.page-faq {
  --faq-rule: rgba(140, 167, 155, .18);
  --faq-rule-strong: rgba(140, 167, 155, .32);
  --faq-body: rgba(233, 243, 238, .8);
  --faq-gap: clamp(24px, 4vw, 56px);
  color: var(--fog);
  background: var(--ink);
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: 20px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--moss);
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4vw, 44px) 0 clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 100% at 92% -10%, rgba(52, 239, 198, .13), transparent 58%),
    radial-gradient(80% 70% at -10% 110%, rgba(240, 179, 60, .09), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 8vw, 4.6rem);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--fog);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 48ch;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: clamp(16px, 2vw, 22px) 0 0;
  border-top: 1px solid var(--faq-rule);
  list-style: none;
}

.page-faq .faq-hero__stat {
  display: grid;
  gap: 6px;
}

.page-faq .faq-hero__stat b {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.15rem, 3vw, 1.65rem);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--amber);
}

.page-faq .faq-hero__stat span {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: .08em;
  color: var(--moss);
}

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

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

.page-faq .faq-hero__figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 14px 10px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--fog);
  background: linear-gradient(to top, rgba(5, 15, 12, .92), rgba(5, 15, 12, 0));
}

@media (min-width: 880px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 360px);
    gap: clamp(32px, 5vw, 72px);
  }
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding: clamp(40px, 6vw, 88px) 0 clamp(16px, 3vw, 32px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-rail {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 48, 42, .6), rgba(20, 24, 26, .55));
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-faq .faq-rail__list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--moss);
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
  transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-rail__link:hover {
  color: var(--fog);
  background: rgba(52, 239, 198, .07);
}

.page-faq .faq-rail__link.is-current {
  color: var(--cyan);
  border-color: rgba(52, 239, 198, .38);
  background: rgba(52, 239, 198, .08);
}

.page-faq .faq-rail__num {
  flex: none;
  min-width: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
  opacity: .75;
}

.page-faq .faq-rail__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-rule);
  font-size: 12px;
  line-height: 1.7;
  color: var(--moss);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
  padding-bottom: clamp(30px, 4vw, 52px);
}

.page-faq .faq-group + .faq-group {
  padding-top: clamp(30px, 4vw, 52px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 8px;
}

.page-faq .faq-group__index {
  flex: none;
  padding: 3px 8px;
  border: 1px solid rgba(240, 179, 60, .38);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.2vw, 2rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-group__desc {
  margin: 0 0 12px;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  position: relative;
  padding-left: 16px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  opacity: 0;
  transition: transform .32s var(--ease), opacity .32s var(--ease);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
  opacity: 1;
}

.page-faq .faq-item__q {
  position: relative;
  display: block;
  list-style: none;
  padding: 18px 40px 18px 0;
  min-height: 44px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--fog);
  transition: color .2s var(--ease);
}

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

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 16px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid rgba(52, 239, 198, .32);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--cyan);
  transition: background-color .25s var(--ease), border-color .25s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
  background: rgba(52, 239, 198, .12);
  border-color: rgba(52, 239, 198, .55);
}

.page-faq .faq-item__a {
  max-width: 64ch;
  padding: 0 0 20px;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body);
}

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

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

.page-faq .faq-item__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 239, 198, .38);
  transition: border-color .2s var(--ease);
}

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

/* ---------- 状态图例 ---------- */
.page-faq .faq-legend {
  margin: 14px 0 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(22, 48, 42, .42);
}

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

.page-faq .faq-legend__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-legend__row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-body);
}

.page-faq .faq-legend__row b {
  font-weight: 700;
  color: var(--fog);
}

/* ---------- 三步操作路径 ---------- */
.page-faq .faq-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 14px 0 12px;
  font-family: var(--font-sans);
  font-size: 13px;
}

.page-faq .faq-steps__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px dashed var(--faq-rule-strong);
  border-radius: var(--radius-pill);
  color: var(--fog);
}

.page-faq .faq-steps__n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

.page-faq .faq-steps__arrow {
  flex: none;
  width: 34px;
  height: 10px;
  color: var(--cyan);
  opacity: .8;
}

/* ---------- 分册插图 ---------- */
.page-faq .faq-shot {
  margin: 22px 0 0;
  max-width: 300px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

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

.page-faq .faq-shot figcaption {
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--moss);
}

/* ---------- 结尾引导 ---------- */
.page-faq .faq-cta {
  padding: clamp(24px, 4vw, 48px) 0 clamp(48px, 7vw, 88px);
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(52, 239, 198, .09), transparent 58%),
    var(--panel);
}

.page-faq .faq-cta__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--rose);
}

.page-faq .faq-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 56ch;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-cta__actions .btn {
  flex: 1 1 auto;
  min-width: 132px;
  text-align: center;
}

@media (min-width: 820px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-faq .faq-cta__actions {
    flex-direction: column;
    flex-wrap: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-item__q::after,
  .page-faq .faq-rail__link {
    transition: none;
  }
}
<<<END>>>