.list2 #qrList2 {
    height: 100%;
    width: 100%;
    position: fixed;
    background-color: #fff;
    flex-direction: column;
    display: none;

    .header {
        width: 100%;
        position: relative;
        top: 0px;
        left: 0px;
        background-color: #ffffff;
        color: #00142f;
        align-items: center;
        justify-content: center;
    }

    .header .group-left {
        height: 100%;
        position: absolute;
        left: 24px;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        gap: 10px;
    }

    .header .group-left img {
        width: 30px;
        height: 30px;
    }

    .header .group-left .title {
        font-size: 24px;
        font-weight: 700;
        font-family: 'Noto Sans KR', sans-serif;
    }

    .header .group-right {
        height: 100%;
        position: absolute;
        right: 0px;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        gap: 10px;
    }

    .header .group-right .ic-img {
        padding: 8px;
        width: auto;
        height: 100%;
    }

    .header .group-right .close {
        height: 60px;
        width: 60px;
        background: url(../../common/img/viewer/list2/icon_close.png) no-repeat center;
    }

    .list-body {
        display: flex;
        flex-direction: column;
        flex: 1;
        width: 100%;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .subject-info-wrapper {
        position: relative;
        top: 0px;
        left: 0px;
        background-color: #ffeed3;
        width: 100%;
    }

    .subject-info {
        position: absolute;
        background-color: #ffeed3;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        box-sizing: border-box;
    }

    .book-cover {
        position: relative;
        overflow: hidden;
        flex-shrink: 0;
        object-fit: cover;
    }

    .book-info {
        align-self: stretch;
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }

    .edu-tag {
        align-self: stretch;
        display: flex;
        flex-direction: row;
        align-items: flex-start;
        justify-content: flex-start;
    }

    .school-level {
        display: flex;
        justify-content: center;
        align-items: center;
        background: #fff;
        color: #0057ed;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 700;
        line-height: normal;
    }

    .curriculum {
        display: flex;
        justify-content: center;
        align-items: center;
        background: #0057ed;
        color: #fff;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 700;
        line-height: normal;
    }

    .book-title {
        color: #0c0c0c;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 400;
    }

    .book-title b {
        color: #0c0c0c;
        font-family: 'Noto Sans KR';
        font-style: normal;
    }

    .tc_help {
        color: #f8995c;
        font-weight: 400;
    }

    .main-list-wrapper {
        width: 100%;
        flex: 1;
        position: relative;
    }

    .main-list {
        position: absolute;
        width: 100%;
        height: 100%;
        padding: 0 320px;
    }

    .menu-item {
        display: flex;
        flex-direction: column;
        background: #fff;
        cursor: pointer;
    }

    .menu-item .lesson {
        display: flex;
        width: 100%;
        color: #0c0c0c;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 700;
        line-height: normal;
        justify-content: space-between;
        align-items: center;
        align-self: stretch;
        border-bottom: 1px solid #dbdbdb;
    }

    .menu-item .lesson .arrow {
        position: relative;
        right: 0;
        flex-shrink: 0;
    }

    .menu-item.on .lesson {
        color: #ff6742;
    }

    .menu-item.on .lesson .arrow {
        transform: scaleY(-1);
    }

    .menu-item .sub-menu {
        width: 100%;
        align-items: center;
        align-self: stretch;
        border-bottom: 1px solid #dbdbdb;
        background: #f9f9f9;
        display: none;
    }

    .menu-item.on .sub-menu {
        display: grid;
        cursor: auto;
    }

    .sub-item {
        display: flex;
        cursor: pointer;
    }

    .sub-item .top {
        position: relative;
        border: 1px solid #dbdbdb;
        background: #e9e9e9;
    }

    .sub-item .top .empty {
        position: relative;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 1;
    }

    .sub-item .top .thumbnail {
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        border-radius: 8px;
        z-index: 2;
    }

    .sub-item .top .type {
        position: absolute;
        bottom: 0px;
        right: 0px;
        z-index: 3;
    }

    .sub-item .info {
        display: flex;
    }

    .sub-item .page {
        justify-content: center;
        align-items: center;
        color: #0c0c0c;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 400;
        border: 1px solid rgba(12, 12, 12, 0.6);
        display: flex;
        align-items: center;
    }

