/* CSS PingTai */
.fengge {
    width: 100%;
    height: 200px;
    display: none;
}
/*平台分类----开始--------------------------------------------------------*/
.pt_nav {
    width: 980px;
    display: flex;
    margin: 0 auto;
    justify-content: space-between;
    margin-bottom: 20px;
    margin-top: 20px;
    padding: 20px;
    box-sizing: border-box;
    position: relative;
    z-index: 899;
}

.pt_nav li {
    width: 260px;
    height: 60px;
    background: url(../image/btn_02.png) 0 no-repeat;
    background-size: 260px 60px;
    overflow: hidden;
    border-radius: 30px;
    box-shadow: 0 5px 8px rgba(52, 69, 121, 0.2);
    box-sizing: border-box;
    border: 1px solid #d7e0f4;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    letter-spacing: 2px;
    cursor: pointer;
    color: var(--txt);
    margin: 0 20px;
}

.pt_nav .pt_act,
.pt_nav li:hover {
    background: url(../image/btn_01.png) 0 no-repeat;
    background-size: 260px 60px;
    border: 1px solid #14adff;
    color: #fff;
}

/*平台分类----结束--------------------------------------------------------*/
/*首页平台----开始--------------------------------------------------------*/
.pingtai {
    width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 899;
}

.pt_box {
    width: 320px;
    height: 360px;
    background: url(../image/pt_bg.png) 0 no-repeat;
    border-radius: 20px;
    overflow: hidden;
    box-sizing: border-box;
    box-shadow: 0 5px 15px rgba(49, 48, 53, 0.1);
    margin: 10px;
    padding-top: 28px;
    display: none;
}

.pt_box .pt_bt {
    color: var(--txt);
    font-size: 34px;
    letter-spacing: 2px;
    text-align: center;
    margin: 0 auto;
    margin-bottom: 20px;
    transition: all 0.3s;
}

.pt_box:hover .pt_bt {
    color: var(--zlan);
}

.pt_box .pt_logo {
    width: 160px;
    height: 160px;
    background: #fff;
    margin: 0 auto;
    margin-bottom: 20px;
}

.pt_box .pt_logo img {
    transition: all 0.3s;
}

.pt_box:hover .pt_logo img {
    transform: scale(1.1);
}

/*首页平台----结束--------------------------------------------------------*/
/*平台详情----开始--------------------------------------------------------*/
.pt_content {
    width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 999;
}

.pt_content dd {
    width: 100%;
    height: 70px;
    background: var(--zlan);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    padding: 0 20px;
    border-radius: 12px 12px 0 0;
}

.pt_content dd h1 {
    color: #fff;
    font-size: 26px;
    font-weight: bolder;
}

.pt_content dd a {
    width: 100px;
    height: 40px;
    background: var(--bai);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 6px;
    border: 1px solid var(--bai);
    transition: all 0.3s;
}

.pt_content dd a:hover {
    color: var(--bai);
    background: var(--zlan);
}

.pt_content dt {
    width: 100%;
    border-radius: 0 0 12px 12px;
    background: #fff;
    box-sizing: border-box;
    padding: 20px;
}

.pt_content dt .ptnr_btbox {
    display: flex;
    justify-content: left;
    align-items: center;
}

.pt_content dt .ptnr_btbox p {
    font-size: 26px;
    font-weight: bolder;
    color: var(--zlan);
}

.pt_content dt .ptnr_btbox span {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--bai);
    background: var(--zlan);
    padding: 4px 6px;
    margin-left: 10px;
    border-radius: 4px;
}

.pt_content dt .ptnr_ptbox {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pt_content dt .ptnr_ptbox .ptnr_logo {
    width: 260px;
    height: 260px;
}

.pt_content dt .ptnr_ptbox ul {
    width: calc(100% - 280px);
    margin-left: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    box-sizing: border-box;
}

