.page-faq {
  --faq-sticky: calc(var(--header-h) + 28px);
  --faq-a-text: rgba(244, 247, 239, .82);
  background: var(--bg);
  color: var(--white);
  padding-top: var(--header-h);
  padding-bottom: 72px;
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .container {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* 面包屑 */
.page-faq .faq-crumbs {
  padding-top: 20px;
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-crumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}

.page-faq .faq-crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .faq-crumbs [aria-current="page"] {
  color: var(--lime-soft);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 30px 0 46px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-kicker {
  margin: 0 0 18px;
  font-size: 11.5px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-hero h1 {
  margin: 0 0 22px;
  font-size: clamp(2.1rem, 7.2vw, 4.2rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: .02em;
  color: var(--white);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-a-text);
}

.page-faq .faq-hero-label {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-faq .faq-hot {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 10px;
  padding: 16px 16px;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--white);
  text-decoration: none;
  transition: border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}

.page-faq .faq-hot + .faq-hot {
  margin-top: 8px;
}

.page-faq .faq-hot-num {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-faq .faq-hot-text {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-hot-arrow {
  font-family: var(--font-mono);
  color: var(--mist);
  transition: transform .25s var(--ease), color .25s var(--ease);
}

.page-faq .faq-hot:hover,
.page-faq .faq-hot:focus-visible {
  border-color: var(--lime);
  transform: translateX(3px);
}

.page-faq .faq-hot:hover .faq-hot-arrow,
.page-faq .faq-hot:focus-visible .faq-hot-arrow {
  color: var(--lime);
  transform: translateX(4px);
}

/* 主体双栏 */
.page-faq .faq-body {
  display: grid;
  gap: 40px;
  padding-top: 48px;
}

.page-faq .faq-rail {
  align-self: start;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--mist);
}

.page-faq .faq-index {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line);
}

.page-faq .faq-index a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: baseline;
  gap: 8px;
  padding: 13px 4px 13px 0;
  border-bottom: 1px solid var(--line);
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-faq .faq-index a .mono {
  font-size: 12px;
  color: var(--line);
  transition: color .2s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--lime);
  padding-left: 6px;
}

.page-faq .faq-index a:hover .mono,
.page-faq .faq-index a:focus-visible .mono {
  color: var(--lime);
}

/* 三步缩略图 */
.page-faq .faq-mini {
  margin-top: 26px;
  padding: 18px 16px 16px;
  border: 2px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-mini-title {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--lime);
}

.page-faq .faq-mini-svg {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
  margin: 12px auto 6px;
}

.page-faq .faq-mini-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* 主题章节 */
.page-faq .faq-topic {
  padding-bottom: 6px;
  scroll-margin-top: var(--faq-sticky);
}

.page-faq .faq-topic + .faq-topic {
  margin-top: 46px;
  padding-top: 40px;
  border-top: 2px solid var(--line);
}

.page-faq .faq-topic-head {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 10px;
  margin-bottom: 20px;
}

.page-faq .faq-topic-num {
  padding-top: 8px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--lime);
}

.page-faq .faq-topic-head h2 {
  margin: 0;
  font-size: clamp(1.35rem, 4.6vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--white);
}

.page-faq .faq-topic-note {
  grid-column: 2;
  margin: 8px 0 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 问答项 */
.page-faq .faq-q {
  border: 2px solid var(--line);
  background: var(--bg);
  scroll-margin-top: calc(var(--faq-sticky) + 12px);
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-q + .faq-q {
  margin-top: 10px;
}

.page-faq .faq-q summary {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) 16px;
  align-items: start;
  gap: 10px;
  padding: 17px 16px;
  cursor: pointer;
  list-style: none;
  transition: background .2s var(--ease);
}

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

.page-faq .faq-q summary:hover {
  background: var(--panel);
}

.page-faq .faq-q summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -4px;
}

.page-faq .faq-q-mark {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-faq .faq-q-text {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--white);
}

.page-faq .faq-q-plus {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
}

.page-faq .faq-q-plus::before,
.page-faq .faq-q-plus::after {
  content: "";
  position: absolute;
  background: var(--mist);
  transition: transform .25s var(--ease), opacity .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-q-plus::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-q-plus::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-q[open] {
  background: var(--panel);
  border-color: var(--lime);
}

.page-faq .faq-q[open] summary {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q[open] .faq-q-plus::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-q[open] .faq-q-plus::before {
  background: var(--lime);
}

.page-faq .faq-a {
  padding: 18px 16px 20px;
}

.page-faq .faq-a p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-a-text);
}

.page-faq .faq-go {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--lime);
  text-decoration: none;
  transition: border-color .2s var(--ease);
}

.page-faq .faq-go span {
  transition: transform .2s var(--ease);
}

.page-faq .faq-go:hover,
.page-faq .faq-go:focus-visible {
  border-bottom-color: var(--lime);
}

.page-faq .faq-go:hover span {
  transform: translateX(4px);
}

/* 图文分栏 */
.page-faq .faq-split {
  display: grid;
  gap: 22px;
}

.page-faq .faq-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-figure--wide {
  margin-top: 28px;
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 12px;
  border-top: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  line-height: 1.6;
  color: var(--mist);
}

/* 人工支持 */
.page-faq .faq-support {
  display: grid;
  gap: 22px;
  margin-top: 52px;
  padding: 26px 22px;
  border: 2px solid var(--lime);
  background: var(--panel);
  scroll-margin-top: var(--faq-sticky);
}

.page-faq .faq-support-tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 9px;
  border: 1px solid var(--mist);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .faq-support h2 {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 4.2vw, 1.75rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
}

.page-faq .faq-support p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-a-text);
}

.page-faq .faq-support-lines {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-support-line {
  display: grid;
  gap: 4px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-support-label {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-faq .faq-support-line a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-support-line a:hover,
.page-faq .faq-support-line a:focus-visible {
  border-bottom-color: var(--lime);
}

.page-faq .faq-support-line span:not(.faq-support-label) {
  color: var(--white);
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 40px 0 58px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: end;
    gap: 52px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr);
    align-items: start;
    gap: 26px;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 260px);
    align-items: start;
    padding: 30px 28px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 64px;
    padding-top: 62px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-sticky);
  }

  .page-faq .faq-q summary {
    padding: 19px 20px;
  }

  .page-faq .faq-a {
    padding: 20px 20px 22px 52px;
  }

  .page-faq .faq-topic-head {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 4px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot,
  .page-faq .faq-hot-arrow,
  .page-faq .faq-index a,
  .page-faq .faq-go span,
  .page-faq .faq-q-plus::before,
  .page-faq .faq-q-plus::after {
    transition: none;
  }

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