.page-faq {
  --faq-hair: rgba(107, 135, 153, 0.26);
  --faq-hair-strong: rgba(107, 135, 153, 0.42);
  --faq-glow: rgba(18, 58, 90, 0.9);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(120% 92% at 84% 6%, var(--faq-glow) 0%, rgba(6, 23, 40, 0) 62%),
    var(--ink-900);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(107, 135, 153, 0.22) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.55;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), transparent 82%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), transparent 82%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  padding-block: clamp(26px, 5vw, 46px) clamp(38px, 7vw, 76px);
  align-items: center;
}

.page-faq .faq-hero__title {
  font-family: var(--font-sans);
  font-size: clamp(32px, 6vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin-top: 14px;
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 48ch;
  color: var(--mist);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  margin-top: 26px;
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-jump__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--faq-hair-strong);
  background: rgba(14, 44, 71, 0.65);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  clip-path: var(--chamfer-sm);
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease, background-color var(--t-fast) ease;
}

.page-faq .faq-jump__link .mono {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--paper);
  border-color: var(--amber);
  background: var(--ink-600);
}

.page-faq .faq-hero__map {
  position: relative;
  padding: 4px;
}

.page-faq .faq-hero__map::after {
  content: "";
  position: absolute;
  inset: -6% -4% -6% -4%;
  background: radial-gradient(60% 60% at 50% 50%, rgba(242, 163, 58, 0.14), rgba(6, 23, 40, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-path {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-step__box {
  fill: rgba(14, 44, 71, 0.88);
  stroke: var(--faq-hair-strong);
  stroke-width: 1;
  transition: fill var(--t-mid) ease, stroke var(--t-mid) ease;
}

.page-faq .faq-step__bar {
  fill: var(--amber);
  transition: fill var(--t-mid) ease;
}

.page-faq .faq-step__idx {
  fill: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-step__title {
  fill: var(--paper);
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-step__desc {
  fill: var(--mist);
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.01em;
}

.page-faq .faq-step:hover .faq-step__box,
.page-faq .faq-step:focus-within .faq-step__box {
  fill: var(--ink-600);
  stroke: var(--amber);
}

.page-faq .faq-step:hover .faq-step__bar {
  fill: var(--amber-hi);
}

.page-faq .faq-link-line {
  stroke: rgba(242, 163, 58, 0.6);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
}

/* ---------- 主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(38px, 6vw, 80px);
  background: var(--ink-900);
}

.page-faq .faq-body__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-side {
  border-left: 2px solid var(--ink-600);
  padding-left: 16px;
}

.page-faq .faq-side__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px 8px 0;
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-faq .faq-side__link .mono {
  font-size: 11px;
  color: var(--line);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--amber);
}

.page-faq .faq-side__link:hover .mono,
.page-faq .faq-side__link:focus-visible .mono {
  color: var(--amber);
}

.page-faq .faq-side__note {
  margin-top: 20px;
  padding: 12px 14px;
  background: rgba(10, 34, 57, 0.75);
  border: 1px solid var(--faq-hair);
  clip-path: var(--chamfer-sm);
  color: var(--line);
  font-size: 12.5px;
  line-height: 1.7;
}

.page-faq .qa-group {
  border-top: 1px solid var(--faq-hair);
  padding-top: 22px;
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .qa-group:first-child {
  margin-top: 0;
  border-top: 0;
  padding-top: 0;
}

.page-faq .qa-group__head {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.page-faq .qa-group__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .qa-group__title {
  font-family: var(--font-sans);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .qa-group__note {
  color: var(--line);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .qa-list {
  display: grid;
  gap: 8px;
}

.page-faq .qa {
  background: rgba(10, 34, 57, 0.6);
  border: 1px solid var(--faq-hair);
  clip-path: var(--chamfer-sm);
  transition: background-color var(--t-mid) ease, border-color var(--t-mid) ease;
}

.page-faq .qa[open] {
  background: rgba(18, 58, 90, 0.68);
  border-color: rgba(242, 163, 58, 0.42);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  transition: color var(--t-fast) ease;
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover {
  color: var(--amber-hi);
}

.page-faq .qa__q:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--amber-hi);
}

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

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--amber);
  transition: transform var(--t-mid) ease, opacity var(--t-mid) ease;
}

.page-faq .qa__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: scaleY(0);
}

.page-faq .qa__a {
  padding: 0 16px 16px;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.78;
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__next {
  margin-top: 12px !important;
}

.page-faq .qa__next a {
  color: var(--amber);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 163, 58, 0.45);
  padding-bottom: 1px;
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-faq .qa__next a:hover,
.page-faq .qa__next a:focus-visible {
  color: var(--amber-hi);
  border-bottom-color: var(--amber-hi);
}

.page-faq .qa-figure {
  margin: 18px 0 4px;
  max-width: 640px;
}

.page-faq .qa-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--faq-hair-strong);
  background: var(--ink-800);
  clip-path: var(--chamfer);
  object-fit: cover;
}

.page-faq .qa-figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--line);
}

/* ---------- 下一步 ---------- */
.page-faq .faq-next {
  background: var(--ink-800);
  border-top: 1px solid var(--faq-hair);
  padding-block: clamp(36px, 6vw, 72px);
}

.page-faq .faq-next__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-next__lede {
  margin-top: 12px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
  max-width: 42ch;
}

.page-faq .faq-next__contact {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-hair);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--line);
  word-break: break-word;
}

.page-faq .faq-next__cards {
  display: grid;
  gap: 10px;
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: rgba(14, 44, 71, 0.82);
  border: 1px solid var(--faq-hair-strong);
  clip-path: var(--chamfer-sm);
  text-decoration: none;
  transition: border-color var(--t-fast) ease, background-color var(--t-fast) ease, transform var(--t-mid) ease;
}

.page-faq .faq-next__card-k {
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-next__card-k::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  vertical-align: 2px;
  background: var(--amber);
}

.page-faq .faq-next__card-v {
  color: var(--mist);
  font-size: 13px;
  line-height: 1.65;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  border-color: var(--amber);
  background: var(--ink-600);
  transform: translateY(-2px);
}

.page-faq .faq-next__card:hover .faq-next__card-v,
.page-faq .faq-next__card:focus-visible .faq-next__card-v {
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-next__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .qa__q {
    padding: 16px 20px;
    font-size: 16px;
  }

  .page-faq .qa__a {
    padding: 0 20px 18px;
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-body__inner {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-side {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .qa,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .qa__q,
  .page-faq .qa__next a,
  .page-faq .faq-next__card,
  .page-faq .faq-step__box,
  .page-faq .faq-step__bar,
  .page-faq .faq-side__link {
    transition: none;
  }

  .page-faq .faq-next__card:hover,
  .page-faq .faq-next__card:focus-visible {
    transform: none;
  }
}
<<<END>>>