.page-faq {
  --faq-panel: rgba(15, 34, 51, .78);
  --faq-panel-2: rgba(12, 30, 46, .62);
  --faq-panel-open: rgba(19, 43, 65, .92);
  --faq-cyan-line: rgba(53, 230, 224, .4);
  --faq-cyan-wash: rgba(53, 230, 224, .08);
  --faq-green-wash: rgba(79, 214, 143, .07);
  --faq-step: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: 22px 42px;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(140, 108, 255, .22), transparent 62%),
    radial-gradient(90% 76% at 4% 14%, rgba(53, 230, 224, .16), transparent 64%),
    linear-gradient(180deg, var(--ink-750) 0%, rgba(8, 19, 31, 0) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(27, 58, 84, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 58, 84, .5) 1px, transparent 1px);
  background-size: 54px 54px;
  opacity: .3;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

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

.page-faq .faq-hero .breadcrumb {
  font-size: 13px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

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

.page-faq .faq-hero h1 {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(40px, 10vw, 86px);
  line-height: .98;
  letter-spacing: -.035em;
  color: var(--text);
  text-shadow: 0 0 42px rgba(53, 230, 224, .18);
}

.page-faq .faq-hero .lead {
  max-width: 62ch;
  color: var(--text);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__media {
  margin: 0;
  align-self: end;
}

.page-faq .faq-hero__media .media-frame__inner {
  border-radius: var(--radius);
  overflow: hidden;
}

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

/* ---------- 主栅格 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-block: 32px 76px;
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-sidebar {
  min-width: 0;
}

.page-faq .faq-cat-nav {
  display: grid;
  gap: 2px;
  margin-top: 10px;
  padding-left: 1px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-cat-nav a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 18px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-cat-nav a::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--line);
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-cat-nav a:hover,
.page-faq .faq-cat-nav a:focus-visible {
  color: var(--text);
  background-color: var(--faq-cyan-wash);
}

.page-faq .faq-cat-nav a:hover::before,
.page-faq .faq-cat-nav a:focus-visible::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 230, 224, .18);
}

.page-faq .faq-cat-nav__num {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-sidebar__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-sidebar__help {
  margin-top: 14px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, var(--faq-panel), var(--faq-panel-2));
  border-radius: var(--radius);
}

.page-faq .faq-sidebar__text {
  margin: 8px 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-cat {
  margin-bottom: 48px;
  scroll-margin-top: 92px;
}

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

.page-faq .faq-cat__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-cat__num {
  flex: none;
  padding: 4px 8px;
  font-size: 13px;
  line-height: 1.2;
  letter-spacing: .12em;
  color: var(--cyan);
  background: var(--faq-cyan-wash);
  border: 1px solid var(--faq-cyan-line);
  border-radius: var(--radius);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-cat__note {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--faq-panel), var(--faq-panel-2));
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--faq-cyan-line);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-cyan-line);
  background: linear-gradient(180deg, var(--faq-panel-open), var(--faq-panel-2));
  box-shadow: var(--glow-cyan);
}

.page-faq .faq-q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.58;
  color: var(--text);
}

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

.page-faq .faq-q::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 20px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-q::after {
  top: 24px;
  transform: rotate(-135deg);
}

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

.page-faq .faq-q__num {
  flex: none;
  margin-top: 3px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--cyan);
  background: var(--faq-cyan-wash);
  border: 1px solid rgba(53, 230, 224, .28);
  border-radius: var(--radius);
}

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

.page-faq .faq-a {
  padding: 4px 16px 18px;
  border-top: 1px dashed var(--line-soft);
  animation: faq-answer-in var(--dur-slow) var(--ease);
}

@keyframes faq-answer-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--faq-step);
  height: var(--faq-step);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 50%;
}

.page-faq .faq-a__outcome {
  margin: 16px 0 0;
  padding: 11px 13px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
  background: var(--faq-green-wash);
  border-left: 2px solid var(--green);
}

.page-faq .faq-a__label {
  display: inline-block;
  margin-right: 8px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--green);
}

/* ---------- 人工协助配图 ---------- */
.page-faq .faq-assist__media {
  margin: 0 0 18px;
}

.page-faq .faq-assist__media .media-frame__inner {
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-faq .faq-tail {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

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

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding-block: 30px 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
    gap: 34px;
  }

  .page-faq .faq-assist__media {
    margin-bottom: 22px;
  }

  .page-faq .faq-list {
    gap: 12px;
  }

  .page-faq .faq-q {
    padding: 17px 52px 17px 18px;
    font-size: 17px;
  }

  .page-faq .faq-a {
    padding: 6px 18px 22px;
  }
}

/* ---------- 桌面：常驻窄栏 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 52px;
    padding-block: 44px 96px;
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: 92px;
    align-self: start;
  }

  .page-faq .faq-cat {
    margin-bottom: 56px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-q::after,
  .page-faq .faq-cat-nav a,
  .page-faq .faq-item {
    transition: none;
  }
}
<<<END>>>