.page-faq {
  --faq-sect-y: clamp(48px, 9vw, 96px);
  --faq-muted-on-dark: rgba(185, 194, 203, .92);
  --faq-hairline: rgba(110, 122, 133, .28);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: clamp(20px, 4vw, 36px);
  padding-bottom: clamp(8px, 1.6vw, 14px);
}

.page-faq .faq-crumbs .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: .8125rem;
  letter-spacing: .02em;
  color: var(--lime);
}

.page-faq .faq-crumbs .crumbs a {
  color: var(--night-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--speed-state), color var(--speed-state);
}

.page-faq .faq-crumbs .crumbs a:hover,
.page-faq .faq-crumbs .crumbs a:focus-visible {
  color: var(--lamp-orange);
  border-bottom-color: var(--lamp-orange);
}

/* ---------- 通用层 ---------- */
.page-faq .eyebrow {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--night-blue);
}

.page-faq .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--night-blue);
  color: var(--cream);
  padding: clamp(34px, 6vw, 64px) 0 var(--faq-sect-y);
}

.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 5vw, 48px);
  align-items: end;
}

.page-faq .faq-hero .eyebrow {
  color: var(--lamp-orange);
}

.page-faq .faq-hero h1 {
  margin: 18px 0 24px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(38px, 8.6vw, 88px);
  line-height: 1.04;
  letter-spacing: .06em;
  color: var(--cream);
}

.page-faq .faq-hero .lede {
  max-width: 44ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--faq-muted-on-dark);
}

.page-faq .faq-hero__fig {
  margin: 0;
  border: 2px solid var(--silver);
  box-shadow: var(--hard-shadow-sm);
  background: var(--deep-blue);
}

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

/* ---------- 顶部索引 ---------- */
.page-faq .faq-index {
  background: var(--deep-blue);
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-index__inner {
  display: grid;
  gap: 12px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.page-faq .faq-index__kicker {
  margin: 0;
  font-size: .7rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--amber);
}

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

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--silver);
  color: var(--cream);
  font-size: .875rem;
  text-decoration: none;
  transition: border-color var(--speed-state), background-color var(--speed-state), color var(--speed-state);
}

.page-faq .faq-index__list a .mono {
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--silver);
  transition: color var(--speed-state);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: var(--lamp-orange);
  border-color: var(--lamp-orange);
  color: var(--deep-blue);
}

.page-faq .faq-index__list a:hover .mono,
.page-faq .faq-index__list a:focus-visible .mono {
  color: var(--deep-blue);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding: var(--faq-sect-y) 0;
  background: var(--paper);
  border-bottom: 1px solid var(--faq-hairline);
}

.page-faq .faq-group--cream {
  background: var(--cream);
}

.page-faq .faq-group__head {
  position: relative;
  padding-bottom: clamp(22px, 4vw, 42px);
}

.page-faq .faq-group__no {
  position: absolute;
  top: -0.12em;
  right: 0;
  z-index: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(84px, 19vw, 190px);
  line-height: .92;
  letter-spacing: .02em;
  pointer-events: none;
  user-select: none;
  color: var(--silver);
  opacity: .2;
}

@supports (-webkit-text-stroke: 1px black) {
  .page-faq .faq-group__no {
    color: transparent;
    -webkit-text-stroke: 2px var(--silver);
    opacity: .6;
  }
}

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

.page-faq .faq-group__title {
  margin: 12px 0 14px;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.22;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 54ch;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--lime);
}

/* ---------- 可展开问答 ---------- */
.page-faq .faq-group__list {
  border-top: 2px solid var(--ink);
}

.page-faq .expander {
  position: relative;
  border-bottom: 1px solid var(--faq-hairline);
}

.page-faq .expander::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--silver);
  transition: width var(--speed-state), background-color var(--speed-state);
}

.page-faq .expander[data-open]::before {
  width: 8px;
  background: var(--lamp-orange);
}

.page-faq .expander__head {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: clamp(20px, 3.2vw, 28px) clamp(14px, 2.4vw, 22px) clamp(20px, 3.2vw, 28px) clamp(20px, 3.4vw, 30px);
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
  transition: color var(--speed-state);
}

.page-faq .expander__head:hover {
  color: var(--lamp-orange);
}

.page-faq .expander__head:focus-visible {
  outline: 2px solid var(--lamp-orange);
  outline-offset: -2px;
}

.page-faq .expander__q {
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .01em;
}

.page-faq .expander__mark {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 1px solid var(--silver);
  transition: border-color var(--speed-state), background-color var(--speed-state);
}

.page-faq .expander__mark::before,
.page-faq .expander__mark::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink);
  transition: transform var(--speed-state), opacity var(--speed-state);
}

