.page-faq {
  --faq-stripe: repeating-linear-gradient(90deg, rgba(53, 242, 208, .055) 0 1px, transparent 1px 76px);
  background: var(--c-ink);
  color: var(--c-cream);
  padding-bottom: 3rem;
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-block: 18px 6px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-moss);
}

.page-faq .breadcrumb__list > li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumb__link {
  color: var(--c-moss);
  text-decoration: none;
}

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

.page-faq .breadcrumb__current {
  color: var(--c-amber);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background-image:
    var(--faq-stripe),
    linear-gradient(158deg, #0E3B2E 0%, #123c30 38%, #071C17 100%);
  padding-block: 30px 34px;
}

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

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--f-data);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--c-amber);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(29px, 7.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--c-cream);
}

.page-faq .faq-hero__mark {
  display: inline-block;
  color: var(--c-orange);
  box-shadow: inset 0 -.2em 0 rgba(255, 75, 31, .24);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-moss);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 11px;
  border-left: 5px solid var(--c-orange);
}

.page-faq .faq-hero__stat .stat__value {
  font-family: var(--f-data);
  font-size: 23px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__stat .stat__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-moss);
}

/* ---------- 疑问导航 ---------- */
.page-faq .faq-jump {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 28, 23, .92);
  padding-block: 10px;
}

.page-faq .faq-jump__row {
  gap: 8px;
  padding-bottom: 2px;
}

.page-faq .faq-jump__chip {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 0;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  background: rgba(59, 35, 80, .42);
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-jump__chip:hover,
.page-faq .faq-jump__chip:focus-visible {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  background: rgba(53, 242, 208, .1);
}

/* ---------- 分组骨架 ---------- */
.page-faq .faq-group {
  padding-block: 38px 26px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-group:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-group__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-group__side,
.page-faq .faq-group__main {
  min-width: 0;
}

.page-faq .faq-group__side .section__index {
  margin: 0 0 10px;
  font-family: var(--f-data);
  font-size: 13px;
  letter-spacing: .22em;
  color: var(--c-amber);
}

.page-faq .faq-group__side .section__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(21px, 4.8vw, 29px);
  line-height: 1.24;
  letter-spacing: -.012em;
  color: var(--c-cream);
}

.page-faq .faq-group__count {
  display: inline-block;
  margin: 14px 0 0;
  padding-top: 6px;
  border-top: 2px solid var(--c-cyan);
  font-family: var(--f-data);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--c-moss);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-group__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-left: 3px solid var(--c-cyan);
  background: rgba(14, 59, 46, .4);
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .qa:hover {
  border-left-color: var(--c-orange);
  background: rgba(14, 59, 46, .68);
}

.page-faq .qa[open] {
  border-left-color: var(--c-orange);
  background: rgba(14, 59, 46, .62);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--f-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.48;
  letter-spacing: -.005em;
  color: var(--c-cream);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--f-data);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-cyan);
  transition: color .18s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--c-orange);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-faq .qa__a {
  margin: 0 16px 16px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--c-cyan);
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-moss);
}

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

.page-faq .qa__a p + p {
  margin-top: 7px;
}

.page-faq .qa__a a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, .45);
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  border-bottom-color: var(--c-orange);
  color: var(--c-orange);
}

.page-faq .qa-step {
  display: inline-block;
  min-width: 2em;
  margin-right: 6px;
  font-family: var(--f-data);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps__item {
  position: relative;
  padding: 16px 14px 14px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(59, 35, 80, .5) 0%, rgba(14, 59, 46, .3) 100%);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-steps__item:hover,
.page-faq .faq-steps__item:focus-visible {
  border-color: var(--c-cyan);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .faq-steps__num {
  display: block;
  font-family: var(--f-data);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-steps__label {
  display: block;
  margin-top: 9px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-cream);
}

.page-faq .faq-steps__hint {
  display: block;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--c-amber);
  transition: max-height .26s var(--ease), opacity .2s var(--ease), margin-top .2s var(--ease);
}

.page-faq .faq-steps__item:hover .faq-steps__hint,
.page-faq .faq-steps__item:focus-visible .faq-steps__hint,
.page-faq .faq-steps__item:focus-within .faq-steps__hint {
  max-height: 7em;
  margin-top: 8px;
  opacity: 1;
}

/* ---------- 配图 ---------- */
.page-faq .faq-fig {
  margin: 24px 0 0;
  border: 3px solid var(--c-cyan);
  box-shadow: 9px 9px 0 rgba(7, 28, 23, .62);
}

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

.page-faq .faq-fig--tall {
  border-color: var(--c-silver);
  box-shadow: 9px 9px 0 rgba(59, 35, 80, .6);
}

/* ---------- 联系收尾 ---------- */
.page-faq .faq-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  padding: 20px 18px;
  border: 2px solid var(--c-orange);
  background: linear-gradient(120deg, rgba(255, 75, 31, .11) 0%, rgba(59, 35, 80, .38) 100%);
  box-shadow: 9px 9px 0 rgba(7, 28, 23, .55);
}

.page-faq .faq-contact__text {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-cream);
}

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

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-hero {
    padding-block: 42px 46px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-group {
    padding-block: 46px 30px;
  }

  .page-faq .faq-group__grid {
    grid-template-columns: minmax(210px, 288px) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-group__side {
    position: sticky;
    top: 84px;
  }

  .page-faq .faq-group__count {
    display: block;
    margin: 20px 0 0;
    padding-top: 0;
    border-top: 0;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: .34em;
    height: 7.5em;
  }

  .page-faq .qa__q {
    padding: 16px 20px;
    font-size: 16px;
  }

  .page-faq .qa__a {
    margin: 0 20px 18px;
    padding-left: 18px;
    font-size: 14.5px;
  }

  .page-faq .faq-fig {
    margin-top: 30px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-group__grid {
    grid-template-columns: minmax(230px, 320px) minmax(0, 1fr);
    gap: 60px;
  }
}

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

  .page-faq .faq-steps__item:hover {
    transform: none;
  }
}