*{
	margin:0px;
	padding:0px;
	display:block;
    font-family: 'Montserrat', sans-serif;
    font-weight: 400;
	box-sizing: border-box;
}
.content_body{
    box-sizing: border-box;
}
head{
	display:none;
}
.header{
	width:100%;
	height:auto;
	display:flex;
	justify-content:center;
    align-items: center;
    position: relative;
	}
.header img{
    width:auto;
    height:180px;
    margin: 30px 0px 5px 0px;
}

.menutop{
    width: 100%;
    position: relative;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgb(0, 0, 0);
}
.menulogo3 {
    width:auto;
    height:auto;
	}
.menulogo3 img{
    cursor: pointer;
    height: 15px;
    width: 15px;
}
.menutop_center{
    width:1140px;
    height:80px;
    display: flex;
    justify-content:space-between;
    align-items: center;
}
.menutop_left{
    flex:1;
}

.menutop_center ul{
    display: flex;  
    list-style: none;
}
.menutop_left ul li{
    display: inline-block;
}
.menutop_left ul ul{
    position:absolute;
    z-index: 2;
    transform: translateY(-20%);
    opacity: 0;
}
.menutop_left ul li:hover>ul{
    transform: translateY(0);
    opacity: 1;
    transition: all linear 0.3s;
}
.menutop_left ul ul li a{
    font-size:12px;
    color:rgb(255, 255, 255);
    text-decoration: none;
    padding: 0px 10px 0px 10px;
    margin-left:2px;
    margin-right:-1px;
    line-height:59px;
    transition: all linear 0.3s;
    background-color: rgba(0, 0, 0,0.8);
}
.menutop_left ul ul li a:hover{
    background-color: rgba(0, 29, 38, 0.7);
    color:#ffffff;
}

.under1::after{
    content: '';
    display:block;
    width: 100%;
    height: 3.5px;
    background-color:rgb(0, 0, 0);
    transform: scale(0, 1);
    transition: transform .3s ease;
}
.under1:hover::after{
    transform: scale(1, 1);
    transition: transform .3s ease;
}
.menutop_left li a{
    font-size:14px;
    color:black;
    text-decoration: none;
    padding: 0px 30px 0px 2px;
    line-height:78px;
}
.hotline{
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    margin-right:30px;
}
.hotline i{
    font-size:16px;
    color:rgb(0, 0, 0);
    margin-right:10px;
}
.hotline span{
    font-size:16px;
    color:rgb(0, 0, 0);
}
.menutop_right ul{
    display: flex;
    list-style: none;

}
.menutop_right ul li a{
    font-size:12px;
    margin: 0px 2px 0px 5px;
    color:rgb(0, 0, 0);
    width:30px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    border-radius: 50%;
    border:1px solid #666;
    background-color:#ffffff;
    transition: all linear 0.5s;
}
.menutop_right ul li a:hover{
    color:#ffffff;
    background-color: black;
}
#gach_lienhe::after{
    transform: scale(1, 1);
}






    .footer{
        width:100%;
        height:auto;
        background-color:#000000;
        display: flex;
        justify-content: center;
        align-items: center;
        
    }
    .footersub{
        width:1140px;
        min-height: 60px;
        position:relative;
        display: flex;
        justify-content:center;
        align-items: center;
        flex-direction: column;
    }
    .footersub hr{
        width:100%;
        height:0.5px;
        background-color: rgb(255, 255, 255);
        border:none;
        
    }
    .footersub1{
        min-height:60px;
        width: auto;
    }
    .footersub1 a img{
        width:auto;
        height:150px;
        margin: 30px 0px;
    }
    .footersub2{
        width: 100%;
        display: flex;
        justify-content:space-between;
        padding: 30px 0;
    }

