/* page1,2 */

.content .title {
    display: flex;
    justify-content: center;
    padding: 50px 0;
    flex-direction: column;
    align-items: center;
    position: relative;}

.content .title img {
    height: 175px;
    width: 831px;}

.content .title .returnindex {
    position: absolute;
    top: 0;
    right: 50px;
    width: 140px;
    height: 45px;
    background-color: #0071c1;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;}

.content .title .returnindex a {
    color: #ffffff;}

.content .pagelist {
    position: relative;}

.content .pagelist ul {
    display: flex;}

.content .pagelist ul li {
    list-style: none;
    width: 240px;
    height: 50px;
    background: #0071c1;
    display: flex;
    justify-content: center;
    align-items: center;}

.content .pagelist ul li a {
    color: #ffffff;
    font-size: 18px;
    position: relative;}

.content .pagelist .marker {
    position: absolute;
    background-color: #ffffff;
    width: 180px;
    height: 5px;
    left: 30px;
    bottom: 3px;
    transition: 0.5s;
    border-radius: 5px;}

.content .readarea {
    height: 100vh;
    padding: 40px;}


/* page3 */

.content .readarea2 {
    height: 100vh;
    padding: 50px 0;
    background-color: #fafafa;
    display: flex;}

.content .readarea2 nav {
    width: 20%;
    height: 100%;
    padding: 0 20px;}

.content .readarea2 nav ul li {
    list-style: none;
    width: 100%;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #0071c1;
    margin-bottom: 15px;
    color: #ffffff;
     cursor:pointer;}

.content .readarea2 .pdfPlayer {
    width: 80%;
    height: 100%;}

.content .readarea2 embed {
    width: 100%;
    height: 100%;}


/* page4 */

.content .cooperative {
    padding: 50px;
    display: flex;
    flex-direction: column;}

.content .cooperative .enterprise {
    border-top: 2px #000 solid;
    border-bottom: 2px #000 solid;
    position: relative;
    padding-bottom: 99px;}

.content .cooperative .enterprise::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 0;
    width: 8%;
    height: 7px;
    background-color: #0071c1;}

.content .cooperative .enterprise::after {
    content: "";
    position: absolute;
    bottom: -5px;
    right: 0;
    width: 8%;
    height: 7px;
    background-color: #0071c1;}

.content .cooperative .enterprise .labelt {
    width: 100%;
    height: 99px;
    background: linear-gradient( to right, transparent 0%, transparent 50%, #000 50%, #000 100%);
    background-size: 20px 1px;
    background-repeat: repeat-x;
    background-position: bottom;
    padding: 10px 0;
    display: flex;
    justify-content: space-between;}

.content .cooperative .enterprise .labelt img {
    height: 100%;}

.content .cooperative .enterprise .labelt .placeholder {
    width: 160px;}


/* page5 */

.content .platform {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;}

.content .platform .baseitem {
    width: 385px;
    display: flex;
    flex-direction: column;}

.content .platform .baseitem img {
    width: 100%;
    height: 320px;}

.content .platform .baseitem .sketch {
    width: 100%;
    height: 65px;
    background-color: #f2f2f2;
    color: #0071c1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    font-size: 18px;}