/* sub visual */
.sub_visual_wrap{position: relative;}
.sub_visual_box { width: 100%; height: 490px; overflow: hidden; position: relative; } 
.sub_page_visual { background-repeat: no-repeat; background-position: center; background-size: cover; animation: bg-active 5s; height: 100%; overflow: hidden; } 

/* sub visual + pc_top_menu */
.sub_visual_box .visual_menu_wrap { padding-top: 60px; position: relative; z-index: 1111; } 
.depth_wrap { display: flex; flex-direction: row; flex-wrap: nowrap;  max-width: 1380px;   width: 90%;margin: 0 auto; height: 100%;} 
.depth_wrap .depth_name { display: flex; justify-content: space-between; min-width:87px; font-size: 18px; align-items: center; height: 100%; word-break: keep-all; color: #242424}  
.depth_wrap > div.home_btn {width: 70px;  } 
.depth_wrap > div.home_btn a{display: flex; align-items: center; justify-content: center; width: 100%; height: 100%;}
.depth_wrap > div.home_btn a span{font-size: 16px; }
.depth_wrap > div { padding: 0 30px; position: relative; cursor: pointer; width: 300px;} 
.depth_wrap > div::after{content: ""; display: block; width: 1px; height: 50px; background-color: #ccc; position: absolute; top: 50%; right: 0;  transform: translateY(-50%);}

.depth_wrap > div.home_btn::before{content: ""; display: block; width: 1px; height: 50px; background-color: #ccc; position: absolute; top: 50%; left: 0;  transform: translateY(-50%);}


.depth_wrap > div.depth3 {/* display: none; *//* width: auto; */width: 100%;max-width: 250px; width: 250px;}  
.depth_wrap > div.depth3.show { display:block; } 
.depth_wrap > div
.depth_wrap > div:last-child { border-right: unset; } 
.depth_wrap > div .depth_name i {line-height: 50px; font-size: 20px;} 
.visual_menu_wrap { width: 100%; background-color: #fff; height: 80px;  z-index: 99; display: flex; align-items: center; border-bottom: 1px solid #ddd;} 
.visual_menu_wrap.fixed{position: fixed; top: 81px;}
.visual_menu_wrap .com_depth { position: absolute; background: #f6f6f6; padding: 10px; width: 97%; left: 50%; transform: translateX(-50%); top: 80px; z-index: 10; } 
.visual_menu_wrap .com_depth li:hover a{color: var(--main-color); font-weight: 600;}
.visual_menu_wrap .com_depth li.on a{color: var(--main-color);}
.visual_menu_wrap .com_depth li a.on{color: var(--main-color); }
.visual_menu_wrap .com_depth li a {padding: 15px 0; font-size: 16px; display: block; width: 100%; height: 100%; color: #444; } 
.visual_menu_wrap .com_depth li.on a{text-decoration: underline; text-underline-offset: 5px;}
.visual_menu_wrap .com_depth.sub_depth2{background-color:var(--main-color) ;}
.visual_menu_wrap .com_depth.sub_depth2 li a{color: #fff;}
.depth_wrap > div.depth2 i{ color: #242424;}
.depth_wrap .depth2 .depth_name{color: #094da0;}
.depth_wrap > div.depth2{width: 400px;}

.sub_page_visual1 { background-image: url(../../img/sub_visual_1.jpg); } 
.sub_page_visual2 { background-image: url(../../img/sub_visual_2.jpg); } 
.sub_page_visual3 { background-image: url(../../img/sub_visual_3.jpg); } 
.sub_page_visual4 { background-image: url(../../img/sub_visual_4.jpg); } 
.sub_page_visual5 { background-image: url(../../img/sub_visual_5.jpg); } 
.sub_page_visual6 { background-image: url(../../img/sub_visual_6.jpg); } 

 /* 애니메이션 */
/* .sub_visual_3 { animation: bg-active 5s; } */
@keyframes bg-active { 
    0% { transform: scale(1.09); opacity: 0.9; } 
   100% { transform: scale(1); opacity: 1; } 
    }
    /* sub_visual */
    .sub_visual_txt { position: absolute; top: 60%; left: 50%; transform: translate(-50%,-50%); z-index: 10;   width: 90%; max-width: 1380px; } 
    .sub_visual_txt h2 { font-size: 60px; text-align: center;   font-weight: 500; color: #fff;  } 
    .sub_visual_txt h2 em{font-size: 20px; display: block; font-style: normal;margin-bottom: 20px; text-decoration: underline; text-underline-offset : 5px;}
   /* top menu */
   .top_menu .mobile_sub_menu { display: none; } 
   
   /*sub공통*/
   .sub_inner{max-width: 1500px; margin:100px auto 200px ; width: 90%;}
   .sub_tit{font-size: 46px; text-align: center; color: #111;  font-weight: 600;margin-bottom: 80px;}



/*about us*/

.about{}
.about_top{}
.about_top h3{font-size: 30px; text-align: center; margin-bottom: 30px; font-weight: 200;}
.about_top div{margin-bottom: 30px; line-height: 2; word-break: keep-all;text-align: center; font-size: 22px; }
.about_top div span{color:var(--main-color) ; font-weight: 600;  font-size: 26px;}
.about_top div i{display: block;}

.about_middle{margin: 100px 0;}
.about_mid_img{width: 600px; margin: 0 auto;}
.about_mid_img img{width: 100%;}
.about_middle_list{display: flex; width:80%; margin: 0 auto; align-items: center;}
.about_middle_list li{width:calc(100% / 3 - 60px); margin: 0 30px; box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px; text-align: center; padding: 50px; background-color: #fff;}
.about_middle_list li:nth-child(2){margin-top: 130px;}
.about_middle_list li div{}
.about_middle_list li div img{}
.about_middle_list li h3{font-size: 20px; position: relative; margin: 20px 0 30px 0;}
.about_middle_list li h3::after{content: ""; background-color: var(--main-color);width: 60px; height: 2px; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%);}
.about_middle_list li p{font-size: 17px;line-height: 1.5;}

/**about->history***/
.about_bot{  margin-bottom: 200px; position: relative;}
.about_bot::after{content: "";background: url(../../img/about_bot_bg.png) no-repeat; width:540px; height: 145px; position: absolute; left:4% ; bottom: -40px;}
.about_bot h3{font-size: 30px; text-align: center; margin-bottom:100px ;}

