.page-faq {
  --faq-radius: 16px;
  --faq-line: rgba(63, 242, 210, .16);
  --faq-gap: clamp(18px, 3vw, 32px);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 2.6vw, 30px) clamp(30px, 4.6vw, 56px);
  background:
    radial-gradient(115% 85% at 6% -18%, rgba(63, 242, 210, .17), transparent 56%),
    radial-gradient(75% 65% at 104% 112%, rgba(255, 181, 71, .13), transparent 60%),
    linear-gradient(168deg, var(--pitch) 0%, var(--ink) 74%);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero__top {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(16px, 2.6vw, 28px);
}

.page-faq .faq-hero__lead h1 {
  margin: .3em 0 .55em;
  max-width: 15em;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .03em;
  color: var(--mist);
  text-wrap: balance;
}

.page-faq .faq-hero__lead .lead {
  margin: 0;
  max-width: 46em;
  color: var(--steel);
  font-size: clamp(1rem, 1.5vw, 1.075rem);
  line-height: 1.85;
}

.page-faq .faq-hero__lead .lead .link {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 242, 210, .4);
  word-break: break-all;
}

.page-faq .faq-hero__lead .lead .link:hover {
  border-bottom-color: var(--neon);
}

/* 热门问题面板 */
.page-faq .faq-quick {
  position: relative;
  padding: clamp(16px, 2.2vw, 22px);
  background: linear-gradient(150deg, rgba(17, 66, 54, .94), rgba(10, 43, 35, .94));
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
}

.page-faq .faq-quick::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3.6rem;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--amber));
  border-radius: 0 0 3px 0;
}

.page-faq .faq-quick__title {
  margin: 0 0 .9em;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--neon);
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-quick__list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: .58em .25em;
  color: var(--mist);
  font-size: .93rem;
  line-height: 1.55;
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 242, 210, .1);
  transition: color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-quick__list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-quick__list a:hover {
  color: var(--neon);
  transform: translateX(3px);
}

.page-faq .faq-quick__list .mono {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--amber);
}

/* 关键数字条 */
.page-faq .faq-stats {
  list-style: none;
  margin: clamp(22px, 3.4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
}

.page-faq .faq-stats li {
  display: grid;
  gap: 5px;
  align-content: center;
  padding: clamp(13px, 2vw, 20px);
  background: rgba(4, 24, 20, .74);
}

.page-faq .faq-stats__n {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--neon);
}

.page-faq .faq-stats__n--sm {
  font-size: clamp(.92rem, 1.8vw, 1.1rem);
  color: var(--amber);
}

.page-faq .faq-stats__l {
  font-size: .82rem;
  letter-spacing: .02em;
  color: var(--steel);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
  padding-block: clamp(30px, 5vw, 66px);
}

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

.page-faq .faq-toc__title {
  margin: 0 0 .75em;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 2px .4rem 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-toc__list a {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: .5em .9em;
  white-space: nowrap;
  font-size: .85rem;
  color: var(--steel);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-faq .faq-toc__list .mono {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--teal);
}

.page-faq .faq-toc__list a:hover {
  color: var(--mist);
  border-color: var(--neon);
  background: rgba(63, 242, 210, .08);
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(30px, 4.4vw, 56px);
  min-width: 0;
}

.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: 90px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 7px;
  padding-bottom: clamp(12px, 1.8vw, 18px);
  margin-bottom: clamp(6px, 1vw, 12px);
  border-bottom: 2px solid rgba(63, 242, 210, .22);
}

.page-faq .faq-group__letter {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.18rem, 2.6vw, 1.62rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 44em;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--hair);
  scroll-margin-top: 96px;
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(8px, 1.4vw, 16px);
  align-items: start;
  padding: clamp(13px, 1.9vw, 18px) 2px;
  cursor: pointer;
  list-style: none;
  transition: background-color .18s var(--ease);
}

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

.page-faq .faq-item summary::marker {
  content: none;
}

.page-faq .faq-item summary:hover {
  background: linear-gradient(90deg, rgba(63, 242, 210, .07), transparent 72%);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

.page-faq .faq-item__no {
  padding-top: .3em;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--teal);
  transition: color .18s var(--ease);
}

