@charset "UTF-8";@media print, screen and (min-width: 769px) {html{overflow: auto;}body{overflow: hidden;}}@media screen and (max-width: 768px) {.inner_wrap{padding-left: 3.067vw;padding-right: 3.067vw;}}.mbSS{margin-bottom: 15px!important;}.mbS {margin-bottom: 30px!important;}.mbM {margin-bottom: 60px!important;}.mbL {margin-bottom: 100px!important;}@media screen and (max-width: 768px) {.mbSS{margin-bottom: 4vw!important;}.mbS {margin-bottom: 6.66vw!important;}.mbM {margin-bottom: 10vw!important;}.mbL {margin-bottom: 16.6vw!important;}.mbSS_sp{margin-bottom: 4vw!important;}.mbS_sp {margin-bottom: 6.66vw!important;}.mbM_sp {margin-bottom: 10vw!important;}.mbL_sp {margin-bottom: 16.6vw!important;}}.tx_caption{font-size: 0.72rem;}@media screen and (max-width: 768px) {.tx_caption{font-size: 2.93vw;}}.tx_bold{font-weight: 700!important;}.tx_red{color: #C7000B;}.tx_red a{color: #C7000B;}.tx_red_new{color: #ff0000;}.tx_ao_new{color: #009fe8;}.tx_min{font-size: 0.78em;vertical-align: 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{.sub_box{width: 100%;}}.tx_box,.tx_box *{font-size: 16px;line-height: 1.75em;}@media screen and (max-width: 768px) {.tx_box,.tx_box *{font-size: 4.26vw;}}h3{font-size: 3.2rem;margin-bottom: 2rem;font-weight: bold;}h4.point_tit{position: relative;height: 82px;padding-left: calc(90px + 1em);border-bottom: 4px solid #EE8481;margin-bottom: 40px;display: flex;align-items: center;}h4.point_tit::before {content: "";position: absolute;left: 0;bottom: 0;width: 78px;height: 100%;min-height: 78px;background-repeat: no-repeat;background-position: center;background-size: 60px auto;}#po01 h4.point_tit::before {background-image: url(/keirinkan/chu_r7/libry/images/libry_po01_num.webp);}#po02 h4.point_tit::before {background-image: url(/keirinkan/chu_r7/libry/images/libry_po02_num.webp);}#po03 h4.point_tit::before {background-image: url(/keirinkan/chu_r7/libry/images/libry_po03_num.webp);}#po04 h4.point_tit::before {background-image: url(/keirinkan/chu_r7/libry/images/libry_po04_num.webp);}#lineup h4.point_tit::before {background-image: url(/keirinkan/chu_r7/libry/images/libry_lineup_num.webp);}h4.point_tit.point_tit_pink{border-color:#EE8481;}h4.point_tit.point_tit_pink::before{background-color: #EE8481;}h4.point_tit.point_tit_blue{border-color:#69A1D7;}h4.point_tit.point_tit_blue::before{background-color: #69A1D7;}h4.point_tit.point_tit_green{border-color:#22aa4b;}h4.point_tit.point_tit_green::before{background-color: #22aa4b;}.point_tit_large{font-size: 31px;line-height: 1.75em;margin-top: -4px;font-weight: bold;}@media screen and (max-width: 768px) {h3{font-size: 6.4vw;margin-bottom: 6.66vw;}h4.point_tit{height: calc(18.6vw + 4px);padding-left:calc(12vw + 1em);padding-bottom: .5em;margin-bottom: 6.66vw;}h4.point_tit::before{width: 12vw;min-height: 18.6vw;background-size: 8vw auto;}.point_tit_large{font-size: 5.12vw;line-height: 1.57em;margin-top: 0;}}@media screen and (max-width: 768px) {}@media print, screen and (min-width: 769px) {.po_box{display: flex;justify-content: space-between;}.po_boxL{width: 370px;}.po_boxR{width: 400px;}}.po_boxL