.page-faq {
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(40px, 7vw, 96px);
}

.page-faq .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-head {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3.4vw, 40px) 0 clamp(20px, 3vw, 34px);
}

.page-faq .faq-head::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -12%;
  width: clamp(220px, 30vw, 380px);
  height: clamp(220px, 30vw, 380px);
  background: var(--mist);
  border-radius: 58% 42% 36% 64% / 46% 56% 44% 54%;
  pointer-events: none;
}

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

.page-faq .faq-title {
  margin: 12px 0 0;
  font-size: clamp(28px, 4.8vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--ink);
}

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

.page-faq .faq-banner {
  margin: 0 0 clamp(26px, 4vw, 48px);
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-top: 4px solid var(--teal);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.6vw, 44px);
  align-items: start;
}

/* 分类索引 */
.page-faq .faq-side {
  background: var(--mist);
  padding: 16px 16px 18px;
  border-left: 4px solid var(--teal);
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-side__item {
  flex: 0 0 auto;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  padding: 8px 13px;
  background: var(--paper);
  border: 1px solid rgba(14, 124, 123, 0.32);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--teal);
  border-color: var(--teal);
}

.page-faq .faq-side__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

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

/* 分类主体 */
.page-faq .faq-cat {
  scroll-margin-top: 84px;
}

.page-faq .faq-cat + .faq-cat {
  margin-top: clamp(32px, 4.6vw, 58px);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 11px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-cat__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lava);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  letter-spacing: -0.01em;
}

.page-faq .faq-cat__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
  white-space: nowrap;
}

/* 手风琴 */
.page-faq .faq-item {
  border-bottom: 1px solid rgba(15, 30, 36, 0.14);
}

.page-faq .faq-q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 2px 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

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

.page-faq .faq-q:hover .faq-q__text {
  color: var(--teal);
}

.page-faq .faq-q__text {
  transition: color 0.2s ease;
}

.page-faq .faq-q__icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  transition: transform 0.28s ease;
}

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

.page-faq .faq-q__icon::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-q__icon::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-q__icon {
  transform: rotate(135deg);
}

.page-faq .faq-a {
  padding: 0 0 20px 0;
  max-width: 100%;
}

.page-faq .faq-a p {
  margin: 0 0 0.85em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

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

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

/* 跟队示例 */
.page-faq .faq-example {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--mist);
  border-top: 4px solid var(--sand);
}

.page-faq .faq-example__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: 12px;
  align-items: start;
}

.page-faq .faq-table-scroll {
  overflow-x: auto;
}

.page-faq .faq-rules {
  width: 100%;
  min-width: 430px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-rules th {
  text-align: left;
  padding: 8px 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--slate);
  border-bottom: 2px solid var(--teal);
  white-space: nowrap;
}

.page-faq .faq-rules td {
  padding: 12px 10px;
  border-bottom: 1px solid rgba(15, 30, 36, 0.12);
  color: var(--ink);
  vertical-align: top;
}

.page-faq .faq-rules tbody tr:nth-child(even) {
  background: rgba(246, 243, 236, 0.82);
}

.page-faq .faq-rules .num {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--clay);
  white-space: nowrap;
}

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

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

.page-faq .media__caption {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--slate);
  line-height: 1.6;
}

/* 还有问题时 */
.page-faq .faq-help {
  margin-top: clamp(34px, 5vw, 60px);
  padding: clamp(22px, 3.6vw, 42px);
  background: var(--indigo);
  color: var(--paper);
  border-radius: 0 56px 0 0;
}

.page-faq .faq-help__label {
  color: var(--sand);
}

.page-faq .faq-help__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 22ch;
}

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

.page-faq .faq-help__links {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-help__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 2px;
  border-bottom: 1px solid rgba(246, 243, 236, 0.24);
  color: var(--paper);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-help__links a:hover,
.page-faq .faq-help__links a:focus-visible {
  color: var(--sand);
  padding-left: 8px;
}

.page-faq .faq-q:focus-visible,
.page-faq .faq-side__link:focus-visible,
.page-faq .faq-a a:focus-visible,
.page-faq .faq-help__links a:focus-visible {
  outline: 2px solid var(--lava);
  outline-offset: 2px;
}

@media (min-width: 880px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 20px;
  }

  .page-faq .faq-side__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-side__item {
    flex: 1 1 auto;
  }

  .page-faq .faq-side__link {
    justify-content: space-between;
    background: transparent;
    border: 0;
    border-bottom: 1px dashed rgba(15, 30, 36, 0.22);
    padding: 11px 0;
    font-size: 15px;
  }

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

  .page-faq .faq-a {
    max-width: 74%;
  }

  .page-faq .faq-q {
    font-size: 17px;
    padding: 18px 2px 18px 0;
  }

  .page-faq .faq-example__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__icon,
  .page-faq .faq-q__text,
  .page-faq .faq-side__link,
  .page-faq .faq-help__links a {
    transition: none;
  }
}
<<<END>>>