    .sub-item .type {
        color: #0c0c0c;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 400;
        display: flex;
        align-items: center;
    }

    .sub-item .title {
        color: #0c0c0c;
        font-family: 'Noto Sans KR';
        font-style: normal;
        font-weight: 700;
    }
}

.list2 #qrList2.show {
    display: flex;
}

@media screen and (max-width: 430px) and (orientation: portrait) {
    .list2 #qrList2 {
        .header {
            height: 40px;
        }

        .header .group-left {
            left: 20px;
            gap: 10px;
        }

        .header .group-left img {
            width: 24px;
            height: 24px;
        }

        .header .group-left .title {
            font-size: 16px;
        }

        .header .group-right {
            right: 20px;
            gap: 10px;
        }

        .header .group-right .close {
            height: 20px;
            width: 20px;
        }

        .subject-info-wrapper {
            top: 0px;
            left: 0px;
            height: 115px;

            .subject-info {
                height: 100%;
                width: 100%;
                padding: 16px;
                flex-direction: column;
                align-items: flex-start;
            }

            .book-title {
                font-size: 24px;
                line-height: 32px;
            }

            .book-title b {
                font-size: 24px;
                line-height: 32px;
            }

            .tc_help {
                font-size: 16px;
                margin-top: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 183px;

            .subject-info {
                padding: 16px;
                gap: 40px;
                flex-direction: row;
                align-items: flex-start;
            }

            .book-title {
                font-size: 24px;
                line-height: 32px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 24px;
                line-height: 32px;
            }
        }

        .book-cover {
            width: 105px;
            height: 134px;
            border-radius: 4px;
        }

        .book-info {
            gap: 0px;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }

        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }

        .main-list {
            padding: 0;
        }

        .menu-item .lesson {
            padding: 16px;
            font-size: 16px;
            line-height: 16px;
        }

        .menu-item .lesson .arrow {
            width: 20px;
            height: 20px;
        }

        .menu-item .sub-menu {
            gap: 8px;
            grid-template-columns: 1fr;
        }

        .sub-item {
            display: flex;
            flex-direction: row;
            align-items: start;
            height: 80px;
            gap: 8px;
            padding: 0 8px;
        }

        .sub-item .top {
            width: 142px;
            height: 80px;
            border-radius: 4px;
        }

        .sub-item .top .thumbnail {
            width: 142px;
            height: 80px;
            border-radius: 4px;
        }

        .sub-item .top .type {
            width: 32px;
            height: 32px;
            display: none;
        }

        .sub-item .bottom {
            width: 208px;
            height: 65px;
        }

        .sub-item .info {
            gap: 8px;
        }

        .sub-item .page {
            padding: 2px 6px;
            gap: 10px;
            font-size: 10px;
            line-height: 15px;
            border-radius: 6px;
        }

        .sub-item .type {
            font-size: 12px;
            line-height: 18px;
        }

        .sub-item .title {
            height: 42px;
            font-size: 14px;
            line-height: 16px;
            margin-top: 4px;
        }
    }
}

@media screen and (min-width: 431px) and (max-width: 820px) and (orientation: portrait) {
    .list2 #qrList2 {
        .header {
            height: 40px;
        }

        .header .group-left {
            left: 11px;
            gap: 4px;
        }

        .header .group-left img {
            width: 17px;
            height: 17px;
        }

        .header .group-left .title {
            font-size: 12px;
        }

        .header .group-right {
            gap: 4px;
        }

        .header .group-right .close {
            height: 30px;
            width: 30px;
        }

        .subject-info-wrapper {
            height: 36px;

            .subject-info {
                width: 100%;
                padding: 8px 66px;
                gap: 28px;
            }

            .book-title {
                font-size: 14px;
                line-height: 20px;
            }

            .book-title b {
                font-size: 14px;
                line-height: 20px;
            }

            .tc_help {
                font-size: 12px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 140px;

            .subject-info {
                padding: 16px 66px;
                gap: 28px;
            }

            .book-title {
                font-size: 16px;
                line-height: 24x;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 16px;
                line-height: 24px;
            }
        }

        .book-cover {
            width: 77px;
            height: 105px;
            border-radius: 6px;
        }

        .book-info {
            padding: 8px 0px;
            gap: 0;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level,
        .curriculum {
            padding: 2px 4px;
            border-radius: 4px;
            font-size: 8px;
        }

