.page-faq {
  --faq-rule: rgba(217, 169, 74, .22);
  --faq-rule-strong: rgba(217, 169, 74, .55);
  --faq-ink-line: rgba(183, 175, 192, .18);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(1rem, 2.5vw, 1.8rem);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-faq .breadcrumb .breadcrumb__sep {
  color: rgba(217, 169, 74, .6);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(1.2rem, 3vw, 2.2rem);
  padding-bottom: clamp(2rem, 5vw, 3.4rem);
}

.page-faq .faq-hero__frame {
  position: relative;
  overflow: hidden;
  padding: clamp(2.2rem, 7vw, 4.2rem) clamp(1.3rem, 5vw, 3.6rem);
  border: 1px solid rgba(217, 169, 74, .3);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(140, 75, 255, .18), transparent 58%),
    radial-gradient(100% 100% at 0% 100%, rgba(53, 199, 232, .14), transparent 56%),
    var(--ink-2);
  box-shadow: var(--shadow-paper);
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 10px;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(217, 169, 74, .45) 0 1px,
    transparent 1px 14px
  );
  opacity: .75;
  pointer-events: none;
}

.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 46px;
  height: 46px;
  border-top: 1px solid var(--faq-rule-strong);
  border-right: 1px solid var(--faq-rule-strong);
  pointer-events: none;
}

.page-faq .faq-hero__vert {
  position: absolute;
  top: clamp(1.4rem, 3vw, 2.4rem);
  right: clamp(.7rem, 2vw, 1.8rem);
  font-size: .7rem;
  color: rgba(183, 175, 192, .68);
  letter-spacing: .4em;
}

.page-faq .faq-hero__title {
  margin: .75rem 0 1.1rem;
  max-width: 17em;
  font-size: clamp(1.95rem, 6.2vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--paper);
  text-shadow: 0 0 24px rgba(217, 169, 74, .26);
}

.page-faq .faq-hero__lede {
  max-width: 38rem;
  color: var(--body-on-ink);
  opacity: .9;
  font-size: clamp(1rem, 2.4vw, 1.08rem);
  line-height: 1.85;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem clamp(1.2rem, 4vw, 2.8rem);
  margin: 1.8rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px dashed var(--faq-rule);
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  font-size: .84rem;
  color: var(--muted);
}

.page-faq .faq-hero__stats .num {
  font-size: 1.55rem;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -.01em;
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.8rem, 5vw, 3.2rem);
  align-items: start;
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side__fig {
  margin: 0;
  max-width: 260px;
}

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

.page-faq .faq-side__panel {
  margin-top: 1.1rem;
  padding: 1rem 1rem 1.15rem;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
  background: rgba(23, 20, 31, .72);
}

.page-faq .faq-side__label {
  margin: 0 0 .7rem;
  font-family: var(--font-serif);
  font-size: .78rem;
  letter-spacing: .22em;
  color: var(--muted);
}

.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.page-faq .faq-tabs .chip {
  font-size: .82rem;
  letter-spacing: .02em;
  cursor: pointer;
}

.page-faq .faq-tabs .chip[aria-pressed="true"] {
  border-color: var(--orange);
  color: var(--ink);
  background: linear-gradient(120deg, var(--gold) 0%, var(--orange) 100%);
  box-shadow: 0 0 16px rgba(255, 122, 61, .34);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.4rem, 6vw, 4rem);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--faq-rule-strong);
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--ink);
  background: var(--paper);
  padding: .2rem .5rem;
  border-radius: 2px;
  line-height: 1.5;
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(1.3rem, 3.4vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__count {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .faq-group__count .num {
  color: var(--cyan);
  font-size: .95rem;
}

.page-faq .faq-group__lede {
  margin: 1rem 0 .2rem;
  padding-left: .9rem;
  max-width: 38rem;
  border-left: 2px solid rgba(53, 199, 232, .42);
  font-family: var(--font-serif);
  font-size: clamp(.94rem, 2.2vw, 1.06rem);
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .faq-list {
  margin-top: .5rem;
}

.page-faq .faq-item {
  border-bottom: 1px dashed var(--faq-rule);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: 3.1rem minmax(0, 1fr) 1.1rem;
  gap: .6rem;
  align-items: start;
  padding: .95rem 0;
  list-style: none;
  cursor: pointer;
  color: var(--body-on-ink);
  font-size: clamp(.98rem, 2.4vw, 1.06rem);
  font-weight: 600;
  line-height: 1.7;
  transition: color .22s var(--ease);
}

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

.page-faq .faq-q:hover,
.page-faq .faq-item[open] .faq-q {
  color: var(--gold);
}

.page-faq .faq-q__no {
  padding-top: .3rem;
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--gold);
  opacity: .8;
}

.page-faq .faq-q__icon {
  display: grid;
  place-items: center;
  width: 1.1rem;
  height: 1.1rem;
  margin-top: .3rem;
  color: var(--gold);
  transition: transform .24s var(--ease);
}

.page-faq .faq-q__icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-faq .faq-item[open] .faq-q__icon {
  transform: rotate(180deg);
}

.page-faq .faq-a {
  padding: 0 1rem 1.25rem 3.7rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 40rem;
}

.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 199, 232, .45);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 组间装饰 ---------- */
.page-faq .faq-divider {
  margin: clamp(2rem, 5vw, 3.2rem) 0;
  opacity: .82;
}

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

/* ---------- 未找到分流 ---------- */
.page-faq .faq-nofound {
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
}

.page-faq .faq-nofound__paper {
  position: relative;
  padding: clamp(1.8rem, 5vw, 3rem);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink-text);
  box-shadow: var(--shadow-paper);
}

.page-faq .faq-nofound__paper::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed rgba(122, 31, 43, .28);
  border-radius: 2px;
  pointer-events: none;
}

.page-faq .faq-nofound__title {
  position: relative;
  margin: 1rem 0 .9rem;
  font-size: clamp(1.3rem, 3.6vw, 1.95rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink-text);
  max-width: 22em;
}

.page-faq .faq-nofound__text {
  position: relative;
  margin: 0;
  max-width: 40rem;
  font-size: .98rem;
  line-height: 1.9;
  color: var(--ink-text);
}

.page-faq .faq-nofound__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-faq .faq-nofound__note {
  position: relative;
  margin: 1.2rem 0 0;
  font-size: .82rem;
  letter-spacing: .02em;
  color: rgba(46, 42, 54, .72);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 920px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(200px, 268px) minmax(0, 1fr);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 5.75rem;
  }

  .page-faq .faq-tabs {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-tabs .chip {
    justify-content: flex-start;
    text-align: left;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 719px) {
  .page-faq .faq-hero__vert {
    display: none;
  }

  .page-faq .faq-hero__frame {
    padding-right: clamp(1.1rem, 5vw, 2rem);
  }
}

@media (max-width: 559px) {
  .page-faq .faq-q {
    grid-template-columns: 2.3rem minmax(0, 1fr) 1rem;
    gap: .45rem;
  }

  .page-faq .faq-a {
    padding-left: 2.75rem;
    padding-right: .2rem;
  }

  .page-faq .faq-side__fig {
    max-width: 100%;
  }

  .page-faq .faq-nofound__actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q__icon,
  .page-faq .faq-link,
  .page-faq .breadcrumb a {
    transition: none;
  }
}