:root {
    --primary-color: #FFD700;
    --secondary-color: #4A90E2;
    --text-color: #333333;
    --background-color: #f5f5f5;
    --card-hover-transition: transform 0.3s ease;
}

/* 全局样式 */
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color 0.3s ease;
}

/* 素材卡片样式 */
.material-card {
    border-radius: 8px;
    overflow: hidden;
    transition: var(--card-hover-transition);
    background-color: white;
}

.material-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.material-card .preview-image {
    height: 180px;
    overflow: hidden;
}

.material-card .preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.material-card:hover .preview-image img {
    transform: scale(1.05);
}

.material-card .badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--primary-color);
    color: black;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.material-card .price {
    color: #e53e3e;
    font-weight: bold;
}

.material-card .vip-price {
    color: var(--primary-color);
    font-weight: bold;
}

/* 页面切换动画 */
.page-transition {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 加载进度条 */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background-color: var(--primary-color);
    z-index: 9999;
    transition: width 0.3s ease;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .material-card .preview-image {
        height: 140px;
    }
}