.page-faq {
  background: var(--deep);
  color: var(--mist);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

.page-faq .shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 40px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 84% -10%, rgba(255, 106, 31, .16) 0%, rgba(255, 106, 31, 0) 60%),
    linear-gradient(180deg, rgba(18, 37, 61, .94) 0%, rgba(10, 25, 48, .72) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(147, 163, 184, .07) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(90deg, rgba(147, 163, 184, .07) 0 1px, transparent 1px 56px);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 20px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-hero__title {
  margin: 8px 0 16px;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-hero__lead {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--cool);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-hero__stat-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__stat-label {
  font-size: 13px;
  color: var(--cool);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: rgba(18, 37, 61, .66);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 62%;
  top: 10px;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 106, 31, 0));
  border-radius: 2px;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: calc(var(--r-m) - 4px);
}

.page-faq .faq-hero__caption {
  margin-top: 10px;
  padding-left: 2px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
}

/* ============ 主体栅格 ============ */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding-top: 4px;
  padding-bottom: 60px;
}

/* ============ 问题分组 ============ */
.page-faq .faq-nav {
  padding: 14px 0 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-nav__title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-faq .faq-nav__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 2px 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-nav__link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  padding: 8px 14px 8px 9px;
  border: 1px solid var(--line);
  border-radius: var(--r-p);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--mist);
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  padding: 3px 6px;
  border-radius: var(--r-s);
  color: var(--deep);
  background: var(--steel);
  font-variant-numeric: tabular-nums;
  transition: background-color .22s var(--ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 106, 31, .1);
  color: var(--orange);
}

.page-faq .faq-nav__link[aria-current="true"] {
  border-color: var(--orange);
  background: rgba(255, 106, 31, .14);
  color: var(--orange);
}

.page-faq .faq-nav__link:hover .faq-nav__num,
.page-faq .faq-nav__link[aria-current="true"] .faq-nav__num {
  background: var(--orange);
}

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

/* ============ 区块 ============ */
.page-faq .faq-section {
  padding: 30px 0 10px;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 88px;
}

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

.page-faq .faq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.page-faq .faq-section__num {
  flex: 0 0 auto;
  margin-top: 4px;
  padding: 5px 8px;
  border-radius: var(--r-s);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--deep);
  background: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-section__title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-faq .faq-section__note {
  flex: 1 1 100%;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cool);
}

/* ============ 问答折叠项 ============ */
.page-faq .qa {
  position: relative;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--navy);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .qa:hover,
.page-faq .qa:focus-within {
  border-color: var(--orange);
}

.page-faq .qa[open] {
  background: var(--navy-2);
  border-color: var(--steel);
}

.page-faq .qa[open]:hover,
.page-faq .qa[open]:focus-within {
  border-color: var(--orange);
}

.page-faq .qa[open]::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--orange), var(--warm));
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  padding: 16px 46px 16px 18px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 25px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cool);
  border-bottom: 2px solid var(--cool);
  transform: rotate(45deg);
  transition: transform .25s var(--ease), border-color .25s var(--ease), top .25s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  top: 28px;
  transform: rotate(-135deg);
  border-color: var(--orange);
}

.page-faq .qa__a {
  margin-top: 2px;
  padding: 14px 18px 18px;
  border-top: 1px dashed rgba(147, 163, 184, .2);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: #B9C8DA;
}

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

.page-faq .qa__a strong {
  color: var(--mist);
  font-weight: 700;
}

.page-faq .qa__a a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 31, .45);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-faq .qa__tip {
  margin-top: 12px;
  padding: 10px 12px;
  border-left: 3px solid var(--live);
  border-radius: 0 var(--r-s) var(--r-s) 0;
  background: rgba(61, 224, 164, .08);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ============ 移动端章节配图 ============ */
.page-faq .faq-section__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-mobile-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--navy);
  overflow: hidden;
}

.page-faq .faq-mobile-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-mobile-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.65;
  color: var(--cool);
}

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

/* ============ 断点 ============ */
@media (min-width: 720px) {
  .page-faq .faq-section__note {
    flex: 0 1 auto;
    margin-left: auto;
    text-align: right;
    padding-top: 8px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 32px 0 52px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
    gap: 48px;
  }
}

@media (min-width: 960px) {
  .page-faq .shell {
    padding: 0 32px;
  }

  .page-faq .faq-body {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 56px;
    padding-top: 40px;
    padding-bottom: 88px;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 32px;
    align-self: start;
    padding: 0;
    border-bottom: 0;
  }

  .page-faq .faq-nav__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-nav__link {
    display: flex;
    width: 100%;
    margin-bottom: 3px;
    padding: 9px 10px;
    border-color: transparent;
    border-radius: var(--r-m);
    white-space: normal;
  }

  .page-faq .faq-section {
    padding: 42px 0 14px;
  }

  .page-faq .faq-section:first-child {
    padding-top: 6px;
  }

  .page-faq .faq-section--mobile .faq-section__body {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .qa__q {
    font-size: 17px;
    padding: 18px 52px 18px 20px;
  }

  .page-faq .qa__a {
    padding: 16px 20px 20px;
  }

  .page-faq .qa__a p {
    font-size: 15.5px;
    max-width: 62ch;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__grid {
    gap: 64px;
  }
}
<<<END>>>