:root {
    --base: calc(100vw / 1920)
}

.banner {
    position: relative;
    overflow: hidden;
}

.banner img {
    width: 100%;
}

.banner_tit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #031543;
    font-size: 50px;
    font-weight: 600;
}

.banner_dis {
    position: absolute;
    top: 64%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #031543;
    font-weight: normal;
    font-size: 22px;
}

.w1200 {
    width: 1440px;
    margin: auto;
}

.title {
    text-align: center;
    font-size: 34px;
    line-height: 1;
    margin-bottom: 50px;
    color: #031543;
    font-weight: 600;
    padding-top: 5.2%;
}

.con {
    padding: 0 0 5.2% 0;
}

.tx-outbox {
    background: #F3F5F7;
    padding-bottom: 3%;
}

.fw-outbox {
    padding-bottom: 3%;
}

.tx-header {
    position: relative;
}

.tx-header>a {
    position: absolute;
    right: 0;
    bottom: -4px;
    font-size: 18px;
    color: #0086F1;
    line-height: 1;
}

.tx-outbox .tx {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: stretch;
}

.tx-outbox .tx .tx-item {
    width: calc(calc(100% - calc(var(--base) * 80)) / 3);
    background: #FFFFFF;
    box-shadow: 3px 3px 34px 0px #ECF0F4;
    border-radius: 12px;
    padding: calc(var(--base) * 38);
    box-sizing: border-box;
    height: calc(var(--base) * 257);
    overflow: hidden;
    margin-bottom: calc(var(--base) * 40);
    margin-right: calc(var(--base) * 40);
}

.tx-outbox .tx .tx-item:nth-child(3n) {
    margin-right: 0 !important;
}

.tx-item .tx-item-innner {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    position: relative;
    top: 0;
    transition: all 0.35s ease;
    cursor: pointer;
    height: 100%;
    overflow: hidden;
    padding: 10px 0;
    background: #fff;
}

.tx-item:hover .tx-item-innner {
    transform: translateY(-40%);
}

.tx-item>img {
    width: calc(var(--base) * 84);
    height: auto;
    object-fit: cover;
    display: block;
    margin-bottom: calc(var(--base) * 26);
    transition: all 0.4s;
    opacity: 1;
}
.tx-item:hover>img{
  opacity: 0;
}

.tx-item-innner .title {
    font-weight: 400;
    font-size: 22px;
    color: #252B3A;
    line-height: calc(12 / 22);
    margin-bottom: 0;
    padding-top: 0;
}

.tx-item-innner .dis {
    font-weight: 400;
    font-size: 16px;
    color: #252B3A;
    line-height: calc(26 / 16);
    opacity: 0.5;
    margin-top: calc(var(--base) * 20);
}

.btn-download {
    width: calc(var(--base) * 185);
    height: calc(var(--base) * 48);
    background: #0086F1;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    font-size: 16px;
    color: #FFFFFF;
    margin-top: calc(var(--base) * 40);
    transition: all 0.4s;
    position: absolute;
    top: 100%;
    left: 0;
    opacity: 0;
    overflow: hidden;
}
.tx-item:hover .btn-download {
    opacity: 1;
    top: 40%;
}
.btn-download img {
    width: 15px;
    display: inline-block;
    margin-right: 5px;
    object-fit: cover;
    height: auto;

}

.fw {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: stretch;
    width: 100%;
}

.fw .fw-item {
    width: calc(calc(100% - calc(var(--base) * 92)) / 3);
    background: #FFFFFF;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
}

.fw-item .img-box {
    width: 100%;
}

.fw-item .img-box img {
    border-radius: 20px 20px 0 0;
    width: 100%;
    object-fit: cover;
}

.fw-item-inner {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    flex-direction: column;
    padding: calc(var(--base) * 40);
    background: #FAFAFA;
    border-radius: 0 0 20px 20px;
}

.fw-item-inner:hover {
    background: #fff;
    box-shadow: 3px 3px 34px 0px #ECF0F4;
}

.fw-item-inner .fw_tit {
    font-weight: bold;
    font-size: 24px;
    color: #031543;
    line-height: 1;
    margin-bottom: calc(var(--base) * 15);
}

.fw-item-inner .fw_des {
    font-size: 16px;
    color: #031543;
    line-height: 24px;
    opacity: 0.8;
}

