/* =========================================================
   天鸿智算 - API 开发文档站样式
   参考：环宇互联 API 文档（doc.hyucloud.com/docindex.html）
   明/暗双主题 · topbar + 双栏布局
   ========================================================= */

/* ---------- 主题变量 ---------- */
:root {
  --bg: #f7f7f8;
  --panel: #ffffff;
  --text: #1d1d1f;
  --text-dim: #6e6e73;
  --text-mute: #9c9ca1;
  --border: #e4e4e7;
  --primary: #4f46e5;
  --primary-soft: #eef2ff;
  --accent: #06b6d4;
  --violet: #8b5cf6;
  --code-bg: #0d1526;
  --code-text: #e2e8f0;
  --code-head: #131c30;
  --code-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  --grad: linear-gradient(135deg, #06b6d4 0%, #4f46e5 55%, #8b5cf6 100%);
  --sidebar-bg: #ffffff;
  --toc-hover: #f3f4f6;
  --hero-bg:
    radial-gradient(ellipse at 50% -20%, rgba(79, 70, 229, 0.12), transparent 55%),
    linear-gradient(180deg, #f2f5ff 0%, #ffffff 100%);
  --badge-bg: linear-gradient(135deg, #06b6d4, #4f46e5);
  --mark-bg: #fde68a;
  --mark-text: #1d1d1f;
}

body[data-theme="dark"] {
  --bg: #0a0e1a;
  --panel: #101726;
  --text: #e5e7eb;
  --text-dim: #9aa4b8;
  --text-mute: #5c6a82;
  --border: #1d2637;
  --primary: #818cf8;
  --primary-soft: rgba(129, 140, 248, 0.12);
  --code-bg: #0d1526;
  --code-text: #e2e8f0;
  --code-head: #131c30;
  --code-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --sidebar-bg: #0c1322;
  --toc-hover: #151f33;
  --hero-bg:
    radial-gradient(ellipse at 50% -20%, rgba(79, 70, 229, 0.25), transparent 55%),
    linear-gradient(180deg, #101a33 0%, #0a0e1a 100%);
  --mark-bg: #7a5b00;
  --mark-text: #ffeb9e;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body, h1, h2, h3, h4, h5, h6, p, a, span, li, div, td, th,
input, button, textarea, select, label, blockquote {
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 顶部导航条 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
body[data-theme="dark"] .topbar { background: rgba(10, 14, 26, 0.85); }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.logo {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.30);
  flex-shrink: 0;
}
.logo-img {
  height: 40px;
  width: auto;
  display: block;
  border-radius: 8px;
  flex-shrink: 0;
}
.brand-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.2;
}
.brand-subtitle {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 1px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }
.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}
.back-home:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 双栏布局 ---------- */
.layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  gap: 24px;
}

/* ---------- 侧边栏 ---------- */
.sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
  background: var(--sidebar-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.sidebar::-webkit-scrollbar { width: 5px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }

.search-box {
  position: relative;
  margin-bottom: 14px;
}
.search-box input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 13.5px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}
.search-box .search-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-mute);
}
.search-meta { font-size: 12px; color: var(--text-mute); margin: 4px 2px 10px; min-height: 16px; }

#toc { padding-bottom: 6px; }
#toc a {
  display: block;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.15s;
  scroll-margin-top: 100px;
}
#toc a.level-1 {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
  padding: 9px 12px;
  margin-top: 8px;
}
#toc a.level-2 {
  font-size: 13px;
  color: var(--text-dim);
  padding: 7px 12px 7px 30px;
  border-left: 2px solid transparent;
}
#toc a.level-2:hover { background: var(--toc-hover); color: var(--text); }
#toc a.active {
  color: var(--primary);
  font-weight: 600;
}
#toc a.level-1.active { background: var(--primary-soft); }
#toc a.level-2.active { border-left-color: var(--primary); background: var(--primary-soft); }