.history_wrap { position: relative; } 
.history_wrap::before { content: ""; display: inline-block; width: 85%; height: 1px; border-top: 3px solid var(--main-color); position: absolute; left: 0; /*top: 39%; */top: 10px; } 

.history_wrap .history_slider{ width: 85%;  padding-left: 150px;}
.history_wrap h4 {  font-size: 52px; color: #094da0;  padding-top: 4rem; padding-bottom: 40px; position: relative; display: inline-block;font-weight: 200; opacity: 0.5; font-style: italic;} 
.history_wrap ul li { color: #808080; font-size: 20px; padding: 0.5rem 3rem 0.5rem 0; display: flex; word-break: keep-all; margin-bottom: 30px; opacity: 0.6;} 
.history_wrap ul li b{font-size: 20px ;color: #444; padding-right: 20px;}
.history_wrap ul li span{font-size: 20px; color: #444; }
.history_wrap ul li .block{display: flex;flex-direction: column;}
.history_wrap ul li .block .mar b{padding-right:40px ;}
.history_wrap ul li .block div{line-height: 2; display: flex;}

.history_wrap .swiper-slide-active h4 {   font-weight: 700; opacity: 1;} 
.history_wrap .swiper-slide-active li { color: #222; opacity: 1;} 
.history_wrap .swiper-slide { width: 40% !important; margin-right: 200px; } 
.history_sec { position: relative; } 
.history_sec h4::after { display: block; content: ""; width: 14px; height: 14px; position: absolute; top:4px; left: 50%; transform: translateX(-50%); z-index: 1; background-color: var(--main-color); box-sizing: content-box; border-radius: 50%;opacity: 1; } 

.his_arrow_wrap { position: absolute; top: 115px; right: 170px; display: flex; flex-direction: row; flex-wrap: nowrap; justify-content: space-around; align-items: center; z-index: 5; width: 200px; } 
.his_arrow_wrap > div { width: 70px; height: 70px;  position: relative; box-shadow: rgba(99, 99, 99, 0.2) 0px 2px 8px 0px; background-color: #fff; cursor: pointer;}  
.his_arrow_wrap .swiper-button-disabled { background: #fff; } 
.his_arrow_wrap .his_arrow_next { margin-right: 0%; } 
.his_arrow_wrap i { position: absolute; top: 50%; left: 50%; font-size: 26px; color: var(--main-color); transform: translate(-50%, -50%);} 


/*인사말*/
.greeting{position: relative;}
.greeting::before{content: ""; background: url(../../img/greeting_bg.png) no-repeat; width: 100%; height: 100%; position: absolute; left: 0;right: 0;top: 0;bottom: 0; z-index: -1; background-size: cover;}

.greeting_list{display: flex; flex-wrap: wrap; justify-content: space-between;}
.greeting_list li{}
.greeting_list .greet_img{width: 40%;}
.greeting_list .greet_img img{width: 100%;}
.greeting_list .greet_txt{width: 55%;}
.greeting_list .greet_txt h3{font-size: 30px; font-weight: 200;}
.greeting_list .greet_txt h3 span{color: var(--main-color);}
.greeting_list .greet_txt div{margin-top: 40px; line-height: 2;font-size: 18px; font-weight: 200; word-break: keep-all;}
.greeting_list .greet_txt div i{display: block;}
.greeting_list .greet_txt div span{font-weight: 600;}
.greeting_list .greet_txt div.sign{text-align: right; }
.greeting_list .greet_txt div.sign span{font-size: 22px;margin-right: 30px; font-weight: 200;}
.greeting_list .greet_txt div.sign img{}


/*연혁*/
.his2 .sub_inner{max-width: 1920px; width: 100%;}
#history { position:relative; } 
#history:before { content:''; display:block; position:absolute; top: 0; left: 0; background: url(../../img/history_bg.jpg) no-repeat center center/cover; width:100%; height: 1959px; z-index: -1;} 
#history .no_month .not_m { width: 100%; } 
#history .no_month .not_m i { display:none; } 
#history .tit_box { text-align: center; } 
#history .container { display: flex; flex-direction: column; align-items: center; } 
#history .title_box { text-align: center; } 
#history .title_box h1 { font-size: 30px; font-weight: 700; } 
#history .title_box h1:first-child { font-size: 36px; line-height: 1; } 
 /* history */
#history .contain1 .img_box { width: 82%; } 
 .history_wrap2 { border-bottom: 1px #ddd solid; position: relative; width: 90%; } 
 .history_wrap2::before { content: ""; display: inline-block; width: 1px; height: 100%; border-right: 2px dotted #ddd; position: absolute; left: 50%; top: 0; } 
 .history_wrap2::after { width: 100%; text-align: center; content: "HISTORY"; display: block; position: absolute; left: 50%; bottom: 0; font-size: 22rem; color: #e5e5e5; opacity: 0.2; transform: translateX(-50%); font-weight: 900; letter-spacing: -1px; margin-bottom: -40px;  line-height: 1; z-index: -1; } 
 /* .history_wrap2 .month { font-weight: 600; font-size: 1.8rem; width: auto; margin-right: 1rem; } 
 .history_wrap2 .month_now { color: #b6d7f4; font-size: 12px; }  */
 .history_wrap2>ul { margin-bottom: 1rem; padding-top: 5rem; } 
 .history_wrap2>ul>li { position: relative; width: 100%; margin-bottom: 7rem; } 
 .history_wrap2>ul>li.left div { width: 50%; margin-right: auto; padding-right: 6rem; } 
 .history_wrap2>ul>li.right div { width: 50%; margin-left: auto; padding-left: 6rem; } 
.history_wrap2>ul>li div.not_m { /* width: 92%; */padding-left: 0; flex: 1 1 auto; flex-basis: 0; } 
.history_wrap2>ul>li div.not_m span { display: flex; flex-direction: row; flex-wrap: nowrap; } 
.history_wrap2>ul>li.left div.not_m span { justify-content: flex-end; } 
.history_wrap2>ul>li.right div.not_m span { justify-content: flex-start; } 
.history_wrap2>ul>li div.not_m span i { padding-right: 7px; } 
.history_wrap2>ul>li.left div.not_m { padding-right: 0; } 
.history_wrap2>ul>li.left div li { display:flex; justify-content: flex-end; flex-wrap: nowrap; flex-direction: row; } 
#history .history_wrap2>ul>li.left div li a { display:flex; justify-content: flex-end; flex-wrap: wrap; flex-direction: row; } 
#history .history_wrap2>ul>li div li a { transition: all .4s; } 
#history .history_wrap2>ul>li div li a:hover { color:var(--main-color) } 
.history_wrap2>ul>li.left div li .month { order: 2; margin-right: 0; margin-left: 1rem; } 
 
