:root{
    --navy:#0b2d52; --navy2:#123f6e; --teal:#0f7b7b; --teal2:#12908f;
    --gold:#c8a24a; --bg:#f6f8fb; --card:#fff; --line:#e3e8ef;
    --text:#17212f; --muted:#5b6b7f; --soft:#eef4f8;
    --shadow:0 10px 30px rgba(11,45,82,.08);
    --radius:16px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--bg);color:var(--text);
    font-family:"Microsoft YaHei","PingFang SC","Segoe UI",system-ui,-apple-system,sans-serif;
    font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:1180px;margin:0 auto;padding:0 24px}
  .ann{background:var(--navy);color:#dbe7f3;font-size:12.5px;text-align:center;padding:6px 12px}
  .ann b{color:#fff}
  header{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
    position:sticky;top:0;z-index:30}
  .head{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
  .brand{display:flex;align-items:center;gap:11px;min-width:0}
  .mark{width:40px;height:40px;border-radius:50%;background:#fff;display:block;object-fit:contain;flex:none}
  .brand b{display:block;font-size:17px;color:var(--navy);letter-spacing:.4px;line-height:1.2}
  .brand small{display:block;color:var(--muted);font-size:11.5px;letter-spacing:.8px}
  nav{display:flex;gap:24px;font-size:14px;color:#33455a}
  nav a{position:relative;padding:6px 0}
  nav a:hover{color:var(--teal)}
  nav a:hover:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--teal)}
  .actions{display:flex;align-items:center;gap:12px;font-size:14px}
  .actions .login{color:var(--muted)}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;
    padding:12px 20px;font-size:14.5px;font-weight:700;background:var(--navy);color:#fff;border:0;cursor:pointer;
    font-family:inherit;transition:background .15s, transform .06s}
  .btn:hover{background:var(--navy2)}
  .btn:active{transform:translateY(1px)}
  .btn.sm{padding:9px 16px;font-size:13.5px;border-radius:9px}
  .btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--line)}
  .btn.ghost:hover{border-color:var(--teal);background:#f8fcfc}
  .btn.gold{background:var(--gold);color:#1c1608}
  .btn.gold:hover{background:#d8b25c}
  .menu{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 10px;cursor:pointer}

  .hero{background:
      radial-gradient(900px 420px at 84% 0%,rgba(15,123,123,.12),transparent 60%),
      radial-gradient(700px 380px at 0% 20%,rgba(11,45,82,.09),transparent 60%),
      linear-gradient(180deg,#fff,#f2f7fb);
    border-bottom:1px solid var(--line);overflow:hidden}
  .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;padding:64px 0 58px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--teal);
    background:#e9f5f4;border:1px solid #cfe8e6;border-radius:999px;padding:5px 12px}
  .eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
  h1{font-size:54px;line-height:1.12;letter-spacing:-.8px;margin:18px 0 16px;color:var(--navy)}
  h1 em{font-style:normal;color:var(--teal);position:relative;white-space:nowrap}
  h1 em:after{content:"";position:absolute;left:0;right:0;bottom:4px;height:9px;background:rgba(200,162,74,.28);z-index:-1}
  .lede{font-size:17px;color:#40536a;margin:0 0 26px;max-width:560px}
  .cta{display:flex;gap:12px;flex-wrap:wrap}
  .trust{display:flex;gap:28px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
  .trust div{min-width:92px}
  .trust b{display:block;font-size:24px;color:var(--navy);line-height:1.15;letter-spacing:-.3px}
  .trust span{font-size:12.5px;color:var(--muted)}
  .hero-media{position:relative}
  .shot{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 24px 60px rgba(11,45,82,.16)}
  .shot img{display:block;width:100%;height:auto}
  .float{position:absolute;left:-18px;bottom:-18px;background:#fff;border:1px solid var(--line);
    border-radius:12px;padding:12px 16px;box-shadow:var(--shadow);font-size:12.5px;color:var(--muted)}
  .float b{display:block;color:var(--navy);font-size:14px}

  section{padding:72px 0}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
  .kicker{font-size:12px;font-weight:800;letter-spacing:1.4px;color:var(--teal);text-transform:uppercase}
  h2{font-size:30px;line-height:1.25;margin:8px 0 0;color:var(--navy);letter-spacing:-.3px}
  .sec-head p{margin:8px 0 0;color:var(--muted);font-size:14px}
  .more{font-size:13.5px;color:var(--teal);font-weight:700;white-space:nowrap}

  .grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 2px 10px rgba(11,45,82,.03)}
  .card .ic{width:38px;height:38px;border-radius:10px;background:#eaf3f8;color:var(--blue,#145c9e);
    display:flex;align-items:center;justify-content:center;margin-bottom:14px}
  .card h3{margin:0 0 6px;font-size:16px;color:var(--navy)}
  .card p{margin:0;font-size:13px;color:var(--muted);line-height:1.65}
  .card .tag{display:inline-block;margin-top:12px;font-size:11.5px;font-weight:700;color:var(--teal);
    background:#e9f5f4;border-radius:999px;padding:3px 9px}

