/* ============================================================
   DSM 使用文档 · 共享样式
   与产品主页（../index.html）共用同一设计语言
   ============================================================ */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-light: #fffbeb;
  --green: #10b981;
  --green-light: #ecfdf5;
  --red: #ef4444;
  --red-light: #fef2f2;
  --purple: #7c3aed;
  --purple-light: #ede9fe;
  --dark: #0f172a;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .15);
  --nav-h: 64px;
  --sidebar-w: 272px;
  --toc-w: 220px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.7;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; }
button { font-family: inherit; }

.container { width: min(1160px, 92%); margin: 0 auto; }
.docs-body { padding-top: var(--nav-h); }

/* ===================== 导航 ===================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-100);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 20px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: var(--gray-900); white-space: nowrap; }
.logo .logo-mark {
  width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; font-size: 13.5px; font-weight: 900;
}
.logo .logo-sub { font-size: 11px; font-weight: 500; color: var(--gray-500); display: block; line-height: 1.2; }
.logo .doc-badge {
  margin-left: 4px; padding: 2px 10px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-dark); font-size: 11.5px; font-weight: 700;
}
.nav-links { display: flex; align-items: center; gap: 22px; list-style: none; }
.nav-links a { color: var(--gray-700); font-size: 14.5px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--primary); }
.nav-cta { background: var(--primary); color: #fff !important; padding: 8px 18px; border-radius: 999px; font-weight: 600; transition: background .2s; }
.nav-cta:hover { background: var(--primary-dark); }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--gray-900); }
/* 语言切换 */
.lang-switch {
  display: inline-flex; align-items: center;
  background: #fff; border: 1px solid var(--gray-300); border-radius: 999px;
  padding: 6px 14px; font-size: 13px; font-weight: 600; color: var(--gray-700);
  cursor: pointer; transition: all .2s; white-space: nowrap; margin-left: auto;
}
.lang-switch:hover { border-color: var(--primary); color: var(--primary); }

/* ===================== 通用区块 ===================== */
.section { padding: 72px 0; }
.section-alt { background: var(--gray-50); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.section-head .tag {
  display: inline-block; padding: 4px 14px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-dark);
  font-size: 12.5px; font-weight: 600; letter-spacing: 1px; margin-bottom: 12px;
}
.section-head h2 { font-size: 30px; line-height: 1.3; margin-bottom: 10px; }
.section-head p { color: var(--gray-500); font-size: 15.5px; }

/* 图片占位符（与产品主页一致） */
.img-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 2px dashed var(--gray-400); border-radius: var(--radius);
  background: repeating-linear-gradient(45deg, #f8fafc, #f8fafc 12px, #eef2f7 12px, #eef2f7 24px);
  color: var(--gray-500); font-size: 14px; text-align: center; padding: 20px;
  min-height: 220px; gap: 10px; margin: 18px 0;
}
.img-placeholder .ph-icon { font-size: 40px; opacity: .6; }
.img-placeholder small { color: var(--gray-400); }

/* ===================== 文档首页 · Hero ===================== */
.home-hero { padding: 84px 0 60px; background:
  radial-gradient(900px 420px at 82% -20%, rgba(37, 99, 235, .10), transparent 60%),
  radial-gradient(700px 360px at -10% 40%, rgba(245, 158, 11, .07), transparent 60%),
  var(--white);
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary-dark);
  padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 20px;
}
.home-hero h1 { font-size: 42px; line-height: 1.25; letter-spacing: -.5px; margin-bottom: 14px; }
.home-hero h1 .grad {
  background: linear-gradient(90deg, var(--primary), #7c3aed);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.home-hero p.lead { font-size: 17px; color: var(--gray-500); max-width: 640px; margin: 0 auto 30px; }

