.page-faq {
  background: var(--paper);
  color: var(--body);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-block: 18px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  position: relative;
  isolation: isolate;
  background: var(--ink);
  color: var(--card);
  padding-block: 44px 72px;
  overflow: hidden;
}

.page-faq .faq-intro::before {
  content: "";
  position: absolute;
  right: -110px;
  top: -90px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 224, 198, 0.2), rgba(59, 224, 198, 0) 68%);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-intro::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--lime) 46%, var(--orange) 100%);
}

.page-faq .faq-intro__grid {
  display: grid;
  gap: 30px;
  align-items: end;
}

.page-faq .faq-intro .eyebrow {
  color: var(--cyan);
  margin: 0 0 16px;
}

.page-faq .faq-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 6.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--card);
  margin: 0 0 20px;
  max-width: 15em;
}

.page-faq .faq-lede {
  font-size: 16.5px;
  line-height: 1.85;
  color: rgba(246, 243, 236, 0.82);
  max-width: 60ch;
  margin: 0 0 14px;
}

.page-faq .faq-intro__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(216, 240, 106, 0.86);
}

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

.page-faq .faq-quick__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  padding: 14px 16px;
  background: rgba(246, 243, 236, 0.06);
  border-left: 2px solid var(--cyan);
  border-radius: 4px;
}

.page-faq .faq-quick__item:nth-child(2) {
  border-left-color: var(--orange);
}

.page-faq .faq-quick__item:nth-child(3) {
  border-left-color: var(--lime);
}

.page-faq .faq-quick__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-faq .faq-quick__label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16.5px;
  color: var(--card);
}

.page-faq .faq-quick__desc {
  font-size: 13.5px;
  line-height: 1.62;
  color: rgba(246, 243, 236, 0.7);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 36px;
  padding-block: 44px 76px;
}

/* 左栏索引 */
.page-faq .faq-index {
  background: var(--card);
  border-radius: var(--radius);
  border-top: 3px solid var(--orange);
  padding: 20px 18px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--body);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__item a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px dashed var(--line);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 160ms ease, padding-left 160ms ease;
}

.page-faq .faq-index__item a:hover,
.page-faq .faq-index__item a:focus-visible {
  color: var(--teal);
  padding-left: 6px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
  flex: 0 0 auto;
}

.page-faq .faq-index__foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--body);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  margin-bottom: 66px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange);
  flex: 0 0 auto;
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(21px, 3.4vw, 31px);
  line-height: 1.22;
  color: var(--ink);
}

.page-faq .faq-section__lede {
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.85;
  max-width: 62ch;
  color: var(--body);
}

.page-faq .faq-section__text {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  max-width: 62ch;
  color: var(--body);
}

.page-faq .faq-section__aside {
  margin: 22px 0 0;
  padding: 14px 18px;
  background: rgba(16, 59, 54, 0.07);
  border-left: 3px solid var(--teal);
  border-radius: 4px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--body);
}

.page-faq .faq-section__aside a {
  color: var(--teal);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
}

.page-faq .faq-section__aside a:hover,
.page-faq .faq-section__aside a:focus-visible {
  color: var(--orange);
  text-decoration-color: var(--orange);
}

/* ---------- 场景卡 ---------- */
.page-faq .faq-scenes {
  display: grid;
  gap: 14px;
}

.page-faq .faq-scene {
  display: block;
  background: var(--card);
  border-radius: var(--radius);
  border-top: 3px solid var(--cyan);
  padding: 20px 20px 18px;
  text-decoration: none;
  box-shadow: 0 1px 0 var(--line);
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.page-faq .faq-scene:nth-child(2) {
  border-top-color: var(--orange);
}

.page-faq .faq-scene:nth-child(3) {
  border-top-color: var(--lime);
}

.page-faq .faq-scene:hover,
.page-faq .faq-scene:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 16px 30px rgba(11, 42, 36, 0.16);
}

.page-faq .faq-scene:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-scene__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--body);
  margin-bottom: 10px;
}