img, .po_boxR img{width: 100%;}@media screen and (max-width: 768px) {.po_boxL{width: 100%;}.po_boxR{width: 100%;}}@media print, screen and (min-width: 769px) {.po05_01{width: 534px;margin: auto;}.po04_01 img, .po05_01 img{width: 100%;}}.libry_teacher{position: relative;border: 2px solid #69A1D7;padding: 1em;min-height: calc(42px + 2em);}.libry_teacher::after{content: "";background-image: url(/keirinkan/chu_r7/libry/images/libry_teacher.webp);background-repeat: no-repeat;background-size: contain;width: 132px;height: 42px;position: absolute;top: 1em;right: 1em;}.libry_teacher_boxR{position: relative;}.sample_linkbox{position: absolute;width: 70px;height: 64px;bottom: 50px;right: 12px;}#boxer{padding-top: 2em;padding-bottom: 0;}#boxer .boxer-image {float: none;}#boxer .boxer-content {text-align: center;}#boxer .boxer-content p{text-align: left;}#boxer .boxer-control.previous {left: 5px;}#boxer .boxer-control.next {right: 5px;}@media print, screen and (min-width: 769px) {.libry_teacher h5{font-size: 24px;}.libry_teacher_box{display: flex;justify-content: space-between;}.libry_teacher_boxL{width: 400px;}}@media screen and (max-width: 768px) {.libry_teacher h5{font-size: 5.06vw;}.libry_teacher_boxL{width: 100%;}.sample_linkbox{width: 13.3vw;height: 13.3vw;bottom: 6.4vw;right: 13.06vw;}}.support_box{width: 623px;margin: auto;}.support_box_tit{font-size: 24px;text-align: center;background-color: #dcdddd;font-weight: bold;padding: 0.25em 0 0.35em 0;border-radius: 22px 22px 0 0;}.support_box_tit_yellow{background-color: #fff000;}.support_box_innrer{display: flex;justify-content: space-between;background-color: #f7f8f8;border-radius: 0 0 22px 22px;padding: 40px 85px 35px 85px;}.support_box_tit_yellow+.support_box_innrer{display: block;padding: 40px;}.support_box_innrerL{width: 301px;}.support_box_innrerR{width: 212px;}.support_box_innrerL img, .support_box_innrerR img{width: 100%;}.support_box_innrer_tit{font-size: 24px;color: #00A841;text-align: center;margin-bottom: .5em;}.support_box_innrer_tx{width: 100%;margin: auto;font-size: 16px;color: #727171;}.support_box_innrerL .support_box_innrer_tx{margin-left: 1.5em;}@media screen and (max-width: 768px) {.support_box{width: 100%;}.support_box_tit{font-size: 5.06vw;}.support_box_innrer{padding: 1em 1.25em;}.support_box_innrerL{width: 45.6vw;}.support_box_innrerR{width: 35.6vw;}.support_box_innrer_tit{font-size: 4.4vw;}.support_box_innrer_tx{font-size: 2.66vw;}.support_box_innrerL .support_box_innrer_tx{margin-left: 0;}.support_box_tit_yellow+.support_box_innrer{padding: 4vw 3.5vw 8vw 3.5vw;}}.link_box{display: flex;justify-content: space-between;align-items: center;}.link_box_img{max-width: 22.6rem;width: 100%;}@media screen and (max-width: 768px) {.link_box{width: 100%;flex-direction: column;}.link_box_img{max-width: 85.333vw;}.link_box_img picture{display: block;}.link_box_img + .link_box_img{margin-top: 4.667vw;}}@media screen and (max-width: 768px) {.square_btn{width: 57.7vw;}}.main {width: 1300px;margin:0 auto;}@media screen and (max-width: 768px) {.main {width: 94%;margin: auto;}}.mb40{margin-bottom: 