/* 登录页面样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f7fa;
}

/* 登录容器 */
.login-container {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    width: 420px;
    max-width: 90%;
    padding: 40px;
}

/* Logo区域 */
.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo-icon {
    width: 96px;
    height: 96px;
}

.logo h1 {
    font-size: 24px;
    color: #333;
    margin-top: 10px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #666;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #1890ff;
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.1);
}

/* 登录按钮 */
.btn-login {
    width: 100%;
    padding: 12px;
    background: #1890ff;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-login:hover {
    background: #40a9ff;
}

/* 错误提示 */
.error {
    background: #fff2f0;
    border: 1px solid #ffccc7;
    color: #ff4d4f;
    border-radius: 8px;
    margin: 20px 0;
    padding: 10px;
    font-size: 13px;
}

.error::before {
    content: '❌';
    font-size: 12px;
    margin-right: 10px;
}

/* 页脚 */
.footer {
    margin-top: 30px;
    text-align: center;
    font-size: 13.9px;
    color: #999;
}

.footer a {
    color: #1890ff;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}