* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #f4f4f4;
}

.container {
    max-width: 100%;
    padding: 20px;
}

.add-form, .customer-list {
    background: white;
    padding: 20px;
    margin: 20px 0;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

input, textarea, button {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

button {
    background: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

.customer-item {
    border-bottom: 1px solid #eee;
    padding: 15px 0;
}

.customer-item:last-child {
    border-bottom: none;
}

/* 添加成功提示样式 */
.success-message {
    background: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 5px;
    margin: 15px 0;
    border: 1px solid #c3e6cb;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 5px;
    margin: 15px 0;
    border: 1px solid #f5c6cb;
}