/* FAQ 分类 / 标签筛选与列表 — 桌面 + 移动 + 夜间（html[data-theme="dark"]） */

/* FAQ 无右侧边栏：主栏单独居中（与全站 header 宽度协调） */
#mainBody.vpn-faq-page #content {
  width: 100% !important;
  max-width: 960px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  padding-left: 20px !important;
  padding-right: 20px !important;
  box-sizing: border-box !important;
  float: none !important;
}

#mainBody.vpn-faq-page #content #maincol {
  width: 100% !important;
  max-width: 100% !important;
  float: none !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* 若其它模板仍输出 #sidecol，FAQ 页隐藏 */
#mainBody.vpn-faq-page #content #sidecol {
  display: none !important;
}

:root {
  --faq-panel-bg: #f0f3f8;
  --faq-panel-border: #e0e5ed;
  --faq-text: #1f3244;
  --faq-muted: #5a6573;
  --faq-accent: #357ce6;
  --faq-accent-soft: rgba(53, 124, 230, 0.1);
  --faq-tag-bg: #ffffff;
  --faq-tag-border: #d5dbe5;
  --faq-chip-bg: #eef2f7;
  --faq-chip-tag-bg: #ffffff;
  --faq-active-bar-bg: rgba(53, 124, 230, 0.08);
  --faq-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

html[data-theme="dark"] {
  --faq-panel-bg: var(--dm-surface, #363c44);
  --faq-panel-border: var(--dm-border, #4a5159);
  --faq-text: var(--dm-text, #e8eaed);
  --faq-muted: var(--dm-muted, #9aa0a6);
  --faq-accent: var(--dm-link, #8ab4f8);
  --faq-accent-soft: rgba(138, 180, 248, 0.14);
  --faq-tag-bg: var(--dm-elevated, #3f464f);
  --faq-tag-border: var(--dm-border, #4a5159);
  --faq-chip-bg: var(--dm-elevated, #3f464f);
  --faq-chip-tag-bg: var(--dm-surface, #363c44);
  --faq-active-bar-bg: rgba(138, 180, 248, 0.1);
  --faq-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

/* ---------- 桌面布局 ---------- */

.faq-page-wrap {
  display: flex;
  flex-wrap: nowrap;
  gap: 1.25rem;
  align-items: flex-start;
  max-width: 100%;
}

.faq-page-sidebar {
  flex: 0 0 210px;
  max-width: 100%;
  position: sticky;
  top: 1rem;
  padding: 1.1rem 1.15rem 1.35rem;
  background: var(--faq-panel-bg);
  border: 1px solid var(--faq-panel-border);
  border-radius: 12px;
  font-size: 14px;
  box-shadow: var(--faq-shadow);
}

.faq-page-sidebar h2 {
  margin: 0 0 0.65rem;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--faq-muted);
  text-transform: uppercase;
}

.faq-cat-list {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
}

.faq-cat-list li {
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--faq-panel-border);
}

.faq-cat-list li:last-child {
  border-bottom: 0;
}

.faq-cat-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.2rem;
  color: var(--faq-text);
  text-decoration: none;
  border-radius: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}

.faq-cat-list a:hover {
  color: var(--faq-accent);
  background: var(--faq-accent-soft);
}

.faq-cat-list a.is-active {
  color: var(--faq-accent);
  font-weight: 600;
  background: var(--faq-accent-soft);
}

html[data-theme="dark"] .faq-cat-list a {
  color: var(--faq-text) !important;
}

html[data-theme="dark"] .faq-cat-list a:hover,
html[data-theme="dark"] .faq-cat-list a.is-active {
  color: var(--faq-accent) !important;
}

.faq-cat-count {
  font-size: 11px;
  font-weight: 500;
  color: var(--faq-muted);
  background: var(--faq-accent-soft);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  min-width: 1.5rem;
  text-align: center;
}

.faq-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.faq-tag-cloud a {
  display: inline-block;
  padding: 0.3rem 0.65rem;
  font-size: 12px;
  line-height: 1.35;
  border-radius: 999px;
  border: 1px solid var(--faq-tag-border);
  background: var(--faq-tag-bg);
  color: var(--faq-text);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.faq-tag-cloud a:hover {
  border-color: var(--faq-accent);
  color: var(--faq-accent);
}

.faq-tag-cloud a.is-active {
  background: var(--faq-accent);
  border-color: var(--faq-accent);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(53, 124, 230, 0.22);
}

/* 夜间下覆盖全局 body a 的链接色，保持标签按钮可读 */
html[data-theme="dark"] .faq-tag-cloud a {
  color: var(--faq-text) !important;
  text-decoration: none !important;
}

html[data-theme="dark"] .faq-tag-cloud a:hover {
  color: var(--faq-accent) !important;
}

html[data-theme="dark"] .faq-tag-cloud a.is-active {
  color: #fff !important;
  background: var(--faq-accent);
  border-color: var(--faq-accent);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.faq-page-main {
  flex: 1 1 440px;
  min-width: 0;
}

