:root {
  color-scheme: light;
  --bg: #f6f4ee;
  --panel: #ffffff;
  --panel-2: #f1ebe1;
  --text: #1f1a17;
  --muted: #6e6258;
  --accent: #7d4f24;
  --border: #d9cbb7;
  --shadow: 0 12px 30px rgba(58, 40, 24, 0.08);
}

html {
  background: linear-gradient(180deg, #faf7f2 0%, #f3ede3 100%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.page-body {
  margin: 0;
  padding: 32px 20px 48px;
  color: var(--text);
  font: 16px/1.6 "Segoe UI", "Microsoft YaHei", sans-serif;
}

.page-title,
.rule-line-title,
.rule-title,
.rule-alias,
.rule-author,
.rule-doc-text,
.rule-doc,
.rule-error {
  margin: 0;
}

.page-title {
  max-width: 1100px;
  margin: 0 auto 8px;
  font-size: 2rem;
  line-height: 1.2;
}

.rule-app {
  max-width: 1100px;
  margin: 0 auto;
}

.rule-section {
  margin-top: 28px;
}

.rule-line-title {
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  font-size: 1.25rem;
}

.rule-list {
  list-style: none;
  padding: 0;
  margin: 0;
  column-width: 320px;
  column-gap: 16px;
}

.rule-item {
  display: inline-block;
  width: 100%;
  margin: 0 0 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 16px 18px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.rule-title {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--accent);
}

.rule-alias,
.rule-author {
  margin-top: 6px;
  color: var(--text);
  word-break: break-word;
}

.rule-doc {
  padding: 10px 12px;
  margin-top: 10px;
  background: var(--panel-2);
  border-radius: 10px;
  color: var(--muted);
}

.rule-doc-text {
  color: var(--muted);
  word-break: break-word;
}

.rule-image {
  display: block;
  max-width: min(100%, 420px);
  margin-top: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
}

.rule-error {
  color: #b2291f;
  font-weight: 600;
}

@media (max-width: 640px) {
  .page-body {
    padding: 20px 14px 36px;
    font-size: 15px;
  }

  .rule-section {
    margin-top: 20px;
  }

  .rule-list {
    column-count: 1;
    column-gap: 0;
  }

  .rule-item {
    border-radius: 14px;
    padding: 15px 15px 14px;
    margin-bottom: 14px;
  }

  .rule-image {
    max-width: 100%;
  }
}

@media (min-width: 1040px) {
  .rule-list {
    column-width: 360px;
    column-gap: 20px;
  }

  .rule-item {
    padding: 18px 20px 16px;
  }
}