.page-faq {
  --faq-qnum-bg: rgba(255, 200, 87, .12);
  --faq-idx-top: 12px;
  padding-bottom: clamp(48px, 9vw, 104px);
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  margin: 22px 0 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(34px, 5.5vw, 62px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 4%;
  right: -4%;
  width: min(44%, 460px);
  height: 84%;
  border-radius: 28px;
  background: linear-gradient(150deg, rgba(22, 34, 74, .95), rgba(5, 10, 24, 0) 74%);
  transform: skewY(-7deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__title {
  margin: 16px 0 18px;
  font-size: clamp(30px, 5.6vw, 54px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(34, 227, 192, .42);
}

.page-faq .faq-hero__lede {
  max-width: 40em;
  margin: 0;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--line);
  list-style: none;
}

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

.page-faq .faq-fact__v {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold);
}

.page-faq .faq-fact__k {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-dim);
}

.page-faq .faq-hero__figure {
  margin: 0;
  --media-ratio: 58.33%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(34, 227, 192, .18);
  box-shadow: var(--shadow-2);
  transform: rotate(-1.2deg);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  margin-top: clamp(6px, 2vw, 20px);
}

/* ---------- 主题索引 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: var(--faq-idx-top);
  z-index: 8;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--text-dim);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: block;
  padding: 8px 12px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  border-color: rgba(34, 227, 192, .55);
}

.page-faq .faq-index__link.is-current {
  color: var(--ink-void);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: clamp(42px, 6vw, 76px);
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: 138px;
}

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

.page-faq .qa:first-of-type {
  border-top: 1px dashed var(--line);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 2.4vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  transition: color .2s var(--ease);
}

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

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

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--cyan);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 6px;
}

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

.page-faq .qa__no {
  flex: none;
  margin-top: 1px;
  padding: 3px 6px;
  border: 1px dashed var(--line);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--text-dim);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa[open] .qa__no {
  color: var(--gold);
  border-color: rgba(255, 200, 87, .5);
}

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

.page-faq .qa__plus {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px dashed rgba(34, 227, 192, .55);
  border-radius: 6px;
  transition: transform .3s var(--ease), background-color .3s var(--ease), border-color .3s var(--ease);
}

.page-faq .qa__plus::before,
.page-faq .qa__plus::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .qa__plus::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .qa__plus::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .qa[open] .qa__plus {
  transform: rotate(45deg);
  background: rgba(34, 227, 192, .14);
  border-color: var(--cyan);
}

.page-faq .qa__a {
  padding: 0 0 22px;
  animation: faq-slide .26s var(--ease) both;
}

@keyframes faq-slide {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .qa__a > p {
  max-width: 42em;
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .qa__a > p:last-of-type {
  margin-bottom: 0;
}

.page-faq .qnum {
  padding: 0 4px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .96em;
  font-weight: 700;
  color: var(--gold);
  background: var(--faq-qnum-bg);
}

.page-faq .qa__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-faq .qa__links .tag {
  text-decoration: none;
}

/* ---------- 示意图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 6px;
  --media-ratio: 75%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 客服面板 ---------- */
.page-faq .faq-contact {
  margin-top: 30px;
  padding: clamp(20px, 3.5vw, 30px);
}

.page-faq .faq-contact__title {
  margin: 0 0 16px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}

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

.page-faq .faq-contact__k {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text-dim);
}

.page-faq .faq-contact__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  word-break: break-all;
}

.page-faq a.faq-contact__v {
  color: var(--cyan);
  border-bottom: 1px dashed rgba(34, 227, 192, .45);
}

.page-faq a.faq-contact__v:hover {
  color: var(--gold);
  border-bottom-color: rgba(255, 200, 87, .6);
}

.page-faq .faq-contact .note {
  margin-top: 18px;
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-faq .faq-contact__links .tag {
  text-decoration: none;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 600px) {
  .page-faq .qa__a {
    padding-left: 34px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: 52px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 230px) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-index {
    --faq-idx-top: 96px;
    padding: 20px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__link {
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 8px 8px 0;
    font-size: 14px;
    line-height: 1.5;
    white-space: normal;
  }

  .page-faq .faq-index__link.is-current {
    background: rgba(34, 227, 192, .12);
    color: var(--cyan);
    border-left-color: var(--cyan);
  }

  .page-faq .faq-contact__item {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 720px) and (max-width: 959px) {
  .page-faq .faq-contact__item {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }

  .page-faq .qa__plus,
  .page-faq .qa__q,
  .page-faq .qa__no,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .faq-hero__figure {
    transform: none;
  }
}
<<<END>>>