body {
    font-family: "Noto Sans JP", sans-serif;
    background-image: url('https://soverth.blue/images/background.webp');
    background-position: center top;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: scroll; 
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

header {
    color: #ffffff;
    background-color: #181619;
}

header .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    margin: 0 auto;
    max-width: 1280px;
    padding: 20px 0;
}

header .logo {
    font-size: 24px;
    font-weight: 700;
}

header nav ul {
    display: flex;
}

header nav ul li {
    margin-left: 50px;
}

.mv {
    background-size: cover;
}

.mv .container {
    margin: 0 auto;
    max-width: 1280px;
    height: 976px;
    position: relative;
}

.mv .title {
    position: absolute;
    bottom: 400px;
    left: 0;
    transform: translate(0px, 0px);
}

.mv a {
    display: flex;
    flex-direction: column;
    margin-top: 1rem;
    font-size: 32px;
    font-weight: 900;
    color: #70c4ff;
    margin-bottom: 10px;
    transform: translate(0px, 218px);
    max-width: 500px; /* pxを追加 */
    width: 400px;     /* pxを追加 */
}

.mv h1 {
    font-size: 70px;
    font-weight: 900;
    color: #70c4ff;
    margin-bottom: 10px;
    transform: translate(0px, 550px);
}

.mv .about {
    font-size: 20px;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 20px;
}

.mv .info {
    display: flex;
    flex-direction: column;
    margin-top: 1rem;
    font-size: 15px;
    font-weight: 900;
    color: #70c4ff;
    margin-bottom: 10px;
    transform: translate(0px, 270px);
}

.title-links {
    position: absolute;
    bottom: -10px;
    left: 0px;
    transform: translate(0px, 0px);
}

.mv del {
    color: #70c4ff;
}