.page-faq {
  --faq-rail: 260px;
  padding-bottom: clamp(48px, 9vw, 96px);
  background:
    radial-gradient(860px 400px at 80% -8%, rgba(47, 227, 198, .10), transparent 62%),
    radial-gradient(680px 320px at 4% 6%, rgba(242, 179, 61, .06), transparent 60%);
}

.page-faq img {
  display: block;
  max-width: 100%;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 22px;
  padding: clamp(18px, 4vw, 40px) 0 clamp(20px, 3vw, 32px);
}

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

.page-faq .faq-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--muted);
  margin-bottom: 18px;
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb a:hover {
  color: var(--cyan);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-faq .faq-hero .eyebrow__num {
  display: inline-block;
  padding: 2px 6px;
  margin-right: 8px;
  border: 1px solid var(--line);
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 6.4vw, 64px);
  line-height: 1.14;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--text);
  max-width: 16em;
}

.page-faq .faq-hero__sub {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 24px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 7px;
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lab {
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-banner {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-800);
}

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

.page-faq .faq-banner figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
  background: rgba(6, 17, 14, .78);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

/* ---------- 主题筛选条 ---------- */
.page-faq .faq-filterbar {
  padding: 14px 0 16px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-filterbar__row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-faq .faq-filterbar__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .filterbar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
}

.page-faq .faq-chip {
  flex: none;
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-faq .faq-chip:hover {
  color: var(--text);
  border-color: rgba(47, 227, 198, .55);
}

.page-faq .faq-chip[aria-pressed="true"],
.page-faq .faq-chip.is-active {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-filterbar__status {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  margin-top: clamp(24px, 4vw, 40px);
}

/* 左侧刻度索引 */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 8px 0 0;
  list-style: none;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  white-space: nowrap;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: .06em;
}

.page-faq .faq-tall {
  display: none;
  margin: 22px 0 0;
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-tall img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-faq .faq-tall figcaption {
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .06em;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* 右侧问答区 */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-section {
  padding-top: 6px;
  margin-bottom: clamp(30px, 5vw, 52px);
  scroll-margin-top: 92px;
}

.page-faq .faq-section:not(:has(details:not([hidden]))) {
  display: none;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 28px);
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--text);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: 3px;
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(47, 227, 198, .45);
}

.page-faq .faq-item[open] {
  background: var(--ink-700);
  border-color: rgba(47, 227, 198, .55);
}

.page-faq .faq-item[hidden] {
  display: none;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text);
  transition: color 160ms var(--ease);
}

.page-faq .faq-q::-webkit-details-marker,
.page-faq .faq-q::marker {
  display: none;
  content: "";
}

.page-faq .faq-item[open] > .faq-q {
  color: var(--cyan-soft);
}

.page-faq .faq-q__num {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--amber);
}

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

.page-faq .faq-q__chev {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-item[open] .faq-q__chev {
  transform: rotate(-135deg);
  border-color: var(--cyan);
}

.page-faq .faq-a {
  padding: 4px 16px 18px 40px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

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

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

.page-faq .faq-a strong {
  color: var(--text);
}

.page-faq .faq-a a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

/* 步骤 */
.page-faq .steps {
  margin: 14px 0 12px;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 10px 0;
  border-top: 1px dashed rgba(28, 74, 60, .95);
}

.page-faq .step:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .step__box {
  flex: none;
  width: 15px;
  height: 15px;
  margin: 5px 0 0;
  accent-color: var(--cyan);
  cursor: pointer;
}

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

.page-faq .step__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .step__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
  transition: color 160ms var(--ease);
}

.page-faq .step__box:checked ~ .step__body .step__text {
  color: var(--muted);
}

.page-faq .step__box:focus-visible ~ .step__body .step__text {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 伤停角标样张 */
.page-faq .faq-statuses {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
  padding: 12px;
  background: rgba(6, 17, 14, .6);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: 2px;
}

.page-faq .status {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .03em;
  border: 1px solid currentColor;
  border-radius: 2px;
  background: transparent;
}

.page-faq .status[data-state="out"] {
  color: var(--alert);
}

.page-faq .status[data-state="doubt"] {
  color: var(--amber);
}

.page-faq .status[data-state="return"] {
  color: var(--amber-soft);
}

.page-faq .status[data-state="fit"] {
  color: var(--cyan-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: end;
    gap: 32px;
  }

  .page-faq .faq-banner img {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-a {
    padding-left: 44px;
    padding-right: 22px;
  }

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

@media (min-width: 980px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.9fr);
    gap: 44px;
  }

  .page-faq .faq-hero h1 {
    max-width: 13em;
  }

  .page-faq .faq-banner img {
    aspect-ratio: 3 / 2;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index__list {
    display: block;
    padding: 0;
    overflow: visible;
    border-top: 0;
    border-left: 1px solid var(--line);
    margin-left: 5px;
  }

  .page-faq .faq-index__item {
    margin: 0;
  }

  .page-faq .faq-index__link {
    display: flex;
    margin-left: -1px;
    padding: 11px 0 11px 16px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    white-space: normal;
    font-size: 14.5px;
    line-height: 1.5;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--cyan);
    border-bottom-color: transparent;
    background: linear-gradient(90deg, rgba(47, 227, 198, .08), transparent 70%);
  }

  .page-faq .faq-tall {
    display: block;
  }
}

@media (min-width: 1200px) {
  .page-faq {
    --faq-rail: 288px;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(44px, 4.6vw, 64px);
  }

  .page-faq .faq-q {
    font-size: 16.5px;
  }

  .page-faq .faq-a {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__chev,
  .page-faq .faq-item,
  .page-faq .faq-chip,
  .page-faq .faq-index__link,
  .page-faq .step__text {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>