.page-faq {
  --faq-timeline-width: 3.5rem;
  --faq-dot-size: 1rem;
  --faq-line-color: var(--color-border-green, rgba(57,255,20,0.3));
  --faq-line-color-strong: var(--color-accent-green, #39FF14);
  --faq-index-glow: var(--color-glow-green, rgba(57,255,20,0.2));
  --faq-bg-card: var(--color-bg-card, #0A192F);
  --faq-text-muted: var(--color-text-secondary, #8892B0);
  --faq-accent-orange: var(--color-accent-orange, #FF6F00);
  display: block;
  width: 100%;
  max-width: 100%;
  padding: 0 1rem 3rem;
  box-sizing: border-box;
  color: var(--color-text-primary, #F5F5F5);
  background: var(--color-bg-primary, #0B1D3A);
  font-family: Inter, sans-serif;
}

/* 顶部区域 */
.page-faq .faq-hero {
  padding: 2rem 0 1.5rem;
  border-bottom: 1px solid var(--faq-line-color);
  margin-bottom: 2.5rem;
}
.page-faq .breadcrumb {
  font-size: 0.8rem;
  color: var(--faq-text-muted);
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.page-faq .breadcrumb a {
  color: var(--faq-line-color-strong);
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--faq-accent-orange);
  outline: 2px solid var(--color-focus-outline, #39FF14);
  outline-offset: 2px;
}
.page-faq .breadcrumb-sep {
  color: var(--faq-text-muted);
  margin: 0 0.2rem;
}
.page-faq .faq-hero-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
.page-faq .faq-hero-text {
  flex: 1 1 auto;
}
.page-faq .faq-hero-title {
  font-family: Anton, sans-serif;
  font-size: clamp(2.8rem, 10vw, 5rem);
  line-height: 1.05;
  text-transform: uppercase;
  color: var(--color-text-primary, #F5F5F5);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
  word-break: break-word;
}
.page-faq .faq-hero-desc {
  font-size: 1.05rem;
  color: var(--faq-text-muted);
  max-width: 32rem;
  line-height: 1.6;
  margin: 0;
}
.page-faq .faq-hero-visual {
  flex: 0 0 auto;
  width: 100%;
  max-width: 28rem;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--faq-line-color);
  box-shadow: 0 0 20px var(--faq-index-glow);
}
.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 搜索框 */
.page-faq .faq-search-wrap {
  position: relative;
  margin-top: 1.5rem;
  max-width: 30rem;
}
.page-faq .faq-search-input {
  display: block;
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.8rem;
  font-family: Inter, sans-serif;
  font-size: 1rem;
  color: var(--color-text-primary, #F5F5F5);
  background: var(--faq-bg-card);
  border: 1px solid var(--faq-line-color);
  border-radius: 0.35rem;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
  box-sizing: border-box;
}
.page-faq .faq-search-input::placeholder {
  color: var(--faq-text-muted);
  opacity: 0.7;
}
.page-faq .faq-search-input:focus {
  border-color: var(--faq-line-color-strong);
  box-shadow: 0 0 0 3px var(--faq-index-glow);
}
.page-faq .faq-search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.3rem;
  color: var(--faq-text-muted);
  pointer-events: none;
}

/* 时间轴板块共用 */
.page-faq .faq-timeline-section {
  margin-bottom: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--faq-line-color);
}
.page-faq .faq-section-title {
  font-family: Anton, sans-serif;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  margin: 0 0 0.3rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  color: var(--color-text-primary, #F5F5F5);
}
.page-faq .section-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--faq-line-color-strong);
  opacity: 0.9;
  text-shadow: 0 0 8px var(--faq-index-glow);
}
.page-faq .faq-section-desc {
  color: var(--faq-text-muted);
  font-size: 1rem;
  margin: 0.2rem 0 1.8rem;
  max-width: 32rem;
  line-height: 1.5;
}

/* 时间轴容器 */
.page-faq .timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 0;
}

/* 每个条目 */
.page-faq .timeline-item {
  display: flex;
  gap: 1rem;
  position: relative;
  padding-bottom: 1.2rem;
}
.page-faq .timeline-item:last-child {
  padding-bottom: 0;
}

/* 左侧索引区 */
.page-faq .timeline-left {
  flex: 0 0 var(--faq-timeline-width);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  padding-top: 0.15rem;
}
.page-faq .timeline-left::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--faq-line-color);
  transform: translateX(-50%);
  z-index: 0;
}
.page-faq .timeline-item:last-child .timeline-left::before {
  bottom: 100%;
}
.page-faq .timeline-dot {
  position: relative;
  z-index: 1;
  width: var(--faq-dot-size);
  height: var(--faq-dot-size);
  border-radius: 50%;
  background: var(--faq-line-color-strong);
  box-shadow: 0 0 10px var(--faq-index-glow);
  flex-shrink: 0;
  margin-bottom: 0.3rem;
  transition: transform 0.25s, box-shadow 0.25s;
}
.page-faq .timeline-item:hover .timeline-dot {
  transform: scale(1.25);
  box-shadow: 0 0 18px var(--faq-index-glow);
}
.page-faq .timeline-idx {
  position: relative;
  z-index: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--faq-line-color-strong);
  text-shadow: 0 0 6px var(--faq-index-glow);
  letter-spacing: 0.04em;
  background: var(--color-bg-primary, #0B1D3A);
  padding: 0 0.2rem;
}