.page-faq .expander__mark::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .expander__mark::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .expander[data-open] .expander__mark {
  border-color: var(--lamp-orange);
  background: var(--lamp-orange);
}

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

.page-faq .expander__body {
  display: none;
}

.page-faq .expander[data-open] .expander__body {
  display: block;
}

.page-faq .expander__inner {
  max-width: 74ch;
  padding: 0 clamp(16px, 3vw, 28px) clamp(24px, 4vw, 34px) clamp(20px, 3.4vw, 30px);
}

.page-faq .expander__inner p {
  margin: 0 0 14px;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--ink);
}

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

.page-faq .expander__inner a {
  color: var(--night-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--speed-state);
}

.page-faq .expander__inner a:hover,
.page-faq .expander__inner a:focus-visible {
  color: var(--lamp-orange);
}

/* ---------- 答案内嵌表格 ---------- */
.page-faq .table-scroll {
  overflow-x: auto;
  margin-top: 18px;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-faq .data-table {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: .875rem;
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--faq-hairline);
}

.page-faq .data-table thead th {
  background: var(--deep-blue);
  color: var(--cream);
  font-weight: 500;
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-bottom: 0;
}

.page-faq .data-table tbody tr:nth-child(even) {
  background: rgba(185, 194, 203, .1);
}

.page-faq .data-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 步骤列表 ---------- */
.page-faq .step-list {
  list-style: none;
  counter-reset: faq-step;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step-list li {
  counter-increment: faq-step;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .step-list li::before {
  content: "0" counter(faq-step);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--deep-blue);
  background: var(--amber);
  border: 1px solid var(--ink);
  height: 26px;
  display: grid;
  place-items: center;
}

.page-faq .step-list li strong {
  color: var(--night-blue);
  font-weight: 600;
}

/* ---------- 准备清单区块 ---------- */
.page-faq .faq-prep {
  position: relative;
  overflow: hidden;
  background: var(--deep-blue);
  color: var(--cream);
  padding: var(--faq-sect-y) 0;
}

.page-faq .faq-prep::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.page-faq .faq-prep__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-faq .faq-prep .eyebrow {
  color: var(--lamp-orange);
}

.page-faq .faq-prep__title {
  margin: 14px 0 18px;
  font-size: clamp(26px, 4.6vw, 42px);
  line-height: 1.22;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-faq .faq-prep__desc {
  max-width: 50ch;
  margin: 0 0 28px;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--faq-muted-on-dark);
}

.page-faq .prep-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .prep-item {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  border: 2px solid var(--silver);
  background: rgba(243, 237, 227, .05);
  cursor: pointer;
  transition: border-color var(--speed-state), background-color var(--speed-state);
}

.page-faq .prep-item:hover {
  border-color: var(--amber);
}

.page-faq .prep-item__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .prep-item__box {
  position: relative;
  width: 26px;
  height: 26px;
  border: 2px solid var(--silver);
  transition: border-color var(--speed-state), background-color var(--speed-state);
}

.page-faq .prep-item__input:focus-visible + .prep-item__box {
  outline: 2px solid var(--lamp-orange);
  outline-offset: 2px;
}

.page-faq .prep-item__input:checked + .prep-item__box {
  background: var(--lamp-orange);
  border-color: var(--lamp-orange);
}

.page-faq .prep-item__input:checked + .prep-item__box::after {
  content: '';
  position: absolute;
  left: 7px;
  top: 2px;
  width: 7px;
  height: 13px;
  border: solid var(--deep-blue);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

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

.page-faq .prep-item__text strong {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--cream);
  transition: color var(--speed-state);
}

.page-faq .prep-item__text span {
  font-size: .875rem;
  line-height: 1.78;
  color: var(--faq-muted-on-dark);
}

.page-faq .prep-item__input:checked ~ .prep-item__text strong {
  color: var(--amber);
}

.page-faq .faq-prep__note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.85;
  color: var(--faq-muted-on-dark);
}

.page-faq .faq-prep__note a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--speed-state);
}

.page-faq .faq-prep__note a:hover,
.page-faq .faq-prep__note a:focus-visible {
  color: var(--lamp-orange);
}

.page-faq .faq-prep__fig {
  margin: 0;
  border: 2px solid var(--silver);
  box-shadow: var(--hard-shadow-sm);
  background: var(--night-blue);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-index__inner {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .prep-list {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-prep__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }
}

@media (max-width: 480px) {
  .page-faq .expander__q {
    font-size: 15.5px;
  }

  .page-faq .step-list li {
    grid-template-columns: 34px 1fr;
    gap: 10px;
  }

  .page-faq .step-list li::before {
    width: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
<<<END>>>