:root {
  color-scheme: light;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #252821;
  background: #eee9dc;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  line-height: 1.75;
  background:
    linear-gradient(rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.22)),
    repeating-linear-gradient(
      0deg,
      rgba(77, 67, 48, 0.025) 0,
      rgba(77, 67, 48, 0.025) 1px,
      transparent 1px,
      transparent 5px
    ),
    #eee9dc;
}

a {
  color: #8c351f;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #b6482b;
}

.site-header {
  border-bottom: 1px solid rgba(45, 43, 35, 0.22);
  background: rgba(238, 233, 220, 0.94);
}

.site-header__inner,
.document,
.site-footer {
  width: min(100% - 32px, 860px);
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
}

.brand {
  color: #252821;
  font-size: 0.98rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.9rem;
}

.document {
  margin-block: 34px 56px;
  padding: clamp(24px, 5vw, 56px);
  border: 1px solid rgba(45, 43, 35, 0.2);
  border-radius: 10px;
  background: rgba(250, 248, 241, 0.92);
  box-shadow: 0 14px 38px rgba(64, 55, 40, 0.1);
}

.eyebrow {
  margin: 0 0 6px;
  color: #8c351f;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: #1f211d;
  line-height: 1.35;
}

h1 {
  margin: 0;
  font-size: clamp(1.9rem, 6vw, 3.15rem);
  letter-spacing: -0.035em;
}

h2 {
  margin: 2.3em 0 0.7em;
  padding-bottom: 0.35em;
  border-bottom: 1px solid rgba(45, 43, 35, 0.16);
  font-size: clamp(1.2rem, 4vw, 1.55rem);
}

h3 {
  margin: 1.7em 0 0.35em;
  font-size: 1.03rem;
}

p,
li {
  font-size: 0.98rem;
}

ul,
ol {
  padding-left: 1.45em;
}

li + li {
  margin-top: 0.45em;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 20px 0 0;
  color: #666154;
  font-size: 0.88rem;
}

.notice {
  margin: 28px 0;
  padding: 18px 20px;
  border-left: 4px solid #8c351f;
  background: #f2e8d9;
}

.notice strong {
  color: #702814;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 26px 0;
}

.summary-card,
.document-link {
  border: 1px solid rgba(45, 43, 35, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.48);
}

.summary-card {
  padding: 18px;
}

.summary-card h3 {
  margin-top: 0;
}

.document-list {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.document-link {
  display: block;
  padding: 20px;
  color: #252821;
  text-decoration: none;
}

.document-link:hover {
  border-color: #8c351f;
  color: #252821;
  transform: translateY(-1px);
}

.document-link strong,
.document-link span {
  display: block;
}

.document-link strong {
  margin-bottom: 5px;
  font-size: 1.12rem;
}

.document-link span {
  color: #666154;
  font-size: 0.92rem;
}

.data-table {
  width: 100%;
  margin: 18px 0;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 12px;
  border: 1px solid rgba(45, 43, 35, 0.18);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: #ece5d7;
}

.table-scroll {
  overflow-x: auto;
}

.site-footer {
  padding-bottom: 36px;
  color: #716b5f;
  font-size: 0.82rem;
  text-align: center;
}

@media (max-width: 640px) {
  .site-header__inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 14px;
  }

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

  .document {
    width: min(100% - 20px, 860px);
    margin-top: 18px;
    padding-inline: 20px;
  }

  .data-table {
    min-width: 640px;
  }
}