.page-faq {
  background: var(--ink);
  color: var(--silver);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 首屏观测窗 ---------- */
.page-faq .faq-hero {
  padding-top: 24px;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--line);
}

.page-faq .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
}

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

.page-faq .hero-frame {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--orbit-deep) 0%, var(--orbit-soft) 58%, var(--ink) 100%);
}

.page-faq .hero-top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
  background-image: repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 14px);
  background-size: 100% 5px;
  background-position: bottom left;
  background-repeat: repeat-x;
}

.page-faq .hero-tag {
  color: var(--orange);
  text-transform: uppercase;
}

.page-faq .hero-clock {
  color: var(--cyan);
}

.page-faq .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-faq .hero-copy {
  padding: 28px 20px 24px;
}

.page-faq .hero-copy h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(26px, 5.4vw, 46px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--silver);
  max-width: 18em;
}

.page-faq .hero-lead {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .hero-media {
  position: relative;
  margin: 0;
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 180px;
  max-height: 320px;
  object-fit: cover;
  filter: saturate(0.85);
}

.page-faq .hero-media-cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: rgba(7, 12, 24, 0.82);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .hero-index {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 14px 20px 16px;
  border-top: 1px solid var(--line);
  background: var(--orbit);
}

.page-faq .hero-index-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--orange);
  text-transform: uppercase;
}

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

.page-faq .hero-index-list a {
  font-size: 13px;
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.page-faq .hero-index-list a:hover,
.page-faq .hero-index-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 章节头 ---------- */
.page-faq .faq-body {
  padding-top: clamp(36px, 6vw, 72px);
}

.page-faq .section-head {
  margin-bottom: 24px;
  border-left: 2px solid var(--orange);
  padding-left: 14px;
}

.page-faq .eyebrow {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-faq .section-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-faq .section-sub {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 分类筛选 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 0 18px;
  margin-bottom: 6px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-filter input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-filter label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: var(--orbit-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist);
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-faq .faq-filter label:hover {
  border-color: var(--mist);
  color: var(--silver);
}

.page-faq .faq-filter input:focus-visible + label {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-filter input:checked + label {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .faq-filter .count {
  color: inherit;
  opacity: 0.68;
  font-size: 10px;
}

/* ---------- 问答列表 ---------- */
.page-faq .qa-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa-card {
  border-top: 1px solid var(--line);
  background: transparent;
  position: relative;
}

.page-faq .qa-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background-color 160ms ease;
}

.page-faq .qa-card[open]::before {
  background: var(--orange);
}

.page-faq .qa-card summary {
  display: grid;
  grid-template-columns: 34px 1fr 20px;
  gap: 10px;
  align-items: start;
  padding: 16px 14px 16px 16px;
  cursor: pointer;
  list-style: none;
}

.page-faq .qa-card summary::-webkit-details-marker {
  display: none;
}

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

.page-faq .qa-no {
  font-size: 11px;
  line-height: 1.9;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-faq .qa-card[open] .qa-no {
  color: var(--orange);
}

.page-faq .qa-q {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--silver);
  transition: color 160ms ease;
}

.page-faq .qa-card summary:hover .qa-q {
  color: var(--cyan);
}

.page-faq .qa-mark {
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 7px;
  justify-self: end;
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  background: var(--mist);
  transition: transform 180ms ease, background-color 180ms ease;
}

.page-faq .qa-mark::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 1px;
}

.page-faq .qa-mark::after {
  left: 5px;
  top: 0;
  width: 1px;
  height: 12px;
}

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

.page-faq .qa-card[open] .qa-mark::before {
  background: var(--orange);
}

.page-faq .qa-a {
  padding: 0 16px 18px 60px;
  border-top: 1px dashed var(--line-soft);
  margin-top: -2px;
  padding-top: 14px;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-faq .qa-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 194, 0.4);
}

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

/* ---------- 检索路径 ---------- */
.page-faq .flow-block {
  padding-top: clamp(36px, 6vw, 72px);
}

.page-faq .flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  border: 1px solid var(--line);
  background: var(--orbit-soft);
  padding: 16px;
}

.page-faq .flow-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink);
  position: relative;
  overflow: hidden;
}

.page-faq .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.9);
}

.page-faq .flow-cap {
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .flow-copy .section-title {
  margin-bottom: 18px;
}

.page-faq .flow-steps {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .flow-steps li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .step-no {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.06em;
  line-height: 1.9;
}

.page-faq .flow-steps h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--silver);
}

.page-faq .flow-steps p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 联系准备 ---------- */
.page-faq .prep {
  padding-top: clamp(36px, 6vw, 72px);
}

.page-faq .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--orbit);
}

.page-faq .prep-lead {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 34em;
}

.page-faq .prep-contact {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .prep-contact p {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--silver);
}

.page-faq .prep-key {
  display: inline-block;
  min-width: 5em;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .prep-contact a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .prep-contact a:hover,
.page-faq .prep-contact a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .prep-contact .prep-note {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .prep-list li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .prep-no {
  font-size: 11px;
  line-height: 1.9;
  color: var(--orange);
  letter-spacing: 0.06em;
}

.page-faq .prep-list h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--silver);
}

.page-faq .prep-list p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .prep-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 20px;
  padding: 16px 18px;
  border: 1px solid var(--orange);
  background: linear-gradient(90deg, rgba(255, 106, 42, 0.12), transparent 70%);
}

.page-faq .prep-cta p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
  max-width: 34em;
}

.page-faq .prep-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }

  .page-faq .hero-media {
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .hero-media img {
    height: 100%;
    max-height: none;
    min-height: 100%;
  }

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

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

  .page-faq .qa-card:nth-child(odd) {
    border-right: 1px solid var(--line);
  }

  .page-faq .qa-card--wide {
    border-right: 0;
  }

  .page-faq .qa-a {
    padding-left: 60px;
  }

  .page-faq .flow-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 28px;
    padding: 20px;
    align-items: start;
  }

  .page-faq .prep-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
    padding: 24px;
  }
}

@media (min-width: 1080px) {
  .page-faq .hero-copy {
    padding: 40px 32px 34px;
  }

  .page-faq .hero-top {
    padding: 12px 24px;
  }

  .page-faq .hero-index {
    padding: 16px 24px;
  }

  .page-faq .qa-card summary {
    padding: 18px 20px 18px 22px;
  }

  .page-faq .qa-a {
    padding-left: 66px;
    padding-right: 32px;
  }

  .page-faq .flow-block {
    padding-top: 84px;
  }

  .page-faq .prep {
    padding-top: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-filter label,
  .page-faq .qa-q,
  .page-faq .qa-mark::before,
  .page-faq .qa-mark::after,
  .page-faq .qa-card::before {
    transition: none;
  }
}
<<<END>>>