html, body {
        margin: 0;
        padding: 0;
        overflow-x: hidden; 
        width: 100%;
    }

    header, .main, footer {
        max-width: 100%;
        overflow: hidden;
    }


    img {
        max-width: 100%;
        height: auto;
    }


    .footer-container {
        padding-left: 20px; 
        width: calc(100% - 40px); 
    }

        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            line-height: 1.6;
        }
        header {
            background-color: rgba(255, 255, 255, 0.8);
            color: #000;
            padding: 15px 20px;
            text-align: center;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        nav ul {
            list-style-type: none;
            padding: 0;
            margin: 0;
        }
        nav ul li {
            display: inline;
            margin-right: 20px;
        }
        nav ul li a {
            color: black;
            text-decoration: none;
            font-weight: bold;
            cursor: pointer;
        }
        nav ul li a:hover {
            text-decoration: underline;
        }
        .head-img {
            width: 150px; /* ロゴの幅を調整 */
            height: auto;
        }
        .main {
            padding: 100px 20px 20px; /* ヘッダーの高さを考慮してパディングを調整 */
            background-color: #f9f9f9;
        }
        footer {
            background-color: #333;
            color: #fff;
        text-align: left;
        padding: 20px;
        width: 100%;
        position: relative;
        }

        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: flex-start;
            padding-left: 30px; /* 左側に余白を追加 */
        }

        #foot-img {
            width: 200px;
            margin-bottom: 10px;
        }

        .footer-nav {
            display: flex;
            flex-direction: column;
            gap: 5px;
            margin-bottom: 10px;
        }

        .footer-nav a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            display: block;
            padding-left: 30px; /* 各リンクにも少し余白を */
        }

        .footer-nav a:hover {
            text-decoration: underline;
            color: #fff;
        }

        .footer-text {
            color: #808080;
            font-size: 12px;
            padding-left: 30px; /* 余白を統一 */

        }

        .top {
            position: relative;
            text-align: center;
            margin-top: 60px; /* ヘッダーが固定されるためのマージンを追加 */
        }
        #img-list{
            font-size: 25px;
            color: #808080;
        }
        .section {
            margin-bottom: 40px;
            padding: 20px;
            background-color: #fff;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
        }
        .section h2 {
            margin-top: 0;
            color: #333;
        }
        .section p {
            color: #666;
            margin-bottom: 10px;
        }
        .section ul {
            padding-left: 20px;
        }
        .section ul li {
            margin-bottom: 10px;
            color: #666;
        }

        /*.siteを書き換える*/
    .home{
    opacity: 0; 
    transform: translateY(100px); 
    transition: opacity 0.5s, transform 0.5s; 
    }
    .about{
    opacity: 0; 
    transform: translateY(100px); 
    transition: opacity 0.5s, transform 0.5s; 
    }
    .services{
    opacity: 0; 
    transform: translateY(100px); 
    transition: opacity 0.5s, transform 0.5s; 
    }
    .link{
    opacity: 0; 
    transform: translateY(100px); 
    transition: opacity 0.5s, transform 0.5s; 
    }
    .div{
    opacity: 0; 
    transform: translateY(100px); 
    transition: opacity 0.5s, transform 0.5s; 
    }
        .mem,.about,.screenshots-section {
            padding: 60px 20px;
            text-align: center;
        }

    .mem,.about,.screenshots-section h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }
        .screenshots-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .screenshots-grid img {
            width: 100%;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        .mem-grid {
            display: flex;
            flex-wrap: nowrap;
            overflow-x: auto;
            gap: 20px;
            width: 100%;
            padding: 10px 0;
        }

.mem-item {
    flex: 0 0 calc((100% - 80px) / 5); /* 5人＋gap考慮 */
    text-align: center;
    scroll-snap-align: start;
}
.mem-grid::-webkit-scrollbar {
    display: none;
}
.mem-grid {
    -ms-overflow-style: none; /* IE */
    scrollbar-width: none; /* Firefox */
}
        /*"e-block"は消さないで*/
        e-block

        /*視覚情報のカスタマイズ*/
        .section-title {
            font-size: 36px;
            font-weight: bold;
            text-align: center;
            color: #222;
            margin-bottom: 20px;
            padding-bottom: 10px;
            display: inline-block;
            position: relative;
        }


