.page-faq {
  --faq-rail-w: 264px;
  --faq-gap-w: 44px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
}

/* ---------- 顶部 ---------- */
.page-faq .faq-top {
  position: relative;
  overflow: hidden;
  padding: 22px 0 40px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-top::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(247, 244, 234, .03) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.page-faq .faq-top::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -80%;
  width: 65%;
  height: 340px;
  background: radial-gradient(circle, rgba(79, 240, 208, .16), rgba(79, 240, 208, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-top > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-top__grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
  align-items: end;
}

.page-faq .faq-top h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -.01em;
  margin: 10px 0 0;
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-top__stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-top__num {
  font-family: var(--font-numeric);
  font-size: clamp(48px, 11vw, 96px);
  font-weight: 700;
  line-height: .82;
  letter-spacing: -.05em;
  color: transparent;
  -webkit-text-stroke: 2px var(--orange);
}

@supports not (-webkit-text-stroke: 1px #000) {
  .page-faq .faq-top__num { color: var(--orange); }
}

.page-faq .faq-top__cap {
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .08em;
  line-height: 1.7;
  color: var(--mist);
  max-width: 15em;
}

@media (min-width: 860px) {
  .page-faq .faq-top__grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }
  .page-faq .faq-top__stat {
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    gap: 6px;
    padding-bottom: 8px;
  }
}

/* ---------- 主题标签 ---------- */
.page-faq .faq-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.page-faq .faq-topic {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 15px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--white);
  text-decoration: none;
  font-size: 14px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-topic__no,
.page-faq .faq-topic__count {
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
  transition: color .18s var(--ease);
}

.page-faq .faq-topic:hover,
.page-faq .faq-topic:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-faq .faq-topic:hover .faq-topic__no,
.page-faq .faq-topic:hover .faq-topic__count,
.page-faq .faq-topic:focus-visible .faq-topic__no,
.page-faq .faq-topic:focus-visible .faq-topic__count {
  color: var(--ink);
}

/* ---------- 分屏骨架 ---------- */
.page-faq .faq-shell {
  display: block;
  padding: 40px 0 72px;
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    display: grid;
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-gap-w);
    align-items: start;
    padding: 56px 0 96px;
  }
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-rail {
  margin-bottom: 30px;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-faq .faq-rail__title {
  display: none;
}

.page-faq .faq-rail__list {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  margin: 0;
  padding: 2px;
  list-style: none;
  overflow-x: auto;
}

.page-faq .faq-rail__list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 11px;
  font-size: 13px;
  color: var(--white);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: border-color .16s var(--ease), color .16s var(--ease), background .16s var(--ease);
}

.page-faq .faq-rail__list a span {
  font-family: var(--font-numeric);
  font-size: 11px;
  color: var(--cyan);
}

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

.page-faq .faq-rail__note {
  display: none;
}

@media (min-width: 960px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 28px;
    margin-bottom: 0;
    padding: 0;
    background: none;
    border: 0;
  }

  .page-faq .faq-rail__title {
    display: block;
    margin: 0 0 12px;
    padding-bottom: 9px;
    border-bottom: 1px solid var(--line);
    font-family: var(--font-numeric);
    font-size: 11px;
    letter-spacing: .14em;
    color: var(--mist);
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-rail__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-rail__list a {
    display: flex;
    gap: 10px;
    padding: 9px 12px;
    font-size: 14px;
    line-height: 1.5;
    white-space: normal;
    border: 0;
    border-left: 2px solid var(--line);
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    background: var(--panel);
    border-left-color: var(--cyan);
    color: var(--white);
  }

  .page-faq .faq-rail__note {
    display: block;
    margin: 18px 0 0;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    font-size: 13px;
    line-height: 1.75;
    color: var(--mist);
  }

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

/* ---------- 正文区 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 44px;
  min-width: 0;
}

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

.page-faq .faq-group__head {
  margin-bottom: 16px;
}

.page-faq .faq-group__no {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  border: 1px solid rgba(255, 122, 61, .42);
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.2;
  letter-spacing: -.005em;
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 切换专区 ---------- */
.page-faq .faq-group--switch {
  background: var(--panel);
  border-left: 4px solid var(--orange);
  padding: 26px 18px 6px;
}

