.page-faq {
  --faq-card: var(--stand);
  --faq-shadow: 6px 6px 0 rgba(0, 0, 0, .5);
  display: block;
  background: var(--night);
  color: var(--ink-1);
}

/* ---------- 首屏：问答墙入口 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) 0 clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 140% at 84% 6%, rgba(242, 193, 78, .14), transparent 58%),
    linear-gradient(180deg, var(--night) 0%, var(--stand) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -10%;
  top: 22%;
  width: 64%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(242, 193, 78, .5), transparent);
  transform: rotate(-13deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-faq .crumbs {
  margin: 0 0 22px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-3);
}

.page-faq .crumbs a {
  color: var(--ink-3);
  text-decoration: none;
}

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

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

.page-faq .exhibit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .exhibit__num {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
  border: 1px solid var(--line);
  padding: 3px 8px;
}

.page-faq h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 7vw, 66px);
  line-height: 1.06;
  letter-spacing: -.012em;
  font-weight: 900;
  color: var(--white);
}

.page-faq .lede {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-faq .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 3px solid var(--line);
  background: var(--stand);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-hero__figure figcaption {
  border-top: 1px solid var(--line);
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ink-3);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

/* ---------- 问答墙骨架 ---------- */
.page-faq .faq-wall {
  display: grid;
  gap: clamp(28px, 4vw, 40px);
  padding-block: clamp(36px, 5vw, 72px) clamp(48px, 7vw, 96px);
}

@media (min-width: 960px) {
  .page-faq .faq-wall {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

/* 左侧主题索引 */
.page-faq .faq-index__title {
  margin: 0 0 14px;
  padding-left: 16px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--fog);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 16px;
  border-left: 2px solid var(--line);
  counter-reset: faqidx;
}

.page-faq .faq-index__item {
  position: relative;
  counter-increment: faqidx;
}

.page-faq .faq-index__item a {
  display: block;
  position: relative;
  padding: 11px 0 11px 26px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .16s var(--ease);
}

.page-faq .faq-index__item a::before {
  content: counter(faqidx, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--fog);
}

.page-faq .faq-index__item a::after {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--gold);
  transform: translateY(-50%);
  transition: height .2s var(--ease);
}

.page-faq .faq-index__item a:hover {
  color: var(--white);
}

.page-faq .faq-index__item a.is-active,
.page-faq .faq-index__item a[aria-current="true"] {
  color: var(--gold);
}

.page-faq .faq-index__item a.is-active::after,
.page-faq .faq-index__item a[aria-current="true"]::after {
  height: 22px;
}

@media (min-width: 960px) {
  .page-faq .faq-index__inner {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 主题分组 ---------- */
.page-faq .faq-cat {
  counter-reset: qa;
  margin-bottom: clamp(40px, 6vw, 72px);
  scroll-margin-top: 112px;
}

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

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
  padding-top: 14px;
  border-top: 3px solid var(--gold);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-cat.is-active .faq-cat__head {
  border-top-color: var(--gold-soft);
}

.page-faq .faq-cat__num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--white);
}

.page-faq .faq-cat__intro {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 问答卡片 ---------- */
.page-faq .qa {
  counter-increment: qa;
  margin-bottom: 14px;
  border: 2px solid var(--line);
  background: var(--stand);
  box-shadow: var(--faq-shadow);
  transition: border-color .16s var(--ease), box-shadow .16s var(--ease);
}

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

.page-faq .qa:hover {
  border-color: var(--gold-soft);
}

.page-faq .qa[open] {
  border-color: var(--gold);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .55);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 14px;
  align-items: start;
  gap: 10px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--white);
  transition: color .16s var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--gold-soft);
}

.page-faq .qa__q::before {
  content: "Q" counter(qa, decimal-leading-zero);
  padding-top: 4px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .qa__mark {
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-right: 2px solid var(--fog);
  border-bottom: 2px solid var(--fog);
  transform: rotate(45deg);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(-135deg);
  border-color: var(--gold);
}

.page-faq .qa__a {
  padding: 0 16px 18px 58px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

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

.page-faq .qa[open] .qa__a {
  animation: faq-reveal .22s var(--ease) both;
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 联系客服区 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-bottom: 20px;
}

@media (min-width: 760px) {
  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, .78fr);
    align-items: start;
  }
}

.page-faq .faq-contact {
  padding: clamp(18px, 2.6vw, 28px);
  border: 2px solid var(--line);
  background: linear-gradient(160deg, var(--stand) 0%, var(--night) 100%);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-contact__list {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 18px;
  margin: 0;
  font-size: 15px;
}

.page-faq .faq-contact__list dt {
  padding-top: 3px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
  white-space: nowrap;
}

.page-faq .faq-contact__list dd {
  margin: 0;
  line-height: 1.7;
  color: var(--ink-1);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__list dd a {
  color: var(--ink-1);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

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

.page-faq .faq-contact__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-3);
}

.page-faq .faq-support__figure {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-support__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

@media (max-width: 480px) {
  .page-faq .faq-contact__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-faq .faq-contact__list dt {
    padding-top: 8px;
  }

  .page-faq .qa__a {
    padding-left: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__mark,
  .page-faq .faq-index__item a,
  .page-faq .faq-index__item a::after {
    transition: none;
  }

  .page-faq .qa[open] .qa__a {
    animation: none;
  }
}