.page-faq .faq-item__q {
  font-family: var(--font-head);
  font-size: clamp(.98rem, 1.9vw, 1.05rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-item__chev {
  width: 9px;
  height: 9px;
  margin-top: .6em;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(45deg);
  transition: transform .22s var(--ease);
}

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

.page-faq .faq-item[open] .faq-item__chev {
  transform: rotate(225deg);
  margin-top: .85em;
}

.page-faq .faq-item__a {
  display: grid;
  gap: 10px;
  padding-bottom: clamp(16px, 2.2vw, 22px);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 52em;
  padding-left: clamp(14px, 2vw, 20px);
  border-left: 2px solid rgba(63, 242, 210, .3);
  font-size: .94rem;
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .faq-item__link {
  justify-self: start;
  margin-left: clamp(14px, 2vw, 20px);
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  color: rgba(168, 198, 189, .8);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  border-radius: 4px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-item__link:hover {
  color: var(--neon);
  border-color: var(--neon);
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  display: grid;
  gap: 10px;
  margin: clamp(20px, 3vw, 32px) 0 0;
}

.page-faq .faq-figure__frame {
  background: linear-gradient(140deg, var(--turf), var(--pitch));
  clip-path: polygon(0 0, 100% 0, 100% 100%, 4% 100%);
}

.page-faq .faq-figure__frame img,
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding-left: 4px;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255, 181, 71, .22);
  border-bottom: 1px solid var(--hair);
  background:
    radial-gradient(85% 115% at 6% -12%, rgba(110, 31, 58, .78), transparent 60%),
    radial-gradient(70% 90% at 98% 112%, rgba(255, 181, 71, .14), transparent 58%),
    linear-gradient(158deg, var(--pitch) 0%, var(--ink) 82%);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
  padding-block: clamp(34px, 5vw, 68px);
}

.page-faq .faq-help__letter {
  display: inline-block;
  margin-bottom: .9em;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-faq .faq-help__text h2 {
  margin: 0 0 .6em;
  max-width: 18em;
  font-family: var(--font-head);
  font-size: clamp(1.32rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-faq .faq-help__text > p {
  margin: 0;
  max-width: 40em;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--steel);
}

.page-faq .faq-help__meta {
  display: grid;
  gap: 1px;
  margin: clamp(18px, 2.4vw, 26px) 0;
  background: rgba(234, 247, 242, .1);
  border: 1px solid rgba(234, 247, 242, .12);
  border-radius: var(--faq-radius);
  overflow: hidden;
}

.page-faq .faq-help__meta > div {
  display: grid;
  gap: 5px;
  padding: clamp(12px, 1.8vw, 16px);
  background: rgba(4, 24, 20, .58);
}

.page-faq .faq-help__meta dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-faq .faq-help__meta dd {
  margin: 0;
  font-size: .92rem;
  line-height: 1.65;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-help__meta dd.mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-faq .faq-help__meta dd a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 242, 210, .35);
}

.page-faq .faq-help__meta dd a:hover {
  border-bottom-color: var(--neon);
}

.page-faq .faq-help__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-help__figure {
  display: grid;
  gap: 10px;
  margin: 0;
}

.page-faq .faq-help__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(234, 247, 242, .14);
  border-radius: var(--faq-radius);
}

.page-faq .faq-help__figure figcaption {
  font-size: .82rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-help__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__top {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, .82fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(210px, 236px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-toc__list {
    display: grid;
    gap: 2px;
    padding: 0;
    overflow: visible;
    border-left: 1px solid var(--faq-line);
  }

  .page-faq .faq-toc__list a {
    justify-content: flex-start;
    white-space: normal;
    padding: .62em .9em;
    margin-left: -1px;
    font-size: .875rem;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .page-faq .faq-toc__list a:hover {
    border-left-color: var(--neon);
    background: linear-gradient(90deg, rgba(63, 242, 210, .1), transparent 90%);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__list a,
  .page-faq .faq-toc__list a,
  .page-faq .faq-item summary,
  .page-faq .faq-item__chev,
  .page-faq .faq-item__no,
  .page-faq .faq-item__link {
    transition: none;
  }

  .page-faq .faq-quick__list a:hover {
    transform: none;
  }
}
<<<END>>>