.page-faq {
  --faq-panel: rgba(20, 33, 58, 0.72);
  --faq-panel-strong: rgba(26, 42, 72, 0.9);
  --faq-line-soft: rgba(30, 44, 73, 0.85);
  --faq-glow-o: rgba(255, 106, 31, 0.22);
  --faq-glow-t: rgba(22, 199, 154, 0.16);
  position: relative;
  display: block;
  background: var(--bg-base);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq .mono,
.page-faq .faq-stat__num,
.page-faq .faq-chip__count,
.page-faq .accordion__index,
.page-faq .faq-group__index,
.page-faq .faq-hero__eyebrow,
.page-faq .faq-cta__eyebrow,
.page-faq .faq-toolbar__status {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.14em;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(40px, 7vw, 84px) 0 clamp(36px, 6vw, 68px);
  overflow: hidden;
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.24;
  filter: saturate(0.85) contrast(1.05);
}

.page-faq .faq-hero__glow {
  position: absolute;
  inset: -10% -20% -30%;
  z-index: -1;
  background:
    radial-gradient(ellipse 52% 58% at 82% 18%, var(--faq-glow-o), transparent 62%),
    radial-gradient(ellipse 46% 52% at 8% 88%, var(--faq-glow-t), transparent 64%),
    linear-gradient(180deg, rgba(5, 10, 22, 0.55) 0%, rgba(5, 10, 22, 0.86) 62%, var(--bg-base) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--signal);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 1.02;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 20px 0 0;
  color: var(--text-muted);
  font-size: 17px;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 40px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 24px;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-stat__num {
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--teal);
}

.page-faq .faq-stat:first-child .faq-stat__num {
  color: var(--signal);
}

.page-faq .faq-stat__label {
  font-size: 14px;
  color: var(--text-muted);
}

/* ---------- 筛选工具条 ---------- */

.page-faq .faq-toolbar {
  position: relative;
  z-index: 2;
  padding: 20px 0 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-toolbar__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--faq-panel);
  backdrop-filter: blur(8px);
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(255, 106, 31, 0.18);
}

.page-faq .faq-search__icon {
  display: inline-flex;
  color: var(--text-muted);
  flex: none;
}

.page-faq .faq-search__label {
  font-size: 11px;
  color: var(--text-muted);
  flex: none;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 14px 0;
  border: 0;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(147, 163, 191, 0.7);
}

.page-faq .faq-search__input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq-search__clear {
  flex: none;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-faq .faq-search__clear:hover,
.page-faq .faq-search__clear:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-faq .faq-chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 8px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 14px;
  white-space: nowrap;
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .faq-chip:hover {
  color: var(--text);
  border-color: rgba(255, 106, 31, 0.5);
}

.page-faq .faq-chip:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-faq .faq-chip.is-active {
  color: var(--bg-base);
  background: var(--signal);
  border-color: var(--signal);
}

.page-faq .faq-chip__count {
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(147, 163, 191, 0.16);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: inherit;
}

.page-faq .faq-chip.is-active .faq-chip__count {
  background: rgba(5, 10, 22, 0.24);
}

.page-faq .faq-toolbar__status {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted);
}

/* ---------- 问题主体 ---------- */

.page-faq .faq-body {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 72px);
}

.page-faq .faq-group {
  position: relative;
  padding: clamp(28px, 4vw, 44px) 0;
  border-top: 1px solid var(--faq-line-soft);
  scroll-margin-top: 120px;
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group[hidden] {
  display: none;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "index title"
    "index lede";
  column-gap: 18px;
  row-gap: 4px;
  align-items: baseline;
  margin-bottom: 20px;
}

.page-faq .faq-group__index {
  grid-area: index;
  font-size: 12px;
  color: var(--signal);
  padding-top: 10px;
}

.page-faq .faq-group__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.15;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-faq .faq-group__lede {
  grid-area: lede;
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
}

.page-faq .faq-group__stack {
  display: grid;
  gap: 20px;
}

/* ---------- 手风琴 ---------- */

.page-faq .accordion {
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .accordion__item {
  position: relative;
  border-bottom: 1px solid var(--faq-line-soft);
  transition: background-color 160ms var(--ease);
}

.page-faq .accordion__item[hidden] {
  display: none;
}

.page-faq .accordion__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--signal), var(--signal-soft));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 160ms var(--ease);
}

.page-faq .accordion__item.is-open::before {
  transform: scaleY(1);
}

.page-faq .accordion__item.is-open {
  background: linear-gradient(90deg, rgba(255, 106, 31, 0.07), transparent 46%);
}

.page-faq .accordion__heading {
  margin: 0;
  font-size: inherit;
  font-weight: 400;
}

.page-faq .accordion__trigger {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 16px;
  width: 100%;
  padding: 18px 12px 18px 18px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color 160ms var(--ease);
}

