.page-faq {
  --faq-line: rgba(201, 214, 227, 0.16);
  --faq-line-strong: rgba(201, 214, 227, 0.3);
  background: var(--deep-space);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.25rem, 5.5vw, 4rem) 0 clamp(2rem, 4vw, 3rem);
  background:
    linear-gradient(115deg, rgba(13, 43, 69, 0.9) 0%, rgba(7, 26, 47, 0.2) 58%),
    var(--deep-space);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -30%;
  width: clamp(220px, 34vw, 460px);
  aspect-ratio: 1;
  border: 1px solid var(--faq-line);
  transform: rotate(45deg);
  pointer-events: none;
}

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

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-faq .crumb-sep {
  color: rgba(201, 214, 227, 0.42);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 1.75rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--compass-amber);
  margin: 0;
}

.page-faq h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  font-size: clamp(1.85rem, 5.4vw, 3.4rem);
  margin: 0.7rem 0 1rem;
}

.page-faq .faq-hero-lead {
  max-width: 48ch;
  margin: 0;
  color: var(--mist);
  font-size: clamp(0.98rem, 1.7vw, 1.06rem);
  line-height: 1.85;
}

.page-faq .faq-hero-legend {
  border: 1px solid var(--line-cyan);
  border-left: 3px solid var(--compass-amber);
  background: rgba(13, 43, 69, 0.78);
  padding: 1rem 1.1rem 1.15rem;
}

.page-faq .legend-title {
  margin: 0 0 0.75rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--signal-cyan);
  font-family: var(--font-mono);
}

.page-faq .legend-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.1rem;
}

.page-faq .legend-list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0;
  color: var(--paper);
  text-decoration: none;
  font-size: 0.92rem;
  border-bottom: 1px dashed var(--faq-line);
  transition: color 0.2s var(--ease);
}

.page-faq .legend-list li:last-child a {
  border-bottom: 0;
}

.page-faq .legend-list a:hover,
.page-faq .legend-list a:focus-visible {
  color: var(--compass-amber);
}

.page-faq .legend-key {
  font-size: 0.72rem;
  color: var(--signal-cyan);
  flex: 0 0 auto;
}

.page-faq .legend-cta {
  width: 100%;
  text-align: center;
}

/* ---------- 移动端快捷条 ---------- */
.page-faq .faq-quickbar {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem var(--gutter);
  overflow-x: auto;
  background: rgba(7, 26, 47, 0.95);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.page-faq .quickbar-label {
  flex: 0 0 auto;
  font-size: 0.72rem;
  color: var(--compass-amber);
  letter-spacing: 0.1em;
  padding-right: 0.2rem;
}

.page-faq .faq-quickbar a {
  flex: 0 0 auto;
  padding: 0.32rem 0.72rem;
  border: 1px solid var(--faq-line-strong);
  border-radius: 999px;
  color: var(--mist);
  text-decoration: none;
  font-size: 0.82rem;
  white-space: nowrap;
}

.page-faq .faq-quickbar a:first-of-type {
  border-color: var(--line-cyan);
  color: var(--signal-cyan);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
}

.page-faq .faq-rail,
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-rail-title {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin: 0 0 0.65rem;
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.35rem;
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .chapter-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-s);
  color: var(--mist);
  text-decoration: none;
  font-size: 0.85rem;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .chapter-link:hover,
.page-faq .chapter-link:focus-visible {
  color: var(--paper);
  border-color: var(--line-cyan);
}

.page-faq .rail-num {
  font-size: 0.7rem;
  color: var(--signal-cyan);
}

.page-faq .faq-rail-note {
  display: none;
  margin: 1rem 0 0;
  font-size: 0.78rem;
  line-height: 1.75;
  color: rgba(201, 214, 227, 0.7);
}

/* ---------- 区块 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: clamp(1.25rem, 3.6vw, 2.1rem);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-m);
  background: var(--midnight-panel);
  margin-bottom: 1.1rem;
  scroll-margin-top: calc(var(--header-h) + 4.5rem);
}

.page-faq .faq-block-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding-bottom: 0.85rem;
  margin-bottom: 0.9rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-block-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--compass-amber);
  flex: 0 0 auto;
}

.page-faq .faq-block-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  line-height: 1.35;
}

.page-faq .faq-block--teal {
  background: var(--jewel-teal);
  border-color: rgba(201, 214, 227, 0.22);
}

.page-faq .faq-block--indigo {
  background: var(--jewel-indigo);
  border-color: rgba(201, 214, 227, 0.22);
}

.page-faq .faq-block--wine {
  background: var(--jewel-wine);
  border-color: rgba(201, 214, 227, 0.22);
}

.page-faq .faq-block--paper {
  background: var(--paper);
  color: var(--graphite);
  border-color: var(--line-dark);
}

.page-faq .faq-block--paper .faq-block-head {
  border-bottom-color: var(--line-dark);
}

