gradient(180deg,#e0ac48,#c8912f);color:#2a1d05;
             font-size:12px;font-weight:700;padding:4px 12px;border-radius:20px}
  .plan h3{margin:0 0 4px;font-size:17px}
  .plan .price{font-size:38px;font-weight:700;color:var(--brand);line-height:1.1;margin:14px 0 2px}
  .plan .price small{font-size:15px;font-weight:500;color:var(--muted)}
  .plan .per{color:var(--muted);font-size:13.5px;min-height:22px}
  .plan ul{list-style:none;padding:0;margin:18px 0 22px;font-size:14.5px;color:#33475c}
  .plan ul li{padding-left:22px;position:relative;margin-bottom:9px}
  .plan ul li:before{content:"✓";position:absolute;left:0;color:#1f9d63;font-weight:700}
  .plan .btn{display:block;text-align:center;width:100%}
  .btn-brand{background:var(--brand);color:#fff}
  .btn-brand:hover{background:var(--brand2);text-decoration:none}
  .btn-line{border:1px solid var(--brand);color:var(--brand);background:#fff}
  .btn-line:hover{background:#f0f6fd;text-decoration:none}

  /* ---------- 权益对照表 ---------- */
  .cmp{margin-top:34px;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
  .cmp table{width:100%;border-collapse:collapse;font-size:14px}
  .cmp th,.cmp td{padding:11px 14px;text-align:center;border-bottom:1px solid var(--line)}
  .cmp thead th{background:#f2f6fb;font-weight:600;color:var(--brand)}
  .cmp tbody th{text-align:left;font-weight:400;color:#33475c}
  .cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:0}
  .cmp .yes{color:#1f9d63;font-weight:700}
  .cmp .no{color:#c3ccd6}
  .cmp-scroll{overflow-x:auto}

  /* ---------- 流程 ---------- */
  .steps{counter-reset:s;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
  .step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;position:relative}
  .step:before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:20px;width:30px;height:30px;border-radius:50%;
               background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}
  .step h4{margin:8px 0 6px;font-size:15.5px}
  .step p{margin:0;color:var(--muted);font-size:14px}

  /* ---------- 文档区 ---------- */
  .doc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}
  .doc h3{margin:0 0 12px;font-size:16.5px}
  .doc p,.doc li{font-size:14.5px;color:#33475c}
  .doc ol,.doc ul{padding-left:22px;margin:0}
  .doc li{margin-bottom:7px}
  .doc .note{background:#fdf7e9;border-left:3px solid var(--gold);padding:12px 16px;border-radius:0 8px 8px 0;font-size:14px;color:#5c4a24}

  /* ---------- 联系 ---------- */
  .contact{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
  .contact .card{text-align:center}
  .contact .big{font-size:22px;font-weight:700;color:var(--brand);margin:6px 0 0;word-break:break-all}

  /* ---------- 页脚 ---------- */
  footer{background:#0b1c2e;color:#8fa6bd;padding:38px 0 30px;font-size:13.5px;line-height:1.9}
  footer a{color:#b9cde3}
  footer .row{display:flex;flex-wrap:wrap;gap:10px 26px}
  footer .hr{height:1px;background:rgba(255,255,255,.1);margin:22px 0}
  .hint{color:#6f869c;font-size:12.5px}
  .placeholder{background:#ffe9a8;color:#7a5200;border-radius:4px;padding:0 4px}

  /* ---------- 多页面补充（2026-10-26） ---------- */
  .nav nav a.on{color:var(--brand);font-weight:600}
  .menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:14px;color:var(--brand);cursor:pointer}
  @media(max-width:780px){
    .menu-btn{display:block}
    .nav{flex-wrap:wrap;height:auto;min-height:64px}
    .nav nav.open{display:flex;flex-direction:column;gap:0;width:100%;margin:0 0 10px;border-top:1px solid var(--line)}
    .nav nav.open a{padding:11px 2px;border-bottom:1px solid var(--line)}
  }
  .page-head{background:linear-gradient(160deg,#0c2c52 0%,#0f3b6d 55%,#155e97 100%);color:#fff;padding:44px 0 40px}
  .page-head h1{margin:0 0 8px;font-size:clamp(24px,3.6vw,34px);letter-spacing:.5px;text-wrap:balance}
  .page-head p{margin:0;color:#c9dbf0;max-width:680px;font-size:15px}
  .crumb{font-size:13px;color:#a8c4e2;margin-bottom:12px}
  .crumb a{color:#d7e5f3}
  .prose{max-width:820px}
  .prose h2{font-size:20px;margin:34px 0 10px}
  .prose h2:first-child{margin-top:0}
  .prose h3{font-size:16.5px;margin:22px 0 8px}
  .prose p,.prose li{font-size:15px;color:#33475c}
  .prose ol,.prose ul{padding-left:22px}
  .prose li{margin-bottom:7px}
  .prose .meta{color:var(--muted);font-size:13.5px}
  .info{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
  .info th,.info td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
  .info th{width:34%;color:var(--muted);font-weight:500;background:#f8fafd}
  .info tr:last-child th,.info tr:last-child td{border-bottom:0}
  .more{display:inline-block;margin-top:12px;font-size:14px;font-weight:600}
  .card ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:14px}
  .card ul li{margin-bottom:4px}
  .faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:12px}
  .faq summary{cursor:pointer;font-weight:600;font-size:15px}
  .faq details p{margin:10px 0 0;color:#33475c;font-size:14.5px}
  a:focus-visible,.btn:focus-visible,summary:focus-visible,.menu-btn:focus-visible{outline:2px solid var(--gold);outline-offset:2px}