/* ==========================================================================
   site.css —— 全站共享组件样式（搜索、复制按钮、目录分组、概念卡、排查折叠）
   中英文页面共用，颜色全部走 manual.css / styles.css 定义的 CSS 变量，
   因此自动适配浅色与深色主题。
   注意：本文件需在各页面自有样式之后引入。
   ========================================================================== */

/* ---------- 顶栏搜索按钮 ---------- */
.nav-search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-search:hover {
  border-color: var(--blue);
  color: var(--blue);
}

/* ---------- 搜索面板 ---------- */
.sr-root {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(16px, 8vh, 96px) 16px 16px;
}

.sr-root[hidden] {
  display: none !important;
}

.sr-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(9, 14, 24, 0.55);
  backdrop-filter: blur(2px);
}

.sr-dialog {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(680px, 100%);
  max-height: min(72vh, 620px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 30px 70px rgba(9, 14, 24, 0.35);
  overflow: hidden;
}

.sr-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.sr-input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
}

.sr-input::placeholder {
  color: var(--mute);
}

.sr-close {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--mute);
  cursor: pointer;
  font-size: 14px;
}

.sr-close:hover {
  background: var(--bg-soft);
  color: var(--ink);
}

.sr-status {
  padding: 8px 16px 0;
  color: var(--mute);
  font-size: 12px;
}

.sr-list {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 8px;
}

.sr-item {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: inherit;
  text-decoration: none;
}

.sr-item:hover,
.sr-item.is-active {
  background: var(--bg-soft);
  text-decoration: none;
}

.sr-item-page {
  display: block;
  color: var(--mute);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.sr-item-title {
  display: block;
  margin-top: 2px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

.sr-item-snippet {
  display: block;
  margin-top: 3px;
  color: var(--mute);
  font-size: 12.5px;
  line-height: 1.55;
}

.sr-item mark {
  padding: 0 2px;
  border-radius: 3px;
  background: rgba(47, 107, 255, 0.18);
  color: var(--blue-deep);
}

.sr-foot {
  padding: 8px 16px;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 11px;
}

body.sr-open {
  overflow: hidden;
}

/* ---------- 复制按钮 ---------- */
pre,
.prompt-block,
[data-copy] {
  position: relative;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--mute);
  font-size: 11px;
  line-height: 1.6;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

pre:hover .copy-btn,
.prompt-block:hover .copy-btn,
[data-copy]:hover .copy-btn,
.copy-btn:focus-visible,
.copy-btn.is-done {
  opacity: 1;
}

.copy-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.copy-btn.is-done {
  border-color: var(--blue);
  color: var(--blue);
}

@media (hover: none) {
  .copy-btn {
    opacity: 1;
  }
}

/* ---------- 提示词 / 代码块 ---------- */
.prompt-block {
  margin: 12px 0 18px;
  padding: 12px 44px 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------- 目录分组 ---------- */
.toc .toc-group,
.mobile-nav .toc-group {
  margin: 16px 0 6px;
  list-style: none;
  color: var(--mute);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.toc .toc-group:first-child,
.toc ol > .toc-group:first-child {
  margin-top: 0;
}

/* ---------- 核心概念卡片 ---------- */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(238px, 1fr));
  gap: 12px;
  margin: 16px 0 24px;
}

.concept-card {
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
}

.concept-card h3 {
  margin: 0 0 5px;
  font-size: 0.94rem;
}

.concept-card p {
  margin: 0;
  color: var(--mute);
  font-size: 0.85rem;
  line-height: 1.6;
}

.concept-card .concept-meta {
  display: block;
  margin-top: 6px;
  color: var(--blue-deep);
  font-size: 0.78rem;
}

/* ---------- 故障排查折叠 ---------- */
.trouble {
  margin: 0 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  overflow: hidden;
}

.trouble > summary {
  padding: 11px 14px;
  cursor: pointer;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 600;
  list-style: none;
}

.trouble > summary::-webkit-details-marker {
  display: none;
}

.trouble > summary::before {
  content: '＋';
  display: inline-block;
  width: 16px;
  color: var(--blue);
}

.trouble[open] > summary::before {
  content: '－';
}

.trouble-body {
  padding: 0 14px 13px 30px;
  color: var(--mute);
  font-size: 0.87rem;
  line-height: 1.7;
}

.trouble-body p {
  margin: 0 0 8px;
}

.trouble-body p:last-child {
  margin-bottom: 0;
}

.trouble-body strong {
  color: var(--ink-soft);
}

/* ---------- 首页 / 手册的路径卡 ---------- */
.path-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
  margin: 18px 0 8px;
}

.path-card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.path-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(9, 14, 24, 0.14);
  text-decoration: none;
}

.path-card .path-tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(47, 107, 255, 0.12);
  color: var(--blue-deep);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.path-card strong {
  display: block;
  font-size: 1rem;
  color: var(--ink);
}

.path-card span.path-desc {
  display: block;
  margin-top: 5px;
  color: var(--mute);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* ---------- 教程页之间的上下篇 ---------- */
.doc-pager {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.doc-pager a {
  flex: 1 1 220px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: inherit;
  text-decoration: none;
}

.doc-pager a:hover {
  border-color: var(--blue);
  text-decoration: none;
}

.doc-pager .pager-dir {
  display: block;
  color: var(--mute);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.doc-pager .pager-title {
  display: block;
  margin-top: 3px;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 600;
}

/* ---------- 视频演示 ---------- */
.video-frame {
  margin: 16px 0 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.video-frame video,
.video-frame iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
}

.video-frame figcaption {
  padding: 8px 12px;
  background: var(--panel);
  color: var(--mute);
  font-size: 12px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .sr-root {
    padding: 12px;
  }

  .sr-dialog {
    max-height: 84vh;
  }

  .concept-grid,
  .path-grid {
    grid-template-columns: 1fr;
  }
}