body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #f0f4f8 0%, #e6f2ff 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    color: #2c3e50;
}

h1 {
    color: #3498db;
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

label {
    display: inline-block;
    margin-right: 10px;
    font-weight: bold;
    color: #34495e;
}

input, select {
    padding: 10px;
    margin: 5px 0;
    border: 2px solid #3498db;
    border-radius: 6px;
    transition: all 0.3s ease;
    width: 250px;
}

input:focus, select:focus {
    outline: none;
    border-color: #2980b9;
    box-shadow: 0 0 8px rgba(52, 152, 219, 0.3);
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

button:hover {
    background-color: #2980b9;
    transform: scale(1.05);
}

table {
    width: 80%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
}

table th {
    background-color: #3498db;
    color: white;
    padding: 12px;
    text-align: left;
}

table tr:nth-child(even) {
    background-color: #f1f8ff;
}

table tr:nth-child(odd) {
    background-color: #ffffff;
}

table td {
    padding: 10px;
    border-bottom: 1px solid #e6e6e6;
}

/* 响应式设计 */
@media screen and (max-width: 600px) {
    body {
        padding: 10px;
    }

    input, select {
        width: 100%;
    }

    table {
        width: 95%;
    }
}