.page-faq {
  --faq-rule: rgba(31, 74, 85, .28);
  --faq-body: #23424a;
  --faq-gap: clamp(28px, 4vw, 56px);
  background: var(--moon);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-faq .wrap {
  display: block;
}

/* 面包屑 */
.page-faq .breadcrumb {
  margin-top: 20px;
  font-size: 13px;
  color: var(--stone);
}
.page-faq .breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mountain);
}
.page-faq .breadcrumb a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 16px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--dai-ink);
}
.page-faq .faq-hero__copy {
  padding: clamp(24px, 5vw, 56px);
  color: var(--moon);
}
.page-faq .faq-hero__eyebrow {
  color: var(--cyan);
  font-family: var(--font-data);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: 12px;
  margin: 0;
}
.page-faq .faq-title {
  margin: 14px 0 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--moon);
}
.page-faq .faq-title::after {
  content: "";
  display: block;
  width: 84px;
  height: 6px;
  margin-top: 20px;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}
.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: rgba(242, 245, 244, .84);
}
.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border: 1px solid rgba(242, 245, 244, .26);
  border-radius: var(--pill);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(242, 245, 244, .82);
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-chip--live {
  border-color: var(--orange);
  color: var(--orange);
}
.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  min-height: 200px;
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  filter: saturate(.5) contrast(1.06);
}
.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(242, 245, 244, .10) 0 1px, transparent 1px 64px),
    linear-gradient(180deg, rgba(16, 36, 43, .30), rgba(16, 36, 43, .78));
  pointer-events: none;
}

/* 分类胶囊 */
.page-faq .faq-tabs {
  display: flex;
  gap: 8px;
  margin-top: 22px;
  padding-bottom: 12px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--pill);
  background: transparent;
  color: var(--dai-ink);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}
.page-faq .faq-tab .num {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--stone);
}
.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
}
.page-faq .faq-tab:hover .num,
.page-faq .faq-tab:focus-visible .num {
  color: var(--orange);
}

/* 布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 36px);
  padding-bottom: clamp(48px, 7vw, 96px);
}
.page-faq .faq-index {
  display: none;
}
.page-faq .faq-index__label {
  margin: 0 0 14px;
  color: var(--stone);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}
.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--pill);
  color: var(--dai-ink);
  font-size: 14px;
  text-decoration: none;
  border: 1px solid transparent;
}
.page-faq .faq-index__list a .num {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--stone);
}
.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
}
.page-faq .faq-index__list a:hover .num,
.page-faq .faq-index__list a:focus-visible .num {
  color: var(--orange);
}
.page-faq .faq-index__note {
  margin: 18px 0 0;
  color: var(--stone);
  font-size: 12px;
  line-height: 1.7;
}

/* 分组 */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6vw, 76px);
}
.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--dai-ink);
}
.page-faq .faq-group__no {
  font-family: var(--font-data);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--dai-ink);
}
.page-faq .faq-group__desc {
  margin: 12px 0 0;
  color: var(--stone);
  font-size: 13px;
  line-height: 1.7;
}

/* 问答条目 */
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--faq-rule);
}
.page-faq .faq-item__toggle {
  position: absolute;
  top: 22px;
  left: 2px;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}
.page-faq .faq-item__head {
  display: grid;
  grid-template-columns: 28px 1fr 18px;
  gap: 12px;
  align-items: start;
  padding: 18px 0 16px;
  cursor: pointer;
}
.page-faq .faq-item__no {
  font-family: var(--font-data);
  font-size: 15px;
  line-height: 1.6;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-item__q {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--dai-ink);
}
.page-faq .faq-item__arrow {
  width: 16px;
  height: 16px;
  margin-top: 5px;
  color: var(--orange);
  transition: transform .18s ease;
}
.page-faq .faq-item__body {
  position: relative;
  max-height: 3.5em;
  overflow: hidden;
  transition: max-height .26s ease;
}
.page-faq .faq-item__body p {
  margin: 0;
  padding: 0 0 20px 40px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--faq-body);
}
.page-faq .faq-item__body::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 40px;
  height: 1.9em;
  background: linear-gradient(180deg, rgba(242, 245, 244, 0), var(--moon));
  pointer-events: none;
  transition: opacity .2s ease;
}
.page-faq .faq-item__toggle:checked ~ .faq-item__head .faq-item__arrow {
  transform: rotate(90deg);
}
.page-faq .faq-item__toggle:checked ~ .faq-item__body {
  max-height: 40em;
}
.page-faq .faq-item__toggle:checked ~ .faq-item__body::after {
  opacity: 0;
}
.page-faq .faq-item__toggle:focus-visible ~ .faq-item__head {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.page-faq .faq-item__head:hover .faq-item__q {
  color: var(--orange);
}

/* 组间横幅 */
.page-faq .faq-band {
  position: relative;
  margin: clamp(36px, 5vw, 60px) 0 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--dai-ink);
}
.page-faq .faq-band img {
  display: block;
  width: 100%;
  height: clamp(170px, 26vw, 260px);
  object-fit: cover;
  filter: saturate(.35) contrast(1.1);
  opacity: .78;
}
.page-faq .faq-band__note {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 18px;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--moon);
  max-width: 46ch;
}
.page-faq .faq-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(63, 208, 201, .16) 0 1px, transparent 1px 46px),
    linear-gradient(180deg, rgba(16, 36, 43, .12), rgba(16, 36, 43, .82));
  pointer-events: none;
}

/* 尾部引导 */
.page-faq .faq-cta {
  margin-top: clamp(48px, 6vw, 80px);
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--radius-lg);
  background: var(--rain-ink);
  display: grid;
  gap: 24px;
}
.page-faq .faq-cta__eyebrow {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.page-faq .faq-cta__title {
  margin: 12px 0 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--moon);
}
.page-faq .faq-cta__text {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(242, 245, 244, .78);
}
.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
  .page-faq .faq-hero__media,
  .page-faq .faq-hero__media img {
    min-height: 100%;
  }
  .page-faq .faq-item__head {
    grid-template-columns: 40px 1fr 18px;
    gap: 16px;
  }
  .page-faq .faq-item__no {
    font-size: 17px;
  }
  .page-faq .faq-item__q {
    font-size: 17px;
  }
  .page-faq .faq-item__body p {
    padding-left: 56px;
    font-size: 15px;
  }
  .page-faq .faq-item__body::after {
    left: 56px;
  }
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-tabs {
    display: none;
  }
  .page-faq .faq-layout {
    grid-template-columns: 212px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--topbar-h) + 28px);
  }
  .page-faq .faq-stream {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__arrow,
  .page-faq .faq-item__body,
  .page-faq .faq-item__body::after {
    transition: none;
  }
}
</main>