/* 右侧内容 */
.page-faq .timeline-right {
  flex: 1 1 auto;
  min-width: 0;
  padding-top: 0.1rem;
}
.page-faq .timeline-details {
  display: block;
  background: var(--faq-bg-card);
  border: 1px solid var(--faq-line-color);
  border-radius: 0.35rem;
  transition: border-color 0.25s, box-shadow 0.25s;
  overflow: hidden;
}
.page-faq .timeline-details[open] {
  border-color: var(--faq-line-color-strong);
  box-shadow: 0 0 12px var(--faq-index-glow);
}
.page-faq .timeline-item:hover .timeline-details {
  border-color: rgba(57,255,20,0.5);
}
.page-faq .timeline-question {
  display: block;
  padding: 0.85rem 1.2rem;
  font-family: Inter, sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary, #F5F5F5);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s, background 0.2s;
  position: relative;
}
.page-faq .timeline-question::-webkit-details-marker {
  display: none;
}
.page-faq .timeline-question::before {
  content: '+';
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--faq-line-color-strong);
  margin-right: 0.6rem;
  transition: transform 0.3s;
  display: inline-block;
}
.page-faq .timeline-details[open] .timeline-question::before {
  content: '−';
  transform: rotate(0deg);
}
.page-faq .timeline-question:hover,
.page-faq .timeline-question:focus-visible {
  color: var(--faq-accent-orange);
  background: rgba(57,255,20,0.04);
  outline: none;
}
.page-faq .timeline-details[open] .timeline-question {
  color: var(--faq-line-color-strong);
  border-bottom: 1px solid var(--faq-line-color);
}
.page-faq .timeline-answer {
  padding: 0.85rem 1.2rem 1.1rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-primary, #F5F5F5);
  border-top: 1px solid transparent;
}
.page-faq .timeline-answer a {
  color: var(--faq-line-color-strong);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}
.page-faq .timeline-answer a:hover,
.page-faq .timeline-answer a:focus-visible {
  color: var(--faq-accent-orange);
  outline: 2px solid var(--color-focus-outline, #39FF14);
  outline-offset: 2px;
}
.page-faq .highlight {
  color: var(--faq-line-color-strong);
  text-shadow: 0 0 6px var(--faq-index-glow);
  font-weight: 600;
}

/* 移动端帮助区特殊布局 */
.page-faq .faq-mobile-header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}
.page-faq .faq-mobile-text {
  flex: 1 1 auto;
}
.page-faq .faq-mobile-pic {
  flex: 0 0 auto;
  width: 100%;
  max-width: 10rem;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--faq-line-color);
  box-shadow: 0 0 20px var(--faq-index-glow);
}
.page-faq .faq-mobile-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 内部链接区 */
.page-faq .faq-internal-links {
  margin-top: 3rem;
  padding: 1.8rem 1.5rem;
  background: var(--faq-bg-card);
  border: 1px solid var(--faq-line-color);
  border-radius: 0.5rem;
  text-align: center;
}
.page-faq .faq-links-label {
  font-size: 1rem;
  color: var(--faq-text-muted);
  margin: 0 0 1rem;
  font-weight: 500;
}
.page-faq .faq-links-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.page-faq .faq-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.6rem;
  font-family: Inter, sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary, #F5F5F5);
  background: transparent;
  border: 2px solid var(--faq-line-color-strong);
  border-radius: 0.35rem;
  text-decoration: none;
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
  cursor: pointer;
}
.page-faq .faq-link-btn:hover,
.page-faq .faq-link-btn:focus-visible {
  background: var(--faq-line-color-strong);
  color: var(--color-bg-primary, #0B1D3A);
  box-shadow: 0 0 20px var(--faq-index-glow);
  outline: none;
}
.page-faq .faq-link-btn:focus-visible {
  outline: 2px solid var(--color-focus-outline, #39FF14);
  outline-offset: 3px;
}

/* 动效：滚动显现 */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.page-faq [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 桌面端 */
@media (min-width: 768px) {
  .page-faq {
    padding: 0 2rem 4rem;
  }
  .page-faq .faq-hero-layout {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-faq .faq-hero-visual {
    width: 48%;
    max-width: 32rem;
  }
  .page-faq .faq-hero-title {
    font-size: clamp(3.5rem, 7vw, 5.5rem);
  }
  .page-faq .faq-timeline-section {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .page-faq .timeline-item {
    gap: 1.5rem;
    padding-bottom: 1.5rem;
  }
  .page-faq .timeline-left {
    flex: 0 0 4rem;
  }
  .page-faq .timeline-idx {
    font-size: 0.85rem;
  }
  .page-faq .timeline-question {
    padding: 0.95rem 1.5rem;
    font-size: 1.05rem;
  }
  .page-faq .timeline-answer {
    padding: 0.95rem 1.5rem 1.2rem;
    font-size: 1rem;
  }
  .page-faq .faq-mobile-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-faq .faq-mobile-pic {
    max-width: 8rem;
  }
  .page-faq .faq-internal-links {
    padding: 2rem 2.5rem;
  }
  .page-faq .faq-links-group {
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding: 0 3rem 5rem;
    max-width: 1280px;
    margin: 0 auto;
  }
  .page-faq .faq-hero {
    padding: 3rem 0 2rem;
    margin-bottom: 3rem;
  }
  .page-faq .faq-timeline-section {
    padding-left: 2rem;
    padding-right: 2rem;
  }
  .page-faq .timeline-left {
    flex: 0 0 4.5rem;
  }
  .page-faq .faq-mobile-pic {
    max-width: 9rem;
  }
}