.vsb-container {
    text-align: center;
    font-family: 'Arial', sans-serif;
    /* padding: 40px 20px; */
    /* max-width: 1200px; */
    max-width: 100%;
    margin: 0 auto;
}

.vsb-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1a202c;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.vsb-subtitle {
    font-size: 1.1rem;
    color: #718096;
    margin-bottom: 35px;
}

.vsb-form-box {
    /* background: #ffffff;
    border: 1px solid #e2e8f0; */
    /* padding: 30px; */
    border-radius: 4px;
    /* box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); */
}

.vsb-fields-wrapper {
    /* display: flex;
    align-items: center;
    flex-wrap: wrap; */
    gap: 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr); 
    grid-template-rows: auto auto; 
}

.vsb-field {
    flex: 1;
    /*min-width: 200px;*/
}

.vsb-field select {
    width: 100%;
    height: 43px;
    padding: 0 20px;
    font-size: 1rem;
    color: #2d3748;
    background-color: #fff;
    border: 1px solid #cbd5e0;
    border-radius: 4px;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.vsb-field select:focus {
    border-color: #f6ad55;
    outline: none;
}

.vsb-field select:disabled {
    background-color: #edf2f7;
    color: #a0aec0;
    cursor: not-allowed;
}


.vsb-submit-btn {
    background-color: #1CDCE8; 
    color: #fff;
    border: none;
    height: 43px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

.vsb-submit-btn:hover {
    background-color: #1CDCE8;
}

/* 响应式手机端适配 */
@media (max-width: 768px) {
    
    
    .vsb-fields-wrapper {
        /*flex-direction: column;*/
        gap: 15px;
        grid-template-columns: repeat(1, 1fr); 
    }
    

    .vsb-field, .vsb-action, .vsb-submit-btn {
        width: 100%;
    }
}