/* =============================================================
   Clash中文指南 · 「赤陶手册」设计系统 · 组件层 components.css
   依赖 base.css 中的 :root 设计令牌
   ============================================================= */

/* ---------- 1. Tab 组件(手册索引 + 详情面板) ---------- */
.dossier {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.6rem;
  align-items: start;
}
.dossier > * { min-width: 0; }

.tab-rail {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  border-left: 1px solid var(--rule);
}
.tab-item {
  appearance: none;
  background: none;
  border: 0;
  border-left: 3px solid transparent;
  margin-left: -2px;
  padding: 0.7em 1em;
  text-align: left;
  font-family: var(--font-text);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-mute);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.tab-item:hover { color: var(--ink); }
.tab-item[aria-selected="true"] {
  border-left-color: var(--brick);
  color: var(--ink);
  font-weight: 700;
}

.tab-panel {
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-radius: var(--corner);
  padding: 1.8rem 2rem;
  min-width: 0;
}
.tab-panel[hidden] { display: none; }
.tab-panel h3 { margin-top: 0; }
.tab-panel pre { margin-bottom: 0; }

/* 水平 tab 变体(下载页平台切换等) */
.tab-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 1.6rem;
}
.tab-row .tab-item {
  border-left: 0;
  margin-left: 0;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  padding: 0.55em 1em;
}
.tab-row .tab-item[aria-selected="true"] {
  border-bottom-color: var(--brick);
}

@media (max-width: 760px) {
  .dossier { grid-template-columns: 1fr; }
  .tab-rail {
    flex-direction: row;
    overflow-x: auto;
    border-left: 0;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 0;
    -webkit-overflow-scrolling: touch;
  }
  .tab-rail .tab-item {
    flex-shrink: 0;
    border-left: 0;
    margin-left: 0;
    margin-bottom: -1px;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    padding: 0.6em 0.9em;
  }
  .tab-rail .tab-item[aria-selected="true"] { border-bottom-color: var(--brick); }
  .tab-panel { padding: 1.2rem 1.1rem; }
}

/* ---------- 2. 长页分类跳转导航 toc ---------- */
.toc-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.6rem 0;
  margin-bottom: 2rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  -webkit-overflow-scrolling: touch;
}
.toc-tabs a {
  flex-shrink: 0;
  display: inline-block;
  padding: 0.35em 0.95em;
  border: 1px solid var(--rule);
  background: var(--paper-panel);
  font-size: 0.86rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.toc-tabs a::before { content: "\00A7 "; color: var(--brick); font-family: var(--font-code); }
.toc-tabs a:hover { border-color: var(--brick); color: var(--brick-deep); }

/* ---------- 3. FAQ 折叠项 ---------- */
.qa-item {
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-radius: var(--corner);
  margin-bottom: 0.8rem;
}
.qa-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 0.7em;
  padding: 0.95em 1.2em;
  font-weight: 600;
  color: var(--ink);
}
.qa-item summary::-webkit-details-marker { display: none; }
.qa-item summary::before {
  content: "+";
  font-family: var(--font-code);
  font-weight: 500;
  color: var(--brick);
  flex-shrink: 0;
}
.qa-item[open] summary::before { content: "\2212"; }
.qa-item[open] summary { border-bottom: 1px solid var(--rule); }
.qa-body { padding: 1em 1.2em 1.1em 2.4em; color: var(--ink-mute); }
.qa-body p:last-child { margin-bottom: 0; }

/* ---------- 4. 术语卡 ---------- */
.term-card {
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-radius: var(--corner);
  padding: 1.2rem 1.35rem;
  min-width: 0;
}
.term-card dt {
  font-family: var(--font-code);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--ink);
  margin-bottom: 0.4em;
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  flex-wrap: wrap;
}
.term-card dd { margin: 0; color: var(--ink-mute); font-size: 0.92rem; }
.term-cat {
  font-family: var(--font-code);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
  border: 1px solid var(--rule);
  padding: 0.1em 0.55em;
  flex-shrink: 0;
}

/* ---------- 5. 下载客户端卡片 ---------- */
.app-card {
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-radius: var(--corner);
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-width: 0;
}
.app-card-lead { border-top: 3px solid var(--brick); }

.app-head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}
.app-head img { width: 48px; height: 48px; flex-shrink: 0; }
.app-name { margin: 0; font-size: 1.08rem; }
.app-ver {
  font-family: var(--font-code);
  font-size: 0.74rem;
  color: var(--brick-deep);
  border: 1px solid var(--brick);
  padding: 0.1em 0.55em;
  flex-shrink: 0;
}
.app-desc { margin: 0; color: var(--ink-mute); font-size: 0.92rem; }
.app-meta {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.1rem;
  font-family: var(--font-code);
  font-size: 0.76rem;
  color: var(--ink-mute);
}
.app-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: auto; }

/* 徽章 */
.badge {
  display: inline-block;
  font-family: var(--font-code);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.18em 0.65em;
  border: 1px solid var(--rule);
  color: var(--ink-mute);
  flex-shrink: 0;
}
.badge-first { border-color: var(--brick); background: var(--brick); color: var(--paper-panel); }
.badge-pick { border-color: var(--brick); color: var(--brick-deep); }
.badge-ok { border-color: var(--ok); color: var(--ok); }
.badge-warn { border-color: var(--warn); color: var(--warn); }
.badge-dead { border-color: var(--rule); background: var(--paper-tint); color: var(--ink-mute); text-decoration: line-through; text-decoration-color: var(--bad); }

