.visual{
    background: url(../images/sub4_1/sub4_visual.jpg) no-repeat center center;
    width:100%; height:200px;
    background-size:cover;
    position: relative;
}
.visual span{
    display: block;
    font-size: 1.5rem;
    color: #fff;
    text-align: center;
    width: 100%;
    position: absolute;
    left: 0;
    top: 50%;
}
.sub_nav{
    width: 100%;
    border-bottom: 1px solid #c1c1c1;
}
.sub_nav ul{
    display: flex;
    width: 100%;
    margin: 0 auto;
    text-align: center;
}
.sub_nav ul li{
    width: 50%;
}
.sub_nav ul li a{
    padding: 10px 0;
    font-weight: 500;
}
.sub_nav li .current{
    background: var(--font-color-point2);
    color: #fff;
    font-weight: 600;
}
#content .title_area h2{
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin: 100px 0 80px;
    position: relative;
}
#content .title_area h2::before{
content: ''; width: 12px; height: 12px; background: var(--font-color-point2);
position: absolute; transform: rotate(45deg); border-radius: 2px; 
top: -27px; left: 50%; margin-left: -6px;
}
#content .title_area h2::after{
content: ''; width: 12px; height: 12px; background: var(--font-color-point2);
position: absolute; transform: rotate(45deg); border-radius: 2px; 
bottom: -34px; left: 50%; margin-left: -6px;
}

.tec{
    text-align: center;
    margin: 0 20px;
}
.tec h3{
    font-size: 1.5rem;
    font-weight: 700;
    padding: 10px 0;
    margin-bottom: 20px;
    background: var(--font-color-sub);
    color: #fff;
    border-radius: 30px;
    box-shadow: inset 1px 1px 5px rgba(255, 255, 255, 0.2);
}
.tec>dl{
    margin-bottom: 50px;
    word-break: keep-all;
}
.tec>dl dt{
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.tec>dl dd{
    padding-bottom: 5px;
}
.tec>dl dd span{font-weight: 600; color: var(--font-color-point2);}
.sub6_cont3Tec img{
    width: 90%;
    height: auto;
}
.sub6_cont3Tec{
   position: relative;
}

.sub6_cont3Tec dl{width: 65%;
    position: absolute; top: 50%; left: 50%; 
    padding: 15px;
    background: rgba(182, 182, 182, 0.2); color: var(--font-color2);
    box-shadow: inset 1px 1px 5px #d8d8d8;
    border-radius: 15px;
    backdrop-filter: blur(3px);
}
.sub6_cont3Tec dl:nth-of-type(odd){left: 29%;}
.sub6_cont3Tec dl:nth-of-type(even){left: -2%;}
.sub6_cont3Tec dl:nth-of-type(1){top: 19%;}
.sub6_cont3Tec dl:nth-of-type(2){top: 33.5%;}
.sub6_cont3Tec dl:nth-of-type(3){top: 50%;}
.sub6_cont3Tec dl:nth-of-type(4){top: 64.5%;}
.sub6_cont3Tec dl:nth-of-type(5){top: 81%;}

.sub6_cont3Tec dt{
    font-size: 1.1rem;
    font-weight: 700;
    padding-bottom: 10px;
}
.sub6_cont3Tec dd{
    word-break: keep-all;
    font-weight: 500;
}