.page-faq {
  --faq-gap: clamp(20px, 2.6vw, 36px);
  --faq-sticky-top: 104px;
  background: var(--sea-800);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4.2vw, 56px) 0 clamp(26px, 4vw, 50px);
  background:
    radial-gradient(120% 150% at 8% -10%, rgba(255, 122, 26, .18), transparent 58%),
    radial-gradient(95% 130% at 100% 0%, rgba(47, 214, 232, .14), transparent 62%),
    var(--sea-900);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--signal), var(--cyan) 42%, transparent 88%);
  opacity: .7;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 18px;
}

.page-faq .faq-hero__title {
  margin: 12px 0 16px;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 5vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: .005em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(.95rem, 1.15vw, 1.05rem);
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: clamp(16px, 2vw, 22px) 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.page-faq .faq-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
  letter-spacing: -.01em;
}

.page-faq .faq-hero__stats li:nth-child(2) .faq-hero__num { color: var(--white); }
.page-faq .faq-hero__stats li:nth-child(3) .faq-hero__num { color: var(--cyan); }
.page-faq .faq-hero__stats li:nth-child(4) .faq-hero__num { color: var(--signal); }

.page-faq .faq-hero__label {
  display: block;
  margin-top: 6px;
  font-size: .78rem;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 主体壳体 ---------- */
.page-faq .faq-body {
  padding-bottom: clamp(44px, 6vw, 84px);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(24px, 3.6vw, 52px);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 14px;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--sea-700);
  color: var(--mist);
  font-size: .86rem;
  line-height: 1.4;
  text-decoration: none;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}

.page-faq .faq-index__link:hover {
  color: var(--white);
  background: var(--sea-600);
}

.page-faq .faq-index__link[aria-current="true"] {
  color: var(--white);
  border-bottom-color: var(--signal);
  background: rgba(255, 122, 26, .16);
}

.page-faq .faq-index__no {
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--signal);
}

.page-faq .faq-index__link[aria-current="true"] .faq-index__no {
  color: var(--signal);
}

.page-faq .faq-index__top {
  display: none;
  margin-top: 18px;
  font-size: .82rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-hard);
  padding-bottom: 2px;
}

.page-faq .faq-index__top:hover {
  color: var(--cyan);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-item {
  position: relative;
  min-width: 0;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--sea-700);
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  scroll-margin-top: 112px;
  transition: border-color .22s ease, transform .22s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--line-hard);
  transform: translateY(-2px);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: linear-gradient(180deg, var(--signal), rgba(255, 122, 26, 0));
  opacity: .85;
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.08rem, 1.85vw, 1.5rem);
  line-height: 1.32;
  color: var(--white);
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--signal);
}

.page-faq .faq-item p {
  margin: 0 0 12px;
  max-width: 76ch;
  font-size: clamp(.9rem, 1.05vw, .97rem);
  line-height: 1.82;
  color: var(--paper);
}

.page-faq .faq-item p:last-of-type {
  margin-bottom: 4px;
}

.page-faq .faq-item__more {
  display: inline-block;
  margin-top: 6px;
  font-size: .86rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 214, 232, .4);
  padding-bottom: 1px;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .faq-item__more:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 步骤编号 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  background: var(--sea-800);
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  font-size: .88rem;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .faq-steps__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--cyan);
}

/* ---------- 胶囊条件示意 ---------- */
.page-faq .capsule-set {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}

.page-faq .capsule-set .capsule {
  font-size: .82rem;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  background: var(--sea-800);
  overflow: hidden;
}

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

.page-faq .faq-figure--wide img {
  aspect-ratio: 12 / 7;
}

.page-faq .faq-figure--square img {
  aspect-ratio: 1 / 1;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 出场时间分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

/* ---------- 尾部提示 ---------- */
.page-faq .faq-tail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: clamp(16px, 2.2vw, 22px) clamp(16px, 2.4vw, 26px);
  border: 1px solid var(--line-hard);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(120deg, rgba(47, 214, 232, .1), rgba(53, 240, 160, .04) 60%, transparent);
}

.page-faq .faq-tail__text {
  margin: 0;
  font-size: .94rem;
  line-height: 1.7;
  color: var(--paper);
  max-width: 46ch;
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 16px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: clamp(26px, 3.2vw, 50px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
    align-self: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
    margin-top: 14px;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-index__link {
    border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
    border-bottom: 0;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 10px 12px;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover {
    background: rgba(47, 214, 232, .07);
  }

  .page-faq .faq-index__link[aria-current="true"] {
    border-left-color: var(--signal);
    border-bottom-color: transparent;
    background: linear-gradient(90deg, rgba(255, 122, 26, .16), rgba(255, 122, 26, 0));
  }

  .page-faq .faq-index__top {
    display: inline-block;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 288px;
    gap: 24px;
  }

  .page-faq .faq-figure--square {
    margin-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-index__link,
  .page-faq .faq-item__more {
    transition: none;
  }

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