.backbutton {
    margin: 80px;
    margin-top: 140px;
}

.sheetimage {
    width: 100%;
    object-fit: cover;
    filter: invert(1);
}

.sheet_song {
    max-width: 56%;
    min-width: 300px;
    margin: 80px;
    margin-top: 0;
}

.sheet_body {
    display: flex;
}

.download_button {
    display: flex;
}

.comment_title {
    padding-bottom: 50px;
}

.download_button1 {
    background-color: #ff8200;
    color: black;
    border: 1px solid black;
    border-radius: 20px;
    padding: 10px;
    padding-left: 30px;
    padding-right: 30px;
    margin-right: 20px;
    font-weight: bold;
}

.pdf {
    margin-top: 30px;
}

.pdf div {
    margin-top: 15px;
}

.rate_star {
    font-weight: bold;
    font-size: 30px;
}

.reviews {
    margin-top: 60px;
    margin-bottom: 30px;
}

.comment_side {
    margin-right: 80px;
    max-width: 30%;
}

.review {
    display: flex;
    flex-direction: column;
}

.review_body {
    display: flex;
}

.member_image img {
    width: 40px;
}

.song_imagetext {
    display: flex;
}

.song_play {
    background-color: white;
    max-width: 450px;
    padding: 25px;
    border-radius: 20px;
    color: black;
}

.song_details {
    text-align: center;
    margin: 20px;
}

.song_image img {
    max-width: 150px;
    max-height: 150px;
}

.play_section {
    display: flex;
}

.play_button img,
.pause_button img {
    width: 35px;
}

.pause_button {
    display: none;
}

#progress {
    -webkit-appearance: none;
    width: 100%;
    height: 5px;
    background: black;
    border-radius: 5px;
    outline: none;
    cursor: pointer;
}

#progress::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background: black;
    border-radius: 50%;
    cursor: pointer;
}

.progress_section {
    padding-left: 12px;
    margin-top: 4px;
    width: 75%;
}

.backbutton img {
    width: 30px;
}

.song_title {
    padding-left: 25px;
    color: #ff8200;
}

.backbutton_section a {
    text-decoration: none;
    color: #ff8200;
    font-size: 24px;
}

.backbutton {
    display: flex;
}

.backbutton_text {
    padding-top: 4px;
    padding-left: 10px;
}

.download_button a {
    text-decoration: none;
    color: black;
}

.pdf_text {
    color: #ff8200;
}

.member_name {
    color: #ff8200;
}

.member_image {
    padding-right: 20px;
}

.member_review {
    padding-top: 20px;
    padding-bottom: 50px;
}

.song_play {
    margin-top: 30px;
}

@media screen and (max-width: 820px) {
    .sheet_body {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .comment_side {
        max-width: 100%;
        margin-left: 80px;
        margin-right: 80px;
    }

    .sheet_song {
        max-width: 100%;
    }

    .song_play {
        margin-top: 25px;
    }

    .backbutton {
        margin: 40px;
        margin-top: 120px;
    }

    .backbutton img {
        width: 20px;
    }

    .backbutton_text {
        font-size: 20px;
    }
}

@media screen and (max-width: 600px) {
    .song_imagetext {
        display: flex;
        flex-direction: column;
    }

    .song_title {
        padding: 0;
    }
}

.sheet_img {
    position: relative;
    display: inline-block;
}

.left_button {
    left: 3%;
    /* 按钮靠左边 */
}

.right_button {
    right: 3%;
    /* 按钮靠右边 */
}

.left_button img,
.right_button img {
    width: 40px;
    height: 40px;
}

.left_button,
.right_button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.3;
    /* 默认透明 */
    transition: opacity 0.3s ease;
    cursor: pointer;
    z-index: 10;
    /* 显示在图片之上 */
}

.left_button:hover,
.right_button:hover {
    opacity: 1;
    /* 悬停时完全可见 */
}