.page-faq .faq-block--paper .faq-block-num {
  color: var(--jewel-wine);
}

.page-faq .faq-block--paper .faq-block-title {
  color: var(--graphite);
}

/* ---------- 三步自查 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.75rem 0.85rem;
  background: rgba(7, 26, 47, 0.5);
  border-left: 2px solid var(--signal-cyan);
}

.page-faq .step-num {
  font-size: 0.75rem;
  color: var(--signal-cyan);
  padding-top: 0.22rem;
}

.page-faq .step-title {
  display: block;
  font-weight: 700;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.page-faq .steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hint {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  color: var(--compass-amber);
  font-family: var(--font-mono);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 1.2rem 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-s);
  background: var(--deep-space);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-faq .faq-figure--portrait {
  max-width: 300px;
  margin-inline: auto;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa:last-child {
  border-bottom: 0;
}

.page-faq .qa summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.85rem 1.7rem 0.85rem 0;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .qa summary::after {
  content: "";
  position: absolute;
  right: 0.15rem;
  top: 1.15rem;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--compass-amber);
  border-bottom: 2px solid var(--compass-amber);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease), top 0.22s var(--ease);
}

.page-faq .qa[open] summary::after {
  transform: rotate(-135deg);
  top: 1.3rem;
}

.page-faq .qa-tag {
  flex: 0 0 auto;
  font-size: 0.72rem;
  color: var(--signal-cyan);
  padding-top: 0.2rem;
}

.page-faq .qa-body {
  padding: 0 1.5rem 0.95rem 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .qa-body p {
  margin: 0 0 0.55rem;
}

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

/* 浅底区块内的问答配色 */
.page-faq .faq-block--paper .qa {
  border-bottom-color: var(--line-dark);
}

.page-faq .faq-block--paper .qa summary {
  color: var(--graphite);
}

.page-faq .faq-block--paper .qa summary:hover {
  color: var(--jewel-wine);
}

.page-faq .faq-block--paper .qa-tag {
  color: var(--jewel-wine);
}

.page-faq .faq-block--paper .qa-body {
  color: var(--ink-soft);
}

/* ---------- 统计区块双列 ---------- */
.page-faq .stats-split {
  display: grid;
  gap: 1.1rem;
}

/* ---------- 联系支持 ---------- */
.page-faq .support-lead {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .contact-grid {
  display: grid;
  gap: 0.65rem;
}

.page-faq .contact-item {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line-dark);
  border-left: 2px solid var(--jewel-teal);
  background: rgba(28, 36, 48, 0.035);
}

.page-faq .contact-label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--jewel-wine);
  margin-bottom: 0.3rem;
}

.page-faq .contact-item a,
.page-faq .contact-value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--link-teal);
  text-decoration: none;
  word-break: break-word;
}

.page-faq .contact-item a {
  border-bottom: 1px solid var(--line-dark);
}

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

.page-faq .contact-item p {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .support-note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line-dark);
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.1rem;
}

.page-faq .faq-block--paper .btn--ghost {
  color: var(--graphite);
  border-color: var(--line-dark);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-faq .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(1.75rem, 4vw, 3.25rem);
  }

  .page-faq .stats-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr);
    align-items: start;
    gap: 1.5rem;
  }

  .page-faq .faq-figure--portrait {
    margin-inline: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-quickbar {
    display: none;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(190px, 3fr) minmax(0, 7fr);
    gap: clamp(2rem, 4.5vw, 4.25rem);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-faq .faq-rail-list {
    display: block;
    overflow: visible;
    padding: 0 0 0 0.9rem;
    border-left: 1px solid var(--faq-line-strong);
    margin-left: 0.25rem;
    scrollbar-width: none;
  }

  .page-faq .chapter-link {
    position: relative;
    border: 0;
    border-radius: 0;
    padding: 0.5rem 0.4rem;
    white-space: normal;
    margin-left: -0.9rem;
    padding-left: 0.9rem;
    font-size: 0.88rem;
    border-left: 2px solid transparent;
    transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
  }

  .page-faq .chapter-link::before {
    content: "";
    position: absolute;
    left: -3.5px;
    top: 50%;
    width: 6px;
    height: 6px;
    transform: translateY(-50%) rotate(45deg);
    background: var(--deep-space);
    border: 1px solid var(--faq-line-strong);
    transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
  }

  .page-faq .chapter-link[data-active="true"] {
    color: var(--signal-cyan);
    border-left-color: var(--compass-amber);
  }

  .page-faq .chapter-link[data-active="true"]::before {
    background: var(--signal-cyan);
    border-color: var(--signal-cyan);
  }

  .page-faq .faq-rail-note {
    display: block;
  }

  .page-faq .faq-block {
    margin-bottom: 1.4rem;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero-legend {
    padding: 1.15rem 1.35rem 1.3rem;
  }

  .page-faq .qa summary {
    font-size: 1rem;
  }

  .page-faq .qa-body {
    font-size: 0.95rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .chapter-link,
  .page-faq .qa summary,
  .page-faq .qa summary::after,
  .page-faq .legend-list a {
    transition: none;
  }
}
<<<END>>>