.page-products {
  --pp-bg-dark: #0B1026;
  --pp-bg-medium: #151A3A;
  --pp-bg-light: #1E2450;
  --pp-primary: #FF6600;
  --pp-primary-hover: #FF8533;
  --pp-purple: #8B5CF6;
  --pp-text-primary: #E5E7EB;
  --pp-text-secondary: #9CA3AF;
  --pp-text-muted: #6B7280;
  --pp-success: #10B981;
  --pp-error: #EF4444;
  --pp-gap: 24px;
  --pp-radius: 12px;
  --pp-transition: 0.35s ease;
  display: block;
  width: 100%;
  min-height: 100vh;
  background: var(--pp-bg-dark);
  color: var(--pp-text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
}

/* ===== 面包屑 ===== */
.page-products__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--pp-text-muted);
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.page-products__breadcrumb a {
  color: var(--pp-primary);
  text-decoration: none;
  transition: color var(--pp-transition);
}
.page-products__breadcrumb a:hover,
.page-products__breadcrumb a:focus {
  color: var(--pp-primary-hover);
  outline: 2px solid var(--pp-primary);
  outline-offset: 2px;
}
.page-products__bread-sep {
  color: var(--pp-text-muted);
}
.page-products__bread-current {
  color: var(--pp-text-secondary);
}

/* ===== 左右分屏布局 ===== */
.page-products__split {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 左侧深色区域 ===== */
.page-products__left {
  background: linear-gradient(160deg, #0B1026 0%, #151A3A 100%);
  padding: 48px 24px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--pp-primary);
}
.page-products__left::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 120px; height: 120px;
  background: var(--pp-primary);
  opacity: 0.08;
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}
.page-products__app-hero {
  text-align: center;
  position: relative;
  z-index: 1;
}
.page-products__app-icon-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 20px;
}
.page-products__app-icon {
  display: block;
  border-radius: 28px;
  box-shadow: 0 0 30px rgba(255, 102, 0, 0.25);
  max-width: 100%;
  height: auto;
  object-fit: contain;
  position: relative;
  z-index: 1;
}
.page-products__icon-glow {
  position: absolute;
  inset: -12px;
  border-radius: 40px;
  background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.25), transparent 70%);
  z-index: 0;
  animation: pp-pulse 3s ease-in-out infinite alternate;
}
@keyframes pp-pulse {
  0% { opacity: 0.5; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.05); }
}
.page-products__badge-version {
  display: inline-block;
  background: linear-gradient(135deg, var(--pp-purple), var(--pp-primary));
  color: #fff;
  font-weight: 800;
  font-size: 1.5rem;
  padding: 4px 20px;
  border-radius: 30px;
  letter-spacing: 2px;
  margin-bottom: 16px;
  box-shadow: 0 0 20px rgba(255, 102, 0, 0.3);
}
.page-products__hero-title {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 2rem;
  color: #fff;
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}
.page-products__hero-sub {
  font-size: 1rem;
  color: var(--pp-text-secondary);
  margin: 0 0 24px;
}
.page-products__version-deco {
  max-width: 300px;
  margin: 0 auto;
}
.page-products__deco-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  opacity: 0.7;
}

/* ===== 右侧区域 ===== */
.page-products__right {
  flex: 1;
  position: relative;
  padding: 32px 20px 48px;
  overflow: hidden;
}
.page-products__right-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.08;
  pointer-events: none;
}
.page-products__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-products__right-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto;
}

/* ===== 通用章节 ===== */
.page-products__section {
  margin-bottom: 48px;
}
.page-products__section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: #fff;
  margin: 0 0 24px;
  letter-spacing: -0.3px;
}
.page-products__title-line {
  display: inline-block;
  width: 40px;
  height: 4px;
  background: linear-gradient(135deg, var(--pp-purple), var(--pp-primary));
  border-radius: 2px;
  flex-shrink: 0;
}

/* ===== 版本卡片（可展开） ===== */
.page-products__version-card {
  background: var(--pp-bg-medium);
  border-radius: var(--pp-radius);
  border: 1px solid rgba(255, 102, 0, 0.2);
  overflow: hidden;
  transition: box-shadow var(--pp-transition);
}
.page-products__version-card:hover {
  box-shadow: 0 0 24px rgba(255, 102, 0, 0.12);
}
.page-products__version-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  cursor: pointer;
  user-select: none;
  transition: background var(--pp-transition);
}
.page-products__version-header:hover,
.page-products__version-header:focus {
  background: rgba(255, 102, 0, 0.06);
  outline: none;
}
.page-products__version-header:focus-visible {
  outline: 2px solid var(--pp-primary);
  outline-offset: -2px;
}
.page-products__version-num {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--pp-primary);
}
.page-products__version-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.page-products__version-arrow {
  margin-left: auto;
  font-size: 0.875rem;
  color: var(--pp-text-muted);
  transition: transform var(--pp-transition);
}
.page-products__version-header[aria-expanded="true"] .page-products__version-arrow {
  transform: rotate(90deg);
}
.page-products__version-body {
  padding: 0 24px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.page-products__changelog {
  list-style: none;
  padding: 16px 0 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-products__changelog li {
  position: relative;
  padding-left: 20px;
  color: var(--pp-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
}
.page-products__changelog li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--pp-primary);
  font-weight: 700;
}