        .main-list {
            padding: 0 60px;
        }

        .menu-item .lesson {
            padding: 12px 16px;
            font-size: 12px;
        }

        .menu-item .lesson .arrow {
            width: 8px;
            height: 6px;
        }

        .menu-item .sub-menu {
            padding: 11px 16px;
            gap: 8px;
            grid-template-columns: repeat(2, 1fr);
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 200px;
            height: 112px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            width: 200px;
            height: 112px;
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 36px;
            height: 36px;
        }

        .sub-item .bottom {
            width: 200px;
        }

        .sub-item .info {
            margin-top: 12px;
            gap: 6px;
        }

        .sub-item .page {
            padding: 0px 6px;
            gap: 8px;
            font-size: 12px;
            line-height: 18px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 12px;
            line-height: 18px;
        }

        .sub-item .title {
            height: 44px;
            font-size: 15px;
            line-height: 22px;
            margin-top: 4px;
        }
    }
}

@media screen and (min-width: 821px) and (max-width: 1024px) and (orientation: portrait) {
    .list2 #qrList2 {
        .header {
            height: 56px;
        }

        .header .group-left {
            left: 16px;
            gap: 6px;
        }

        .header .group-left img {
            width: 24px;
            height: 24px;
        }

        .header .group-left .title {
            font-size: 18px;
        }

        .header .group-right {
            gap: 6px;
        }

        .header .group-right .close {
            height: 44px;
            width: 44px;
        }

        .subject-info-wrapper {
            width: 100%;
            height: 52px;

            .subject-info {
                width: 100%;
                height: 100%;
                top: 0;
                padding: 15px 104px;
                gap: 40px;
            }

            .book-title {
                font-size: 22px;
                line-height: 26px;
            }

            .book-title b {
                font-size: 22px;
                line-height: 26px;
            }

            .tc_help {
                font-size: 16px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 200px;

            .subject-info {
                padding: 24px 104px;
                gap: 40px;
            }

            .book-title {
                font-size: 24px;
                line-height: 36px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 24px;
                line-height: 36px;
            }
        }

        .book-cover {
            width: 110px;
            height: 150px;
            border-radius: 8px;
        }

        .book-info {
            padding: 12px 0px;
            gap: 0;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level,
        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }

        .main-list {
            padding: 0px 80px;
        }

        .menu-item .lesson {
            padding: 16px 24px;
            font-size: 18px;
        }

        .menu-item .lesson .arrow {
            width: 11px;
            height: 6.5px;
        }

        .menu-item .sub-menu {
            padding: 16px 24px;
            gap: 14px;
            grid-template-columns: repeat(3, 1fr);
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 200px;
            height: 112px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            width: 200px;
            height: 112px;
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 36px;
            height: 36px;
        }

        .sub-item .bottom {
            width: 200px;
        }

        .sub-item .info {
            margin-top: 12px;
            gap: 6px;
        }

        .sub-item .page {
            padding: 0px 6px;
            gap: 8px;
            font-size: 12px;
            line-height: 18px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 12px;
            line-height: 18px;
        }

        .sub-item .title {
            height: 44px;
            font-size: 15px;
            line-height: 22px;
            margin-top: 4px;
        }
    }
}

@media screen and (max-width: 931px) and (orientation: landscape) {
    .list2 #qrList2 {
        .header {
            height: 56px;
        }

        .header .group-left {
            left: 16px;
            gap: 6px;
        }

        .header .group-left img {
            width: 24px;
            height: 24px;
        }

        .header .group-left .title {
            font-size: 18px;
        }

        .header .group-right {
            gap: 6px;
        }

        .header .group-right .close {
            height: 44px;
            width: 44px;
        }

        .subject-info-wrapper {
            height: 50px;

            .subject-info {
                width: 100%;
                height: 100%;
                padding: 13px 99px;
                gap: 40px;
            }

            .book-title {
                font-size: 20px;
                line-height: 24px;
            }

            .book-title b {
                font-size: 20px;
                line-height: 24px;
            }

            .tc_help {
                font-size: 16px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 200px;
            padding: 0px 80px;

            .subject-info {
                top: 0;
                padding: 24px 24px;
                gap: 40px;
            }

            .book-title {
                font-size: 24px;
                line-height: 36px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 24px;
                line-height: 36px;
            }
        }

