.page-faq {
  color: var(--white);
  --faq-rail-w: 236px;
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(26px, 5vw, 56px) clamp(30px, 5vw, 60px);
  background:
    radial-gradient(115% 88% at 84% 6%, rgba(20, 224, 200, 0.15), transparent 58%),
    radial-gradient(95% 80% at 4% 98%, rgba(255, 106, 26, 0.14), transparent 62%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--cyan) 52%, transparent 92%);
  transform: skewY(var(--slope));
  transform-origin: left center;
}

.page-faq .faq-hero .crumbs {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--silver);
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero .crumbs a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
}

.page-faq .faq-hero .crumbs a:hover,
.page-faq .faq-hero .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-faq .eyebrow {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  line-height: 1.2;
}

.page-faq h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(38px, 8.4vw, 82px);
  line-height: 1.03;
  letter-spacing: -0.025em;
  margin: 0 0 20px;
  max-width: 16ch;
}

.page-faq .faq-h1__accent {
  display: inline-block;
  color: var(--orange);
  transform: skew(-6deg);
  transform-origin: left bottom;
}

.page-faq .lede {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.75;
  color: var(--silver);
  max-width: 40ch;
  margin: 0 0 26px;
}

.page-faq .faq-facts {
  list-style: none;
  margin: 0;
  padding: 13px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--silver);
}

.page-faq .faq-facts .num {
  color: var(--white);
  font-size: 16px;
  margin-right: 3px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-faq .media__caption {
  margin: 0;
  padding: 11px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--silver);
  border-top: 1px solid var(--line);
  background: rgba(27, 27, 71, 0.55);
}

/* ---------- 两栏骨架 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  padding-block: clamp(30px, 5vw, 64px) clamp(48px, 7vw, 96px);
}

.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}

.page-faq .faq-rail__title {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--silver);
  margin: 0 0 12px;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--white);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.2;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-rail__list a .num {
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 106, 26, 0.1);
}

.page-faq .faq-rail__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  color: var(--silver);
}

.page-faq .faq-rail__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 200, 0.5);
}

/* ---------- 问答区块 ---------- */

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

.page-faq .faq-group {
  padding-bottom: clamp(34px, 5vw, 60px);
}

.page-faq .faq-group + .faq-group {
  padding-top: clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 22ch;
}

.page-faq .faq-group__lede {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--silver);
}

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

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

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--white);
  transition: color 0.25s var(--ease);
}

.page-faq .qa > summary::-webkit-details-marker {
  display: none;
}

.page-faq .qa > summary:hover,
.page-faq .qa > summary:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--wine);
  background: rgba(255, 106, 26, 0.14);
  border: 1px solid rgba(255, 106, 26, 0.35);
  border-radius: var(--radius);
  padding: 3px 6px;
  margin-top: 4px;
  line-height: 1;
}

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

.page-faq .qa__mark {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 400;
  color: var(--orange);
  transition: transform 0.3s var(--ease), background-color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-faq .qa[open] > summary {
  color: var(--orange);
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(45deg);
  background: rgba(255, 106, 26, 0.16);
  border-color: var(--orange);
}

.page-faq .qa__body {
  padding: 0 2px 20px;
  max-width: 62ch;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--silver);
}

.page-faq .faq-hi {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

/* ---------- 费用表 ---------- */

.page-faq .table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--teal);
  margin-bottom: clamp(20px, 3vw, 30px);
  -webkit-overflow-scrolling: touch;
}

.page-faq table.data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.6;
}

.page-faq table.data-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-faq table.data-table th,
.page-faq table.data-table td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.page-faq table.data-table thead th {
  position: sticky;
  top: 0;
  background: var(--indigo);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.page-faq table.data-table tbody th {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  font-weight: 400;
  white-space: nowrap;
}

.page-faq table.data-table tbody td {
  color: var(--white);
}

.page-faq table.data-table tbody tr:last-child th,
.page-faq table.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq table.data-table tbody tr:hover th,
.page-faq table.data-table tbody tr:hover td {
  background: rgba(20, 224, 200, 0.08);
}

.page-faq .faq-billing__figure {
  margin: 0 0 clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-deep);
}

/* ---------- 分类索引 ---------- */

.page-faq .faq-index {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-index__item {
  display: block;
  padding: 22px 20px;
  background: var(--indigo);
  text-decoration: none;
  color: var(--white);
  transition: background-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  background: #23235a;
  outline: none;
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-faq .faq-index__count {
  display: block;
  font-size: 34px;
  line-height: 1;
  color: var(--orange);
  margin-bottom: 12px;
}

.page-faq .faq-index__name {
  display: block;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -0.01em;
  margin-bottom: 7px;
}

.page-faq .faq-index__desc {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver);
}

.page-faq .faq-index__more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-index__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 200, 0.45);
}

.page-faq .faq-index__more a:hover,
.page-faq .faq-index__more a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 联系引导 ---------- */

.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  background: var(--wine);
  border-radius: var(--radius);
  padding: clamp(26px, 4vw, 44px);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(90% 120% at 92% 10%, rgba(255, 106, 26, 0.26), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-help__inner {
  position: relative;
}

.page-faq .faq-help .eyebrow {
  color: var(--gold);
  border-left-color: var(--gold);
}

.page-faq .faq-help h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  max-width: 18ch;
}

.page-faq .faq-help p {
  margin: 0 0 14px;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--white);
}

.page-faq .faq-help p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 200, 0.5);
}

.page-faq .faq-help p a:hover,
.page-faq .faq-help p a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-faq .faq-help .faq-help__note {
  margin-bottom: 0;
  font-size: 13px;
  color: rgba(255, 246, 234, 0.78);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(34px, 4vw, 64px);
  }

  .page-faq .faq-hero__media {
    margin-top: 8px;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 4.5vw, 72px);
  }

  .page-faq .faq-rail {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__inner {
    position: sticky;
    top: calc(var(--topbar) + 28px);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-faq .faq-rail__list a {
    width: 100%;
    padding: 10px 12px;
    border-color: transparent;
    border-left: 2px solid var(--line);
    border-radius: 0;
    font-size: 14px;
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    border-left-color: var(--orange);
    background: rgba(255, 106, 26, 0.08);
  }

  .page-faq .faq-group + .faq-group {
    padding-top: clamp(40px, 4.5vw, 64px);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__mark,
  .page-faq .faq-index__item,
  .page-faq .faq-rail__list a {
    transition: none;
  }
}
</main>