:root {
  --ink: #17372f;
  --muted: #647b74;
  --paper: #f7faf5;
  --surface: #ffffff;
  --brand: #277a67;
  --brand-dark: #17594c;
  --accent: #dfb564;
  --line: #dce8e2;
  --shadow: 0 22px 54px rgba(28, 79, 66, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(220, 232, 226, .82); background: rgba(247, 250, 245, .92); backdrop-filter: blur(16px); }
.header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .08em; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 14px 6px 14px 6px; color: white; background: linear-gradient(145deg, var(--brand), var(--brand-dark)); box-shadow: 0 8px 20px rgba(39, 122, 103, .24); }
.nav { display: flex; gap: 28px; color: var(--muted); font-size: 14px; }
.nav a:hover, .back-link:hover, .footer-links a:hover { color: var(--brand); }
.back-link { color: var(--muted); }
.hero { min-height: 570px; padding: 86px 7%; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 46px; overflow: hidden; border-radius: 0 0 38px 38px; background: linear-gradient(145deg, #edf7f1 0%, #f9f5e7 100%); box-shadow: var(--shadow); }
.eyebrow, .section-label { margin: 0 0 12px; color: var(--brand); font-size: 13px; font-weight: 800; letter-spacing: .18em; }
.hero h1 { margin: 0; font-family: "STKaiti", "KaiTi", serif; font-size: clamp(52px, 7vw, 84px); line-height: 1.08; font-weight: 700; letter-spacing: .04em; }
.lead { max-width: 610px; margin: 28px 0 0; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { min-width: 132px; padding: 12px 24px; text-align: center; color: white; border: 1px solid var(--brand); border-radius: 999px; background: var(--brand); font-weight: 700; box-shadow: 0 10px 24px rgba(39, 122, 103, .18); }
.button.secondary { color: var(--brand-dark); background: transparent; box-shadow: none; }
.hero-art { position: relative; min-height: 360px; }
.sun { position: absolute; top: 42px; right: 76px; width: 92px; height: 92px; border-radius: 50%; background: linear-gradient(145deg, #f3d894, var(--accent)); box-shadow: 0 0 0 22px rgba(223, 181, 100, .12); }
.ripple { position: absolute; left: 2%; right: 2%; border: 3px solid rgba(39, 122, 103, .26); border-radius: 50%; transform: rotate(-7deg); }
.ripple-one { top: 180px; height: 86px; }
.ripple-two { top: 234px; left: 13%; right: -5%; height: 108px; }
.leaf { position: absolute; width: 58px; height: 118px; border-radius: 100% 0 100% 0; background: linear-gradient(160deg, #68aa84, var(--brand)); transform: rotate(38deg); }
.leaf-one { left: 22%; top: 72px; }
.leaf-two { left: 38%; top: 112px; transform: rotate(76deg) scale(.72); opacity: .74; }
.section { padding: 104px 0 86px; }
.section h2, .notice h2, .document-page h1 { margin: 0; font-family: "STKaiti", "KaiTi", serif; font-size: clamp(36px, 5vw, 52px); line-height: 1.2; }
.section-intro { max-width: 680px; color: var(--muted); }
.cards { margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { padding: 30px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 12px 34px rgba(30, 75, 63, .06); }
.card > span { color: var(--accent); font-weight: 800; }
.card h3 { margin: 26px 0 8px; font-size: 21px; }
.card p { margin: 0; color: var(--muted); }
.notice { margin-bottom: 94px; padding: 42px 48px; display: grid; grid-template-columns: .7fr 1.3fr; gap: 40px; align-items: center; border-radius: 28px; color: white; background: linear-gradient(135deg, var(--brand-dark), var(--brand)); }
.notice .section-label { color: #f1d99b; }
.notice p { margin: 0; color: rgba(255, 255, 255, .82); }
.site-footer { padding: 48px 0 26px; border-top: 1px solid var(--line); background: #eff5f1; }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; }
.footer-inner strong { font-size: 20px; }
.footer-inner p { margin: 4px 0; color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; color: var(--muted); font-size: 14px; }
.record-line { margin-top: 30px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.record-line a:hover { color: var(--brand); }
.document-page { max-width: 820px; min-height: calc(100vh - 220px); padding-top: 72px; padding-bottom: 88px; }
.document-date { color: var(--muted); }
.document-page section { margin-top: 34px; padding: 26px 30px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.document-page section h2 { margin: 0 0 10px; font-size: 19px; }
.document-page section p { margin: 0; color: var(--muted); }
.document-page section a { color: var(--brand); }

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, 1120px); }
  .nav { display: none; }
  .hero { min-height: auto; padding: 58px 26px 42px; grid-template-columns: 1fr; }
  .hero-art { min-height: 245px; }
  .sun { right: 42px; }
  .cards { grid-template-columns: 1fr; }
  .notice { padding: 32px 26px; grid-template-columns: 1fr; gap: 20px; }
  .footer-inner, .record-line { flex-direction: column; }
  .document-page { padding-top: 48px; }
  .document-page section { padding: 22px; }
}