.page-faq {
  --faq-hair: rgba(143, 163, 184, .3);
  --faq-hair-ink: rgba(35, 32, 28, .16);
  --faq-idx-col: clamp(46px, 8vw, 64px);
  background: var(--night);
  color: var(--cream);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4.6vw, 54px) 0 clamp(30px, 5.4vw, 70px);
  background:
    radial-gradient(circle at 84% 14%, rgba(53, 225, 208, .15), transparent 46%),
    radial-gradient(circle at 8% 94%, rgba(255, 122, 47, .13), transparent 44%),
    var(--night);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -16%;
  right: -10%;
  width: min(52%, 520px);
  height: 134%;
  transform: rotate(9deg);
  background: linear-gradient(180deg, rgba(53, 225, 208, .11), rgba(11, 27, 51, 0) 72%);
  border-left: 1px solid rgba(53, 225, 208, .24);
  pointer-events: none;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: end;
}

.page-faq .faq-hero__eyebrow {
  color: var(--gold);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-faq .faq-hero__sub {
  display: block;
  margin-top: 12px;
  font-size: clamp(15px, 2.1vw, 20px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--cyan);
  max-width: 22em;
}

.page-faq .faq-hero__lede {
  margin-top: clamp(16px, 2.4vw, 26px);
  max-width: 40em;
  color: rgba(244, 239, 227, .82);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-hero__meta li {
  border-left: 2px solid var(--edge);
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--note);
}

.page-faq .faq-hero__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--cyan);
}

.page-faq .faq-hero__meta li:nth-child(2) .faq-hero__num { color: var(--gold); }
.page-faq .faq-hero__meta li:nth-child(3) .faq-hero__num { color: var(--orange); }

/* ---------- 图片通用 ---------- */
.page-faq .faq-fig {
  margin: 0;
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--night-deep);
  border: 3px solid var(--edge);
  box-shadow: var(--hard-shadow);
}

.page-faq .faq-fig--square img {
  max-width: 460px;
  border-color: var(--ink);
  box-shadow: 8px 8px 0 rgba(35, 32, 28, .34);
}

.page-faq .faq-fig__cap {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--press);
}

/* ---------- 主题索引条 ---------- */
.page-faq .faq-index {
  background: var(--night-deep);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

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

.page-faq .faq-index__list::-webkit-scrollbar { display: none; }
.page-faq [data-dragging="true"] { cursor: grabbing; }

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 15px 18px;
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--note);
  border-right: 1px solid var(--edge);
  transition: color .18s ease, background-color .18s ease;
}

.page-faq .faq-index__list li:first-child a { border-left: 1px solid var(--edge); }

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--cyan);
  background: rgba(53, 225, 208, .08);
}

.page-faq .faq-index__num {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--gold);
}

.page-faq .faq-index__hint {
  margin: 0;
  padding: 8px 0 10px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--note);
}

/* ---------- 主题区块 ---------- */
.page-faq .faq-topic {
  padding: clamp(38px, 6.4vw, 88px) 0;
  border-top: 1px solid var(--edge);
}

.page-faq .faq-topic--dark {
  background: var(--night);
  color: var(--cream);
}

.page-faq .faq-topic--cream {
  background: var(--cream);
  color: var(--ink);
  border-top: 5px solid var(--press);
  border-bottom: 5px solid var(--night-deep);
  --faq-hair: var(--faq-hair-ink);
}

.page-faq .faq-topic__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-topic__side {
  border-left: 3px solid var(--edge);
  padding-left: 16px;
}

.page-faq .faq-topic--cream .faq-topic__side {
  border-left-color: var(--press);
}

.page-faq .faq-topic__num {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(42px, 8vw, 76px);
  font-weight: 700;
  line-height: .88;
  letter-spacing: -.05em;
  color: var(--gold);
}

.page-faq .faq-topic--cream .faq-topic__num { color: var(--press); }

.page-faq .faq-topic__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-faq .faq-topic__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--note);
}