.faq-active-bar {
  margin-bottom: 1.1rem;
  padding: 0.6rem 0.9rem;
  background: var(--faq-active-bar-bg);
  border: 1px solid var(--faq-panel-border);
  border-radius: 10px;
  font-size: 13px;
  color: var(--faq-text);
}

.faq-active-bar a {
  margin-left: 0.5rem;
  color: var(--faq-accent);
  font-weight: 500;
}

html[data-theme="dark"] .faq-active-bar a {
  color: var(--faq-accent) !important;
}

.faq-chip-mini {
  display: inline-block;
  font-size: 11px;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background: var(--faq-chip-bg);
  color: var(--faq-muted);
}

.faq-chip-mini.tag {
  background: var(--faq-chip-tag-bg);
  border: 1px solid var(--faq-panel-border);
  color: var(--faq-text);
}

/* 折叠区正文（与 blog / 全局夜间协调） */
.faq .faq-answer {
  color: var(--faq-text);
}

html[data-theme="dark"] .faq .faq-answer {
  color: var(--dm-text, #e8eaed) !important;
}

html[data-theme="dark"] .faq .faq-answer p,
html[data-theme="dark"] .faq .faq-answer li,
html[data-theme="dark"] .faq .faq-answer td {
  color: var(--dm-text, #e8eaed) !important;
}

html[data-theme="dark"] .faq .faq-answer a {
  color: var(--dm-link, #8ab4f8) !important;
}

html[data-theme="dark"] .faq .faq-link a {
  color: var(--dm-link, #8ab4f8) !important;
}

html[data-theme="dark"] .faq .question {
  color: var(--dm-link, #8ab4f8) !important;
}

/* ---------- 移动 FAQ 筛选 ---------- */

.faq-mobile-filters {
  margin-bottom: 0.28rem;
  padding: 0.12rem 0 0.08rem;
}

.faq-mobile-section-label {
  margin: 0 0 0.14rem;
  padding: 0 0.04rem;
  font-size: 0.22rem;
  font-weight: 600;
  color: var(--faq-muted);
  letter-spacing: 0.02em;
}

.faq-mobile-section-label--tags {
  margin-top: 0.22rem;
}

.faq-mobile-cats {
  margin: 0 0 0.12rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.faq-mobile-cats::-webkit-scrollbar {
  display: none;
}

.faq-mobile-cats-inner {
  display: flex;
  gap: 0.14rem;
  flex-wrap: nowrap;
  padding: 0.04rem 0 0.12rem;
  width: max-content;
  max-width: 100%;
}

.faq-mobile-pill {
  flex: 0 0 auto;
  padding: 0.16rem 0.28rem;
  border-radius: 999px;
  font-size: 0.24rem;
  font-weight: 500;
  text-decoration: none !important;
  border: 1px solid var(--faq-panel-border);
  background: var(--faq-tag-bg);
  color: var(--faq-text);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
  -webkit-tap-highlight-color: transparent;
}

.faq-mobile-pill:hover {
  border-color: var(--faq-accent);
  color: var(--faq-accent);
}

/* 分类选中：与标签区统一为「实心强调色 + 白字 + 轻阴影」 */
.faq-mobile-pill.is-active {
  background: var(--faq-accent);
  border-color: var(--faq-accent);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(53, 124, 230, 0.28);
}

html[data-theme="dark"] .faq-mobile-pill.is-active {
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

/* 标签区：横向滑动，避免多列挤成一团 */
.faq-mobile-tag-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 -0.04rem 0.2rem;
  padding: 0 0.04rem 0.1rem;
  scrollbar-width: thin;
}

.faq-mobile-tag-scroll .faq-mobile-tag-cloud {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.14rem;
  width: max-content;
  max-width: none;
  margin-bottom: 0;
}

.faq-mobile-tag-scroll .faq-mobile-tag-cloud a {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 0.14rem 0.24rem;
  font-size: 0.22rem;
  font-weight: 500;
  line-height: 1.35;
  border-radius: 999px;
  border: 1px solid var(--faq-tag-border);
  background: var(--faq-tag-bg);
  color: var(--faq-text);
  text-decoration: none !important;
  border-bottom: none !important;
  box-shadow: none;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.faq-mobile-tag-scroll .faq-mobile-tag-cloud a.is-active {
  background: var(--faq-accent);
  border-color: var(--faq-accent);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(53, 124, 230, 0.28);
}

html[data-theme="dark"] .faq-mobile-tag-scroll .faq-mobile-tag-cloud a.is-active {
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

html[data-theme="dark"] .faq-mobile-tag-scroll .faq-mobile-tag-cloud a:not(.is-active) {
  color: var(--faq-text) !important;
  border-color: var(--dm-border, #4a5159);
}

