.page-faq {
  --faq-block: clamp(40px, 6vw, 88px);
  --faq-gap: clamp(24px, 3.4vw, 44px);
  --faq-rule: rgba(108, 127, 148, 0.22);
  --faq-rule-strong: rgba(108, 127, 148, 0.4);
  display: block;
}

/* ---------- 顶部区域 ---------- */

.page-faq .faq-top {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(22px, 3.5vw, 36px);
}

.page-faq .faq-top__inner {
  display: grid;
  gap: clamp(26px, 3.6vw, 44px);
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-faq .crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  color: var(--metal);
}

.page-faq .crumbs__item a {
  color: var(--stone);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

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

.page-faq .faq-top__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: center;
}

.page-faq .faq-top__lead .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--jade);
}

.page-faq .faq-top__title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(28px, 5.2vw, 62px);
  line-height: 1.1;
  color: var(--mist);
}

.page-faq .faq-top__lead .lede {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 0.4vw + 14px, 18px);
  line-height: 1.82;
  color: var(--stone);
}

.page-faq .faq-top__frame {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--faq-rule-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(152deg, rgba(61, 180, 155, 0.14), rgba(10, 26, 43, 0) 52%),
    linear-gradient(300deg, rgba(224, 162, 60, 0.12), rgba(10, 26, 43, 0) 46%),
    var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-top__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 8px);
}

.page-faq .faq-top__frame::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 16px;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(224, 162, 60, 0.55) 0 1px, transparent 1px 14px);
  pointer-events: none;
}

/* ---------- 分区导航 ---------- */

.page-faq .faq-index {
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: grid;
  gap: 4px;
  align-content: start;
  min-height: 100%;
  padding: 14px 14px 16px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-md);
  background: rgba(18, 41, 63, 0.55);
  text-decoration: none;
  color: var(--mist);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--amber);
  background: rgba(18, 41, 63, 0.92);
  transform: translateY(-2px);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-faq .faq-index__n {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .faq-index__t {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-index__d {
  font-size: 12px;
  line-height: 1.5;
  color: var(--stone);
}

/* ---------- 问答分组 ---------- */

.page-faq .qa-group,
.page-faq .faq-index {
  scroll-margin-top: calc(var(--nav-h) + 18px);
}

.page-faq .faq-top + .qa-group {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .qa-group {
  padding-top: var(--faq-block);
  padding-bottom: var(--faq-block);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .qa-group__head {
  margin-bottom: clamp(22px, 3.4vw, 42px);
}

.page-faq .qa-group__num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.page-faq .qa-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.18;
  color: var(--mist);
}

.page-faq .qa-group__title::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  margin-top: 16px;
  border-radius: 2px;
  background: var(--jade);
}

.page-faq .qa-group__lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--stone);
}

.page-faq .qa-group__body {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

/* ---------- 手风琴 ---------- */

.page-faq .qa-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .qa {
  position: relative;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: var(--jade);
  transition: background 0.18s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(224, 162, 60, 0.45);
}

.page-faq .qa[open] {
  border-color: rgba(224, 162, 60, 0.65);
  background:
    linear-gradient(180deg, rgba(224, 162, 60, 0.08), rgba(18, 41, 63, 0.2) 36%),
    var(--ink-800);
}

.page-faq .qa[open]::before {
  background: var(--amber);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 17px 18px 17px 22px;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s var(--ease);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover {
  background: rgba(42, 66, 88, 0.38);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -2px;
}

.page-faq .qa__id {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--jade);
  white-space: nowrap;
  transition: color 0.18s var(--ease);
}

.page-faq .qa[open] .qa__id {
  color: var(--amber);
}

.page-faq .qa__text {
  font-size: clamp(15px, 0.6vw + 13px, 19px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--mist);
}

.page-faq .qa__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  background: var(--stone);
  transition: transform 0.2s var(--ease), background 0.18s var(--ease);
}

.page-faq .qa__icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

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

.page-faq .qa[open] .qa__icon::before {
  background: var(--amber);
}

.page-faq .qa__body {
  padding: 2px 18px 22px 22px;
  animation: faqDrop 0.28s var(--ease) both;
}

@keyframes faqDrop {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .qa__body p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(233, 238, 244, 0.88);
}

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

/* ---------- 侧边浮出卡 ---------- */

.page-faq .qa-aside {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-faq .qa-aside__card {
  padding: 18px 18px 20px;
  border: 1px solid var(--faq-rule-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(160deg, rgba(61, 180, 155, 0.13), rgba(10, 26, 43, 0) 54%),
    var(--ink-800);
  box-shadow: var(--shadow-panel);
}

.page-faq .qa-aside__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-faq .qa-aside__list {
  display: grid;
  gap: 6px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .qa-aside__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.5;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .qa-aside__link .mono {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .qa-aside__link:hover,
.page-faq .qa-aside__link:focus-visible {
  border-color: rgba(224, 162, 60, 0.5);
  background: rgba(42, 66, 88, 0.45);
}

.page-faq .qa-aside__link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-faq .qa-aside__more {
  display: inline-flex;
  width: 100%;
  justify-content: center;
  text-align: center;
}

.page-faq .qa-aside__figure {
  margin: 0;
}

.page-faq .qa-aside__figure .media__frame {
  border: 1px solid var(--faq-rule-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .qa-aside__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .qa-aside__figure .media__caption {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--stone);
}

/* ---------- 返回导航 ---------- */

.page-faq .faq-backtop {
  padding-top: clamp(26px, 4vw, 44px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-faq .faq-backtop__inner {
  display: flex;
  justify-content: flex-start;
}

/* ---------- 平板 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .qa__q {
    padding: 19px 22px 19px 26px;
    gap: 16px;
  }

  .page-faq .qa__body {
    padding: 2px 22px 24px 26px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 1024px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-top__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    align-items: center;
  }

  .page-faq .qa-group__body {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }

  .page-faq .qa-aside {
    position: sticky;
    top: calc(var(--nav-h) + 26px);
  }
}

/* ---------- 减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__body {
    animation: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    transform: none;
  }
}
<<<END>>>