/* 夸克 FAQ v2 —— Wiki 文档风(浅色纸面 + 左侧分类导航)
 * 列表页:左侧栏(搜索 + 分类导航) + 右侧行式列表;文章页:左侧栏 + 文档正文
 * 选择器与 DOM id 不变,JS 仅列表行模板微调
 */
:root {
  --c-primary: #0d53ff;
  --c-accent: #1e8bff;
  --c-text: #1c1e24;
  --c-text2: #4b4f59;
  --c-text3: #7a7e89;
  --c-muted: #9aa0ab;
  --c-border: #e7e9ef;
  --c-border2: #eef0f4;
  --c-bg: #f6f7f9;
  --c-side: #fafbfc;
  --c-tint: #eef4ff;
  --c-radius: 12px;
}

* { box-sizing: border-box; }
html { height: 100%; }

body {
  margin: 0;
  background: #fff;
  color: var(--c-text);
  font-family: PingFang SC, Microsoft YaHei, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

::selection { background: rgba(13, 83, 255, .16); }

/* ── 顶栏 ───────────────────────────────── */
.s-topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-border);
}

.s-topbar-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  height: 60px; display: flex; align-items: center; gap: 30px;
}

.s-brand { height: 24px; width: auto; }

.s-menu { display: flex; gap: 26px; font-size: 14px; color: var(--c-text2); }
.s-menu a { padding: 4px 0; position: relative; transition: color .2s; white-space: nowrap; }
.s-menu a:hover { color: var(--c-primary); }
.s-menu a.active { color: var(--c-primary); font-weight: 500; }
.s-menu a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; border-radius: 2px; background: var(--c-primary);
}

.s-cta {
  margin-left: auto; flex: none;
  padding: 7px 18px; border-radius: 8px;
  background: var(--c-primary); color: #fff;
  font-size: 13.5px; font-weight: 500;
  transition: opacity .2s;
}
.s-cta:hover { opacity: .88; }

/* ── Wiki 双栏骨架 ──────────────────────── */
.s-wiki {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 268px minmax(0, 1fr);
  align-items: start;
}

.s-side {
  position: sticky; top: 60px;
  height: calc(100vh - 60px); overflow-y: auto;
  padding: 20px 16px 30px;
  border-right: 1px solid var(--c-border);
  background: var(--c-side);
}

.s-side-title {
  margin: 18px 12px 8px;
  font-size: 12px; font-weight: 600; letter-spacing: 1px;
  color: var(--c-muted);
}

/* 侧栏搜索 */
.s-search {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 13px;
  background: #eef0f4; border: 1px solid transparent;
  border-radius: 10px;
  transition: border-color .2s, background .2s;
}
.s-search:focus-within {
  background: #fff; border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(30, 139, 255, .12);
}
.s-search .s-search-icon { font-size: 14px; opacity: .5; flex: none; }
.s-search input {
  flex: 1; min-width: 0; border: 0; outline: 0; background: transparent;
  font-size: 13.5px; color: var(--c-text);
  font-family: inherit;
}
.s-search input::placeholder { color: var(--c-muted); }
.s-search .s-search-clear {
  display: none; flex: none; cursor: pointer; border: 0;
  width: 20px; height: 20px; border-radius: 50%;
  background: #dadee6; color: var(--c-text3);
  font-size: 14px; line-height: 1;
}
.s-search .s-search-clear:hover { background: #cfd5df; }

/* 侧栏分类导航 */
.s-side-nav { display: flex; flex-direction: column; }

.s-nav-item {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 12px; margin-bottom: 2px;
  border-radius: 8px;
  font-size: 13.5px; color: #3f434d;
  transition: background .15s, color .15s;
}
.s-nav-item:hover { background: #eff2f7; color: var(--c-text); }
.s-nav-item.active {
  background: #e9f1ff; color: var(--c-primary); font-weight: 600;
}
.s-nav-item .s-nav-count {
  flex: none; padding: 1px 8px; border-radius: 999px;
  background: #eef0f4; color: var(--c-muted);
  font-size: 11.5px; font-variant-numeric: tabular-nums;
}
.s-nav-item.active .s-nav-count { background: #d8e6ff; color: var(--c-primary); }