        .book-cover {
            width: 110px;
            height: 150px;
            border-radius: 8px;
        }

        .book-info {
            padding: 12px 0px;
            gap: 0;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level,
        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }

        .main-list {
            padding: 0 80px;
        }

        .menu-item .lesson {
            padding: 16px 24px;
            font-size: 18px;
        }

        .menu-item .lesson .arrow {
            width: 11px;
            height: 6.5px;
        }

        .menu-item .sub-menu {
            padding: 16px 24px;
            gap: 14px;
            grid-template-columns: repeat(2, 1fr);
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 240px;
            height: 135px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            width: 240px;
            height: 135px;
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 40px;
            height: 40px;
        }

        .sub-item .bottom {
            width: 240px;
        }

        .sub-item .info {
            margin-top: 14px;
            gap: 6px;
        }

        .sub-item .page {
            padding: 0px 6px;
            gap: 8px;
            font-size: 13px;
            line-height: 19px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 13px;
            line-height: 19px;
        }

        .sub-item .title {
            height: 48px;
            font-size: 16px;
            line-height: 24px;
            margin-top: 4px;
        }
    }
}

@media screen and (min-width: 932px) and (max-width: 1024px) and (orientation: landscape) {
    .list2 #qrList2 {
        .header {
            height: 56px;
        }

        .header .group-left {
            left: 16px;
            gap: 6px;
        }

        .header .group-left img {
            width: 24px;
            height: 24px;
        }

        .header .group-left .title {
            font-size: 18px;
        }

        .header .group-right {
            gap: 6px;
        }

        .header .group-right .close {
            height: 44px;
            width: 44px;
        }

        .subject-info-wrapper {
            height: 50px;

            .subject-info {
                width: 100%;
                height: 100%;
                padding: 13px 134px;
                gap: 40px;
            }

            .book-title {
                font-size: 20px;
                line-height: 24px;
            }

            .book-title b {
                font-size: 20px;
                line-height: 24px;
            }

            .tc_help {
                font-size: 16px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 200px;
            padding: 0px 110px;

            .subject-info {
                top: 0;
                padding: 24px 24px;
                gap: 40px;
            }

            .book-title {
                font-size: 24px;
                line-height: 36px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 24px;
                line-height: 36px;
            }
        }

        .book-cover {
            width: 110px;
            height: 150px;
            border-radius: 8px;
        }

        .book-info {
            padding: 12px 0px;
            gap: 0;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level,
        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }

        .main-list {
            padding: 0 110px;
        }

        .menu-item .lesson {
            padding: 16px 24px;
            font-size: 18px;
        }

        .menu-item .lesson .arrow {
            width: 11px;
            height: 6.5px;
        }

        .menu-item .sub-menu {
            padding: 16px 24px;
            gap: 14px;
            grid-template-columns: repeat(3, 1fr);
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 200px;
            height: 112px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            width: 200px;
            height: 112px;
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 36px;
            height: 36px;
        }

        .sub-item .bottom {
            width: 200px;
        }

        .sub-item .info {
            margin-top: 12px;
            gap: 6px;
        }

        .sub-item .page {
            padding: 0px 6px;
            gap: 8px;
            font-size: 12px;
            line-height: 18px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 12px;
            line-height: 18px;
        }

        .sub-item .title {
            height: 60px;
            font-size: 15px;
            line-height: 22px;
            margin-top: 4px;
        }
    }
}

@media screen and (min-width: 1025px) and (max-width: 1366px) {
    .list2 #qrList2 {
        .header {
            height: 60px;
        }

        .header .group-left {
            left: 20px;
            gap: 8px;
        }

        .header .group-left img {
            width: 28px;
            height: 28px;
        }

        .header .group-left .title {
            font-size: 20px;
        }

        .header .group-right {
            gap: 8px;
        }

        .header .group-right .close {
            height: 50px;
            width: 50px;
        }

        .subject-info-wrapper {
            height: 60px;
            font-size: 13px;

            .subject-info {
                height: 100%;
                width: 100%;
                padding: 17px 178px;
                gap: 50px;
            }

            .book-title {
                font-size: 24px;
                line-height: 28px;
            }

            .book-title b {
                font-size: 24px;
                line-height: 28px;
            }

