.pc_nav > ul > li:nth-of-type(1) > a {
    color: #37b296;
}
/* intro05_title */
.intro05_title {
    position: relative;
}
.intro05_title h2 {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    font-size: 60px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0px;
}
.intro05_menu {
    border-bottom: 1px solid #c3c3c3;
    display: flex;
    justify-content: center;
}
.intro05_menu a {
    font-size: 18px;
    font-weight: 400;
    color: #727272;
    padding: 0px 40px;
    display: inline-block;
    line-height: 70px;
    position: relative;
    transition: all 0.2s;
}
.intro05_menu a.active {
    font-weight: 700;
    color: #1d1919;
}
.intro05_menu a:hover {
    color: #1d1919;
    font-weight: 700;
}
.intro05_menu a.active:after {
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #1d1919;
    left: 0px;
    bottom: 0px;
}