.page-faq {
  --faq-hair: rgba(216, 210, 196, 0.16);
  --faq-hair-strong: rgba(216, 210, 196, 0.3);
  --faq-dim: rgba(10, 22, 51, 0.55);
  background: var(--sky-abyss);
  color: var(--fog);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* 面包屑 */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 18px 0 4px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cool);
}

.page-faq .breadcrumbs__link {
  color: var(--cool);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step-fast), border-color var(--step-fast);
}

.page-faq .breadcrumbs__link:hover {
  color: var(--teal-mist);
  border-bottom-color: var(--teal-mist);
}

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

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

/* 首屏 */
.page-faq .faq-hero {
  border-bottom: 1px solid var(--faq-hair);
  margin-bottom: clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(20px, 4vw, 44px);
  padding-bottom: clamp(28px, 5vw, 60px);
}

.page-faq .faq-hero__text {
  max-width: 40em;
}

.page-faq .faq-hero .label {
  display: inline-block;
  margin-bottom: 14px;
}

.page-faq .page-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: #fff;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-fact {
  background: var(--sky-panel);
  padding: 14px 16px;
  min-width: 0;
}

.page-faq .faq-fact__k {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-faq .faq-fact__v {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 700;
  color: var(--teal-mist);
  word-break: break-word;
}

.page-faq .faq-fact:last-child .faq-fact__v {
  font-size: 16px;
  color: var(--fog);
}

/* 主体骨架：左索引 右问答流 */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

/* 左侧索引 */
.page-faq .faq-index {
  border: 1px solid var(--faq-hair);
  background: var(--sky-panel);
  padding: 18px 18px 20px;
  align-self: start;
}

.page-faq .faq-index > .label {
  display: block;
  margin-bottom: 14px;
}

.page-faq .faq-index .anchor-nav {
  display: grid;
  gap: 2px;
}

.page-faq .faq-index .anchor-nav__link {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 10px 10px 10px 22px;
  text-decoration: none;
  color: var(--fog);
  border-left: 2px solid transparent;
  transition: background var(--step-fast), border-color var(--step-fast), color var(--step-fast);
}

.page-faq .faq-index .anchor-nav__link::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--cool);
  transform: translateY(-50%);
  transition: width var(--step-fast), background var(--step-fast);
}

.page-faq .faq-index .anchor-nav__link:hover {
  background: var(--sky-card);
}

.page-faq .faq-index .anchor-nav__link.is-active {
  border-left-color: var(--orange);
  background: var(--sky-card);
}

.page-faq .faq-index .anchor-nav__link.is-active::before {
  width: 12px;
  background: var(--orange);
}

.page-faq .faq-idx__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cool);
}

.page-faq .faq-idx__name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-index__foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-index__hint {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
}

.page-faq .faq-index__link {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--teal-mist);
  text-decoration: none;
  border-bottom: 1px solid var(--teal);
  padding-bottom: 2px;
}

.page-faq .faq-index__link:hover {
  color: #fff;
  border-bottom-color: var(--orange);
}

/* 问答流 */
.page-faq .faq-stream {
  display: grid;
  gap: clamp(36px, 6vw, 72px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-group .section__head {
  margin-bottom: 20px;
}

.page-faq .faq-group .section__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1.15;
  color: #fff;
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cool);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--faq-hair);
  background: var(--sky-panel);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-figure .media__caption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cool);
}

.page-faq .faq-figure.media--square img {
  aspect-ratio: 1 / 1;
}

.page-faq .faq-figure.media--wide img {
  aspect-ratio: 3 / 2;
}

/* 手风琴 */
.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--faq-hair-strong);
  background: var(--sky-panel);
  margin-bottom: 8px;
  transition: border-color var(--step-base), background var(--step-base), transform var(--step-base);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  border-color: var(--faq-hair-strong);
}

.page-faq .faq-item[open] {
  background: var(--sky-card);
  border-left-color: var(--teal);
  border-color: rgba(31, 165, 160, 0.36);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--fog);
  transition: color var(--step-fast);
}

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

.page-faq .faq-item__q:hover {
  color: #fff;
}

.page-faq .faq-item[open] .faq-item__q {
  color: #fff;
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 700;
  color: var(--cool);
  letter-spacing: 0.04em;
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--orange);
}

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

.page-faq .faq-item__q::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cool);
  border-bottom: 2px solid var(--cool);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--step-base), border-color var(--step-base);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(225deg) translate(-2px, -2px);
  border-color: var(--teal-mist);
}

.page-faq .faq-item__a {
  padding: 0 16px 18px 16px;
  border-top: 1px solid var(--faq-hair);
  margin-top: 2px;
}

.page-faq .faq-item__a p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-item__a a {
  color: var(--teal-mist);
  text-decoration: underline;
  text-decoration-color: rgba(31, 165, 160, 0.55);
  text-underline-offset: 3px;
  transition: color var(--step-fast), text-decoration-color var(--step-fast);
}

.page-faq .faq-item__a a:hover {
  color: var(--orange);
  text-decoration-color: var(--orange);
}

/* 联系区块 */
.page-faq .faq-contact {
  border: 1px solid var(--faq-hair);
  border-top: 3px solid var(--orange);
  background: linear-gradient(180deg, var(--sky-card) 0%, var(--sky-panel) 100%);
  padding: 24px 20px 26px;
}

.page-faq .faq-contact .label {
  display: inline-block;
  margin-bottom: 12px;
}

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.2vw, 1.9rem);
  line-height: 1.2;
  color: #fff;
}

.page-faq .faq-contact__desc {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.page-faq .faq-contact__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-hair);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cool);
  word-break: break-word;
}

/* 显现动效 */
.page-faq [data-reveal] {
  opacity: 1;
}

.page-faq [data-js="on"] [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.page-faq [data-js="on"] [data-reveal][data-visible] {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-js="on"] [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq-item,
  .page-faq .faq-item__q::after {
    transition: none;
  }
}

/* 平板及以上 */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

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

  .page-faq .faq-fact {
    padding: 13px 18px;
  }
}

/* 桌面：索引固定，问答流独立滚动节奏 */
@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
    padding: 22px 20px 24px;
  }

  .page-faq .faq-group__desc {
    font-size: 16px;
  }

  .page-faq .faq-item__q {
    padding: 17px 20px;
    font-size: 17px;
  }

  .page-faq .faq-item__a {
    padding: 0 20px 22px;
  }

  .page-faq .faq-contact {
    padding: 30px 28px 32px;
  }
}
<<<END>>>