.page-faq {
  --faq-index-w: 268px;
  --faq-gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(20px, 4vw, 44px);
}

.page-faq .breadcrumb {
  margin-bottom: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  max-width: 920px;
}

.page-faq .faq-head .h-display {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-faq .faq-head .page-head__lede {
  max-width: 64ch;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-head__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-hero {
  max-width: var(--maxw);
  margin: 34px auto 0;
  padding-inline: var(--pad);
}

.page-faq .faq-hero img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

/* ---------- 索引 + 问答双栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(36px, 6vw, 72px);
}

.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--text);
  background: var(--glass);
  border-left-color: var(--brand);
}

.page-faq .faq-index__list .num {
  font-size: 12px;
  color: var(--brand);
}

.page-faq .faq-index__cta {
  width: 100%;
  justify-content: center;
}

.page-faq .faq-index__figure {
  margin: 22px 0 0;
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-bottom: clamp(40px, 6vw, 64px);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--topbar-h) + 28px);
}

.page-faq .faq-group + .faq-group {
  padding-top: clamp(40px, 6vw, 64px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 4px 14px;
  margin-bottom: 22px;
}

.page-faq .faq-group__no {
  font-size: 26px;
  line-height: 1;
  color: var(--brand);
}

.page-faq .faq-group__head .h-section {
  margin: 0;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.25;
}

.page-faq .faq-group__lede {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  max-width: 58ch;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-group--narrow .faq-group__head {
  margin-bottom: 16px;
}

.page-faq .faq-group--narrow .faq-group__lede {
  max-width: 46ch;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  overflow: hidden;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .qa + .qa,
.page-faq .qa-pair,
.page-faq .qa-stack {
  margin-top: 12px;
}

.page-faq .qa[open] {
  border-color: rgba(59, 255, 158, 0.34);
  background: var(--bg-layer);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

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

.page-faq .qa__q::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin: 7px 2px 0 auto;
  border-right: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(-135deg);
}

.page-faq .qa__a {
  padding: 0 18px 18px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .qa[open] .qa__a {
  animation: faq-open 0.26s var(--ease);
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .qa--lead {
  border-left: 3px solid var(--brand);
  background: var(--bg-layer);
}

.page-faq .qa--lead .qa__q {
  padding: 18px 20px;
  font-size: clamp(17px, 2.2vw, 20px);
}

.page-faq .qa--lead .qa__a {
  padding: 0 20px 20px;
  font-size: 15.5px;
}

.page-faq .qa--compact {
  background: transparent;
  border-style: dashed;
}

.page-faq .qa--compact .qa__q {
  padding: 11px 14px;
  font-size: 15px;
  font-weight: 600;
}

.page-faq .qa--compact .qa__a {
  padding: 0 14px 13px;
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .qa-pair {
  display: grid;
  gap: 12px;
}

.page-faq .qa-stack {
  display: grid;
  gap: 8px;
}

.page-faq .qa-pair .qa,
.page-faq .qa-stack .qa {
  margin-top: 0;
}

/* ---------- 续期对照 ---------- */
.page-faq .plan-compare {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.page-faq .plan {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-faq .plan--warm {
  border-top: 3px solid var(--warm);
}

.page-faq .plan--brand {
  border-top: 3px solid var(--brand);
}

.page-faq .plan__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 14px 0 8px;
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--text);
}

.page-faq .plan__price .num {
  font-size: clamp(32px, 6vw, 42px);
  line-height: 1;
}

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

.page-faq .plan__desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.7;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  display: grid;
  gap: 20px;
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(24px, 4vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(59, 255, 158, 0.1), rgba(255, 122, 47, 0.1)), var(--bg-layer);
}

.page-faq .faq-cta .h-card {
  margin: 0 0 8px;
  font-size: clamp(20px, 3vw, 26px);
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 58ch;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.75;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 999px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 12px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-faq .faq-index__list a {
    border-left: 0;
    border-bottom: 1px solid var(--line);
    margin-left: 0;
  }

  .page-faq .faq-index__figure {
    max-width: 420px;
  }
}

@media (min-width: 760px) {
  .page-faq .qa-pair,
  .page-faq .plan-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero img {
    aspect-ratio: 1200 / 460;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q::after {
    transition: none;
  }

  .page-faq .qa[open] .qa__a {
    animation: none;
  }
}