40px;}@media screen and (max-width: 768px) {.mb40{margin-bottom: 10vw;}}.square_btn.yellow_green_set a{background-color: #2ba04b;box-shadow: 7px 7px #c5e0b2;}.square_btn.blue_mizu_set a{background-color: #2975b4;box-shadow: 7px 7px rgba(41, 117, 180,.3);}.anchor_box{width: 740px;margin: auto;margin-bottom: 120px;}.anchor_box .link_box{width: 100%;}.anchor_box .square_btn{margin: 0;position: relative;}.anchor_box .square_btn a{display: flex;align-items: center;font-size: 22px;padding-left: 0.75em;}.anchor_box .square_btn a img{width: 40px;margin-right: 0.75em;}.square_btn.newfunc_set a{background-color: #ee8ba5;box-shadow: 7px 7px #ffc5d7;}.anchor_box .square_btn a::after {content: "";position: absolute;top: 50%;transform: translateY(-50%);right: 0.75em;border-left: 8px solid transparent;border-right: 8px solid transparent;border-top: 8px solid #ffffff;}@media screen and (max-width: 768px) {.anchor_box {width: 100%;margin-bottom: 8vw;}.anchor_box .link_box {display: block;}.anchor_box .link_box p:first-child{margin-bottom:6.66vw;}.anchor_box .square_btn{width: 100%;}.anchor_box .square_btn a{display: block;font-size: 4.8vw;position: relative;text-align: center;padding-left: 0;}.anchor_box .square_btn a img {width: 8vw;position: absolute;top: 50%;left: 0.75em;transform: translateY(-50%);}}.librycam_box{border: #2da24a 2px solid;border-radius: 6px;padding: 60px 25px 0 25px;position: relative;}.librycam_box .librycam_box_tit{background-color: #2da24a;padding: .5em 0;position: absolute;top: 0;left: 0;width: 100%;}.librycam_box .librycam_box_tit p{color: #fff000;font-size: 27px;display: flex;justify-content: center;align-items: center;font-weight: bold;}#lcam .po_box{align-items: center;}#lcam .po_boxL{max-width:49rem;width: 100%;}#lcam .po_boxR{max-width: 21.2rem;width: 100%;margin-top: 1rem;}@media screen and (max-width: 768px) {.librycam_box{padding: 17vw 6.5vw 0 6.5vw;}.librycam_box .librycam_box_tit{padding: .5em 0 .75em 0;}.librycam_box .librycam_box_tit p{font-size: 5.06vw;}.librycam_box .librycam_box_tit p::before{font-size: 4.26vw;}#lcam .po_box{align-items: center;}#lcam .po_boxL{width:100%;}#lcam .po_boxR{max-width: 57.467vw;margin: auto;width: 100%;margin-top: 1rem;}#lcam .po_boxL p{font-size: 4vw;}}.po02_box{display: flex;justify-content: space-between;align-items: flex-start;}.po02_boxs{border-radius: 1rem;padding: 3rem 1.8rem;max-width: 44rem;width: 100%;}.po02_boxs.math_half{background-color: #DCEFF6;}.po02_boxs.science_half{background-color: #EEF3D3;}.po02_boxs_tit{font-size: 2.4rem;font-weight: bold;border-radius: .5rem;color: #fff;display: flex;justify-content: center;align-items: center;min-height: 4.4rem;margin-bottom: 3rem;}.math_half .po02_boxs_tit{background-color: #00B7DE;}.science_half .po02_boxs_tit{background-color: #2AA239;}.po02_boxs_book{display: flex;flex-direction: column;align-items: center;}.po02_boxs_book + .po02_boxs_book{margin-top: 6rem;}@media print, screen and (min-width: 769px) {.science_half > .po02_boxs_book:nth-of-type(2){padding-top: 3.5rem;}}.po02_boxs_book img{margin-bottom: 2rem;width: auto;height: 