.page-faq {
  --faq-line: rgba(242, 239, 230, .15);
  --faq-line-soft: rgba(242, 239, 230, .08);
  --faq-panel: rgba(18, 59, 49, .55);
  --faq-ink: #0B2A22;
  --faq-ink-soft: #2b3a35;
  padding-bottom: clamp(40px, 6vw, 84px);
  overflow-x: clip;
  color: var(--chalk);
  background:
    radial-gradient(900px 480px at 88% -8%, rgba(24, 224, 208, .12), transparent 62%),
    radial-gradient(720px 420px at 2% 28%, rgba(255, 106, 42, .06), transparent 66%),
    var(--ink-green);
}

.page-faq :focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding-top: clamp(14px, 2vw, 22px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-faq .breadcrumbs a {
  color: var(--stone);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  color: var(--volt);
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(126, 140, 134, .55);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: clamp(18px, 3vw, 34px) 0 clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  align-items: center;
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--volt);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.2vw, 58px);
  line-height: 1.06;
  letter-spacing: -.02em;
  max-width: 18em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 44em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.72;
  color: rgba(242, 239, 230, .76);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(12px, 2.4vw, 28px);
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: rgba(242, 239, 230, .6);
}

.page-faq .faq-hero__meta span {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--chalk);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__visual {
  position: relative;
  margin: 0;
}

.page-faq .faq-hero__visual::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 58px;
  height: 4px;
  background: var(--track);
}

.page-faq .faq-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  background: var(--carbon);
}

.page-faq .faq-hero__visual figcaption {
  padding-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--stone);
}

/* 筛选 */
.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--faq-line-soft);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-filters__label {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-faq .chip {
  appearance: none;
  border: 1px solid var(--faq-line);
  background: transparent;
  color: rgba(242, 239, 230, .78);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.2;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .chip:hover {
  border-color: rgba(24, 224, 208, .5);
  color: var(--chalk);
}

.page-faq .chip[aria-pressed="true"],
.page-faq .chip.is-active {
  background: var(--volt);
  border-color: var(--volt);
  color: var(--carbon);
  font-weight: 600;
}

/* 主体两栏 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  padding-top: clamp(20px, 3vw, 34px);
}

.page-faq .faq-tree {
  border: 1px solid var(--faq-line);
  background: var(--faq-panel);
  padding: 14px 14px 12px;
}

.page-faq .faq-tree__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-tree__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
}

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

.page-faq .faq-tree__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  color: rgba(242, 239, 230, .8);
  border-left: 2px solid transparent;
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-tree__link:hover {
  color: var(--chalk);
  background: rgba(24, 224, 208, .08);
  border-left-color: var(--volt);
}

.page-faq .faq-tree__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--stone);
  box-shadow: 0 0 0 3px rgba(126, 140, 134, .16);
}

.page-faq .faq-tree__link:hover .faq-tree__dot {
  background: var(--volt);
  box-shadow: 0 0 0 3px rgba(24, 224, 208, .2);
}

/* 章节 */
.page-faq .faq-sec {
  padding-top: clamp(28px, 4vw, 46px);
}

.page-faq .faq-sec:first-child {
  padding-top: 0;
}

.page-faq .faq-sec__head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-sec__no {
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--volt);
}

.page-faq .faq-sec h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-faq .faq-sec__sub {
  margin: 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.66;
  color: rgba(242, 239, 230, .62);
}

/* 步骤树 */
.page-faq .steps {
  display: grid;
  gap: 2px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  position: relative;
  padding: 14px 16px 14px 54px;
  border-left: 1px solid var(--faq-line);
  background: linear-gradient(90deg, rgba(18, 59, 49, .62), rgba(18, 59, 49, 0));
}

.page-faq .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 40px;
  bottom: -2px;
  width: 1px;
  background: rgba(24, 224, 208, .26);
}

