/* ============================================================
   faqx.css · FAQ 分类筛选组件（FAQ / DIY 问答共用）
   纯追加覆盖层：只新增 .faqx- 前缀类，不改任何既有样式。
   列表本体复用页面既有 .v4-faq details 样式，本文件只负责
   Tab 栏 / 搜索框 / 状态行 / 加载更多 / 空状态。
   ============================================================ */

.faqx { margin: 0 0 8px; }

/* ---------- 顶部工具行：Tab 栏 + 搜索框 ---------- */
.faqx-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.faqx-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 0;
}

.faqx-tab {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .18s, color .18s, border-color .18s;
  white-space: nowrap;
}
.faqx-tab:hover { border-color: var(--navy); color: var(--navy); }
.faqx-tab[aria-selected="true"] {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.faqx-search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 1 240px;
  min-width: 180px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 7px 12px;
  transition: border-color .18s, box-shadow .18s;
}
.faqx-search:focus-within {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(10, 49, 100, .08);
}
.faqx-search .ico { flex: none; color: var(--muted); }
.faqx-input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font: inherit;
  font-size: 13.5px;
  color: var(--navy);
}
.faqx-input::placeholder { color: var(--muted); }

/* ---------- 状态行（aria-live） ---------- */
.faqx-status {
  font-size: 12.5px;
  color: var(--muted);
  margin: 0 0 12px;
}
.faqx-status strong { color: var(--navy); }

/* ---------- 列表本体：复用 .v4-faq 既有 details 样式 ---------- */
.faqx-list { margin-bottom: 16px; }
.faqx-list[hidden] { display: none; }

/* ---------- 加载更多 ---------- */
.faqx-more-row { text-align: center; }
.faqx-more {
  appearance: none;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  background: #fff;
  border: 1.5px solid var(--navy);
  border-radius: 10px;
  padding: 10px 26px;
  cursor: pointer;
  transition: background .18s, color .18s, opacity .18s;
}
.faqx-more:hover { background: var(--navy); color: #fff; }
.faqx-more:focus-visible,
.faqx-tab:focus-visible,
.faqx-input:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* ---------- 空状态 ---------- */
.faqx-empty {
  border: 1.5px dashed var(--line);
  border-radius: 14px;
  background: var(--panel);
  text-align: center;
  padding: 34px 20px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
}
.faqx-empty strong { display: block; font-size: 15px; color: var(--navy); margin-bottom: 4px; }
.faqx-empty[hidden] { display: none; }

/* ---------- 屏幕阅读器专用 ---------- */
.faqx-sronly {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 移动端 ---------- */
@media (max-width: 560px) {
  .faqx-tools { gap: 10px; }
  .faqx-tab { padding: 7px 12px; font-size: 12.5px; }
  .faqx-search { flex-basis: 100%; order: -1; }
  .faqx-more { width: 100%; }
}

/* ============================================================
   b79 · 卡片模式（仅 data-faqx="diy" 启用，见 faqx.js cardMode）
   固定高度缩略卡 → 点开弹层看全文；不再原地展开/收起。
   正文完整保留在 .fc-a 里，line-clamp 只做视觉截断。
   ============================================================ */

/* 列表：等高网格，卡片之间不再高矮不齐 */
.faqx-cards { align-items: stretch; }

.faq-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 154px;
  padding: 16px 18px 13px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, .04);
  cursor: pointer;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.faq-card:hover {
  border-color: #DCE3EA;
  box-shadow: 0 14px 30px -18px rgba(10, 37, 64, .28);
  transform: translateY(-1px);
}
.faq-card:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.faq-card .fc-head {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  min-height: 44px;          /* 标题固定占两行高度，正文起点统一 */
}
.faq-card .fc-head .no {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #F1F3F5;
  color: var(--navy);
  font-size: 11.5px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.faq-card .fc-head .q {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
  color: #111;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.faq-card .fc-a {
  margin: 9px 0 0 37px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.faq-card .fc-a strong { color: #111; font-weight: 600; }

.faq-card .fc-more {
  margin-top: auto;
  margin-left: 37px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--gold-ink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.faq-card .fc-more .ico { width: 13px; height: 13px; }
.faq-card:hover .fc-more { color: var(--gold); }

/* ---------- 全文弹层 ---------- */
body.faq-modal-open { overflow: hidden; }

.faq-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.faq-modal[hidden] { display: none; }

.fm-mask {
  position: absolute;
  inset: 0;
  background: rgba(8, 25, 45, .52);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.fm-panel {
  position: relative;
  width: min(660px, 100%);
  max-height: min(78vh, 700px);
  overflow-y: auto;
  background: #fff;
  border-radius: 18px;
  padding: 26px 28px 18px;
  box-shadow: 0 40px 80px -30px rgba(8, 25, 45, .55);
  animation: fmIn .24s ease;
}
@keyframes fmIn {
  from { opacity: 0; transform: translateY(10px) scale(.985); }
  to { opacity: 1; transform: none; }
}

.fm-x {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 19px;
  line-height: 1;
  cursor: pointer;
  transition: color .18s, border-color .18s;
}
.fm-x:hover { color: var(--navy); border-color: var(--navy); }

.fm-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.fm-no {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--red);
  color: var(--ink);
  font-size: 11.5px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.fm-cat {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 9px;
}
.fm-cat[hidden] { display: none; }

.fm-q {
  margin: 0 40px 12px 0;
  font-size: 20px;
  line-height: 1.45;
  font-weight: 800;
  color: var(--navy);
}
.fm-a {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--muted);
}
.fm-a strong { color: #111; font-weight: 600; }
.fm-a a { color: var(--gold-ink); font-weight: 600; }

.fm-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.fm-nav {
  appearance: none;
  font: inherit;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 7px 14px;
  cursor: pointer;
  transition: border-color .18s, color .18s;
}
.fm-nav:hover:not(:disabled) { border-color: var(--navy); }
.fm-nav:disabled { opacity: .38; cursor: default; }
.fm-pos { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

@media (max-width: 640px) {
  /* 单列时标题可能三行，放宽并按内容自适应高度 */
  .faq-card { height: auto; padding: 15px 16px 12px; }
  .faq-card .fc-head { min-height: 44px; }   /* 两行标题位，单列卡片也等高 */
  .faq-card .fc-head .q { font-size: 14.5px; }
  .faq-card .fc-a { margin-left: 0; margin-top: 8px; font-size: 13px; }
  .faq-card .fc-more { margin-left: 0; margin-top: 10px; }
  .faq-modal { padding: 14px; }
  .fm-panel { padding: 22px 18px 14px; max-height: 84vh; }
  .fm-q { font-size: 17.5px; margin-right: 34px; }
  .fm-a { font-size: 14px; line-height: 1.9; }
}