/* 首页轮播图 */
.home-banner {
  width: 100%;
  overflow: hidden;
}

.home-banner__slider {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.home-banner__track {
  display: flex;
  transition: transform 0.5s ease;
}

.home-banner__slide {
  flex: 0 0 100%;
  display: block;
  width: 100%;
  line-height: 0;
  background: #f0f4f8;
}

.home-banner__slide img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 610px;
}

.home-banner__slider .home-banner__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.35);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, background 0.2s ease;
  z-index: 2;
  cursor: pointer;
}

.home-banner__slider:hover .home-banner__arrow {
  opacity: 1;
  visibility: visible;
}

.home-banner__slider .home-banner__arrow:hover {
  background: rgba(255, 255, 255, 0.55);
}

.home-banner__arrow--prev {
  left: 32px;
}

.home-banner__arrow--next {
  right: 32px;
}

.home-banner__dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.home-banner__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.home-banner__dot--active {
  width: 24px;
  border-radius: 4px;
  background: #ffffff;
}

/* 新闻推荐 */
.home-news {
  padding: var(--spacing-2xl) 0;
  background: #ffffff;
}

.home-news__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: #222222;
  margin-bottom: var(--spacing-2xl);
}

.home-news__layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--spacing-xl);
  align-items: stretch;
}

.home-news__cover {
  display: block;
  overflow: hidden;
  line-height: 0;
}

.home-news__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}


.home-news__card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  padding: var(--spacing-lg) var(--spacing-md);
  border: 1px solid transparent;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

.home-news__card:hover {
  box-shadow: 0 8px 32px rgba(88, 166, 247, 0.18);
  border-color: rgba(88, 166, 247, 0.15);
  transform: translateY(-3px);
}

.home-news__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.home-news__item {
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.home-news__link {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-xs);
  border-radius: var(--radius-md);
  color: #333333;
  font-size: var(--font-size-base);
  line-height: 1.6;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.home-news__item:hover .home-news__link {
  background: #f5f8fc;
}

.home-news__item:hover .home-news__text {
  color: #58a6f7;
}

.home-news__icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  object-fit: contain;
  margin-top: 2px;
}

.home-news__prefix {
  flex-shrink: 0;
  width: 32px;
  display: flex;
  justify-content: center;
  padding-top: 10px;
}

.home-news__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #999999;
}

.home-news__text {
  flex: 1;
  color: #333333;
  transition: color var(--transition-fast);
}

/* 央国企课程 */
.home-soe {
  padding: var(--spacing-2xl) 0 var(--spacing-3xl);
  background: #ffffff;
}

.home-soe__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: #222222;
  margin-bottom: var(--spacing-2xl);
}

.home-soe__layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: var(--spacing-xl);
  align-items: stretch;
}

#soeFeatured {
  display: flex;
  min-height: 100%;
}

.home-soe__featured {
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
  min-height: 100%;
  background: #ffffff;
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-fast);
}

.home-soe__featured:hover {
  box-shadow: var(--shadow-md);
}

.home-soe__featured-cover {
  flex: 1;
  min-height: 0;
  background: #f0f0f0;
}

.home-soe__featured-body {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-border-light);
}

.home-soe__featured-title {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: #333333;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.home-soe__featured:hover .home-soe__featured-title {
  color: #58a6f7;
}

.home-soe__list-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #ffffff;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  overflow: visible;
}

.home-soe__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.home-soe__item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: var(--spacing-xl);
  right: var(--spacing-xl);
  bottom: 0;
  height: 1px;
  background: var(--color-border-light);
}

.home-soe__item:hover {
  background: #ffffff;
  box-shadow: var(--shadow-md);
  z-index: 1;
}

.home-soe__item-cover {
  width: 120px;
  height: 90px;
  flex-shrink: 0;
  background: #f0f0f0;
}

.home-soe__cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  color: #bbbbbb;
  font-size: var(--font-size-xs);
}

.home-soe__cover-icon {
  width: 32px;
  height: 32px;
  opacity: 0.6;
}

.home-soe__item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.home-soe__item-title {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: #333333;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition-fast);
}

.home-soe__item:hover .home-soe__item-title {
  color: #58a6f7;
}

.home-soe__card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.home-soe__class-type {
  font-size: var(--font-size-sm);
  color: #999999;
}

.home-soe__students {
  font-size: var(--font-size-sm);
  color: #999999;
  flex-shrink: 0;
}

/* 课程分类 */
.home-category__layout {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: flex-end;
}

.home-category__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--spacing-2xl);
}

.home-category__name {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: #222222;
  margin-bottom: var(--spacing-xl);
}

.home-category__name a {
  color: inherit;
  text-decoration: none;
}

.home-category__name a:hover {
  color: var(--color-primary);
}

.home-category__featured-link {
  display: block;
  width: 100%;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.home-category__row {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
  line-height: 1.8;
}

.home-category__row--desc .home-category__value {
  text-align: justify;
}

.home-category__label {
  flex-shrink: 0;
  font-weight: 600;
  color: #333333;
}

.home-category__value {
  color: #666666;
}

.home-category__thumbs {
  display: flex;
  gap: var(--spacing-md);
}

.home-category__thumb {
  flex: 1;
  min-width: 0;
  max-width: 168px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  overflow: visible;
  transition: opacity var(--transition-fast);
}

.home-category__thumb:not(.is-active) {
  opacity: 0.65;
}

.home-category__thumb:hover {
  opacity: 0.85;
}

.home-category__thumb.is-active {
  opacity: 1;
}

.home-category__thumb.is-active .home-category__photo-placeholder {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.home-category__photo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: #e8e8e8;
  border-radius: var(--radius-md);
  color: #c0c0c0;
}

.home-category__thumb .home-category__photo-placeholder {
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base);
}

.home-category__photo-placeholder svg {
  width: 36%;
  height: 36%;
}

.home-category__featured {
  flex-shrink: 0;
  width: 315px;
  height: 420px;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  background: #f0f0f0;
}

.home-category__featured .home-category__photo-placeholder {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 0;
}

.home-category__featured .home-category__photo-placeholder svg {
  width: 120px;
  height: 120px;
}


/* Course grid */
.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-white);
}

.feature-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.feature-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Teachers */
.teacher-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.teacher-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.teacher-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.teacher-card__avatar {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  margin: 0 auto var(--spacing-md);
  overflow: hidden;
  border: 3px solid var(--color-border-light);
}

.teacher-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.teacher-card__name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.teacher-card__title {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.teacher-card__stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.news-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.news-card__cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.news-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card__body {
  padding: var(--spacing-lg);
}

.news-card__category {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.news-card__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--spacing-4xl) 0;
  text-align: center;
  color: var(--color-text-white);
}

.cta-section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.cta-section__desc {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-2xl);
}

@media (max-width: 1024px) {
  .home-news__layout,
  .home-soe__layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .home-category__layout {
    flex-direction: column;
    align-items: stretch;
  }

  .home-category__featured {
    width: 100%;
    max-width: 315px;
    height: auto;
    margin: 0 auto;
  }

  .home-category__featured .home-category__photo-placeholder {
    aspect-ratio: 3 / 4;
    height: auto;
  }

  .course-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-grid,
  .teacher-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .home-banner__slide img {
    max-height: 360px;
  }

  .home-banner__arrow {
    display: none;
  }

  .home-category__thumbs {
    flex-wrap: wrap;
  }

  .home-category__thumb {
    max-width: calc(50% - var(--spacing-sm));
  }

  .course-grid,
  .news-grid,
  .feature-grid,
  .teacher-grid {
    grid-template-columns: 1fr;
  }
}