.fw-item-inner .fw-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-top: calc(var(--base) * 35);
}

.fw-item-inner .fw-btn a {
    width: calc(var(--base) * 170);
    height: calc(var(--base) * 48);
    background: #FFFFFF;
    border-radius: 24px;

    box-sizing: border-box;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #031543;
    color: #031543;
}

.fw-item-inner .fw-btn a:hover {
    background: #0086F1;
    color: #fff;
    border: 1px solid transparent;
}


/* 历史 */
.history-header {
    font-weight: bold;
    font-size: 36px;
    color: #031543;
    margin-bottom: calc(var(--base) * 60);
    margin-top: 203px;
    text-align: center;
}


.history-box {
    display: flex;
    align-items: stretch;
    min-height: 80vh;
    padding-bottom: 80px;
}
.history-box .nav{
    flex: 0 0 calc(var(--base) * 180);
    margin-right: calc(var(--base) * 90);
  }
  .history-box  .center{
  flex: 1;
  }
  .history-box  .center  .tx-outbox{
    background-color: #fff;
    padding-bottom: 0;
  }
.history-box .nav .title {
    font-weight: bold;
    font-size: 20px;
    color: #031543;
    margin-bottom: calc(var(--base) * 20);
    text-align: left;
}

.history-box .nav ul {
    display: flex;
    flex-direction: column;
    border-left: 1px solid #C6C6C8;
}

.history-box .nav ul li {
    margin-bottom: calc(var(--base) * 14);
    border-left: 1px solid transparent;
    box-sizing: border-box;
    background-color: #fff;
    font-size: 16px;
    line-height: 1;
    padding: calc(var(--base) * 7) calc(var(--base) * 20);
    cursor: pointer;
}

.history-box .nav ul li:last-child {
    margin-bottom: 0;
}
.history-box .nav ul li:hover{
    background: rgba(0, 134, 241, 0.1);
    color: #0086F1;
}
.history-box .nav ul li.active {
    background: rgba(0, 134, 241, 0.1);
    color: #0086F1;
    border-left-color: #0086F1;
}
.nav-cp{
    margin-top:calc(var(--base) * 60) ;
}
.center .tx-outbox .tx .tx-item{
    width: calc(calc(100% - calc(var(--base) * 60)) / 3);
    border-radius: 12px;
    padding: calc(var(--base) * 30);
    height: calc(var(--base) * 191);
    margin-bottom: calc(var(--base) * 30);
    margin-right: calc(var(--base) * 30);
}
.center .tx-item>img {
    width: calc(var(--base) * 63);
    margin-bottom: calc(var(--base) * 26);
}

.center .tx-item-innner .title {
    font-size: 24px;
    line-height: calc(14 / 10);
    text-align: left;
}

.center .tx-item-innner .dis {
    margin-top: calc(var(--base) * 13);
}
/* .center .tx-item .tx-item-innner:hover>img{
    margin-bottom: calc(var(--base) * 40); 
} */
   /* 默认隐藏所有 item，由 JS 控制显示 */
   .page-item {
    display: none;
}
.center .tx-item:hover .tx-item-innner {
    transform: translateY(-55%);
}

.center .tx-item:hover .btn-download{
    top: 32%;
}

/* 分页按钮样式 */
.pg-btn {
background: #fff;
border: 1px solid #ddd;
color: #333;
cursor: pointer;
transition: all 0.3s;
outline: none;
width: calc(var(--base) * 50);
height:calc(var(--base) * 50);
box-sizing: border-box;
display: flex;
align-items: center;
justify-content: center;
font-size: 20px;
color: #999FA7;
border-radius: 4px;
}

.pg-btn:hover:not(:disabled) {
    background: #0086F1;
    color: #fff;
    border-color: #0086F1;
}

.pg-btn:disabled {
    background: #f5f5f5;
    color: #ccc;
    border-color: #eee;
    cursor: not-allowed;
}

/* 历史 */
@media only screen and (max-width: 1200px) {
    .w1200 {
        width: 90%;
    }
}

@media only screen and (max-width: 768px) {
    .w1200 {
        width: 100%;
        padding: 0 20px;
    }

    .banner_tit {
        font-size: 30px;
    }

    .banner img {
        position: relative;
        right: 100%;
    }

    .title {
        margin-bottom: 20px;
        font-size: 24px;
    }

    .con {
        padding: 35px 0;
    }
}