/* ---------- 内容区 ---------- */
.content { min-width: 0; }

/* Hero */
.hero {
  background: var(--hero-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 44px 48px;
  margin-bottom: 28px;
}
.badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--badge-bg);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero h1 {
  font-size: 34px;
  font-weight: 700;
  margin: 18px 0 12px;
  line-height: 1.25;
}
.hero .hero-desc {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 640px;
  margin-bottom: 8px;
}
.hero .hero-base {
  margin: 14px 0 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: var(--text-dim);
}
.hero .hero-base code {
  background: var(--code-bg);
  color: #7dd3fc;
  padding: 5px 12px;
  border-radius: 8px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
}
.hero .hero-base .btn-copy {
  background: rgb(155 155 155 / 16%);
  border: 1px solid rgb(206 206 207 / 55%);
  color: #8c8e91;
  font-size: 12px;
  padding: 4px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
  line-height: 1.5;
}
.hero .hero-base .btn-copy:hover {
  background: #3b82f6;
  border-color: #3b82f6;
  color: #ffffff;
}
.hero .hero-base .btn-copy.copied {
  background: rgba(52, 211, 153, 0.16);
  border-color: rgba(52, 211, 153, 0.55);
  color: #34d399;
}
.hero .hero-base .btn-copy.copied:hover {
  background: #10b981;
  border-color: #10b981;
  color: #ffffff;
}
.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.quick-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}
.quick-links a:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.12);
}

/* ---------- 文档正文 ---------- */
.doc-article {
  max-width: 900px;
  padding: 20px 12px 60px;
}

.doc-article h1, .doc-article h2, .doc-article h3, .doc-article h4 {
  font-weight: 700;
  line-height: 1.4;
  scroll-margin-top: 100px;
  position: relative;
}
.doc-article h1 {
  font-size: 30px;
  margin: 44px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.doc-article h2 {
  font-size: 23px;
  margin: 36px 0 14px;
}
.doc-article h3 { font-size: 18px; margin: 28px 0 12px; }
.doc-article h4 { font-size: 15.5px; margin: 24px 0 10px; }
.doc-article h1:first-child { margin-top: 8px; }

.anchor {
  opacity: 0;
  margin-left: 8px;
  font-size: 0.85em;
  color: var(--primary);
  text-decoration: none;
  font-weight: 400;
  transition: opacity 0.15s;
}
.doc-article h1:hover .anchor,
.doc-article h2:hover .anchor,
.doc-article h3:hover .anchor,
.doc-article h4:hover .anchor { opacity: 1; }

.doc-article p { margin: 14px 0; }
.doc-article a { color: var(--primary); text-decoration: none; }
.doc-article a:hover { text-decoration: underline; text-underline-offset: 3px; }

.doc-article ul, .doc-article ol { margin: 14px 0; padding-left: 26px; }
.doc-article li { margin: 6px 0; }
.doc-article ul li::marker { color: var(--primary); }
.doc-article ol li::marker { color: var(--violet); font-weight: 700; }

.doc-article hr { border: none; border-top: 1px solid var(--border); margin: 30px 0; }

.doc-article blockquote {
  border-left: 4px solid var(--violet);
  background: rgba(139, 92, 246, 0.06);
  padding: 12px 18px;
  border-radius: 0 10px 10px 0;
  color: var(--text-dim);
  margin: 16px 0;
}

.doc-article code {
  font-family: Consolas, "Courier New", monospace;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.88em;
}
.doc-article pre { background: none; padding: 0; margin: 0; }
.doc-article pre code { background: none; color: var(--code-text); padding: 0; font-size: 13.5px; }
.doc-article strong { font-weight: 700; }
.doc-article img { max-width: 100%; height: auto; border-radius: 8px; margin: 14px 0; }

/* mark 搜索高亮 */
.doc-article mark {
  background: var(--mark-bg);
  color: var(--mark-text);
  border-radius: 3px;
  padding: 0 2px;
}

/* ---------- 代码块 ---------- */
.code-block {
  margin: 18px 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 16px;
  background: var(--code-head);
  border-bottom: 1px solid var(--code-border);
}
.code-lang { font-size: 12px; color: #7b8aa8; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; }
.code-copy {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #a5b4cf;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.code-copy:hover { color: #fff; border-color: rgba(255, 255, 255, 0.35); }
.code-block pre { padding: 16px 20px; overflow-x: auto; margin: 0; }
.code-block pre code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--code-text);
  white-space: pre;
}
.code-block .tok-kw { color: #818cf8; }
.code-block .tok-str { color: #34d399; }
.code-block .tok-num { color: #fbbf24; }
.code-block .tok-cm { color: #5b6b8c; font-style: italic; }
.code-block .tok-fn { color: #60a5fa; }

/* ---------- 表格 ---------- */
.table-wrap, .md-table-wrap {
  overflow-x: auto;
  margin: 18px 0;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.table-wrap table, .md-table-wrap table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
}
.table-wrap th, .table-wrap td, .md-table-wrap th, .md-table-wrap td {
  padding: 11px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table-wrap th, .md-table-wrap th {
  background: var(--primary-soft);
  font-weight: 700;
  color: var(--primary);
}
.table-wrap tbody tr:last-child td, .md-table-wrap tbody tr:last-child td { border-bottom: none; }
.table-wrap tbody tr:hover, .md-table-wrap tbody tr:hover { background: var(--primary-soft); }

