@charset "utf-8";



.header {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f8f8;
    width: 100%;
}

.masked-bg {
    position: absolute;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    inset: 0;
    z-index: 2;
    transition: opacity 0.2s ease-out;
    --mask-size: 200px 200px;
    --green-opacity: 1;

    isolation: isolate; /* 关键
    强制 ::before 和 img 共享同一个渲染上下文
    mask 的缩放、对齐会 100% 同步
    这是解决你“缩放时绿色感觉没跟着走”的根本方案
    这行是专业级 fix，不是 hack。 */
}
.masked-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: #63b62f;

    /* 和图片使用同一个 mask */
    mask-image: url('../img/logo_2.svg');
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: var(--mask-size);

    -webkit-mask-image: url('../img/logo_2.svg');
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    -webkit-mask-size: var(--mask-size);

    opacity: var(--green-opacity);
    pointer-events: none;

    z-index: 2;
}
.masked-bg img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;

    mask-image: url('../img/logo_2.svg');
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: var(--mask-size);

    -webkit-mask-image: url('../img/logo_2.svg');
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    -webkit-mask-size: var(--mask-size);
}



.masked-bg .hero-text {
    position: absolute;
    inset: 0;
    z-index: 10;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    text-align: center;
    color: #fff;
    pointer-events: none;

    text-shadow: 3px 3px 8px rgba(0,0,0,0.35);

    opacity: 0;
    transform: translateY(18px);
    transition: opacity 1.2s ease, transform 1.2s ease;
}
.masked-bg .hero-text.show {
    opacity: 1;
    transform: translateY(0);
}

.masked-bg .hero-text h1 {
    font-size: 66px;
    font-family: "Times New Roman", serif;
    /* font-family: "Times New Roman", serif; */
    font-weight: 600;
    letter-spacing: 4px;
    margin: 0;
}
.mobile-break {
    display: none; /* 默认不显示 */
}

.masked-bg .hero-text p {
    margin-top: 18px;
    font-size: 24px;
    font-family: "Zen Old Mincho", serif;
    font-weight: 400;
    letter-spacing: 2px;
    opacity: 0.85;
    /* background: linear-gradient(transparent 50%, #63b62f 50%); */
}






.scroll-hint {
    position: absolute;
    left: 50%;
    bottom: 50px;
    transform: translateX(-50%);
    z-index: 5;
    opacity: 0;           /* 默认隐藏 */
    pointer-events: none; /* 不挡滚轮 */

    transition: opacity 0.6s ease;
}


/* 激活时才允许点击 */
.scroll-hint.active {
    pointer-events: auto;
}

.hint-inner {
    display: flex;
    height: 70px;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s ease;
}

/* 按钮 */
.hint-btn {
    width: 70px;
    /* height: 70px; */
    cursor: pointer;
    
}
.hint-btn .icon {
    width: 100%;
    height: 100%;
    fill: currentColor; /* 避免后面改色用两套颜色系统 */
    color: #fff;
}


/* 菜单 */
.hint-menu {
    display: flex;
    flex-wrap: nowrap;   /* 不换行 */
    gap: 24px;

    opacity: 0;
    transform: translateX(-20px);
    pointer-events: none;

    width: 0; /* 关键 */
    overflow: hidden; /* 关键 */

    transition: all 0.6s ease;
}

.scroll-hint.open .hint-menu {
    width: auto; /* 展开后恢复宽度 */
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;

    margin-left: 50px;

}

/* 菜单样式 */
.hint-menu a {
    position: relative;
    padding: 8px 16px;
    color: #fff;
    /* background: #63b62f; */
    /* border-radius: 20px; */
    font-size: 24px;
    font-family:'Times New Roman', Times, serif;
    font-weight: 500;
    transition: 0.3s;
}
.hint-menu a:hover {
    /* background: #4e9b22; */
    color: #63b62f;
    opacity: 0.7;
}
.hint-menu a:not(:first-child)::before {
    content: '';
    position: absolute;
    left: -13px;                /* 紧贴右边 */
    top: 50%;                /* 顶端到50% */
    transform: translateY(-50%); /* 向上移动自身高度的一半，居中 */
    height: 77%;            /* 竖线高度 */
    width: 1px;             /* 竖线宽度 */
    background-color: #fff; /* 竖线颜色 */
}


.logo_menu {
    display: none;
}






.about {
    max-width: 1200px;
    margin: 300px auto;
    font-size: 28px;
    font-family: "Zen Old Mincho", serif;
    font-weight: 900;
    color: #636363;
    line-height: 1.7;
    text-align: center;
}
.about h2 {
    font-size: 18px;
    font-weight: 500;
}



.tya_type {
    max-width: 1200px;
    margin: 50px auto 0;
}

.tya_type li {
    display: flex;
    padding: 30px 0;
}
.tya_type li .t_img{
    width: 300px;
    flex-shrink: 0;
}
.tya_type li .t_img img {
    width: 100%;
    height: auto;
}
.tya_type li .text {
    display: flex;
    flex-direction: column;
    color: #636363;
    font-family: "Zen Old Mincho", serif;
    margin: 15px 50px;
}
.tya_type li .text h1 {
    display: inline-block;
    align-self: flex-start;
    padding: 0 7px;
    font-size: 30px;
    letter-spacing: 7px;
    background: linear-gradient(transparent 50%, #d9ffc1 50%);
}
.tya_type li .text h2 {
    font-size: 18px;
    font-weight: 200;
    line-height: 1.8;
}
.tya_type li:nth-child(2n) {
    flex-direction: row-reverse;
}
.tya_type li:nth-child(2n) .text {
    text-align: right;
}
.tya_type li:nth-child(2n) .text h1 {
    align-self: flex-end;
}


