/* 返回作品集按钮样式 */
.back-to-portfolio {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 9999;
    background: rgba(102, 126, 234, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    padding: 8px 16px;
    transition: all 0.3s ease;
}

.back-to-portfolio a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px;
}

.back-to-portfolio:hover {
    background: rgba(102, 126, 234, 1);
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.back-to-portfolio a:hover {
    text-decoration: none;
    color: white;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .back-to-portfolio {
        top: 10px;
        left: 10px;
        padding: 6px 12px;
    }
    
    .back-to-portfolio a {
        font-size: 12px;
    }
}