 /* left before */
 .history_wrap2>ul>li::before { display: block; content: ""; width: 6px; height: 6px; border: 7px solid #d4e6ff; position: absolute; top: 4px; left: 50%; transform: translateX(-50%); z-index: 1; background-color: #3F51B5; box-sizing: content-box; border-radius: 50%; } 
 .history_wrap2>ul>li::after { display: block; content: ""; width: 39px; height: 2px; position: absolute; top: 13px; transform: translateX(-50%); background: #08539d9e; z-index: -1; } 
.history_wrap2>ul>.left::after { right: 49%; } 
.history_wrap2>ul>.right::after { left: 51.8%; } 
.history_wrap2>ul>.right { margin-left: auto; } 
 .history_wrap2>ul>.left { text-align: right; position: relative; } 
 .history_wrap2>ul>.left::before { right: -9px; } 
 .history_wrap2>ul>li h4 { font-size: 26px; color: var(--main-color);  padding-bottom: 1rem; } 
 .history_wrap2>ul>li> div ul>li { font-size: 18px; position: relative; line-height: 1.9; word-break: keep-all; display: flex; flex-direction: row; flex-wrap: wrap; justify-content: flex-start; align-items: flex-start; } 
 .history_wrap2>ul>li>ul>li.emph { font-size: 2.4rem; font-weight: 600; } 
 .history_wrap2>ul>li>ul>li.emph::after { top: 18px; } 



/*고객사*/
.custom_list{margin-bottom: 50px;}
.custom_list h3{font-size: 26px; padding-left: 30px; position: relative; margin-bottom: 20px;}
.custom_list h3::before{content: ""; background-color: var(--main-color); width: 8px; height: 8px; position: absolute; left: 10px; top: 0; border-radius: 50%;}
.custom_list ul{display: flex; flex-wrap: wrap;}
.custom_list ul li{width: calc(100% / 5 - 20px); margin: 10px; border: 1px solid #ddd; padding:20px; display: flex; justify-content: space-between; align-items: center;}
.custom_list ul li div{width: 35%;}
.custom_list ul li div img{width: 100%;}
.custom_list ul li p{font-size: 18px; width: 60%; text-align: center; letter-spacing: -1px;}



/*인증서*/
.certificate{margin-bottom: 50px; text-align: center;}
.certificate h3{font-size: 26px; padding-left: 30px; position: relative; margin-bottom: 20px;}
.certificate h3::before{content: ""; background-color: var(--main-color); width: 8px; height: 8px; position: absolute; left: 10px; top: 0; border-radius: 50%;}
.certificate ul{display: flex; flex-wrap: wrap;}
.certificate ul li{width: calc(100% / 5 - 20px); margin: 10px; border: 1px solid #ddd;  }
.certificate ul li img{width: 100%; display: block;}
.certificate ul li p{font-size: 18px; text-align: center; padding:20px; border-top: 1px solid #ddd;}


/*오시는길*/
.map_wrap{}

/* 오시는길 :: 하단정보1 */
.map-tbl-con{margin-top: 50px; overflow-x: auto;}
.map-tbl-con .map-tbl-tit{margin-bottom:20px; font-size:26px; color:#000; letter-spacing:-0.35px;}
.map-tbl-con .map-tbl-tit i{position:relative; top:2px; margin-right:5px; font-size:1.15em;}
.map-tbl-con .map-tbl-tit b{color:var(--main-color) ;}
.map-tbl{width:100%; border-top:2px solid var(--main-color);min-width: 700px;overflow-x: auto; }
.map-tbl th,.map-tbl td{padding:15px 20px; letter-spacing:-0.3px; font-size:18px; line-height:1.5; border-bottom:1px solid #dfdfdf; color:#000;}
.map-tbl th{width:250px;text-align:center; font-weight:500; background-color:#f8f8f8; font-size: 20px;}
.map-tbl td p{margin-top:5px}
.map-tbl td p:first-child{margin-top:0}

.map-tbl td ul{}
.map-tbl td ul li{margin: 20px 0;}
.map-tbl td ul li h3{margin-bottom: 10px;}
.map-tbl td ul li p{line-height: 1.8;}




/**제품***/
.product{}
.product .point{position: relative;}
.product .point::before{content: "";width: 7px; height: 7px;background-color: var(--main-color);position: absolute;  top: 10px; left: -20px; }
.product h3.point{font-size: 24px; padding-left: 10px; margin-bottom: 40px;}
.pro_section{margin-bottom: 100px;}

.pro_top{}
.pro_top ul{display: flex; justify-content: space-between; flex-wrap: wrap; align-items: center; border-bottom: 1px solid #ccc; padding-bottom: 80px;}
.pro_top ul li{}
.pro_top ul li:nth-child(1){width: 45%; border: 1px solid #ccc;}
.pro_top ul li:nth-child(1) .pro_slide{}
/* .pro_top ul li:nth-child(1) .pro_slide img{width: 100%;} */
.pro_top ul li:nth-child(1) .pro_slide .swiper-button-next{color: #ccc;}
.pro_top ul li:nth-child(1) .pro_slide .swiper-button-prev{color: #ccc;}

.pro_top ul li:nth-child(2){width: 50%;}
.pro_top ul li:nth-child(2) div:first-child{margin-bottom: 30px;}
.pro_top ul li:nth-child(2) div p{font-size: 21px; line-height: 1.8;}
.pro_top ul li:nth-child(2) div p i{display: block;}
.pro_top ul li:nth-child(2) div h3{font-size: 24px; margin-bottom: 10px; font-weight: 300;}

