.page-faq {
  --faq-cyan: #00E5FF;
  --faq-lime: #C6FF00;
  --faq-violet: #7A5CFF;
  --faq-card-bg: rgba(22, 33, 43, 0.72);
  --faq-gutter: 16px;
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--faq-gutter) 80px;
  overflow-x: clip;
}

/* ===== 面包屑 ===== */
.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--site-muted);
  margin-bottom: 28px;
  padding-top: 24px;
}

.page-faq .breadcrumb a {
  color: var(--electric-blue);
  text-decoration: none;
  transition: color 0.3s var(--ease-out);
}

.page-faq .breadcrumb a:hover {
  color: var(--faq-lime);
}

.page-faq .breadcrumb-sep {
  color: rgba(138, 148, 160, 0.5);
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 32px 0 40px;
  border-bottom: 1px solid var(--site-line);
  margin-bottom: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 96px;
  height: 3px;
  background: linear-gradient(90deg, var(--faq-lime), var(--faq-cyan));
  clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: 28px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faq-lime);
  background: rgba(198, 255, 0, 0.07);
  border: 1px solid rgba(198, 255, 0, 0.22);
  padding: 6px 14px;
  margin-bottom: 20px;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 100%, 10px 100%);
}

.page-faq .page-title {
  font-family: var(--font-head);
  font-size: clamp(28px, 5.2vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  text-wrap: balance;
}

.page-faq .page-description {
  font-size: 15px;
  line-height: 1.75;
  color: var(--site-muted);
  max-width: 680px;
  margin: 0;
}

.page-faq .faq-hero-side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 8px;
}

.page-faq .faq-hero-stat {
  padding: 16px 12px;
  background: var(--site-bg-alt);
  border: 1px solid var(--site-line);
  position: relative;
  min-width: 0;
}

.page-faq .faq-hero-stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--faq-cyan);
  opacity: 0.7;
}

.page-faq .faq-hero-stat .metric-number {
  display: block;
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--faq-lime);
}

.page-faq .faq-hero-stat .metric-label {
  display: block;
  font-size: 11px;
  color: var(--site-muted);
  margin-top: 8px;
  letter-spacing: 0.04em;
}

.page-faq .faq-hero-ghost {
  position: absolute;
  right: -8px;
  top: 8px;
  font-family: var(--font-num);
  font-size: 96px;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 229, 255, 0.1);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ===== 主布局 ===== */
.page-faq .faq-layout {
  padding-top: 28px;
  display: block;
}

/* ===== 左侧索引 ===== */
.page-faq .faq-index {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--site-line);
  padding-bottom: 20px;
}

.page-faq .faq-index-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-index-title {
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--site-muted);
  margin: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-faq .faq-index-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font-size: 14px;
  line-height: 1.3;
  color: var(--site-text);
  text-decoration: none;
  border: 1px solid var(--site-line);
  background: var(--site-bg-alt);
  transition: border-color 0.3s var(--ease-out), color 0.3s var(--ease-out), background 0.3s var(--ease-out);
}

.page-faq .faq-index-link:hover {
  border-color: rgba(0, 229, 255, 0.5);
  color: var(--faq-cyan);
  background: rgba(0, 229, 255, 0.04);
}

.page-faq .faq-index-num {
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--faq-cyan);
  min-width: 24px;
  text-align: right;
}

.page-faq .faq-index-link--plain {
  border-style: dashed;
  border-color: rgba(255, 255, 255, 0.14);
  background: transparent;
  align-self: flex-start;
}

.page-faq .faq-index .btn-base {
  align-self: flex-start;
}

/* ===== 内容区 ===== */
.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-section {
  margin-bottom: 64px;
  scroll-margin-top: 24px;
}

.page-faq .faq-section:last-child {
  margin-bottom: 0;
}

.page-faq .faq-section-header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--site-line);
  position: relative;
}

.page-faq .faq-section-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 56px;
  background: linear-gradient(90deg, var(--faq-cyan), transparent);
}

.page-faq .faq-section-header .section-index {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: var(--faq-cyan);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-faq .faq-section-header h2 {
  font-family: var(--font-head);
  font-size: 22px;
  line-height: 1.25;
  margin: 0;
  letter-spacing: -0.01em;
}

