.page-faq {
  --faq-answer: #D3DEE7;
  --faq-gap: 12px;
  --faq-radius: 2px;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  padding: 30px 0 0;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero__copy {
  min-width: 0;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(28px, 6.4vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 44em;
  font-size: 17px;
  line-height: 1.7;
  color: var(--faq-answer);
}

.page-faq .faq-hero__points {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-hero__points li {
  position: relative;
  padding-left: 42px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--faq-answer);
}

.page-faq .faq-hero__points .mono {
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--flame-soft);
  border-left: 2px solid var(--flame);
  padding-left: 8px;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-figure {
  margin: 0;
  background: var(--panel);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure__body {
  display: grid;
  gap: 10px;
}

.page-faq .faq-figure .media {
  margin: 0;
}

/* ============ 规模刻度带 ============ */
.page-faq .faq-band {
  margin-top: 36px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(91, 112, 133, .28) 0 1px, transparent 1px 72px),
    linear-gradient(180deg, rgba(16, 42, 62, .92), rgba(11, 27, 43, .92));
}

.page-faq .faq-band__inner {
  display: grid;
  grid-template-columns: 1fr;
}

.page-faq .faq-band__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 4px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-band__item:first-child {
  border-top: 0;
}

.page-faq .faq-band__num {
  font-size: 22px;
  font-weight: 700;
  color: var(--flame-soft);
  letter-spacing: 0.02em;
}

.page-faq .faq-band__label {
  font-size: 14px;
  color: var(--muted);
}

/* ============ 通用区块标题 ============ */
.page-faq .faq-pin,
.page-faq .faq-topics,
.page-faq .faq-talk {
  margin-top: 46px;
}

.page-faq .faq-head {
  margin-bottom: 18px;
}

.page-faq .faq-head .eyebrow {
  display: block;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal-soft);
}

.page-faq .faq-head h2 {
  margin: 0;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-head__note {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

/* ============ 置顶三问 ============ */
.page-faq .faq-pin__list {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .pin {
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--panel);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .pin--hot {
  border-color: rgba(232, 76, 29, .55);
  box-shadow: var(--glow-line);
}

.page-faq .pin[open] {
  background: linear-gradient(180deg, rgba(232, 76, 29, .08), rgba(16, 42, 62, .9) 60%);
}

.page-faq .pin__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .pin__no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--flame-soft);
  flex: 0 0 auto;
}

.page-faq .pin__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .pin__arrow {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--flame);
  transition: transform .2s var(--ease);
}

.page-faq .pin[open] .pin__arrow {
  transform: rotate(90deg);
}

.page-faq .pin__body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--line);
  margin-top: 0;
  padding-top: 14px;
}

.page-faq .pin__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--faq-answer);
}

/* ============ 主题切换条 ============ */
.page-faq .faq-tabs {
  margin-top: 4px;
}

.page-faq .faq-tabs__list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 0;
  border-bottom: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tab {
  position: relative;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 14px 12px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 15px;
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .faq-tab::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 8px;
  width: 12px;
  height: 1px;
  background: var(--edge);
  transition: background-color .16s var(--ease), width .16s var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--paper);
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--paper);
  border-bottom-color: var(--flame);
  background: rgba(232, 76, 29, .1);
}

.page-faq .faq-tab[aria-selected="true"]::before {
  background: var(--flame);
  width: 22px;
}

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

.page-faq .faq-tab__no {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--edge);
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab__no {
  color: var(--flame-soft);
}

.page-faq .faq-tab__name {
  font-weight: 600;
  white-space: nowrap;
}

.page-faq .faq-tab__count {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--edge);
  padding-left: 8px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab__count {
  color: var(--teal);
  border-left-color: rgba(46, 196, 182, .4);
}

/* ============ 分组问答 ============ */
.page-faq .faq-panel {
  padding-top: 10px;
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-screen-figure {
  margin: 16px 0 16px;
  background: var(--ink-deep);
}

.page-faq .faq-screen-figure .media {
  margin: 0;
}

.page-faq .qa {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 2px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__arrow {
  flex: 0 0 auto;
  margin-top: 2px;
  font-size: 12px;
  color: var(--flame);
  transition: transform .2s var(--ease);
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(90deg);
}

.page-faq .qa__text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .qa[open] .qa__text {
  color: var(--flame-soft);
}

.page-faq .qa__body {
  padding: 0 2px 16px 22px;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--faq-answer);
}

/* ============ 联系区 ============ */
.page-faq .faq-talk__grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-card {
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--panel);
  padding: 18px 16px;
  box-shadow: var(--shadow-1);
}

.page-faq .faq-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-faq .faq-card__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-card__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-talk__foot {
  margin-top: 20px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-talk__foot p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-answer);
}

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

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-faq .faq-band__inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-band__item {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 18px 16px;
  }

  .page-faq .faq-band__item:first-child {
    border-left: 0;
    padding-left: 4px;
  }

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

  .page-faq .pin__q {
    padding: 18px 20px;
  }

  .page-faq .pin__body {
    padding: 16px 20px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 38px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-band {
    margin-top: 48px;
  }

  .page-faq .faq-talk__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .qa {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    column-gap: 28px;
    align-items: start;
  }

  .page-faq .qa > .qa__q {
    grid-column: 1;
    padding: 18px 2px;
    border-top: 1px solid transparent;
  }

  .page-faq .qa > .qa__body {
    grid-column: 2;
    padding: 18px 0 18px 0;
    border-left: 1px solid var(--line);
    padding-left: 28px;
  }

  .page-faq .qa[open] > .qa__q {
    border-top-color: var(--line);
  }

  .page-faq .qa[open] > .qa__body {
    animation: faq-fade .24s var(--ease) both;
  }

  .page-faq .faq-screen-figure {
    margin: 20px 0 22px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-pin__list {
    gap: 14px;
  }

  .page-faq .pin__text {
    font-size: 18px;
  }
}

@keyframes faq-fade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .pin,
  .page-faq .pin__arrow,
  .page-faq .qa__arrow,
  .page-faq .faq-tab {
    transition: none;
  }

  .page-faq .qa[open] > .qa__body {
    animation: none;
  }
}
<<<END>>>