/* 搜索框 */
.search-box {
  display: flex; align-items: center; max-width: 640px; margin: 0 auto 18px;
  background: #fff; border: 1.5px solid var(--gray-200); border-radius: 999px;
  padding: 6px 6px 6px 22px; box-shadow: var(--shadow);
  transition: border-color .2s, box-shadow .2s;
}
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 8px 24px rgba(37, 99, 235, .15); }
.search-box input { flex: 1; min-width: 0; border: none; outline: none; font-size: 15px; background: transparent; color: var(--gray-900); }
.search-box input::placeholder { color: var(--gray-400); }
.search-box button {
  flex-shrink: 0; border: none; background: var(--primary); color: #fff;
  font-size: 14.5px; font-weight: 600; padding: 11px 24px; border-radius: 999px; cursor: pointer;
  transition: background .2s;
}
.search-box button:hover { background: var(--primary-dark); }

.home-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.home-chip {
  background: #fff; border: 1px solid var(--gray-200); border-radius: 999px;
  padding: 7px 16px; font-size: 13.5px; color: var(--gray-600); transition: all .2s;
}
.home-chip:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }

/* ===================== 文档首页 · 分类卡片 ===================== */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cat-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius);
  padding: 26px 24px; color: var(--gray-900);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--gray-200); color: var(--gray-900); }
.cat-card .cc-icon {
  width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 16px; background: var(--primary-light);
}
.cat-card h3 { font-size: 17px; margin-bottom: 6px; }
.cat-card p { font-size: 13.5px; color: var(--gray-500); line-height: 1.7; flex: 1; }
.cat-card .cc-foot {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 16px; font-size: 13px; color: var(--gray-400);
}
.cat-card .cc-arrow { color: var(--primary); font-weight: 700; opacity: 0; transform: translateX(-4px); transition: all .2s; }
.cat-card:hover .cc-arrow { opacity: 1; transform: none; }

/* ===================== 文档首页 · 最近更新 ===================== */
.update-list {
  list-style: none; max-width: 860px; margin: 0 auto;
  background: #fff; border: 1px solid var(--gray-100); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.update-list li + li { border-top: 1px solid var(--gray-100); }
.update-list li a { display: flex; align-items: center; gap: 14px; padding: 16px 24px; color: inherit; }
.update-list li a:hover { background: var(--gray-50); color: inherit; }
.update-list .u-tag {
  flex-shrink: 0; font-size: 12px; font-weight: 600; padding: 3px 10px;
  border-radius: 999px; background: var(--primary-light); color: var(--primary-dark);
}
.update-list .u-title { flex: 1; min-width: 0; font-size: 14.5px; color: var(--gray-700); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.update-list .u-date { flex-shrink: 0; font-size: 12.5px; color: var(--gray-400); }

/* ===================== FAQ 折叠面板 ===================== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--gray-100); border-radius: 12px;
  margin-bottom: 12px; overflow: hidden; transition: border-color .2s;
}
.faq-item[open] { border-color: var(--gray-200); box-shadow: var(--shadow); }
.faq-item summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px;
  padding: 16px 20px; font-size: 15px; font-weight: 600; color: var(--gray-900);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "Q"; flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px;
  background: var(--primary-light); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800;
}
.faq-item summary .faq-plus { margin-left: auto; color: var(--gray-400); font-size: 18px; font-weight: 400; transition: transform .2s; }
.faq-item[open] summary .faq-plus { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 20px 16px 58px; font-size: 14.5px; color: var(--gray-600); line-height: 1.8; }

/* ===================== CTA ===================== */
.cta-box {
  background: linear-gradient(120deg, var(--primary), #7c3aed);
  border-radius: 20px; padding: 56px 48px; text-align: center; color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-box h2 { font-size: 30px; margin-bottom: 12px; }
.cta-box p { opacity: .92; max-width: 620px; margin: 0 auto 28px; font-size: 16px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px;
  border-radius: 999px; font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1.5px solid transparent; transition: all .2s;
}
.btn-white { background: #fff; color: var(--primary-dark); }
.btn-white:hover { transform: translateY(-2px); background: #f8fafc; }
.btn-ghost-light { border-color: rgba(255, 255, 255, .6); color: #fff; background: transparent; }
.btn-ghost-light:hover { border-color: #fff; transform: translateY(-2px); }

