.page-products {
  --card-expand-duration: 0.4s;
  --feature-icon-size: 24px;
  --step-icon-size: 80px;
  --download-img-size: 100px;
  --other-card-min-height: 350px;
}

/* 面包屑 */
.page-products .breadcrumb {
  padding: 16px var(--max-width) 0;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.page-products .breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.page-products .breadcrumb a:hover {
  color: var(--color-primary);
}

.page-products .breadcrumb .sep {
  color: var(--color-accent1);
}

/* 页面介绍 */
.page-products-intro {
  text-align: center;
  padding: 40px 20px 20px;
}

.page-products-intro h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  font-style: italic;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.page-products-intro .intro-sub {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 通用服务区块 */
.service-path {
  padding: 48px 0;
}

.service-path .section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  padding-bottom: 16px;
  margin-bottom: 32px;
  border-bottom: 2px solid var(--color-accent1);
}

.service-path .section-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

/* 焕新版特色 —— 图文错位 */
.feature-showcase {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
}

.feature-visual {
  flex: 1 1 320px;
  min-width: 260px;
}

.feature-img {
  width: 100%;
  height: auto;
  max-width: 600px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  display: block;
  object-fit: cover;
}

.feature-list {
  flex: 1 1 320px;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-icon {
  flex-shrink: 0;
  width: var(--feature-icon-size);
  height: var(--feature-icon-size);
  color: var(--color-primary);
  margin-top: 2px;
}

.feature-item h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.feature-item p {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* 可展开卡片 */
.card-expandable {
  background: var(--color-secondary);
  border: 1px solid var(--color-accent1);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.card-expandable:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.card-expandable[open] {
  box-shadow: 0 6px 24px rgba(0,0,0,0.35);
}

.card-header {
  display: flex;
  gap: 20px;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.card-header::-webkit-details-marker {
  display: none;
}

.card-header-icon {
  flex-shrink: 0;
  width: var(--download-img-size);
  height: var(--download-img-size);
}

.card-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.card-header-img-wrap {
  flex-shrink: 0;
  width: 120px;
  height: 90px;
  overflow: hidden;
  border-radius: 4px;
}

.card-header-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: block;
}

.card-subtitle {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 4px;
}

.card-toggle {
  margin-left: auto;
  color: var(--color-accent1);
  transition: transform var(--card-expand-duration);
  flex-shrink: 0;
}

.card-expandable[open] .card-toggle {
  transform: rotate(180deg);
}

.card-body {
  padding: 0 24px 24px;
  border-top: 1px solid var(--color-accent1);
  margin-top: 0;
}

/* 下载步骤 */
.download-steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px 0 16px;
}

.step {
  display: flex;
  gap: 20px;
  align-items: center;
}

.step-number {
  flex-shrink: 0;
  width: var(--step-icon-size);
  height: var(--step-icon-size);
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-number img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.step h4 {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 6px;
}

.step p {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.download-cta-wrapper {
  text-align: center;
  padding: 16px 0 8px;
}

/* 会员功能列表 */
.membership-features {
  list-style: none;
  padding: 20px 0 12px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.membership-features li {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-left: 24px;
  position: relative;
}

.membership-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
}

.membership-features li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.membership-extra {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 12px 0 4px;
  border-top: 1px solid var(--color-accent1);
}

.membership-extra a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* 其他服务网格 */
.other-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.other-card {
  background: var(--color-secondary);
  border: 1px solid var(--color-accent1);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: var(--other-card-min-height);
  transition: transform var(--transition), box-shadow var(--transition);
}

.other-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.other-card-img-wrap {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.other-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.other-card-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.other-card-content h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 10px;
}

.other-card-content p {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0 0 20px;
  flex: 1;
}

.btn-small {
  align-self: flex-start;
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-block;
  text-decoration: none;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--text-primary);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-small:hover {
  opacity: 0.85;
  transform: scale(1.03);
}

/* 首屏主图不懒加载, 其余图片懒加载 */
.feature-img {
  loading: eager;
}

/* 移动端优先适配 */
@media (max-width: 767px) {
  .page-products .breadcrumb {
    padding-left: 16px;
    padding-right: 16px;
  }

  .page-products-intro {
    padding: 24px 16px 16px;
  }

  .page-products-intro h1 {
    font-size: 1.75rem;
  }

  .page-products-intro .intro-sub {
    font-size: 1rem;
  }

  .service-path {
    padding: 32px 16px;
  }

  .feature-showcase {
    flex-direction: column;
    gap: 24px;
  }

  .feature-visual {
    flex: 1 1 auto;
    min-width: auto;
  }

  .feature-img {
    max-width: 100%;
  }

  .feature-list {
    flex: 1 1 auto;
    min-width: auto;
  }

  .feature-item {
    flex-direction: column;
    gap: 8px;
  }

  .card-header {
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
  }

  .card-header-icon,
  .card-header-img-wrap {
    width: 60px;
    height: 60px;
  }

  .card-header-img-wrap {
    width: 80px;
    height: 60px;
  }

  .card-title {
    font-size: 1.0625rem;
  }

  .card-body {
    padding: 0 16px 16px;
  }

  .download-steps {
    gap: 20px;
    padding: 20px 0 12px;
  }

  .step {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .step-number {
    width: 60px;
    height: 60px;
  }

  .other-services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .other-card-img-wrap {
    height: 160px;
  }

  .other-card-content {
    padding: 16px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .other-services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .other-services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}