#main{position:relative;background-repeat:no-repeat;background-size:cover;background-position:center 75%}#main:before{content:'';display:block;position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(17,17,17,.3)}#main .main_box{position:relative;z-index:1;max-width:850px;margin:0 auto;padding-top:135px;padding-bottom:240px}#main .main_box h1{text-align:center;font-size:40px;font-weight:400;color:#fff;line-height:1.4}#main .main_box h2{margin-top:35px;text-align:center;font-size:22px;font-weight:200;line-height:1.35;color:#fff}#main .main_box .btn_box{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-ms-flex-wrap:wrap;flex-wrap:wrap;gap:20px;margin-top:50px}#main .main_box .btn_box .btn{height:76px}#main .main_box .btn_box .btn.btn1{width:220px}#main .main_box .btn_box .btn.btn2{width:250px}@media screen and (max-width:770px){#main .main_box{padding-top:100px;padding-bottom:200px}}@media screen and (max-width:700px){#main .main_box h1{font-size:35px}#main .main_box h2{margin-top:30px;font-size:20px}}@media screen and (max-width:550px){#main .main_box .btn_box{margin-top:30px;gap:10px}#main .main_box .btn_box .btn.btn1,#main .main_box .btn_box .btn.btn2{width:100%}}@media screen and (max-width:500px){#main .main_box{padding-top:70px;padding-bottom:120px}#main .main_box h1{font-size:30px}#main .main_box h2{font-size:18px}#main .main_box .btn_box .btn{height:60px}}@media screen and (max-width:400px){#main .main_box h1{font-size:28px}}