/* 修复会话提示导致的布局问题 */
body {
    padding-top: 60px;
    font-family: 'Segoe UI', Roboto, sans-serif;
    background-color: #f8f9fc;
}

/* 导航栏修复 */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 登录框居中 */
.login-container {
    max-width: 400px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0,0,0,0.05);
}

/* 错误提示样式 */
.alert-notice {
    position: fixed;
    top: 70px;
    right: 20px;
    z-index: 1000;
    width: 300px;
}