* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: #000;
    overflow-x: hidden;
}

.lp-container {
    width: 100%;
}

.section {
    width: 100%;
    position: relative;
}

.section img {
    width: 100%;
    height: auto;
    display: block;
}

.logo-section {
    position: fixed;
    top: 30px;
    left: 30px;
    z-index: 100;
}

.logo-section img {
    width: 120px;
    height: auto;
    border-radius: 10px;
}

.footer {
    text-align: center;
    padding: 20px;
}

.footer img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

@media (min-width: 769px) {
    .section img {
        max-width: 1200px;
        /* 横幅制限 */
        width: 100%;
        /* 画面が狭いときは縮む */
        margin: 0 auto;
        /* 中央寄せ */
        display: block;
    }
    .logo-section {
        top: 20px;
        left: 20px;
    }
    .logo-section img {
        width: 80px;
    }
    .footer img {
        width: 100%;
    }
}