.s-side-back {
  display: inline-flex; align-items: center; gap: 6px;
  margin: 2px 12px 4px;
  font-size: 13px; color: var(--c-primary);
}
.s-side-back:hover { text-decoration: underline; }

/* ── 右侧内容列 ─────────────────────────── */
.s-content { min-width: 0; padding: 36px 44px 90px; }

.s-doc-head {
  padding-bottom: 20px; margin-bottom: 6px;
  border-bottom: 1px solid var(--c-border);
}
.s-doc-crumb { font-size: 12.5px; color: var(--c-muted); margin-bottom: 10px; }
.s-doc-head h1 {
  margin: 0 0 10px;
  font-size: 30px; line-height: 1.3; font-weight: 650; letter-spacing: -.3px;
}
.s-lead {
  margin: 0; max-width: 680px;
  font-size: 14px; color: var(--c-text3); line-height: 1.8;
}

/* ── 行式问答列表 ───────────────────────── */
.s-main { max-width: 860px; }

.s-section-head {
  display: flex; align-items: baseline; gap: 12px;
  padding: 18px 0 12px; margin-bottom: 4px;
}
.s-section-head h2 {
  margin: 0; font-size: 18px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.s-section-head h2::before {
  content: ''; width: 3px; height: 15px; border-radius: 2px;
  background: var(--c-primary);
}
.s-section-head .s-total { font-size: 12.5px; color: var(--c-muted); }

.s-grid { display: flex; flex-direction: column; }

.s-row {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 14px;
  border-bottom: 1px solid var(--c-border2);
  border-radius: 10px;
  transition: background .15s;
}
.s-row:hover { background: #f8fafd; }
.s-row-main { flex: 1; min-width: 0; }

.s-row h3 {
  margin: 0 0 5px;
  font-size: 15.5px; line-height: 1.55; font-weight: 600; color: var(--c-text);
  transition: color .15s;
}
.s-row:hover h3 { color: var(--c-primary); }

.s-excerpt {
  margin: 0 0 9px;
  font-size: 13px; color: var(--c-text3); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── 发布时间 / 访问量 元信息行 ───────────── */
.s-meta {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 14px;
  font-size: 12px; color: var(--c-muted);
  letter-spacing: .2px;
}
.s-meta .s-meta-item { display: inline-flex; align-items: center; gap: 5px; }
.s-meta .s-meta-item svg { width: 13px; height: 13px; flex: none; opacity: .75; }
.s-meta .s-meta-num { font-variant-numeric: tabular-nums; }

.s-badge {
  flex: none; padding: 1px 8px; border-radius: 6px;
  background: var(--c-tint); color: var(--c-accent);
  font-size: 11.5px;
}

.s-row-arrow {
  flex: none; color: #c3c9d4; font-size: 20px; line-height: 1;
  transition: transform .15s, color .15s;
}
.s-row:hover .s-row-arrow { transform: translateX(3px); color: var(--c-primary); }

/* 空状态 */
.s-empty {
  padding: 80px 20px; text-align: center; color: var(--c-muted);
}
.s-empty .s-empty-ic { display: block; font-size: 40px; margin-bottom: 14px; }

