:root {
  color-scheme: light;
  --page-bg: #f6f7f4;
  --surface: #ffffff;
  --surface-soft: #eef4f1;
  --ink: #1f2a2e;
  --muted: #5d6a70;
  --line: #d7ded9;
  --accent: #2f6f63;
  --accent-strong: #164f48;
  --warning-bg: #fff4dc;
  --warning-line: #d8a93d;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--page-bg);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    "Noto Sans CJK SC",
    Arial,
    sans-serif;
  line-height: 1.72;
  background:
    linear-gradient(180deg, rgba(47, 111, 99, 0.1), rgba(246, 247, 244, 0) 360px),
    var(--page-bg);
}

a {
  color: var(--accent-strong);
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}

a:focus-visible {
  outline: 3px solid rgba(47, 111, 99, 0.35);
  outline-offset: 4px;
}

.page-shell {
  width: min(100% - 40px, 1040px);
  margin: 0 auto;
  padding: 56px 0 32px;
}

.hero {
  padding: 44px 0 34px;
  border-bottom: 1px solid var(--line);
}

.site-kicker {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 15px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.35;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.4;
}

p {
  margin: 0;
}

.hero-summary {
  max-width: 760px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
}

.content-section,
.notice {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.notice {
  color: var(--ink);
}

.notice-strong {
  margin-top: 24px;
  padding: 22px 24px;
  border: 1px solid var(--warning-line);
  border-radius: 8px;
  background: var(--warning-bg);
}

.notice-strong h2 {
  color: #6a4a00;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.section-heading p {
  max-width: 380px;
  color: var(--muted);
  font-size: 15px;
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.note-item {
  min-height: 154px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.note-item h3 {
  color: var(--accent-strong);
}

.note-item p {
  color: #3c484d;
  font-size: 15px;
}

.source-line {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  width: min(100% - 40px, 1040px);
  margin: 0 auto;
  padding: 28px 0 42px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.site-footer p + p {
  margin-top: 8px;
}

.record-number {
  color: var(--ink);
  font-weight: 700;
}

@media (max-width: 768px) {
  .page-shell {
    width: min(100% - 28px, 720px);
    padding-top: 30px;
  }

  .hero,
  .content-section,
  .notice {
    padding: 24px 0;
  }

  .notice-strong {
    padding: 20px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 22px;
  }

  .hero-summary {
    font-size: 16px;
  }

  .section-heading {
    display: block;
  }

  .section-heading p {
    max-width: none;
    margin-top: 8px;
  }

  .note-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    width: min(100% - 28px, 720px);
  }
}

@media (max-width: 375px) {
  .page-shell {
    width: min(100% - 20px, 355px);
    padding-top: 20px;
  }

  .hero,
  .content-section,
  .notice {
    padding: 20px 0;
  }

  .notice-strong {
    padding: 18px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 20px;
  }

  .note-item {
    min-height: auto;
    padding: 16px;
  }

  .site-footer {
    width: min(100% - 20px, 355px);
    padding-bottom: 30px;
  }
}

@media (min-width: 1200px) {
  .page-shell {
    padding-top: 72px;
  }

  .hero {
    padding-top: 52px;
  }
}