.page-faq {
  --faq-text: #C7D5EB;
  --faq-panel: #0F1A33;
  --faq-idx: 36px;
  --faq-gap: 12px;
  display: block;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(16px, 3vw, 26px);
  background:
    radial-gradient(115% 85% at 88% -12%, rgba(0, 229, 255, .18), transparent 62%),
    radial-gradient(90% 70% at 2% 104%, rgba(255, 107, 53, .10), transparent 66%),
    linear-gradient(180deg, #0A1128 0%, #0E1A34 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, .06) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 76%);
  pointer-events: none;
}

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

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
  margin-top: clamp(14px, 2.4vw, 26px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-faq .faq-hero__copy .lede {
  margin-top: 14px;
  max-width: 46ch;
  color: var(--faq-text);
}

.page-faq .faq-hero__points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-hero__points li {
  position: relative;
  padding-left: 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .04em;
  color: var(--c-cyan-soft);
}

.page-faq .faq-hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 12px;
  height: 2px;
  background: var(--c-orange);
}

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

.page-faq .faq-hero__visual {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__visual::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 68px;
  height: 68px;
  border-right: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
  opacity: .8;
}

.page-faq .faq-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--hair-cyan);
  clip-path: polygon(0 4%, 100% 0, 100% 100%, 0 96%);
  object-fit: cover;
}

.page-faq .faq-hero__bar {
  position: relative;
  z-index: 1;
  margin-top: clamp(26px, 4vw, 46px);
  border-top: var(--hair);
  background: rgba(10, 17, 40, .55);
}

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

.page-faq .faq-stat {
  padding: 16px 12px;
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-cyan);
}

.page-faq .faq-stat__unit {
  margin-left: 3px;
  font-size: .5em;
  font-weight: 500;
  color: var(--c-cyan-soft);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-micro);
  letter-spacing: .04em;
  color: var(--c-muted);
}

/* ============ 主体 ============ */
.page-faq .faq-body__head .lede a.faq-skip {
  color: var(--c-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-tabs {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-tablist {
  display: flex;
  align-items: stretch;
  gap: 4px;
  overflow-x: auto;
  border-bottom: var(--hair);
  scrollbar-width: thin;
}

.page-faq .faq-tab {
  appearance: none;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 14px 13px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .06em;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--speed), border-color var(--speed), background var(--speed);
}

.page-faq .faq-tab__icon {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
}

.page-faq .faq-tab:hover {
  color: var(--c-cyan-soft);
}

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
  background: linear-gradient(180deg, rgba(0, 229, 255, 0), rgba(0, 229, 255, .10));
}

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

.page-faq .faq-panel {
  padding-top: clamp(20px, 3vw, 32px);
}

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

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 6px;
}

.page-faq .faq-panel__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--c-paper);
  padding-left: calc(var(--faq-idx) + var(--faq-gap));
}

.page-faq .faq-list {
  counter-reset: faq;
  border-top: var(--hair);
  margin-top: 10px;
}

.page-faq .faq-item {
  counter-increment: faq;
  border-bottom: var(--hair);
  background: transparent;
  transition: background var(--speed);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(0, 229, 255, .07), rgba(0, 229, 255, 0) 72%);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: var(--faq-idx) minmax(0, 1fr) 20px;
  align-items: start;
  gap: var(--faq-gap);
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-paper);
}

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

.page-faq .faq-q::before {
  content: counter(faq, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-muted);
  padding-top: .42em;
}

.page-faq .faq-item[open] .faq-q::before {
  color: var(--c-orange);
}

.page-faq .faq-q:hover .faq-q__text {
  color: var(--c-cyan);
}

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

.page-faq .faq-q__icon {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: .3em;
  justify-self: end;
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background: var(--c-cyan);
  transition: transform var(--speed), opacity var(--speed);
}

.page-faq .faq-q__icon::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .faq-q__icon::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.page-faq .faq-item[open] .faq-q__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 40px 20px calc(var(--faq-idx) + var(--faq-gap) + 20px);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--faq-text);
}

/* 青训分栏 */
.page-faq .faq-panel__split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-figure {
  margin: 0;
  background: var(--faq-panel);
  border: var(--hair-cyan);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  padding: 13px 16px;
  border-top: var(--hair);
  font-size: var(--fs-micro);
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--c-muted);
}

/* ============ 咨询区 ============ */
.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-help__text {
  margin-top: 14px;
  max-width: 54ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--faq-text);
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-help__cards {
  display: grid;
  gap: 1px;
  background: rgba(108, 122, 156, .3);
  border: var(--hair);
}

.page-faq .faq-contact {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding: 18px 18px 20px;
  background: #0B1428;
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .1em;
  color: var(--c-muted);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--c-cyan);
  word-break: break-all;
}

.page-faq .faq-contact--note .faq-contact__value {
  color: var(--c-lime);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-stat {
    padding: 20px 18px;
    border-left: var(--hair);
  }

  .page-faq .faq-stat:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-faq .faq-panel__split {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: start;
  }

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

  .page-faq .faq-contact--note {
    grid-column: 1 / -1;
  }

  .page-faq .faq-a {
    padding-right: 120px;
  }
}

@media (max-width: 520px) {
  .page-faq {
    --faq-idx: 28px;
    --faq-gap: 10px;
  }

  .page-faq .faq-q {
    font-size: var(--fs-small);
  }

  .page-faq .faq-a {
    padding-right: 0;
  }

  .page-faq .faq-panel__title {
    padding-left: 0;
  }
}