/* ===== 图片 ===== */
.page-faq .image-frame {
  border: 1px solid var(--site-line);
  overflow: hidden;
  margin: 0 0 24px;
  position: relative;
  background: var(--site-bg-alt);
}

.page-faq .image-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.4s var(--ease-out);
}

.page-faq .image-frame:hover img {
  transform: scale(1.012);
}

.page-faq .image-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 64px;
  height: 3px;
  background: var(--faq-lime);
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
}

.page-faq .faq-image {
  margin-top: 4px;
}

/* ===== 伤停标签 ===== */
.page-faq .faq-injury-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  padding: 14px 16px;
  background: var(--site-bg-alt);
  border: 1px solid var(--site-line);
}

.page-faq .faq-injury-tags .issue-tag {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border: 1px solid transparent;
}

.page-faq .faq-injury-tags .issue-tag--violet {
  border-color: rgba(122, 92, 255, 0.35);
  background: rgba(122, 92, 255, 0.08);
}

.page-faq .faq-injury-tags .issue-tag--lime {
  border-color: rgba(198, 255, 0, 0.35);
  background: rgba(198, 255, 0, 0.08);
}

.page-faq .faq-injury-tags .issue-tag--cyan {
  border-color: rgba(0, 229, 255, 0.35);
  background: rgba(0, 229, 255, 0.08);
}

/* ===== 数据统计条 ===== */
.page-faq .faq-stats-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.page-faq .faq-stats-band .data-glass-card {
  padding: 20px 12px;
  background: var(--faq-card-bg);
  border: 1px solid rgba(0, 229, 255, 0.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  text-align: center;
  position: relative;
  transition: border-color 0.3s var(--ease-out);
}

.page-faq .faq-stats-band .data-glass-card:hover {
  border-color: rgba(0, 229, 255, 0.4);
}

.page-faq .faq-stats-band .data-glass-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--faq-cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}

.page-faq .faq-stats-band .data-glass-card:hover::after {
  opacity: 1;
}

.page-faq .faq-stats-band .metric-number {
  display: block;
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  color: var(--faq-lime);
}

.page-faq .faq-stats-band .metric-label {
  display: block;
  font-size: 11px;
  color: var(--site-muted);
  margin-top: 8px;
  letter-spacing: 0.05em;
}

/* ===== 可展开面板 ===== */
.page-faq .expandable-group,
.page-faq details.expandable-panel {
  border: 1px solid var(--site-line);
  background: var(--site-bg-alt);
}

.page-faq .expandable-panel {
  border-radius: 0;
  border-bottom: 1px solid var(--site-line);
  position: relative;
  transition: border-color 0.3s var(--ease-out);
}

.page-faq .expandable-panel:last-child {
  border-bottom: none;
}

.page-faq .expandable-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--faq-cyan), var(--faq-lime));
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}

.page-faq .expandable-panel:hover::before,
.page-faq .expandable-panel[open]::before {
  opacity: 1;
}

.page-faq details.expandable-panel summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 16px;
  transition: background 0.3s var(--ease-out);
  user-select: none;
}

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

.page-faq details.expandable-panel summary:hover {
  background: var(--site-card);
}

.page-faq details.expandable-panel[open] summary {
  background: var(--site-card);
  border-bottom: 1px solid var(--site-line);
}

.page-faq .faq-q-num {
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 700;
  color: var(--faq-lime);
  background: rgba(198, 255, 0, 0.08);
  border: 1px solid rgba(198, 255, 0, 0.18);
  padding: 4px 8px;
  min-width: 42px;
  text-align: center;
  flex-shrink: 0;
  line-height: 1.2;
}

.page-faq .faq-q-text {
  font-family: var(--font-head);
  font-size: 15px;
  line-height: 1.45;
  flex: 1;
  min-width: 0;
}

.page-faq .faq-q-arrow {
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--faq-cyan);
  border-bottom: 2px solid var(--faq-cyan);
  transform: rotate(45deg);
  transition: transform 0.3s var(--ease-out);
  flex-shrink: 0;
  margin-right: 4px;
}

.page-faq details.expandable-panel[open] .faq-q-arrow {
  transform: rotate(-135deg);
}

