.page-faq {
  --faq-line: rgba(217, 164, 65, 0.22);
  --faq-tint: rgba(217, 164, 65, 0.055);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(2rem, 4vw, 3.5rem);
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(200, 52, 43, 0.22) 0%, transparent 58%),
    radial-gradient(90% 80% at 4% 100%, rgba(12, 38, 36, 0.9) 0%, transparent 62%),
    var(--ink);
  border-bottom: 2px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  top: -30%;
  width: 46vw;
  height: 46vw;
  max-width: 620px;
  max-height: 620px;
  border: 2px dashed var(--faq-line);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.55;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: end;
}

.page-faq .faq-hero h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--ivory);
  text-wrap: balance;
}

.page-faq .faq-hero .lede {
  margin: 1.25rem 0 0;
  max-width: 46ch;
  color: var(--stone);
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--faq-line);
}

.page-faq .faq-hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-faq .faq-hero__stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__stats .stat--red .stat__value {
  color: var(--cinnabar);
}

.page-faq .faq-hero__stats .stat__label {
  font-size: 0.8125rem;
  color: var(--stone);
  letter-spacing: 0.04em;
}

/* ---------- 主体对照布局 ---------- */
.page-faq .faq-body {
  padding-block: clamp(2.5rem, 5vw, 4.5rem) clamp(3rem, 6vw, 6rem);
  background: var(--ink);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

.page-faq .faq-index {
  border: 2px solid var(--faq-line);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.25rem 1.5rem;
}

.page-faq .faq-index__title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__list li + li {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 0.5rem;
  align-items: baseline;
  padding: 0.7rem 0.25rem 0.7rem 0.5rem;
  border-left: 3px solid transparent;
  color: var(--ivory);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.45;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-left-color: var(--gold);
  background: var(--faq-tint);
  color: var(--gold-light);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
}

.page-faq .faq-index__note {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 6rem;
  border-top: 2px solid var(--faq-line);
  padding-top: 1.5rem;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  margin-bottom: 1.5rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.35rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cinnabar);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--ivory);
}

.page-faq .faq-group__desc {
  margin: 0.6rem 0 0;
  max-width: 54ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 1.75rem;
  border: 2px solid var(--faq-line);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.page-faq .faq-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-faq .faq-figure--tall img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure figcaption {
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--stone);
}

/* ---------- 问答折叠组 ---------- */
.page-faq .accordion__item {
  border-bottom: 1px solid var(--line-soft);
  border-left: 3px solid transparent;
  background: transparent;
  transition: border-left-color 0.28s var(--ease), background 0.28s var(--ease);
}

.page-faq .accordion__item:has(.accordion__trigger[aria-expanded="true"]) {
  border-left-color: var(--gold);
  background: var(--faq-tint);
}

.page-faq .accordion__trigger {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) 1.25rem;
  gap: 0.75rem;
  align-items: start;
  width: 100%;
  padding: 1.1rem 0.85rem;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: clamp(0.9375rem, 1.8vw, 1.0625rem);
  line-height: 1.55;
  transition: color 0.25s var(--ease);
}

.page-faq .accordion__trigger:hover,
.page-faq .accordion__trigger:focus-visible {
  color: var(--gold-light);
}

.page-faq .accordion__index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--gold);
}

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

.page-faq .accordion__icon {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
  margin-top: 0.45rem;
}

.page-faq .accordion__icon::before,
.page-faq .accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .accordion__icon::before {
  left: 0;
  top: 50%;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .accordion__icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translateX(-50%) rotate(90deg);
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::before {
  background: var(--gold-light);
}

.page-faq .accordion__panel-inner {
  padding: 0 1.25rem 1.5rem 4rem;
  color: var(--stone);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-faq .accordion__panel-inner p {
  margin: 0 0 0.75rem;
}

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

.page-faq .accordion__panel-inner a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .accordion__panel-inner a:hover,
.page-faq .accordion__panel-inner a:focus-visible {
  color: var(--gold-light);
}

/* ---------- 客服区块 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.page-faq .faq-support__card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.15rem 1.25rem;
  border: 2px solid var(--faq-line);
  border-left: 5px solid var(--cinnabar);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-support__key {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-support__value {
  align-self: flex-start;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: clamp(0.9375rem, 2.2vw, 1.125rem);
  font-weight: 700;
  color: var(--ivory);
  text-align: left;
  word-break: break-all;
  transition: color 0.25s var(--ease);
}

.page-faq .faq-support__value:hover,
.page-faq .faq-support__value:focus-visible {
  color: var(--gold-light);
}

.page-faq .faq-support__value[data-copy-state="done"] {
  color: var(--cyan);
}

.page-faq .faq-support__hint,
.page-faq .faq-support__plain {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 提交清单 ---------- */
.page-faq .faq-checklist {
  border: 2px solid var(--faq-line);
  background: linear-gradient(180deg, rgba(12, 38, 36, 0.55) 0%, var(--ink-2) 100%);
  padding: 1.5rem 1.25rem;
}

.page-faq .faq-checklist__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ivory);
}

.page-faq .faq-checklist__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.page-faq .faq-checklist__list li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.6rem;
  align-items: baseline;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-checklist__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
}

.page-faq .faq-checklist__foot {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-checklist__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 桌面端 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero__actions .btn {
    min-width: 11rem;
    justify-content: center;
  }

  .page-faq .faq-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-support__card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 4rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: clamp(2.5rem, 4vw, 4.5rem);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 6.5rem;
    padding: 1.5rem 1.35rem 1.6rem;
  }

  .page-faq .accordion__trigger {
    padding: 1.25rem 1.25rem 1.25rem 0.85rem;
  }

  .page-faq .accordion__panel-inner {
    padding: 0 2.5rem 1.75rem 4rem;
    max-width: 68ch;
  }

  .page-faq .faq-checklist {
    padding: 1.75rem 2rem;
  }

  .page-faq .faq-checklist__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .accordion__item,
  .page-faq .accordion__trigger,
  .page-faq .accordion__icon::before,
  .page-faq .accordion__icon::after,
  .page-faq .faq-support__value {
    transition: none;
  }
}