:root {
  --teal: #0f766e;
  --teal-deep: #0b4f4a;
  --teal-soft: #e6f4f2;
  --ink: #1a2b32;
  --muted: #5c6f75;
  --line: #d7e4e2;
  --bg: #ffffff;
  --bg-soft: #f6faf9;
  --gold: #c98a2d;
  --red: #c0392b;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(15, 118, 110, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
}
img { max-width: 100%; }
a { color: var(--teal); text-decoration: none; }

/* ---------- 顶栏 ---------- */
.topbar {
  background: var(--teal-deep);
  color: #cfe8e5;
  font-size: 13px;
  padding: 6px 0;
}
.topbar .wrap { display: flex; justify-content: space-between; }
.topbar strong { color: #ffd894; font-weight: 600; }
header.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--teal-deep); }
.brand .logo {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--teal); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800;
}
.brand small { display: block; font-size: 11px; color: var(--muted); font-weight: 400; letter-spacing: 1px; }
nav.main { display: flex; gap: 26px; }
nav.main a { color: var(--ink); font-weight: 500; font-size: 15px; padding: 6px 0; border-bottom: 2px solid transparent; }
nav.main a:hover, nav.main a.active { color: var(--teal); border-bottom-color: var(--teal); }
.nav-cta {
  background: var(--teal); color: #fff !important;
  padding: 9px 20px; border-radius: 999px; font-weight: 600;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--teal-deep) 0%, var(--teal) 60%, #12897f 100%);
  color: #fff;
  padding: 74px 0 84px;
}
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 40px; line-height: 1.3; margin-bottom: 16px; }
.hero h1 em { font-style: normal; color: #ffd894; }
.hero p.lead { font-size: 17px; color: #d9efec; margin-bottom: 28px; max-width: 480px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 30px; border-radius: 999px;
  font-weight: 600; font-size: 16px; transition: 0.2s;
}
.btn-primary { background: #ffd894; color: #5a3b00; }
.btn-primary:hover { background: #ffcf78; }
.btn-ghost { border: 1.5px solid rgba(255,255,255,0.7); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.hero-card {
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 18px; padding: 26px;
  backdrop-filter: blur(4px);
}
.hero-card h3 { font-size: 16px; margin-bottom: 14px; color: #ffd894; }
.hero-card li { list-style: none; padding: 9px 0; border-bottom: 1px dashed rgba(255,255,255,0.18); font-size: 15px; display: flex; justify-content: space-between; }
.hero-card li:last-child { border-bottom: none; }
.hero-card .p { color: #ffd894; font-weight: 700; }
.hero-note { font-size: 12px; color: #a8cdc9; margin-top: 10px; }

/* ---------- 通用 section ---------- */
section.block { padding: 72px 0; }
section.block.alt { background: var(--bg-soft); }
.kicker { color: var(--teal); font-weight: 700; letter-spacing: 3px; font-size: 13px; margin-bottom: 8px; }
h2.title { font-size: 30px; margin-bottom: 12px; }
p.sub { color: var(--muted); margin-bottom: 40px; max-width: 640px; }

/* 服务卡片 */
.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: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow); transition: 0.2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(15,118,110,0.14); }
.card .ico {
  width: 52px; height: 52px; border-radius: 13px;
  background: var(--teal-soft); color: var(--teal);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 16px;
}
.card h3 { font-size: 19px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; }
.card .price { margin-top: 14px; color: var(--teal); font-weight: 700; }
.card .price small { color: var(--muted); font-weight: 400; }

/* 流程 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; position: relative; }
.step .n {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--teal); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-bottom: 12px;
}
.step h4 { font-size: 16.5px; margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--muted); }

/* 保障条 */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center; }
.trust .t { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 14px; }
.trust .t b { display: block; font-size: 22px; color: var(--teal); }
.trust .t span { font-size: 13.5px; color: var(--muted); }

/* 声明框 */
.notice {
  background: #fff8ee; border: 1px solid #f2ddb5; border-left: 4px solid var(--gold);
  border-radius: 10px; padding: 18px 22px; font-size: 14px; color: #6b5322;
  margin-top: 36px;
}
.notice b { color: #8a5a00; }

/* 覆盖 */
.cover-cities { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.city {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 18px; font-size: 14px; color: var(--teal-deep);
}

/* CTA 条 */
.cta-band {
  background: linear-gradient(120deg, var(--teal-deep), var(--teal));
  color: #fff; border-radius: 18px; padding: 40px 44px;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
}
.cta-band h3 { font-size: 24px; margin-bottom: 6px; }
.cta-band p { color: #cfe8e5; }
.cta-band .tel { font-size: 30px; font-weight: 800; color: #ffd894; white-space: nowrap; }

/* 页脚 */
footer { background: #0a3a36; color: #9fc4c0; padding: 46px 0 30px; font-size: 14px; }
footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
footer h4 { color: #fff; font-size: 15.5px; margin-bottom: 14px; }
footer li { list-style: none; padding: 4px 0; }
footer a { color: #9fc4c0; }
footer .fine { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 30px; padding-top: 18px; font-size: 12.5px; line-height: 1.9; color: #7ba8a4; }

/* 页内 banner */
.page-hero {
  background: linear-gradient(135deg, var(--teal-deep), var(--teal));
  color: #fff; padding: 52px 0;
}
.page-hero h1 { font-size: 32px; }
.page-hero p { color: #d9efec; max-width: 620px; }

/* 表格 */
table.svc { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
table.svc th, table.svc td { border-bottom: 1px solid var(--line); padding: 14px 18px; text-align: left; font-size: 15px; }
table.svc th { background: var(--teal); color: #fff; font-weight: 600; }
table.svc tr:last-child td { border-bottom: none; }
table.svc td.price { color: var(--teal); font-weight: 700; white-space: nowrap; }

/* FAQ */
details.faq { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px 22px; margin-bottom: 14px; }
details.faq summary { font-weight: 600; cursor: pointer; font-size: 16px; }
details.faq p { margin-top: 10px; color: var(--muted); font-size: 15px; }

/* 联系卡片 */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-grid .card { text-align: center; }
.contact-grid .big { font-size: 22px; font-weight: 800; color: var(--teal-deep); margin: 8px 0; }

/* 响应式 */
@media (max-width: 900px) {
  .hero .wrap, .grid-3, .grid-2, .contact-grid { grid-template-columns: 1fr; }
  .steps, .trust { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 30px; }
  nav.main { display: none; }
  .cta-band { flex-direction: column; text-align: center; }
  footer .wrap { grid-template-columns: 1fr; }
}