.page-faq .faq-topic--cream .faq-topic__note { color: rgba(35, 32, 28, .62); }

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-faq .qa {
  display: grid;
  grid-template-columns: var(--faq-idx-col) minmax(0, 1fr);
  gap: 6px 16px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-top: 1px solid var(--faq-hair);
}

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

.page-faq .qa__idx {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(17px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--note);
  transition: color .18s ease, transform .18s ease;
}

.page-faq .qa:hover .qa__idx,
.page-faq .qa:focus-within .qa__idx {
  color: var(--gold);
  transform: translateX(3px);
}

.page-faq .faq-topic--cream .qa__idx { color: rgba(35, 32, 28, .4); }
.page-faq .faq-topic--cream .qa:hover .qa__idx,
.page-faq .faq-topic--cream .qa:focus-within .qa__idx { color: var(--press); }

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

.page-faq .qa__q {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -.005em;
}

.page-faq .qa__a {
  margin: 9px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 239, 227, .78);
}

.page-faq .faq-topic--cream .qa__a { color: rgba(35, 32, 28, .82); }

.page-faq .k {
  font-style: normal;
  color: var(--cyan);
  border-bottom: 2px solid rgba(53, 225, 208, .5);
  padding-bottom: 1px;
}

.page-faq .faq-topic--cream .k {
  color: var(--press);
  border-bottom-color: rgba(200, 56, 44, .42);
}

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 225, 208, .45);
}

.page-faq .faq-topic--cream .qa__body a {
  color: var(--press);
  border-bottom-color: rgba(200, 56, 44, .42);
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  border-bottom-width: 2px;
}

/* ---------- 折叠细节 ---------- */
.page-faq .qa__more {
  margin-top: 12px;
}

.page-faq .qa__more summary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--gold);
}

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

.page-faq .qa__more summary::before {
  content: "+";
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1;
}

.page-faq .qa__more[open] summary::before { content: "−"; }

.page-faq .faq-topic--cream .qa__more summary { color: var(--press); }

.page-faq .qa__more p {
  margin: 10px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--faq-hair);
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 239, 227, .7);
}

.page-faq .faq-topic--cream .qa__more p { color: rgba(35, 32, 28, .72); }

.page-faq .qa__more summary:focus-visible,
.page-faq .qa__body a:focus-visible,
.page-faq .faq-index__list a:focus-visible,
.page-faq .faq-outro a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  padding: clamp(44px, 7vw, 96px) 0 clamp(48px, 8vw, 104px);
  background:
    radial-gradient(circle at 88% 12%, rgba(53, 225, 208, .12), transparent 44%),
    var(--night-deep);
  border-top: 5px solid var(--press);
}

.page-faq .faq-outro__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-outro h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.8vw, 36px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-outro__copy p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 239, 227, .78);
}

.page-faq .faq-outro .eyebrow { color: var(--gold); }

.page-faq .faq-outro__actions {
  margin-top: clamp(20px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-outro__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-faq .faq-outro__links li {
  border-top: 1px solid var(--edge);
}

.page-faq .faq-outro__links li:last-child {
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-outro__links a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 15px 4px;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.6;
  color: var(--note);
  transition: color .18s ease, padding-left .18s ease, background-color .18s ease;
}

.page-faq .faq-outro__links a span {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .faq-outro__links a:hover,
.page-faq .faq-outro__links a:focus-visible {
  color: var(--cream);
  background: rgba(53, 225, 208, .07);
  padding-left: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-hero__meta li + li {
    border-left-width: 1px;
    margin-left: 0;
  }

  .page-faq .faq-outro__links a {
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-topic__grid {
    grid-template-columns: minmax(180px, 250px) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-topic__side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-outro__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(40px, 6vw, 92px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__idx,
  .page-faq .faq-index__list a,
  .page-faq .faq-outro__links a {
    transition: none;
  }

  .page-faq .qa:hover .qa__idx,
  .page-faq .qa:focus-within .qa__idx {
    transform: none;
  }
}
</main>