body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
}

.calculator-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.input-section {
    flex: 1;
    min-width: 300px;
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.result-section {
    flex: 1;
    min-width: 300px;
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.input-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

.calculate-btn {
    width: 100%;
    margin-top: 20px;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
}

.calculate-btn:hover {
    background-color: #2980b9;
}

.result-item {
    margin-bottom: 15px;
    padding: 10px;
    border-radius: 4px;
    background-color: #f8f9fa;
}

.result-label {
    font-weight: 600;
    color: #2c3e50;
}

.result-value {
    float: right;
    font-weight: bold;
}

.highlight {
    background-color: #e8f4fd;
    border-left: 4px solid #3498db;
}

.info-section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.info-section h3 {
    color: #2c3e50;
    margin-top: 0;
}

.info-section p {
    margin: 8px 0;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .calculator-container {
        flex-direction: column;
    }
    
    .input-section, .result-section {
        width: 100%;
    }
}