13.2rem;}.po02_boxs_book_tit{font-size: 2rem;font-weight: bold;text-align: center;}.po02_boxs_book_tit .titmin{font-size: 1.7rem;font-weight: normal;}.po02_box .info{font-size: 1.1rem;}@media screen and (max-width: 768px) {.po02_box{display: flex;align-items: flex-start;flex-wrap: wrap;}.po02_boxs{padding: 5.333vw 3.2vw;max-width: 100%;}.po02_boxs_tit{font-size: 4.4vw;min-height: 8vw;margin-bottom: 5.333vw;}.po02_boxs_book + .po02_boxs_book{margin-top: 10.667vw;}.po02_boxs_book img{margin-bottom: 4vw;height: 35.2vw;}.po02_boxs_book_tit{font-size: 4.8vw;}.po02_boxs_book_tit .titmin{font-size:4vw;}.po02_box .info{font-size: 2.933vw;}}.po04color{color:#f29600;}.line_box .po_boxL, .line_box .po_boxR{width: 368px;}@media screen and (max-width: 768px) {#po04_line{width: 95%;margin: auto;}.line_box .po_boxL, .line_box .po_boxR{width: 100%;margin-bottom: 10vw;}}.line_tit{background-color: #fdf7f6;text-align: center;color: #f29600;font-size: 22px;font-weight: bold;padding: 0.25em 0;border-top: #f29600 2px solid;border-bottom: #f29600 2px solid;margin-bottom: 0.75em;}.line_tit_maru,.line_tit_maru *{font-size: 18px;font-weight: bold;text-align: center;margin-bottom: 0.25em;}@media screen and (max-width: 768px) {.line_tit{font-size: 4.66vw;border-top: #f29600 0.53vw solid;border-bottom: #f29600 0.53vw solid;}.line_tit_maru,.line_tit_maru *{font-size: 3.6vw;}}.wline_box{width: 707px;margin: 0 auto 40px auto;}.wline_box .po_boxL{width: 400px;}.wline_box .po_boxR{width: 245px;}.wline_box .po_boxR img{width: 100%;}.wline_tit{position: relative;font-size: 20px;color: #00633d;font-weight: bold;border-bottom: #2da24a solid 1px;padding-bottom: 0.25em;margin-bottom: 0.75em;}.wline_tit::after {content: "";border-bottom: #2da24a solid 1px;position: absolute;bottom: -4px;width: 100%;left: 0;}@media screen and (max-width: 768px) {.wline_box{width: 100%;margin: 0 auto 10vw auto;}.wline_box .po_boxL{width: 100%;margin-bottom: 6.66vw;}.wline_box .po_boxR{width: 73%;margin: auto;}.wline_tit{font-size: 4.26vw;text-align: center;}.wline_tit::after {content: "";border-bottom: #2da24a solid 1px;position: absolute;bottom: -4px;width: 100%;left: 0;}}.lum-img{background-color: #fff;}.lum-previous-button:after {border-left: 4px solid hsla(0, 0%, 81%, 0.8);box-shadow: none;}.lum-gallery-button:after {border-top: 4px solid hsla(0, 0%, 81%, 0.8);}.lum-next-button:after {border-right: 4px solid hsla(0,0%,81%,.8);box-shadow: none;}@media screen and (max-width: 768px) {.lum-next-button {right: 0%;}.lum-previous-button {left: 0%;}.lum-gallery-button:after{width: 4.26vw;height: 4.26vw;}}.maru_libry{position: relative;padding-left: .75em;}.maru_libry::before{content: "";position: absolute;height: 3px;width: 3px;border-radius: 100%;background-color: #222222;left: 0;top: calc(1em - .15em);}.spring2025{background-color: #F1F8F1;padding-bottom: 6rem;}.spring2025_titbg{position: relative;display: flex;align-items: center;justify-content: center;background: repeating-linear-gradient(45deg, #259543, #259543 3px, #2CA04A 0, #2CA04A 15px);min-height: 14.3rem;margin-bottom: 6.6rem;box-shadow: 0.1rem 0.1rem 1rem 