/* ===== 页面专属 CSS：.page-products ===== */
.page-products {
  display: block;
  width: 100%;
  background-color: var(--bg-primary, #F5F0E1);
  color: var(--text-primary, #2B2B2B);
  font-family: var(--font-body, Georgia, serif);
}

.page-products .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* 面包屑 */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 14px;
  font-family: var(--font-heading, system-ui, sans-serif);
  color: var(--text-secondary, #8C7E6B);
}

.page-products .breadcrumb a {
  color: var(--accent, #D94F14);
  text-decoration: none;
  transition: color 0.2s;
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--accent-hover, #C4400F);
  text-decoration: underline;
}

.page-products .breadcrumb-sep {
  color: var(--text-secondary, #8C7E6B);
  user-select: none;
}

/* 页面标题 */
.page-products .page-title {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 28px 0;
  color: var(--text-primary, #2B2B2B);
  letter-spacing: -0.02em;
}

/* 平台概览区 */
.page-products .platform-overview {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 48px;
  background-color: var(--bg-secondary, #E8DCC8);
  border-radius: var(--radius-large, 24px);
  padding: 20px;
}

.page-products .overview-visual {
  width: 100%;
  display: flex;
  justify-content: center;
}

.page-products .overview-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-medium, 16px);
  display: block;
  box-shadow: 0 2px 12px rgba(43, 43, 43, 0.08);
}

.page-products .overview-desc {
  font-size: 17px;
  line-height: 1.7;
  margin: 0;
  color: var(--text-primary, #2B2B2B);
  max-width: 780px;
}

/* 区块标题 */
.page-products .section-title {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 24px 0;
  color: var(--text-primary, #2B2B2B);
  letter-spacing: -0.01em;
  border-left: 4px solid var(--accent, #D94F14);
  padding-left: 16px;
}

/* 功能卡片网格 */
.page-products .platform-features {
  margin-bottom: 48px;
}

.page-products .feature-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-products .feature-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: var(--bg-secondary, #E8DCC8);
  border-radius: var(--radius-large, 24px);
  padding: 20px;
  transition: box-shadow 0.25s, transform 0.2s;
  box-shadow: 0 2px 8px rgba(43, 43, 43, 0.06);
  border: 1px solid transparent;
}

.page-products .feature-card:hover {
  box-shadow: 0 6px 20px rgba(43, 43, 43, 0.10);
  transform: translateY(-2px);
  border-color: var(--accent, #D94F14);
}

.page-products .feature-img {
  width: 100%;
  max-width: 280px;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-medium, 16px);
  align-self: center;
  flex-shrink: 0;
}

.page-products .feature-card-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.page-products .feature-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-products .feature-icon {
  color: var(--accent, #D94F14);
  flex-shrink: 0;
  display: block;
}

.page-products .feature-title {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary, #2B2B2B);
}

.page-products .feature-desc {
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  color: var(--text-primary, #2B2B2B);
}

.page-products .feature-details {
  margin-top: 4px;
  border-top: 1px solid var(--border, #8C7E6B);
  padding-top: 10px;
}

.page-products .feature-details summary {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent, #D94F14);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s;
}

.page-products .feature-details summary:hover,
.page-products .feature-details summary:focus-visible {
  color: var(--accent-hover, #C4400F);
}

.page-products .details-text {
  font-size: 15px;
  line-height: 1.6;
  margin: 10px 0 0 0;
  color: var(--text-primary, #2B2B2B);
}

/* 下载方式区 */
.page-products .download-section {
  margin-bottom: 48px;
}

.page-products .download-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background-color: var(--bg-secondary, #E8DCC8);
  border-radius: var(--radius-large, 24px);
  padding: 24px 20px;
  box-shadow: 0 2px 8px rgba(43, 43, 43, 0.06);
  border: 2px solid var(--accent, #D94F14);
}

.page-products .download-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.page-products .download-desc {
  font-size: 17px;
  line-height: 1.7;
  margin: 0;
  color: var(--text-primary, #2B2B2B);
}

.page-products .download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent, #D94F14);
  color: #fff;
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 18px;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 40px;
  border: none;
  cursor: pointer;
  transition: background-color 0.25s, transform 0.15s, box-shadow 0.25s;
  text-align: center;
  align-self: flex-start;
  box-shadow: 0 4px 12px rgba(217, 79, 20, 0.30);
  letter-spacing: 0.02em;
  user-select: none;
}

.page-products .download-btn:hover,
.page-products .download-btn:focus-visible {
  background-color: var(--accent-hover, #C4400F);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 79, 20, 0.40);
}

.page-products .download-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(217, 79, 20, 0.30);
}

.page-products .download-note {
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
  color: var(--text-secondary, #8C7E6B);
}

.page-products .download-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-medium, 16px);
  align-self: center;
  flex-shrink: 0;
}