.pro_section p{font-size: 20px; line-height: 1.8;}
.pro_section p i{display: block;}
.pro1_sec3{display: flex; justify-content: space-between;}
.pro1_sec3 li{width:calc(100% / 3 - 20px) ; margin: 0 10px;  text-align: center;}
.pro1_sec3 li div{margin-bottom: 20px;}
.pro1_sec3 li div img{width: 100%; border: 1px solid #ccc;}

.pro1_sec4{}
.pro1_sec4 img{width: 100%;}
.pro1_sec5{text-align: center; margin-bottom: 50px;}
.pro1_sec5 img{}
.pro1_sec5 p{text-align: left;margin-left: 115px;}

.pro1_sec_table{display: flex; justify-content: space-between; flex-wrap: wrap;}
.pro1_sec_table .table_wrap{overflow-x: auto;}
.pro1_sec_table .tb_wrap1{width: 35%;}
.pro1_sec_table .tb_wrap2{width: 60%;}
.pro1_sec_table .table_wrap table{width: 100%; border-collapse: collapse;}
.pro1_sec_table .table_wrap table tr th{background-color: var(--main-color); color: #fff; padding: 20px 10px; font-size: 22px; text-align: center; font-weight: 500;}
.pro1_sec_table .table_wrap table tr td{ padding: 20px 10px; font-size: 18px; text-align: center; border: 1px solid #ccc;}

.pro_bot{position: relative;}
.pro_bot .pro_Installation{}
.pro_bot .pro_Installation .swiper-slide{text-align: center;}
.pro_bot .pro_Installation .swiper-slide img{border: 1px solid #ccc; padding: 50px;}
 
.pro_bot .pro_Installation .swiper-button-next{color: var(--main-color);  padding: 30px;     box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;}
.pro_bot .pro_Installation .swiper-button-next::after{font-size: 25px; font-weight: 700;}
.pro_bot .pro_Installation .swiper-button-prev{color: var(--main-color); padding: 30px;     box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;}
.pro_bot .pro_Installation .swiper-button-prev::after{font-size: 25px; font-weight: 700;}


/*문의하기*/
.form_wrap .inquiry_style1 h4{font-size: 24px; margin-bottom: 20px;}

.essential-icon {color: #ef4036;}
.form_wrap { margin-bottom: 0; } 
.form_wrap .inquiry_style1 .editor textarea {width: 100%;height: 150px;border: 1px solid #d9d9d9;padding: 20px;font-size: 15px;color: #444;display: block;} 
.form_wrap .inquiry_style1 p label { font-size: 18px; margin-left: 5px; } 
.form_wrap .inquiry_style1.inquiry_tbl_style2 { font-size: 16px; margin: 40px 0 50px; } 
.form_wrap .inquiry_style1 .inquiry_tbl_style1_icon {font-weight: 600;color: #ef4036;font-size: 17px;} 
.form_wrap .inquiry_style1.inquiry_tbl_style2 > span { text-align: right; display: block; margin-bottom: 5px; } 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl { width: 100%; border-top: 1px solid #333; } 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th,
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl td {padding: 10px 15px;border-bottom: 1px solid #d9d9d9;} 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th {color: #444;font-size: 18px;font-weight: 400;width: 12%;text-align: left;vertical-align: middle;} 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-input,
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-select,
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-textarea {border: 0px;background-color: #fff;border: 1px solid #d9d9d9;font-size: 14px;vertical-align: middle;padding: 10px;box-sizing: border-box;resize: none;} 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-textarea { width: 100%; height: 200px; } 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-input:focus { border-color: #333; } 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-input { text-indent: 10px; width: 20%; } 
.form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-select { height: 38px; width: 20%; } 
.form_wrap .cm_btn_controls .btn_submit1 {border: 2px solid var(--main-color);background: #fff;text-align: center;width: 220px;height: 60px;font-size: 20px;display: block;margin: 0 auto;border-radius: 10px;transition: all .3s;} 
/**/
.form_wrap .cm_btn_controls .btn_submit1:hover { border: 2px solid transparent; background: var(--main-color); color: #fff; transition: all .3s; } 


/*필요성*/
.pr_center .sub_inner{max-width: 1200px; margin:100px auto 200px ; width: 90%;}
.pr_tab{display: flex; justify-content: space-between;  margin-bottom:80px;}
.pr_tab.pr_tab_eng{justify-content: center;}
.pr_tab li{width: calc(100% / 2); border: 1px solid #ccc; transition: all .3s;}
.pr_tab li a{display: block; padding: 20px; text-align: center; font-size: 20px; color: #333; text-align: center; word-break: keep-all;}
.pr_tab li.on{background-color: var(--main-color);}
.pr_tab li.on a{color: #fff;}
.pr_tab li:hover{background-color: var(--main-color);}
.pr_tab li:hover a{color: #fff;}

.pr_wrap{margin-bottom: 100px;}
.pr_wrap .gray{background-color: #ddd; text-align: center; font-size: 18px; font-weight: 300;padding: 15px 0;}
.pr_wrap .point{position: relative; font-size: 24px; padding-left: 10px; margin-bottom: 30px;}
.pr_wrap .point::before{content: "";width: 7px; height: 7px;background-color: var(--main-color);position: absolute;  top: 10px; left: -20px; }
.pr_wrap .pr_txt{font-size: 20px; padding-left: 10px; position: relative; margin-bottom: 50px; line-height: 1.8;}
.pr_wrap .pr_txt::before{content: "";width: 15px; height: 2px;background-color: var(--main-color);position: absolute;  top: 15px; left: -20px;}
.pr_wrap .pr_txt i{display: block;}
.pr_wrap h4{font-size: 19px; text-align: center; font-weight: 200; word-break: keep-all;}
.pr_img_wrap{text-align: center; margin-bottom: 30px;}
.pr_img_wrap img{border: 1px solid #ccc;}