@media (min-width: 760px) {
  .page-faq .faq-group--switch {
    padding: 32px 32px 8px;
  }
}

/* ---------- 图示 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 10px;
  padding: 10px;
  background: var(--ink);
  border: 1px solid var(--line);
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-numeric);
  font-size: 11px;
  line-height: 1.8;
  letter-spacing: .03em;
  color: var(--mist);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
  transition: background .16s var(--ease);
}

.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa:hover {
  background: rgba(79, 240, 208, .035);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 32px 16px 2px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

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

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 14px;
  font-family: var(--font-numeric);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "\2212";
}

.page-faq .qa__no {
  flex: 0 0 auto;
  min-width: 22px;
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  transition: color .16s var(--ease);
}

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

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

.page-faq .qa__a {
  padding: 0 32px 18px 36px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .qa__a p {
  margin: 0 0 8px;
  overflow-wrap: break-word;
}

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

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

.page-faq .qa[open] .qa__a {
  animation: faq-in .3s var(--ease);
}

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

/* ---------- 支持区：纸面 ---------- */
.page-faq .faq-group--paper {
  background: var(--paper);
  color: var(--graphite);
  padding: 26px 18px 8px;
  box-shadow: inset 0 0 0 1px rgba(27, 35, 32, .16);
}

.page-faq .faq-group--paper .faq-group__no {
  border-color: rgba(27, 35, 32, .4);
  color: var(--graphite);
}

.page-faq .faq-group--paper .faq-group__title {
  color: var(--graphite);
}

.page-faq .faq-group--paper .faq-group__desc {
  color: var(--graphite);
  opacity: .74;
}

.page-faq .faq-group--paper .faq-figure {
  background: rgba(247, 244, 234, .55);
  border-color: rgba(27, 35, 32, .2);
}

.page-faq .faq-group--paper .faq-figure figcaption {
  color: var(--graphite);
  opacity: .72;
}

.page-faq .faq-group--paper .qa {
  border-top-color: rgba(27, 35, 32, .2);
}

.page-faq .faq-group--paper .qa:last-of-type {
  border-bottom-color: rgba(27, 35, 32, .2);
}

.page-faq .faq-group--paper .qa:hover {
  background: rgba(27, 35, 32, .05);
}

.page-faq .faq-group--paper .qa__q::after,
.page-faq .faq-group--paper .qa[open] .qa__no {
  color: var(--graphite);
}

.page-faq .faq-group--paper .qa__no {
  color: var(--graphite);
  opacity: .55;
}

.page-faq .faq-group--paper .qa__a {
  color: var(--graphite);
  opacity: .84;
}

.page-faq .faq-group--paper .qa__a a {
  color: var(--graphite);
}

@media (min-width: 760px) {
  .page-faq .faq-group--paper {
    padding: 32px 32px 10px;
  }
}

/* ---------- 延伸阅读 ---------- */
.page-faq .faq-more {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-more h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .01em;
}

.page-faq .faq-more ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-more li a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--white);
  text-decoration: none;
  transition: border-color .16s var(--ease), background .16s var(--ease);
}

.page-faq .faq-more li a strong {
  font-size: 15px;
  font-weight: 600;
}

.page-faq .faq-more li a span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-more li a:hover,
.page-faq .faq-more li a:focus-visible {
  border-color: var(--cyan);
  background: rgba(79, 240, 208, .06);
}

@media (min-width: 760px) {
  .page-faq .faq-more ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa__a {
    animation: none;
  }
  .page-faq .faq-topic,
  .page-faq .qa,
  .page-faq .qa__no,
  .page-faq .faq-more li a {
    transition: none;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-faq {
    background: #fff;
    color: #000;
  }
  .page-faq .faq-topics,
  .page-faq .faq-rail,
  .page-faq .qa__q::after,
  .page-faq .faq-top::after {
    display: none;
  }
  .page-faq .qa__a,
  .page-faq .faq-lede,
  .page-faq .faq-group__desc {
    color: #000;
  }
}
<<<END>>>