/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* 认证容器 */
.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.auth-card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.auth-header {
    padding: 30px 20px;
    text-align: center;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.auth-header h1 {
    color: #0366d6;
    margin-bottom: 8px;
    font-size: 24px;
}

.auth-header p {
    color: #6a737d;
    font-size: 14px;
}

.auth-form {
    padding: 30px 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
}

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

.form-group input:focus {
    border-color: #0366d6;
    outline: none;
}

.form-error {
    color: #d73a49;
    font-size: 14px;
    margin-bottom: 15px;
    min-height: 20px;
}

/* 按钮样式 */
.btn-primary {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #0366d6;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-bottom: 20px;
}

.btn-primary:hover {
    background-color: #0256b9;
}

/* 页脚 */
.auth-footer {
    text-align: center;
    font-size: 14px;
    color: #6a737d;
}

.auth-footer a {
    color: #0366d6;
    text-decoration: none;
}

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

/* 响应式调整 */
@media (max-width: 480px) {
    .auth-container {
        padding: 10px;
    }
    
    .auth-header {
        padding: 20px 15px;
    }
    
    .auth-form {
        padding: 20px 15px;
    }
}