.page-products {
  --page-gold: var(--color-primary, #D4AF37);
  --page-gold-light: var(--color-primary-light, #F9E79F);
  --page-blue: var(--color-secondary, #1A237E);
  --page-orange: var(--color-accent, #FF6F00);
  --page-dark: var(--color-bg-dark, #0D1B2A);
  --page-light: var(--color-bg-light, #F5F5F5);
  --page-text: var(--color-text, #212121);
  --page-text-secondary: var(--color-text-secondary, #757575);
  --page-text-on-dark: var(--color-text-on-dark, #FFFFFF);
  --page-border: var(--color-border, #B0BEC5);
  --page-font-primary: var(--font-primary, 'Noto Sans SC', 'PingFang SC', sans-serif);
  --page-font-secondary: var(--font-secondary, 'Noto Serif SC', serif);
  --page-border-width: var(--border-width, 6px);
  --page-radius: var(--border-radius, 16px);
  --page-shadow: var(--shadow-strong, 0 8px 24px rgba(0,0,0,0.25));
  --page-shadow-hover: var(--shadow-hover, 0 12px 32px rgba(0,0,0,0.35));
  --page-transition: var(--transition-base, 0.3s cubic-bezier(0.4,0,0.2,1));
  --page-max-width: var(--max-width, 1280px);
}

/* 面包屑 */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0 0.5rem;
  font-family: var(--page-font-primary);
  font-size: 0.875rem;
  color: var(--page-text-secondary);
}
.page-products .breadcrumb a {
  color: var(--page-gold);
  text-decoration: none;
  transition: color var(--page-transition);
}
.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--page-orange);
  text-decoration: underline;
}
.page-products .breadcrumb-sep {
  color: var(--page-gold);
  font-size: 0.625rem;
  opacity: 0.6;
}

/* 页面英雄区 */
.page-products .page-hero {
  padding: 1.5rem 0 2rem;
  position: relative;
}
.page-products .page-hero .section-number {
  display: block;
  font-family: var(--page-font-primary);
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--page-gold);
  opacity: 0.15;
  margin-bottom: -1.5rem;
  letter-spacing: -0.08em;
}
.page-products .page-hero__title {
  font-family: var(--page-font-primary);
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--page-dark);
  margin: 0 0 0.5rem;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
.page-products .page-hero__subtitle {
  font-family: var(--page-font-secondary);
  font-size: 1.125rem;
  color: var(--page-text-secondary);
  margin: 0;
  max-width: 32rem;
  line-height: 1.5;
}

/* 页面整体布局 */
.page-products .page-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-bottom: 3rem;
}

/* 侧边栏 */
.page-products .page-sidebar {
  flex-shrink: 0;
  width: 100%;
}
.page-products .sidebar-card {
  background: var(--page-dark);
  border: var(--page-border-width) solid var(--page-gold);
  border-radius: var(--page-radius);
  padding: 1.5rem;
  box-shadow: var(--page-shadow);
  position: relative;
  overflow: hidden;
}
.page-products .sidebar-card__icon {
  margin-bottom: 1rem;
}
.page-products .sidebar-card__icon svg {
  display: block;
}
.page-products .sidebar-card__title {
  font-family: var(--page-font-primary);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--page-gold);
  margin: 0 0 0.5rem;
}
.page-products .sidebar-card__text {
  font-family: var(--page-font-secondary);
  font-size: 0.875rem;
  color: var(--page-text-on-dark);
  line-height: 1.5;
  margin: 0 0 1rem;
  opacity: 0.85;
}
.page-products .sidebar-card__decoration {
  position: absolute;
  bottom: -0.5rem;
  right: -0.5rem;
  width: 120px;
  height: 120px;
  opacity: 0.6;
  pointer-events: none;
}

/* 主内容区 */
.page-products .page-main {
  flex: 1;
  min-width: 0;
}

/* 标签系统 */
.page-products .tab-system {
  display: flex;
  position: relative;
  gap: 0.25rem;
  border-bottom: 3px solid var(--page-border);
  margin-bottom: 2rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.page-products .tab-system::-webkit-scrollbar {
  display: none;
}
.page-products .tab-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-family: var(--page-font-primary);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--page-text-secondary);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -3px;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--page-transition), border-color var(--page-transition), background var(--page-transition);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}
.page-products .tab-trigger:hover {
  color: var(--page-gold);
  background: rgba(212, 175, 55, 0.06);
}
.page-products .tab-trigger:focus-visible {
  outline: 2px solid var(--page-gold);
  outline-offset: -2px;
  border-radius: 4px;
}
.page-products .tab-trigger[aria-selected="true"] {
  color: var(--page-gold);
  border-bottom-color: var(--page-gold);
}
.page-products .tab-trigger__icon {
  font-size: 1.25rem;
  line-height: 1;
}
.page-products .tab-trigger__text {
  line-height: 1.2;
}
.page-products .tab-trigger__badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--page-text-on-dark);
  background: var(--page-orange);
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.page-products .tab-indicator {
  display: none;
}