/* ── 分页器 ────────────────────────────── */
.s-pager {
  max-width: 860px; padding: 22px 0 8px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 7px;
}
.s-pager .s-page {
  min-width: 34px; height: 34px; padding: 0 11px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-border); border-radius: 8px; background: #fff;
  color: var(--c-text2); font-size: 13.5px; cursor: pointer; transition: all .16s;
}
.s-pager button.s-page:hover { border-color: var(--c-primary); color: var(--c-primary); }
.s-pager .s-page.cur {
  background: var(--c-primary); border-color: var(--c-primary); color: #fff; font-weight: 600;
}
.s-pager .s-page.disabled { opacity: .4; cursor: default; }
.s-pager .s-page.gap { border: 0; min-width: 18px; cursor: default; }
.s-pager .s-page.jump { border: 0; background: transparent; color: var(--c-text3); font-size: 12.5px; }
.s-pager .s-page.jump input {
  width: 48px; height: 28px; margin: 0 2px; text-align: center;
  border: 1px solid var(--c-border); border-radius: 7px; font-size: 12.5px;
}

/* ── 文章页 ─────────────────────────────── */
.s-article { max-width: 800px; padding: 2px 0 30px; }

.s-crumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--c-muted); margin-bottom: 20px;
}
.s-crumb a:hover { color: var(--c-primary); }
.s-crumb .s-crumb-sep { opacity: .5; }

.s-article-head { padding-bottom: 20px; border-bottom: 1px solid var(--c-border); }

.s-article-head .s-kicker {
  display: inline-block; margin-bottom: 12px;
  padding: 3px 11px; border-radius: 999px;
  background: var(--c-tint); color: var(--c-primary);
  font-size: 12px; font-weight: 500;
}

.s-article-head h1 {
  margin: 0 0 14px;
  font-size: 28px; line-height: 1.38; font-weight: 650;
  letter-spacing: -.3px;
}

.s-article-head .s-article-lead {
  margin: 0 0 16px;
  font-size: 15px; color: var(--c-text2); line-height: 1.78;
}

.s-article-head .s-meta { font-size: 13px; gap: 18px; }

/* 目录 */
.s-toc {
  margin: 24px 0 4px; padding: 16px 20px;
  background: var(--c-bg); border-radius: 10px;
  border: 1px solid var(--c-border2);
}
.s-toc h4 {
  margin: 0 0 9px; font-size: 12.5px; font-weight: 600;
  color: var(--c-text3); letter-spacing: .5px;
}
.s-toc ol { margin: 0; padding-left: 20px; }
.s-toc li { font-size: 13.5px; margin-bottom: 4px; color: var(--c-text2); }
.s-toc a:hover { color: var(--c-primary); text-decoration: underline; }

/* 正文排版 */
.s-article-body { padding-top: 8px; font-size: 15px; line-height: 1.85; }

.s-article-body h2 {
  margin: 36px 0 13px; font-size: 20px; font-weight: 600;
  scroll-margin-top: 76px;
  display: flex; align-items: center; gap: 9px;
}
.s-article-body h2::before {
  content: ''; width: 3px; height: 16px; border-radius: 2px; flex: none;
  background: var(--c-primary);
}

.s-article-body h3 {
  margin: 24px 0 9px; font-size: 16.5px; font-weight: 600;
  color: var(--c-text);
}

.s-article-body p { margin: 0 0 14px; color: #33363f; }
.s-article-body ul, .s-article-body ol { margin: 0 0 15px; padding-left: 22px; }
.s-article-body li { margin-bottom: 7px; color: #33363f; }
.s-article-body strong { font-weight: 600; color: var(--c-text); }
.s-article-body a { color: var(--c-primary); text-decoration: underline; text-underline-offset: 2px; }

.s-article-body code {
  padding: 2px 6px; border-radius: 5px;
  background: var(--c-bg); border: 1px solid var(--c-border2);
  font-family: SFMono-Regular, Consolas, Monaco, monospace;
  font-size: 12.5px; color: #c7254e;
  word-break: break-all;
}

/* 表格 */
.s-table-wrap {
  margin: 0 0 19px; overflow-x: auto;
  border: 1px solid var(--c-border); border-radius: 10px;
}
.s-article-body table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.s-article-body th, .s-article-body td {
  padding: 10px 14px; text-align: left;
  border-bottom: 1px solid var(--c-border2);
}
.s-article-body th {
  background: var(--c-bg); font-weight: 600;
  color: var(--c-text); white-space: nowrap;
}
.s-article-body tbody tr:last-child td { border-bottom: 0; }
.s-article-body tbody tr:hover { background: #fafbfd; }