.pr_flex{display: flex;}
.pr_sec2{border: 1px solid #ccc; padding: 50px 0 ; align-items: center; justify-content: space-between;}
.pr_sec2 div{ margin:0 30px;}
.pr_sec2 div img{border: none;}
.pr_sec2 div:nth-child(1){width: 50%;}
.pr_sec2 div:nth-child(1) img{width: 100%;}
.pr_arrow{position: relative; border: 1px solid var(--main-color); padding: 50px 0; width: 37%; border-radius: 30px;}
.pr_arrow::before{content: ""; background: url(../../img/pr_arrow.png) no-repeat; width: 80px; height: 80px; position: absolute; left: -90px; top: 50%; transform: translateY(-50%); background-size: cover;}
.pr_arrow h3{font-size: 24px; text-align: center; font-weight: 300; line-height: 1.2;}
.pr_arrow h3 span{font-size: 30px; font-weight: 600;}
.pr_arrow h3:nth-child(1){margin-bottom: 20px;}
.pr_arrow h3:nth-child(1) span{display: block;}
.pr_arrow h3 b{font-size: 30px; font-weight: 600; color: var(--main-color);}


.pr_sec3{}
.pr_sec3 img{border: none; width: 100%;}
.pr_sec3> div{width:calc(100% / 3 - 20px); margin:0 10px; border: 1px solid #ccc;}
.pr_sec3> div:nth-child(2){display: flex; align-items: center;}
.pr_sec3 ul{display: flex; margin-top: 20px;}
.pr_sec3 ul li{width: calc(100% / 2 - 10px); margin: 0 5px;}
.pr_sec3 ul li span{font-size: 16px;}

.pr_sec4{}
.pr_sec4 img{border: none; width: 100%;}
.pr_sec4 div{border: 1px solid #ccc; width: 80%; margin: 0 auto 30px;}

.pr_sec4 div:nth-child(1) ul{display: flex; align-items: center;}
.pr_sec4 div:nth-child(1) ul li{width: calc(100% / 2 - 20px); margin: 0 10px;}
.pr_sec4 div:nth-child(1) ul li p{font-size: 16px; margin: 15px 0;}


.pr_sec4 div:nth-child(2) ul{display: flex; align-items: center; justify-content: space-between;}
.pr_sec4 div:nth-child(2) ul li:nth-child(1){width: 40%;}
.pr_sec4 div:nth-child(2) ul li:nth-child(2){width: 55%;}
.pr_sec4 div:nth-child(2) ul li p{font-size: 16px; margin: 15px 0; padding: 0 10px;}


.pr_sec5{justify-content: space-between;}
.pr_sec5 img{border: none; width: 100%;}
.pr_sec5 div{border: 1px solid #ccc; padding-bottom: 20px;}
.pr_sec5 div:nth-child(1){width: 27%;}
.pr_sec5 div p{font-size: 16px;text-align: center;}
.pr_sec5 div:nth-child(2){width: 70%;}

.pr_sec6{position: relative;}
.pr_wrap .pro_Installation{position: relative;}
.pr_wrap .pro_Installation .swiper-slide{text-align: center;}
.pr_wrap .pro_Installation .swiper-slide img{border: 1px solid #ccc;  width: 100%;}
.pr_wrap .pr_sec6_btn{position:absolute; width: 1400px; top: 65%; left: -100px;}
.pr_sec6 .swiper-button-next{color: var(--main-color);  padding: 30px;     box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;}
.pr_sec6 .swiper-button-next::after{font-size: 25px; font-weight: 700;}
.pr_sec6 .swiper-button-prev{color: var(--main-color); padding: 30px;     box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;}
.pr_sec6 .swiper-button-prev::after{font-size: 25px; font-weight: 700;}

.pr_sec7_list{display: flex; flex-wrap: wrap; position: relative; justify-content: space-between;margin-bottom: 50px;}
.pr_sec7_list li{width: calc(100% / 4 - 20px); border: 1px solid var(--main-color); padding: 20px 10px; text-align: center; font-size: 18px;}

.pr_sec8{}
.pr_sec8 img{width: 100%;}



/*필요성2*/

.pr2_sec1{align-items: center; justify-content: space-between;}
.pr2_sec1 img{width: 100%; border: 1px solid #ccc;}
.pr2_sec1 div:nth-child(1){width: 28%;}
.pr2_sec1 div:nth-child(2){width: 65%;}
.pr2_sec1 div:nth-child(2) h3{font-size: 18px; text-align: left; margin-bottom: 20px; word-break: keep-all;}
.pr2_sec1 div:nth-child(2) p{font-size: 18px; text-align: left; margin-bottom: 20px;}

.pr2_sec2_txt{margin-bottom: 50px;}
.pr_sec2 img{width: 100%; border: 1px solid #ccc; border: none;}
.pr2_sec2_txt h3{font-size: 22px; margin-bottom: 20px;}
.pr2_sec2_txt p{font-size: 18px; line-height: 2;}

.pr2_sec3{display: flex; justify-content: space-between;}
.pr2_sec3 li{width: calc(100% / 3 - 20px); margin: 0 10px; border: 1px solid #ccc;}
.pr2_sec3 li img{width: 100%;}

.pr2_sec4{}
.pr2_sec4 img{width: 100%; border: 1px solid #ccc;}

.pr2_sec5{}
.pr2_sec5 img{width: 100%; border: 1px solid #ccc;}


  /*******************************반응형*************************************/
  @media (max-width: 1700px) { 
    /*about us*/
    .history_wrap::before{width: 80%;}

  }

  @media (max-width: 1540px) {  

    /*about us*/
    .about_top div i{display: inline;}
    
    /* 연혁 */
    .history_wrap2::after{font-size: 200px;}

    /*제품*/
    .pro_bot .pro_Installation .swiper-slide img{width: 80%;}
    .pro1_sec5 img{width: 100%;}
    .pro1_sec5 p{margin-left: 34px;}
}

@media (max-width: 1380px) {  

   /*about us*/
   .about_middle_list{width: 95%;}
   .history_wrap .history_slider{width: 90%; padding-left: 80px;}
   .history_wrap::before{width: 74%;}
   .history_wrap ul li .block div{display: flex;}
   .history_wrap h4{font-size: 42px;}
   .history_wrap ul li span{font-size: 18px;}
   .history_wrap ul li b{font-size: 18px;}

