/* 首页特有样式 */
/* 英雄区域样式 */
.hero {
  padding: 4rem 5%;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(248, 249, 250, 0.9)), url('https://images.unsplash.com/photo-1618005198919-d3d4b5a92ead?ixlib=rb-1.2.1&auto=format&fit=crop&w=2000&q=80') center/cover no-repeat;
  text-align: center;
  margin-bottom: 2rem;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  color: var(--text);
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.search-bar {
  display: flex;
  max-width: 600px;
  margin: 2rem auto;
  background: var(--card-bg);
  border-radius: 50px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  border: var(--border);
}

.search-bar input {
  flex: 1;
  padding: 1.2rem 1.5rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
}

.search-bar input:focus {
  outline: none;
}

.search-bar button {
  padding: 1.2rem 1.8rem;
  border: none;
  background: var(--accent);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 600;
}

.search-bar button:hover {
  background: var(--accent-dark);
}

/* 文章卡片样式 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
}

.article-card {
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
  border: var(--border);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.card-img {
  height: 160px;
  overflow: hidden;
}

.card-img a {
  display: block;
  width: 100%;
  height: 100%;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.article-card:hover .card-img img {
  transform: scale(1.05);
}

.card-content {
  padding: 1.2rem;
}

.category {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.card-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  line-height: 1.4;
}

.card-content h3 a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.card-content h3 a:hover {
  color: var(--accent);
}

.card-content p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.card-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 0.8rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* 特色区域样式 */
.featured {
  background: var(--secondary);
  padding: 3rem 5%;
  margin: 2rem 0;
}

.featured-article {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  border: var(--border);
}

.featured-img {
  height: 100%;
}

.featured-img a {
  display: block;
  width: 100%;
  height: 100%;
}

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

.featured-content {
  padding: 2rem;
}

.featured-content .category {
  margin-bottom: 1rem;
}

.featured-content h2 {
  font-size: 1.8rem;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.featured-content h2 a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.featured-content h2 a:hover {
  color: var(--accent);
}

.featured-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1rem;
  line-height: 1.6;
}

/* 下载中心区域 */
.downloads {
  background: var(--secondary);
  padding: 3rem 5%;
  border-radius: 16px;
  margin: 3rem 0;
}

.downloads-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.download-item {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
  border: var(--border);
}

.download-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.download-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.download-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

.download-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
}

.download-btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.download-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}