    .footersub2 ul{
        flex: 3;
        list-style: none;
        display:flex;
        justify-content:space-evenly;
    }
    .footersub2 ul li{
        display: inline-block;
    }
    .footersub2 ul li a {
        display:block;
        text-decoration: none;
        color:white;
        font-size:15px;
    }
    .footersub2 ul li a:hover{
        color:#ffffff;
    }
    .footersub2_icon{
        display:flex;
        flex:2.5;
        justify-content: space-evenly;
    }
    .footersub2_icon a{
        text-decoration: none;
        color:white;
        font-size:12px;     
        width:30px;
        height: 30px;
        text-align: center;
        line-height: 30px;
        border-radius: 50%;
        border:1px solid rgb(255, 255, 255);
        transition: all linear 0.5s;
    }
    .footersub2_icon a:hover{
        background-color: white;
        color:#000000;
    }
    .footersub3{
        width: 100%;
        height: auto;
        display: flex;
        align-items: center;
        justify-content: center;
        padding-bottom:30px;
    }
    .footersub3 p{
        font-size:15px;
        color:white;
    }
    .footersub3 i{
        font-size:16px;
        color:white;
        margin-right:10px;
    }
    .uphot{
        position: fixed;
        right:0%;
        bottom:25%;
        display: flex;
        flex-direction: column;
        justify-content:center;
        align-items: center;
    }
    .uptop{
        display:none;
        cursor:pointer;
        z-index: 1000;
        }

    .uptop img{
        width:39px;
        height:39px;
        }
    .overlay{
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.3);
        display:none;
        animation: fadeIn linear 0.2s;
    }
    .sidebar_tab{
        position:fixed;
        right:0;
        top:0;
        height: auto;
        width: 220px;
        max-width: 100%;
        background-color:  rgba(0, 0, 0, 0.3);
        transform: translateX(100%);
        opacity: 0;
        transition: transform linear 0.3s, opacity linear 0.2s;
        z-index: 10;
    }
    .sidebar_tab ul li a{
        text-decoration: none;
        color:#ffffff;
        display:block;
        padding: 22px 15px;
        font-size:16px;
        text-align: end;
        border-bottom: 1px solid #ffffff;
        transition: all linear 0.5s;
    }

    .cancel-button{
        position:absolute;
        width: 20px;
        height: 20px;
        top:5px;
        left:5px;

    }
    .cancel-button img{
        width: 28px;
        height: 28px;
    }
    .mobile_input:checked ~ .overlay {
        display: block;
    }
    .mobile_input{
        display:none;
    }
    .mobile_input:checked ~ .sidebar_tab{
        transform: translateX(0);
        opacity: 1;
    }

    @keyframes fadeIn {
        from {
            opacity:  0;
        }
        to {
            opacity: 1;
        }
    }
    .content_body1{
        position: relative;
        width: 100%;
        height: auto;
        display: flex;
        justify-content:center;
        align-items: center;
    }
    .body_part1{
        width: 1140px;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
    }
    .product_h3{
        width:100%;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        margin: 50px 0px 30px 0px;
        color:rgb(0, 0, 0);
    }
    .product_h3 h3{
        font-size:26px;
        font-weight:bold;
    }
    .product_h3 img{
        width:auto;
        height:26px;
        margin-top:10px;
    }
    .part1_info{
        width:100%;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        color:rgb(0, 0, 0);
    }
    .part1_info img{
        width:100%;
        height: auto;
        margin: 30px 0px;
    }
    .part1_info p{
        width:100%;
        font-size:16px;
        color:rgb(0, 0, 0);
        text-align:justify;
        line-height: 39px;
        padding:10px;
    }
    .part1_info u{
        display: inline-block;
    }
    .part1_info img{
        margin: 0px;
    }
    .doitac{
        display: flex;
        justify-content: space-evenly;
        align-items: center;     
        margin: 10px 0px;
        flex-wrap: wrap;
    }
    .doitac img{
        width:200px;
        height: auto;
        margin:10px;
    }
    .videoWrapper {
        position: relative;
        width:100%;
        height: auto;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom:30px;
      }
      .videoWrapper iframe {
        width:1140px;
        height: 640px;
      }
    @media(max-width: 1140px){
        .videoWrapper {
            position: relative;
            padding-bottom: 56.25%; /* 16:9 */
            height: 0;
          }
          .videoWrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
          }
    }
    @media(min-width: 1024px){
        .sidebar_tab ul li a:hover{
            background-color: #999;
            text-align: center;
        }
        .menulogo3{
            display:none;
        }
        .product_h3 p {
            margin-top:30px;
        }
    }

