/* HOME LAYOUT */
.home-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}
@media (min-width: 768px) {
  .home-layout {
    grid-template-columns: 1fr 240px;
  }
}
@media (min-width: 1024px) {
  .home-layout {
    grid-template-columns: 1fr 280px;
  }
}
@media (min-width: 1280px) {
  .home-layout {
    grid-template-columns: 1fr 300px;
  }
}
@media (min-width: 1400px) {
  .home-layout {
    grid-template-columns: 1fr 320px;
  }
}

.home-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
@media (min-width: 768px) {
  .home-sidebar {
    position: sticky;
    top: calc(var(--navbar-height) + 16px);
  }
}

/* SECTION HEADER */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title-bar {
  display: inline-block;
  width: 4px;
  height: 20px;
  border-radius: 2px;
  flex-shrink: 0;
  background: linear-gradient(to bottom, var(--accent), var(--accent-light));
}
.section-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}
.section-more:hover {
  opacity: 0.7;
}

/* ARTICLE CARDS (首页列表) */
.article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1280px) {
  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  display: flex;
  flex-direction: column;
  border-radius: 22px;
  overflow: hidden;
  background: var(--surface-1-bg);
  border: 1px solid var(--surface-border);
  box-shadow: var(--surface-shadow-2);
  transition:
    transform 0.3s,
    box-shadow 0.3s;
  text-decoration: none;
  color: inherit;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--surface-shadow-1);
}
.article-card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
  flex-shrink: 0;
}
.article-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.article-card:hover .article-card-cover img {
  transform: scale(1.05);
}
.article-card-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.article-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px;
  gap: 12px;
}
.article-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.badge-category {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: var(--accent-tint);
  color: var(--accent);
}
.badge-tag {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  background: rgba(0, 122, 255, 0.1);
  color: #0a7aff;
}
.badge-pinned {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(255, 59, 48, 0.12);
  color: #ff3b30;
}
.badge-gray {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  background: var(--surface-3-bg);
  color: var(--text-secondary);
}
.badge-blue {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  background: var(--blue-tint);
  color: var(--blue);
}
.badge-green {
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  background: rgba(52, 199, 89, 0.12);
  color: var(--green);
}
.article-card-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.2px;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s;
  margin: 0;
}
.article-card:hover .article-card-title {
  color: var(--accent);
}
.article-card-summary {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
  min-height: 41px;
}

@media (max-width: 640px) {
  .article-card-title {
    -webkit-line-clamp: 2;
    line-clamp: 2;
    font-size: 15px;
  }
  .article-card-summary {
    display: none;
    min-height: 0;
  }
  .article-card-body {
    padding: 14px 16px;
    gap: 8px;
  }
}
.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  margin-top: auto;
  border-top: 1px solid var(--surface-border);
}
.article-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-tertiary);
}
.article-card-read,
.read-more-btn {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  transition:
    color 0.2s,
    transform 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
}
.article-card:hover .article-card-read {
  color: var(--accent) !important;
  transform: translateX(4px);
}

/* HOME CAROUSEL */
.home-carousel {
  position: relative;
  overflow: hidden;
  height: 380px;
  margin-bottom: 0;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--surface-shadow-1);
}
@media (max-width: 768px) {
  .home-carousel {
    height: 280px;
  }
}
@media (min-width: 1280px) {
  .home-carousel {
    height: 440px;
  }
}
.carousel-track {
  position: relative;
  width: 100%;
  height: 100%;
}
.carousel-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.carousel-slide.active {
  opacity: 1;
}
.carousel-full-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  text-decoration: none;
  color: inherit;
  z-index: 1;
}
.carousel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.7));
}
.carousel-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px 40px;
  color: #fff;
  pointer-events: none;
}
@media (max-width: 768px) {
  .carousel-content {
    padding: 40px 24px 20px;
  }
}
.carousel-title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 26px;
  font-weight: 800;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  color: #fff;
  text-decoration: none;
  margin-bottom: 8px;
  line-height: 1.3;
  transition: opacity 0.2s;
}
@media (max-width: 768px) {
  .carousel-title {
    font-size: 19px;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
}
.carousel-full-link:hover .carousel-title {
  opacity: 0.85;
}
.carousel-subtitle {
  font-size: 15px;
  opacity: 0.85;
  margin-bottom: 12px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
@media (max-width: 768px) {
  .carousel-subtitle {
    font-size: 13px;
    -webkit-line-clamp: 1;
    line-clamp: 1;
    margin-bottom: 10px;
  }
}
.carousel-btn {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s;
}
.carousel-full-link:hover .carousel-btn {
  background: rgba(255, 255, 255, 0.35);
}
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  z-index: 2;
}
.carousel-prev {
  left: 16px;
}
.carousel-next {
  right: 16px;
}
.carousel-arrow:hover {
  background: rgba(0, 0, 0, 0.55);
}
.carousel-dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 2;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.2s;
}
.carousel-dot.active {
  background: #fff;
  transform: scale(1.3);
}