* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --bg: #f5f7f4;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: #ffffff;
  --text: #1f2a1f;
  --muted: #5f6d5f;
  --line: rgba(41, 82, 51, 0.12);
  --accent: #4d8b55;
  --accent-strong: #2f6b38;
  --shadow: 0 18px 40px rgba(35, 49, 36, 0.08);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(132, 191, 133, 0.16), transparent 24%),
    linear-gradient(180deg, #fbfcfa 0%, var(--bg) 100%);
  color: var(--text);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

.shell {
  min-height: 100vh;
  padding: 32px 0 56px;
}

.hero,
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 28px;
  margin-bottom: 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(77, 139, 85, 0.1);
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0 0 12px;
  line-height: 1.25;
}

h1 {
  font-size: clamp(32px, 5vw, 44px);
}

h2 {
  font-size: 24px;
  margin-top: 28px;
}

h3 {
  font-size: 18px;
  margin-top: 20px;
}

p,
li {
  color: var(--muted);
  line-height: 1.75;
  font-size: 16px;
}

ul {
  padding-left: 20px;
}

.lead {
  font-size: 18px;
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  padding: 20px;
}

.card h3 {
  margin-top: 0;
}

.meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

.button.secondary {
  background: rgba(77, 139, 85, 0.1);
  color: var(--accent-strong);
}

.doc {
  padding: 28px;
}

.doc header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.doc .effective-date {
  color: var(--muted);
  font-size: 14px;
}

.notice {
  margin-top: 20px;
  padding: 14px 16px;
  border-left: 4px solid var(--accent);
  background: rgba(77, 139, 85, 0.08);
  color: var(--muted);
  border-radius: 8px;
}

.footer {
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(31, 42, 31, 0.06);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
}

@media (max-width: 640px) {
  .shell {
    padding-top: 20px;
  }

  .hero,
  .doc,
  .card {
    padding: 20px;
  }
}