/* 法务 / 政策类静态文档统一样式 —— 与官网 (index.html) 品牌一致, 但自包含不依赖 Tailwind。
   由 build.sh + _template.html 生成的页面引用。 */

:root {
  --brand-from: #2563eb;   /* blue-600  */
  --brand-to:   #4f46e5;   /* indigo-600 */
  --ink:        #1f2937;   /* gray-800  */
  --ink-soft:   #4b5563;   /* gray-600  */
  --line:       #e5e7eb;   /* gray-200  */
  --bg-soft:    #f9fafb;   /* gray-50   */
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans",
               "PingFang SC", "Microsoft YaHei", Helvetica, Arial, sans-serif;
  line-height: 1.75;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 顶部条 ---------- */
.legal-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.legal-header .brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.legal-header .brand img { width: 32px; height: 32px; }
.legal-header .brand span {
  font-size: 20px; font-weight: 700;
  background: linear-gradient(to right, var(--brand-from), var(--brand-to));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.legal-header .back { font-size: 14px; color: var(--ink-soft); text-decoration: none; }
.legal-header .back:hover { color: var(--brand-from); }

/* ---------- 正文容器 ---------- */
.legal-doc {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}
/* 页面标题 = md 自带的 # (h1) */
.legal-doc h1 {
  font-size: 30px; font-weight: 800; line-height: 1.3;
  margin: 0 0 28px; padding-bottom: 18px;
  border-bottom: 2px solid var(--line);
}

/* 章节标题: md 内 ## → h2, ### → h3 (不再 shift 层级) */
.legal-doc h2 { font-size: 22px; font-weight: 700; margin: 40px 0 14px; color: var(--ink); }
.legal-doc h3 { font-size: 18px; font-weight: 700; margin: 28px 0 10px; color: var(--ink); }
.legal-doc h4 { font-size: 16px; font-weight: 700; margin: 22px 0 8px; }

.legal-doc p  { margin: 12px 0; color: var(--ink-soft); }
.legal-doc strong { color: var(--ink); font-weight: 700; }

.legal-doc ul, .legal-doc ol { margin: 12px 0; padding-left: 24px; color: var(--ink-soft); }
.legal-doc li { margin: 6px 0; }

.legal-doc a { color: var(--brand-from); text-decoration: underline; text-underline-offset: 2px; }

/* 表格 (如隐私政策附录的第三方 SDK 清单) */
.legal-doc table {
  width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px;
  display: block; overflow-x: auto;            /* 窄屏可横向滚动 */
}
.legal-doc th, .legal-doc td {
  border: 1px solid var(--line); padding: 8px 12px; text-align: left; vertical-align: top;
}
.legal-doc thead th { background: var(--bg-soft); font-weight: 700; color: var(--ink); }

/* ---------- 页脚 ---------- */
.legal-footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px; text-align: center; color: #6b7280; font-size: 13px;
}
.legal-footer .links { margin-bottom: 10px; }
.legal-footer .links a { color: #6b7280; text-decoration: none; margin: 0 12px; }
.legal-footer .links a:hover { color: var(--brand-from); }
.legal-footer a { color: inherit; }

@media (max-width: 640px) {
  .legal-doc { padding: 32px 18px 56px; }
  .legal-doc .doc-title { font-size: 24px; }
}