.book-details-body {
    width: 100%;
    max-width: 1280px;
    margin: 70px auto;
    margin-top: 70px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.book-details-left {
    width: 35%;
    position: relative;
    height: 400px;
    border: 1px solid #999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-details-right {
    width: 60%;
}

.book-details-public {
    max-width: 95%;
    max-height:90%;
}

.book-details-img-small {
    width: 100%;
    height: 180px;
    position: absolute;
    bottom: -200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.book-details-img-small-in {
    width: 30%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #999;
    position: relative;
    cursor: pointer;
}

.book-details-img-small-in img {
    width: 90%;
    height: 90%;
}

.book-details-img-small-in:after,
.book-details-img-small-in:before {
    border: 10px solid transparent;
    border-bottom: 10px solid #fff;
    width: 0;
    height: 0;
    position: absolute;
    top: 0;
    top: -20px;
    content: " ";
}

.book-details-img-small-in:before {
    border-bottom-color: #999;
    top: -21px;
}

.title-class {
    font-size: 28px;
    font-weight: 900;
    padding-bottom: 10px;
    border-bottom: 1px dashed #999;
}

.details-class {
    line-height: 50px;
    color: #999;
    position: relative;
}

.details-tab-class {
    width: 100%;
    border-bottom: 1px dashed #999;
    display: flex;
    position: relative;
}

.details-tab-button {
    padding: 10px;
    margin-right: 30px;
    font-size: 18px;
    color: #999;
    cursor: pointer;
    margin-bottom: -3px;
}

.detail-tab-button-click {
    font-weight: 900;
    border-bottom: 3px solid #bb0019;
    color: #000;
    margin-bottom: -2px;
}

.details-tab-body {
    width: 100%;
}

.introduction {
    color: #999;
    text-indent: 2em;
    line-height: 40px;
    min-height:200px;
}

.catalogue {
    color: #999;
    text-indent: 2em;
    line-height: 50px;
    min-height:200px;
}

.catalogue p {
    border-bottom: 1px dashed #999;
}

.qr-div {
    width: 100px;
    height: 100px;
    position: absolute;
    top: 30px;
    right: 30px;
    padding: 20px;

    background: linear-gradient(to top, #f00, #f00) left top no-repeat,
        /*上左*/ linear-gradient(to right, #f00, #f00) left top no-repeat,
        /*左上*/ linear-gradient(to left, #f00, #f00) right top no-repeat,
        /*上右*/ linear-gradient(to bottom, #f00, #f00) right top no-repeat,
        /*上右*/ linear-gradient(to left, #f00, #f00) left bottom no-repeat,
        /*下左*/ linear-gradient(to bottom, #f00, #f00) left bottom no-repeat,
        /*左下*/ linear-gradient(to top, #f00, #f00) right bottom no-repeat,
        /*下右*/ linear-gradient(to left, #f00, #f00) right bottom no-repeat; /*右下*/
    background-size: 2px 30px, 30px 2px, 2px 30px, 30px 2px;
}

.qr-div::after {
    content: "扫码下载";
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

/* 20220217���� */
.goout {
    display: flex;
    align-items: center;
}
.goout-icon-out {
    height: 40px;
    margin: 0 10px;
    position: relative;
    cursor: pointer;
}
.goout-icon {
    height: 100%;
}

.goout-icon-t {
    display: none;
    position: absolute;
    top: -180px;
}

.goout-icon-out:hover > .goout-icon-t {
    display: block;
}

/* ���� */
.opendialog {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    bottom: -100px;
    left: 0;
    height: 60px;
}

.open_button {
    width: 290px;
    height: 80px;
    border: 5px solid #df8793;
    background-color: #bb0019;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.open_button_class {
    margin-left: 10px;
    font-size: 30px;
    font-weight: 900;
    color: #fff;
}

.dialog-class {
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.5);
    /* display: flex; */
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.dialog-window {
    width: 450px;
    /* height: 700px; */
    background-color: #fff;
}

.dialog-title {
    height: 50px;
    width: 100%;
    font-size: 20px;
    color: #000;
    text-indent: 20px;
    font-weight: 900;
    background-color: #e9e9e9;
    display: flex;
    align-items: center;
}

.dialog-main {
    width: 100%;
    height: calc(100% - 50px);
    display: flex;
    align-items: center;
    flex-direction: column;
}

.dialog-input-class {
    width: calc(100% - 60px);
    height: 28px;
    margin-top: 10px;
    border-radius: 0;
    border: 1px solid #aaaaaa;
    padding: 0 10px;
    color: #888;
}
.dialog-input-class:focus {
    outline: none;
    box-shadow: 2px 2px 2px #aaaaaa;
}

.dialog-input-must {
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dialog-input-must::before {
    content: "*";
    position: absolute;
    top: 12px;
    right: 26px;
    color: red;
    width: 10px;
    height: 10px;
    font-size: 26px;
}

.dialog-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px 0;
}

.dialog-submit-class {
    width: 120px;
    height: 40px;
    font-size: 18px;
    cursor: pointer;
    margin: 0 10px;
    border-radius: 5px;
}

.dialog-submit-success {
    background-color: #238cdc;
    border: 1px solid #238cdc;
    color: #fff;
}

.dialog-submit-out {
    background-color: #ffffff;
    border: 1px solid #aaaaaa;
    color: #666666;
}