:root{
  --bg:#0b0c10;
  --panel:#111218;
  --muted:#8a8fa3;
  --text:#e9ecf1;
  --primary:#4f8cff;
  --primary-600:#3f6fd1;
  --border:#1e2230;
  --card:#121420;
  --alt:#0f1118;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height:1.6;
}

a{color:var(--text);text-decoration:none}
a:hover{opacity:.9}

.container{max-width:1080px;margin:0 auto;padding:0 20px}

.site-header{
  position:sticky;top:0;z-index:10;
  background:rgba(11,12,16,.8);backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:700;letter-spacing:.5px}
.logo.small{font-size:14px}
.nav a{margin-left:18px;padding:8px 10px;border-radius:8px}
.nav a.active,.nav a:hover{background:rgba(255,255,255,.06)}

.hero{
  padding:80px 0;background:
    radial-gradient(80% 100% at 10% 10%, rgba(79,140,255,.18), transparent 70%),
    radial-gradient(60% 80% at 90% 20%, rgba(79,140,255,.12), transparent 60%);
  text-align:left;
}
.hero h1{font-size:40px;margin:0 0 12px}
.hero p{color:var(--muted);margin:0 0 24px}
.hero-actions .btn{margin-right:12px}

.section{padding:56px 0}
.section.alt{background:var(--alt)}
.section-title{font-size:24px;margin:0 0 16px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width: 820px){
  .grid-3,.grid-2{grid-template-columns:1fr}
  .hero{text-align:center}
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  padding:18px;
}

.split{display:grid;grid-template-columns:1.4fr .6fr;gap:24px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;text-align:center}
.stat .num{font-size:28px;font-weight:700}
.stat .label{color:var(--muted);font-size:12px}
@media (max-width: 820px){
  .split{grid-template-columns:1fr}
}

.btn{
  display:inline-block;padding:10px 16px;border:1px solid var(--border);
  border-radius:10px;background:transparent;color:var(--text);
}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-600);border-color:var(--primary-600)}
.center{text-align:center}

.page-hero{padding:56px 0;border-bottom:1px solid var(--border);background:var(--panel)}
.page-hero .muted{color:var(--muted)}

.list{padding-left:18px}
.list li{margin:8px 0}

.form label{display:block;margin-bottom:12px;font-size:14px}
.form input,.form textarea{
  width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);
  background:#0c0f16;color:var(--text);outline:none;
}
.form input:focus,.form textarea:focus{border-color:var(--primary)}

.map-placeholder{
  height:220px;border-radius:12px;border:1px dashed var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--muted);background:#0c0f16;
}

.site-footer{
  border-top:1px solid var(--border);background:var(--panel);margin-top:40px
}
.footer-inner{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;padding:20px 0;gap:12px}
.footer-col{min-width:260px}
.muted{color:var(--muted)}
.small{font-size:12px}
.beian a{color:var(--muted);text-decoration:underline}
.sep{margin:0 8px;color:var(--muted)}