.page-faq {
  --faq-rail-w: 240px;
  --faq-pad: 20px;
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--indigo-deep);
  color: #FFFFFF;
  overflow: hidden;
  padding: 28px 0 56px;
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(105deg, rgba(14, 36, 64, .96) 0%, rgba(22, 53, 92, .88) 46%, rgba(14, 36, 64, .6) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.page-faq .faq-hero .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: rgba(255, 255, 255, .34);
}

.page-faq .faq-hero .crumbs__link {
  color: rgba(255, 255, 255, .74);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .faq-hero .crumbs__link:hover {
  color: #FFFFFF;
  border-bottom-color: var(--gold);
}

.page-faq .faq-hero .crumbs__current {
  color: var(--gold-light);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold-light);
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 16em;
  font-size: clamp(30px, 6vw, 54px);
  line-height: 1.16;
  letter-spacing: -.02em;
  font-weight: 900;
}

.page-faq .faq-hero .lead {
  margin: 22px 0 0;
  max-width: 640px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(255, 255, 255, .84);
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.page-faq .faq-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: -.01em;
}

.page-faq .faq-stats__label {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(255, 255, 255, .7);
}

/* ---------- 主题筛选带 ---------- */
.page-faq .faq-filter {
  background: var(--cool);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

.page-faq .faq-filter__inner {
  overflow-x: auto;
}

.page-faq .filter {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: max-content;
  padding-bottom: 2px;
}

.page-faq .filter__btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .filter__btn:hover {
  border-color: var(--gold);
  color: var(--indigo);
}

.page-faq .filter__btn.is-active {
  background: var(--indigo);
  border-color: var(--indigo);
  color: #FFFFFF;
}

.page-faq .filter__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
}

.page-faq .filter__btn.is-active .filter__count {
  color: var(--gold-light);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding: 40px 0 72px;
}

.page-faq .faq-rail {
  display: none;
}

.page-faq .rail__title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gray);
}

.page-faq .rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0 11px 12px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .16s var(--ease), color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .rail__link:hover {
  border-left-color: var(--gold);
  color: var(--indigo);
}

.page-faq .rail__link.is-active {
  border-left-color: var(--gold);
  background: var(--cool);
  color: var(--indigo);
  font-weight: 700;
}

.page-faq .rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

.page-faq .rail__text {
  flex: 1 1 auto;
}

.page-faq .rail__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
}

.page-faq .faq-rail__note {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 13px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 44px;
}

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

.page-faq .faq-group__head {
  padding-top: 16px;
  border-top: 2px solid var(--indigo);
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--indigo);
  scroll-margin-top: 96px;
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  max-width: 640px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
}

.page-faq .media__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--cool);
  aspect-ratio: 3 / 2;
}

.page-faq .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--gray);
}

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

.page-faq .accordion__item {
  border-bottom: 1px solid var(--line);
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .accordion__item:has([aria-expanded="true"]) {
  border-bottom-color: var(--gold);
  background: linear-gradient(90deg, rgba(232, 200, 120, .14) 0%, rgba(232, 200, 120, 0) 60%);
}

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

.page-faq .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  width: 100%;
  padding: 18px 0;
  border: 0;
  background: none;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-faq .accordion__index {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--gold);
  padding-top: 2px;
}

.page-faq .accordion__label {
  font-size: clamp(15.5px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.65;
  color: var(--ink);
  transition: color .16s var(--ease);
}

.page-faq .accordion__trigger:hover .accordion__label {
  color: var(--indigo-mid);
}

.page-faq .accordion__icon {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid var(--line-strong);
  transition: background-color .16s var(--ease), border-color .16s var(--ease);
}

.page-faq .accordion__icon::before,
.page-faq .accordion__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--indigo);
}

.page-faq .accordion__icon::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .accordion__icon::after {
  width: 1.5px;
  height: 8px;
  transition: transform .2s var(--ease);
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon {
  background: var(--gold);
  border-color: var(--gold);
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::before,
.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  background: #FFFFFF;
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .accordion__panel {
  padding: 0 0 20px 44px;
}

.page-faq .accordion__panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: #37424F;
}

.page-faq .accordion__panel a {
  color: var(--indigo-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color .16s var(--ease);
}

.page-faq .accordion__panel a:hover {
  color: var(--gold);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  position: relative;
  overflow: hidden;
  background: var(--indigo-deep);
  color: #FFFFFF;
  padding: 48px 0 52px;
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-radial-gradient(circle at 88% 18%, rgba(201, 150, 43, .22) 0 1px, transparent 1px 44px);
  pointer-events: none;
}

.page-faq .faq-cta__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: center;
}

.page-faq .faq-cta .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold-light);
}

.page-faq .faq-cta h2 {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-faq .faq-cta__text p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .8);
}

.page-faq .faq-cta__text a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 200, 120, .5);
}

.page-faq .faq-cta__text a:hover {
  color: #FFFFFF;
}

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

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border: 1px solid transparent;
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  transition: background-color .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);
}

.page-faq .btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--indigo-deep);
  font-weight: 700;
}

.page-faq .btn--gold:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}

.page-faq .btn--ghost {
  border-color: rgba(255, 255, 255, .42);
  color: #FFFFFF;
}

.page-faq .btn--ghost:hover {
  border-color: var(--gold);
  color: var(--gold-light);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }

  .page-faq .faq-cta .btn-row {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding: 34px 0 68px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 56px;
    padding: 52px 0 88px;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-faq .faq-group {
    margin-bottom: 56px;
  }

  .page-faq .accordion__trigger {
    padding: 20px 0;
    gap: 18px;
  }

  .page-faq .accordion__panel {
    padding-left: 52px;
  }
}

@media (min-width: 1240px) {
  .page-faq .media--wide .media__frame {
    aspect-ratio: 2 / 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter__btn,
  .page-faq .rail__link,
  .page-faq .accordion__label,
  .page-faq .accordion__icon,
  .page-faq .accordion__icon::after,
  .page-faq .btn,
  .page-faq .faq-hero .crumbs__link {
    transition: none;
  }
}