.page-faq {
  background: var(--ink-900);
  color: var(--text-hi);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏：现象入口 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 44px;
  background:
    radial-gradient(120% 100% at 6% 0%, rgba(60, 124, 255, 0.20), transparent 58%),
    radial-gradient(90% 84% at 96% 2%, rgba(47, 240, 214, 0.14), transparent 60%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 132px;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 106, 61, 0));
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 24px;
  font-size: 13px;
}

.page-faq .display {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(27px, 6.6vw, 50px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--text-hi);
}

.page-faq .faq-hero .lede {
  margin-top: 18px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-faq .faq-snapshot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 32px;
}

.page-faq .snap {
  position: relative;
  min-width: 0;
  padding: 18px 20px 18px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(19, 34, 65, 0.92), rgba(7, 14, 34, 0.88));
  box-shadow: var(--shadow-card);
}

.page-faq .snap::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--cyan);
}

.page-faq .snap:nth-child(2)::before { background: var(--blue); }
.page-faq .snap:nth-child(3)::before { background: var(--orange); }

.page-faq .snap-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 4.8vw, 25px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-faq .snap-label {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-mid);
}

/* ---------- 现象索引 ---------- */
.page-faq .faq-index-block {
  padding: 38px 0 0;
}

.page-faq .faq-index-heading {
  margin: 0 0 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-low);
}

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

.page-faq .faq-index a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px 9px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-index .idx-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  transition: color 0.18s ease;
}

.page-faq .faq-index a:hover .idx-num,
.page-faq .faq-index a:focus-visible .idx-num {
  color: var(--ink-900);
}

/* ---------- 视觉带 ---------- */
.page-faq .faq-visual-block {
  padding: 34px 0 0;
}

.page-faq .faq-visual {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: var(--shadow-card);
}

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

.page-faq .faq-visual .media-caption,
.page-faq .faq-report-visual .media-caption {
  margin: 0;
  padding: 12px 18px;
  background: var(--ink-800);
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-low);
}

/* ---------- 排查条目 ---------- */
.page-faq .faq-list-block {
  padding: 52px 0 0;
}

.page-faq .faq-list-block .section-title {
  margin: 10px 0 0;
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-faq .faq-list-block .section-lede {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-mid);
}

.page-faq .accordion {
  margin-top: 26px;
}

.page-faq .accordion-item {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(12, 23, 48, 0.92), rgba(7, 14, 34, 0.94));
  overflow: hidden;
  scroll-margin-top: 96px;
  transition: border-color 0.2s ease;
}

.page-faq .accordion-item[data-open] {
  border-color: var(--cyan-line);
}

.page-faq .accordion-heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 18px 18px;
  border: 0;
  background: transparent;
  color: var(--text-hi);
  font-family: inherit;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.18s ease;
}

.page-faq .accordion-trigger:hover {
  background: rgba(47, 240, 214, 0.06);
}

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

.page-faq .acc-num {
  flex: none;
  min-width: 32px;
  padding: 2px 0;
  border: 1px solid var(--cyan-line);
  border-radius: var(--radius-pill);
  background: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  text-align: center;
  color: var(--cyan);
}

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

.page-faq .accordion-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  color: var(--cyan);
  font-size: 19px;
  line-height: 1;
  transition: transform 0.22s ease;
}

.page-faq .accordion-item[data-open] .accordion-icon {
  transform: rotate(45deg);
}

.page-faq .accordion-panel {
  padding: 0 18px 20px 18px;
}

.page-faq .faq-symptom,
.page-faq .faq-action {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-mid);
}

.page-faq .faq-action {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 9px;
  border-radius: var(--radius-pill);
  background: var(--cyan);
  color: var(--ink-900);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  vertical-align: 1px;
}

.page-faq .faq-tag-accent {
  background: var(--orange);
  color: var(--ink-900);
}

.page-faq .faq-steps {
  counter-reset: step;
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 38px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-mid);
  counter-increment: step;
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 1px 6px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--blue);
}

/* ---------- 上报与联系 ---------- */
.page-faq .faq-report {
  padding: 56px 0 64px;
}

.page-faq .faq-report-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-report-intro .section-title {
  margin: 10px 0 0;
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.page-faq .faq-report-intro .section-lede {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-mid);
}

.page-faq .prep-steps {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .prep-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(12, 23, 48, 0.6);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-mid);
}

.page-faq .prep-dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 9px;
  border-radius: 2px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(47, 240, 214, 0.12);
}

.page-faq .contact-card {
  padding: 22px 20px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(47, 240, 214, 0.13), transparent 58%),
    linear-gradient(160deg, rgba(19, 34, 65, 0.96), rgba(7, 14, 34, 0.96));
  box-shadow: var(--shadow-card);
}

.page-faq .contact-card-title {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .contact-line {
  display: grid;
  gap: 3px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .contact-line .contact-label {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-low);
}

.page-faq .contact-line .contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-hi);
  word-break: break-word;
}

.page-faq .contact-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-mid);
}

.page-faq .contact-cta {
  margin-top: 18px;
  width: 100%;
}

.page-faq .faq-report-visual {
  margin: 22px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-faq .faq-related {
  margin: 34px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-mid);
}

.page-faq .faq-related a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

.page-faq .faq-related a:hover,
.page-faq .faq-related a:focus-visible {
  color: var(--text-hi);
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 44px 0 54px;
  }

  .page-faq .faq-snapshot {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-index-block {
    padding-top: 44px;
  }

  .page-faq .faq-visual-block {
    padding-top: 40px;
  }

  .page-faq .faq-list-block {
    padding-top: 64px;
  }

  .page-faq .accordion-trigger {
    padding: 22px 26px;
    font-size: 16.5px;
  }

  .page-faq .accordion-panel {
    padding: 0 26px 24px 26px;
  }

  .page-faq .contact-card {
    padding: 26px 26px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-report-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-report {
    padding: 72px 0 82px;
  }

  .page-faq .faq-related {
    margin-top: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion-icon,
  .page-faq .faq-index a,
  .page-faq .accordion-trigger {
    transition: none;
  }
}