/* --- 下層ページ共通スタイル --- */
.contents-page {
    padding: 180px 40px 50px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 3rem;
    font-weight: 700; /* ★変更: 太字に */
    letter-spacing: 5px;
    text-align: center;
    margin-bottom: 60px;
    color: #ffffff;
    text-transform: uppercase;
    line-height: 1.3; /* ★追加: 行間を調整 */
}

.contents-section {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 8px;
}


/* --- Music Page: Album Layout --- */
.album-release {
    display: flex;
    gap: 50px;
}

.album-artwork {
    flex: 1;
    max-width: 450px;
}

.album-artwork img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.album-details {
    flex: 1.2;
}

.album-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 3rem;
    font-weight: 700; /* ★変更: 太字に */
    letter-spacing: 2px;
    background: linear-gradient(90deg, #00f2ff, #c18cff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
    line-height: 1.3; /* ★追加: 行間を調整 */
}

.release-info {
    font-size: 1.1rem;
    color: #a0a0b0;
    margin-bottom: 30px;
}

.track-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 40px;
}

.track-list li {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1.1rem;
    color: #e0e0e0;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    counter-increment: track-counter;
    display: flex;
    align-items: center;
}

.track-list li::before {
    content: counter(track-counter, decimal-leading-zero);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    color: #707080;
    margin-right: 20px;
    min-width: 25px;
    text-align: right;
}

.streaming-links p {
    font-weight: 600;
    color: #d0d0d0;
    margin-bottom: 15px;
}

.store-button {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-right: 15px;
    margin-bottom: 10px;
    border: 2px solid transparent;
}

.apple-music { background-color: #ffffff; color: #000000; }
.apple-music:hover { background-color: transparent; color: #ffffff; border-color: #ffffff; }

.youtube-music { background-color: #ff0000; color: #ffffff; }
.youtube-music:hover { background-color: transparent; color: #ff0000; border-color: #ff0000; }

.amazon-music { background-color: #00A8E1; color: #ffffff; }
.amazon-music:hover { background-color: transparent; color: #00A8E1; border-color: #00A8E1; }

.spotify { background-color: #1DB954; color: #ffffff; }
.spotify:hover { background-color: transparent; color: #1DB954; border-color: #1DB954; }

/* --- Music Page レスポンス対応 --- */
@media (max-width: 820px) {
    .contents-page {
        padding: 140px 20px 40px; /* 上部の余白を調整 */
    }
    .page-title {
        font-size: 2.2rem; /* タイトルサイズを調整 */
        margin-bottom: 40px;
    }
    .contents-section {
        padding: 25px; /* セクションの余白を調整 */
    }

    .album-release {
        flex-direction: column;
        gap: 30px;
    }
    .album-artwork {
        max-width: 100%;
    }
    .album-title {
        font-size: 2.5rem;
    }
    .track-list li {
        font-size: 1rem; /* トラックリストの文字サイズ調整 */
    }
}

/* --- Music Video Section --- */
#music-video {
    margin-top: 60px;
}

#music-video .section-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700; /* ★変更: 太字に */
    color: #ffffff;
    line-height: 1.3; /* ★追加: 行間を調整 */
}

.video-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.video-item iframe {
    width: 100%;
    height: 100%;
    aspect-ratio: 16 / 9;
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.youtube-channel-link {
    text-align: center;
}

.section-button {
    display: inline-block;
    padding: 12px 35px;
    border: 2px solid #00f2ff;
    border-radius: 50px;
    text-decoration: none;
    color: #00f2ff;
    font-weight: 600;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
}

.section-button:hover {
    background-color: #00f2ff;
    color: #0a0a14;
    box-shadow: 0 0 20px #00f2ff;
}

@media (max-width: 820px) {
    #music-video .section-title {
        font-size: 2rem; /* MVセクションタイトルの調整 */
    }
    .video-container {
        gap: 20px;
    }
}
/* --- 下層ページ共通スタイル --- */
.page-description {
    text-align: center;
    color: #c0c0d0;
    max-width: 800px;
    margin: -30px auto 50px;
    line-height: 1.8;
}

.section-description {
    text-align: center;
    color: #c0c0d0;
    max-width: 700px;
    margin: -20px auto 30px;
    line-height: 1.7;
}

/* --- Music Page: Album Layout --- */
.album-concept {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1rem;
    color: #e0e0e0;
    line-height: 1.8;
    margin-bottom: 30px;
    background-color: rgba(0,0,0,0.2);
    padding: 15px;
    border-radius: 4px;
    border-left: 2px solid #00f2ff;
}