.page-faq {
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep-sea);
  color: var(--sand);
  padding: clamp(20px, 3vw, 32px) 0 clamp(40px, 6vw, 76px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: repeating-linear-gradient(
    90deg,
    var(--coral) 0 42px,
    transparent 42px 84px
  );
  opacity: 0.85;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  font-size: 13px;
  color: var(--reef-soft);
}

.page-faq .faq-hero__crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--reef);
}

.page-faq .faq-hero__crumb a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-faq .faq-hero__crumb [aria-current="page"] {
  color: var(--coral);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--sand);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 32em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: rgba(244, 239, 230, 0.82);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: 30px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-hero__stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__num {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__unit {
  font-size: 13px;
  color: rgba(244, 239, 230, 0.7);
}

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

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 72px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__label {
  margin: 0 0 12px;
  color: var(--reef);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-index__list::-webkit-scrollbar-thumb {
  background: var(--line-strong);
}

.page-faq .faq-index__item {
  display: flex;
  align-items: center;
  gap: 8px;
  scroll-snap-align: start;
  white-space: nowrap;
  padding: 10px 14px;
  min-height: 44px;
  text-decoration: none;
  color: var(--deep-sea);
  background: var(--sand);
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  border-left-color: var(--coral);
  background: var(--coral-soft);
}

.page-faq .faq-index__num {
  font-size: 12px;
  color: var(--coral-deep);
}

.page-faq .faq-index__name {
  font-weight: 500;
}

.page-faq .faq-index__count {
  font-size: 11px;
  color: var(--reef);
  border: 1px solid var(--line);
  padding: 1px 5px;
  border-radius: var(--radius);
}

/* ---------- 分组与手风琴 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: 32px;
  padding-bottom: 8px;
  border-top: 2px solid var(--deep-sea);
}

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

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0 14px;
}

.page-faq .faq-group__num {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  color: var(--coral);
  line-height: 1;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 24px);
  letter-spacing: -0.01em;
  color: var(--deep-sea);
}

.page-faq .faq-group__count {
  margin-left: auto;
  font-size: 12px;
  color: var(--reef);
}

.page-faq .faq-item {
  border-top: 1px solid var(--line);
  background: transparent;
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 15px 2px;
  min-height: 48px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary:hover .faq-item__text {
  color: var(--coral-deep);
}

.page-faq .faq-item__no {
  font-size: 11px;
  color: var(--reef);
  letter-spacing: 0.04em;
}

.page-faq .faq-item__text {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
  transition: color 0.18s ease;
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--coral);
}

.page-faq .faq-item__sign::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  margin-top: -1px;
}

.page-faq .faq-item__sign::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  transition: transform 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 26px 18px 40px;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #2A3B45;
  max-width: 34em;
}

.page-faq .faq-item__a a {
  color: var(--moss);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--coral-deep);
}

.page-faq .faq-hl {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 0.94em;
  color: var(--deep-sea);
  background: rgba(34, 224, 214, 0.3);
  padding: 0 5px;
  border-radius: 2px;
  white-space: nowrap;
}

/* ---------- 结尾咨询 ---------- */
.page-faq .faq-help {
  background: var(--night);
  color: var(--sand);
  padding: clamp(36px, 6vw, 76px) 0;
  border-top: 3px solid var(--coral);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-help__eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
}

.page-faq .faq-help__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--sand);
}

.page-faq .faq-help__desc {
  margin: 16px 0 22px;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.78);
}

.page-faq .faq-mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 12px 14px;
  background: rgba(232, 238, 240, 0.06);
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
}

.page-faq .faq-mail__key {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--reef-soft);
}

.page-faq .faq-mail__val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--sand);
  word-break: break-all;
}

.page-faq .faq-mail__copy {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--coral);
  background: transparent;
  border: 1px solid var(--coral);
  border-radius: var(--radius);
  padding: 6px 12px;
  min-height: 32px;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-mail__copy:hover,
.page-faq .faq-mail__copy:focus-visible {
  background: var(--coral);
  color: var(--night);
}

.page-faq .faq-help__note {
  margin: 12px 0 22px;
  font-size: 13px;
  color: var(--reef-soft);
}

.page-faq .faq-help__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  text-decoration: none;
}

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 254px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

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

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--line-strong);
  }

  .page-faq .faq-index__list > li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__item {
    display: flex;
    width: 100%;
    margin-left: -1px;
    padding: 11px 4px 11px 12px;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .page-faq .faq-index__item:hover,
  .page-faq .faq-index__item:focus-visible {
    background: rgba(255, 107, 61, 0.1);
    border-left-color: var(--coral);
  }

  .page-faq .faq-index__name {
    flex: 1;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-faq .faq-item__a {
    padding-left: 52px;
    padding-right: 40px;
  }
}
<<<END>>>