.page-faq .faq-scene__title {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18.5px;
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 10px;
}

.page-faq .faq-scene__text {
  display: block;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body);
  margin-bottom: 16px;
}

.page-faq .faq-scene__go {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--teal);
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 2px;
}

/* ---------- 步骤路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 32px 60px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 42px;
  bottom: 6px;
  border-left: 2px dashed var(--line);
}

.page-faq .faq-step:last-child::before {
  content: none;
}

.page-faq .faq-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-step__title {
  margin: 7px 0 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--body);
  max-width: 58ch;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 30px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--teal);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.68;
  color: var(--body);
  max-width: 68ch;
}

/* ---------- 筛选示意 ---------- */
.page-faq .faq-filter {
  display: grid;
  gap: 12px;
  background: var(--teal);
  border-radius: var(--radius);
  padding: 20px 18px;
  margin-bottom: 24px;
}

.page-faq .faq-filter__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-filter__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(246, 243, 236, 0.6);
  min-width: 46px;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(246, 243, 236, 0.26);
  color: rgba(246, 243, 236, 0.78);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.page-faq .faq-chip--on {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 600;
}

/* ---------- 说明行 ---------- */
.page-faq .faq-rows {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-rows__item {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-rows__item dt {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--ink);
}

.page-faq .faq-rows__item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body);
  max-width: 62ch;
}

/* ---------- 结构示意 SVG ---------- */
.page-faq .faq-map {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  border-radius: var(--radius);
  margin-bottom: 24px;
}

/* ---------- 订阅卡片 ---------- */
.page-faq .faq-sub {
  display: grid;
  gap: 14px;
}

.page-faq .faq-sub__card {
  background: var(--card);
  border-radius: var(--radius);
  border-left: 3px solid var(--cyan);
  padding: 20px 20px 18px;
  box-shadow: 0 1px 0 var(--line);
}

.page-faq .faq-sub__card:nth-child(2) {
  border-left-color: var(--orange);
}

.page-faq .faq-sub__card--wide {
  border-left-color: var(--lime);
  background: var(--ink);
  color: rgba(246, 243, 236, 0.82);
}

.page-faq .faq-sub__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--body);
}

.page-faq .faq-sub__card--wide .faq-sub__tag {
  color: var(--cyan);
}

.page-faq .faq-sub__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .faq-sub__card--wide .faq-sub__title {
  color: var(--card);
}

.page-faq .faq-sub__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body);
}

.page-faq .faq-sub__card--wide .faq-sub__text {
  color: rgba(246, 243, 236, 0.8);
  max-width: 64ch;
}

.page-faq .faq-sub__meta {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body);
}

.page-faq .faq-sub__card--wide .faq-sub__meta {
  color: rgba(216, 240, 106, 0.88);
}

.page-faq .faq-sub__meta a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-qa-grid {
  display: grid;
  gap: 12px;
}

.page-faq .faq-qa {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 180ms ease, background 180ms ease;
}

.page-faq .faq-qa[open] {
  border-color: var(--cyan);
  background: #FBF8F1;
}

.page-faq .faq-qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .faq-qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-qa[open] .faq-qa__q::after {
  content: "–";
  color: var(--teal);
}

.page-faq .faq-qa__q:hover,
.page-faq .faq-qa__q:focus-visible {
  color: var(--teal);
}

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

.page-faq .faq-qa__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--body);
  padding-top: 3px;
}

.page-faq .faq-qa__a {
  padding: 0 18px 18px 18px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--body);
}

.page-faq .faq-qa__a p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .faq-qa__a a {
  color: var(--teal);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-sub {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-sub__card--wide {
    grid-column: 1 / -1;
  }

  .page-faq .faq-rows__item {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-intro {
    padding-block: 64px 96px;
  }

  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 56px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 258px minmax(0, 1fr);
    gap: 56px;
    padding-block: 60px 96px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    background: transparent;
    border-top: none;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 4px 0 4px 22px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-qa-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-scene,
  .page-faq .faq-index__item a,
  .page-faq .faq-qa {
    transition: none;
  }

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