.page-faq {
  background: var(--ink-900);
  color: var(--text-hi);
  padding-bottom: clamp(40px, 8vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(24px, 5vw, 52px) clamp(28px, 5vw, 56px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.6vw, 3.75rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--text-hi);
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 88px;
  height: 6px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

.page-faq .faq-hero__lede {
  margin: 0 0 26px;
  max-width: 47ch;
  color: var(--text-dim);
  font-size: 1.0625rem;
  line-height: 1.8;
}

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

.page-faq .faq-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 78% 16%, rgba(40, 224, 255, 0.22), transparent 60%);
  pointer-events: none;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-faq .faq-media__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  padding-block: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-index__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  margin-bottom: 20px;
}

.page-faq .faq-index__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-faq .faq-index__sub {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.7;
}

.page-faq .faq-index__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-card {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 8px;
  padding: 18px 16px;
  border: 2px solid var(--line);
  background: var(--ink-800);
  color: var(--text-hi);
  text-decoration: none;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.45);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-card:hover,
.page-faq .faq-card:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--cyan);
  background: var(--ink-700);
  outline: none;
}

.page-faq .faq-card:focus-visible {
  box-shadow: 0 0 0 3px var(--cyan), 6px 6px 0 rgba(0, 0, 0, 0.45);
}

.page-faq .faq-card__num {
  color: var(--orange);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}

.page-faq .faq-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.4;
}

.page-faq .faq-card__desc {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.65;
}

.page-faq .faq-card__count {
  color: var(--cyan);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  padding-block: clamp(34px, 6vw, 68px);
}

.page-faq .faq-head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-head .lede {
  max-width: 54ch;
}

.page-faq .faq-acc {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: 2px solid var(--line);
  background: var(--ink-800);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.45);
  transition: border-color 0.2s var(--ease);
}

.page-faq .faq-item:focus-within {
  border-color: var(--cyan);
}

.page-faq .faq-trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 16px;
  border: 0;
  background: transparent;
  color: var(--text-hi);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-trigger:hover {
  color: var(--cyan);
  background: rgba(40, 224, 255, 0.05);
}

.page-faq .faq-trigger__num {
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--orange);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.page-faq .faq-trigger__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-trigger__mark {
  flex: 0 0 auto;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1px solid var(--line);
}

.page-faq .faq-trigger__mark::before,
.page-faq .faq-trigger__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .faq-trigger__mark::before {
  left: 3px;
  right: 3px;
  top: 6px;
  height: 2px;
}

.page-faq .faq-trigger__mark::after {
  top: 3px;
  bottom: 3px;
  left: 6px;
  width: 2px;
}

.page-faq .faq-trigger[aria-expanded="true"] .faq-trigger__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

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

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

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.94rem;
  line-height: 1.72;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.95;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* ---------- 排查配图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
  border: 2px solid var(--line);
  background: var(--ink-900);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

/* ---------- 联系条 ---------- */
.page-faq .faq-contact-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 24px;
  padding: 20px;
  border: 2px solid var(--cyan);
  background: linear-gradient(135deg, var(--cyan-deep), var(--ink-800) 65%);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-contact-bar__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-hi);
}

.page-faq .faq-contact-bar__text {
  margin: 0;
  max-width: 60ch;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-contact-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-figure {
    max-width: 620px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-faq .faq-trigger {
    padding: 18px 20px;
    font-size: 1.05rem;
  }

  .page-faq .faq-panel {
    padding: 18px 20px 24px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-trigger,
  .page-faq .faq-item,
  .page-faq .faq-trigger__mark::before,
  .page-faq .faq-trigger__mark::after {
    transition: none;
  }

  .page-faq .faq-card:hover,
  .page-faq .faq-card:focus-visible {
    transform: none;
  }
}