:root {
  --ink: #1f2a26;
  --muted: #5c6b64;
  --accent: #0f6e56;
  --accent-dark: #085041;
  --accent-light: #e1f5ee;
  --bg: #ffffff;
  --surface: #f5f7f6;
  --border: #dfe5e2;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
a { color: var(--accent); text-decoration: none; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 10;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { font-size: 18px; font-weight: 600; color: var(--ink); }
.brand span { color: var(--accent); }
.site-nav { display: flex; gap: 28px; }
.site-nav a { color: var(--muted); font-size: 15px; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); }

/* hero */
.hero { background: var(--accent-light); padding: 72px 0; }
.hero h1 { font-size: 32px; line-height: 1.35; margin-bottom: 16px; }
.hero p { color: var(--muted); max-width: 640px; font-size: 17px; }
.hero .btn-row { margin-top: 28px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 8px;
  font-size: 16px; font-weight: 500;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { border: 1px solid var(--accent); color: var(--accent); }

/* sections */
section { padding: 56px 0; }
section.alt { background: var(--surface); }
.section-title { font-size: 24px; margin-bottom: 8px; }
.section-sub { color: var(--muted); margin-bottom: 32px; }

/* cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px;
}
.card h3 { font-size: 17px; margin-bottom: 8px; color: var(--ink); }
.card p { color: var(--muted); font-size: 14.5px; }
.card .tag {
  display: inline-block; font-size: 12px; color: var(--accent);
  background: var(--accent-light); border-radius: 4px; padding: 2px 8px; margin-bottom: 10px;
}

/* list pages */
.prose { max-width: 760px; }
.prose h2 { font-size: 22px; margin: 40px 0 12px; }
.prose h3 { font-size: 18px; margin: 28px 0 8px; }
.prose p, .prose li { color: #37423d; }
.prose ul { padding-left: 22px; margin: 8px 0; }

/* table */
.price-table { width: 100%; border-collapse: collapse; margin: 16px 0 8px; font-size: 15px; }
.price-table th, .price-table td {
  border: 1px solid var(--border); padding: 10px 14px; text-align: left;
}
.price-table th { background: var(--accent-light); color: var(--accent-dark); font-weight: 500; }
.price-note { color: var(--muted); font-size: 13.5px; }

/* faq */
.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 24px; margin-bottom: 16px; max-width: 820px;
}
.faq-item h3 { font-size: 16.5px; margin-bottom: 8px; }
.faq-item p { color: #37423d; font-size: 15px; }

/* CTA band */
.cta-band { background: var(--accent-dark); color: #fff; padding: 48px 0; text-align: center; }
.cta-band h2 { font-size: 22px; margin-bottom: 8px; }
.cta-band p { color: #cfe6de; margin-bottom: 20px; }
.cta-band .btn { background: #fff; color: var(--accent-dark); }

/* footer */
.site-footer {
  border-top: 1px solid var(--border); background: var(--surface);
  padding: 40px 0 32px; font-size: 14px; color: var(--muted);
}
.site-footer .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; }
.site-footer h4 { color: var(--ink); font-size: 15px; margin-bottom: 8px; }
.site-footer address { font-style: normal; }
.copyright { margin-top: 28px; font-size: 13px; }
.copyright + .copyright { margin-top: 4px; }
.copyright a { color: var(--muted); }
.copyright a:hover { color: var(--accent); }
.copyright-gongan a { display: inline-flex; align-items: center; gap: 5px; }
.copyright-gongan img {
  display: block; width: 20px; height: 20px; border: 0;
  vertical-align: middle;
}


/* stats band */
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px; margin-top: 36px;
}
.stat {
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  padding: 18px 20px; text-align: center;
}
.stat b { display: block; font-size: 22px; color: var(--accent-dark); font-weight: 500; }
.stat span { font-size: 13px; color: var(--muted); }

/* numbered feature blocks */
.num-tag {
  display: inline-block; font-size: 13px; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 6px;
  padding: 0 8px; margin-bottom: 12px; line-height: 1.8;
}
.step-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.step-list .card h3 span { color: var(--accent); margin-right: 6px; }


/* 顶部电话条 */
.tel-strip { background: var(--accent-dark); color: #fff; font-size: 14.5px; }
.tel-strip .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; height: 40px;
}
.tel-strip .tel-strip-label { color: #cfe6de; font-size: 13.5px; }
.tel-strip a { color: #fff; font-weight: 600; letter-spacing: .3px; }

/* header 里的电话按钮 */
.header-tel {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #fff; font-size: 15px; font-weight: 600;
  padding: 7px 16px; border-radius: 999px; white-space: nowrap;
}
.header-tel:hover { background: var(--accent-dark); color: #fff; }

/* 移动端底部固定电话 */
.tel-fixed { display: none; }

@media (max-width: 720px) {
  body { padding-bottom: 58px; }
  .site-header .container { height: auto; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; gap: 8px; }
  .site-nav { gap: 12px; flex-wrap: wrap; }
  .site-nav a { font-size: 13px; }
  .brand { font-size: 16px; }
  .tel-strip .container { justify-content: center; }
  .tel-strip .tel-strip-label { display: none; }
  .header-tel { display: none; }
  .tel-fixed {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    background: var(--accent); color: #fff; align-items: center; justify-content: center;
    gap: 6px; padding: 14px 12px; font-size: 16px; font-weight: 600;
  }
  .tel-fixed:hover { color: #fff; }
  .hero { padding: 44px 0; }
  .hero h1 { font-size: 25px; }
}