/* 网站头部样式 */
.site-header {
    background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    padding: 16px 20px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
    flex-shrink: 0;  /* 防止被压缩 */
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 6px;
}

.site-logo {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.site-title {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    letter-spacing: -0.5px;
}

.site-tagline {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    font-weight: 500;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .site-header {
        padding: 15px;
    }
    
    .site-logo {
        width: 36px;
        height: 36px;
    }
    
    .site-title {
        font-size: 24px;
    }
    
    .site-tagline {
        font-size: 12px;
    }
}