.pt_content dt .ptnr_ptbox ul a {
    flex: 1 1 calc(100% / 3);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
    margin: 10px;
    border-radius: 6px;
    color: var(--bai);
    transition: all 0.3s;
}

.pt_content dt .ptnr_ptbox ul a:nth-child(1),
.pt_content dt .ptnr_ptbox ul a:nth-child(2) {
    background: var(--zred);
    border: 1px solid var(--zred);
}

.pt_content dt .ptnr_ptbox ul a:nth-child(3),
.pt_content dt .ptnr_ptbox ul a:nth-child(4) {
    background: var(--lan2);
    border: 1px solid var(--lan2);
}

.pt_content dt .ptnr_ptbox ul a:nth-child(5) {
    background: var(--lv);
    border: 1px solid var(--lv);
}

.pt_content dt .ptnr_ptbox ul a:nth-child(6) {
    background: var(--cheng);
    border: 1px solid var(--cheng);
}

.pt_content dt .ptnr_ptbox ul a:hover {
    background: var(--bai);
    color: var(--zlan);
    border: 1px solid var(--zlan);
}

/*平台详情----结束--------------------------------------------------------*/
.btn_ty {
    width: 260px;
    height: 60px;
    background: url(../image/btn_ty01.png) 0 no-repeat;
    background-size: 260px 60px;
    overflow: hidden;
    border-radius: 30px;
    box-shadow: 0 5px 8px rgba(52, 69, 121, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 22px;
    letter-spacing: 2px;
    text-shadow: 0 2px 5px rgba(49, 48, 53, 0.3);
    margin: 0 auto;
    color: var(--bai);
    transition: all 0.3s;
}

.btn_ty:hover {
    background: url(../image/btn_ty02.png) 0 no-repeat;
    background-size: 260px 60px;
    box-shadow: 0 5px 8px rgba(121, 77, 52, 0.4);
}

/*适配*/
@media only screen and (max-width: 1400px) {
    .pingtai {
        width: 100%;
    }

    .pt_content {
        width: 100%;
    }
}

@media only screen and (max-width: 980px) {

    /*平台分类----开始--------------------------------------------------------*/
    .pt_nav {
        width: 100%;
    }

    /*平台分类----结束--------------------------------------------------------*/
}

@media only screen and (max-width: 800px) {
    .fengge {
        width: 100%;
        height: 200px;
        display: block;
    }

    .pt_content dt .ptnr_ptbox {
        display: block;
    }

    .pt_content dt .ptnr_ptbox .ptnr_logo {
        width: 32.5vw;
        height: 32.5vw;
        margin: 2.5vw auto;
    }

    .pt_content dt .ptnr_ptbox ul {
        width: 100%;
        margin-left: 0;
    }

}

@media only screen and (max-width: 760px) {

    /*平台分类----开始--------------------------------------------------------*/
    .pt_nav {
        margin-bottom: 2.632vw;
        margin-top: 2.632vw;
        padding: 2.632vw;
    }

    .pt_nav li {
        width: 34.211vw;
        height: 7.895vw;
        background-size: 34.211vw 7.895vw;
        border-radius: 3.947vw;
        box-shadow: 0 0.658vw 1.053vw rgba(52, 69, 121, 0.2);
        border: 0.132vw solid #d7e0f4;
        font-size: 2.632vw;
        letter-spacing: 0.263vw;
        margin: 0 2.632vw;
    }

    .pt_nav .pt_act,
    .pt_nav li:hover {
        background-size: 34.211vw 7.895vw;
        border: 0.132vw solid #14adff;
    }

    /*平台分类----结束--------------------------------------------------------*/
    /*首页平台----开始--------------------------------------------------------*/
    .pingtai {
        padding: 2.632vw;
    }

    .pt_box {
        width: 42.105vw;
        height: 47.368vw;
        background-size: 42.105vw 47.368vw;
        border-radius: 2.632vw;
        box-shadow: 0 0.658vw 1.974vw rgba(49, 48, 53, 0.1);
        margin: 1.316vw;
        padding-top: 3.684vw;
    }

