.page-faq {
  --faq-accent: var(--cyan);
  --faq-side: 288px;
  --faq-gap: clamp(28px, 4vw, 56px);
  --faq-radius: 0;
}

.page-faq .breadcrumb {
  padding-block: 18px 0;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(32px, 5vw, 64px) clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 50% -25%, rgba(45, 226, 230, 0.16), transparent 62%),
    radial-gradient(70% 60% at 88% 4%, rgba(255, 159, 28, 0.10), transparent 70%),
    radial-gradient(60% 60% at 6% 30%, rgba(255, 61, 127, 0.08), transparent 72%);
}

.page-faq .faq-hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.page-faq .faq-hero .eyebrow {
  justify-content: center;
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(30px, 5.6vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 46em;
  color: var(--fog-dim);
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.8;
}

/* 顶部命令栏 */
.page-faq .faq-cmd {
  width: 100%;
  max-width: 820px;
  margin-top: 10px;
  padding: clamp(14px, 2vw, 20px);
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-700), var(--ink-800));
}

.page-faq .faq-cmd__field {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-cmd__field:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan);
}

.page-faq .faq-cmd__prompt {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
}

.page-faq .faq-cmd__input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--fog);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq-cmd__input::placeholder {
  color: var(--slate);
}

.page-faq .faq-cmd__meta {
  margin: 0;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.7;
}

.page-faq .faq-cmd__meta .numeric {
  color: var(--fog);
  font-size: 13px;
}

.page-faq .faq-cmd__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.page-faq .faq-cmd__actions .btn {
  flex: 1 1 180px;
  justify-content: center;
  text-align: center;
}

/* 主栅格 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-block: clamp(32px, 5vw, 64px) var(--rhythm);
}

/* 左侧索引 */
.page-faq .faq-index {
  align-self: start;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-index__media {
  margin: 0;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(45, 226, 230, 0.14), rgba(13, 33, 56, 0.9) 60%);
  overflow: hidden;
}

.page-faq .faq-index__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-faq .faq-index__title {
  margin: 0;
  padding: 16px 18px 10px;
  color: var(--fog);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0 18px;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--fog-dim);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

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

.page-faq .faq-index__no {
  color: var(--slate);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-faq .faq-index__note {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px solid var(--line);
  color: var(--slate);
  font-size: 12px;
  line-height: 1.75;
}

/* 问答分组 */
.page-faq .faq-content {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vw, 64px);
  min-width: 0;
}

.page-faq .faq-group {
  --faq-accent: var(--cyan);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-content .faq-group:nth-of-type(3n + 2) {
  --faq-accent: var(--gold);
}

.page-faq .faq-content .faq-group:nth-of-type(3n) {
  --faq-accent: var(--magenta);
}

.page-faq .faq-group__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .faq-group .eyebrow {
  color: var(--faq-accent);
}

.page-faq .faq-group__title {
  margin: 0;
  color: var(--fog);
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 42em;
  color: var(--fog-dim);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-group__media {
  margin: 18px 0 22px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-group__media .media__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* 手风琴 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-q {
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-q:hover,
.page-faq .faq-q[open] {
  border-color: var(--faq-accent);
}

.page-faq .faq-q__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--fog);
}

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

.page-faq .faq-q__summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-q__no {
  flex: none;
  color: var(--faq-accent);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-faq .faq-q__text {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  line-height: 1.6;
}

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

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--faq-accent);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .faq-q__sign::before {
  top: 50%;
  left: 0;
  width: 12px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-q__sign::after {
  left: 50%;
  top: 0;
  width: 1px;
  height: 12px;
  transform: translateX(-50%);
}

.page-faq .faq-q[open] .faq-q__sign::after {
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 16px 16px 40px;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 44em;
  color: var(--fog-dim);
  font-size: 14px;
  line-height: 1.85;
}

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

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

/* 收尾导航 */
.page-faq .faq-next {
  padding-block: var(--rhythm);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 33, 56, 0.55), rgba(7, 21, 35, 0));
}

.page-faq .faq-next__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.page-faq .faq-next__title {
  margin: 0;
  color: var(--fog);
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.page-faq .faq-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-next__card {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-next__idx {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-faq .faq-next__label {
  color: var(--fog);
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.01em;
}

.page-faq .faq-next__desc {
  color: var(--slate);
  font-size: 13px;
  line-height: 1.7;
}

@media (min-width: 720px) {
  .page-faq .faq-cmd__actions {
    justify-content: flex-start;
  }

  .page-faq .faq-cmd__actions .btn {
    flex: 0 0 auto;
  }

  .page-faq .faq-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-a {
    padding: 0 20px 18px 52px;
  }
}

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

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-hero__inner {
    gap: 20px;
  }
}
<<<END>>>