.page-faq {
  position: relative;
  padding-bottom: var(--sp-6);
  color: var(--c-white);
}

.page-faq .container {
  width: min(100% - 32px, var(--shell));
  margin-inline: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-4);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-3);
}

.page-faq .faq-hero-main .eyebrow {
  margin: 0 0 var(--sp-2);
  font-size: var(--fs-micro);
  letter-spacing: 0.28em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.page-faq .faq-hero-main .display-title {
  margin: 0 0 var(--sp-2);
  max-width: 16ch;
  line-height: var(--lh-tight);
}

.page-faq .faq-hero-main .lede {
  max-width: 62ch;
  margin: 0;
  color: var(--c-text-soft);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

.page-faq .faq-hero-aside {
  display: none;
}

.page-faq .faq-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1) var(--sp-3);
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: var(--sp-2) 0 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: var(--fs-small);
  color: var(--c-mist);
}

.page-faq .faq-chip .swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.page-faq .faq-chip-gold {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--c-gold);
  display: inline-block;
}

/* ---------- 区块通用标题 ---------- */
.page-faq .faq-index-head,
.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 0 var(--sp-3);
  align-items: start;
  margin-bottom: var(--sp-3);
}

.page-faq .faq-index-head .annotation-vertical,
.page-faq .faq-group-head .annotation-vertical {
  height: 48px;
  overflow: hidden;
}

.page-faq .faq-index-head .section-title,
.page-faq .faq-group-head .section-title {
  margin: 0 0 var(--sp-1);
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.page-faq .faq-index-lede,
.page-faq .faq-group-lede {
  margin: 0;
  max-width: 58ch;
  color: var(--c-text-soft);
  font-size: var(--fs-small);
  line-height: 1.7;
}

.page-faq .faq-group-lede .faq-inline-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 214, 0.4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-group-lede .faq-inline-link:hover,
.page-faq .faq-group-lede .faq-inline-link:focus-visible {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  padding-top: var(--sp-4);
  padding-bottom: var(--sp-4);
  border-top: 1px solid var(--c-line-soft);
}

.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-2);
}

.page-faq .faq-index-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  padding: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: linear-gradient(152deg, rgba(14, 39, 64, 0.92), rgba(7, 26, 47, 0.62));
  color: var(--c-white);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index-card:hover,
.page-faq .faq-index-card:focus-visible {
  border-color: var(--c-cyan);
}

.page-faq .faq-index-card:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

.page-faq .faq-index-num {
  font-size: var(--fs-micro);
  letter-spacing: 0.22em;
  color: var(--c-grid);
}

.page-faq .faq-index-title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-index-hint {
  flex: 1 1 auto;
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--c-text-soft);
}

.page-faq .faq-index-count {
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  color: var(--c-gold);
  padding-top: var(--sp-1);
}

.page-faq .faq-index-card::after {
  content: "";
  display: block;
  height: 2px;
  width: 32px;
  margin-top: var(--sp-1);
  background: var(--c-grid);
  transition: width var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index-card:hover::after,
.page-faq .faq-index-card:focus-visible::after {
  width: 68px;
  background: var(--c-cyan);
}

.page-faq .faq-index-visual {
  margin: 0;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-panel-2);
}

.page-faq .faq-index-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.9;
}

.page-faq .faq-index-visual .media-caption {
  display: block;
  padding: 10px 16px 14px;
  font-size: var(--fs-micro);
  line-height: 1.6;
  color: var(--c-mist);
  border-top: 1px solid var(--c-line-soft);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: var(--sp-4);
  padding-bottom: var(--sp-4);
}

.page-faq .faq-group--stats,
.page-faq .faq-group--correction {
  border-top: 1px solid var(--c-line-soft);
}

.page-faq .faq-interval-figure {
  margin: 0 0 var(--sp-4);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: linear-gradient(118deg, rgba(15, 58, 84, 0.7), rgba(7, 26, 47, 0.55));
}

.page-faq .faq-interval-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-interval-figure .media-caption {
  display: block;
  padding: 12px 18px;
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--c-mist);
  border-top: 1px solid var(--c-line-soft);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--c-line-soft);
}

.page-faq .fold {
  position: relative;
  display: block;
  border-bottom: 1px solid var(--c-line-soft);
  transition: background-color var(--dur) var(--ease);
}

.page-faq .fold::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: var(--c-gold);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform var(--dur) var(--ease);
}

.page-faq .fold[open]::before,
.page-faq .fold[data-open]::before {
  transform: scaleY(1);
}

.page-faq .fold[open],
.page-faq .fold[data-open] {
  background: linear-gradient(90deg, rgba(232, 199, 122, 0.07), rgba(232, 199, 122, 0) 48%);
}

.page-faq .fold-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: 18px 16px 18px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--c-white);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  transition: color var(--dur) var(--ease);
}