    @media(min-width: 740px) and (max-width: 1024px){
        .menutop_left ul li a{
            font-size:12px;
        }
        .menutop_right ul li a{
            width:20px;
            height: 20px;
            line-height: 20px;
            font-size:10px;
        }
        .menutop_left ul ul li a{
            font-size:14px;
        }
        .hotline i{
            font-size: 12px;
        }
        .hotline span{
            font-size: 14px;
        }
        .hotline{
            display:none;
        }  

    .uphot{
        position: fixed;
        right:-3%;
    }
    .menutop_left li a{
        font-size: 16px;
    }
    .hotline span{
        font-size: 16px;
    }
    .menulogo3{
        display:none;
    }
    .footersub1 a img{
        height: 100px;
    }
    .footersub{
        flex-direction: column;
    }
    .footersub1{
        margin: 0 auto;
    }
    .footersub2{
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .footersub2 ul li a{
        padding: 0 40px;
        padding-bottom:20px;
    }
    .footersub2_icon a{
        margin: 0 30px;
    }
    .intro_content2{
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
 
    }
    @media(max-width: 740px){
        .body_part1 p{
            font-size:14px;
        }
        .header{
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }       
        .header img{
            width: auto;
            height: 80px;
            margin:10px 0;
        }
        .menulogo3 {
            border: 1px solid #666;
            width:100%;
        }
        .menulogo3 img{
            cursor: pointer;
            height: 12px;
            width: auto;
            padding: 0 10px;
        }

        .uphot{
            position: fixed;
            right:-7%;
        }
        .menutop{
            display:none;
        }

        .footersub{
            
            flex-direction: column;
        }
        .footersub1{
            margin: 0 auto;
        }
        .footersub2 ul li a{
            font-size:12px;
            padding-bottom:20px;
        }
        .footersub2{
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .footersub3 p{
            font-size:12px;
        }
        .sidebar_tab{
            width:100%;
            height: 100%;
            background-color: black;
        }
        .sidebar_tab ul li a{
            text-align: center;
        }
        .product_h3{
            margin:0px;
            margin-top:39px;
        }
        .product_h3 img,.road img{
            width:80px;
            height: auto;
        }
        .product_h3 h3 {
            font-size:20px;
        }
        .product_h3 p{
            font-size:16px;
        }
        .part1_info p{
            font-size:14px;
        }
        .footersub1 a img{
            height: 60px;
            margin:20px 0 8px 0;
        }
        .footersub2{
            height: auto;
            display:flex;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding:0 0 20px 0;
        }

        .footersub2 ul li a {
            padding: 10px 15px;
        }
        .footersub hr{
            display: none;
        }
        .footersub2_icon {
            padding: 10px 0;
        }
        .footersub2_icon a{
            margin: 0px 15px 0px 15px;
        }

