.page-faq {
  --faq-gap: clamp(20px, 4vw, 44px);
  background: var(--night-900);
  color: var(--text);
  padding-bottom: clamp(56px, 10vw, 104px);
}

.page-faq .content-wrap {
  width: 100%;
  max-width: var(--rail);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(28px, 5vw, 56px));
  padding-bottom: clamp(32px, 6vw, 64px);
  background:
    radial-gradient(120% 90% at 86% 4%, rgba(182, 255, 59, 0.14), transparent 58%),
    linear-gradient(180deg, var(--night-900) 0%, var(--night-800) 100%);
  border-bottom: 1px solid var(--line-600);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(30, 53, 80, 0.6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 53, 80, 0.6) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(82% 70% at 72% 18%, #000 0%, transparent 78%);
  mask-image: radial-gradient(82% 70% at 72% 18%, #000 0%, transparent 78%);
}

.page-faq .faq-hero .content-wrap {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 36px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: end;
}

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

.page-faq .eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--copper);
  margin: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 66px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 14px 0 18px;
}

.page-faq .faq-hero__accent {
  color: var(--route);
  box-shadow: inset 0 -0.18em 0 rgba(182, 255, 59, 0.16);
}

.page-faq .faq-hero__intro {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-600);
}

.page-faq .faq-hero__facts div {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-hero__facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-faq .faq-hero__facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  color: var(--copper-soft);
}

.page-faq .faq-hero__figure {
  margin: 0;
  padding: 6px;
  border: 1px solid var(--line-600);
  border-radius: 4px;
  background: var(--night-700);
  box-shadow: 0 24px 60px -40px rgba(0, 0, 0, 0.9);
}

.page-faq .faq-hero__figure img,
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 2px;
  object-fit: cover;
}

.page-faq .media-frame__caption {
  margin: 10px 2px 2px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--dim);
}

/* ---------- 主题索引条 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: rgba(11, 22, 38, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-600);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-600);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.16s var(--ease), background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .faq-index__link span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper);
  transition: color 0.16s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--night-900);
  background: var(--route);
  border-color: var(--route);
  outline: none;
}

.page-faq .faq-index__link:hover span,
.page-faq .faq-index__link:focus-visible span {
  color: var(--night-900);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(32px, 6vw, 60px);
}

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

.page-faq .faq-section {
  scroll-margin-top: calc(var(--header-h) + 76px);
}

.page-faq .faq-section + .faq-section {
  margin-top: clamp(36px, 6vw, 64px);
}

.page-faq .faq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-600);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--copper);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 29px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-section:target .faq-section__title {
  color: var(--route);
}

.page-faq .faq-section__note {
  flex: 1 1 220px;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  margin-top: 4px;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-600);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 2.4vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  transition: color 0.16s var(--ease);
}

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

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

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--route);
  outline-offset: 4px;
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  line-height: 1;
  padding-top: 7px;
  color: var(--dim);
  transition: color 0.16s var(--ease);
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--route);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  border: 1px solid var(--line-600);
  border-radius: 50%;
  flex: none;
  transition: border-color 0.16s var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  border-color: var(--route);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--route);
  transform: translate(-50%, -50%);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 8px;
  height: 1px;
}

.page-faq .faq-item__mark::after {
  width: 1px;
  height: 8px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 0 22px 26px;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

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

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
}

/* ---------- 章节配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 8px;
  padding: 6px;
  border: 1px solid var(--line-600);
  border-radius: 4px;
  background: var(--night-700);
}

/* ---------- 右侧提示卡 ---------- */
.page-faq .faq-aside {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-faq .faq-aside__card {
  padding: 20px;
  border: 1px solid var(--line-600);
  border-radius: 4px;
  background: var(--night-700);
}

.page-faq .faq-aside__card--contact {
  border-left: 2px solid var(--route);
}

.page-faq .faq-aside__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--copper);
}

.page-faq .faq-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-aside__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px dashed var(--line-600);
  transition: color 0.16s var(--ease);
}

.page-faq .faq-aside__list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-aside__list a::after {
  content: "→";
  color: var(--route);
  font-size: 13px;
  transition: transform 0.16s var(--ease);
}

.page-faq .faq-aside__list a:hover,
.page-faq .faq-aside__list a:focus-visible {
  color: var(--route);
  outline: none;
}

.page-faq .faq-aside__list a:hover::after {
  transform: translateX(3px);
}

.page-faq .faq-aside__text {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-aside__text--small {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-600);
  font-size: 12px;
  color: var(--dim);
}

.page-faq .faq-aside__contact {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--copper-soft);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-item__a {
    padding-left: 34px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.85fr);
    gap: clamp(28px, 5vw, 64px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 76px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-aside__list a::after,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>