.access {
    display: flex;
    justify-content: center;
    max-width: 1200px;  /* 内容最大宽度 */
    margin: 200px auto;      /* 左右自动居中 */
}
.access .acc_img img {
    width: 100%;
    max-width: 500px;
    min-width: 100px;
    height: auto;
}
.access dl {
    margin: auto;
    padding-left: 80px;
    align-items: center;
    min-width: 0;
    flex: 1;
}
.access dl .xian {
    display: grid;
    height: 70px;
    grid-template-columns: 120px minmax(0, 1fr);
    border-top: 1px solid #000;
}
.access dl .xian:last-child {
    border-bottom: 1px solid #000;
}
.access dl .xian dt {
    text-align: justify;
    text-align-last: justify;
    margin: auto 0;
    font-size: 18px;
    font-weight: 600;
}

.access dl .xian dd {
    margin: auto 0;
    padding-left: 40px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}



.map {
    max-width: 1200px; 
    margin: 100px auto;
}
.map iframe {
    display: block;
    margin: 0 auto;
    width: 100%;
    height: 600px;
}



.top {
    position: fixed;
    right: 20px;
    bottom: 3%;
    z-index: 3;
    width: 50px;
    height: 50px;
    background-color: #aaa;
    border-radius: 9%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
    cursor: pointer;
}
.top.show {
    opacity: 1;
    pointer-events: auto;
}
.top:hover {
    background-color: #c2c2c2;
}
.top:before {
    display: block;
    content: "❯❯";
    color: #fff;
    font-size: 150%;
    font-weight: 500;
    transform: rotate(-90deg);
    transition: transform 0.3s ease; 
}
.top:hover::before {
    transform: rotate(-90deg) translateX(3px);
}











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

    .scroll-hint {
        display: none !important;
    }
    .logo_menu {
        display: block;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.5s ease;

        -webkit-tap-highlight-color: transparent; /* Chrome, Safari */
        -webkit-touch-callout: none; /* iOS长按弹出菜单 */
    }

    .logo_menu.show {
        opacity: 1;
        pointer-events: auto;
    }

    .top {
        display: none !important;
    }

    

    .masked-bg img {
        object-position: 5% center;
    }

    .masked-bg .hero-text h1 {
        font-size: 36px;
        letter-spacing: 2px;
        line-height: 1.5;
        margin-bottom: 5px;
    }
    .mobile-break {
        display: block; /* 触发换行 */
    }

    .masked-bg .hero-text p {
        font-size: 18px;
        letter-spacing: 1px;
        margin-top: 12px;
        line-height: 2;
    }


    .about {
        margin: 260px auto;
    }
    .about h1 {
        font-size: 33px;
    }
    .about h2 {
        font-size: 16px;
    }



    .tya_type {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 0;
        -ms-overflow-style: none;     /* IE */
        scrollbar-width: none;        /* Firefox */
    }
    .tya_type::-webkit-scrollbar {
        display: none;                /* Chrome / Safari */
    }
    
    .tya_type li {
        flex: 0 0 100%;
        scroll-snap-align: center;
        display: flex;
        flex-direction: column;
        padding: 20px;
    }
    
    .tya_type li:nth-child(2n) {
        flex-direction: column; /* 取消左右交错 */
    }
    .tya_type li .t_img {
        width: 100%;
        
    }
    .tya_type li .t_img img {
        aspect-ratio: 1 / 1;   /* 宽高比 1:1 */
        object-fit: cover;     /* 保持图片裁剪填满，不变形 */
    }
    .tya_type li .text {
        margin: 25px 0 0 0;
    }
    .tya_type li:nth-child(2n) .text {
        text-align: left;
    }
    .tya_type li:nth-child(2n) .text h1 {
        align-self: flex-start;
    }
    .tya_type li .text h2 {
        font-size: 15px;
    }



    .tya_progress {
        width: 60%;
        height: 1px;
        background: rgba(0,0,0,0.15);
        margin: auto ;
        position: relative;
        overflow: hidden;
    }
    
    .tya_progress_inner {
        height: 100%;
        width: 15%;
        background: #63b62f;
        transform: translateX(0);
        transition: transform 0.15s ease-out;
        
    }



    .access {
        flex-direction: column;   /* 改成上下结构 */
        margin: 150px auto;
        padding: 0 20px;
        margin: 200px auto 0;      /* 左右自动居中 */

    }
    
    .access .acc_img {
        width: 100%;
    }
    
    .access .acc_img img {
        width: 100%;
        max-width: 100%;
        height: auto;
        display: block;
    }
    
    .access dl {
        flex: none;
        padding-left: 0;
        margin-top: 40px;
    }
    
    .access dl .xian {
        grid-template-columns: 75px 1fr;  /* 稍微缩小左列 */
        height: auto;
        padding: 14px 0;
    }
    
    .access dl .xian dt {
        font-size: 15px;
        text-align-last: justify;
    }
    
    .access dl .xian dd {
        font-size: 14px;
        padding-left: 30px;
    }
    


    .map {
        margin: 70px auto;
    }
    .map iframe {
        width: 100%;
        height: 300px;
    }


    


}