.page-faq {
  --faq-gap: clamp(26px, 4.2vw, 56px);
  --faq-pad-y: clamp(36px, 6vw, 76px);
  background: var(--deep);
  color: var(--on-deep);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

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

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 3.4vw, 34px);
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--on-deep-dim);
}

.page-faq .breadcrumbs__link {
  color: var(--on-deep-dim);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-faq .breadcrumbs__link:hover,
.page-faq .breadcrumbs__link:focus-visible {
  color: var(--cyan);
}

.page-faq .breadcrumbs__sep {
  color: var(--rock);
}

.page-faq .breadcrumbs__current {
  color: var(--cyan-soft);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5vw, 58px) 0 clamp(44px, 7vw, 88px);
  background:
    radial-gradient(110% 82% at 84% 2%, rgba(33, 230, 214, .16), transparent 60%),
    radial-gradient(88% 70% at 2% 100%, rgba(255, 122, 47, .11), transparent 64%),
    linear-gradient(166deg, var(--abyss) 0%, var(--deep) 58%, var(--deep-mid) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 4%, var(--cyan) 40%, var(--amber) 78%, transparent 96%);
  opacity: .55;
}

.page-faq .faq-hero__grid {
  align-items: end;
  column-gap: var(--faq-gap);
  row-gap: clamp(22px, 3vw, 34px);
}

.page-faq .faq-hero__title {
  margin: .42em 0 .58em;
  max-width: 14em;
  font-family: var(--font-head);
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  max-width: 44em;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--on-deep);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 30px);
}

.page-faq .faq-hero__panel {
  position: relative;
  padding: 22px 22px 24px;
  background: linear-gradient(158deg, rgba(18, 64, 95, .92), rgba(4, 18, 31, .94));
  box-shadow: inset 0 0 0 1px var(--line-strong), var(--shadow-panel);
  border-radius: var(--radius);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--on-deep-dim);
}

.page-faq .faq-hero__stats li:last-child {
  border-bottom: 0;
}

.page-faq .faq-hero__stats .mono {
  font-size: 22px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: .02em;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-main {
  padding: var(--faq-pad-y) 0 clamp(48px, 7.5vw, 100px);
  background: linear-gradient(180deg, var(--deep) 0%, var(--abyss) 100%);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: .34em 0 .9em;
  font-family: var(--font-head);
  font-size: clamp(19px, 2.5vw, 25px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-index__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  background: rgba(10, 39, 64, .74);
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  transition: border-color var(--t-fast), background var(--t-fast), color var(--t-fast);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--cyan-soft);
  border-left-color: var(--cyan);
  background: rgba(18, 64, 95, .94);
  color: var(--paper);
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-index__name {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-index__count {
  flex: 0 0 auto;
  padding: 1px 7px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 11.5px;
  color: var(--on-deep-dim);
}

.page-faq .faq-index__figure {
  margin: clamp(20px, 3vw, 28px) 0 0;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(38px, 5.5vw, 72px);
  min-width: 0;
}

.page-faq .faq-group,
.page-faq .faq-help {
  scroll-margin-top: 104px;
  min-width: 0;
}

.page-faq .faq-group__head {
  position: relative;
  display: grid;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 72px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-group__index {
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 2.9vw, 31px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 52em;
  font-size: 14.5px;
  color: var(--on-deep-dim);
}

.page-faq .faq-group .accordion {
  margin-top: 6px;
}

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

.page-faq .faq-q {
  margin: 0;
  font-size: inherit;
  font-weight: 400;
}

.page-faq .faq-group .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  column-gap: 14px;
  row-gap: 4px;
  width: 100%;
  padding: 17px 4px;
  border: 0;
  background: none;
  text-align: left;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.6;
  color: var(--paper);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast);
}

.page-faq .faq-group .accordion__trigger:hover,
.page-faq .faq-group .accordion__trigger:focus-visible {
  color: var(--cyan-soft);
  background: rgba(18, 64, 95, .34);
}

.page-faq .faq-group .accordion__index {
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-group .faq-q__text {
  min-width: 0;
}

.page-faq .faq-group .accordion__meta {
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--on-deep-dim);
  white-space: nowrap;
}

.page-faq .faq-group .accordion__sign {
  flex: 0 0 auto;
}

.page-faq .faq-group .accordion__panel {
  margin: 0 0 16px;
  padding: 18px 20px;
  border-left: 3px solid var(--clay);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.78;
  box-shadow: inset 0 0 0 1px rgba(14, 26, 34, .08), 0 14px 28px rgba(4, 18, 31, .38);
}

.page-faq .faq-group .accordion__panel p {
  margin: 0;
  max-width: 62ch;
}

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

.page-faq .faq-group .accordion__panel a:hover,
.page-faq .faq-group .accordion__panel a:focus-visible {
  color: var(--amber);
}

/* ---------- 还没解决 ---------- */
.page-faq .faq-help {
  position: relative;
  padding: clamp(24px, 3.6vw, 40px);
  background: linear-gradient(150deg, var(--deep-mid) 0%, var(--abyss) 100%);
  box-shadow: inset 0 0 0 1px var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  align-items: center;
}

.page-faq .faq-help__title {
  margin: .34em 0 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.26;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--on-deep);
}

.page-faq .faq-help__list .mono {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .faq-help__foot {
  display: grid;
  justify-items: start;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 30px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__foot p {
  margin: 0;
  max-width: 46em;
  font-size: 14.5px;
  color: var(--on-deep-dim);
}

.page-faq .faq-help__figure {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 620px) {
  .page-faq .faq-group .accordion__trigger {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas:
      "idx text sign"
      "idx meta sign";
    padding: 15px 2px;
  }

  .page-faq .faq-group .accordion__index {
    grid-area: idx;
  }

  .page-faq .faq-group .faq-q__text {
    grid-area: text;
  }

  .page-faq .faq-group .accordion__meta {
    grid-area: meta;
  }

  .page-faq .faq-group .accordion__sign {
    grid-area: sign;
  }

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

  .page-faq .faq-group .accordion__panel {
    padding: 16px 16px;
    font-size: 14.5px;
  }
}

@media (min-width: 800px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
    gap: clamp(32px, 4.6vw, 64px);
    align-items: start;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-group .accordion__trigger {
    transition: none;
  }
}