/* ============================================================
   文档页布局:左侧目录 · 中间正文 · (小屏折叠)
   ============================================================ */

.doc-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
  gap: 48px;
  align-items: start;
}
@media (max-width: 780px) {
  .doc-shell {
    display: block;         /* 移动端不用 grid,toc 是 fixed 不占位 */
    padding: 0;             /* 归零,避免和 doc-content 双重 padding */
  }
  /* 主动脱流:确保 aside.doc-toc 完全不占块级空间 */
  aside.doc-toc {
    padding: 0;
    margin: 0;
    float: none;
  }
  .doc-content {
    padding: 12px 16px 60px !important;
    max-width: 100%;
  }
  .doc-hero { margin-top: 0 !important; }
  /* 移动端:doc-toc 变成左侧滑出全高抽屉(Material Drawer 风格) */
  .doc-toc {
    position: fixed;
    left: 0;
    top: 0;
    right: auto;
    bottom: 0;
    width: min(300px, 85vw);
    max-height: none;
    height: 100vh;
    background: var(--panel);
    border: none;
    border-right: 1px solid var(--line);
    border-radius: 0;
    box-shadow: 4px 0 24px -8px rgba(0,0,0,0.18);
    padding: 0;
    overflow: hidden;
    z-index: 200;
    transform: translateX(-100%);
    opacity: 1;
    pointer-events: none;
    transition: transform 0.28s cubic-bezier(0.32, 0.72, 0, 1);
    margin: 0;
  }
  .doc-toc.open {
    transform: translateX(0);
    pointer-events: auto;
  }
  /* 抽屉打开时的背景遮罩,点击关闭 */
  .doc-toc-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.32);
    z-index: 190;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.24s ease;
  }
  .doc-toc-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }

  /* FAB toggle 按钮 —— 悬浮左侧偏下,不挡顶导 */
  .doc-toc-toggle {
    position: fixed;
    left: 14px;
    top: auto;
    bottom: 24px;       /* 从底部起,不遮挡顶导 */
    width: 40px;         /* 缩小 */
    height: 40px;
    z-index: 30;         /* 平时低于 nav(100),打开时提到 210 */
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    border: none;
    box-shadow: 0 6px 16px -4px rgba(255,130,0,0.42),
                0 2px 5px rgba(0,0,0,0.1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0;
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .doc-toc-toggle:hover,
  .doc-toc-toggle:active {
    transform: scale(1.06);
    box-shadow: 0 12px 32px -6px rgba(255,130,0,0.6);
  }
  .doc-toc-toggle-label {
    font-family: var(--serif);
    font-size: 10px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
    color: #fff;
  }
  .doc-toc-toggle-caret {
    display: none;   /* FAB 里不需要箭头 */
  }
  /* 打开时 FAB 提升到抽屉之上,可点关闭;同时变深墨 */
  body.doc-toc-open .doc-toc-toggle {
    background: var(--ink);
    box-shadow: 0 6px 16px -4px rgba(0,0,0,0.32);
    z-index: 210;
  }
  body.doc-toc-open .doc-toc-toggle-label { font-size: 20px; }

  /* 抽屉内部滚动区 */
  .doc-toc-body {
    max-height: inherit;
    overflow-y: auto;
    padding: 4px 8px;
  }
  /* drawer 顶部留安全区 + 关闭提示头 */
  .doc-toc::before {
    content: '目录';
    display: block;
    padding: max(20px, env(safe-area-inset-top, 20px)) 20px 14px;
    font-family: var(--serif);
    font-size: 18px;
    font-weight: 800;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    background: var(--panel);
    position: sticky;
    top: 0;
    z-index: 1;
  }
  .doc-toc-title {
    display: block;
    margin: 12px 16px 6px;
    padding: 0;
    font-size: 10px;
    color: var(--ink-mute);
    letter-spacing: 2px;
  }
  .doc-toc-title:first-child { margin-top: 4px; }
  .doc-toc ul {
    display: block;
    margin: 0 0 8px;
    padding: 0 8px;
    gap: 0;
  }
  .doc-toc li { margin: 2px 0; }
  .doc-toc a {
    display: block;
    padding: 8px 14px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    white-space: normal;
    background: transparent;
    color: var(--ink);
  }
  .doc-toc a:hover,
  .doc-toc a.active {
    background: var(--accent-tint);
    color: var(--accent);
    border: none;
  }

  /* 正文标题字号 */
  .doc-content { padding: 8px 0 60px; }
  .doc-content h1 { font-size: 32px; line-height: 1.2; }
  .doc-content h2 { font-size: 22px; margin-top: 32px; }
  .doc-content h3 { font-size: 17px; margin-top: 24px; }
  .doc-content pre { padding: 14px 16px; font-size: 11.5px; overflow-x: auto; }
  .doc-content table { font-size: 12px; }
  .doc-content table th, .doc-content table td { padding: 6px 8px; }
}