.page-faq .expandable-content {
  padding: 18px 18px 26px;
  color: var(--site-muted);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .expandable-content p {
  margin: 0 0 12px;
}

.page-faq .expandable-content p:last-child {
  margin-bottom: 0;
}

.page-faq .expandable-content a {
  color: var(--faq-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: color 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}

.page-faq .expandable-content a:hover {
  color: var(--faq-lime);
  border-color: rgba(198, 255, 0, 0.5);
}

/* ===== 联系卡片 ===== */
.page-faq .faq-contact-card {
  margin-top: 28px;
  padding: 28px 24px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.07), rgba(198, 255, 0, 0.03) 55%, rgba(122, 92, 255, 0.05));
  border: 1px solid rgba(0, 229, 255, 0.18);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--faq-cyan), var(--faq-lime), var(--faq-violet));
}

.page-faq .faq-contact-label {
  font-family: var(--font-head);
  font-size: 20px;
  color: var(--site-text);
  margin: 0 0 6px;
}

.page-faq .faq-contact-desc {
  font-size: 14px;
  color: var(--site-muted);
  margin: 0 0 20px;
  line-height: 1.6;
}

.page-faq .faq-contact-card .btn-base {
  display: inline-flex;
  text-decoration: none;
}

/* ===== 入场过渡（渐进增强） ===== */
.page-faq [data-reveal] {
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}

.page-faq [data-reveal][data-visible] {
  opacity: 1;
  transform: none;
}

/* ===== 桌面端 ===== */
@media (min-width: 960px) {
  .page-faq {
    --faq-gutter: 36px;
    padding-top: 8px;
  }

  .page-faq .breadcrumb {
    padding-top: 32px;
    margin-bottom: 36px;
  }

  .page-faq .faq-hero {
    padding: 48px 0 52px;
  }

  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1fr) 312px;
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-hero-side {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 0;
  }

  .page-faq .faq-hero-stat .metric-number {
    font-size: 34px;
  }

  .page-faq .faq-hero-ghost {
    font-size: 156px;
    right: 24px;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 52px;
    padding-top: 44px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 36px;
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
  }

  .page-faq .faq-index-inner {
    gap: 4px;
  }

  .page-faq .faq-index-title {
    margin-bottom: 12px;
    font-size: 13px;
  }

  .page-faq .faq-index-nav {
    flex-direction: column;
    gap: 2px;
    flex-wrap: nowrap;
  }

  .page-faq .faq-index-link {
    padding: 11px 18px;
    border: none;
    border-left: 3px solid transparent;
    background: transparent;
    font-size: 15px;
  }

  .page-faq .faq-index-link:hover {
    background: var(--site-bg-alt);
    border-left-color: var(--faq-cyan);
    color: var(--faq-cyan);
  }

  .page-faq .faq-index-link--plain {
    border-bottom: 1px dashed rgba(255, 255, 255, 0.14);
  }

  .page-faq .faq-index .btn-base {
    margin-top: 18px;
    align-self: stretch;
    text-align: center;
    justify-content: center;
  }

  .page-faq .faq-content {
    padding-right: 8px;
  }

  .page-faq .faq-section {
    margin-bottom: 84px;
  }

  .page-faq .faq-section-header {
    margin-bottom: 28px;
  }

  .page-faq .faq-section-header h2 {
    font-size: 26px;
  }

  .page-faq .faq-q-text {
    font-size: 16px;
  }

  .page-faq .expandable-content {
    padding: 20px 28px 30px;
    font-size: 15px;
  }

  .page-faq .faq-stats-band {
    gap: 14px;
  }

  .page-faq .faq-stats-band .data-glass-card {
    padding: 28px 16px;
  }

  .page-faq .faq-stats-band .metric-number {
    font-size: 44px;
  }

  .page-faq .faq-contact-card {
    padding: 40px 32px;
    margin-top: 36px;
  }

  .page-faq .faq-contact-label {
    font-size: 24px;
  }
}

/* ===== 超宽屏 ===== */
@media (min-width: 1440px) {
  .page-faq .faq-layout {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 68px;
  }

  .page-faq .faq-content {
    padding-right: 32px;
  }
}