/* ============ page-products 专属样式 ============ */
.page-products {
  --page-bg: var(--clr-secondary-bg);
  --page-text: var(--clr-secondary-text);
  --page-accent: var(--clr-accent);
  --page-accent-hover: var(--clr-accent-hover);
  --page-card-bg: #F9F9F9;
  --page-card-border: #EAEAEA;

  background: var(--page-bg);
  color: var(--page-text);
  padding: var(--spacing-md);
  padding-top: calc(var(--nav-height) + var(--spacing-md));
  max-width: var(--max-width);
  margin: 0 auto;
  font-family: var(--font-body);
}

/* 面包屑 */
.page-products .breadcrumb {
  margin-bottom: var(--spacing-lg);
  font-size: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 300;
  letter-spacing: 0.02em;
}
.page-products .breadcrumb ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25em 0.5em;
}
.page-products .breadcrumb__link {
  color: var(--page-accent);
  text-decoration: none;
  transition: color 0.2s;
}
.page-products .breadcrumb__link:hover,
.page-products .breadcrumb__link:focus {
  color: var(--page-accent-hover);
  text-decoration: underline;
}
.page-products .breadcrumb__sep {
  color: var(--clr-card-border);
}
.page-products .breadcrumb__current {
  color: var(--page-text);
  font-weight: 600;
}

/* 通用标题 */
.page-products .section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 var(--spacing-sm);
}
.page-products .section-title--large {
  font-size: 2.5rem;
}
@media (min-width: 768px) {
  .page-products .section-title--large {
    font-size: 3.2rem;
  }
}
.page-products .section-title--small {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

/* 服务生态概览 */
.page-products .service-ecosystem {
  margin-bottom: var(--spacing-xl);
  border: 2px solid var(--clr-card-border);
  padding: var(--spacing-lg);
  background: var(--page-card-bg);
  position: relative;
}
.page-products .service-ecosystem::before {
  content: '';
  position: absolute;
  top: -8px;
  left: -8px;
  right: -8px;
  bottom: -8px;
  border: 1px solid var(--clr-card-border);
  pointer-events: none;
  z-index: 0;
}
.page-products .service-ecosystem > * {
  position: relative;
  z-index: 1;
}
.page-products .ecosystem-intro {
  font-size: 1.05rem;
  max-width: 60ch;
  margin-bottom: var(--spacing-lg);
}

/* 技能树容器 */
.page-products .skill-tree {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}
@media (min-width: 768px) {
  .page-products .skill-tree {
    gap: var(--spacing-md);
  }
}
.page-products .skill-tree__node {
  flex: 1 1 200px;
  min-width: 180px;
  border: 2px solid var(--clr-card-border);
  background: var(--page-bg);
  transition: border-color 0.2s, transform 0.2s;
}
.page-products .skill-tree__node[open] {
  border-color: var(--page-accent);
}
.page-products .skill-tree__summary {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  list-style: none;
}
.page-products .skill-tree__summary::-webkit-details-marker {
  display: none;
}
.page-products .skill-tree__summary:focus-visible {
  outline: 2px solid var(--page-accent);
  outline-offset: 2px;
}
.page-products .skill-tree__icon {
  color: var(--page-accent);
  flex-shrink: 0;
}
.page-products .skill-tree__label {
  line-height: 1.2;
}
.page-products .skill-tree__detail {
  padding: 0 var(--spacing-sm) var(--spacing-sm);
  font-size: 0.95rem;
  line-height: 1.5;
}
.page-products .skill-tree__img {
  max-width: 100%;
  height: auto;
  margin-top: var(--spacing-xs);
  border: 1px solid var(--clr-card-border);
}