    /*제품*/
    .pro_top ul li:nth-child(1) .pro_slide .swiper-wrapper{align-items: center;}
    .pro_top ul li:nth-child(1) .pro_slide .swiper-slide img{width: 100%;}
    .pro1_sec5 p{margin-left: 10px;}

    /*필요성*/
    .pr_wrap .pro_Installation{width: 90%;}
    .pr_wrap .pr_sec6_btn{width: 1280px; left: -40px;}

}
@media (max-width: 1280px) {  

  /*sub_top*/
  .sub_visual_txt h2{font-size: 50px;}

   /*about us*/
   .about_top div{font-size: 20px;}
   .about_middle_list{width: 100%;}

   /*인사말*/
   .greeting_list .greet_txt h3{font-size: 25px;}
   .greeting_list .greet_txt div.sign img{width: 100px;}

   /*고객사*/
   .custom_list ul li{width:calc(100% / 4 - 20px); }

    /*제품*/
    .pro_top ul li:nth-child(2) div p{font-size: 19px;}
    .pro_top ul li:nth-child(2) div h3{font-size: 22px;}
    .product h3.point{font-size: 22px}
    .pro_section p{font-size: 19px;}
    .pro1_sec5 p{margin-left: 0;}
    .pro1_sec_table .table_wrap table tr th{font-size: 20px;}
    .pro1_sec_table .table_wrap table tr td{font-size: 17px;}

     /*필요성*/
     .pr_wrap .point{font-size: 22px}
     .pr_tab li a{font-size: 22px;}
     .pr_wrap .pr_sec6_btn{width: 107%;}
     .pr_img_wrap img{width: 100%;}
    
}
@media (max-width: 1024px) {  

 /*sub_top*/
 .sub_tit{font-size: 36px;}
   
 /*about us*/
 .about_top h3{font-size: 26px;}
 .about_bot h3{font-size: 26px;}
 .about_top div{font-size: 18px; }
 .about_top div span{font-size: 22px;}
 .about_middle_list li{padding: 20px; width: calc(100% / 3 - 40px); margin: 0 20px;}
 .about_middle_list li h3{font-size: 18px;}
 .about_middle_list li p{font-size: 16px;}
 .history_wrap::before{width: 90%;}
 .his_arrow_wrap{right: 50px; width: 150px; top: 65px;}
 .his_arrow_wrap > div{width: 60px; height: 60px;}
 .history_wrap h4{font-size: 32px;}
 .history_wrap ul li{padding: 0;}
 .history_wrap ul li .block div{margin-bottom: 10px;}
 .history_wrap .swiper-slide{margin-right: 100px;}
 .history_wrap ul li span{font-size: 16px;}
    

  /*인사말*/
  .greeting_list{flex-direction: column;}
  .greeting_list .greet_img{width: 100%; order: 2; text-align: center;}
  .greeting_list .greet_txt{width: 100%; order: 1;}
  .greeting_list .greet_txt div{margin-top: 30px; }
  .greeting_list .greet_img img{width: 500px;}

  /*연혁*/
  .history_wrap2::after{font-size: 150px; bottom: 15px;}

   /*고객사*/
   .custom_list ul li p{font-size: 18px;}
   .custom_list h3{font-size: 24px;}

   /*인증서*/
   .certificate h3{font-size: 24px;}
   .certificate ul li{width: calc(100% / 4 - 20px);}

   /*제품*/
   .pro_top ul li:nth-child(2) div p{font-size: 18px;}
   .pro_top ul li:nth-child(2) div h3{font-size: 20px;}
   .product h3.point{font-size: 20px; margin-bottom: 30px;}
   .pro_section p{font-size: 18px;}
   .pro1_sec_table .table_wrap table tr td{word-break: keep-all;}
   .pro_bot .pro_Installation .swiper-button-next, .pro_bot .pro_Installation .swiper-button-prev{padding: 25px;}

   /*문의하기*/
  .form_wrap .inquiry_style1 .editor textarea,
  .form_wrap .inquiry_style1.inquiry_tbl_style2 {font-size: 14px;}
  .form_wrap .inquiry_style1 p label,
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th {font-size: 16px;}
  .form_wrap .inquiry_style1 .inquiry_tbl_style1_icon {font-size: 15px;}
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-input {width: 100%;}
  .form_wrap .cm_btn_controls .btn_submit1 {width: 250px; height: 60px; font-size: 20px;}

   /*필요성*/
   .pr_wrap .point{font-size: 20px}
   .pr_arrow::before{width: 50px; height: 50px; left: -70px;}
   .pr_wrap .pr_sec6_btn{width: 109%; top: 70%;}
   .pr_tab li a{font-size: 18px;}
   .pr_tab li{display: flex; justify-content: center; align-items: center;}
   .pr_arrow h3{font-size: 22px;}
   .pr_arrow h3 span{font-size: 26px;}
   .pr_arrow h3 b{font-size: 28px;}
   .pr_wrap h4{font-size: 18px;}
   .pr_sec3{flex-direction: column;}
   .pr_sec3> div{width: 60%; margin: 10px auto;}
   .pr_sec4 div{width: 90%;}
   .pr_sec5{flex-direction: column;}
   .pr_sec5 div:nth-child(1){width: 60%; margin: 10px auto;}
   .pr_sec5 div:nth-child(2){width: 90%; margin: 10px auto;}
   .pr_wrap .pr_sec6_btn{width: 106%; left: -28px;}
   .pr_sec6 .swiper-button-next, .pr_sec6 .swiper-button-prev{padding: 25px;}

}
@media (max-width: 800px) {  

  /*sub_top*/
  .sub_visual_txt h2{font-size: 40px;}
  .sub_tit{font-size: 32px; margin-bottom: 50px;}
  .sub_inner{margin: 100px auto;}

   /*about us*/
   .about_top h3{font-size: 24px;}
   .about_bot h3{font-size: 24px;}
   .about_mid_img{display: none;}
   .about_middle{margin: 50px 0;}
   .about_middle_list{flex-wrap: wrap;}
   .about_middle_list li{width: 80%; margin: 10px auto; padding: 40px 20px;}
   .about_middle_list li:nth-child(2){margin-top: 10px;}
   .history_wrap .history_slider{padding-left: 30px;}
   .history_wrap .swiper-slide{width: 55% !important;}
   .history_wrap h4{font-size: 26px;}
   .about_bot::after{width: 400px; bottom: -120px; background-size: contain;}