0px rgb(0 0 0 / 40%);}.spring2025_titbg p{font-size: 2rem;color: #fff;border-bottom: 1px solid #FFF000;padding-bottom: .15em;display: flex;flex-direction: column;font-weight: bold;margin-top: -1.25em;line-height: 1.5;}.spring2025_titbg p::after{content: "";padding-top: .15em;border-bottom: 1px solid #FFF000;}.spring2025_titbg p span{font-size: 3.1rem;}.libry_spring2025_tit{position: absolute;width: 39rem;bottom: -2.5rem;}.spring2025_mainbox{display: flex;justify-content: space-between;max-width: 81.8rem;margin: auto;margin-bottom: 6rem;}.spring2025_img01{width: 35rem;}.spring2025_img02{width: 41.9rem;}@media print, screen and (min-width: 769px) {.spring2025_img02 p{padding-left: .9em;}}.spring2025_img02 img{margin-top: 7.5rem;}@media screen and (max-width: 768px) {.spring2025{padding-bottom: 0;}.spring2025_titbg{background: repeating-linear-gradient(45deg, #259543, #259543 2px, #2CA04A 0, #2CA04A 8px);min-height: 30.133vw;margin-bottom: 12vw;}.spring2025_titbg p{font-size: 4vw;align-items: center;}.spring2025_titbg p::after{width: 100%;}.spring2025_titbg p span{font-size: 6.133vw;}.libry_spring2025_tit{width: 69.2vw;bottom: -4vw;}.spring2025_mainbox{max-width: 100%;margin-bottom: 8vw;flex-direction: column;}.spring2025_img01{width: 60.533vw;margin: auto;margin-bottom: 10.667vw;}.spring2025_img02{width: 82.667vw;margin: auto;}.spring2025_img02 img{margin-top: 13.333vw;}}.subject_box{display: flex;border-radius: 9px;padding: 3rem 0;flex-direction: column;}.subject_box + .subject_box{margin-top: 3rem;}.subject_box.mathbox{background-color: #DCEFF6;}.subject_box.sciencebox{background-color: #EEF3D3;}.subject_tit{position: relative;font-weight: bold;text-align: center;font-size: 3.2rem;width: 90%;margin: auto;margin-bottom: 3rem;background-color: rgba(255,255,255,.7);}.mathbox .subject_tit{color: #00B7DE;}.sciencebox .subject_tit{color: #2AA239;}.subject_tit::before, .subject_tit::after{content: "";position: absolute;width: 100%;left: 0;}.subject_tit::before{top: -.6rem;}.subject_tit::after{bottom: -.6rem;}.mathbox .subject_tit::before{border-top: 1.8px solid #00B7DE;}.mathbox .subject_tit::after{border-bottom: 1.8px solid #00B7DE;}.sciencebox .subject_tit::before{border-top: 1.8px solid #2AA239;}.sciencebox .subject_tit::after{border-bottom: 1.8px solid #2AA239;}.subject_inner{max-width: 70.2rem;margin: auto;}@media screen and (max-width: 768px) {.subject_box{width: calc(100% + 6rem);margin-left: -3rem;padding: 8vw 0;}.subject_tit{width: 80%;font-size: 4.667vw;margin-bottom: 8vw;}.subject_inner{max-width: 88vw;}}.subject_inner_flex{display: flex;justify-content: space-between;margin-bottom: 2rem;}.subject_inner_flex > div{width: 33rem;}.subject_inner_tit{font-size: 2rem;font-weight: bold;display: flex;align-items: center;}.subject_inner_tit .titicon{width: 22px;margin-right: .5em;}.sciencebox .subject_inner_tit .titicon{width: 35px;}.subject_inner .basic_btn_wrap{justify-content:left;}.subject_inner_conlist{margin-top: 3rem;display: flex;justify-content: space-between;}.subject_inner_conlistL{font-size: 2rem;font-weight: bold;background-color: #B6E1F1;width: 12.7rem;height: 16rem;line-height: 1.5;display: flex;align-items: center;text-align: center;justify-content: center;}.mathbox .subject_inner_conlistL{background-color: #B6E1F1;}.sciencebox .subject_inner_conlistL{background-color: #BDDDAD;}.subject_inner_conlistR{max-width: 56.7rem;width: 100%;display: flex;flex-wrap: wrap;justify-content: space-around;align-content: space-between;}.subject_inner_conlist_icon{font-size: 1.3rem;line-height: 1.5;text-align: center;background-color: #fff;height: 7.5rem;display: flex;flex-direction: column;align-items: center;padding-top: .5rem;border-radius: 6px;justify-content: center;}.mathbox .subject_inner_conlist_icon{max-width: 10.5rem;width: 100%;}.sciencebox .subject_inner_conlist_icon{max-width: 13rem;width: 100%;}.mathbox .subject_inner_conlist_icon img{width: 4.6rem;}.sciencebox .subject_inner_conlist_icon img{width: 6.4rem;}@media screen and (max-width: 768px) {.subject_inner_flex{margin-bottom: 8vw;flex-direction: column;}.subject_inner_flex > div{width: 100%;}.subject_inner_flex > *:first-child{margin-bottom: 13.333vw;}.subject_inner_tit{font-size: 4.4vw;}.subject_inner_tit .titicon{width: 5.867vw;}.sciencebox .subject_inner_tit .titicon{width: 9.467vw;}.subject_inner .basic_btn_wrap{justify-content:left;margin-bottom: 13.333vw;}.subject_inner .basic_btn{max-width: 68vw;width: 100%;}.subject_inner_conlist{margin-top: 16vw;flex-direction: column;align-items: center;flex-direction: column;}.subject_inner_conlistL{font-size: 5.333vw;width: 100%;height: 13.333vw;border-radius: 2.667vw;margin-bottom: 4vw;}.subject_inner_conlistR{max-width: 56.7rem;width: 100%;display: flex;flex-wrap: wrap;justify-content: space-around;align-content: space-between;}.subject_inner_conlist_icon{font-size: 4.133vw;text-align: center;height: 20vw;}.mathbox .subject_inner_conlist_icon, .sciencebox .subject_inner_conlist_icon{max-width: 38.667vw;margin-bottom: 2.667vw;}}#lineup table {width: 100%;border-collapse: collapse;border-spacing: 0;}#lineup table th{text-align: center;vertical-align: middle;font-weight: normal;min-height: 2.9rem;}#lineup table tr:first-child th{color: #ffffff;font-size: 22px;width: 100%;font-weight: bold;min-height: 3.5rem;}#lineup table tr:nth-child(2) th{font-size: 18px;}#lineup table th:nth-child(1){width: 17rem;}#lineup table th:nth-child(2){width: 40rem;}#lineup table th:nth-child(3){width: 17rem;}#lineup table th:nth-child(4){width: 10rem;}#lineup table th:nth-child(5){width: 15rem;}#lineup table td{padding: 1em .4em;vertical-align: middle;}#lineup table td:nth-child(3), #lineup table td:nth-child(4), #lineup table td:nth-child(5){text-align: center;}#lineup table td:nth-child(5){padding: 1em .6em 1em .25em;}#mathtable tr:first-child{background-color: #0b69ac;}#mathtable tr:nth-child(2){background-color: #c8ddec;}#mathtable td, #mathtable th{border: 1px solid #0b69ac;}#rikatable tr:first-child{background-color: #158a3b;}#rikatable tr:nth-child(2){background-color: #d1e8d9;}#rikatable td, #rikatable th{border: 1px solid #158a3b;}#lineup .syasen{background-image: linear-gradient(to left top, transparent