/* ===== 通道问题卡片网格 ===== */
.page-products__channel-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page-products__channel-card {
  background: var(--pp-bg-medium);
  border-radius: var(--pp-radius);
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  transition: border-color var(--pp-transition), box-shadow var(--pp-transition);
}
.page-products__channel-card:hover {
  border-color: rgba(255, 102, 0, 0.25);
  box-shadow: 0 0 20px rgba(255, 102, 0, 0.06);
}
.page-products__card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  cursor: pointer;
  user-select: none;
  transition: background var(--pp-transition);
}
.page-products__card-header:hover,
.page-products__card-header:focus {
  background: rgba(255, 102, 0, 0.04);
  outline: none;
}
.page-products__card-header:focus-visible {
  outline: 2px solid var(--pp-primary);
  outline-offset: -2px;
}
.page-products__card-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  margin: 0;
  flex: 1;
}
.page-products__card-toggle {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--pp-primary);
  transition: transform var(--pp-transition);
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}
.page-products__card-header[aria-expanded="true"] .page-products__card-toggle {
  transform: rotate(45deg);
}
.page-products__card-body {
  padding: 0 24px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--pp-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}
.page-products__card-body p {
  margin: 16px 0 12px;
}
.page-products__card-img-wrap {
  margin-top: 12px;
  border-radius: 8px;
  overflow: hidden;
  max-width: 400px;
}
.page-products__card-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
}

/* ===== 时间轴 / 版本历史 ===== */
.page-products__timeline {
  position: relative;
  padding-left: 28px;
}
.page-products__timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--pp-purple), var(--pp-primary));
  border-radius: 1px;
}
.page-products__timeline-item {
  position: relative;
  margin-bottom: 28px;
}
.page-products__timeline-item:last-child {
  margin-bottom: 0;
}
.page-products__timeline-dot {
  position: absolute;
  left: -22px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--pp-primary);
  border: 2px solid var(--pp-bg-dark);
  box-shadow: 0 0 8px rgba(255, 102, 0, 0.3);
  z-index: 1;
}
.page-products__timeline-content {
  background: var(--pp-bg-medium);
  border-radius: var(--pp-radius);
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: border-color var(--pp-transition);
}
.page-products__timeline-content:hover {
  border-color: rgba(255, 102, 0, 0.2);
}
.page-products__timeline-version {
  display: inline-block;
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--pp-primary);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.page-products__timeline-desc {
  margin: 0;
  color: var(--pp-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===== 底部引导 ===== */
.page-products__bottom-guide {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
}
.page-products__guide-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  margin: 0 auto 16px;
  opacity: 0.6;
}
.page-products__guide-text {
  color: var(--pp-text-secondary);
  font-size: 0.9375rem;
  margin: 0;
}
.page-products__guide-link {
  color: var(--pp-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--pp-transition);
}
.page-products__guide-link:hover,
.page-products__guide-link:focus {
  color: var(--pp-primary-hover);
  text-decoration: underline;
  outline: 2px solid var(--pp-primary);
  outline-offset: 2px;
}

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .page-products__left {
    padding: 36px 20px 32px;
  }
  .page-products__hero-title {
    font-size: 1.5rem;
  }
  .page-products__badge-version {
    font-size: 1.25rem;
    padding: 3px 16px;
  }
  .page-products__right {
    padding: 24px 16px 40px;
  }
  .page-products__section-title {
    font-size: 1.25rem;
  }
  .page-products__version-header,
  .page-products__card-header {
    padding: 14px 18px;
  }
  .page-products__version-body,
  .page-products__card-body {
    padding-left: 18px;
    padding-right: 18px;
  }
  .page-products__timeline {
    padding-left: 24px;
  }
  .page-products__timeline-dot {
    left: -18px;
    width: 10px;
    height: 10px;
  }
  .page-products__timeline-content {
    padding: 12px 16px;
  }
  .page-products__card-img-wrap {
    max-width: 100%;
  }
}

@media (min-width: 768px) {
  .page-products__split {
    flex-direction: row;
  }
  .page-products__left {
    width: 380px;
    min-height: 100vh;
    border-bottom: none;
    border-right: 2px solid var(--pp-primary);
    padding: 80px 32px 60px;
    flex-shrink: 0;
    align-items: flex-start;
  }
  .page-products__left::after {
    width: 180px;
    height: 180px;
  }
  .page-products__app-hero {
    text-align: left;
  }
  .page-products__version-deco {
    margin: 0;
  }
  .page-products__hero-title {
    font-size: 2.25rem;
  }
  .page-products__right {
    padding: 48px 40px 64px;
    overflow-y: auto;
  }
  .page-products__right-content {
    max-width: 700px;
  }
  .page-products__section-title {
    font-size: 1.75rem;
  }
  .page-products__channel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .page-products__channel-card:last-child {
    grid-column: 1 / -1;
  }
  .page-products__timeline {
    padding-left: 32px;
  }
  .page-products__timeline-dot {
    left: -26px;
    width: 14px;
    height: 14px;
  }
}

@media (min-width: 1024px) {
  .page-products__left {
    width: 420px;
    padding: 100px 40px 80px;
  }
  .page-products__right {
    padding: 56px 60px 80px;
  }
  .page-products__right-content {
    max-width: 780px;
  }
  .page-products__channel-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-products__channel-card:last-child {
    grid-column: 1 / -1;
    max-width: calc(50% + 10px);
  }
}