.page-faq {
  --faq-line: rgba(169, 214, 229, 0.14);
  --faq-panel: rgba(14, 42, 63, 0.6);
  background:
    radial-gradient(120% 70% at 86% -8%, rgba(217, 164, 65, 0.16), transparent 58%),
    radial-gradient(88% 56% at 2% 4%, rgba(43, 37, 96, 0.55), transparent 62%),
    var(--ice-deep);
  color: var(--ice-white);
  padding-bottom: 0;
}

.page-faq .page-lede {
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ice-blue);
  margin: 0;
}

.page-faq .index-label {
  margin: 0 0 6px;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 22px 0 34px;
  border-bottom: 1px solid var(--faq-line);
  background:
    repeating-linear-gradient(90deg, rgba(169, 214, 229, 0.06) 0 1px, transparent 1px 64px),
    linear-gradient(165deg, rgba(43, 37, 96, 0.5), rgba(7, 26, 43, 0) 64%);
}

.page-faq .faq-hero::before,
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-gold);
  pointer-events: none;
}

.page-faq .faq-hero::before {
  top: 10px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-hero::after {
  right: 12px;
  bottom: 10px;
  border-left: 0;
  border-top: 0;
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-faq .faq-crumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--data-slate);
}

.page-faq .faq-crumbs a {
  color: var(--ice-blue);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--gold-bright);
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 10px 0 16px;
  color: var(--ice-white);
}

.page-faq .faq-side {
  position: relative;
  padding: 18px 16px 18px;
  border: 1px solid var(--line-gold);
  background: linear-gradient(158deg, rgba(217, 164, 65, 0.13), rgba(14, 42, 63, 0.72) 58%);
}

.page-faq .faq-side::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(217, 164, 65, 0.18);
  pointer-events: none;
}

.page-faq .faq-side__mail {
  position: relative;
  margin: 8px 0 10px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  color: var(--gold-bright);
  overflow-wrap: anywhere;
}

.page-faq .faq-side__meta {
  position: relative;
  margin: 0 0 10px;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--ice-blue);
}

.page-faq .faq-side .btn {
  position: relative;
  margin-top: 4px;
}

/* ---------- 最常查标签带 ---------- */
.page-faq .quickbar {
  border-bottom: 1px solid var(--faq-line);
  background: rgba(14, 42, 63, 0.55);
}

.page-faq .quickbar__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
}

.page-faq .quickbar__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--brand-gold);
  white-space: nowrap;
}

.page-faq .quickbar__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .quickbar__list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 15px;
  border: 1px solid var(--line-mid);
  color: var(--ice-blue);
  font-size: 0.85rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms var(--ease), color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-faq .quickbar__list a:hover,
.page-faq .quickbar__list a:focus-visible {
  border-color: var(--brand-gold);
  color: var(--gold-bright);
  background: rgba(217, 164, 65, 0.1);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 22px;
  padding: 28px 0 56px;
}

.page-faq .faq-toc {
  border: 1px solid var(--faq-line);
  background: var(--faq-panel);
  padding: 16px 14px;
}

.page-faq .faq-toc__list {
  display: grid;
  gap: 2px;
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 10px 6px 12px;
  border-left: 2px solid transparent;
  color: var(--ice-blue);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--ice-white);
  background: rgba(169, 214, 229, 0.08);
}

.page-faq .faq-toc__list a.is-current,
.page-faq .faq-toc__list a[aria-current] {
  border-left-color: var(--brand-gold);
  color: var(--gold-bright);
  background: rgba(217, 164, 65, 0.1);
}

.page-faq .faq-toc__tip {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--data-slate);
}

/* ---------- 分类与问答 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 92px;
  padding-top: 22px;
}

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

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--brand-gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ice-white);
}

.page-faq .faq-group__desc {
  flex-basis: 100%;
  margin: 4px 0 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ice-blue);
  opacity: 0.82;
}

.page-faq .faq-figure {
  margin: 18px 0 14px;
  padding: 6px;
  border: 1px solid var(--line-mid);
  background: rgba(169, 214, 229, 0.04);
}

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

.page-faq .faq-figure figcaption {
  padding: 9px 4px 2px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ice-blue);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 54px;
  padding: 15px 10px 15px 14px;
  list-style: none;
  cursor: pointer;
  font-size: 0.97rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice-white);
  transition: color 180ms var(--ease), background-color 180ms var(--ease);
}

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

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

.page-faq .qa__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  bottom: 13px;
  width: 2px;
  background: var(--brand-gold);
  opacity: 0;
  transition: opacity 180ms var(--ease);
}

.page-faq .qa__q:hover {
  background: rgba(169, 214, 229, 0.05);
}

.page-faq .qa__q:hover::before {
  opacity: 0.55;
}

.page-faq .qa[open] > .qa__q::before {
  opacity: 1;
}

.page-faq .qa[open] > .qa__q {
  color: var(--gold-bright);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  min-width: 24px;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--brand-gold);
}

.page-faq .qa__sign {
  flex: 0 0 auto;
  margin-left: auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-gold);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--brand-gold);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-faq .qa[open] .qa__sign {
  transform: rotate(45deg);
  border-color: var(--gold-bright);
  color: var(--gold-bright);
}

.page-faq .qa__a {
  padding: 0 14px 20px 48px;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--ice-blue);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .qa__a strong {
  color: var(--ice-white);
  font-weight: 600;
}

.page-faq .qa__a a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 下一步 ---------- */
.page-faq .faq-next {
  position: relative;
  margin-top: 34px;
  padding: 24px 20px 26px;
  border: 1px solid var(--line-gold);
  background: linear-gradient(152deg, rgba(43, 37, 96, 0.55), rgba(14, 42, 63, 0.4) 62%);
}

.page-faq .faq-next__text {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ice-blue);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 30px 0 44px;
  }

  .page-faq .faq-body {
    padding: 40px 0 72px;
  }

  .page-faq .qa__q {
    padding: 17px 12px 17px 16px;
    font-size: 1.01rem;
  }

  .page-faq .qa__a {
    padding: 0 26px 22px 52px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
    gap: 44px;
  }

  .page-faq .faq-body {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-group {
    padding-top: 30px;
  }

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

  .page-faq .faq-next {
    padding: 30px 28px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__q,
  .page-faq .qa__q::before,
  .page-faq .qa__sign,
  .page-faq .faq-toc__list a,
  .page-faq .quickbar__list a,
  .page-faq .faq-crumbs a {
    transition: none;
  }

  .page-faq .qa[open] .qa__sign {
    transform: none;
  }
}