.lumber .mv .mv_img .mv_img_item{background-image:url(../img/lumber/mv.png)}.lumber section{padding-bottom:5.27vw}.lumber section .box_ttl h4{line-height:1.5}@media screen and (max-width:768px){.lumber section{padding-bottom:50px}.lumber section .sec_ttl h3{font-size:28px;margin-bottom:0.8em}}.lumber .sec1 .container .wrapper .sec_ttl h3{margin-bottom:0.4em}.lumber .sec1 .container .wrapper .box .box_ttl h4{margin-bottom:1em}.lumber .sec1 .container .wrapper .box .box_txt p{line-height:1.8;margin-bottom:3em}.lumber .sec1 .container .wrapper .box .box_item{gap:4%}.lumber .sec1 .container .wrapper .box .box_item .left_item{width:50%;max-width:478px;height:22.98vw;max-height:314px;background-image:url(../img/lumber/sec1.png);background-size:cover;background-position:center}.lumber .sec1 .container .wrapper .box .box_item .right_item{flex-direction:column;width:50%;max-width:478px;height:22.98vw;max-height:314px;padding:4.5%;border:1px solid var(--c_grn2)}.lumber .sec1 .container .wrapper .box .box_item .right_item .item_ttl h4{line-height:1.5;margin-bottom:1.6em;padding-left:0.5em;border-left:0.3em solid var(--c_grn2)}.lumber .sec1 .container .wrapper .box .box_item .right_item .item_txt{gap:5%}.lumber .sec1 .container .wrapper .box .box_item .right_item .item_txt img{width:31%}.lumber .sec1 .container .wrapper .box .box_item .right_item .item_txt p{line-height:1.6}.lumber .sec1 .container .wrapper .box .box_item .right_item .kome{line-height:1.6;margin-top:1.5em}@media screen and (max-width:1024px){.lumber .sec1 .container .wrapper .box .box_item{flex-direction:column;gap:20px}.lumber .sec1 .container .wrapper .box .box_item .left_item{width:70%;max-width:initial;height:37.98vw;max-height:initial}.lumber .sec1 .container .wrapper .box .box_item .right_item{height:auto;width:70%;max-width:initial}.lumber .sec1 .container .wrapper .box .box_item .right_item .item_txt img{width:26%}}@media screen and (max-width:768px){.lumber .sec1 .container{max-width:600px}.lumber .sec1 .container .wrapper .box .box_ttl h4{font-size:20px}.lumber .sec1 .container .wrapper .box .box_item .left_item,.lumber .sec1 .container .wrapper .box .box_item .right_item{width:80%}.lumber .sec1 .container .wrapper .box .box_item .right_item .item_ttl h4{font-size:20px}}@media screen and (max-width:480px){.lumber .sec1 .container{max-width:600px}.lumber .sec1 .container .wrapper .box .box_ttl h4{font-size:20px}.lumber .sec1 .container .wrapper .box .box_ttl p{margin-bottom:2em}.lumber .sec1 .container .wrapper .box .box_item .left_item,.lumber .sec1 .container .wrapper .box .box_item .right_item{width:100%}}.lumber .sec2 .container .wrapper .head_item{position:relative;width:100%;height:22.69vw;max-height:310px;min-height:186px;background-image:url(../img/lumber/sec2_head.png);background-size:cover;background-position:center}.lumber .sec2 .container .wrapper .head_item .sec_ttl{position:absolute;content:"";top:0;bottom:0;left:0;right:0;margin:auto;height:fit-content}.lumber .sec2 .container .wrapper .head_item .sec_ttl h3{margin-bottom:0}.lumber .sec2 .container .wrapper .box .item{gap:5%;padding:4%;margin:4% auto;background-color:var(--c_wht3)}.lumber .sec2 .container .wrapper .box .item .left_item{width:29.28vw;max-width:400px;height:20.64vw;max-height:282px;background-size:cover;background-position:center}.lumber .sec2 .container .wrapper .box .item:nth-of-type(1) .left_item{background-image:url(../img/lumber/sec2_1.png)}.lumber .sec2 .container .wrapper .box .item:nth-of-type(2) .left_item{background-image:url(../img/lumber/sec2_2.png)}.lumber .sec2 .container .wrapper .box .item:nth-of-type(3){margin-bottom:0}.lumber .sec2 .container .wrapper .box .item:nth-of-type(3) .left_item{background-image:url(../img/lumber/sec2_3.png)}.lumber .sec2 .container .wrapper .box .item .right_item{width:calc(100% - 29.28vw - 5%)}.lumber .sec2 .container .wrapper .box .item .right_item h2{margin-top:-0.5em;margin-bottom:0.2em}.lumber .sec2 .container .wrapper .box .item .right_item h3{line-height:1.5;margin-bottom:0.8em}.lumber .sec2 .container .wrapper .box .item .right_item p{line-height:1.6;width:93%}@media screen and (min-width:1367px){.lumber .sec2 .container .wrapper .box .item .right_item{width:57%}}@media screen and (max-width:768px){.lumber .sec2 .container .wrapper .box .item .right_item h3{font-size:18px;line-height:1.5;margin-bottom:0.8em}}@media screen and (max-width:480px){.lumber .sec2 .container .wrapper .box .item{flex-direction:column;gap:20px;padding:36px 10%;margin:30px auto}.lumber .sec2 .container .wrapper .box .item .left_item{width:100%;height:52.64vw}.lumber .sec2 .container .wrapper .box .item .right_item{width:100%}.lumber .sec2 .container .wrapper .box .item .right_item h2{font-size:30px;margin-top:0}.lumber .sec2 .container .wrapper .box .item .right_item h3{font-size:20px;margin-bottom:0.8em}.lumber .sec2 .container .wrapper .box .item .right_item p{width:100%}}.lumber .sec3{padding-bottom:8.78vw}.lumber .sec3 .container .wrapper .sec_ttl p{line-height:1.6}.lumber .sec3 .container .wrapper .box .item{gap:5%;margin-top:5.5%}.lumber .sec3 .container .wrapper .box .item .left_item{width:45%}.lumber .sec3 .container .wrapper .box .item .left_item h3{line-height:1.5;margin-bottom:1em}.lumber .sec3 .container .wrapper .box .item .left_item p{line-height:1.8;margin-bottom:1.5em}.lumber .sec3 .container .wrapper .box .item .left_item p.small_txt{margin-bottom:0}.lumber .sec3 .container .wrapper .box .item .right_item .item_img img{width:35.13vw;max-width:480px;height:auto}@media screen and (max-width:768px){.lumber .sec3{padding-bottom:70px}.lumber .sec3 .container .wrapper .box .item .left_item{width:55%}.lumber .sec3 .container .wrapper .box .item .left_item h3{font-size:26px}}@media screen and (max-width:480px){.lumber .sec3 .container .wrapper .box .item{flex-direction:column;gap:30px;margin-top:30px}.lumber .sec3 .container .wrapper .box .item .left_item,.lumber .sec3 .container .wrapper .box .item .right_item{width:100%}.lumber .sec3 .container .wrapper .box .item .right_item .item_img{max-width:360px;margin:auto}.lumber .sec3 .container .wrapper .box .item .right_item .item_img img{width:100%}}