/* 文档页：浅色阅读排版，与原型方案页的蓝紫品牌色保持一致 */
:root {
  --bg: #f5f6fa;
  --paper: #ffffff;
  --text: #1b2333;
  --text-2: #3d4759;
  --text-3: #7a8499;
  --line: #e4e7ef;
  --line-2: #eef0f5;
  --accent: #4b5cf0;
  --accent-2: #8b5cff;
  --accent-soft: #eef0ff;
  --grad: linear-gradient(135deg, #3d7bff, #8b5cff);
  --ok: #16a34a;
  --must: #dc2626;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  background: var(--bg); color: var(--text);
  font: 16px/1.85 -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }

/* 顶栏 */
.bar { position: sticky; top: 0; z-index: 10; background: rgba(10, 14, 26, .94); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.bar-in { max-width: 1240px; margin: 0 auto; height: 64px; padding: 0 24px; display: flex; align-items: center; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; flex: none; }
.mark { width: 34px; height: 34px; border-radius: 11px; background: var(--grad); display: grid; place-items: center; }
.mark svg { width: 20px; height: 20px; }
.logo-txt b { display: block; font-size: 15px; line-height: 1.3; letter-spacing: .5px; }
.logo-txt small { display: block; font-size: 11px; line-height: 1.3; color: #8f9bb8; letter-spacing: 1px; }
.tabs { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a { flex: none; height: 36px; padding: 0 14px; border-radius: 10px; display: flex; align-items: center; font-size: 14px; color: #aeb8d2; }
.tabs a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.tabs a.on { color: #fff; font-weight: 600; background: rgba(110, 120, 255, .22); box-shadow: inset 0 0 0 1px rgba(140, 150, 255, .35); }
.cta { flex: none; height: 36px; padding: 0 16px; border-radius: 18px; display: flex; align-items: center; font-size: 13px; font-weight: 600; color: #fff; background: var(--grad); }

/* 版式 */
.layout { max-width: 1240px; margin: 0 auto; padding: 32px 24px 40px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; align-items: start; }
.toc { position: sticky; top: 96px; max-height: calc(100vh - 120px); overflow: auto; padding: 4px 0; }
.toc-title { font-size: 12px; font-weight: 700; color: var(--text-3); letter-spacing: 2px; margin-bottom: 10px; }
.toc a { display: block; font-size: 13.5px; line-height: 1.5; color: var(--text-2); padding: 6px 12px; border-left: 2px solid var(--line); }
.toc a:hover { color: var(--accent); border-left-color: var(--accent); background: var(--accent-soft); }
.toc a.lv3 { padding-left: 24px; font-size: 13px; color: var(--text-3); }
.toc-m { display: none; }
.doc { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: 48px 56px 40px; max-width: 900px; box-shadow: 0 20px 50px -30px rgba(20, 30, 60, .25); }

/* 正文 */
.doc h1 { font-size: 32px; line-height: 1.35; font-weight: 800; letter-spacing: .5px; margin-bottom: 20px; }
.doc h2 { font-size: 22px; line-height: 1.45; font-weight: 700; margin: 44px 0 16px; padding-top: 28px; border-top: 1px solid var(--line-2); display: flex; align-items: center; gap: 10px; }
.doc h2::before { content: ""; width: 5px; height: 20px; border-radius: 3px; background: var(--grad); flex: none; }
.doc h1 + h2, .doc blockquote + h2 { border-top: 0; padding-top: 0; margin-top: 32px; }
.doc h3 { font-size: 18px; line-height: 1.5; font-weight: 700; margin: 30px 0 12px; }
.doc .anchor { order: 9; margin-left: 4px; font-weight: 400; color: var(--text-3); opacity: 0; transition: opacity .15s; }
.doc h2:hover .anchor, .doc h3:hover .anchor { opacity: 1; }
.doc h3 .anchor { margin-right: 6px; }
.doc p { color: var(--text-2); margin: 12px 0; }
.doc strong { color: var(--text); font-weight: 700; }
.doc ul, .doc ol { margin: 12px 0 12px 24px; color: var(--text-2); }
.doc li { margin: 6px 0; padding-left: 4px; }
.doc li::marker { color: var(--accent); }
.doc li > ul, .doc li > ol { margin-top: 6px; margin-bottom: 6px; }
.doc blockquote { margin: 0 0 24px; padding: 14px 18px; border-radius: 12px; background: var(--accent-soft); border-left: 4px solid var(--accent); color: var(--text-2); font-size: 14.5px; }
.doc blockquote p { margin: 4px 0; }
.doc code { font: 13.5px/1.6 "Cascadia Mono", "JetBrains Mono", Consolas, "SFMono-Regular", Menlo, monospace; background: #f1f3f8; border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; color: #3b3f9e; }
.doc pre { margin: 16px 0; padding: 20px 22px; border-radius: 14px; background: #0f1628; overflow: auto; }
.doc pre code { background: none; border: 0; padding: 0; color: #d6def5; font-size: 13.5px; line-height: 1.75; font-family: "Cascadia Mono", Consolas, "Microsoft YaHei UI", monospace; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
.doclink { font-weight: 600; border-bottom: 1px solid rgba(75, 92, 240, .3); }
.doclink:hover { border-bottom-color: var(--accent); }