/* 标签面板 */
.page-products .tab-panels {
  position: relative;
}
.page-products .tab-panel {
  display: none;
  animation: page-fade-in 0.35s ease;
}
.page-products .tab-panel[aria-hidden="false"] {
  display: block;
}
@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 进度条 */
.page-products .tab-progress {
  height: 4px;
  background: var(--page-border);
  border-radius: 4px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.page-products .tab-progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--page-gold), var(--page-orange));
  border-radius: 4px;
  transition: width 0.15s ease;
  width: 0%;
}

/* 面板内容网格 */
.page-products .panel-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-products .panel-grid--reverse {
  flex-direction: column-reverse;
}
.page-products .panel-text {
  flex: 1;
}
.page-products .panel-heading {
  font-family: var(--page-font-primary);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--page-dark);
  margin: 0 0 0.75rem;
  line-height: 1.2;
}
.page-products .panel-heading__sub {
  display: block;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--page-text-secondary);
  margin-top: 0.25rem;
  font-family: var(--page-font-secondary);
}
.page-products .panel-desc {
  font-family: var(--page-font-secondary);
  font-size: 1rem;
  color: var(--page-text);
  line-height: 1.7;
  margin: 0 0 1rem;
}
.page-products .panel-link {
  color: var(--page-gold);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--page-transition);
}
.page-products .panel-link:hover,
.page-products .panel-link:focus-visible {
  color: var(--page-orange);
}
.page-products .panel-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-products .panel-feature-list li {
  font-family: var(--page-font-secondary);
  font-size: 0.9375rem;
  color: var(--page-text);
  line-height: 1.5;
  padding-left: 1.5rem;
  position: relative;
}
.page-products .panel-feature-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--page-gold);
  font-size: 0.75rem;
}
.page-products .panel-media {
  flex-shrink: 0;
  width: 100%;
}
.page-products .panel-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--page-radius) * 0.75);
  border: 4px solid var(--page-gold);
  box-shadow: var(--page-shadow);
  object-fit: cover;
  aspect-ratio: 3 / 2;
  background: var(--page-border);
}

/* CTA区域 */
.page-products .page-cta {
  padding: 0 0 3rem;
}
.page-products .cta-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--page-dark);
  border: var(--page-border-width) solid var(--page-gold);
  border-radius: var(--page-radius);
  padding: 2rem 1.5rem;
  box-shadow: var(--page-shadow);
}
.page-products .cta-card__title {
  font-family: var(--page-font-primary);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--page-gold);
  margin: 0 0 0.5rem;
}
.page-products .cta-card__text {
  font-family: var(--page-font-secondary);
  font-size: 1rem;
  color: var(--page-text-on-dark);
  line-height: 1.6;
  margin: 0;
  opacity: 0.9;
}
.page-products .cta-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-products .cta-card__actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-family: var(--page-font-primary);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: calc(var(--page-radius) * 0.5);
  transition: all var(--page-transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.page-products .cta-card__actions .btn-primary {
  background: var(--page-gold);
  color: var(--page-dark);
  border-color: var(--page-gold);
}
.page-products .cta-card__actions .btn-primary:hover,
.page-products .cta-card__actions .btn-primary:focus-visible {
  background: var(--page-gold-light);
  border-color: var(--page-gold-light);
  box-shadow: var(--page-shadow);
  transform: translateY(-2px);
}
.page-products .cta-card__actions .btn-accent {
  background: var(--page-orange);
  color: var(--page-text-on-dark);
  border-color: var(--page-orange);
}
.page-products .cta-card__actions .btn-accent:hover,
.page-products .cta-card__actions .btn-accent:focus-visible {
  background: #e06300;
  border-color: #e06300;
  box-shadow: var(--page-shadow);
  transform: translateY(-2px);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products .page-hero__title {
    font-size: 2.75rem;
  }
  .page-products .page-hero .section-number {
    font-size: 5rem;
  }
  .page-products .panel-heading {
    font-size: 1.75rem;
  }
  .page-products .cta-card {
    padding: 2.5rem 2rem;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-products .cta-card__content {
    flex: 1;
  }
  .page-products .cta-card__actions {
    flex-shrink: 0;
  }
}

@media (min-width: 900px) {
  .page-products .page-layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .page-products .page-sidebar {
    width: 240px;
    position: sticky;
    top: 2rem;
  }
  .page-products .page-main {
    width: calc(100% - 240px - 2rem);
  }
  .page-products .panel-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 2rem;
  }
  .page-products .panel-grid--reverse {
    flex-direction: row;
  }
  .page-products .panel-text {
    width: 55%;
  }
  .page-products .panel-media {
    width: 45%;
  }
  .page-products .panel-img {
    aspect-ratio: 3 / 2;
  }
  .page-products .tab-trigger {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }
  .page-products .page-hero__title {
    font-size: 3rem;
  }
  .page-products .page-hero .section-number {
    font-size: 6rem;
    opacity: 0.1;
  }
  .page-products .cta-card {
    padding: 3rem 2.5rem;
  }
  .page-products .cta-card__title {
    font-size: 1.75rem;
  }
}

@media (min-width: 1200px) {
  .page-products .page-sidebar {
    width: 280px;
  }
  .page-products .page-main {
    width: calc(100% - 280px - 2.5rem);
  }
  .page-products .panel-text {
    width: 60%;
  }
  .page-products .panel-media {
    width: 40%;
  }
}