body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e9f0 100%);
    margin: 0;
    padding: 20px 0;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(230, 33, 42, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(230, 33, 42, 0.05) 0%, transparent 20%);
    background-size: 100% 100%;
    background-attachment: fixed;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-top: 4px solid #E6212A;
    backdrop-filter: blur(5px);
    position: relative;
}

h1 {
    text-align: center;
    color: #E6212A;
    margin-bottom: 30px;
    font-weight: 700;
    font-size: 28px;
    letter-spacing: 1px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* 品牌标志样式 */
.brand-logo {
    display: block;
    max-width: 180px;
    margin: 0 auto 20px;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.brand-logo:hover {
    opacity: 1;
}

.form-group {
    margin-bottom: 15px;
    padding: 15px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
    transition: transform 0.2s, box-shadow 0.2s;
}

.form-group:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: all 0.3s ease;
    background-color: #fff;
}

/* 价格结果高亮 */
.price-result {
    background-color: #f8f9fa;
    border-left: 4px solid #E6212A;
}

/* 分组标题 */
.form-section {
    font-size: 18px;
    font-weight: 700;
    color: #E6212A;
    margin: 30px 0 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f0f0f0;
}

.form-control:focus {
    outline: none;
    border-color: #E6212A;
    box-shadow: 0 0 0 2px rgba(230, 33, 42, 0.2);
    transform: translateY(-1px);
}

.form-control:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23E6212A' viewBox='0 0 16 16'%3E%3Cpath d='M8 11.5a.5.5 0 0 1-.5-.5V5a.5.5 0 0 1 1 0v6a.5.5 0 0 1-.5.5zm-2.5 0a.5.5 0 0 1-.5-.5V3a.5.5 0 0 1 1 0v8a.5.5 0 0 1-.5.5zm5 0a.5.5 0 0 1-.5-.5V7a.5.5 0 0 1 1 0v4a.5.5 0 0 1-.5.5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 12px;
    cursor: pointer;
}

input[type='number'].form-control {
    -moz-appearance: textfield;
}

input[type='number'].form-control::-webkit-inner-spin-button,
input[type='number'].form-control::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[readonly].form-control {
    background-color: #f7f7f7;
    cursor: not-allowed;
    color: #666;
    font-weight: 500;
    border: 1px solid #eee;
}

/* 添加微动画效果 */
.form-control {
    position: relative;
    overflow: hidden;
}

.form-control:after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(230, 33, 42, 0.1), transparent);
    transition: all 0.5s;
}

.form-control:focus:after {
    left: 100%;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
        margin: 10px;
    }

    h1 {
        font-size: 24px;
    }

    .form-group {
        margin-bottom: 20px;
        padding-bottom: 10px;
    }

    .form-control {
        padding: 10px 12px;
        font-size: 14px;
    }
}

/* 品牌特色样式 */
.deal-tag {
    display: inline-block;
    background-color: #E6212A;
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    margin-left: 8px;
    vertical-align: middle;
    animation: pulse 2s infinite;
}

/* 英斯派车型特色装饰 */
.container::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(230, 33, 42, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
}

.container::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: -10px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(230, 33, 42, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
}

/* 动画效果 */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(230, 33, 42, 0.4);
    }
    70% {
        box-shadow: 0 0 0 5px rgba(230, 33, 42, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(230, 33, 42, 0);
    }
}

/* 价格高亮样式 */
.price-highlight {
    color: #E6212A;
    font-weight: bold;
}

/* 添加按钮悬停效果 */
button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}