/* 底部表单样式 */
.footer-search-btn {
    cursor: pointer;
    transition: all 0.3s ease;
}

.footer-search-btn:hover {
    background-color: #0056b3;
}

.footer-search-btn:active {
    transform: scale(0.98);
}

.footer-search-input:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

/* 添加加载状态 */
.footer-search-btn.loading {
    position: relative;
    color: transparent;
}

.footer-search-btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin-top: -10px;
    margin-left: -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}