rand">
            <a>学术报告管理系统</a>
        </div>
        <div class="sidebar-user">
            <div class="sidebar-user-picture">
                <img alt="image" th:src="${session.loginUser.img}">
            </div>
            <div class="sidebar-user-details">
                <div class="user-name" th:text="${session.loginUser.name}"></div>
                <div class="user-role">
                    <span th:if="${session.loginUser.role == 'admin'}" th:text="${'系统管理员 【'+sess