calc(50% - 0.5px), #0b69ac 50%, #0b69ac calc(50% + 0.5px), transparent calc(50% + 1px));}#lineup .mini{font-size:.66em;}@media screen and (max-width: 768px) {#lineup table {width: 290%;}#lineup table *{font-size: 4.267vw;}#lineup table tr:first-child th{font-size: 5.867vw;}#lineup table tr:nth-child(2) th{font-size: 4.8vw;}#lineup table th{vertical-align: middle;line-height: 1.36em;}#lineup table th:nth-child(1){width: 11%;}#lineup table th:nth-child(2){width: 21%;}#lineup table th:nth-child(3){width: 10%;}#lineup table th:nth-child(4){width: 4%;}#lineup table th:nth-child(5){width: 7%;}}#lineup .info *{font-size: 1.1rem;}.howtobox{background-color: #ECF5E6;border: 1px solid #2BA04B;}.howtobox_tit{font-size: 2.8rem;font-weight: bold;min-height: 7rem;display: flex;align-items: center;justify-content: center;}.howtobox_inner{background-color: #fff;margin: 0 1rem 1rem;padding: 6rem 0 0;display: flex;justify-content: space-evenly;flex-wrap: wrap;}.howtobox_inner_box{width: 42rem;display: flex;flex-direction: column;align-items: center;margin-bottom: 6rem;}.howtobox_inner_tit{display: flex;position: relative;font-size: 2.2rem;font-weight: bold;margin-bottom: 4rem;flex-direction: column;align-items: center;}.howtobox_inner_tit::before, .howtobox_inner_tit::after{content: "";width: 34rem;position: absolute;border-top: 1px solid;}.howtobox_inner_tit::before{bottom: -.75em;}.howtobox_inner_tit::after{bottom: -.5em;}#howto .science .howtobox_inner_tit{color: #158A3B;}#howto .math .howtobox_inner_tit{color: #004DA0;}.howtobox_inner_tx{min-height: 6em;}@media screen and (max-width: 768px) {.howtobox_tit{font-size: 5.4vw;min-height: 16.667vw;}.howtobox_inner{margin: 0 1em 1em;padding: 8vw 1em 0 1em;}.howtobox_inner_box{width: 100%;margin-bottom: 14vw;}.howtobox_inner_tit{font-size: 5vw;font-weight: bold;margin-bottom: 9.333vw;}.howtobox_inner_tit::before, .howtobox_inner_tit::after{width: 70vw;}.howtobox_inner_tx{margin-bottom: 1em;}}#howto .link_box p:first-child{font-size: 22px;font-weight: bold;}#howto .square_btn{width: 415px;height: 67px;}#howto .square_btn a{height: 100%;display: flex;align-items: center;justify-content: center;}#howto .science .square_btn img{width: 37.1rem;}#howto .math .square_btn img{width: 28.4rem;}#howto .mini{font-size: 1.2rem;margin-right: auto;}@media screen and (max-width: 768px) {#howto .link_box{width: 100%;display: block;}#howto .link_box p:first-child{font-size: 4.53vw;text-align: center;margin-bottom: .25em;margin-left: -.25em;}#howto .square_btn{width: 78.2vw;height: 12.6vw;}#howto .science .square_btn img{width: 69.8vw;}#howto .math .square_btn img{width: 61.8vw;}#howto .mini{font-size: 3.2vw;}}#librylink.link_box{width: 600px;margin: auto;}#librylink .link_box_img{width: 25rem;margin-left: -1.5em;}.square_btn a {color: #ffffff;display: block;}.square_btn {width: 340px;font-size: 1.33em;font-weight: 100;line-height: 2.6em;margin: auto;text-align: center;cursor: pointer;}@media screen and (max-width: 768px) {#librylink.link_box{width: 100%;margin: auto;}#librylink .link_box_img{margin-left: 0;margin-bottom: .5em;}}