    .pt_box .pt_bt {
        font-size: 4.474vw;
        letter-spacing: 0.263vw;
        margin-bottom: 2.632vw;
    }

    .pt_box .pt_logo {
        width: 21.053vw;
        height: 21.053vw;
        margin-bottom: 2.632vw;
    }

    /*首页平台----结束--------------------------------------------------------*/
    .btn_ty {
        width: 34.211vw;
        height: 7.895vw;
        background-size: 34.211vw 7.895vw;
        border-radius: 3.947vw;
        box-shadow: 0 0.658vw 1.053vw rgba(52, 69, 121, 0.4);
        font-size: 2.895vw;
        letter-spacing: 0.263vw;
        text-shadow: 0 2px 0.658vw rgba(49, 48, 53, 0.3);
    }

    .btn_ty:hover {
        background-size: 34.211vw 7.895vw;
        box-shadow: 0 0.658vw 1.053vw rgba(121, 77, 52, 0.4);
    }

}

@media only screen and (max-width: 500px) {

    /*平台详情----开始--------------------------------------------------------*/
    .pt_content {
        padding: 4vw;
    }

    .pt_content dd {
        height: 14vw;
        padding: 0 4vw;
        border-radius: 2.4vw 2.4vw 0 0;
    }

    .pt_content dd h1 {
        font-size: 5.2vw;
    }

    .pt_content dd a {
        width: 20vw;
        height: 8vw;
        border-radius: 1.2vw;
        border: 0.2vw solid var(--bai);
        font-size: 3.6vw;
    }

    .pt_content dt {
        border-radius: 0 0 2.4vw 2.4vw;
        padding: 4vw;
    }

    .pt_content dt .ptnr_btbox p {
        font-size: 5.2vw;
    }

    .pt_content dt .ptnr_btbox span {
        padding: 0.8vw 1.2vw;
        margin-left: 2vw;
        border-radius: 0.8vw;
        font-size: 3.6vw;
    }

    .pt_content dt .ptnr_ptbox .ptnr_logo {
        width: 52vw;
        height: 52vw;
        margin: 4vw auto;
    }

    .pt_content dt .ptnr_ptbox ul a {
        padding: 4vw;
        margin: 2vw;
        border-radius: 1.2vw;
        font-size: 3.6vw;
    }

    .pt_content dt .ptnr_ptbox ul a:nth-child(1),
    .pt_content dt .ptnr_ptbox ul a:nth-child(2) {
        border: 0.2vw solid var(--zred);
    }

    .pt_content dt .ptnr_ptbox ul a:nth-child(3),
    .pt_content dt .ptnr_ptbox ul a:nth-child(4) {
        border: 0.2vw solid var(--lan2);
    }

    .pt_content dt .ptnr_ptbox ul a:nth-child(5) {
        border: 0.2vw solid var(--lv);
    }

    .pt_content dt .ptnr_ptbox ul a:nth-child(6) {
        border: 0.2vw solid var(--cheng);
    }

    .pt_content dt .ptnr_ptbox ul a:hover {
        border: 0.2vw solid var(--zlan);
    }

    /*平台详情----结束--------------------------------------------------------*/
}

/* 视频展示区域样式 */
.video-section {
    width: 1400px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.video-box {
    width: 320px;
    height: 240px;
    background: #000;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.video-box video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

/* 响应式设计 */
@media (max-width: 1440px) {
    .video-section {
        width: 100%;
        padding: 2.632vw;
    }
    
    .video-box {
        width: 28vw;
        height: 21vw;
    }
}

@media (max-width: 768px) {
    .video-section {
        padding: 4vw;
    }
    
    .video-box {
        width: 90vw;
        height: 50vw;
        margin: 0 auto 20px auto;
    }
}