        .section-title::after {
            content: "";
            display: block;
            width: 85px;
            height: 5px;
            margin: 8px auto 0;
            background: linear-gradient(90deg, #ff6ec7, #7b68ee, #00c3ff);
            border-radius: 2px;
        }
        .mem-grid img:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
        }
        .mem-grid img {
            width: 150px;
            height: auto;
            border-radius: 50%;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .mem-img{
            margin-top: 20px;
            margin-bottom: 10px;
        }
        
        /*セクションタイトル追加*/

       /* セクションタイトル */
        .section-title {
            font-size: 36px;
            font-weight: 600;
            text-align: center;
            position: relative;
            color: black; /* 文字色を黒に設定 */
            margin-bottom: 20px;
        }

        /* 下線エフェクト（最初は非表示） */
        .section-title::after {
            content: "";
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(135deg, #ff6ec7, #7b68ee, #00c3ff); /* グラデーション */
            margin: 10px auto 0;
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0);
            transition: opacity 0.5s ease-out, transform 0.5s ease-out;
        }

        /* スクロールで下線エフェクトを表示 */
        .section-title.show::after {
            transform: scaleX(1);
            opacity: 1;
        }
        /*btnクラス*/
        .btn {
            background-color: #007bff;
            color: white;
            padding: 15px 30px;
            text-decoration: none;
            border-radius: 5px;
            transition: background-color 0.3s ease;
        }

        .btn:hover {
            background-color: #0056b3;
        }
        .screenshots-grid img, 
.mem-grid img {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.screenshots-grid img:hover, 
.mem-grid img:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.contact-box {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    padding: 40px 30px;
    max-width: 600px;
    width: 100%;
    text-align: center;
    transition: box-shadow 0.3s ease;
    margin-left: 23%;
}

.contact-box:hover {
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.contact-box h3 {
    color: #333;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: normal;
}

.contact-box a {
    color: #007bff;
    text-decoration: none;
}

.contact-box a:hover {
    text-decoration: underline;
    color: #0056b3;
}
    .news-section {
    display: flex;
    justify-content: center; /* 横方向中央 */
    flex-wrap: wrap;         /* 複数行対応（必要なら） */
    gap: 20px;               /* アイテム間の隙間 */
    }
    .news-section h2 {
        font-size: 36px;
        margin-bottom: 20px;
        margin-top: 100px;
    }
    .news-item-wrapper {
        width: 100%;
        max-width: 380px;
        background: #ffffff;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease-in-out;
    }
    .news-item-wrapper:hover {
        transform: translateY(-5px);
    }
    .news-item {
        display: block;
        text-decoration: none;
        color: #000;
    }
    .news-item img {
    width: 100%;
    aspect-ratio: 16 / 9; /* アスペクト比を16:9に固定 */
    object-fit: cover;    /* はみ出る部分をトリミング */
    display: block;
    }
    .news-content {
        padding: 15px;
        text-align: left;
    }
    .news-date {
        display: block;
        font-size: 14px;
        color: #666;
        margin-bottom: 5px;
    }
    .news-content h3 {
        font-size: 20px;
        margin: 0;
    }
@media screen and (max-width: 768px) {

/* 基本フォントサイズ調整 */
body {
    font-size: 14px;
    line-height: 1.8;
}

header {
    padding: 10px 10px;
}

.head-img {
    width: 120px;
}

nav ul li {
    display: block;
    margin: 10px 0;
    text-align: center;
}

nav ul li a {
    font-size: 16px;
}

.section-title {
    font-size: 24px;
    margin-bottom: 15px;
}

h3 {
    font-size: 16px;
}

.btn {
    font-size: 14px;
    padding: 12px 24px;
}

.screenshots-grid {
    grid-template-columns: 1fr;
}

.mem-grid {
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.mem-grid img {
    width: 120px;
}

.contact-box {
    padding: 20px;
    margin-left: auto;
    margin-right: auto;
}

.footer-nav a {
    padding-left: 10px;
    font-size: 12px;
}

.footer-text {
    font-size: 10px;
}

#img-list {
    font-size: 20px;
}

.top-img {
    width: 100%;
}
header {
        padding: 10px;
        text-align: center;
    }

    .header {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .head-img {
        width: 120px;
        height: auto;
        margin-bottom: 10px;
    }

    nav ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        padding: 0;
    }

    nav ul li {
        display: inline-block;
        margin: 5px 8px;
    }

    nav ul li a {
        font-size: 14px;
        padding: 4px 8px;
    }
    .header-spacer {
    height: 80px;
}

}