.page-products {
  --page-max-width: 1200px;
  --page-gap: 2rem;
  --page-padding: 1rem;
  --color-bg-light: #E8F0FE;
  --color-bg-dark: #0D2340;
  --color-accent: #00C853;
  --color-text-primary: #1A1A2E;
  --color-text-secondary: #4A5568;
  --color-white: #FFFFFF;
  --font-heading: 'Montserrat Black', Arial, sans-serif;
  --font-body: 'Inter Light', -apple-system, BlinkMacSystemFont, sans-serif;
  --border-radius: 0;
  --box-shadow-base: 0 2px 8px rgba(0,0,0,0.1);
}

.page-products {
  display: block;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: var(--page-padding);
  font-family: var(--font-body);
  color: var(--color-text-primary);
  line-height: 1.6;
}

/* 面包屑 */
.page-products .breadcrumb {
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  color: var(--color-text-secondary);
}
.page-products .breadcrumb-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-products .breadcrumb-list li::after {
  content: "→";
  margin-left: 0.5rem;
  color: var(--color-neutral-gray);
}
.page-products .breadcrumb-list li:last-child::after {
  content: none;
}
.page-products .breadcrumb-list a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-products .breadcrumb-list a:hover {
  color: var(--color-accent);
}

/* 页面标题 */
.page-products .page-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1.1;
  margin: 0 0 0.5rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.page-products .page-subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 60ch;
  font-weight: 300;
}

/* 通用章节布局 */
.page-products .feature {
  margin: 4rem 0;
  padding: 2rem 1rem;
  background: var(--color-bg-light);
  border-left: 6px solid var(--color-accent);
  transition: background 0.3s;
}
.page-products .feature:first-of-type {
  margin-top: 0;
}
.page-products .feature:nth-of-type(even) {
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg-dark) 100%);
  border-left-color: var(--color-primary);
  color: var(--color-white);
}
.page-products .feature:nth-of-type(even) .feature-heading,
.page-products .feature:nth-of-type(even) .feature-text {
  color: var(--color-white);
}
.page-products .feature:nth-of-type(even) a {
  color: var(--color-accent);
}

/* 章节内容容器（flex） */
.page-products .feature-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
@media (min-width: 768px) {
  .page-products .feature-content {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
  .page-products .feature-shot .feature-content {
    flex-direction: row;
  }
  .page-products .feature-team .feature-content {
    flex-direction: row-reverse;
  }
  .page-products .feature-changes .feature-content {
    flex-direction: row;
  }
  .page-products .feature-download .feature-content {
    flex-direction: row-reverse;
  }
}

/* 章节内文字区域 */
.page-products .feature-info,
.page-products .feature-text {
  flex: 1 1 50%;
  min-width: 280px;
}

/* 章节标题 */
.page-products .feature-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  position: relative;
}
.page-products .feature-heading::before {
  content: "◆";
  color: var(--color-accent);
  margin-right: 0.5rem;
  font-size: 0.6em;
  vertical-align: middle;
}
.page-products .feature:nth-of-type(even) .feature-heading::before {
  color: var(--color-accent);
}

/* 正文 */
.page-products .feature-text {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  max-width: 60ch;
}

/* 图片容器 */
.page-products .feature-visual {
  flex: 1 1 45%;
  min-width: 250px;
}
.page-products .feature-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-base);
  display: block;
  margin: 0 auto;
}

/* 统计图表切换（交互标记） */
.page-products .chart-container {
  position: relative;
}
.page-products .chart-container .alternative {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 组队步骤列表 */
.page-products .steps-carousel {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  margin: 1rem 0;
}
.page-products .steps-list {
  display: flex;
  gap: 1rem;
  padding: 0;
  list-style: none;
  min-width: max-content;
}
.page-products .step-item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  background: var(--color-white);
  color: var(--color-text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  font-weight: 600;
  box-shadow: var(--box-shadow-base);
  border: 2px solid var(--color-accent);
}
.page-products .feature:nth-of-type(even) .step-item {
  background: var(--color-bg-dark);
  color: var(--color-white);
  border-color: var(--color-accent);
}

/* 变更说明details */
.page-products .change-list {
  width: 100%;
  margin: 1.5rem 0;
}
.page-products .change-item {
  background: var(--color-white);
  margin-bottom: 0.75rem;
  border: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: box-shadow 0.2s;
}
.page-products .change-item[open] {
  box-shadow: 0 2px 10px rgba(0,200,83,0.2);
}
.page-products .change-item summary {
  font-weight: 600;
  cursor: pointer;
  padding: 0.25rem 0;
  color: var(--color-primary);
}
.page-products .feature:nth-of-type(even) .change-item summary {
  color: var(--color-accent);
}
.page-products .change-item p {
  margin: 0.75rem 0 0;
  padding-left: 1rem;
  border-left: 3px solid var(--color-accent);
  color: var(--color-text-secondary);
}

/* 分隔图片 */
.page-products .section-divider {
  width: 100%;
  height: auto;
  display: block;
  margin: 2rem 0;
  opacity: 0.6;
}

/* 下载相关链接 */
.page-products .download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}
.page-products .related-link {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s;
}
.page-products .related-link:hover {
  background: var(--color-accent);
  color: var(--color-text-primary);
}

/* 底部相关导航 */
.page-products .section-related {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--color-border);
  text-align: center;
  font-size: 0.9rem;
}
.page-products .section-related a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-products .section-related a:hover {
  color: var(--color-accent);
}

/* 移动端精调 */
@media (max-width: 767px) {
  .page-products .feature {
    padding: 1.5rem 1rem;
    margin: 2rem 0;
  }
  .page-products .feature-content {
    flex-direction: column !important;
  }
  .page-products .feature-visual {
    width: 100%;
  }
  .page-products .feature-img {
    width: 100%;
    height: auto;
  }
  .page-products .steps-list {
    gap: 0.5rem;
  }
  .page-products .step-item {
    padding: 0.5rem 1rem;
  }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .page-products .feature-content {
    flex-wrap: nowrap;
  }
  .page-products .feature-info,
  .page-products .feature-visual {
    flex: 1 1 50%;
  }
}
@media (min-width: 1024px) {
  .page-products .feature {
    padding: 3rem 2rem;
  }
  .page-products .feature-shot .feature-content,
  .page-products .feature-changes .feature-content {
    flex-direction: row;
  }
  .page-products .feature-team .feature-content,
  .page-products .feature-download .feature-content {
    flex-direction: row-reverse;
  }
  .page-products .feature-heading {
    font-size: 2.5rem;
  }
}