/* ===== page-products 专属样式 ===== */
.page-products {
  --color-primary: #0B1D3A;
  --color-accent: #FF6B35;
  --color-background: #FFFFFF;
  --color-surface: #F4F6F9;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #5A5A5A;
  --color-border: #D1D5DB;
  --font-heading: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: Georgia, 'Times New Roman', serif;
  --font-size-h1: 48px;
  --font-size-h2: 32px;
  --font-size-h3: 24px;
  --font-size-body: 16px;
  --font-size-small: 14px;
  --line-height-heading: 1.4;
  --line-height-body: 1.6;
  --container-max: 1200px;
  --transition-fast: 0.2s ease;

  max-width: var(--container-max);
  margin: 0 auto;
  padding: 24px 20px 60px;
  font-family: var(--font-body);
  color: var(--color-text-primary);
  line-height: var(--line-height-body);
}

/* 面包屑 */
.page-products .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}
.page-products .breadcrumb__link {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-products .breadcrumb__link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}
.page-products .breadcrumb__sep {
  color: var(--color-border);
}
.page-products .breadcrumb__current {
  font-weight: 600;
  color: var(--color-primary);
}

/* 展示区：分屏布局 */
.page-products .showcase {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 56px;
  background: var(--color-surface);
  border-radius: 0;
  padding: 32px 24px;
  border-left: 6px solid var(--color-accent);
}
.page-products .showcase__text {
  flex: 1 1 55%;
}
.page-products .showcase__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h1);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.page-products .showcase__subtitle {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 8px;
  font-family: var(--font-heading);
}
.page-products .showcase__desc {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin: 0 0 24px;
  max-width: 520px;
}
.page-products .download-zone {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-products .download-zone__badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 4px 14px;
  font-size: var(--font-size-small);
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
  align-self: flex-start;
}
.page-products .download-zone__action {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.page-products .download-zone__icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  flex-shrink: 0;
}
.page-products .download-zone__btn {
  font-family: var(--font-heading);
  font-size: 18px;
  padding: 12px 32px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  cursor: default;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
  display: inline-block;
}
.page-products .download-zone__btn:hover {
  background: #e55a2b;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
}
.page-products .download-zone__note {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin: 0;
}
.page-products .showcase__visual {
  flex: 1 1 45%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-products .showcase__img {
  width: 100%;
  max-width: 500px;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

/* 功能卡片区 */
.page-products .features {
  margin-bottom: 48px;
}
.page-products .features__title {
  margin-bottom: 28px;
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  border-bottom: 4px solid var(--color-accent);
  padding-bottom: 8px;
  display: inline-block;
}
.page-products .features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

/* 卡片翻转交互 */
.page-products .feature-card {
  perspective: 800px;
  background: transparent;
  border: none;
  box-shadow: none;
  min-height: 320px;
}
.page-products .feature-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.4s ease;
  transform-style: preserve-3d;
}
.page-products .feature-card:hover .feature-card__inner {
  transform: rotateY(180deg);
}
.page-products .feature-card__front,
.page-products .feature-card__back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--color-background);
  border: 2px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(11, 29, 58, 0.06);
}
.page-products .feature-card__back {
  transform: rotateY(180deg);
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.page-products .feature-card__img {
  width: 100%;
  max-width: 180px;
  height: auto;
  object-fit: cover;
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
}
.page-products .feature-card__name {
  font-family: var(--font-heading);
  font-size: var(--font-size-h3);
  color: var(--color-primary);
  margin: 0;
}
.page-products .feature-card__back .feature-card__detail {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  margin: 0;
  padding: 0 8px;
}

/* 教程入口条 */
.page-products .tutorial-cta {
  margin-bottom: 48px;
  background: var(--color-primary);
  padding: 32px 24px;
  border-right: 6px solid var(--color-accent);
}
.page-products .tutorial-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.page-products .tutorial-cta__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  color: #fff;
  margin: 0;
}
.page-products .tutorial-cta__desc {
  font-size: var(--font-size-body);
  color: rgba(255,255,255,0.85);
  margin: 0;
  max-width: 480px;
}
.page-products .tutorial-cta__link {
  font-family: var(--font-heading);
  font-size: var(--font-size-body);
  padding: 10px 28px;
  background: transparent;
  color: #fff;
  border: 2px solid var(--color-accent);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
  display: inline-block;
  margin-top: 4px;
}
.page-products .tutorial-cta__link:hover {
  background: var(--color-accent);
  color: #fff;
}

/* 使用帮助 */
.page-products .support-note {
  margin-bottom: 16px;
}
.page-products .support-note__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  margin-bottom: 16px;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 6px;
}
.page-products .support-note__grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-products .support-note__item {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  margin: 0;
}
.page-products .support-note__link {
  color: var(--color-accent);
  text-decoration: underline;
  transition: color var(--transition-fast);
}
.page-products .support-note__link:hover {
  color: var(--color-primary);
}

/* ===== 媒体查询：平板及以上 ===== */
@media (min-width: 640px) {
  .page-products {
    padding: 32px 32px 60px;
  }
  .page-products .showcase {
    flex-direction: row;
    align-items: center;
    padding: 40px 36px;
  }
  .page-products .showcase__title {
    font-size: 42px;
  }
  .page-products .features__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .page-products .feature-card {
    min-height: 360px;
  }
  .page-products .tutorial-cta {
    padding: 40px 36px;
  }
  .page-products .tutorial-cta__inner {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
  }
  .page-products .tutorial-cta__title {
    font-size: 28px;
  }
  .page-products .support-note__grid {
    flex-direction: row;
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-products .showcase__title {
    font-size: var(--font-size-h1);
  }
  .page-products .features__grid {
    gap: 28px;
  }
  .page-products .feature-card {
    min-height: 400px;
  }
}