:root {
  --legal-text: #1f2328;
  --legal-text-secondary: #5a6472;
  --legal-border: #d9dee5;
  --legal-primary: #0b6bcb;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: #ffffff;
  color: var(--legal-text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.01em;
}

a {
  color: var(--legal-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.legal-shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 20px 72px;
}

/* 协议正文：纯白文档风格，不使用卡片背景、阴影与圆角。 */
.legal-card {
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.legal-header {
  padding: 0 0 28px;
  border-bottom: 1px solid var(--legal-border);
}

.legal-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--legal-text-secondary);
  margin-bottom: 14px;
}

/* 品牌渐变小圆点仅在营销页面使用，协议页隐藏，保持纯文字版式。 */
.legal-brand-dot {
  display: none;
}

.legal-header h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.legal-meta {
  margin-top: 12px;
  font-size: 13px;
  color: var(--legal-text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.legal-body {
  padding: 32px 0 48px;
}

/* 目录：纯文本两栏，无底色、无外框。 */
.toc {
  padding: 0 0 20px;
  border-bottom: 1px solid var(--legal-border);
  margin-bottom: 32px;
}

.toc-title {
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 14px;
}

.toc ol {
  margin: 0;
  padding-left: 20px;
  columns: 2;
  column-gap: 32px;
  font-size: 13.5px;
}

.toc li {
  break-inside: avoid;
  padding: 2px 0;
}

@media (max-width: 640px) {
  .toc ol {
    columns: 1;
  }
}

.legal-body h2 {
  margin: 42px 0 14px;
  font-size: 19px;
  line-height: 1.5;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--legal-border);
}

.legal-body h3 {
  margin: 26px 0 10px;
  font-size: 16px;
}

.legal-body p {
  margin: 12px 0;
}

.legal-body ul,
.legal-body ol {
  padding-left: 24px;
  margin: 12px 0;
}

.legal-body li {
  margin: 8px 0;
}

.legal-body strong {
  font-weight: 650;
}

/* 双清单入口：纯文本链接，不使用卡片底色或竖线。 */
.related-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0 30px;
}

@media (max-width: 640px) {
  .related-links {
    grid-template-columns: 1fr;
  }
}

.related-link {
  display: block;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--legal-text-secondary);
}

.related-link:hover {
  text-decoration: none;
}

.related-link strong {
  display: block;
  margin-bottom: 2px;
  color: var(--legal-primary);
}

.related-link:hover strong {
  text-decoration: underline;
}

/* 清单表格：完整网格边框的正式表格，表头加粗、无背景填充。 */
.table-wrap {
  overflow-x: auto;
  margin: 16px 0 28px;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.7;
  min-width: 680px;
}

.legal-table th,
.legal-table td {
  border: 1px solid var(--legal-border);
  padding: 10px 12px;
  vertical-align: top;
  text-align: left;
}

.legal-table thead th {
  background: transparent;
  font-weight: 700;
  white-space: nowrap;
}

.legal-table td:first-child {
  font-weight: 650;
  white-space: normal;
}

.legal-table .note {
  color: var(--legal-text-secondary);
  font-size: 12.5px;
  font-weight: 400;
}

.legal-footer {
  padding: 22px 0 8px;
  border-top: 1px solid var(--legal-border);
  font-size: 12.5px;
  color: var(--legal-text-secondary);
  line-height: 2;
}

.legal-footer a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
}

@media print {
  body {
    background: #fff;
    color: #111;
    font-size: 12px;
    line-height: 1.7;
  }
  .legal-shell {
    max-width: none;
    padding: 0;
  }
  .legal-card {
    border: none;
    box-shadow: none;
  }
  .legal-body {
    padding: 16px 0;
  }
  .back-home {
    display: none;
  }
}