/* 记了么官网样式：保持静态、轻量、便于长期维护 */
:root {
  --ink: #1f2933;
  --muted: #5f6874;
  --line: #dce2e9;
  --bg: #f7f9fb;
  --white: #ffffff;
  --brand: #166f56;
  --brand-dark: #10553f;
  --accent: #c6542e;
  --soft: #eaf4ef;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

a { color: var(--brand); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 860px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}
.brand-name { font-size: 19px; font-weight: 700; }
.brand-name small { display: block; font-size: 12px; color: var(--muted); font-weight: 500; }
.nav { display: flex; gap: 22px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.nav a:hover { color: var(--brand-dark); }

.hero {
  padding: 76px 0;
  background: linear-gradient(135deg, #ffffff 0%, #eef5f1 58%, #f6efe9 100%);
  border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-weight: 700; letter-spacing: 0; }
h1 { margin: 0 0 18px; font-size: 46px; line-height: 1.18; }
.lead { margin: 0; max-width: 640px; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.primary-button, .ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 6px;
  font-size: 16px;
}
.primary-button { background: var(--brand); color: #fff; }
.ghost-button { border: 1px solid var(--brand); color: var(--brand); text-decoration: none; }

.hero-panel { display: grid; gap: 14px; }
.preview-card {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(31, 41, 51, .06);
}
.preview-card span { color: var(--accent); font-size: 13px; font-weight: 700; }
.preview-card strong { display: block; margin: 4px 0 4px; font-size: 18px; }
.preview-card p { margin: 0; color: var(--muted); font-size: 14px; }

.section { padding: 70px 0; }
.section.muted { background: #fff; border-block: 1px solid var(--line); }
.section-head { max-width: 680px; margin-bottom: 34px; }
.section-head h2 { margin: 0 0 10px; font-size: 31px; }
.section-head p { margin: 0; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.card h2, .card h3 { margin: 0 0 12px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }

.fact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.fact-grid div { padding: 20px; border-radius: 6px; background: var(--soft); }
.fact-grid span { display: block; color: var(--muted); font-size: 13px; }
.fact-grid strong { display: block; margin-top: 5px; overflow-wrap: anywhere; }

.faq { display: grid; gap: 12px; }
details { padding: 18px 20px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 12px 0 0; color: var(--muted); }

.legal-page { padding: 68px 0 76px; }
.legal-page h1 { font-size: 36px; }
.legal-meta { margin: -8px 0 28px; color: var(--muted); }
.legal-page h2 { margin: 32px 0 10px; font-size: 21px; }
.legal-page p { color: var(--muted); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 8px; }
.contact-grid dl { margin: 0; }
.contact-grid div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.contact-grid dt { color: var(--muted); }
.contact-grid dd { margin: 0; overflow-wrap: anywhere; }
.notice { margin-top: 24px; padding: 22px; border-left: 4px solid var(--accent); background: #fff8f4; }
.notice h2 { margin-top: 0; }

.site-footer { padding: 42px 0 28px; background: #182430; color: #fff; }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,.18); }
.footer-inner p { margin: 6px 0 0; color: #c9d1d9; }
.footer-inner nav { display: flex; align-items: center; gap: 20px; }
.footer-inner a { color: #fff; text-decoration: none; }
.legal-line { padding-top: 20px; color: #aab4bf; font-size: 14px; text-align: center; }
.legal-line a { color: #cfd8e0; }
.legal-line a:hover { color: #fff; }

@media (max-width: 900px) {
  .header-inner { min-height: 64px; }
  .nav { gap: 12px; }
  .nav a { font-size: 14px; }
  .hero { padding: 52px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  h1 { font-size: 34px; }
  .lead { font-size: 16px; }
  .grid, .fact-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .container { padding: 0 16px; }
  .header-inner { flex-direction: column; align-items: flex-start; padding: 14px 0; gap: 10px; }
  .nav { flex-wrap: wrap; }
  h1 { font-size: 29px; }
  .grid, .fact-grid { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .actions .primary-button, .actions .ghost-button { width: 100%; }
  .contact-grid div { grid-template-columns: 1fr; padding: 8px 0; }
  .footer-inner { flex-direction: column; }
}