:root{
  --ink:#1b222b;
  --ink-2:#5a6675;
  --line:#e3e7ec;
  --bg:#f6f7f9;
  --card:#fff;
  --brand:#0d5c63;
  --brand-2:#12878f;
  --gold:#b8863b;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:15px}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.hd{display:flex;align-items:center;justify-content:space-between;gap:20px;height:60px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:12px}
.logo img{height:28px;width:auto;display:block}
.logo .site-name{font-size:32px;font-weight:700;color:var(--brand);line-height:1;letter-spacing:.5px}
@media(max-width:640px){.hd{height:auto;padding:10px 0;gap:10px}.logo{gap:8px}.logo img{height:18px}.logo .site-name{font-size:20px}nav{width:100%;gap:16px;font-size:13px}}
nav{display:flex;gap:22px;font-size:14px;flex-wrap:wrap}
nav a{color:var(--ink-2);padding:6px 0;border-bottom:2px solid transparent}
nav a:hover,nav a.on{color:var(--brand);border-bottom-color:var(--brand)}

.hero{background:linear-gradient(135deg,#0d5c63,#12878f);color:#fff;padding:52px 0 46px}
.hero h1{font-size:34px;line-height:1.35;font-weight:700;letter-spacing:1px}
.hero p{margin-top:12px;color:#d9eff1;font-size:15px;max-width:720px}
.hero .btns{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:10px 22px;border-radius:6px;font-size:14px;background:#fff;color:var(--brand);font-weight:600}
.btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}

section{padding:44px 0}
h2{font-size:20px;color:var(--brand);margin-bottom:8px}
h2::after{content:"";display:block;width:44px;height:3px;background:var(--gold);margin-top:8px;border-radius:2px}
.sub{color:var(--ink-2);font-size:13.5px;margin:10px 0 24px}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
@media(max-width:820px){.grid,.grid.two{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px 20px}
.card h3{font-size:16px;color:var(--ink);margin-bottom:8px}
.card p{color:var(--ink-2);font-size:13.5px}
.card ul{margin-top:8px;padding-left:18px;color:var(--ink-2);font-size:13.5px}
.card ul li{margin-bottom:4px}
.card .tag{display:inline-block;font-size:12px;color:var(--gold);border:1px solid var(--gold);border-radius:20px;padding:1px 9px;margin-bottom:10px}

.steps{counter-reset:s;display:grid;gap:14px}
.step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 20px;display:flex;gap:16px;align-items:flex-start}
.step .n{counter-increment:s;flex:none;width:30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;font-size:14px;display:flex;align-items:center;justify-content:center;font-weight:600}
.step h4{font-size:15px;margin-bottom:4px}
.step p{color:var(--ink-2);font-size:13.5px}

.note{background:#fffaf0;border:1px solid #f0e0c4;border-radius:8px;padding:14px 18px;color:#7a5a1f;font-size:13.5px;margin-top:20px}

.contact{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}
.tel{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:820px){.tel{grid-template-columns:1fr}}
.tel .item{border-left:3px solid var(--brand);padding-left:14px}
.tel .item span{display:block;font-size:12.5px;color:var(--ink-2)}
.tel .item b{display:block;font-size:19px;color:var(--brand);letter-spacing:.5px;margin-top:2px}

footer{background:#12262a;color:#b9c8ca;font-size:13px;padding:30px 0 34px;margin-top:20px}
footer .f{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a:hover{color:#fff}
footer .cr{margin-top:16px;color:#7d8f91;font-size:12.5px}

.blank{background:#fff;border:1px dashed var(--line);border-radius:10px;padding:40px 20px;text-align:center;color:var(--ink-2);font-size:14px}

@media(max-width:640px){header nav{width:100%;gap:12px;font-size:13px}header nav a{padding:4px 0}}

.hero .hero-sub{margin-top:10px;font-size:18px;font-weight:400;color:#fff;opacity:.9}
.page-title{font-size:20px;color:var(--brand);margin-bottom:8px}
.page-title::after{content:"";display:block;width:44px;height:3px;background:var(--gold);margin-top:8px;border-radius:2px}