/* 登录页面样式 */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

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

.login-header h1 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 28px;
}

.login-header p {
    color: #666;
    margin: 0;
}

.login-form {
    margin-top: 30px;
}

.back-link {
    text-align: center;
    margin-top: 20px;
}

.back-link a {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.back-link a:hover {
    opacity: 1;
}