/* 配图 */
.s-article-body figure { margin: 20px 0; padding: 0; }
.s-article-body figure img {
  width: 100%; border-radius: 10px;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
}
.s-article-body figure.narrow img {
  max-width: 300px; margin: 0 auto; padding: 22px;
}
.s-article-body figure.shot img {
  width: 100%; padding: 0;
  background: #fff;
  box-shadow: 0 4px 18px rgba(20, 40, 90, .07);
}
.s-article-body figure.qr img { max-width: 190px; margin: 0 auto; padding: 14px; }
.s-article-body figcaption {
  margin-top: 8px; text-align: center;
  font-size: 12px; color: var(--c-muted); line-height: 1.6;
}
.s-figure-row {
  display: grid; gap: 14px; margin: 20px 0;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.s-figure-row figure { margin: 0; }

/* 提示块 */
.s-tip {
  margin: 18px 0; padding: 14px 17px;
  border-radius: 10px; font-size: 14px; line-height: 1.76;
  border-left: 3px solid var(--c-accent);
  background: var(--c-tint);
}
.s-tip .s-tip-title { display: block; font-weight: 600; margin-bottom: 4px; color: var(--c-text); }
.s-tip.warn { background: #fff8ed; border-left-color: #f5a623; }
.s-tip.danger { background: #fff1f0; border-left-color: #e64340; }
.s-tip.ok { background: #f2fbf5; border-left-color: #22a06b; }

/* 未核实标记 */
.s-flag {
  margin: 18px 0; padding: 13px 16px;
  background: #fffbe9; border: 1px dashed #e6c34a; border-radius: 10px;
  font-size: 13.5px; color: #6a5417; line-height: 1.74;
}
.s-flag .s-flag-label {
  display: inline-block; margin-right: 8px;
  padding: 1px 8px; border-radius: 5px;
  background: #e6c34a; color: #fff; font-size: 11px; font-weight: 600;
}

/* 资料来源 */
.s-ref {
  margin: 32px 0 0; padding: 18px 20px;
  background: var(--c-bg); border-radius: 10px;
}
.s-ref h4 { margin: 0 0 10px; font-size: 13.5px; font-weight: 600; }
.s-ref ol { margin: 0; padding-left: 20px; }
.s-ref li {
  font-size: 12.5px; color: var(--c-text3);
  margin-bottom: 6px; line-height: 1.65; word-break: break-all;
}
.s-ref a { color: var(--c-accent); }
.s-ref a:hover { text-decoration: underline; }

/* 相关阅读 */
.s-more { margin-top: 36px; }
.s-more h3 { margin: 0 0 14px; font-size: 17px; font-weight: 600; }
.s-more-grid {
  display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.s-more-card {
  display: block; padding: 13px 15px;
  border: 1px solid var(--c-border); border-radius: 10px;
  transition: all .18s;
}
.s-more-card:hover {
  border-color: rgba(13, 83, 255, .3);
  box-shadow: 0 6px 18px rgba(20, 40, 90, .07);
  transform: translateY(-2px);
}
.s-more-card .s-more-tag {
  display: block; font-size: 11px; color: var(--c-accent); margin-bottom: 4px;
}
.s-more-card .s-more-title {
  display: block; font-size: 13.5px; font-weight: 500;
  line-height: 1.55; color: var(--c-text);
}
.s-more-card .s-meta { margin-top: 7px; font-size: 11px; gap: 10px; }

