body{
    background: rgb(252, 240, 174);
    margin: 0;
    font-family: serif;
}

/* ヘッダー */
header{
    height: 150px;
    width: 95%;
    background: rgb(255, 187, 99);
    border-radius: 20px;
    border: 3px solid rgb(102, 0, 116);
    margin: auto;
    margin-top: 10px;
    text-align: center;
}

header > h1 > p{
    font-size: 45px;
    font-weight: bold;
}

/* ボタン */
.btn{
    padding-top: 20px;
    padding-bottom: 20px;
    text-align: center;
    border-bottom: 3px solid;
}

.btn > button {
    width: 150px;
    height: 50px;
    margin: 0 20px; /*ボタンを等間隔に配置*/
    font-size: 18px;
    border-radius: 10px;
    background-color: rgb(140, 213, 255);
    cursor: pointer;
}

.btn > button:hover{
    background-color: rgb(204, 236, 255);
}

#notbtn{
    background-color: rgb(204, 236, 255);
    cursor: initial;
}

/* 本文 */
#pagetop{
    text-align: center;
    font-size: 60px;
    color: yellow;
    -webkit-text-stroke: 1px black;
}

.summary{
    width: 50%;
    background: white;
    padding-bottom: 30px;
    margin: auto;
}

img{
    width: 100%;
}

.sumprofile{
    padding-left: 5%;
    padding-right: 5%;
}

.sumprofile > h1{
    font-size: 30px;
    border-left: solid 6px rgb(255, 208, 0);
    margin-right: 5px;
}

.sumprofile > p{
    font-size: 20px;
    padding-left: 5%;
    line-height: 15px;
}

/* ページトップボタンスタイル */
#page_top:hover {
    background: rgba(0, 0, 0, 0.8);
    color: rgb(255, 255, 255, 0.8);
}

#page_top {
    width: 50px;
    height: 50px;
    position: fixed;
    right: 10px;
    bottom: 10px;
    background: #0f0e0d;
    color: #fff;
    border-radius: 50%;
    text-align: center;
    font-weight: bold;
    padding: 0.7em;
    transition: 0.3s0;
    opacity: 0.6;
    display: none;
    animation: late-open 0.5s ease-in 1s forwards;
}

#page_top::before {
    content: "TOP";
    font-size: 20px;
    color: rgb(255, 255, 255);
    position: absolute;
    width: 48px;
    height: 65px;
    top: 100;
    right: 0;
    left: 0;
    margin: auto;
    text-align: center;
}

/* フッター */
footer {
    margin-top: 100px;
    height: 150px;
    background: rgb(255, 208, 0);
    width: 100%;
    text-align: center;
}

footer>p {
    color: gray;
    padding-top: 50px;
}

.footer-menu {
    padding-left: 30px;
    padding-top: 5px;
    list-style: none;
}

.footer-menu > li {
    display: inline-block;
    margin-top: 10px;
    margin-left: 20px;
}

.footer-menu>li>a {
    text-decoration: none;
    color: #000;
    font-weight: 800;
    font-size: 18px;
}

.footer-menu>li>a:hover {
    opacity: 0.3;
}