/* 淄博康海技术服务 · 企业官网(备案合规门面) 共享样式 */
:root {
  --ink: #16202e;
  --ink-soft: #48566a;
  --muted: #7c899b;
  --line: #e6ebf2;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --brand: #1f5fae;
  --brand-deep: #17456f;
  --accent: #2b8a8a;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(22, 32, 46, .04), 0 12px 32px -18px rgba(22, 32, 46, .22);
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  letter-spacing: .01em;
}
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-deep); }
img { max-width: 100%; display: block; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 18px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand .mark {
  width: 34px; height: 34px; border-radius: 9px; flex: none;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 15px; letter-spacing: .02em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .28);
}
.nav-links { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--ink-soft); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--brand); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(900px 420px at 82% -8%, rgba(31, 95, 174, .08), transparent 60%),
    linear-gradient(180deg, var(--bg-soft), var(--bg));
  border-bottom: 1px solid var(--line);
}
.hero-inner { padding: 92px 0 84px; max-width: 760px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .12em;
  color: var(--brand); background: rgba(31, 95, 174, .08);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: 44px; line-height: 1.22; margin: 0 0 20px; font-weight: 800; color: var(--ink); letter-spacing: -.01em; }
.hero p { font-size: 18px; color: var(--ink-soft); margin: 0 0 34px; max-width: 620px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--brand); color: #fff; font-weight: 600; font-size: 15px;
  padding: 13px 26px; border-radius: 10px; border: 0; cursor: pointer;
  box-shadow: 0 10px 24px -12px rgba(31, 95, 174, .7); transition: transform .12s ease, background .12s ease;
}
.btn:hover { background: var(--brand-deep); color: #fff; transform: translateY(-1px); }

/* ---------- Sections ---------- */
section { padding: 76px 0; }
.section-head { max-width: 640px; margin: 0 0 46px; }
.section-head h2 { font-size: 30px; font-weight: 800; margin: 0 0 14px; letter-spacing: -.01em; }
.section-head p { color: var(--ink-soft); margin: 0; font-size: 16.5px; }
.bg-soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* about */
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: start; }
.about-grid p { color: var(--ink-soft); margin: 0 0 18px; }
.facts { display: grid; gap: 16px; }
.fact { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.fact .k { font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.fact .v { font-size: 16px; font-weight: 600; color: var(--ink); }

/* services */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; box-shadow: var(--shadow); transition: transform .14s ease, box-shadow .14s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 1px 2px rgba(22,32,46,.05), 0 22px 46px -22px rgba(22,32,46,.3); }
.card .ico {
  width: 46px; height: 46px; border-radius: 11px; margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(31,95,174,.12), rgba(43,138,138,.12));
  display: flex; align-items: center; justify-content: center;
}
.card .ico svg { width: 24px; height: 24px; stroke: var(--brand); }
.card h3 { font-size: 19px; margin: 0 0 10px; font-weight: 700; }
.card p { color: var(--ink-soft); margin: 0; font-size: 15px; }

/* pricing */
.price { margin-top: 18px; font-size: 22px; font-weight: 800; color: var(--brand); letter-spacing: -.01em; }
.price small { font-size: 13px; font-weight: 600; color: var(--muted); }
.pricing-note { margin: 34px auto 0; max-width: 720px; text-align: center; color: var(--ink-soft); font-size: 15px; }

/* contact */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-item { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-align: center; }
.contact-item .k { font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.contact-item .v { font-size: 17px; font-weight: 600; color: var(--ink); word-break: break-word; }

/* ---------- Footer ---------- */
.site-footer { background: #10192a; color: #aab6c9; padding: 46px 0 34px; font-size: 14px; }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 22px; margin-bottom: 26px; }
.footer-brand { color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 8px; }
.footer-brand + p { margin: 0; color: #8695ab; max-width: 380px; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; align-items: flex-start; }
.footer-links a { color: #aab6c9; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 22px; display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; justify-content: center; text-align: center; color: #7f8da3; }
.footer-bottom a { color: #9fb0c6; }
.footer-bottom a:hover { color: #fff; }
.footer-bottom .sep { color: #3a4761; }

/* ---------- Legal pages ---------- */
.legal { max-width: 820px; margin: 0 auto; padding: 56px 0 72px; }
.legal h1 { font-size: 32px; margin: 0 0 8px; font-weight: 800; }
.legal .updated { color: var(--muted); font-size: 14px; margin-bottom: 36px; }
.legal h2 { font-size: 20px; margin: 38px 0 12px; font-weight: 700; }
.legal p, .legal li { color: var(--ink-soft); }
.legal ul { padding-left: 20px; }
.legal li { margin-bottom: 8px; }
.back-link { display: inline-block; margin-bottom: 26px; color: var(--brand); font-size: 15px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero h1 { font-size: 34px; }
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .cards { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 18px; }
}
@media (max-width: 560px) {
  .nav-links { display: none; }
  .hero-inner { padding: 64px 0 56px; }
  .hero h1 { font-size: 28px; }
  section { padding: 56px 0; }
}