/* 统一背景样式 - 以News.html为参照 */
.hero-banner {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 50%, #1abc9c 100%);
    background-size: 400% 400%;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/product/background.webp') center/cover;
    opacity: 0.2;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero-banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.8) 0%, rgba(41, 128, 185, 0.8) 50%, rgba(26, 188, 156, 0.8) 100%);
}

.banner-titles {
    text-align: center;
    color: white;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1.2s ease-out;
}

.banner-titles h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    font-weight: 800;
    letter-spacing: 3px;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-titles h2 {
    font-size: 2rem;
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    opacity: 0.95;
    letter-spacing: 1px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-banner {
        height: 350px;
    }
    
    .banner-titles h1 {
        font-size: 3rem;
        letter-spacing: 2px;
    }
    
    .banner-titles h2 {
        font-size: 1.6rem;
    }
}

/* 主内容区域样式 */
.product-content {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.content-container {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 30px;
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.product-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px;
    border-bottom: 1px solid #eee;
    gap: 30px;
    text-decoration: none;
    color: inherit;
    transition: background-color 0.2s;
}

.product-item:hover {
    background-color: #f8f9fa;
}

.product-info {
    flex: 1;
}

.product-date {
    color: #666;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 5px;
}

.product-title {
    font-size: 1.4rem;
    color: #333;
    margin-bottom: 10px;
}

.product-desc {
    color: #666;
    line-height: 1.6;
}

.download-btn {
    background: #3498db;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.3s;
}

.download-btn:hover {
    background: #2980b9;
}

.product-image-link {
    display: block;
    width: 120px;
    height: 90px;
    overflow: hidden;
    border-radius: 4px;
    transition: transform 0.3s;
}

.product-image-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-image-link:hover {
    transform: scale(1.05);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    gap: 10px;
}

.pagination a {
    color: #333;
    padding: 8px 16px;
    text-decoration: none;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.pagination a.active {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}

.pagination a:hover:not(.active) {
    background-color: #f8f9fa;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .download-btn {
        align-self: flex-end;
    }
    
    .product-image-link {
        width: 100px;
        height: 75px;
        align-self: flex-end;
    }
}