.page-faq {
  --faq-rail-w: 212px;
  --faq-ink: var(--cold-white);
  background: var(--void-navy);
  color: var(--faq-ink);
  overflow-x: hidden;
}

/* ---------- 首屏横幅 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--grid-line);
  background: var(--void-navy);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 10, 24, 0.55) 0%, rgba(5, 10, 24, 0.9) 72%, var(--void-navy) 100%),
    repeating-linear-gradient(90deg, rgba(53, 230, 210, 0.07) 0 1px, transparent 1px 72px);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 36px;
  padding-bottom: 48px;
}

.page-faq .faq-hero .qx-breadcrumb {
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-hero .qx-breadcrumb a {
  color: var(--slate);
  text-decoration: none;
}

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

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

.page-faq .faq-hero .qx-label {
  margin-top: 28px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(30px, 7.2vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--cold-white);
}

.page-faq .faq-hero__lead {
  max-width: 58ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--slate);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  margin: 32px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--grid-line);
}

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

.page-faq .faq-stat__key {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-faq .faq-stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-faq .faq-stat__unit {
  margin-left: 6px;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 热门问题 ---------- */
.page-faq .faq-hot {
  padding-top: 48px;
  padding-bottom: 56px;
}

.page-faq .faq-hot__head h2 {
  margin: 12px 0 0;
  max-width: 24ch;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-hot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 28px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-faq .faq-hot__item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 24px;
  background: var(--deck-blue);
  transition: background 0.25s var(--ease);
}

.page-faq .faq-hot__item:hover {
  background: var(--panel-blue);
}

.page-faq .faq-hot__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-hot__q {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--cold-white);
}

.page-faq .faq-hot__a {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding-top: 48px;
  padding-bottom: 72px;
  border-top: 1px solid var(--grid-line);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq .faq-rail {
  border-top: 1px solid var(--grid-line);
  padding-top: 16px;
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.2;
  white-space: nowrap;
  color: var(--slate);
  text-decoration: none;
  border: 1px solid var(--grid-line);
  border-radius: var(--radius);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--cold-white);
  border-color: var(--cyan-dim);
  background: rgba(28, 140, 134, 0.14);
}

.page-faq .faq-rail__link[aria-current="true"] {
  color: var(--void-navy);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 600;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding: 34px 0 40px;
  border-top: 1px solid var(--grid-line);
  scroll-margin-top: calc(var(--hdr-h) + 16px);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}

.page-faq .faq-group__no {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(21px, 3.6vw, 30px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--cold-white);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 24px;
}

.page-faq .faq-figure .qx-figure__media {
  border: 1px solid var(--grid-line);
}

.page-faq .faq-figure .qx-figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-figure .qx-figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--graphite);
}

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

.page-faq .faq-acc .qx-accordion__item {
  border-bottom: 1px solid var(--grid-line);
}

.page-faq .faq-acc .qx-accordion__trigger {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 18px;
  align-items: start;
  gap: 12px;
  width: 100%;
  padding: 18px 2px;
  background: transparent;
  border: 0;
  border-radius: 0;
  text-align: left;
  color: var(--cold-white);
  font-family: var(--font-sans);
  font-size: 16px;
  cursor: pointer;
}

.page-faq .faq-acc .qx-accordion__trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-acc__idx {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--graphite);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-acc__q {
  display: block;
  font-weight: 600;
  font-size: 16px;
  line-height: 1.55;
  transition: color 0.22s var(--ease);
}

.page-faq .faq-acc .qx-accordion__trigger:hover .faq-acc__q,
.page-faq .faq-acc .qx-accordion__trigger:hover .faq-acc__idx,
.page-faq .faq-acc .qx-accordion__trigger:focus-visible .faq-acc__q,
.page-faq .faq-acc .qx-accordion__trigger:focus-visible .faq-acc__idx {
  color: var(--cyan);
}

.page-faq .faq-acc .qx-accordion__icon {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  justify-self: end;
  flex: none;
}

.page-faq .faq-acc .qx-accordion__icon::before,
.page-faq .faq-acc .qx-accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-acc .qx-accordion__icon::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-acc .qx-accordion__icon::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-acc .qx-accordion__trigger[aria-expanded="true"] .qx-accordion__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-acc .qx-accordion__panel {
  overflow: hidden;
}

.page-faq .faq-acc .qx-accordion__inner {
  position: relative;
  padding: 0 2px 22px 46px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

.page-faq .faq-acc .qx-accordion__inner::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 4px;
  bottom: 24px;
  width: 2px;
  background: var(--orange);
}

.page-faq .faq-acc .qx-accordion__inner p {
  margin: 0 0 10px;
}

.page-faq .faq-acc .qx-accordion__inner p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-acc .qx-accordion__inner strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--amber);
  letter-spacing: 0.01em;
}

.page-faq .faq-acc .qx-accordion__inner a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-acc .qx-accordion__inner a:hover,
.page-faq .faq-acc .qx-accordion__inner a:focus-visible {
  color: var(--cold-white);
}

/* ---------- 收尾引导 ---------- */
.page-faq .faq-cta {
  margin-top: 44px;
  padding: 28px 24px 30px;
  background: var(--deck-blue);
  border: 1px solid var(--grid-line);
  border-left: 3px solid var(--orange);
  scroll-margin-top: calc(var(--hdr-h) + 16px);
}

.page-faq .faq-cta h2 {
  margin: 12px 0 0;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--cold-white);
}

.page-faq .faq-cta__text {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

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

.page-faq .faq-cta__text a:hover,
.page-faq .faq-cta__text a:focus-visible {
  color: var(--cold-white);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__inner {
    padding-top: 48px;
    padding-bottom: 60px;
  }

  .page-faq .faq-hot__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-cta {
    padding: 32px 32px 34px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-group__head {
    grid-template-columns: 62px minmax(0, 1fr);
    column-gap: 18px;
    align-items: baseline;
  }

  .page-faq .faq-group__title,
  .page-faq .faq-group__desc {
    grid-column: 2;
  }

  .page-faq .faq-acc .qx-accordion__trigger {
    grid-template-columns: 42px minmax(0, 1fr) 18px;
    padding: 20px 2px;
  }

  .page-faq .faq-acc .qx-accordion__inner {
    padding-left: 60px;
    max-width: 72ch;
  }
}

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

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--hdr-h) + 28px);
    align-self: start;
    border-top: 0;
    border-left: 1px solid var(--grid-line);
    padding: 0 0 0 18px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    padding: 10px 12px 10px 14px;
    border: 0;
    border-left: 2px solid var(--grid-line);
    border-radius: 0;
    margin-left: -20px;
    background: transparent;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    background: transparent;
    border-left-color: var(--cyan);
  }

  .page-faq .faq-rail__link[aria-current="true"] {
    background: transparent;
    color: var(--cyan);
    border-left-color: var(--orange);
    font-weight: 600;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hot__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-hot__item {
    padding: 26px 26px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot__item,
  .page-faq .faq-rail__link,
  .page-faq .faq-acc .qx-accordion__icon::before,
  .page-faq .faq-acc .qx-accordion__icon::after,
  .page-faq .faq-acc__q,
  .page-faq .faq-acc__idx {
    transition: none;
  }
}