.page-faq {
  --faq-rail-w: 216px;
  --faq-line: rgba(13, 17, 23, .09);
  background: var(--snow);
  color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-top: clamp(14px, 2.4vw, 22px);
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 30px) 0 clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(760px 280px at 90% -14%, rgba(227, 168, 46, .18), transparent 70%),
    radial-gradient(600px 240px at -4% 112%, rgba(14, 95, 92, .13), transparent 72%);
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: 10px 0 16px;
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-hero__text {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: #343a43;
}

.page-faq .faq-hero__meta {
  margin: 18px 0 0;
  font-size: 12.5px;
}

/* 首屏索引面板 */
.page-faq .faq-hero__panel {
  margin: 0;
  padding: 22px 20px 20px;
  border-radius: var(--r-xl);
  border: 1px solid rgba(28, 138, 133, .45);
  background: linear-gradient(152deg, var(--indigo) 0%, #1a1845 58%, var(--ink) 100%);
  color: var(--snow);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-hero__index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 3px;
}

.page-faq .faq-hero__index a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 9px 10px;
  border-radius: var(--r-sm);
  font-size: 15px;
  color: var(--snow);
  text-decoration: none;
  transition: background .16s ease-out, transform .16s ease-out;
}

.page-faq .faq-hero__index a .mono {
  font-size: 12.5px;
  color: var(--teal-light);
  transition: color .16s ease-out;
}

.page-faq .faq-hero__index a:hover {
  background: rgba(250, 247, 241, .09);
  transform: translateX(3px);
}

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

.page-faq .faq-hero__index a:focus-visible {
  outline: var(--ring);
  outline-offset: 2px;
}

.page-faq .faq-hero__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(250, 247, 241, .16);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(250, 247, 241, .72);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  padding-bottom: clamp(44px, 6vw, 84px);
}

/* ---------- 阶段导航 ---------- */
.page-faq .faq-rail {
  align-self: start;
  padding: 18px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  background: #fff;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--grey);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-rail__list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  line-height: 1.5;
  color: #3a4048;
  text-decoration: none;
  transition: background .16s ease-out, color .16s ease-out;
}

.page-faq .faq-rail__list a .mono {
  font-size: 12px;
  color: var(--crimson);
}

.page-faq .faq-rail__list a:hover {
  background: rgba(183, 39, 31, .07);
  color: var(--crimson-deep);
}

.page-faq .faq-rail__list a:focus-visible {
  outline: var(--ring);
  outline-offset: 2px;
}

/* 窄屏：横向滚动索引带 */
@media (max-width: 1023px) {
  .page-faq .faq-rail {
    padding: 14px 14px 10px;
    overflow: hidden;
  }

  .page-faq .faq-rail__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .page-faq .faq-rail__list li {
    flex: 0 0 auto;
  }

  .page-faq .faq-rail__list a {
    white-space: nowrap;
    background: rgba(183, 39, 31, .06);
  }
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: clamp(38px, 5.4vw, 70px);
  scroll-margin-top: calc(var(--head-h) + 26px);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 16px 22px 18px;
  border-radius: var(--r-lg);
  background: linear-gradient(118deg, var(--indigo) 0%, #1c1a4c 62%, var(--teal) 180%);
  color: var(--snow);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-group__idx {
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-faq .faq-group__desc {
  flex: 1 1 100%;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(250, 247, 241, .74);
}

.page-faq .faq-group__desc a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .faq-group__body {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vw, 28px);
  align-items: start;
}

/* ---------- 折叠问题条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: #fff;
  transition: transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  border-color: rgba(183, 39, 31, .3);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-item[open] {
  border-color: rgba(183, 39, 31, .38);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 46px 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--ink);
}

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

.page-faq .faq-item__q:hover {
  color: var(--crimson-deep);
}

.page-faq .faq-item__q:focus-visible {
  outline: var(--ring);
  outline-offset: -3px;
  border-radius: var(--r-md);
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  min-width: 30px;
  padding-top: 3px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--crimson);
}

.page-faq .faq-item__text {
  min-width: 0;
}

.page-faq .faq-item__mark {
  position: absolute;
  top: 20px;
  right: 19px;
  width: 14px;
  height: 14px;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--crimson);
  border-radius: 2px;
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform .18s ease-out, opacity .18s ease-out;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 14px 22px 18px 60px;
  border-top: 1px solid var(--faq-line);
  font-size: 15.5px;
  line-height: 1.85;
  color: #2e343d;
}

.page-faq .faq-item__a p {
  margin: 0 0 .9em;
}

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

.page-faq .faq-item__a a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--crimson);
}

/* 步骤列表 */
.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 14px;
  padding: 0;
  counter-reset: faqstep;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep);
  height: 22px;
  line-height: 22px;
  border-radius: 6px;
  background: var(--gold-soft);
  color: var(--crimson-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(155deg, var(--teal) 0%, var(--indigo) 56%, var(--ink) 100%);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 19 / 13;
  object-fit: cover;
  mix-blend-mode: luminosity;
  opacity: .9;
}

.page-faq .faq-figure figcaption {
  padding: 10px 16px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(250, 247, 241, .74);
  background: rgba(13, 17, 23, .5);
}

/* ---------- 收尾提示 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(6px, 1.6vw, 16px);
  border-radius: var(--r-xl);
  padding: clamp(24px, 3.6vw, 40px) clamp(22px, 3.4vw, 44px);
  background:
    linear-gradient(125deg, var(--crimson-deep) 0%, var(--crimson) 46%, var(--indigo) 132%);
  color: var(--snow);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-cta__title {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.3;
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(250, 247, 241, .9);
}

.page-faq .faq-cta__text a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-faq .faq-cta__links {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-cta {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
  }

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

  .page-faq .faq-group__body--split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-hero__index a,
  .page-faq .faq-rail__list a {
    transition: none;
  }

  .page-faq .faq-item:hover,
  .page-faq .faq-hero__index a:hover {
    transform: none;
  }
}