/* 资料库与产品线入口 */
.page-products .product-lines {
  margin-bottom: var(--spacing-xl);
}
.page-products .product-lines__intro {
  margin-bottom: var(--spacing-lg);
  font-size: 1.05rem;
}
.page-products .product-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}
@media (min-width: 600px) {
  .page-products .product-cards {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .page-products .product-cards {
    grid-template-columns: repeat(4, 1fr);
  }
}
.page-products .product-card {
  border: 2px solid var(--clr-card-border);
  background: var(--page-card-bg);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s, transform 0.3s;
}
.page-products .product-card:hover,
.page-products .product-card:focus-within {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}
.page-products .product-card__img {
  width: 100%;
  height: auto;
  display: block;
  border-bottom: 2px solid var(--clr-card-border);
  object-fit: cover;
  aspect-ratio: 4/3;
}
.page-products .product-card__body {
  padding: var(--spacing-sm);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.page-products .product-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0;
}
.page-products .product-card__desc {
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
  flex: 1;
}
.page-products .product-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ALLWINCITY 平台 */
.page-products .platform-section {
  margin-bottom: var(--spacing-xl);
  border: 2px solid var(--clr-card-border);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, #FFF5E6 0%, #FFF 50%, #F0F5FF 100%);
}
.page-products .platform-section__inner {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
@media (min-width: 768px) {
  .page-products .platform-section__inner {
    flex-direction: row;
    align-items: center;
  }
}
.page-products .platform-section__content {
  flex: 1;
}
.page-products .platform-features {
  list-style: none;
  padding: 0;
  margin: var(--spacing-sm) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.page-products .platform-features li {
  padding-left: 1.5em;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23F28C28' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E") left center no-repeat;
  background-size: 1em;
  line-height: 1.6;
}
.page-products .platform-cta {
  font-weight: 600;
  margin-top: var(--spacing-sm);
}
.page-products .platform-cta a {
  color: var(--page-accent);
  text-decoration: underline;
  transition: color 0.2s;
}
.page-products .platform-cta a:hover {
  color: var(--page-accent-hover);
}
.page-products .platform-section__media {
  flex: 0 0 auto;
  max-width: 100%;
  margin: 0;
}
@media (min-width: 768px) {
  .page-products .platform-section__media {
    max-width: 45%;
  }
}
.page-products .platform-image {
  max-width: 100%;
  height: auto;
  border: 2px solid var(--clr-card-border);
}
.page-products .platform-caption {
  font-size: 0.85rem;
  color: var(--clr-card-border);
  margin-top: 0.25em;
  text-align: center;
}

/* 内链导航 */
.page-products .internal-links {
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--clr-card-border);
  margin-bottom: var(--spacing-md);
}
.page-products .internal-links__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* 通用按钮覆盖 */
.page-products .btn {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 2px solid var(--page-accent);
  background: transparent;
  color: var(--page-accent);
  padding: var(--spacing-xs) var(--spacing-sm);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 0.85rem;
  white-space: nowrap;
}
.page-products .btn:hover,
.page-products .btn:focus {
  background: var(--page-accent);
  color: var(--page-bg);
  border-color: var(--page-accent);
}
.page-products .btn--outline {
  background: transparent;
  border: 2px solid var(--page-accent);
  color: var(--page-accent);
}
.page-products .btn--outline:hover {
  background: var(--page-accent);
  color: var(--page-bg);
}

/* 移动端适配：小屏边距调整 */
@media (max-width: 599px) {
  .page-products {
    padding: var(--spacing-sm);
    padding-top: calc(var(--nav-height) + var(--spacing-sm));
  }
  .page-products .service-ecosystem,
  .page-products .platform-section {
    padding: var(--spacing-sm);
  }
  .page-products .skill-tree__node {
    min-width: 100%;
  }
  .page-products .product-card__img {
    aspect-ratio: auto;
  }
}

/* 确保图像响应式 */
.page-products img {
  max-width: 100%;
  height: auto;
  display: block;
}
/* 移除默认 details 标记在某些浏览器中的额外样式 */
.page-products .skill-tree__node details {
  display: block;
}
.page-products .skill-tree__node[open] .skill-tree__summary {
  color: var(--page-accent);
}