.page-faq {
  --faq-gap: clamp(20px, 3vw, 40px);
  background: var(--ink-000);
  color: var(--paper);
}

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

/* 首屏 */
.page-faq .faq-band {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 32px) 0 clamp(32px, 5vw, 64px);
  background:
    radial-gradient(120% 90% at 84% 0%, rgba(34, 240, 200, 0.11), transparent 62%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-band::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(34, 240, 200, 0.055) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(0deg, rgba(34, 240, 200, 0.045) 0 1px, transparent 1px 120px);
}

.page-faq .faq-band > .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-band .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-faq .faq-intro {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-faq .faq-intro h1 {
  margin: 0 0 16px;
  overflow-wrap: break-word;
}

.page-faq .faq-intro .eyebrow {
  margin: 0 0 12px;
}

.page-faq .faq-intro .lede {
  margin: 0;
  max-width: 34em;
}

.page-faq .faq-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 2.6vw, 34px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid rgba(34, 240, 200, 0.45);
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.page-faq .faq-stat-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-hero-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-700);
}

.page-faq .faq-hero-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* 主体骨架 */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  padding-top: clamp(24px, 4vw, 52px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq .faq-main,
.page-faq .faq-aside {
  min-width: 0;
}

/* 分类指示带 */
.page-faq .faq-aside-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-900);
  padding: 14px;
}

.page-faq .faq-aside-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-cat-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-cat-list li {
  flex: 0 0 auto;
}

.page-faq .faq-cat-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-cat-link:hover,
.page-faq .faq-cat-link:focus-visible {
  color: var(--cyan);
  border-color: var(--line);
  background: var(--ink-700);
  outline: none;
}

.page-faq .faq-cat-link.is-current {
  color: var(--paper);
  border-color: rgba(34, 240, 200, 0.5);
  background: rgba(34, 240, 200, 0.07);
}

.page-faq .faq-cat-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-aside-note {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* 章节头 */
.page-faq .faq-section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: clamp(14px, 2vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-section-head h2 {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

/* 高频四问 */
.page-faq .faq-quick {
  margin-bottom: clamp(30px, 4vw, 52px);
}

.page-faq .faq-quick-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-faq .faq-quick-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.4vw, 26px) clamp(18px, 2.4vw, 26px) clamp(44px, 4vw, 52px);
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-quick-card:hover,
.page-faq .faq-quick-card:focus-visible {
  border-color: var(--cyan);
  background: var(--ink-500);
  outline: none;
}

.page-faq .faq-quick-card h3 {
  margin: 0;
  font-size: clamp(16px, 1.5vw, 19px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-quick-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-quick-more {
  margin-top: 4px;
  font-size: 13px;
  color: var(--cyan);
}

.page-faq .faq-quick-num {
  position: absolute;
  right: clamp(14px, 2vw, 22px);
  bottom: 8px;
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1;
  color: rgba(34, 240, 200, 0.16);
  font-variant-numeric: tabular-nums;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-quick-card:hover .faq-quick-num,
.page-faq .faq-quick-card:focus-visible .faq-quick-num {
  color: rgba(255, 122, 41, 0.55);
}

/* 折叠条目 */
.page-faq .faq-section {
  margin-bottom: clamp(30px, 4vw, 52px);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(34, 240, 200, 0.45);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.2vw, 16.5px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 14px;
}

.page-faq .faq-mark {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-mark::before {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
  background: var(--cyan);
}

.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  top: 5px;
  bottom: 5px;
  left: 50%;
  width: 1.5px;
  margin-left: -0.75px;
  background: var(--cyan);
  transition: opacity 0.2s var(--ease);
}

.page-faq .faq-item[open] .faq-mark {
  border-color: var(--cyan);
}

.page-faq .faq-item[open] .faq-mark::after {
  opacity: 0;
}

.page-faq .faq-answer {
  padding: 0 18px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-answer p {
  margin: 0 0 8px;
  max-width: 58ch;
}

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

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .act {
  color: var(--paper);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* 历史交锋：文图并置 */
.page-faq .faq-history-layout {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .faq-history-list {
  min-width: 0;
}

.page-faq .faq-diagram {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--ink-900);
}

.page-faq .faq-diagram img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .faq-diagram figcaption {
  padding: 9px 11px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}

/* 兜底联系 */
.page-faq .faq-fallback {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-fallback::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 240, 200, 0.16), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-fallback h2 {
  position: relative;
  z-index: 1;
  margin: 0 0 10px;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-fallback p {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-contact-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-contact-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.2vw, 16px);
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-more {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
}

.page-faq .faq-more a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

/* 断点 */
@media (min-width: 720px) {
  .page-faq .faq-quick-grid {
    grid-template-columns: 1.12fr 0.88fr;
    align-items: start;
  }

  .page-faq .faq-quick-card:nth-child(even) {
    margin-top: clamp(18px, 3vw, 40px);
  }
}

@media (min-width: 760px) {
  .page-faq .faq-history-layout {
    grid-template-columns: minmax(0, 1fr) 190px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-intro {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    grid-template-areas: "main aside";
    align-items: start;
  }

  .page-faq .faq-main {
    grid-area: main;
  }

  .page-faq .faq-aside {
    grid-area: aside;
  }

  .page-faq .faq-aside-box {
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }

  .page-faq .faq-cat-list {
    display: block;
    overflow: visible;
  }

  .page-faq .faq-cat-list li {
    display: block;
    margin-bottom: 4px;
  }

  .page-faq .faq-cat-link {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick-card,
  .page-faq .faq-quick-num,
  .page-faq .faq-item,
  .page-faq .faq-mark,
  .page-faq .faq-mark::after,
  .page-faq .faq-cat-link,
  .page-faq .faq-more a {
    transition: none;
  }
}
<<<END>>>