    }




    .hotline-phone-ring-wrap {

        z-index: 1000;
      }
    .hotline-phone-ring-wrap:hover .hotline-bar{
        transform: scale(1, 1);
        transition: transform 0.5s ease;
    }
      .hotline-phone-ring {
        position: relative;
        visibility: visible;
        background-color: transparent;
        width: 110px;
        height: 110px;
        cursor: pointer;
        z-index: 11;
        -webkit-backface-visibility: hidden;
        -webkit-transform: translateZ(0);
        transition: visibility .5s;
        left: 0;
        bottom: 0;
        display: block;
      }
      .hotline-phone-ring-circle {
        width: 85px;
        height: 85px;
        top: 10px;
        left: 10px;
        position: absolute;
        background-color: transparent;
        border-radius: 100%;
        border: 2px solid #e72b2b;
        -webkit-animation: phonering-alo-circle-anim 1.2s infinite ease-in-out;
        animation: phonering-alo-circle-anim 1.2s infinite ease-in-out;
        transition: all .5s;
        -webkit-transform-origin: 50% 50%;
        -ms-transform-origin: 50% 50%;
        transform-origin: 50% 50%;
        opacity: 0.5;
      }
      .hotline-phone-ring-circle-fill {
        width: 55px;
        height: 55px;
        top: 25px;
        left: 25px;
        position: absolute;
        background-color: rgba(230, 59, 59, 0.7);
        border-radius: 100%;
        border: 2px solid transparent;
        -webkit-animation: phonering-alo-circle-fill-anim 2.3s infinite ease-in-out;
        animation: phonering-alo-circle-fill-anim 2.3s infinite ease-in-out;
        transition: all .5s;
        -webkit-transform-origin: 50% 50%;
        -ms-transform-origin: 50% 50%;
        transform-origin: 50% 50%;
      }
      .hotline-phone-ring-img-circle {
        background-color: #e63434;
         width: 33px;
        height: 33px;
        top: 37px;
        left: 37px;
        position: absolute;
        background-size: 20px;
        border-radius: 100%;
        border: 2px solid transparent;
        -webkit-animation: phonering-alo-circle-img-anim 1s infinite ease-in-out;
        animation: phonering-alo-circle-img-anim 1s infinite ease-in-out;
        -webkit-transform-origin: 50% 50%;
        -ms-transform-origin: 50% 50%;
        transform-origin: 50% 50%;
        display: -webkit-box;
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .hotline-phone-ring-img-circle .pps-btn-img {
        display: -webkit-box;
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
      }
      .hotline-phone-ring-img-circle .pps-btn-img img {
          width: 20px;
          height: 20px;
      }
      .hotline-bar {
        position: absolute;
        background: #e03d3d;
        height: 40px;
        width: 180px;
        line-height: 40px;
        border-radius: 3px;
        padding: 0 10px;
        background-size: 100%;
        cursor: pointer;
        transition: all 0.8s;
        -webkit-transition: all 0.8s;
        z-index: 9;
        box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.1);
        border-radius: 50px !important;
        /* width: 175px !important; */
        right: 40px;
        bottom: 36px;
        transition: transform 0.5s ease;
        transform-origin: 100% 0%;
        transform: scale(0, 1);
      }
      .hotline-bar > a {
        color: #fff;
        text-decoration: none;
        font-size: 15px;
        font-weight: bold;
        text-indent: 5px;
        display: block;
        letter-spacing: 1px;
        line-height: 40px;
        font-family: Arial;
      }

      @-webkit-keyframes phonering-alo-circle-anim {
        0% {
          -webkit-transform: rotate(0) scale(0.5) skew(1deg);
          -webkit-opacity: 0.1;
        }
        30% {
          -webkit-transform: rotate(0) scale(0.7) skew(1deg);
          -webkit-opacity: 0.5;
        }
        100% {
          -webkit-transform: rotate(0) scale(1) skew(1deg);
          -webkit-opacity: 0.1;
        }
      }
      @-webkit-keyframes phonering-alo-circle-fill-anim {
        0% {
          -webkit-transform: rotate(0) scale(0.7) skew(1deg);
          opacity: 0.6;
        }
        50% {
          -webkit-transform: rotate(0) scale(1) skew(1deg);
          opacity: 0.6;
        }
        100% {
          -webkit-transform: rotate(0) scale(0.7) skew(1deg);
          opacity: 0.6;
        }
      }
      @-webkit-keyframes phonering-alo-circle-img-anim {
        0% {
          -webkit-transform: rotate(0) scale(1) skew(1deg);
        }
        10% {
          -webkit-transform: rotate(-25deg) scale(1) skew(1deg);
        }
        20% {
          -webkit-transform: rotate(25deg) scale(1) skew(1deg);
        }
        30% {
          -webkit-transform: rotate(-25deg) scale(1) skew(1deg);
        }
        40% {
          -webkit-transform: rotate(25deg) scale(1) skew(1deg);
        }
        50% {
          -webkit-transform: rotate(0) scale(1) skew(1deg);
        }
        100% {
          -webkit-transform: rotate(0) scale(1) skew(1deg);
        }
      }
      @media (max-width: 768px) {
        .hotline-bar {
          display: none;
        }
        .hotline-phone-ring-wrap {

          }
      }
      @media(min-width: 740px) and (max-width: 1024px){
        .hotline-phone-ring-wrap {

          }
      }