  /*인사말*/
  .greeting_list .greet_txt div{margin-top: 20px;}
  .greeting_list .greet_txt h3{font-size: 22px;}
  .greeting_list .greet_txt{margin-bottom: 50px;}


    /* 연혁 */
  .history_wrap2::before { left: 6%; } 
  .history_wrap2>ul>.right::after,
  .history_wrap2>ul>.left::after { left: 8%; width: 30px; } 
  .history_wrap2>ul>li::before { left: 6%; } 
  
  .history_wrap2::after { font-size: 100px; bottom: 1rem; } 
  .history_wrap2>ul>li.right > div { margin: unset; width: 100%; padding-left: 12%; } 
  .history_wrap2>ul>li.left > div { margin: unset; width: 100%; padding-right: 0; padding-left: 12%; } 
  .history_wrap2>ul>.left::after { right: unset; left: 8%; } 
  .history_wrap2>ul>li h4 { text-align: left; } 
  .history_wrap2>ul>li.left div li { } 
  .history_wrap2>ul>li.left div li .month { order: unset; margin-left: 0; margin-right: 1rem; } 
  .history_wrap2>ul>li.left div.not_m span { justify-content: flex-start; text-align: left; } 
  .history_wrap2>ul>.left> div ul>li::after { right: unset; left: -15px; width: 4px; height: 4px; } 
  .history_wrap2>ul>.right> div ul>li::after { right: unset; left: -15px; width: 4px; height: 4px; }

  /*고객사*/
    .custom_list ul li{width: calc(100% / 3 - 20px);}

  /*인증서*/
  .certificate ul li{width: calc(100% / 3 - 20px);}

  /* 오시는길 :: 하단정보1 */
  .map-tbl-con .map-tbl-tit{font-size:18px;}
  .map-tbl th,.map-tbl td{padding:15px 10px; font-size:18px; }

 /*제품*/
 .pro_top ul{flex-direction: column;}
 .pro_top ul li:nth-child(1){width: 80%; margin-bottom: 50px;}
 .pro_top ul li:nth-child(2){width: 90%;}
 .pro_section p{font-size: 16px;}
 .pro1_sec_table{flex-direction: column;}
 .pro1_sec_table .tb_wrap1{margin-bottom: 30px;}
 .pro1_sec_table .tb_wrap1, .pro1_sec_table .tb_wrap2{width: 100%;}
 .pro_bot .pro_Installation .swiper-slide img{width: 90%; border: none;}
 .pro_bot .pro_Installation .swiper-slide{border: 1px solid #ccc;}

  /*문의하기*/
  .form_wrap .inquiry_style1 .editor textarea,
  .form_wrap .inquiry_style1.inquiry_tbl_style2 {font-size: 13px;}
  .form_wrap .inquiry_style1 .editor textarea {height: 100px;padding: 15px;}
  .form_wrap .inquiry_style1 p label,
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th {font-size: 14px;}
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th {width: 17%;}
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-textarea {height: 150px;}
  .form_wrap .inquiry_style1 .inquiry_tbl_style1_icon {font-size: 14px;}

  /*필요성*/
  .pr_sec2{flex-direction: column;}
  .pr_sec2 div:nth-child(1){width: 80%;}
  .pr_sec2 div{margin: 30px 0;}
  .pr_arrow{width: 60%;}
  .pr_arrow h3{font-size: 20px;}
  .pr_arrow h3 b{font-size: 25px;}
  .pr_arrow h3 span{font-size: 24px;}
  .pr_arrow::before{left: 45%; top: -80px; transform: rotate(90deg);}
  .pr_sec3> div{width: 70%;}
  .pr_sec5 div:nth-child(1){width: 70%;}
  .pr_wrap .pro_Installation{width: 80%;}
  .pr_wrap .pr_sec6_btn{width: 100%; left: 0; top: 77%;}
  .pr_sec6 .swiper-button-next, .pr_sec6 .swiper-button-prev{padding: 20px;}
  .pr_sec7_list li{font-size: 16px; width: calc(100% / 4 - 10px);}


}
@media (max-width: 650px) {  
  
  /*sub_top*/
  .sub_visual_box{height: 450px;}
  .sub_visual_txt h2 em{font-size: 18px;}
  .sub_visual_txt h2{font-size: 34px;}
  .depth_wrap > div.home_btn{display: none;}
  .sub_tit{font-size: 28px;}
  
    /*about us*/
    .about_top div{font-size: 17px;}
    .about_top div span{font-size: 18px;}
    .about_middle_list li{width: 90%;}
    .his_arrow_wrap{top: 50px; right: 30px;}
    .history_wrap .swiper-slide{width: 65% !important;}
    .history_wrap h4{font-size: 22px; padding-bottom: 20px;}
 
 
    /*인사말*/
    .greeting_list .greet_img img{width: 60%;}

    /*고객사*/
    .custom_list ul li{width: calc(100% / 2 - 20px);}
    .custom_list h3{font-size: 22px;}

    /*인증서*/
    .certificate h3{font-size: 22px;}
    .certificate ul li{width: calc(100% / 2 - 20px);}

    /*제품*/
    .pro_top ul li:nth-child(1){width: 90%;}
    .product h3.point{font-size: 18px;}
    .product .point::before{left: -10px;}
    .pro1_sec3{flex-direction: column;}
    .pro1_sec3 li{width:90%; margin: 20px auto;}
    .pro1_sec_table .table_wrap table tr th{font-size: 18px;}
    .pro1_sec_table .table_wrap table tr td{font-size: 16px;}
    .pro_top ul li:nth-child(1) .pro_slide .swiper-button-next::after{font-size: 30px;}
    .pro_top ul li:nth-child(1) .pro_slide .swiper-button-prev::after{font-size: 30px;}

     /*필요성*/
     .pr_arrow{width: 80%;}
     .pr_arrow::before{left: 43%;}
     .pr_sec3> div{width: 80%;}
     .pr_sec5 div:nth-child(1){width: 90%;}
     .pr_sec5 div:nth-child(2){width: 100%;}
     .pr_wrap .pr_sec6_btn{width: 103%; left: -10px;}
     .pr_sec7_list{margin-bottom: 30px;}
     .pr_sec7_list li{width:calc(100% / 2 - 20px); margin: 10px;}