.faq-mobile-active-bar {
  margin-bottom: 0.18rem;
}

/* 移动 FAQ 整页：更大左右留白、列表不再贴边 */
.faq-mobile-page .con {
  padding: 0.24rem 0.4rem 3rem !important;
  box-sizing: border-box;
}

.faq-mobile-page .con > b {
  padding: 0 0.08rem;
  box-sizing: border-box;
}

.faq-mobile-page .con select {
  font-size: 0.24rem;
  padding: 0.06rem 0.12rem;
  border-radius: 6px;
  border: 1px solid var(--faq-panel-border);
  background: var(--faq-tag-bg);
  color: var(--faq-text);
}

html[data-theme="dark"] .faq-mobile-page .con select {
  background: var(--dm-elevated, #3f464f) !important;
  border-color: var(--dm-border, #4a5159) !important;
  color: var(--dm-text, #e8eaed) !important;
}

/* 问题行：用 flex 替代 float，避免标题贴屏幕边缘 */
.faq-mobile-page .help {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  padding: 0.2rem 0.08rem 0.28rem;
  margin-bottom: 0.12rem !important;
  border-bottom: 1px solid var(--faq-panel-border);
  box-sizing: border-box;
}

.faq-mobile-page .help:last-of-type {
  border-bottom: 0;
}

.faq-mobile-page .help .pic_q {
  float: none !important;
  flex-shrink: 0;
  width: 0.32rem !important;
  height: 0.32rem !important;
  margin: 0.06rem 0.14rem 0 0 !important;
}

.faq-mobile-page .help h3 {
  float: none !important;
  width: calc(100% - 0.5rem) !important;
  flex: 1 1 calc(100% - 0.5rem);
  max-width: 100%;
  margin: 0 0 0.12rem 0 !important;
  padding-right: 0.12rem;
  box-sizing: border-box;
  line-height: 1.45 !important;
  font-weight: 600;
  color: var(--faq-text);
}

.faq-mobile-page .help h3.faq-mobile-qhead {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.faq-mobile-page .help .open {
  clear: none !important;
}

.faq-mobile-page .help .faq-answer {
  float: none !important;
  width: 100% !important;
  padding: 0.12rem 0 0 0 !important;
  margin: 0 !important;
  clear: both;
  line-height: 1.55 !important;
  color: var(--faq-muted);
}

.faq-mobile-paging {
  text-align: center;
  padding: 0.3rem 0.2rem 0.5rem;
  font-size: 0.24rem;
}

.faq-mobile-paging a {
  color: var(--faq-accent);
  padding: 0 0.08rem;
}

html[data-theme="dark"] .faq-mobile-page {
  background: var(--dm-bg, #2d3238);
}

html[data-theme="dark"] .faq-mobile-page .help {
  border-bottom-color: var(--dm-border, #4a5159);
}

/* 移动页 .FAQ 标题与列表（夜间） */
html[data-theme="dark"] .FAQ .con b {
  color: var(--dm-text, #e8eaed) !important;
}

html[data-theme="dark"] .FAQ .con .help h3 {
  color: var(--dm-text, #e8eaed) !important;
}

html[data-theme="dark"] .FAQ .con .help .faq-answer {
  color: var(--dm-text, #e8eaed) !important;
}

html[data-theme="dark"] .FAQ .con .help .faq-answer p,
html[data-theme="dark"] .FAQ .con .help .faq-answer li,
html[data-theme="dark"] .FAQ .con .help .faq-answer td,
html[data-theme="dark"] .FAQ .con .help .faq-answer div {
  color: inherit !important;
}

html[data-theme="dark"] .FAQ .con .help .faq-answer a {
  color: var(--dm-link, #8ab4f8) !important;
}

html[data-theme="dark"] .FAQ .con .open {
  color: var(--dm-link, #8ab4f8) !important;
}

/* ---------- 响应式 ---------- */

@media (min-width: 1200px) {
  .faq-page-wrap {
    gap: 1.75rem;
  }

  .faq-page-sidebar {
    flex: 0 0 230px;
  }
}

/* 平板 / 窄屏：筛选区与问题列表上下排列 */
@media (max-width: 900px) {
  .faq-page-wrap {
    flex-direction: column;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .faq-page-sidebar {
    position: static;
    flex: 1 1 auto;
    width: 100%;
    box-shadow: var(--faq-shadow);
  }
}

/* 键盘聚焦 */
.faq-cat-list a:focus-visible,
.faq-tag-cloud a:focus-visible,
.faq-mobile-pill:focus-visible {
  outline: 2px solid var(--faq-accent);
  outline-offset: 2px;
}