/* ===================== 文档正文 · 布局（侧栏 + 正文 + 目录） ===================== */
.docs-layout { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }

/* 左侧目录 */
.sidebar {
  position: sticky; top: var(--nav-h); height: calc(100vh - var(--nav-h));
  overflow-y: auto; padding: 24px 18px 40px 0;
  border-right: 1px solid var(--gray-100); scrollbar-width: thin;
}
.side-title {
  position: sticky; top: 0; background: #fff; z-index: 1;
  padding: 14px 14px 6px; font-size: 12px; font-weight: 700; letter-spacing: 1.5px;
  color: var(--gray-400); text-transform: uppercase;
}
.side-link { display: block; padding: 7px 14px; border-radius: 8px; color: var(--gray-600); font-size: 14px; transition: all .15s; }
.side-link:hover { background: var(--gray-50); color: var(--gray-900); }
.side-link.active { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }
.side-bottom { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--gray-100); }

/* 主内容区 */
.doc-main { padding: 36px 40px 64px; min-width: 0; }
.doc-main-wrap { display: grid; grid-template-columns: minmax(0, 1fr) var(--toc-w); gap: 56px; }

/* 面包屑 */
.breadcrumb { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--gray-400); margin-bottom: 14px; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--gray-300); }
.breadcrumb .current { color: var(--gray-700); font-weight: 500; }

/* ===================== 文档正文 · 排版 ===================== */
.doc-article { max-width: 860px; }
.doc-article h1 { font-size: 32px; line-height: 1.3; letter-spacing: -.5px; margin-bottom: 12px; }
.doc-meta {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font-size: 13px; color: var(--gray-500);
  padding-bottom: 18px; border-bottom: 1px solid var(--gray-100); margin-bottom: 8px;
}
.doc-meta .meta-dot { color: var(--gray-300); }
.doc-lead { font-size: 17px; color: var(--gray-600); line-height: 1.85; margin: 20px 0 8px; }

.doc-article h2 {
  font-size: 23px; line-height: 1.35; margin: 44px 0 14px; padding-top: 20px;
  border-top: 1px solid var(--gray-100); scroll-margin-top: calc(var(--nav-h) + 24px);
}
.doc-article h3 { font-size: 18px; margin: 30px 0 10px; scroll-margin-top: calc(var(--nav-h) + 24px); }
.doc-article h2 .anchor, .doc-article h3 .anchor {
  opacity: 0; margin-left: 8px; font-size: 70%; color: var(--gray-400); transition: opacity .15s;
}
.doc-article h2:hover .anchor, .doc-article h3:hover .anchor { opacity: 1; }
.doc-article .anchor:hover { color: var(--primary); }

.doc-article p { color: var(--gray-700); font-size: 15px; line-height: 1.85; margin-bottom: 14px; }
.doc-article ul, .doc-article ol { margin: 0 0 16px 22px; }
.doc-article li { font-size: 15px; color: var(--gray-700); line-height: 1.85; margin-bottom: 6px; }
.doc-article strong { color: var(--gray-900); }
.doc-article code {
  background: var(--gray-100); border: 1px solid var(--gray-200); border-radius: 6px;
  padding: 1.5px 7px; font-family: "Cascadia Code", Consolas, "Courier New", monospace;
  font-size: 13px; color: var(--primary-dark);
}