/* 数据存档说明区 */
.page-products .archive-info {
  margin-bottom: 48px;
}

.page-products .archive-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  background-color: var(--bg-content, #FDFBF5);
  border-radius: var(--radius-large, 24px);
  padding: 24px 20px;
  box-shadow: 0 2px 8px rgba(43, 43, 43, 0.06);
}

.page-products .archive-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}

.page-products .archive-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-medium, 16px);
}

.page-products .timeline-caption {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary, #2B2B2B);
}

.page-products .timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent, #D94F14);
  flex-shrink: 0;
}

.page-products .timeline-arrow {
  color: var(--accent, #D94F14);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.page-products .timeline-label {
  white-space: nowrap;
}

.page-products .archive-text {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .archive-text p {
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  color: var(--text-primary, #2B2B2B);
}

/* 相关链接区 */
.page-products .related-links {
  margin-bottom: 16px;
}

.page-products .related-title {
  margin-bottom: 20px;
}

.page-products .related-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .related-link {
  display: block;
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary, #2B2B2B);
  background-color: var(--bg-secondary, #E8DCC8);
  border-radius: var(--radius-medium, 16px);
  padding: 16px 20px;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s, transform 0.15s;
  box-shadow: 0 2px 6px rgba(43, 43, 43, 0.05);
}

.page-products .related-link:hover,
.page-products .related-link:focus-visible {
  background-color: var(--accent, #D94F14);
  color: #fff;
  transform: translateX(4px);
}

/* ===== 响应式：桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-products .container {
    padding: 32px 32px 48px;
  }

  .page-products .page-title {
    font-size: 44px;
    margin-bottom: 32px;
  }

  .page-products .platform-overview {
    flex-direction: row;
    align-items: center;
    padding: 28px 32px;
    gap: 32px;
  }

  .page-products .overview-visual {
    flex-shrink: 0;
    width: auto;
  }

  .page-products .overview-img {
    width: 600px;
    height: 300px;
  }

  .page-products .overview-desc {
    font-size: 18px;
  }

  .page-products .section-title {
    font-size: 32px;
  }

  /* 功能卡片桌面图文错位 */
  .page-products .feature-card {
    flex-direction: row;
    align-items: flex-start;
    gap: 24px;
    padding: 24px 28px;
  }

  .page-products .feature-card:nth-child(even) {
    flex-direction: row-reverse;
  }

  .page-products .feature-img {
    width: 200px;
    height: 150px;
    align-self: flex-start;
  }

  .page-products .feature-title {
    font-size: 24px;
  }

  /* 下载卡桌面并排 */
  .page-products .download-card {
    flex-direction: row;
    align-items: center;
    padding: 28px 32px;
    gap: 32px;
  }

  .page-products .download-img {
    width: 200px;
    height: 150px;
    order: 1;
  }

  .page-products .download-body {
    order: 0;
  }

  .page-products .download-btn {
    font-size: 20px;
    padding: 16px 44px;
  }

  /* 存档区桌面并排 */
  .page-products .archive-content {
    flex-direction: row;
    align-items: flex-start;
    gap: 32px;
    padding: 28px 32px;
  }

  .page-products .archive-visual {
    flex-shrink: 0;
    min-width: 320px;
  }

  .page-products .archive-text {
    flex: 1;
  }

  .page-products .archive-text p {
    font-size: 17px;
  }

  /* 相关链接桌面网格 */
  .page-products .related-grid {
    flex-direction: row;
    gap: 16px;
  }

  .page-products .related-link {
    flex: 1;
    text-align: center;
    padding: 20px 16px;
    font-size: 17px;
  }

  .page-products .related-link:hover,
  .page-products .related-link:focus-visible {
    transform: translateY(-4px);
  }
}

/* ===== 桌面宽屏 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-products .container {
    padding: 40px 48px 56px;
  }

  .page-products .page-title {
    font-size: 48px;
  }

  .page-products .feature-grid {
    gap: 28px;
  }

  .page-products .feature-card {
    padding: 28px 32px;
    gap: 32px;
  }
}

/* ===== 可访问性 & 降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-products .feature-card,
  .page-products .download-btn,
  .page-products .related-link {
    transition: none;
  }

  .page-products .feature-card:hover {
    transform: none;
  }

  .page-products .download-btn:hover {
    transform: none;
  }

  .page-products .related-link:hover {
    transform: none;
  }
}

.page-products .feature-details summary:focus-visible,
.page-products .download-btn:focus-visible,
.page-products .related-link:focus-visible {
  outline: 3px solid var(--accent, #D94F14);
  outline-offset: 2px;
}

/* 确保所有图片响应式 */
.page-products img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 卡片通用内边距一致 */
.page-products .card {
  box-sizing: border-box;
}

/* 窄屏辅助 */
@media (max-width: 360px) {
  .page-products .container {
    padding: 16px 12px;
  }

  .page-products .page-title {
    font-size: 28px;
  }

  .page-products .download-btn {
    width: 100%;
    text-align: center;
  }
}