/* 上下篇 */
.s-prevnext {
  display: grid; gap: 10px; margin-top: 30px;
  grid-template-columns: 1fr 1fr;
}
.s-prevnext a {
  padding: 13px 16px; border-radius: 10px;
  border: 1px solid var(--c-border);
  transition: all .18s; min-width: 0;
}
.s-prevnext a:not(.disabled):hover { border-color: rgba(13, 83, 255, .3); background: #fafbfd; }
.s-prevnext a.disabled { opacity: .45; }
.s-prevnext .s-prevnext-dir { display: block; font-size: 11.5px; color: var(--c-muted); margin-bottom: 3px; }
.s-prevnext .s-prevnext-title {
  display: block; font-size: 13.5px; color: var(--c-text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.s-prevnext .s-prevnext-next { text-align: right; }

.s-back {
  display: inline-flex; align-items: center; gap: 7px;
  margin-top: 28px; padding: 9px 18px;
  border-radius: 8px; background: var(--c-primary); color: #fff;
  font-size: 13.5px; font-weight: 500;
  transition: opacity .2s;
}
.s-back:hover { opacity: .88; }

.s-state { padding: 90px 20px; text-align: center; }
.s-state h2 { margin: 0 0 10px; font-size: 22px; }
.s-state p { color: var(--c-text3); margin: 0 0 8px; }

/* ── 内联 SVG 配图 / 真实照片 ────────────────────── */
.s-article-body .s-figure {
  margin: 20px 0; padding: 14px 16px; background: #fbfcfe;
  border: 1px solid var(--c-border); border-radius: 12px;
}
.s-article-body .s-figure svg { display: block; }
.s-article-body .s-photo {
  margin: 20px 0; padding: 10px; background: #fbfcfe;
  border: 1px solid var(--c-border); border-radius: 12px;
}
.s-article-body .s-photo img {
  display: block; width: 100%; height: auto; border-radius: 8px; object-fit: cover;
  aspect-ratio: 16 / 9;
}
.s-article-body .s-photo figcaption {
  margin-top: 9px; text-align: center; font-size: 12px; color: var(--c-text3);
}
.s-article-body .s-figure figcaption {
  margin-top: 9px; text-align: center; font-size: 12px; color: var(--c-text3);
}

/* ── 页脚 ───────────────────────────────── */
.s-footer {
  border-top: 1px solid var(--c-border);
  background: var(--c-bg);
  padding: 24px 28px;
  font-size: 12px; color: var(--c-muted); line-height: 2;
}
.s-footer-inner { max-width: 1280px; margin: 0 auto; }
.s-footer .s-footer-row { display: flex; flex-wrap: wrap; gap: 8px 14px; }
.s-footer a { color: var(--c-muted); }
.s-footer a:hover { color: var(--c-primary); }
.s-footer .s-footer-line { opacity: .45; }

/* ── 响应式 ─────────────────────────────── */
@media (max-width: 900px) {
  .s-topbar-inner { gap: 16px; padding: 0 16px; height: 56px; }
  .s-menu { display: none; }
  .s-wiki { display: block; }
  .s-side {
    position: static; height: auto;
    border-right: 0; border-bottom: 1px solid var(--c-border);
    padding: 14px 16px;
  }
  .s-side-title { display: none; }
  .s-side-nav { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .s-nav-item {
    border: 1px solid var(--c-border); border-radius: 999px;
    padding: 4px 11px; margin-bottom: 0; font-size: 12.5px;
  }
  .s-nav-item .s-nav-count { display: none; }
  .s-content { padding: 24px 18px 60px; }
  .s-doc-head h1 { font-size: 24px; }
  .s-article-head h1 { font-size: 22px; }
  .s-article-body { font-size: 14.5px; }
  .s-prevnext { grid-template-columns: 1fr; }
  .s-prevnext .s-prevnext-next { text-align: left; }
  .s-pager { gap: 5px; }
  .s-pager .s-page { min-width: 31px; height: 31px; padding: 0 8px; font-size: 12.5px; }
  .s-pager .s-page.jump { display: none; }
}

@media print {
  .s-topbar, .s-footer, .s-prevnext, .s-more, .s-back, .s-side, .s-pager { display: none; }
  .s-wiki { display: block; }
  .s-article { max-width: none; }
}