  .industries{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
  .ind{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff}
  .ind .dot{width:30px;height:30px;border-radius:8px;background:var(--soft);color:var(--navy);
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:12px;flex:none}
  .ind b{display:block;font-size:13.5px;color:var(--navy);line-height:1.3}
  .ind span{font-size:11.5px;color:var(--muted)}

  .quality{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .quality h2{font-size:32px}
  .quality .lede{font-size:15px;margin:14px 0 26px}
  .qlist{display:grid;gap:14px}
  .q{display:flex;gap:12px;align-items:flex-start}
  .q .tick{width:26px;height:26px;border-radius:50%;background:#e9f5f4;color:var(--teal);flex:none;
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
  .q b{display:block;font-size:14px;color:var(--navy)}
  .q p{margin:2px 0 0;font-size:12.5px;color:var(--muted)}
  .datacard{background:var(--navy);color:#fff;border-radius:18px;padding:28px;box-shadow:0 20px 50px rgba(11,45,82,.22)}
  .datacard .row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:13px}
  .datacard .row:last-child{border-bottom:0}
  .datacard .row b{font-size:16px;color:#fff}
  .datacard .row span{color:#b9cbe0}
  .datacard .top{font-size:11.5px;letter-spacing:1.2px;color:#8fd0cf;font-weight:800;margin-bottom:8px}

  .research{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .qcards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
  .qcard{background:#fff;border:1px solid #d9e6ee;border-radius:14px;padding:18px 20px}
  .qcard .badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;color:var(--teal);
    background:#e9f5f4;border-radius:999px;padding:3px 9px;margin-bottom:10px}
  .qcard b{display:block;font-size:15px;color:var(--navy);line-height:1.55}
  .qcard span{display:block;margin-top:8px;font-size:12px;color:var(--muted)}

  .who{background:#fff;border-top:1px solid var(--line)}
  .seg{display:flex;gap:14px;align-items:flex-start;padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff}
  .seg .ic{width:40px;height:40px;border-radius:10px;background:#f1f5f9;color:var(--navy);flex:none;
    display:flex;align-items:center;justify-content:center}
  .seg b{display:block;font-size:14.5px;color:var(--navy)}
  .seg p{margin:4px 0 0;font-size:12.5px;color:var(--muted)}

  .band{background:
      radial-gradient(700px 340px at 80% 20%,rgba(15,123,123,.35),transparent 60%),
      linear-gradient(135deg,var(--navy),#0a2342);
    color:#fff;border-radius:22px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px;
    box-shadow:0 24px 60px rgba(11,45,82,.25)}
  .band h2{color:#fff;font-size:32px;margin:0 0 8px}
  .band p{margin:0;color:#c9d8e8;font-size:14px}
  .band .cta{flex:none}

  footer{background:#081b31;color:#a9bbd0;padding:48px 0 24px;font-size:12.5px}
  .fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:26px}
  .fcol b{display:block;color:#fff;font-size:13px;margin-bottom:10px}
  .fcol a{display:block;color:#a9bbd0;padding:3px 0}
  .fcol a:hover{color:#fff}
  .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
  .fbrand .mark{width:36px;height:36px;background:#fff}
  .fbrand b{color:#fff;font-size:16px}
  .fbot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.1);
    margin-top:34px;padding-top:18px;color:#7f95ad}

  @media (max-width:980px){
    .hero-grid,.quality{grid-template-columns:1fr;gap:34px}
    .grid4,.ind-grid{grid-template-columns:1fr 1fr}
    nav{display:none}.menu{display:block}
    h1{font-size:40px}
    .band{flex-direction:column;align-items:flex-start;padding:34px}
    .fgrid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:620px){
    .grid4,.ind-grid,.qcards{grid-template-columns:1fr}
    .brand small{display:none}
    .brand b{font-size:15px;white-space:nowrap}
    .actions .login{display:none}
    .head{height:60px;gap:10px}
    .menu{display:block}
    .hero-grid{padding:38px 0}
    h1{font-size:34px}
    .trust{gap:18px}
    .trust b{font-size:21px}
    .shot{box-shadow:0 16px 36px rgba(11,45,82,.14)}
    .float{left:10px;bottom:-14px}
    .sec-head{flex-direction:column;align-items:flex-start}
    .fgrid{grid-template-columns:1fr}
  }
/* 可点击卡片 & 移动菜单 */
.card{display:block;color:inherit;transition:border-color .15s, box-shadow .15s, transform .15s}
.card:hover{border-color:#cfe0ea;box-shadow:0 12px 28px rgba(11,45,82,.08);transform:translateY(-2px)}
nav a.active{color:var(--teal)}
nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--teal)}
@media (max-width:980px){
  header.nav-open nav{display:flex;position:absolute;top:68px;left:0;right:0;background:#fff;
    padding:12px 24px 18px;flex-direction:column;gap:2px;border-bottom:1px solid var(--line);
    box-shadow:0 16px 30px rgba(11,45,82,.10);z-index:40}
  header.nav-open nav a{padding:10px 0;border-bottom:1px solid #f0f3f7}
}
@media (max-width:620px){header.nav-open nav{top:60px}}