            .tc_help {
                font-size: 18px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 220px;
            padding: 0px 146px;

            .subject-info {
                top: 0;
                padding: 28px 32px;
                gap: 50px;
            }

            .book-title {
                font-size: 28px;
                line-height: 40px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 28px;
                line-height: 40px;
            }
        }

        .book-cover {
            width: 120px;
            height: 160px;
            border-radius: 8px;
        }

        .book-info {
            padding: 14px 0;
            gap: 0;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level,
        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 13px;
        }

        .main-list {
            padding: 0 146px;
        }

        .menu-item .lesson {
            padding: 18px 32px;
            font-size: 20px;
        }

        .menu-item .lesson .arrow {
            width: 12px;
            height: 7.5px;
        }

        .menu-item .sub-menu {
            padding: 10px 20px;
            gap: 10px;
            grid-template-columns: repeat(3, 1fr);
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 240px;
            height: 135px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            width: 240px;
            height: 135px;
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 40px;
            height: 40px;
        }

        .sub-item .bottom {
            width: 240px;
        }

        .sub-item .info {
            margin-top: 14px;
            gap: 6px;
        }

        .sub-item .page {
            padding: 0px 6px;
            gap: 8px;
            font-size: 13px;
            line-height: 19px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 13px;
            line-height: 19px;
        }

        .sub-item .title {
            height: 48px;
            font-size: 16px;
            line-height: 24px;
            margin-top: 4px;
        }
    }
}

/* Desktop - FHD (1920x1080) */
@media screen and (min-width: 1367px) and (max-width: 1919px) {
    .list2 #qrList2 {
        .header {
            height: 60px;
        }

        .header .group-left {
            left: 24px;
            gap: 10px;
        }

        .header .group-left img {
            width: 30px;
            height: 30px;
        }

        .header .group-left .title {
            font-size: 24px;
        }

        .header .group-right {
            gap: 10px;
        }

        .header .group-right .close {
            height: 60px;
            width: 60px;
        }

        .subject-info-wrapper {
            height: 70px;

            .subject-info {
                width: 100%;
                height: 100%;
                padding: 16px 220px;
            }

            .book-title {
                font-size: 26px;
                line-height: 38px;
            }

            .book-title b {
                font-size: 26px;
                line-height: 38px;
            }

            .tc_help {
                font-size: 22px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 254px;
            padding: 0px 180px;

            .subject-info {
                top: 0px;
                padding: 32px 40px;
                gap: 70px;
            }

            .book-title {
                font-size: 32px;
                line-height: 45px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 32px;
                line-height: 45px;
            }
        }

        .book-cover {
            width: 148px;
            border-radius: 8px;
            height: 190px;
        }

        .book-info {
            padding: 16px 0px;
            gap: 0px;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .main-list {
            padding: 0 180px;
        }

        .menu-item .lesson {
            padding: 20px 40px;
            font-size: 24px;
        }

        .menu-item .lesson .arrow {
            width: 14.964px;
            height: 8.985px;
        }

        .menu-item .sub-menu {
            padding: 10px 20px;
            gap: 10px;
            grid-template-columns: 1fr 1fr 1fr 1fr;
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 240px;
            height: 135px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            width: 240px;
            height: 135px;
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 40px;
            height: 40px;
        }

        .sub-item .bottom {
            width: 240px;
        }

        .sub-item .info {
            margin-top: 14px;
            gap: 6px;
        }

        .sub-item .page {
            padding: 0px 6px;
            gap: 8px;
            font-size: 13px;
            line-height: 19px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 13px;
            line-height: 19px;
        }

        .sub-item .title {
            height: 48px;
            font-size: 16px;
            line-height: 24px;
            margin-top: 4px;
        }
    }
}

/* Desktop - QHD (2560x1440) */
@media screen and (min-width: 1920px) and (max-width: 2560px) {
    .list2 #qrList2 {
        .header {
            height: 60px;
        }

        .header .group-left {
            left: 24px;
            gap: 10px;
        }

        .header .group-left img {
            width: 30px;
            height: 30px;
        }

        .header .group-left .title {
            font-size: 24px;
        }

        .header .group-right {
            gap: 10px;
        }

        .header .group-right .close {
            height: 60px;
            width: 60px;
        }

        .subject-info-wrapper {
            height: 70px;