/* ---------- 提示框（markdown 渲染产物） ---------- */
.md-alert {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 18px;
  border-radius: 12px;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.7;
}
.md-alert-icon { font-size: 16px; line-height: 1.6; flex-shrink: 0; }
.md-alert-warn { background: rgba(245, 158, 11, 0.08); border: 1px solid rgba(245, 158, 11, 0.25); color: #b45309; }
.md-alert-tip { background: rgba(6, 182, 212, 0.08); border: 1px solid rgba(6, 182, 212, 0.25); color: #0e7490; }
body[data-theme="dark"] .md-alert-warn { color: #fbbf24; }
body[data-theme="dark"] .md-alert-tip { color: #22d3ee; }

/* ---------- 文档元信息（阅读页） ---------- */
.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 12.5px;
  color: var(--text-mute);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 26px;
}
.doc-meta a { color: var(--text-mute); text-decoration: none; }
.doc-meta a:hover { color: var(--primary); }

/* 上一篇 / 下一篇 */
.doc-pager {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}
.doc-pager a {
  flex: 1;
  max-width: 48%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 13.5px;
  color: var(--text-dim);
  background: var(--panel);
  text-decoration: none;
  transition: all 0.2s;
}
.doc-pager a:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.doc-pager a.next { text-align: right; margin-left: auto; }
.doc-pager .pg-label { display: block; font-size: 11.5px; color: var(--text-mute); margin-bottom: 3px; }

/* 分类分组容器（docs 首页单页长文） */
.doc-section { margin-bottom: 10px; }
.doc-section + .doc-section { margin-top: 40px; }
.doc-cat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  margin: 40px 0 6px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.doc-cat-head .cat-icon { font-size: 20px; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s;
  z-index: 99;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { color: var(--primary); border-color: var(--primary); }

/* ---------- 空状态 ---------- */
.docs-empty { text-align: center; color: var(--text-mute); padding: 60px 0; }
.docs-empty .empty-icon { font-size: 48px; margin-bottom: 14px; }

/* ---------- 后台 Markdown 预览（.md-preview 容器） ---------- */
.md-preview {
  max-width: 900px;
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.8;
}
.md-preview h1, .md-preview h2, .md-preview h3, .md-preview h4 {
  font-weight: 700;
  line-height: 1.4;
  margin: 24px 0 12px;
}
.md-preview h1 { font-size: 26px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.md-preview h2 { font-size: 21px; }
.md-preview h3 { font-size: 17px; }
.md-preview p { margin: 12px 0; }
.md-preview a { color: var(--primary); text-decoration: none; }
.md-preview ul, .md-preview ol { margin: 12px 0; padding-left: 26px; }
.md-preview li { margin: 5px 0; }
.md-preview blockquote {
  border-left: 4px solid var(--violet);
  background: rgba(139, 92, 246, 0.06);
  padding: 10px 16px;
  border-radius: 0 10px 10px 0;
  color: var(--text-dim);
  margin: 14px 0;
}
.md-preview code {
  font-family: Consolas, "Courier New", monospace;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.88em;
}
.md-preview pre { background: none; padding: 0; margin: 0; }
.md-preview pre code { background: none; color: var(--code-text); padding: 0; }
.md-preview hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.md-preview .md-alert p { margin: 0; }

.docs-lang select {
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  outline: none;
}
.docs-lang select:hover { border-color: var(--primary); }

/* ---------- 文档页脚 ---------- */
.docs-footer {
  border-top: 1px solid var(--border);
  margin-top: 8px;
  background: var(--panel);
}
.docs-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}
.docs-footer-brand { color: var(--text); font-weight: 600; }
.docs-footer-links { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.docs-footer-links a { color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.docs-footer-links a:hover { color: var(--primary); }
.docs-footer-copy { color: var(--text-dim); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; padding: 16px; gap: 16px; }
  .sidebar {
    position: static;
    max-height: none;
  }
  .topbar { padding: 0 16px; }
  .brand-subtitle { display: none; }
  .hero { padding: 30px 22px; }
  .hero h1 { font-size: 26px; }
  .doc-article { padding: 10px 4px 50px; }
  .doc-article h1 { font-size: 24px; }
  .doc-article h2 { font-size: 20px; }
  .doc-pager a { max-width: 100%; }
  .doc-pager { flex-direction: column; }
  .docs-footer-inner { padding: 24px 16px; flex-direction: column; align-items: flex-start; }
  .hero-top { flex-direction: column; align-items: flex-start; }
}