@charset "utf-8";

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-size: 100%;
    overflow-x: hidden;
}
body {
    color: #121212;
    background-color: #f8f8f8;
    font-family: 'YuGothic', 'Yu Gothic', sans-serif;
}
img {
    max-width: 100%;
    vertical-align: bottom;
}
li {
    list-style: none;
}
a {
    color: #121212;
    text-decoration: none;
    transition: all 0.3s ease;
}
a:hover {
    opacity: 0.7;
}



main {
    max-width: 1200px;  /* 内容最大宽度 */
    margin: 0 auto;      /* 左右自动居中 */
    padding: 0 20px;     /* 可选，防止小屏幕挤边 */
}



header .title {
    /* position: relative; */
    margin: 100px auto 150px;
    text-align: center;
}
header .title h1 {
    font-family: 'Times New Roman', Times, serif;
    font-size: 36px;
    font-weight: 700;
    /* color: #63b62f; */
    color: #777;
}
header .title h1::after {
    content: "";
    display: block;
    width: 50px;
    height: 3px;
    background-color: #63b62f;
    margin: 13px auto 0;
}



.logo_menu {
    width: 70px;
    height: auto;

    position: fixed;      /* 固定在视口 */
    left: 30px;           /* 距离屏幕左边 */
    top: 10%;             /* 垂直位置 */
    transform: translateY(-50%);    /* 精确垂直居中 */
    z-index: 50;        /* 保证在最上层 */
    cursor: pointer;    /* 把鼠标变成“小手” */
}
.logo_menu svg path {
    fill: #63b62f;
}
.logo_menu .logo_menu_list {
    position: absolute;      /* 关键：让菜单脱离文档流 */
    top: 80px;               /* 在图标下方 */
    left: 0;

    min-width: 130px;
    padding: 16px 0;
    margin: 0;
}
.logo_menu .logo_menu_list li {
    opacity: 0;
    transform: translateX(-20px);
    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
    margin-bottom: 12px;
    pointer-events: none;
    white-space: nowrap;   /* 防止文字换行 */

    background-color: rgba(99, 182, 47, 0.86);
    backdrop-filter: blur(10px);    /* 毛玻璃感 */
    border-radius: 30px;
    box-shadow: 2px 3px 9px rgba(0,0,0,0.2);
}
.logo_menu.open .logo_menu_list li {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}
.logo_menu .logo_menu_list li:last-child {
    margin-bottom: 0;
}
.logo_menu .logo_menu_list li:nth-child(1) { transition-delay: 0.0s; }
.logo_menu .logo_menu_list li:nth-child(2) { transition-delay: 0.1s; }
.logo_menu .logo_menu_list li:nth-child(3) { transition-delay: 0.2s; }
.logo_menu .logo_menu_list li:nth-child(4) { transition-delay: 0.3s; }
.logo_menu .logo_menu_list li:nth-child(5) { transition-delay: 0.4s; }
.logo_menu .logo_menu_list a {
    color: #fff;
    font-size: 15px;
    /* font-weight: 500; */
    font-family:'Times New Roman', Times, serif;
    letter-spacing: 2px;
    display: block;
    text-align: center;
    padding-top: 3px;
    padding-bottom: 3px;
}






footer {
    width: 100%;
}
footer .text {
    height: 50px;
    background-color: #aaa;
    text-align: center;
    line-height: 50px;
}
footer .text p {
    font-size: 13px;
    color: #fff;
}






/*------------------------------
スマートフォン 
------------------------------*/
@media screen and (max-width: 767px) {

    main {
        padding: 0 30px;     /* 可选，防止小屏幕挤边 */
    }
    
    .logo_menu {
        width: 55px;
        left: 24px;
        top: 7%; 
    }

    .logo_menu .logo_menu_list {
        top: 60px;               /* 在图标下方 */
        left: 0;
    
        min-width: 90px;
        padding: 16px 0;
        margin: 0;
    }
    .logo_menu .logo_menu_list li {
        box-shadow: 1px 2px 6px rgba(0,0,0,0.2);
    }
    .logo_menu .logo_menu_list a {
        font-size: 12px;
        letter-spacing: 1px;
    }


    header .title {
        margin: 70px auto;
    }
    header .title h1 {
        font-size: 30px;
        font-weight: 700;
    }



    footer .text {
        height: 36px;
        line-height: 36px;
    }



 
}