body{
    padding: 0;
    margin: 0;
    font-family: source-han-sans-japanese, sans-serif;
    font-weight: 300;
    font-style: normal;
    z-index: 1;
}
/*fonts*/
/*nav*/
nav{
    position:fixed;
    background-color: rgba(255, 255, 255, 0.459);
    padding: 0 2000px 0 10px;
    z-index: 10;
    display: flex;
    justify-content: flex-end;
}
.nav-content{
    width: 100%;
    margin: 0 10px 0 10px;
    text-decoration: none;
    color: #000;
    font-family: source-han-sans-japanese, sans-serif;
    font-weight: 300;
    font-style: normal;
    font-size: 20px;
}
#phone-nav{
    display: none;
}


/*共通*/
.link-btn-black{
    border-radius: 30px;
    background-color: rgb(35, 35, 35);
    color:#fff;
    padding: 10px 20px 10px 20px;
    text-decoration: none;    
    margin: 10px;
}
.link-btn-black:hover{
    animation:button_black_hover  forwards 0.5s;
}
@keyframes button_black_hover{
    from{
        background-color: rgb(35,35,35,);
        color: #fff;
    }
    to{
        background-color: rgb(246, 246, 246);
        color:#000;
        border: 1px #000 solid;
    }
}

.link-btn-white{
    border-radius: 30px;
    background-color: rgb(255, 255, 255);
    color:rgb(0, 0, 0);
    padding: 10px 20px 10px 20px;
    text-decoration: none;    
    margin: 10px;
}
.link-btn-white:hover{
    animation:button_white_hover  forwards 0.5s;
}
@keyframes button_white_hover{
    from{
        background-color: rgb(255, 255, 255);
        color: rgb(0, 0, 0);
    }
    to{
        background-color: rgb(0, 0, 0);
        color:rgb(255, 255, 255);
        border: 1px rgb(255, 255, 255) solid;
    }
}
#page-top{
    height: 600px;
    display: flex;
    justify-content: center;
    align-content: center;
    align-items: center;
    background-size: cover;
    background-position: center;
    flex-direction: column
}
#page-top.morning{
    background-image: url(img/chiba-Mt._Fuji_and_Tokyo_Skytree\,_View_from_I-link_Town_Observatory-l.webp);
}
#page-top.afternoon{
    background-image: url(img/chiba-Japanese_Symbol-l.webp);
}
#page-top-logo{
    width: 25%;
    height: 25%;
    top: 50%;
    fill: #fff;
}
#image-copylight{
    position: relative;
    font-size: 12px;
    color: #fff;
    top: 200px;
}
/*alphamirai説明*/
#explanation{
    display: flex;
    flex-direction: row;
    margin:70px ;
    margin-top: 250px;
    margin-bottom: 250px;
}
#explanation-title{
    width: 50%;
    font-size: 30px;
}
#explanation-text{
    margin-top: 200px;
    width: 50%;
    font-size: 20px;
}
/*news*/
#news{
   
    padding: 10px;
    margin: 0px 50px 200px 50px;
}
#news-title{
    font-family: good-times, sans-serif;
    font-weight: 500;
    font-style: normal;
    font-size: 40px;
}
#news-panel-body{
    display: flex;
    justify-content: center;
}
.news-panel{
    height: 50px;
    width: 100%;
}
/*作品紹介*/
#works{
    background-color: rgb(238, 238, 238);
    padding: 200px 50px 200px 50px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap
}
#works-title{
    font-size: 30px;
    margin: 0px 70px 0px 70px;
}
.works-panel{
    width: 320px;
    height: 400px;
    background-size: cover;
    background-position: center;
    margin: 20px;
    font-family: good-times, sans-serif;
    font-weight: 500;
    font-style: normal;
    font-size: 30px;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}
/*contact*/
#contact{
    margin: 40px;
    background-color: #000;
    color: #fff;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-evenly;
}
/*media*/
#media{
    display: flex;
    justify-content: center;
    flex-direction: row;
    background-color: #000;
    color: #fff;
    padding: 70px;

}
#media-logo{
    fill: white;
    width: 150px;
}
@media screen and ( max-width:479px ){
    nav{
        height: 100%;
        display: flex;
        justify-content: flex-start;
        flex-direction: column;
        background-color: #fff;
    }
    .nav-hide{
        display: none;
    }
    #phone-nav{

        
        display: flex;
        justify-content: center;
        align-items: center;
        position: fixed;
        width: 70px;
        height: 70px;
        background-color: rgba(255, 255, 255, 0.479);
        border-radius: 50%;
        top: 80%;
        right: 5%;

    }
    #phone-nav:active{
        opacity: 0.8;
    }
    #phone-navmenu{
        
        animation:opacity forwards 1s ;
        height: 100%;
        width: 100%;
        background-color: #fff;
        display: flex;
        flex-direction: column;
        position:fixed;
    }


    .phone-nav-hr{
        width: 100px;
        height: 1px;
        background-color: #000;
    }
    #list-image{
        width: 80%;
    }
    #page-top {
        height: 700px;
        display: flex;
        justify-content: center;
        align-content: center;
        align-items: center;
        background-size: cover;
        background-position: center;
        flex-direction: column;
    }
    #explanation{
        display: flex;
        flex-direction: column;
        margin:70px ;
        margin-top: 250px;
        margin-bottom: 250px;
    }
    #explanation-title{
        width: 100%;
        font-size: 20px;
    }
    #explanation-text{
        margin-top: 20px;
        width: 100%;
        font-size: 18px;
    }
    /*works*/
    #works {
        background-color: rgb(238, 238, 238);
        padding: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    /*media*/
    #media{
        display: flex;
        justify-content: center;
        flex-direction: column;
        align-items: center;
        background-color: #000;
        color: #fff;
        padding: 20px;
    
    }
    /*contact*/
    #contact{
        margin: 40px;
        background-color: #000;
        color: #fff;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-evenly;
    }
}
@keyframes onPhoneNav {
    from{
        opacity: 0;
    }
    to{
        opacity: 1;
    }
}