.page-faq {
  --faq-line: rgba(192, 199, 208, .16);
  --faq-line-str: rgba(6, 182, 212, .34);
  --faq-panel: rgba(30, 38, 54, .58);
  --faq-panel-deep: rgba(16, 23, 36, .88);
}

.page-faq .faq-crumbs {
  padding-top: 22px;
}

.page-faq .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-faq .breadcrumbs a {
  color: var(--bmw-silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .breadcrumbs a:hover {
  color: var(--electric-blue);
  border-bottom-color: var(--electric-blue);
}

.page-faq .breadcrumbs__sep {
  margin: 0 8px;
  color: rgba(192, 199, 208, .4);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 30px 0 46px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(192, 199, 208, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 199, 208, .055) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(120% 90% at 12% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 90% at 12% 0%, #000 0%, transparent 78%);
  pointer-events: none;
}

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

.page-faq .faq-hero .eyebrow {
  color: var(--electric-blue);
  margin-bottom: 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--bright);
  margin: 0 0 18px;
  max-width: 20ch;
  text-shadow: 0 0 26px rgba(124, 58, 237, .5), 0 0 60px rgba(6, 182, 212, .18);
}

.page-faq .faq-hero .lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 26px;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--bmw-silver);
  background: var(--faq-panel);
  border: 1px solid var(--faq-line);
  border-left: 2px solid var(--electric-blue);
}

.page-faq .faq-hero__facts .mono {
  color: var(--benz-gold);
  font-size: 14px;
}

/* 主布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

/* 分类索引 */
.page-faq .faq-index {
  position: relative;
}

.page-faq .faq-index__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line);
}

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

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--bright);
  text-decoration: none;
  background: linear-gradient(150deg, var(--faq-panel), var(--faq-panel-deep));
  border: 1px solid var(--faq-line);
  transition: border-color .22s var(--ease), color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--bright);
  border-color: var(--neon-purple);
  transform: translateX(3px);
  box-shadow: 0 0 0 1px rgba(124, 58, 237, .28), 0 10px 24px -14px rgba(124, 58, 237, .8);
}

.page-faq .faq-index__no {
  font-size: 12px;
  color: var(--electric-blue);
  letter-spacing: .08em;
}

.page-faq .faq-index__link:hover .faq-index__no {
  color: var(--neon-pink);
}

.page-faq .faq-index__note {
  margin-top: 20px;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  background: rgba(124, 58, 237, .08);
  border: 1px dashed var(--faq-line-str);
}

.page-faq .faq-index__note p {
  margin: 0;
}

.page-faq .faq-index__note a {
  color: var(--electric-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 档案分组 */
.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.page-faq .faq-group {
  scroll-margin-top: 24px;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--benz-gold);
  border: 1px solid var(--faq-line);
  padding: 3px 8px;
}

.page-faq .faq-group__title {
  flex: 1 1 200px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3.2vw, 28px);
  line-height: 1.28;
  color: var(--bright);
  letter-spacing: -.005em;
}

/* 折叠问答卡 */
.page-faq .faq-block {
  position: relative;
  margin-bottom: 12px;
  background: linear-gradient(155deg, rgba(30, 38, 54, .82), rgba(11, 15, 26, .95));
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-line-str);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .faq-block:hover {
  border-color: var(--faq-line-str);
  box-shadow: 0 0 0 1px rgba(6, 182, 212, .14), 0 18px 40px -30px rgba(6, 182, 212, .9);
}

.page-faq .faq-block[open] {
  border-left-color: var(--neon-purple);
}

.page-faq .faq-block > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 44px 16px 16px;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.page-faq .faq-block > summary:focus-visible {
  outline: 2px solid var(--electric-blue);
  outline-offset: -3px;
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--electric-blue);
  padding-top: 4px;
}

.page-faq .faq-q {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--bright);
}

.page-faq .faq-sign {
  position: absolute;
  top: 20px;
  right: 18px;
  width: 14px;
  height: 14px;
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  background: var(--bmw-silver);
  transition: transform .25s var(--ease), opacity .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-sign::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .faq-block[open] .faq-sign::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-block[open] .faq-sign::before {
  background: var(--neon-pink);
}

.page-faq .faq-body {
  padding: 2px 16px 20px 16px;
  border-top: 1px dashed var(--faq-line);
  margin-top: 2px;
}

.page-faq .faq-body > p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--bmw-silver);
  max-width: 68ch;
}

.page-faq .faq-body a {
  color: var(--electric-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color .2s var(--ease);
}

.page-faq .faq-body a:hover {
  color: var(--neon-pink);
}

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 16px 0 0;
  padding: 0;
  max-width: 68ch;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--bmw-silver);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--benz-gold);
  border: 1px solid var(--faq-line);
  padding: 2px 0;
  text-align: center;
  margin-top: 3px;
}

/* 状态图例 */
.page-faq .faq-legend {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.page-faq .faq-legend__item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  min-height: 44px;
  background: rgba(30, 38, 54, .5);
  border: 1px solid var(--faq-line);
  transition: background .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-legend__item:hover {
  background: rgba(30, 38, 54, .9);
  border-color: var(--faq-line-str);
  transform: translateY(-2px);
}

.page-faq .faq-legend__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: 0 0 10px currentColor;
}

.page-faq .dot--idle { background: var(--laser-green); color: var(--laser-green); }
.page-faq .dot--mid { background: var(--warn-orange); color: var(--warn-orange); }
.page-faq .dot--busy { background: var(--benz-gold); color: var(--benz-gold); }
.page-faq .dot--full { background: var(--neon-pink); color: var(--neon-pink); }

.page-faq .faq-legend__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--bright);
}

.page-faq .faq-legend__desc {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .04em;
  text-align: right;
}

/* 客服准备清单 */
.page-faq .faq-checklist {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  max-width: 68ch;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 12px 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--bmw-silver);
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .faq-checklist li .mono {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--neon-pink);
  padding-top: 4px;
}

/* 配图 */
.page-faq .faq-figure {
  margin: 20px 0 0;
}

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

.page-faq .faq-figure .media-frame__caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-faq .faq-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero {
    padding: 44px 0 62px;
  }

  .page-faq .faq-block > summary {
    padding: 20px 52px 20px 20px;
    gap: 16px;
  }

  .page-faq .faq-num {
    min-width: 44px;
  }

  .page-faq .faq-body {
    padding: 4px 20px 24px 80px;
  }

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

  .page-faq .faq-group {
    scroll-margin-top: 30px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 262px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 28px;
    align-self: start;
    padding-right: 4px;
    border-right: 1px solid var(--faq-line);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-faq .faq-index__link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .faq-hero__facts {
    gap: 14px;
  }

  .page-faq .faq-legend {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-legend__item {
    grid-template-columns: 12px minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-items: start;
  }

  .page-faq .faq-legend__desc {
    grid-column: 2;
    text-align: left;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero {
    padding: 58px 0 76px;
  }
}
<<<END>>>