header {
    display: flex;
    padding: 1.5rem 0;
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1000;
    transition: 0.5s;
    font-family: "Zen Old Mincho", serif;
}

.hamburger {
    display: none;
}

.header.scrolled1 {
    background-color: #234E45;
}

.header.top {
    background-color: transparent;
}

.header.top.scrolled2 {
    background-color: #234E45;
}


.title_logo {
    font-size: 1.7rem;
    margin-left: 1.5rem;
    color: transparent;
    background: linear-gradient(to right, #ECB687 50%, #ffffff 50%) 100%;
    background-clip: text;
    background-size: 200% 100%;
    transition: background-position 0.3s;
}

.title_logo:hover {
    background-position: 0 100%;
}

.title_logo span {
    font-size: 2.8rem;
}

.header_nav {
    font-size: 1.7rem;
    padding-top: 1.1rem;
    margin-left: 31.9rem;
    display: flex;
    gap: 2rem;
}

.header_nav a {
    color: transparent;
    background: linear-gradient(to right, #ECB687 50%, #ffffff 50%) 100%;
    background-clip: text;
    background-size: 200% 100%;
    transition: background-position 0.3s;
}

.header_nav a:hover {
    background-position: 0 100%;
}
.hamburger_nav{
    display: none;
}

@media screen and (max-width: 699.98px) {
    header {
        padding-top: 1rem;
    }

    .header_nav {
        display: none;
    }

    .hamburger {
        display: block;
    }
    .title_logo{
        font-size: 1.5rem;
        margin-left: 1.3rem;
    }
    .title_logo span{
        font-size: 2.6rem;
    }

    .hamburger span {
        /*3本の線を作る*/
        transition: all 1s;
        position: absolute;
        height: 0.1rem;
        background-color: #ffffff;
        width: 4rem;
        right: 1.5rem;
        z-index: 1001;
    }

    .hamburger span:nth-of-type(1) {
        /*上の線の位置*/
        top: 2.3rem;
    }

    .hamburger span:nth-of-type(2) {
        /*真ん中の線の位置*/
        top: 3.5rem;
    }

    .hamburger span:nth-of-type(3) {
        /*下の線の位置*/
        top: 4.5rem;
    }

    .hamburger_close span:nth-of-type(1) {
        /*openのとき、上の線を右斜めにする*/
        top: 5.6rem;
        transform: translateY(0.6rem) rotate(-29deg);
    }

    .hamburger_close span:nth-of-type(2) {
        /*下の線を左斜めにする*/
        top: 6.8rem;
        transform: translateY(-0.6rem) rotate(29deg);
    }

    .hamburger_close span {
        transition: all 1s;
        position: absolute;
        height: 0.1rem;
        background-color: #234E45;
        width: 4rem;
        right: 1.5rem;
        z-index: 1001;
    }



    .hamburger_nav {
        display: none;
        height: 100vh;
        width: 100%;
        background-color: #FAF9F6;
        position: fixed;
        z-index: 1000;
        font-family: "Zen Old Mincho", serif;
        font-size: 1.5rem;
        color: #234E45;
        overflow: scroll;
    }

    .ham_link {
        display: flex;
        padding-top: 11rem;
        margin-left: 3.5rem;
        flex-flow: column;
        gap: 1.4rem;
    }

    .ham_button {
        display: flex;
        flex-flow: column;
        margin-left: 3.5rem;
        margin-top: 2.1rem;
        text-align: center;
        gap: 1rem;
    }
    .ham_button a{
        padding-top: 2rem;
        padding-bottom: 2rem;
        width: 30.5rem;
    }
    .ham_soeda{
        border: 0.1rem solid #55C687;
        background-color: #F5FFF2;
        box-shadow: 0rem 0.3rem 0.6rem #00000029;
    }
    .ham_tenjuen{
        border: 0.1rem solid #3397BC;
        background-color: #DBEEF7;
        box-shadow: 0rem 0.3rem 0.6rem #00000029;
    }
    .ham_tenjusato{
        border: 0.1rem solid #BC3361;
        background-color: #FFF3FB;
        box-shadow: 0rem 0.3rem 0.6rem #00000029;
    }
    .menu-open{
        overflow: hidden;
    }
    .ham_img{
        display: flex;
        margin-top: 11.7rem;
        margin-bottom: 1.9rem;
    }
    .ham_teng{
        width: 18.2rem;
        margin-left: 8.9rem;
    }
    .ham_okami{
        width: 11.1rem;
        margin-left: -2rem;
    }
}