/* 提示框 */
.callout {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid; border-radius: 12px; padding: 14px 16px; margin: 18px 0;
  font-size: 14px; line-height: 1.75;
}
.callout .co-icon { font-size: 17px; line-height: 1.6; }
.callout .co-title { font-weight: 700; display: block; margin-bottom: 2px; }
.callout.info { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
.callout.tip { background: var(--green-light); border-color: #a7f3d0; color: #065f46; }
.callout.warning { background: var(--accent-light); border-color: #fde68a; color: #92400e; }
.callout.danger { background: var(--red-light); border-color: #fecaca; color: #991b1b; }

/* 表格 */
.table-wrap { overflow-x: auto; }
.doc-table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.doc-table th, .doc-table td { border: 1px solid var(--gray-200); padding: 10px 14px; text-align: left; vertical-align: top; }
.doc-table th { background: var(--gray-50); color: var(--gray-700); font-weight: 600; }
.doc-table tr:hover td { background: #fafbff; }
.doc-table td.hl { background: #eff6ff; font-weight: 600; color: var(--primary-dark); }

/* 步骤条 */
.steps { list-style: none; margin: 20px 0 24px; counter-reset: step; }
.steps li { position: relative; padding: 0 0 26px 54px; counter-increment: step; }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
}
.steps li + li::after {
  content: ""; position: absolute; left: 16px; top: 40px; bottom: 8px;
  width: 2px; background: var(--gray-200);
}
.steps h4 { font-size: 16px; margin-bottom: 4px; padding-top: 5px; }
.steps p { margin: 0; font-size: 14.5px; color: var(--gray-600); }

/* 键盘按键 */
kbd {
  display: inline-block; background: #fff; border: 1px solid var(--gray-300);
  border-bottom-width: 2.5px; border-radius: 6px; padding: 2px 9px; margin: 0 2px;
  font-family: Consolas, "Courier New", monospace; font-size: 12.5px; color: var(--gray-700); line-height: 1.5;
}
.kbd-sep { color: var(--gray-300); margin: 0 2px; }

/* 代码块 */
.code-block { margin: 18px 0; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  background: #1e293b; padding: 8px 16px; font-size: 12.5px; color: #94a3b8;
}
.code-head .copy-btn {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .15);
  color: #cbd5e1; border-radius: 6px; padding: 3px 12px; font-size: 12px; cursor: pointer;
  transition: background .2s;
}
.code-head .copy-btn:hover { background: rgba(255, 255, 255, .16); }
.code-block pre {
  background: var(--dark); color: #e2e8f0; padding: 18px 20px; overflow-x: auto; margin: 0;
  font-family: "Cascadia Code", Consolas, "Courier New", monospace; font-size: 13.5px; line-height: 1.75;
}
.code-block pre code { background: none; border: none; padding: 0; color: inherit; font-size: inherit; }

/* 标签页 */
.tabs { border: 1px solid var(--gray-200); border-radius: 12px; overflow: hidden; margin: 18px 0; }
.tabs-nav { display: flex; background: var(--gray-50); border-bottom: 1px solid var(--gray-200); overflow-x: auto; }
.tabs-nav button {
  border: none; background: none; padding: 11px 20px; white-space: nowrap;
  font-size: 14px; font-weight: 500; color: var(--gray-500); cursor: pointer;
  border-bottom: 2px solid transparent; transition: all .15s;
}
.tabs-nav button:hover { color: var(--gray-700); }
.tabs-nav button.active { background: #fff; color: var(--primary); font-weight: 600; border-bottom-color: var(--primary); }
.tabs-panel { display: none; padding: 18px 20px; font-size: 14.5px; color: var(--gray-600); line-height: 1.8; }
.tabs-panel.active { display: block; }
.tabs-panel p { margin-bottom: 10px; }
.tabs-panel p:last-child { margin-bottom: 0; }