     .pr2_sec1{flex-direction: column;}
     .pr2_sec1 div:nth-child(1){width: 80%;}
     .pr2_sec1 div:nth-child(2){width: 100%; margin-top: 30px;}
     .pr2_sec2_txt h3{font-size: 20px;}
     .pr2_sec3{flex-direction: column;}
     .pr2_sec3 li{width: 100%; margin: 10px 0;}

}
@media (max-width: 480px) {  
  .sub_tit{font-size: 24px;}
  .depth_wrap{width: 95%;}
  .depth_wrap > div{padding: 0 15px;}
  .depth_wrap .depth_name{font-size: 16px;}
  .depth_wrap > div .depth_name i{font-size: 18px;}
  .visual_menu_wrap .com_depth li a{font-size: 14px; word-break: keep-all;}

  /*about us*/
  .about_top div{font-size: 16px;}
  .about_top h3{font-size: 22px;}
  .about_bot h3{font-size: 22px;}
  .history_wrap ul li{margin-bottom: 20px;}
  .history_wrap ul li .block div{line-height: 1.5;}
  .about_bot::after{display: none;}
  .history_wrap .swiper-slide{width: 80% !important;}

  /*인사말*/
  .greeting_list .greet_txt h3{font-size: 20px; word-break: keep-all; line-height: 1.5;}
  .greeting_list .greet_txt div{font-size: 16px; }
  .greeting_list .greet_txt div.sign span{font-size: 20px;}
  .greeting_list .greet_txt div.sign img{width: 70px;}
  .greeting_list .greet_img img{width: 70%;}

  /* 연혁 */
  .history_wrap2>ul>li.right > div,.history_wrap2>ul>li.left > div { padding-left: 56px; } 
  .history_wrap2::after { font-size: 70px; bottom: 2rem; } 
  .history_wrap2>ul>.right::after,
  .history_wrap2>ul>.left::after { left: 11%; width: 20px; } 
  .history_wrap2>ul>li> div ul>li{width: 95%;}
   
    
  /*고객사*/
  .custom_list h3{font-size: 20px;}
  .custom_list ul li{padding: 20px 10px;}
  .custom_list ul li p{font-size: 16px; width: 65%;}
  .custom_list ul li div{width: 30%;}

  /*인증서*/
  .certificate h3{font-size: 20px;}
  /*오시는길*/
  .map-tbl td{font-size:16px; }

     /*제품*/
     .pro_top ul li:nth-child(1){width: 100%;}
     .pro_section{margin-bottom: 70px;}
     .pro_bot .pro_Installation .swiper-button-next, .pro_bot .pro_Installation .swiper-button-prev{padding: 15px;}
     .pro_bot .pro_Installation .swiper-button-next::after{font-size: 15px;}
     .pro_bot .pro_Installation .swiper-button-prev::after{font-size: 15px;}
     .product .point::before{width: 5px; height: 5px; top: 7px;}
     .pro1_sec_table .table_wrap table tr th{padding: 10px;}
     .pro1_sec_table .table_wrap table tr td{padding: 15px;}
     .pro_bot .pro_Installation .swiper-slide img{padding:30px;}

  /* 문의하기 */
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th,
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl td {display: table;width: 100%;word-break: break-word;border-bottom: 0;}
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl td { padding: 0; }
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl th {width: 100%; padding: 10px;}
  .form_wrap .inquiry_style1.inquiry_tbl_style2 .write-tbl .write-textarea {height: 100px;}
  .form_wrap .cm_btn_controls .btn_submit1 { font-size: 18px;}

  /*필요성*/
  .pr_tab li a{padding: 15px; line-height: 1.5;}
  .pr_wrap{margin-bottom: 70px;}
  .pr_wrap .point::before{left: -7px;}
  .pr_wrap .pr_txt::before{width: 10px; left: -10px;}
  .pr_wrap .pr_txt{font-size: 16px;}
  .pr_arrow h3{font-size: 18px; }
  .pr_arrow h3 span{font-size: 22px;}
  .pr_arrow h3 b{font-size: 23px;}
  .pr_sec3> div{width: 100%;}
  .pr_wrap .gray{font-size: 17px;}
  .pr_sec4 div{width: 100%;}
  .pr_sec4 div:nth-child(1) ul{flex-direction: column;}
  .pr_sec4 div:nth-child(1) ul li{width: 90%;}
  .pr_sec4 div:nth-child(2) ul{flex-direction: column;}
  .pr_sec4 div:nth-child(2) ul li:nth-child(1){width: 90%;}
  .pr_sec4 div:nth-child(2) ul li:nth-child(2){width: 90%;}
  .pr_sec5 div:nth-child(1){width: 100%;}
  .pr_sec5 div:nth-child(2) img{margin: 20px 0;}
  .pr_wrap .pr_sec6_btn{top: 83%;}
  .pr_sec6 .swiper-button-next, .pr_sec6 .swiper-button-prev{padding: 15px;}
  .pr_sec6 .swiper-button-next::after{font-size: 15px;}
  .pr_sec6 .swiper-button-prev::after{font-size: 15px;}
  .pr_sec7_list{margin-bottom: 10px;}
  .pr_sec7_list li{padding: 10px;}
  .pr_wrap .pro_Installation .swiper-slide img{border: none;}

  .pr_wrap .point{font-size: 18px;}
  .pr2_sec2_txt p{font-size: 16px;}
  .pr2_sec2_txt h3{font-size: 18px;}
  .pr2_sec1 div:nth-child(2) p, .pr2_sec1 div:nth-child(2) h3{font-size: 16px;}

}

@media (max-width: 400px) {  
  /*about us*/
  .history_wrap .swiper-slide{width: 90% !important;}
  .his_arrow_wrap{width: 120px;}
  .his_arrow_wrap > div{width: 50px; height: 50px;}

   /*필요성*/
   .pr_tab{flex-direction: column;}
   .pr_tab li{width: 100%;}
   .pr_wrap .pr_sec6_btn{top: 87%;}

}