.page-faq {
  --faq-radius: 16px;
  --faq-ink-soft: rgba(27, 22, 18, .78);
  position: relative;
  display: block;
  padding: 8px 0 72px;
  color: var(--cream);
  background:
    radial-gradient(1100px 520px at 84% -10%, rgba(36, 20, 71, .9), transparent 70%),
    radial-gradient(760px 420px at 2% 14%, rgba(110, 139, 255, .13), transparent 72%),
    var(--void);
}

.page-faq .faq-hero {
  padding: 18px 0 0;
}

.page-faq .hero-grid {
  display: grid;
  gap: 26px;
  margin-top: 20px;
}

.page-faq .display-title {
  margin: 12px 0 18px;
  line-height: .98;
}

.page-faq .lede {
  max-width: 54ch;
  color: var(--mist);
}

.page-faq .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 首屏索引卡 */
.page-faq .hero-panel {
  align-self: start;
  padding: 18px 18px 10px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--glass);
  box-shadow: var(--shadow-glass);
  backdrop-filter: blur(12px);
}

.page-faq .panel-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
}

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

.page-faq .panel-list li + li {
  border-top: 1px solid var(--line);
}

.page-faq .panel-link {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 11px 2px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--cream);
  text-decoration: none;
  transition: color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .panel-link:hover,
.page-faq .panel-link:focus-visible {
  color: var(--cyan);
  transform: translateX(3px);
}

.page-faq .panel-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ember);
}

/* 首屏图 */
.page-faq .hero-media {
  margin: 28px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%);
  background: var(--nebula);
}

.page-faq .hero-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 数据条 */
.page-faq .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  overflow: hidden;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--line);
}

.page-faq .stat-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  background: rgba(7, 11, 31, .74);
}

.page-faq .stat-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-faq .stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* 主体两栏 */
.page-faq .faq-shell {
  display: grid;
  gap: 30px;
  margin-top: 44px;
}

.page-faq .aside-inner {
  padding-top: 14px;
  border-top: 2px solid var(--gold);
}

.page-faq .aside-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .aside-nav {
  display: flex;
  gap: 8px;
  padding-bottom: 6px;
  overflow-x: auto;
}

.page-faq .aside-link {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--cream);
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-faq .aside-extra {
  display: none;
}

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

.page-faq .aside-extra-link {
  display: block;
  padding: 7px 0;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
}

.page-faq .aside-extra-link:hover,
.page-faq .aside-extra-link:focus-visible {
  color: var(--aurora);
}

/* 章节头 */
.page-faq .faq-section {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

.page-faq .faq-section + .faq-section {
  margin-top: 50px;
}

.page-faq .section-head {
  display: grid;
  gap: 8px;
}

.page-faq .faq-sec-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .faq-sec-title {
  margin: 0;
  font-size: clamp(23px, 4.2vw, 34px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.24;
  color: var(--cream);
}

.page-faq .faq-sec-sub {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* 折叠问答 */
.page-faq .q-list {
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .q-item {
  border-bottom: 1px solid var(--line);
  transition: background .2s var(--ease);
}

.page-faq .q-item[open] {
  background: rgba(255, 255, 255, .03);
}

.page-faq .q-summary {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 17px 12px 17px 2px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .q-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ember);
}

.page-faq .q-text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
}

.page-faq .q-mark {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 1px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--gold);
}

.page-faq .q-mark::before {
  content: "+";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
}

.page-faq .q-item[open] .q-mark {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--void);
}

.page-faq .q-item[open] .q-mark::before {
  content: "−";
}

.page-faq .q-body {
  padding: 0 12px 22px 38px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .q-body p {
  margin: 0 0 10px;
}

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

.page-faq .inline-link {
  color: var(--aurora);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .inline-link:hover,
.page-faq .inline-link:focus-visible {
  color: var(--cyan);
}

.page-faq .q-steps {
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .q-steps li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .step-num {
  flex: 0 0 auto;
  margin-top: 3px;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--void);
  background: var(--cyan);
}

/* 设备示意 */
.page-faq .device-figure {
  margin: 20px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--nebula);
}

.page-faq .device-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .device-cap {
  padding: 11px 16px 13px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
  background: rgba(7, 11, 31, .6);
}

/* 纸面记录卡 */
.page-faq .record-card {
  margin-top: 20px;
  padding: 24px 20px 22px;
  border-radius: var(--faq-radius);
  color: var(--ink);
  background:
    linear-gradient(180deg, #F7EEDC 0%, var(--cream) 58%, #EFE1C8 100%);
  box-shadow: 0 20px 40px rgba(4, 6, 18, .45);
}

.page-faq .record-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .record-intro {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .filter-grid {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.page-faq .filter-item {
  padding: 12px 14px 13px;
  border: 1px solid rgba(27, 22, 18, .16);
  border-radius: 10px;
  background: rgba(255, 255, 255, .42);
}

.page-faq .filter-key {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: #9A5220;
}

.page-faq .filter-name {
  display: block;
  font-size: 15px;
  color: var(--ink);
}

.page-faq .filter-desc {
  margin: 5px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(27, 22, 18, .72);
}

.page-faq .record-note {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--ember);
  border-radius: 0 8px 8px 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(27, 22, 18, .8);
  background: rgba(226, 96, 59, .1);
}

/* 联系 */
.page-faq .contact-grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-faq .contact-card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--glass);
  box-shadow: var(--shadow-glass);
  backdrop-filter: blur(10px);
}

.page-faq .contact-title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-faq .contact-card .contact-title + .copy-line + .contact-title {
  margin-top: 20px;
}

.page-faq .copy-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.page-faq .contact-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .service-list {
  display: grid;
  gap: 12px;
  margin: 6px 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .service-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .service-list strong {
  color: var(--cream);
  font-weight: 600;
}

.page-faq .service-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--ember);
}

/* 平板及以上 */
@media (min-width: 640px) {
  .page-faq .stat-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .record-card {
    padding: 28px 26px 26px;
  }
}

@media (min-width: 900px) {
  .page-faq {
    padding-bottom: 92px;
  }

  .page-faq .faq-hero {
    padding-top: 26px;
  }

  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    gap: 40px;
    align-items: end;
    margin-top: 26px;
  }

  .page-faq .hero-actions {
    margin-top: 30px;
  }

  .page-faq .hero-media {
    margin-top: 34px;
  }

  .page-faq .contact-grid {
    grid-template-columns: 1.05fr .95fr;
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    margin-top: 56px;
  }

  .page-faq .aside-inner {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
  }

  .page-faq .aside-nav {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .aside-link {
    padding: 9px 0 9px 14px;
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
    white-space: normal;
    transition: color .2s var(--ease), border-color .2s var(--ease);
  }

  .page-faq .aside-link:hover,
  .page-faq .aside-link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-faq .aside-extra {
    display: block;
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }

  .page-faq .q-summary {
    padding: 19px 18px 19px 2px;
  }

  .page-faq .q-text {
    font-size: 17px;
  }

  .page-faq .q-body {
    padding: 0 18px 24px 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .panel-link,
  .page-faq .q-item,
  .page-faq .aside-link {
    transition: none;
  }

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