/* 相关文档 */
.related { margin-top: 46px; padding-top: 24px; border-top: 1px solid var(--gray-100); }
.related h4 { font-size: 15px; margin-bottom: 14px; color: var(--gray-900); }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.related-card {
  display: block; border: 1px solid var(--gray-200); border-radius: 10px;
  padding: 13px 16px; font-size: 14px; color: var(--gray-700); transition: all .2s;
}
.related-card:hover { border-color: var(--primary); color: var(--primary); background: #f8faff; }
.related-card .rc-tag { display: block; font-size: 11.5px; color: var(--gray-400); margin-bottom: 2px; }

/* 上一篇 / 下一篇 */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 28px; }
.pager a {
  display: block; border: 1px solid var(--gray-200); border-radius: 12px;
  padding: 14px 18px; transition: border-color .2s, box-shadow .2s;
}
.pager a:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.pager .p-label { font-size: 12px; color: var(--gray-400); }
.pager .p-title { display: block; font-size: 15px; font-weight: 600; color: var(--gray-900); margin-top: 3px; }
.pager a:hover .p-title { color: var(--primary); }
.pager a.next { text-align: right; }

/* 右侧「本页目录」 */
.toc { position: sticky; top: calc(var(--nav-h) + 36px); }
.toc-title {
  font-size: 12px; font-weight: 700; letter-spacing: 1.5px;
  color: var(--gray-400); text-transform: uppercase; margin-bottom: 10px;
}
.toc ul { list-style: none; border-left: 1px solid var(--gray-200); }
.toc a {
  display: block; padding: 4.5px 0 4.5px 14px; margin-left: -1px;
  border-left: 2px solid transparent; font-size: 13px; color: var(--gray-500); line-height: 1.5;
  transition: color .15s;
}
.toc a:hover { color: var(--primary); }
.toc a.active { color: var(--primary); border-left-color: var(--primary); font-weight: 600; }
.toc .toc-sub a { padding-left: 28px; font-size: 12.5px; }

/* ===================== 页脚（与产品主页一致） ===================== */
.footer { background: var(--dark); color: #94a3b8; padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 9px; font-size: 14px; }
.footer ul a { color: #94a3b8; }
.footer ul a:hover { color: #fff; }
.footer .f-brand p { font-size: 14px; margin-top: 14px; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 24px; font-size: 13px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* 返回顶部 */
#toTop {
  position: fixed; right: 26px; bottom: 26px; width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary); color: #fff; border: none; font-size: 18px; cursor: pointer;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 99;
}
#toTop.show { opacity: 1; pointer-events: auto; }
#toTop:hover { background: var(--primary-dark); }

/* ===================== 响应式 ===================== */
@media (max-width: 1180px) {
  .doc-main-wrap { grid-template-columns: 1fr; }
  .toc { display: none; }
}
@media (max-width: 960px) {
  .home-hero { padding: 60px 0 44px; }
  .home-hero h1 { font-size: 30px; }
  .section { padding: 52px 0; }
  .section-head { margin-bottom: 32px; }
  .cat-grid, .related-grid, .pager { grid-template-columns: 1fr; }
  .cta-box { padding: 44px 24px; }

  .docs-layout { display: block; }
  .sidebar {
    position: fixed; top: var(--nav-h); left: 0; bottom: 0; z-index: 98;
    width: min(320px, 85vw); height: auto;
    background: #fff; border-right: 1px solid var(--gray-200); box-shadow: var(--shadow-lg);
    padding: 24px 18px; transform: translateX(-100%); transition: transform .25s;
  }
  .sidebar.open { transform: none; }
  .doc-main { padding: 24px 20px 48px; }
  body.sidebar-open { overflow: hidden; }

  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 20px 0; gap: 16px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .search-box { padding-left: 16px; }
}

/* ===================== 打印 ===================== */
@media print {
  .navbar, .sidebar, .toc, #toTop, .pager, .related, .breadcrumb { display: none !important; }
  .docs-body { padding-top: 0; }
  .doc-main { padding: 0; }
  .doc-main-wrap { display: block; }
  .doc-article h2 { border-top-color: var(--gray-300); }
}