/* 表格 */
.table-wrap { margin: 16px 0 20px; overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 14.5px; line-height: 1.7; }
.doc th { background: #f4f6fb; color: var(--text); font-weight: 700; text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.doc td { padding: 12px 16px; border-bottom: 1px solid var(--line-2); color: var(--text-2); vertical-align: top; min-width: 88px; }
.doc tr:last-child td { border-bottom: 0; }
.doc tbody tr:nth-child(even) td { background: #fafbfd; }
.doc tbody tr:hover td { background: #f3f5ff; }
.doc td:first-child { color: var(--text); font-weight: 600; }
.ok { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: #e7f6ec; color: var(--ok); font-size: 12px; font-weight: 800; margin-right: 4px; }
.must { display: inline-block; vertical-align: 2px; font-size: 11px; font-weight: 700; line-height: 1; padding: 4px 8px; border-radius: 6px; background: #fdecec; color: var(--must); letter-spacing: 1px; }

/* 翻页与页脚 */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line-2); }
.pager a { display: block; padding: 14px 18px; border-radius: 14px; border: 1px solid var(--line); font-weight: 600; color: var(--text); }
.pager a:hover { border-color: var(--accent); background: var(--accent-soft); }
.pager small { display: block; font-size: 12px; font-weight: 400; color: var(--text-3); }
.pager .next { text-align: right; }
.foot { text-align: center; font-size: 12px; color: var(--text-3); padding: 0 24px 40px; }

@media (max-width: 1080px) {
  .layout { grid-template-columns: minmax(0, 1fr); padding-top: 20px; }
  .toc { display: none; }
  .toc-m { display: block; margin: 0 0 24px; border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; background: #fafbfd; }
  .toc-m summary { cursor: pointer; font-size: 14px; font-weight: 600; color: var(--text-2); }
  .toc-m a { display: block; font-size: 14px; padding: 6px 0; color: var(--text-2); }
  .toc-m a.lv3 { padding-left: 16px; color: var(--text-3); }
  .doc { margin: 0 auto; }
}
@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .bar-in { height: auto; padding: 10px 14px 8px; flex-wrap: wrap; gap: 8px 12px; }
  .logo-txt small { display: none; }
  .tabs { order: 3; flex-basis: 100%; margin: 0 -14px; padding: 0 10px; }
  .tabs a { height: 32px; padding: 0 12px; font-size: 13.5px; }
  .cta { margin-left: auto; height: 32px; padding: 0 12px; font-size: 12.5px; }
  .layout { padding: 14px 10px 28px; }
  .doc { padding: 26px 18px 26px; border-radius: 16px; }
  .doc h1 { font-size: 25px; }
  .doc h2 { font-size: 19.5px; margin-top: 34px; padding-top: 22px; }
  .doc h3 { font-size: 17px; }
  .doc table { font-size: 13.5px; }
  .doc th, .doc td { padding: 10px 12px; }
  .doc pre { padding: 14px; margin: 12px -4px; }
  .doc pre code { font-size: 12px; }
  .pager { grid-template-columns: 1fr; }
}

/* 窄屏：表格改为卡片，每个单元格前显示列名 */
@media (max-width: 720px) {
  .table-wrap { border: 0; border-radius: 0; overflow: visible; margin: 12px 0 16px; }
  .doc table, .doc tbody, .doc tr, .doc td { display: block; width: 100%; }
  .doc thead { display: none; }
  .doc tr { border: 1px solid var(--line); border-radius: 14px; padding: 8px 0; margin-bottom: 10px; background: #fff; box-shadow: 0 6px 16px -12px rgba(20, 30, 60, .25); }
  .doc tbody tr:nth-child(even) td, .doc tbody tr:hover td { background: none; }
  .doc td { display: grid; grid-template-columns: 5.6em minmax(0, 1fr); gap: 10px; border: 0; padding: 6px 14px; min-width: 0; font-size: 14px; }
  .doc td::before { content: attr(data-label); color: var(--text-3); font-size: 12.5px; font-weight: 400; line-height: 1.9; }
  .doc td[data-label=""] { grid-template-columns: minmax(0, 1fr); }
  .doc td[data-label=""]::before { display: none; }
}