:root {
  --primary: #0e9f6e;
  --primary-dark: #0b7d56;
  --primary-darker: #075c40;
  --ink: #1f2a30;
  --muted: #5b6b73;
  --line: #e7ece9;
  --bg: #f5f8f6;
  --card: #ffffff;
  --shadow: 0 14px 40px rgba(11, 125, 86, 0.08);
  --shadow-lg: 0 24px 60px rgba(11, 125, 86, 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: min(1160px, 92vw); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 19px; }
.brand .logo {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-darker));
  display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800;
}
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 1px; }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { font-size: 15px; color: var(--ink); position: relative; padding: 6px 0; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--primary); border-radius: 2px;
}
.nav-cta { background: var(--primary); color: #fff; padding: 9px 18px; border-radius: 999px; font-size: 14px; }
.nav-cta:hover { background: var(--primary-dark); }
.nav-toggle { display: none; font-size: 26px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(1200px 500px at 80% -10%, rgba(14,159,110,0.18), transparent 60%),
              linear-gradient(160deg, #0b7d56, #075c40);
  color: #fff; padding: 90px 0 100px; position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%); border-radius: 50%;
}
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 50px; align-items: center; }
.hero h1 { font-size: 44px; line-height: 1.2; margin-bottom: 18px; letter-spacing: 1px; }
.hero p { font-size: 17px; color: rgba(255,255,255,0.9); max-width: 520px; }
.hero .tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 32px; }
.hero .tags span {
  background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.25);
  padding: 7px 14px; border-radius: 999px; font-size: 13px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 999px; font-size: 15px; font-weight: 600;
}
.btn-light { background: #fff; color: var(--primary-darker); }
.btn-light:hover { opacity: 0.92; }
.btn-ghost { border: 1px solid rgba(255,255,255,0.6); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }

.hero-card {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.22);
  border-radius: 18px; padding: 28px; backdrop-filter: blur(6px);
}
.hero-card h3 { font-size: 16px; margin-bottom: 14px; opacity: 0.95; }
.hero-card ul { list-style: none; }
.hero-card li { display: flex; gap: 10px; padding: 7px 0; font-size: 14px; color: rgba(255,255,255,0.92); }
.hero-card li::before { content: "✓"; color: #9be7c4; font-weight: 700; }

/* ---------- 通用区块 ---------- */
.section { padding: 78px 0; }
.section.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 46px; }
.section-head .kicker { color: var(--primary); font-weight: 700; letter-spacing: 3px; font-size: 13px; }
.section-head h2 { font-size: 32px; margin: 10px 0 12px; }
.section-head p { color: var(--muted); font-size: 16px; }

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 30px 22px; text-align: center;
  box-shadow: var(--shadow);
}
.stat .num { font-size: 38px; font-weight: 800; color: var(--primary); }
.stat .lab { color: var(--muted); margin-top: 6px; font-size: 14px; }

/* ---------- 业务卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 30px 26px;
  box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card .ico {
  width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: rgba(14,159,110,0.12); color: var(--primary); margin-bottom: 16px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }

/* ---------- 优势 ---------- */
.feature-list { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 30px; }
.feature-list li { display: flex; gap: 14px; align-items: flex-start; }
.feature-list .dot { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; margin-top: 3px; }
.feature-list b { display: block; font-size: 16px; }
.feature-list span { color: var(--muted); font-size: 14px; }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-grid h2 { font-size: 30px; margin-bottom: 16px; }
.about-grid p { color: var(--muted); margin-bottom: 14px; font-size: 15.5px; }
.about-visual {
  border-radius: 20px; min-height: 320px; padding: 36px; color: #fff;
  background: linear-gradient(160deg, #0e9f6e, #075c40);
  display: flex; flex-direction: column; justify-content: center; gap: 16px;
}
.about-visual .ql { background: rgba(255,255,255,0.14); border-left: 4px solid #9be7c4; padding: 12px 16px; border-radius: 8px; font-size: 15px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info .item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact-info .item .ci { width: 44px; height: 44px; border-radius: 12px; background: rgba(14,159,110,0.12); color: var(--primary); display: flex; align-items: center; justify-content: center; flex: none; }
.contact-info .item b { font-size: 15px; display: block; }
.contact-info .item span { color: var(--muted); font-size: 14.5px; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px; box-shadow: var(--shadow); }
.form-card h3 { font-size: 18px; margin-bottom: 18px; }
.form-card label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
.form-card input, .form-card textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-size: 15px;
  font-family: inherit; background: #fafbfa;
}
.form-card input:focus, .form-card textarea:focus { outline: none; border-color: var(--primary); background: #fff; }
.form-card textarea { resize: vertical; min-height: 110px; }
.form-card .submit { margin-top: 18px; background: var(--primary); color: #fff; border: none; padding: 13px 22px; border-radius: 999px; font-size: 15px; font-weight: 600; cursor: pointer; }
.form-card .submit:hover { background: var(--primary-dark); }
.form-note { font-size: 13px; color: var(--muted); margin-top: 12px; }

/* ---------- 页脚 ---------- */
.footer { background: #0c1b16; color: #cfdad4; padding: 54px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer a { color: #cfdad4; font-size: 14px; display: block; padding: 5px 0; }
.footer a:hover { color: #fff; }
.footer .about-f { font-size: 14px; line-height: 1.9; }
.footer .copy { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 36px; padding-top: 20px; font-size: 13px; color: #8fa39a; text-align: center; }
.footer .copy a { display: inline; color: #8fa39a; text-decoration: none; border-bottom: 1px dashed rgba(143,163,154,0.5); }
.footer .copy a:hover { color: #fff; border-bottom-color: #fff; }

/* ---------- 公安备案图标 ---------- */
.footer .copy a.police-record,
.footer .copy a.police-record:hover { border-bottom: none; }
.footer .copy .police-record img {
  width: 18px; height: 18px; display: inline-block;
  vertical-align: -4px; margin-right: 5px; border: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; gap: 0; padding: 8px 0; border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 24px; }
  .nav-links a.active::after { display: none; }
  .nav-cta { margin: 8px 24px; text-align: center; }
  .nav-toggle { display: block; }
  .hero-grid, .about-grid, .contact-grid, .grid-3, .grid-2, .stats, .feature-list { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 54px 0; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .stats { gap: 14px; }
}