.page-faq {
  --faq-bar: 3px;
  --faq-radius: 2px;
  --faq-item-bg: linear-gradient(180deg, rgba(20, 69, 58, 0.45) 0%, rgba(14, 43, 36, 0.30) 100%);
  --faq-item-bg-open: linear-gradient(180deg, rgba(20, 69, 58, 0.72) 0%, rgba(14, 43, 36, 0.50) 100%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 34px 0 42px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(92% 84% at 94% -12%, rgba(40, 240, 200, 0.14), transparent 62%),
    linear-gradient(180deg, var(--c-ink) 0%, var(--c-carbon) 100%);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .faq-hero-copy .breadcrumbs {
  margin-bottom: 18px;
}

.page-faq .faq-hero-lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-body);
}

.page-faq .faq-hero-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--c-ink);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 筛选区 ---------- */
.page-faq .faq-browser {
  padding-top: 34px;
  padding-bottom: 0;
}

.page-faq .faq-browser-bar {
  display: grid;
  gap: 16px;
  padding: 16px;
}

.page-faq .faq-search {
  min-width: 0;
}

.page-faq .faq-search-input {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.4;
  color: var(--c-mist);
  background: rgba(11, 15, 14, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  padding: 12px 14px;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-faq .faq-search-input::placeholder {
  color: var(--c-neutral);
}

.page-faq .faq-search-input:focus {
  outline: none;
  border-color: var(--c-cyan);
  background: rgba(11, 15, 14, 0.82);
}

.page-faq .faq-search-hint {
  margin: 8px 0 0;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--c-neutral);
}

.page-faq .faq-tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  font-family: inherit;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--c-body);
  background: rgba(232, 241, 237, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 16px;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-faq .faq-tab:hover {
  color: var(--c-mist);
  border-color: var(--glass-line);
}

.page-faq .faq-tab[aria-pressed="true"] {
  color: var(--c-carbon);
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  font-weight: 600;
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

/* ---------- 正文双栏 ---------- */
.page-faq .faq-main {
  padding-top: 32px;
  padding-bottom: 0;
}

.page-faq .faq-body {
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-faq .faq-list {
  min-width: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: 40px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-mist);
}

.page-faq .faq-group-count {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-neutral);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  position: relative;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--faq-item-bg);
  overflow: hidden;
  transition: border-color var(--t-base), background var(--t-base), transform var(--t-base);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--faq-bar);
  background: var(--bar, var(--c-cyan));
}

.page-faq .faq-item:hover {
  border-color: var(--glass-line);
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  background: var(--faq-item-bg-open);
  border-color: var(--glass-line);
}

.page-faq .faq-item[data-cat="schedule"] { --bar: var(--c-cyan); }
.page-faq .faq-item[data-cat="subscribe"] { --bar: var(--c-orange); }
.page-faq .faq-item[data-cat="records"] { --bar: var(--c-mist); }
.page-faq .faq-item[data-cat="live"] { --bar: var(--c-neutral); }

.page-faq .faq-q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 46px 16px 22px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-mist);
  cursor: pointer;
  list-style: none;
  transition: color var(--t-fast);
}

.page-faq .faq-q::-webkit-details-marker {
  display: none;
}

.page-faq .faq-q:hover {
  color: var(--c-cyan);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-faq .faq-q-text {
  min-width: 0;
}

.page-faq .faq-q-icon {
  position: absolute;
  right: 20px;
  top: 22px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
  transform: rotate(45deg);
  transition: transform var(--t-base);
}

.page-faq .faq-item[open] .faq-q-icon {
  transform: rotate(-135deg);
}

.page-faq .faq-a {
  padding: 0 22px 18px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--c-body);
  animation: faq-fade-in var(--t-base) ease-out both;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  max-width: 64ch;
}

.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-path {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.6;
}

.page-faq .faq-path a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--glass-line);
  padding-bottom: 1px;
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-faq .faq-path a::after {
  content: " →";
}

.page-faq .faq-path a:hover {
  border-bottom-color: var(--c-cyan);
}

.page-faq .faq-path a:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

@keyframes faq-fade-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side {
  min-width: 0;
}

.page-faq .faq-side-card {
  padding: 20px;
}

.page-faq .faq-side-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-mist);
}

.page-faq .faq-side-text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-body);
}

.page-faq .faq-side-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-body);
}

.page-faq .faq-side-list li {
  position: relative;
  padding-left: 17px;
}

.page-faq .faq-side-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--c-cyan);
  transform: rotate(45deg);
}

.page-faq .faq-side-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 联系区 ---------- */
.page-faq .faq-help {
  margin-top: 52px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--c-carbon) 0%, var(--c-ink) 100%);
  padding-top: 42px;
}

.page-faq .faq-help-head {
  margin-bottom: 26px;
}

.page-faq .faq-help-grid {
  display: grid;
  gap: 18px;
}

.page-faq .faq-help-contact {
  padding: 22px;
  min-width: 0;
}

.page-faq .faq-help-sub {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-mist);
}

.page-faq .faq-contact-row {
  display: grid;
  gap: 4px;
  padding-bottom: 13px;
  margin-bottom: 13px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-contact-row:last-of-type {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-neutral);
}

.page-faq .faq-contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-mist);
  word-break: break-word;
}

.page-faq .faq-contact-value a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--glass-line);
}

.page-faq .faq-contact-value a:hover {
  border-bottom-color: var(--c-cyan);
}

.page-faq .faq-contact-value a:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-faq .faq-help-list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-body);
}

.page-faq .faq-help-list li {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-help-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--c-orange);
  transform: rotate(45deg);
}

.page-faq .faq-help-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-neutral);
}

.page-faq .faq-help-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--glass-line);
}

.page-faq .faq-help-note a:hover {
  border-bottom-color: var(--c-cyan);
}

.page-faq .faq-help-media {
  margin: 40px 0 0;
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-help-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  opacity: 0.85;
}

/* ---------- 回到顶部 ---------- */
.page-faq .faq-to-top-wrap {
  display: flex;
  justify-content: flex-end;
  padding: 0 20px 24px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 44px 0 52px;
  }

  .page-faq .faq-tabs {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .page-faq .faq-help-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 20px;
  }

  .page-faq .faq-to-top-wrap {
    padding-right: 32px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 56px 0 62px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-hero-media {
    align-self: stretch;
  }

  .page-faq .faq-hero-media img {
    height: 100%;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 44px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-help {
    padding-top: 52px;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }

  .page-faq .faq-item:hover {
    border-color: var(--line);
  }
}