<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>用户登录 - 成果录入系统</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .login-container {
            background: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 400px;
        }

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

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

        .login-header p {
            color: #666;
            font-size: 14px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: #333;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
        }

        .login-btn {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            cursor: pointer;
            transition: transform 0.2s;
        }

        .login-btn:hover {
            transform: translateY(-2px);
        }

        .flash-messages {
            margin-bottom: 20px;
        }

        .flash-message {
            padding: 10px;
            border-radius: 5px;
            margin-bottom: 10px;
        }

        .flash-message.error {
            background-color: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }

        .flash-message.success {
            background-color: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }

        .flash-message.info {
            background-color: #d1ecf1;
            color: #0c5460;
            border: 1px solid #bee5eb;
        }

        .login-footer {
            text-align: center;
            margin-top: 20px;
            color: #666;
            font-size: 12px;
        }
    </style>
</head>
<body>
    <div class="login-container">
        <div class="login-header">
            <h1>用户登录</h1>
            <p>成果录入系统</p>
        </div>

        <!-- Flash消息显示 -->
        {% with messages = get_flashed_messages(with_categories=true) %}
            {% if messages %}
                <div class="flash-messages">
                    {% for category, message in messages %}
                        <div class="flash-message {{ category }}">{{ message }}</div>
                    {% endfor %}
                </div>
            {% endif %}
        {% endwith %}

        <form method="POST">
            <div class="form-group">
                <label for="username">用户名</label>
                <input type="text" id="username" name="username" required>
            </div>

            <div class="form-group">
                <label for="password">密码</label>
                <input type="password" id="password" name="password" required>
            </div>

            <button type="submit" class="login-btn">登录</button>
        </form>

        <div class="login-footer">
            <p>默认管理员账号：admin / admin</p>
        </div>
    </div>
</body>
</html>