/* 登录页面样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}

body {
    background-color: #f5f7fa;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #333;
}

.login-container {
    background-color: white;
    width: 100%;
    max-width: 400px;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    margin-top: 15px;
    font-size: 24px;
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.btn {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

.message {
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.message-error {
    background-color: #ffebee;
    border-left: 4px solid #e53935;
    color: #c62828;
}

.message-success {
    background-color: #e8f5e9;
    border-left: 4px solid #4caf50;
    color: #2e7d32;
}