/* ---------- 6. 博客文章卡 ---------- */
.post-card {
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-radius: var(--corner);
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-width: 0;
}
.post-line {
  display: flex;
  align-items: baseline;
  gap: 0.8em;
  flex-wrap: wrap;
  font-family: var(--font-code);
  font-size: 0.76rem;
  color: var(--ink-mute);
}
.post-tag {
  border: 1px solid var(--rule);
  padding: 0.1em 0.6em;
  color: var(--brick-deep);
  flex-shrink: 0;
}
.post-title { margin: 0; font-size: 1.05rem; line-height: 1.5; }
.post-title a { color: var(--ink); text-decoration: none; }
.post-title a:hover { color: var(--brick-deep); text-decoration: underline; }
.post-sum { margin: 0; color: var(--ink-mute); font-size: 0.9rem; }
.post-more {
  margin-top: auto;
  font-size: 0.86rem;
  font-weight: 600;
  align-self: flex-start;
}

/* 标签筛选行(博客列表页) */
.tag-filter { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.8rem; }
.tag-filter button {
  appearance: none;
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-radius: var(--corner);
  padding: 0.35em 0.95em;
  font-family: var(--font-text);
  font-size: 0.85rem;
  color: var(--ink);
  cursor: pointer;
}
.tag-filter button:hover { border-color: var(--brick); color: var(--brick-deep); }
.tag-filter button[aria-pressed="true"] {
  background: var(--brick);
  border-color: var(--brick);
  color: var(--paper-panel);
}

/* ---------- 7. Callout 引用块 ---------- */
.callout {
  border: 1px solid var(--rule);
  border-left: 3px solid var(--brick);
  background: var(--paper-panel);
  border-radius: var(--corner);
  padding: 0.95rem 1.25rem;
  margin: 1.4rem 0;
  font-size: 0.93rem;
  color: var(--ink);
}
.callout p:last-child { margin-bottom: 0; }
.callout-title {
  display: block;
  font-family: var(--font-code);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brick-deep);
  margin-bottom: 0.4em;
}
.callout-ok { border-left-color: var(--ok); }
.callout-ok .callout-title { color: var(--ok); }
.callout-warn { border-left-color: var(--warn); }
.callout-warn .callout-title { color: var(--warn); }
.callout-bad { border-left-color: var(--bad); }
.callout-bad .callout-title { color: var(--bad); }

/* ---------- 8. 命令展示框(可复制) ---------- */
.cmd-box {
  display: flex;
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--rule);
  background: var(--paper-tint);
  margin: 1.4rem 0;
  min-width: 0;
}
.cmd-box pre {
  flex: 1;
  min-width: 0;
  margin: 0;
  border: 0;
  background: none;
}
.cmd-copy {
  appearance: none;
  border: 0;
  border-left: 1px solid var(--rule);
  background: var(--paper-panel);
  font-family: var(--font-code);
  font-size: 0.76rem;
  color: var(--ink);
  padding: 0 1.1em;
  cursor: pointer;
  flex-shrink: 0;
}
.cmd-copy:hover { color: var(--brick-deep); }

/* ---------- 9. 文末下载引导卡 ---------- */
.dl-outro {
  background: var(--paper-panel);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--brick);
  border-radius: var(--corner);
  padding: 1.8rem 2rem;
  margin: 2.6rem 0;
}
.dl-outro h2, .dl-outro h3 { margin-top: 0; }
.dl-outro p { color: var(--ink-mute); }
.dl-outro-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }

@media (max-width: 640px) {
  .dl-outro { padding: 1.3rem 1.1rem; }
  .dl-outro-actions .btn { width: 100%; }
}

/* ---------- 10. 右下角常驻下载浮层 ---------- */
.dl-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: var(--brick);
  color: var(--paper-panel);
  border: 1px solid var(--brick-deep);
  border-radius: var(--corner);
  padding: 0.65em 1.15em;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.18s ease;
}
.dl-fab:hover { background: var(--brick-deep); color: var(--paper-panel); }
.dl-fab svg { width: 15px; height: 15px; flex-shrink: 0; }

@media (max-width: 640px) {
  .dl-fab { right: 12px; bottom: 12px; padding: 0.6em 0.95em; font-size: 0.82rem; }
}

/* ---------- 11. 步骤序号(教程/快速上手) ---------- */
.step-list { list-style: none; margin: 0 0 1.4rem; padding: 0; counter-reset: step; }
.step-list > li {
  counter-increment: step;
  position: relative;
  padding: 0 0 1.6rem 3rem;
  margin: 0;
}
.step-list > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--font-code);
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--brick-deep);
  border: 1px solid var(--brick);
  padding: 0.15em 0.45em;
  background: var(--paper-panel);
}
.step-list > li::after {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 2.4em;
  bottom: 0.3rem;
  width: 1px;
  background: var(--rule);
}
.step-list > li:last-child { padding-bottom: 0; }
.step-list > li:last-child::after { display: none; }
.step-list h3, .step-list h4 { margin-bottom: 0.35em; }
.step-list p { color: var(--ink-mute); }

/* ---------- 12. 面包屑(博客文章页) ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5em;
  margin: 1.4rem 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  color: var(--ink-mute);
}
.crumbs li { margin: 0; display: flex; align-items: center; gap: 0.5em; min-width: 0; }
.crumbs li + li::before { content: "/"; color: var(--rule); }
.crumbs a { color: var(--ink-mute); text-decoration: none; }
.crumbs a:hover { color: var(--brick-deep); text-decoration: underline; }
.crumbs .crumb-here {
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 22em;
}