            .subject-info {
                width: 100%;
                height: 100%;
                padding: 16px 360px;
            }

            .book-title {
                font-size: 26px;
                line-height: 38px;
            }

            .book-title b {
                font-size: 26px;
                line-height: 38px;
            }

            .tc_help {
                font-size: 22px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 254px;
            padding: 0px 320px;

            .subject-info {
                top: 0px;
                padding: 32px 40px;
                gap: 70px;
            }

            .book-title {
                font-size: 32px;
                line-height: 45px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 32px;
                line-height: 45px;
            }
        }

        .book-cover {
            width: 148px;
            border-radius: 8px;
            height: 190px;
        }

        .book-info {
            padding: 16px 0px;
            gap: 0px;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .main-list {
            padding: 0 320px;
        }

        .menu-item .lesson {
            padding: 20px 40px;
            font-size: 24px;
        }

        .menu-item .lesson .arrow {
            width: 14.964px;
            height: 8.985px;
        }

        .menu-item .sub-menu {
            padding: 20px 40px;
            grid-template-columns: 1fr 1fr 1fr 1fr;
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 288px;
            height: 162px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 48px;
            height: 48px;
        }

        .sub-item .bottom {
            width: 288px;
        }

        .sub-item .info {
            margin-top: 16px;
            gap: 8px;
        }

        .sub-item .page {
            padding: 0px 8px;
            gap: 10px;
            font-size: 14px;
            line-height: 21px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 14px;
            line-height: 21px;
        }

        .sub-item .title {
            height: 52px;
            font-size: 18px;
            line-height: 27px;
            margin-top: 4px;
        }
    }
}

/* Desktop - UHD (3840x2160) */
@media screen and (min-width: 2560px) {
    .list2 #qrList2 {
        .header {
            height: 60px;
        }

        .header .group-left {
            left: 24px;
            gap: 10px;
        }

        .header .group-left img {
            width: 30px;
            height: 30px;
        }

        .header .group-left .title {
            font-size: 24px;
        }

        .header .group-right {
            gap: 10px;
        }

        .header .group-right .close {
            height: 60px;
            width: 60px;
        }

        .subject-info-wrapper {
            height: 70px;

            .subject-info {
                width: 100%;
                height: 100%;
                padding: 16px 360px;
            }

            .book-title {
                font-size: 26px;
                line-height: 38px;
            }

            .book-title b {
                font-size: 26px;
                line-height: 38px;
            }

            .tc_help {
                font-size: 22px;
                margin-left: auto;
            }
        }

        .subject-info-wrapper.cover {
            height: 254px;
            padding: 0px 320px;

            .subject-info {
                top: 0px;
                padding: 32px 40px;
                gap: 70px;
            }

            .book-title {
                font-size: 32px;
                line-height: 45px;
                margin-top: 4px;
            }

            .book-title b {
                font-size: 32px;
                line-height: 45px;
            }
        }

        .book-cover {
            width: 148px;
            border-radius: 8px;
            height: 190px;
        }

        .book-info {
            padding: 16px 0px;
            gap: 0px;
        }

        .edu-tag {
            gap: 4px;
        }

        .school-level {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .curriculum {
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }

        .main-list {
            padding: 0 320px;
        }

        .menu-item .lesson {
            padding: 20px 40px;
            font-size: 24px;
        }

        .menu-item .lesson .arrow {
            width: 14.964px;
            height: 8.985px;
        }

        .menu-item .sub-menu {
            padding: 20px 40px;
            gap: 20px;
            grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .sub-item .top {
            width: 288px;
            height: 162px;
            border-radius: 8px;
        }

        .sub-item .top .thumbnail {
            border-radius: 8px;
        }

        .sub-item .top .type {
            width: 48px;
            height: 48px;
        }

        .sub-item .bottom {
            width: 288px;
        }

        .sub-item .info {
            margin-top: 16px;
            gap: 8px;
        }

        .sub-item .page {
            padding: 0px 8px;
            gap: 10px;
            font-size: 14px;
            line-height: 21px;
            border-radius: 8px;
        }

        .sub-item .type {
            font-size: 14px;
            line-height: 21px;
        }

        .sub-item .title {
            height: 52px;
            font-size: 18px;
            line-height: 27px;
            margin-top: 4px;
        }
    }
}