.page-faq {
  --faq-rail: 250px;
  --faq-cut: 12px;
  --faq-soft: rgba(244, 239, 231, .78);
  --faq-dim: rgba(244, 239, 231, .72);
  background: var(--sky-900);
  color: var(--paper);
  font-family: var(--font-sans);
  line-height: 1.75;
  padding-bottom: 72px;
}

.page-faq .wrap {
  padding-inline: 20px;
}

@media (min-width: 1200px) {
  .page-faq .wrap {
    padding-inline: 32px;
  }
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--gray);
}

.page-faq .breadcrumb a {
  color: var(--gray);
  text-decoration: none;
  transition: color .18s ease;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--neon);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--paper);
}

.page-faq .breadcrumb__sep {
  color: var(--clay);
}

/* ---------- 首屏拼贴 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding-top: 26px;
  padding-bottom: 34px;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
    padding-top: 48px;
    padding-bottom: 46px;
  }
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  letter-spacing: .16em;
  color: var(--neon);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-size: var(--fs-hero);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.16;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-body);
  color: var(--faq-soft);
}

.page-faq .faq-hero__side {
  position: relative;
  padding: 22px 20px 20px;
  background-color: var(--indigo);
  background-image: repeating-linear-gradient(135deg, rgba(244, 239, 231, .05) 0 1px, transparent 1px 12px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

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

.page-faq .faq-stats__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(244, 239, 231, .12);
}

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

.page-faq .faq-stats__key {
  font-size: var(--fs-data);
  color: var(--faq-dim);
}

.page-faq .faq-stats__val {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: 700;
  color: var(--neon);
}

/* ---------- 全宽状态带 ---------- */
.page-faq .faq-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--sky-700);
}

.page-faq .faq-strip__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
  padding-top: 12px;
  padding-bottom: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--gray);
}

.page-faq .faq-strip__inner > span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-strip__dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--neon);
  flex: 0 0 auto;
}

/* ---------- 非对称外壳 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 36px;
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
  }
}

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

@media (min-width: 960px) {
  .page-faq .faq-side {
    align-self: start;
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    gap: 24px;
  }
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  background: var(--sky-700);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-data);
  transition: background .18s ease, color .18s ease;
}

.page-faq .faq-index__item:hover {
  background: var(--clay-deep);
}

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

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--clay-lite);
}

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

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  color: var(--gray);
}

@media (min-width: 960px) {
  .page-faq .faq-index__item {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 10px;
    padding: 13px 14px;
    background: transparent;
    border-left: 3px solid rgba(244, 239, 231, .12);
  }

  .page-faq .faq-index__item:hover {
    background: var(--sky-700);
    border-left-color: var(--clay-lite);
    color: var(--paper);
  }
}

/* ---------- 索引旁示意图 ---------- */
.page-faq .faq-schematic {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--sky-700);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-schematic img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.85);
}

.page-faq .faq-schematic::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 22, 38, .08) 0%, rgba(11, 22, 38, .46) 100%);
  pointer-events: none;
}

.page-faq .faq-schematic__cap {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 10px 14px 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--gray);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: 56px;
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 40px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--clay-lite);
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-title);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-group__tail {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--gray);
}

/* ---------- 可展开条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 17px 0 17px 14px;
  border-left: 3px solid transparent;
  cursor: pointer;
  list-style: none;
  transition: border-color .22s ease, background .18s ease;
}

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

.page-faq .faq-item__head::marker {
  content: "";
}

.page-faq .faq-item__head:hover {
  background: rgba(244, 239, 231, .03);
}

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

.page-faq .faq-item[open] > .faq-item__head {
  border-left-color: var(--clay);
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  width: 22px;
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: 700;
  line-height: 1.75;
  color: var(--gray);
  transition: color .18s ease;
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--neon);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: 1.7;
  color: var(--paper);
  transition: color .18s ease;
}

.page-faq .faq-item__head:hover .faq-item__q {
  color: var(--clay-lite);
}

.page-faq .faq-item__arrow {
  flex: 0 0 auto;
  margin-top: 7px;
  color: var(--gray);
  transition: transform .22s ease-out, color .18s ease;
}

.page-faq .faq-item[open] .faq-item__arrow {
  transform: rotate(180deg);
  color: var(--neon);
}

.page-faq .faq-item__body {
  padding: 0 0 22px 46px;
}

.page-faq .faq-item__pre {
  margin: 0 0 12px;
  padding: 8px 12px;
  background: rgba(43, 227, 176, .07);
  border-left: 2px solid var(--neon);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  line-height: 1.7;
  color: var(--neon);
}

.page-faq .faq-item__answer {
  margin: 0 0 14px;
  max-width: 42em;
  font-size: var(--fs-body);
  color: var(--faq-soft);
}

.page-faq .faq-item__conclusion {
  display: block;
  margin-bottom: 4px;
  color: var(--paper);
  font-weight: 700;
}

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 5px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  line-height: 1.72;
  color: var(--faq-dim);
}

.page-faq .faq-steps__dash {
  color: var(--clay);
}

/* ---------- 流程示意 ---------- */
.page-faq .faq-flow {
  margin: 28px 0 0;
  padding: 0;
  max-width: 560px;
}

.page-faq .faq-flow img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--sky-700);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-flow__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--gray);
}

/* ---------- 收尾联络块 ---------- */
.page-faq .faq-contact {
  padding: 30px 22px 28px;
  background: var(--clay-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

@media (min-width: 720px) {
  .page-faq .faq-contact {
    padding: 38px 36px 34px;
  }
}

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: var(--fs-title);
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-contact__text {
  margin: 0 0 16px;
  max-width: 44em;
  font-size: var(--fs-body);
  color: rgba(244, 239, 231, .9);
}

.page-faq .faq-contact__list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-faq .faq-contact__item {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: rgba(244, 239, 231, .88);
}

.page-faq .faq-contact__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  background: var(--paper);
  color: var(--clay-deep);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background .18s ease, color .18s ease;
}

.page-faq .faq-contact__link:hover {
  background: var(--neon);
  color: var(--sky-900);
}

.page-faq .faq-contact__link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__head,
  .page-faq .faq-item__idx,
  .page-faq .faq-item__q,
  .page-faq .faq-item__arrow,
  .page-faq .faq-index__item,
  .page-faq .faq-contact__link {
    transition: none;
  }

  .page-faq .faq-item[open] .faq-item__arrow {
    transform: none;
    color: var(--clay-lite);
  }
}