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

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

.page-faq .fold-head:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: -4px;
}

.page-faq .fold-cue {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .fold-cue::before,
.page-faq .fold-cue::after {
  content: "";
  position: absolute;
  background: var(--c-mist);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .fold-cue::before {
  top: 6px;
  left: 0;
  right: 0;
  height: 1.5px;
}

.page-faq .fold-cue::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 1.5px;
}

.page-faq .fold[open] .fold-cue::before,
.page-faq .fold[open] .fold-cue::after,
.page-faq .fold[data-open] .fold-cue::before,
.page-faq .fold[data-open] .fold-cue::after {
  background: var(--c-gold);
}

.page-faq .fold[open] .fold-cue::after,
.page-faq .fold[data-open] .fold-cue::after {
  transform: scaleY(0);
}

.page-faq .fold-body {
  padding: 0 20px 20px;
}

.page-faq .fold-body p {
  margin: 0;
  max-width: 68ch;
  color: var(--c-text-soft);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

.page-faq .fold-body .faq-inline-link,
.page-faq .faq-scope-note .faq-inline-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 214, 0.38);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .fold-body .faq-inline-link:hover,
.page-faq .fold-body .faq-inline-link:focus-visible,
.page-faq .faq-scope-note .faq-inline-link:hover,
.page-faq .faq-scope-note .faq-inline-link:focus-visible {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 订正路径 ---------- */
.page-faq .faq-correct-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-panel-2);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: var(--sp-2);
  align-items: start;
  padding: var(--sp-3);
  border-bottom: 1px solid var(--c-line-soft);
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-step:last-child {
  border-bottom: 0;
}

.page-faq .faq-step:hover {
  background: var(--c-panel);
}

.page-faq .faq-step-num {
  padding-top: 4px;
  font-size: var(--fs-small);
  letter-spacing: 0.1em;
  color: var(--c-gold);
}

.page-faq .faq-step p {
  margin: 0;
  max-width: 60ch;
  color: var(--c-text-soft);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

.page-faq .faq-request-panel {
  padding: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: linear-gradient(170deg, rgba(255, 107, 74, 0.09), rgba(14, 39, 64, 0.75) 46%);
}

.page-faq .faq-request-panel .panel-title {
  margin: 0 0 var(--sp-2);
  font-size: var(--fs-h3);
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-faq .faq-request-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-request-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--c-text-soft);
}

.page-faq .faq-request-list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--c-coral);
}

.page-faq .faq-request-note {
  margin: var(--sp-3) 0 0;
  padding-top: var(--sp-2);
  border-top: 1px solid var(--c-line-soft);
  font-size: var(--fs-micro);
  line-height: 1.7;
  color: var(--c-mist);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: var(--sp-4);
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-line-soft);
}

.page-faq .faq-contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-1) var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  background: var(--c-panel-2);
}

.page-faq .faq-contact-key {
  flex: 0 0 auto;
  min-width: 76px;
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  color: var(--c-grid);
}

.page-faq .faq-contact-value {
  font-size: var(--fs-small);
  color: var(--c-white);
  word-break: break-all;
}

.page-faq .faq-contact-note {
  margin: 0;
  padding: var(--sp-2) var(--sp-3);
  background: var(--c-ink);
  font-size: var(--fs-micro);
  line-height: 1.7;
  color: var(--c-mist);
}

.page-faq .faq-scope-note {
  margin: var(--sp-3) 0 0;
  max-width: 74ch;
  font-size: var(--fs-small);
  line-height: var(--lh-body);
  color: var(--c-mist);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.page-faq .faq-actions .btn {
  flex: 0 0 auto;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-3);
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact-note {
    grid-column: 1 / -1;
  }

  .page-faq .fold-head {
    padding: 20px 24px 20px 26px;
    font-size: 17px;
  }

  .page-faq .fold-body {
    padding: 0 24px 24px 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .container {
    width: min(100% - 72px, var(--shell));
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--sp-4);
  }

  .page-faq .faq-hero-aside {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding-bottom: 6px;
  }

  .page-faq .faq-correct-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-4);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-index-grid {
    grid-template-columns: 1.2fr 0.92fr 1fr;
  }

  .page-faq .faq-group-head,
  .page-faq .faq-index-head {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 0 var(--sp-4);
  }

  .page-faq .faq-group-head .annotation-vertical,
  .page-faq .faq-index-head .annotation-vertical {
    height: 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .fold,
  .page-faq .fold::before,
  .page-faq .fold-cue::before,
  .page-faq .fold-cue::after,
  .page-faq .faq-index-card,
  .page-faq .faq-index-card::after,
  .page-faq .fold-head,
  .page-faq .faq-step,
  .page-faq .fold-body .faq-inline-link {
    transition: none;
  }
}