.custom-sidebar {
            box-sizing: border-box;
            font-family: "Segoe UI", "Lucida Grande", Helvetica, "Microsoft YaHei", FreeSans, Arimo, "Droid Sans", "wenquanyi micro hei", "Hiragino Sans GB", "Hiragino Sans GB W3", Roboto, Arial, sans-serif;
            /*background-color: #f4f4f4;*/
            margin: 0;
            padding: 20px;
            color: rgb(42, 51, 60);
        }

        .custom-sidebar .lefter {
            background-color: #fff;
            /*order: 1px solid rgb(42, 51, 60);*/
            border-radius: 5px;
            padding: 20px;
            width: 100%;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .custom-sidebar .sidebar-serch-box {
            margin-bottom: 20px;
        }

        .custom-sidebar .sidebar-serch-box h4 {
            margin: 0 0 10px;
        }

        .custom-sidebar .sidebar-serch-box input {
            width: calc(100% - 80px);
            padding: 10px;
            border: 1px solid rgb(42, 51, 60);
            border-radius: 4px;
        }

        .custom-sidebar .search-button {
            padding: 10px;
            border: none;
            background-color: #007bff;
            color: white;
            cursor: pointer;
            border-radius: 4px;
            display: inline-flex;
            align-items: center;
        }

        .custom-sidebar .search-button i {
            margin-right: 5px;
        }

        .custom-sidebar .nav {
            list-style: none;
            padding: 0;
        }

        @media (max-width: 768px) {
            .custom-sidebar .hidden-l { 
                display: block; 
            }
            .custom-sidebar .nav, .custom-sidebar .inner-rec-box {
                display: none; 
            }

            .custom-sidebar .lefter {
                width: 100%;
                padding: 10px;
            }

            .custom-sidebar .sidebar-serch-box input {
                width: calc(100% - 50px);
            }
        }