.page-faq .accordion__trigger:hover {
  color: var(--white);
}

.page-faq .accordion__trigger:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .accordion__index {
  font-size: 11px;
  color: var(--text-muted);
  padding-top: 5px;
  transition: color 160ms var(--ease);
}

.page-faq .accordion__item.is-open .accordion__index {
  color: var(--signal);
}

.page-faq .accordion__question {
  font-weight: 500;
}

.page-faq .accordion__caret {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-faq .accordion__caret::before,
.page-faq .accordion__caret::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 1.5px;
  background: var(--text-muted);
  transform: translate(-50%, -50%);
  transition: transform 160ms var(--ease), background-color 160ms var(--ease);
}

.page-faq .accordion__caret::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .accordion__item.is-open .accordion__caret {
  border-color: var(--signal);
}

.page-faq .accordion__item.is-open .accordion__caret::before,
.page-faq .accordion__item.is-open .accordion__caret::after {
  background: var(--signal);
}

.page-faq .accordion__item.is-open .accordion__caret::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .accordion__panel {
  padding: 0 24px 20px 66px;
  color: var(--text-muted);
  font-size: 15.5px;
}

.page-faq .accordion[data-faq-ready] .accordion__panel {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 160ms var(--ease), opacity 160ms var(--ease), padding 160ms var(--ease);
}

.page-faq .accordion[data-faq-ready] .accordion__panel.is-open {
  max-height: 460px;
  padding-top: 2px;
  padding-bottom: 22px;
  opacity: 1;
}

.page-faq .accordion__panel p {
  margin: 0;
}

.page-faq .accordion__panel a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 199, 154, 0.4);
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-faq .accordion__panel a:hover,
.page-faq .accordion__panel a:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-faq .accordion__item mark {
  padding: 0 2px;
  border-radius: 3px;
  background: rgba(255, 194, 75, 0.28);
  color: var(--white);
}

/* ---------- 图注容器 ---------- */

.page-faq .faq-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--faq-panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: 0.9;
}

.page-faq .media-frame__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- 空状态 ---------- */

.page-faq .faq-empty {
  margin: 32px 0 0;
  padding: 22px 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: var(--faq-panel);
  color: var(--text-muted);
  font-size: 15px;
}

.page-faq .faq-empty[hidden] {
  display: none;
}

.page-faq .faq-empty a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 31, 0.45);
}

/* ---------- 收尾主题带 ---------- */

.page-faq .faq-cta {
  position: relative;
  margin-top: 12px;
  padding: clamp(32px, 5vw, 56px) 0 clamp(40px, 6vw, 64px);
  border-top: 1px solid var(--faq-line-soft);
  background:
    radial-gradient(ellipse 60% 100% at 12% 0%, var(--faq-glow-o), transparent 66%),
    radial-gradient(ellipse 60% 100% at 92% 100%, var(--faq-glow-t), transparent 68%),
    var(--bg-layer);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 24px;
}

.page-faq .faq-cta__eyebrow {
  margin: 0 0 8px;
  font-size: 11px;
  color: var(--signal);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-faq .faq-cta__lede {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 15px;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta__actions .btn {
  min-width: 0;
}

/* ---------- 窄屏 ---------- */

@media (max-width: 719px) {
  .page-faq .faq-group__head {
    grid-template-columns: 1fr;
    grid-template-areas:
      "index"
      "title"
      "lede";
    row-gap: 6px;
  }

  .page-faq .faq-group__index {
    padding-top: 0;
  }

  .page-faq .accordion__trigger {
    grid-template-columns: auto 1fr;
    gap: 12px;
    padding: 16px 10px 16px 14px;
    font-size: 15px;
  }

  .page-faq .accordion__caret {
    grid-column: 1;
    grid-row: 2;
    margin: 2px 0 0;
    justify-self: start;
  }

  .page-faq .accordion__panel {
    padding-left: 44px;
    padding-right: 14px;
  }

  .page-faq .faq-hero__stats {
    gap: 10px 24px;
  }

  .page-faq .faq-stat__num {
    font-size: 24px;
  }

  .page-faq .faq-cta__actions .btn {
    flex: 1 1 100%;
  }
}

/* ---------- 宽屏：图注与双栏 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-toolbar__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "search status"
      "chips chips";
    align-items: center;
    gap: 12px 20px;
  }

  .page-faq .faq-search {
    grid-area: search;
  }

  .page-faq .faq-chips {
    grid-area: chips;
  }

  .page-faq .faq-toolbar__status {
    grid-area: status;
    text-align: right;
    white-space: nowrap;
  }

  .page-faq .faq-group__stack {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-group__lede {
    max-width: 70ch;
  }

  .page-faq .accordion__panel {
    max-width: 78ch;
  }
}
<<<END>>>