* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            text-decoration: none;
            font-family: "Microsoft Yahei", sans-serif;
        }

.content{
    padding-left: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

        .login-body {
            background-color: #f5f5f5;
            display: flex;
            width: 100%;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
        }

        .login-container {
            background-color: white;
            width: 100%;
            max-width: 400px;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .login-title {
            text-align: center;
            font-size: 24px;
            margin-bottom: 25px;
            color: #333;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #555;
            font-size: 16px;
        }

        .form-group input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        .form-group input:focus {
            outline: none;
            border-color: #4CAF50;
            box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
        }

        /* 报错信息样式：左对齐输入框，红色提示 */
        .error-message {
          display: block; /* 独占一行，在输入框下方 */
          margin-top: 5px; /* 与输入框的间距 */
          color: #d9534f; /* 红色报错色 */
          font-size: 12px;
        }

        .login-btn {
            width: 100%;
            padding: 12px;
            background-color: #1a16db;
            color: white;
            border: none;
            border-radius: 4px;
            font-size: 16px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .login-btn:hover {
            background-color: #2a67d9;
        }

        .login-footer {
            text-align: center;
            margin-top: 15px;
            font-size: 13px;
            color: #777;
        }