.btn{position:relative;display:flex;justify-content:center;align-items:center;color:#0068b7;border:1px solid #0068b7;background:#fff;line-height:1.2;padding:10px 29.87px 10px 10px;position:relative;justify-content:center;padding:10px 15px}.btn:after{position:absolute;top:50%;right:10px;content:"";border-right:1px solid #0068b7;border-top:1px solid #0068b7;transform:rotate(45deg) translateY(-50%);height:7px;width:7px}@media(any-hover: hover){.btn:after{transition:border-top-color .5s ease-out,border-right-color .5s ease-out}}@media(any-hover: hover){.btn{transition:color .5s ease-out,border-top-color .5s ease-out,border-right-color .5s ease-out,border-bottom-color .5s ease-out,border-left-color .5s ease-out,background-color .5s ease-out}.btn:hover{background:#0068b7;color:#fff;border-color:#fff}.btn:hover:after{border-color:#fff}}.btn::after{position:absolute;display:inline-block;top:50%;right:8px;transform:translateY(-50%) rotate(45deg)}.link-btn{position:relative;display:flex;justify-content:center;align-items:center;color:#333;border:1px solid #aaa;background:#fff;line-height:1.2;padding:10px 29.87px 10px 10px}.link-btn:after{position:absolute;top:50%;right:10px;content:"";border-right:1px solid #333;border-top:1px solid #333;transform:rotate(45deg) translateY(-50%);height:7px;width:7px}@media(any-hover: hover){.link-btn:after{transition:border-top-color .5s ease-out,border-right-color .5s ease-out}}@media(any-hover: hover){.link-btn{transition:color .5s ease-out,border-top-color .5s ease-out,border-right-color .5s ease-out,border-bottom-color .5s ease-out,border-left-color .5s ease-out,background-color .5s ease-out}.link-btn:hover{background:#0068b7;color:#fff;border-color:#fff}.link-btn:hover:after{border-color:#fff}}.related-link{background-color:#f5f5f5}.related-link__list{display:grid;grid-gap:10px}.related-link__list+.related-link__list{margin-top:60px}@media screen and (max-width:599px){.related-link__list{grid-template-columns:repeat(1, 1fr)}}@media screen and (min-width:600px)and (max-width:1024px){.related-link__list{grid-template-columns:repeat(2, 1fr)}}@media screen and (min-width: 1025px){.related-link__list{grid-template-columns:repeat(4, 1fr)}}.related-link__title{flex-basis:100%;font-weight:600}@media screen and (max-width:599px){.related-link__title{font-size:2rem;grid-column:1/2}}@media screen and (min-width:600px)and (max-width:1024px){.related-link__title{font-size:2rem;grid-column:1/3}}@media screen and (min-width: 1025px){.related-link__title{font-size:3rem;grid-column:1/5}}.related-link__item{display:flex}.related-link__link-btn{width:100%}@media screen and (min-width:600px){.related-link__link-btn{min-height:75px}}@media screen and (max-width: 1024px){.col__container--sptab1-pc2{display:grid;gap:40px;grid-template-columns:1fr}}@media screen and (min-width: 1025px){.col__container--sptab1-pc2{display:grid;gap:20px;grid-template-columns:repeat(2, 1fr)}}@media screen and (max-width: 1024px){.col__container--sptab1-pc3{display:grid;gap:40px;grid-template-columns:1fr}}@media screen and (min-width: 1025px){.col__container--sptab1-pc3{display:grid;gap:20px;grid-template-columns:repeat(3, 1fr)}}@media screen and (max-width: 1024px){.col__container--sptab2-pc4{display:grid;gap:40px 20px;grid-template-columns:repeat(2, 1fr)}}@media screen and (min-width: 1025px){.col__container--sptab2-pc4{display:grid;gap:20px;grid-template-columns:repeat(4, 1fr)}}.link__text{color:#0068b7}.link__text:hover{text-decoration:underline}.link__text--r-arrow{display:flex;align-items:center;color:#0068b7}.link__text--r-arrow:hover{text-decoration:underline}.link__text--r-arrow::after{content:"";display:inline-block;width:8px;height:8px;margin-left:4px;border-right:1px solid #0068b7;border-bottom:1px solid #0068b7;transform:rotate(-45deg)}.text__sup{vertical-align:super;font-size:1.2rem}.text__note{display:inline-block;text-indent:-1em;padding-left:1em;font-size:1.4rem}.text__note{font-size:1.2rem}.chapter__title--alpha{font-size:3rem;font-weight:900;margin-bottom:12px}.chapter__visual{position:relative}.chapter__visual--img{aspect-ratio:238/125;width:100%;max-height:800px;display:block}.chapter__visual--img-area{position:relative}@media screen and (max-width:599px){.chapter__visual--img-area::after{content:"";background-color:rgba(51,51,51,.2);position:absolute;left:0;right:0;top:0;bottom:0}}.chapter__visual--wrap{width:100%;position:absolute;top:0;max-height:800px;height:100%;background:rgba(51,51,51,.3)}@media screen and (max-width:599px){.chapter__visual--wrap{position:static;background:none}}.chapter__visual--wrap-box{max-width:1200px;position:relative;margin:auto;max-height:800px;height:100%}@media screen and (max-width:599px){.chapter__visual--wrap-box{width:100%}}.chapter__visual--wrap-box-intro{position:absolute;color:#fff;width:430px;padding:30px 0 0 20px}@media screen and (max-width:599px){.chapter__visual--wrap-box-intro{position:static;text-align:center;padding:10px 20px 20px;width:100%;color:#333;background:#fff}}.chapter__visual--wrap-box-intro-subtext{border-bottom:1px solid #333;color:#333;font-size:2rem;font-weight:700;margin-bottom:20px;letter-spacing:.2em}.chapter__visual--wrap-box-intro-main{font-size:6rem;font-weight:700;font-family:"HG教科書体","HG正楷書体-PRO",serif}@media screen and (max-width:599px){.chapter__visual--wrap-box-intro-main{font-size:4rem}}.chapter__visual--wrap-box-intro-sub{font-size:2.2rem;font-weight:700;letter-spacing:.4em;margin-bottom:15px}@media screen and (max-width:599px){.chapter__visual--wrap-box-intro-sub{font-size:1.8rem;margin-bottom:10px}}.chapter__visual--wrap-box-intro-text{letter-spacing:.1em}@media screen and (max-width:599px){.col__container--sp1-tabpc4{display:grid;gap:20px;grid-template-columns:1fr}}@media screen and (min-width:600px){.col__container--sp1-tabpc4{display:grid;gap:40px;grid-template-columns:repeat(4, 1fr)}}.history__link{color:#231815;border:1px solid #231815;display:flex;flex-direction:column;padding:10px;min-height:460px;background:#fff;position:relative;transition:all .4s ease;height:100%}.history__link::after{content:"";position:absolute;width:0;height:0;border-style:solid;border-width:0 0 10px 10px;bottom:5px;right:5px;border-color:rgba(0,0,0,0) rgba(0,0,0,0) #231815 rgba(0,0,0,0)}@media(any-hover: hover){.history__link:hover{color:#fff;border:1px solid #fff;background:#231815}.history__link:hover .history__img{transform:scale(1.1)}.history__link:hover::after{border-color:rgba(0,0,0,0) rgba(0,0,0,0) #fff rgba(0,0,0,0)}}.history__num{font-size:4rem;font-family:serif;font-weight:700}.history__gaiyo{min-height:80px;font-size:1.8rem;font-weight:700}.history__img{aspect-ratio:3/2;width:100%;display:block;transition:all .5s ease}.history__img-area{overflow:hidden;border:1px solid #fff}.history__text{font-size:1.4rem;margin-top:5px;line-height:1.6em}.building02{background:#fff}@media screen and (max-width:599px){.building02{padding-bottom:0}}.building02__gaiyo{color:#007a83;text-align:center;margin-bottom:80px}.building02__gaiyo-subttl{font-size:1.8rem;margin-bottom:10px;font-weight:700}@media screen and (max-width:599px){.building02__gaiyo-subttl{font-size:1.6rem}}.building02__gaiyo-mainttl{font-size:5rem;font-weight:700;margin-bottom:20px}@media screen and (max-width:599px){.building02__gaiyo-mainttl{font-size:3.5rem}}.building02__gaiyo-text{font-size:1.4rem;line-height:2em;margin-bottom:20px}.building02__gaiyo-icon{aspect-ratio:1/1;display:block;background-color:#fff;margin:0 auto;width:10%}@media screen and (max-width:599px){.building02__gaiyo-icon{width:30%}}.building02__item{display:flex;flex-wrap:wrap;margin-bottom:7em}@media screen and (max-width:599px){.building02__item{flex-direction:column-reverse;margin-bottom:5em}}.building02__item:nth-child(odd){flex-direction:row-reverse}@media screen and (max-width:599px){.building02__item:nth-child(odd){flex-direction:column-reverse}}.building02__item:nth-child(odd) .building02__list--link-area{margin-left:auto}.building02__list{width:50%;padding:0 20px}@media screen and (max-width:599px){.building02__list{width:100%;padding:0 10px 15px}}.building02__list--category{display:inline-block;border:1px solid #333;padding:5px 10px;font-size:1.4rem;margin-bottom:20px}.building02__list--ttl{font-size:2.5rem;font-weight:700}@media screen and (max-width:599px){.building02__list--ttl{font-size:2rem}}.building02__list--text{font-size:1.4rem}.building02__list--link{display:flex;flex-direction:column;width:100%;border:1px solid #007a83;background:#fff;padding:10px;color:#007a83;position:relative;font-weight:bold;transition:all .5s ease;text-align:center}@media(any-hover: hover){.building02__list--link:hover{background-color:#007a83;color:#fff}.building02__list--link:hover::after{border-color:#fff}}.building02__list--link::after{transition:all .5s ease;position:absolute;top:50%;right:10px;content:"";height:7px;width:7px;border-right-width:1px;border-right-style:solid;border-top-width:1px;border-top-style:solid;border-color:#007a83;transform:translateY(-50%) rotate(45deg)}.building02__list--link-area{margin:20px 0;width:250px}@media screen and (max-width:599px){.building02__list--link-area{margin:20px auto}}.building02__list--link-area-rblock{margin-left:auto}.building02__link{width:50%;padding:0 20px}@media screen and (max-width:599px){.building02__link{width:100%;margin-bottom:15px;padding:0 10px}}@media(any-hover: hover){.building02__link:hover .building02__link--img{transform:scale(1.1)}}.building02__link--img{aspect-ratio:1000/667;display:block;transition:all .5s ease}.building02__link--img-area{overflow:hidden;border:1px solid #f0f0f0}.business{display:flex;justify-content:space-around;flex-wrap:wrap}.business__item{flex-shrink:0;padding:16px;display:flex}@media screen and (min-width:600px){.business__item{width:33.33%;min-width:300px}}@media screen and (max-width:599px){.business__item{width:100%}}.business__link{display:flex;flex-direction:column;width:100%;border:1px solid #999}@media screen and (min-width:600px){.business__link:hover .business__icon-fill{fill:#fff}.business__link:hover .business__picture-image{transform:scale(1.1)}.business__link:hover .business__name{color:#fff}.business__link:hover .business__text{color:#fff;background-color:#0068b7}}.business__link-active{pointer-events:none}@media screen and (min-width:600px){.business__link-active:hover .business__picture-image{transform:none}}.business__picture{width:100%;overflow:hidden;flex-shrink:0}.business__picture-image{aspect-ratio:412/263;width:100%;display:block;transition:all .5s ease}.business__text{transition:all .5s ease;flex-grow:1;padding:10px;display:flex;flex-direction:column;align-items:center;background-color:#fff}.business__text-active{background-color:#0068b7;color:#fff}.business__icon{height:50px;border-radius:10px;display:flex;align-items:center;justify-content:center;gap:2px}.business__icon-svg{height:50px}.business__icon-fill{fill:#0068b7}.business__icon-fill-active{fill:#fff}.business__icon-image--engineer,.business__icon-image--building-material-housing,.business__icon-image--building-material-public,.business__icon-image--material{height:50px;aspect-ratio:1/1}.business__name{transition:all .5s ease;color:#0068b7;font-size:1.8rem;font-weight:600}.business__name-active{color:#fff}.business__summary{transition:all .5s ease}@media screen and (min-width:600px){.btn{width:400px;margin:0 auto}}.btn-area{margin-top:50px}@media screen and (min-width:600px){.btn-area__link{width:500px;margin:0 auto;padding:20px}}.picture01{aspect-ratio:1904/1000;height:auto}.picture02{aspect-ratio:261/174;height:auto}.picture03{aspect-ratio:150/150;height:auto}.picture04{aspect-ratio:1000/667;height:auto}.picture05{aspect-ratio:366/234;height:auto}