/* --- 左侧目录 —— 仅桌面(≥ 781px)才 sticky,移动端由上方 media query 接管 --- */
@media (min-width: 781px) {
  .doc-toc {
    position: sticky;
    top: 72px;
    padding: 32px 0;
    font-size: 14px;
  }
}
.doc-toc-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--ink-mute);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.doc-toc ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}
.doc-toc li { margin: 4px 0; }
.doc-toc a {
  color: var(--ink-soft);
  text-decoration: none;
  padding: 4px 0;
  display: block;
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: color 0.12s, border-color 0.12s;
}
.doc-toc a:hover,
.doc-toc a.active {
  color: var(--accent);
  border-left-color: var(--accent);
}

/* --- 右侧正文 --- */
.doc-content {
  padding: 32px 0 100px;
  max-width: 720px;
}
.doc-content h1 {
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  margin: 0 0 12px;
}
.doc-content h1 em {
  font-style: normal;
  color: var(--ink);
  background: linear-gradient(180deg, transparent 55%, var(--accent-soft) 55%);
  padding: 0 4px;
  border-radius: 2px;
}
.doc-content .lead {
  font-size: 18px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin: 0 0 40px;
}
.doc-content h2 {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 800;
  margin: 48px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 80px;
}
.doc-content h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 12px;
  scroll-margin-top: 80px;
}
.doc-content p {
  margin: 0 0 16px;
  color: var(--ink);
}
.doc-content a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-soft);
  padding-bottom: 1px;
  transition: border-color 0.15s, color 0.15s;
}
.doc-content a:hover {
  border-bottom-color: var(--accent);
  color: var(--accent-warm, var(--accent));
}
.doc-content a code {
  border-bottom: none;
  padding: 1px 5px;
}
.doc-content strong {
  background: linear-gradient(180deg, transparent 55%, var(--accent-soft) 55%);
  padding: 0 3px;
}
.doc-content ul, .doc-content ol {
  padding-left: 24px;
  margin: 0 0 20px;
}
.doc-content li {
  margin: 6px 0;
}
.doc-content code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--accent-tint);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--accent-soft);
}
.doc-content pre {
  margin: 20px 0;
  padding: 20px 24px;
  background: var(--code-bg);
  color: var(--code-fg);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.75;
  border-radius: 12rpx;
  border-radius: 12px;
  overflow-x: auto;
}
.doc-content pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
.doc-content .c { color: var(--code-comment); }
.doc-content .k { color: #F5C94A; }
.doc-content .s { color: #A5D8A2; }
.doc-content .a { color: #E38C60; }

/* Skill 下载卡 —— 醒目大 CTA */
.skill-download-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  margin: 24px 0 20px;
  background: linear-gradient(135deg, var(--accent-tint) 0%, var(--panel) 100%);
  border: 2px solid var(--accent);
  border-radius: 16px;
  box-shadow: 0 8px 24px -12px rgba(255,130,0,0.24);
  flex-wrap: wrap;
}
.skill-download-icon {
  font-size: 40px;
  line-height: 1;
  flex-shrink: 0;
}
.skill-download-body { flex: 1; min-width: 240px; }
.skill-download-title {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.skill-download-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.skill-download-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.skill-download-desc code {
  font-size: 11.5px;
  padding: 1px 5px;
}
.skill-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 22px;
  background: var(--accent);
  color: #fff !important;
  border-radius: 999px;
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 3px 12px rgba(255,130,0,0.28);
  transition: transform 0.12s, box-shadow 0.12s;
  flex-shrink: 0;
}
.skill-download-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255,130,0,0.36);
}

/* dev-skill 卡片:换更中性的深色调,和 AI 输出 skill(橙)区分 */
.skill-download-card-alt {
  background: linear-gradient(135deg, var(--panel-soft) 0%, var(--panel) 100%);
  border-color: var(--ink);
  box-shadow: 0 8px 24px -12px rgba(0,0,0,0.14);
}
.skill-download-card-alt .skill-download-meta { color: var(--ink-soft); }
.skill-download-card-alt .skill-download-btn {
  background: var(--ink);
  box-shadow: 0 3px 12px rgba(0,0,0,0.18);
}
.skill-download-card-alt .skill-download-btn:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.28);
}

.doc-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-tint);
  margin: 20px 0;
  padding: 12px 20px;
  color: var(--ink);
  border-radius: 0 12px 12px 0;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
  background: var(--panel);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.doc-content th,
.doc-content td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.doc-content th {
  background: var(--panel-soft);
  font-weight: 700;
  color: var(--ink);
}
.doc-content tr:last-child td { border-bottom: 0; }

/* --- callout --- */
.callout {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 14px;
}
.callout-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
  font-weight: 700;
}

/* --- doc hero (每个文档页顶部) --- */
.doc-hero {
  padding: 60px 0 20px;
}

/* --- prev / next 页面导航 --- */
.doc-nav {
  display: flex;
  gap: 12px;
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.doc-nav a {
  flex: 1;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--ink);
  background: var(--panel);
  transition: border-color 0.15s;
}
.doc-nav a:hover { border-color: var(--accent); }
.doc-nav .doc-nav-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--ink-mute);
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.doc-nav .doc-nav-title {
  font-weight: 700;
  font-family: var(--serif);
  font-size: 17px;
}