.page-faq .step__node {
  position: absolute;
  left: 14px;
  top: 14px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--volt);
  color: var(--carbon);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.page-faq .step__title {
  margin: 0 0 6px;
  font-size: 15.5px;
  line-height: 1.45;
  font-weight: 600;
  color: var(--chalk);
}

.page-faq .step p {
  margin: 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 239, 230, .7);
}

/* 编号卡 */
.page-faq .faq-code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 4px 0 20px;
  padding: 16px 18px;
  border: 1px dashed rgba(24, 224, 208, .36);
  background: rgba(6, 42, 35, .5);
}

.page-faq .faq-code__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-code__value {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.6vw, 24px);
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
  color: var(--volt);
  word-break: break-all;
}

.page-faq .faq-code__hint {
  margin: 0;
  max-width: 44em;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(242, 239, 230, .6);
}

.page-faq .faq-copy {
  appearance: none;
  border: 1px solid var(--track);
  background: var(--track);
  color: #120b06;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 2px;
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-copy:hover {
  background: transparent;
  color: var(--track);
}

.page-faq .faq-copy.is-copied {
  background: var(--volt);
  border-color: var(--volt);
  color: var(--carbon);
}

/* 折叠问答 */
.page-faq .qa {
  margin-bottom: 8px;
  border: 1px solid var(--faq-line-soft);
  border-left: 2px solid rgba(24, 224, 208, .28);
  background: rgba(11, 15, 14, .34);
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--volt);
  background: rgba(18, 59, 49, .5);
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--chalk);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--stone);
  transition: background .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .qa[open] .qa__dot {
  background: var(--track);
  box-shadow: 0 0 0 4px rgba(255, 106, 42, .16);
}

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

.page-faq .qa__sign {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 12px;
  height: 1.5px;
  background: var(--volt);
  transition: transform .24s var(--ease);
}

.page-faq .qa__sign::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa__sign::after {
  transform: rotate(0deg);
}

.page-faq .qa__a {
  padding: 0 16px 16px 36px;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(242, 239, 230, .78);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .qa__a a {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid rgba(24, 224, 208, .4);
}

.page-faq .qa__a a:hover {
  border-bottom-color: var(--volt);
}

/* 资料库配图 */
.page-faq .faq-figure {
  margin: 18px 0 0;
  border: 1px solid var(--faq-line);
  background: var(--carbon);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--stone);
}

/* 客服提示条 */
.page-faq .faq-help {
  position: relative;
  margin-top: clamp(34px, 5vw, 62px);
  padding: clamp(22px, 3.6vw, 40px);
  background: var(--chalk);
  color: var(--faq-ink);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 64px;
  height: 4px;
  background: var(--track);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-help h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--faq-ink);
}

.page-faq .faq-help p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-ink-soft);
}

.page-faq .faq-help__list {
  display: grid;
  gap: 8px;
  margin: 0 0 14px;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--faq-ink-soft);
}

.page-faq .faq-help__more a {
  color: var(--faq-ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--track);
}

.page-faq .faq-help__more a:hover {
  border-bottom-color: var(--faq-ink);
}

.page-faq .faq-contact {
  display: grid;
  gap: 2px;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 2px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(11, 42, 34, .16);
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #5b6b65;
}

.page-faq .faq-contact__val {
  font-size: 15px;
  line-height: 1.5;
  color: var(--faq-ink);
  word-break: break-word;
}

.page-faq .faq-contact__val a {
  color: var(--faq-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 42, 34, .32);
}

.page-faq .faq-contact__val a:hover {
  border-bottom-color: var(--track);
}

.page-faq .faq-help__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.68;
  color: #55655f;
}

@media (min-width: 820px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.05fr .95fr;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: 1.1fr .9fr;
  }
}

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

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

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

  .page-faq .faq-tree__list li {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .chip,
  .page-faq .qa,
  .page-faq .qa__dot,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-copy,
  .page-faq .faq-tree__link {
    transition: none;
  }
}

以上为完整输出。