* {
    margin: 0;
    padding: 0;
    font-size: 14px;
    font-family: 微软雅黑, Microsoft YaHei, Arial;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: #000;
}

body {
    display: flex;
    justify-content: center;
}

.root {
    padding-top: 50px;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.btbc,
.bc,
.bc2 {
    display: flex;
    width: 100%;
    justify-content: center;
    background-color: #f4f4f4;
}

.btbc {
    padding: 10px 0 5px 0;
}

.zpbt {
    max-width: 1200px;
    width: 100%;
    padding: 0 15px;
}

.zpbt div a,
.tt {
    font-size: 30px;
    color: #126db1
}

.zpbt div a:hover {
    color: #00EAFF
}

.zpt:hover .zp-tex a {
    color: #126db1
}

.bc {
    padding: 5px 0 10px 0;
}

.zp,
.logos {
    display: flex;
    max-width: 1200px;
    justify-content: space-between;
    flex-wrap: wrap;
    margin: 0 auto;
    padding: 0 10px;
}

.zpt {
    width: 280px;
    background-color: #FFF;
    margin: 10px;
    border: 1px solid #fff;
    min-width: 200px;
    transition: color 0.5s ease;
    box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.2);
}

.zpt:hover {
    /* border: 1px solid #00EAFF; */
    box-sizing: border-box;
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.5);
}

.zp-pic {
    aspect-ratio: 280/158;
}

.fill-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.zp-tex,
.kh-tex {
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
}

.zp-tex {
    padding: 5px 10px;
}

.zp-tex a {
    font-size: 16px;
}

.kh-tex {
    font-size: 14px;
    padding-bottom: 10px;
}

@-moz-document url-prefix() {
    .zp-pic {
        width: 100% !important;
        min-width: 0;
    }
    .fill-image {
        min-width: 100%;
        min-height: 100%;
    }
    .zpt {
        flex-basis: 280px;
    }
}

.header {
    max-width: 1200px;
    height: 50px;
    display: flex;
    justify-content: space-between;
    flex-grow: 1;
}

.header-a {
    display: flex;
    padding: 12px 0 0 35px;
}

.header-a img {
    width: 239px;
    height: 30px;
}

.header-b {
    display: flex;
    padding-right: 35px;
}

.header-b a {
    display: flex;
    padding: 18px 30px 11px 30px;
    color: #fff;
}

.header-b a:hover {
    background-color: #3e3e3e;
    border-bottom: 1px solid #00EAFF;
    box-sizing: border-box;
    color: #00EAFF
}

.ppt-alzs,
.ppt {
    height: auto;
    aspect-ratio: 3 / 1;
    display: flex;
    background-repeat: no-repeat;
    background-position: center top;
    background-size: auto 100%;
}

.ppt {
    background-image: url(/images/img1.jpg);
}

.ppt-alzs {
    background-image: url(/images/img2.jpg);
}

.tel {
    display: none;
}

.zpt,
.kh {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: top;
    flex-grow: 1;
    box-sizing: border-box;
    transition: border-color 0.5s;
    border-radius: 5%;
}

.kh {
    width: 190px;
    border: 1px solid #f4f4f4;
    min-width: 135px;
}

.kh-logo,
.zp-pic {
    width: 100%;
    overflow: hidden;
    flex-shrink: 0;
    border-top-left-radius: 5%;
    border-top-right-radius: 5%;
    background-color: #c6faff;
}

.kh-logo {
    aspect-ratio: 23/10;
}

.logo-t {
    width: 100%;
    max-width: 1200px;
    display: flex;
    align-items: center;
    padding: 0 15px;
    margin: 10px 0 5px 0;
}

.dl {
    flex: 1;
    max-width: 500px;
    height: 1px;
    border-top: 1px dashed #a2a2a2;
}

.tt {
    font-size: 28px;
    color: #126db1;
    white-space: nowrap;
    padding: 0 10px;
}

.footline {
    display: flex;
    width: 100%;
    height: 8px;
    background-image: url(/images/top-top.jpg);
    margin-top: 20px;
}

.foot-bc {
    display: flex;
    width: 100%;
    justify-content: center;
    background-color: #262626;
    color: #FFF;
}

.foot {
    display: flex;
    width: 100%;
    max-width: 1200px;
    flex-direction: column;
    margin: 0 auto;
    justify-content: left;
}

.foot div {
    margin: 10px 0 0 20px;
}

.foot div:nth-child(1) {
    font-size: 20px;
    margin-top: 10px;
}

.beian a {
    color: #666666;
}

.beian {
    padding-top: 10px;
}

.video-main {
    display: flex;
    max-width: 1170px;
    width: 100%;
    margin: 0 auto;
    padding: 15px;
    flex-direction: column;
    box-sizing: border-box;
}

.video-main div h1 {
    text-align: center;
}

.video {
    display: flex;
    max-width: 946px;
    aspect-ratio: 946/549;
    background-color: fff;
    border: 1px solid #9a9a9a;
    border-radius: 1.5%;
    margin: 0 auto;
    justify-content: center;
    align-items: center;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.4);
    transition: box-shadow 0.3s ease;
    background: linear-gradient(#eff8fa, #FFF);
}

.video-image {
    display: flex;
    max-width: 896px;
    width: calc(100% - 4px);
    padding: 2px;
    margin: 0 auto;
    flex-direction: column;
}

.video-image img {
    margin: 15px 0 0 0;
}

.video:hover {
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.5);
}

.video-bg {
    width: 96.8%;
    height: 94.5%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.02%;
}

video::-webkit-media-controls-download-button {
    display: none !important;
}

video::-webkit-media-controls {
    overflow: hidden !important;
}

video {
    width: 99.5%;
    height: 99.2%;
    display: block;
}

@media (max-width: 575px) {
    .video-image-bottom {
        display: flex;
        max-width: 1200px;
        height: 35px;
    }
    .foot div:nth-child(1) {
        font-size: 17px;
        margin-top: 10px;
    }
    .zpt {
        width: calc(50% - 4px);
        min-width: auto;
        flex-basis: calc(50% - 4px);
        margin: 2px;
    }
    .zp-tex a {
        font-size: 14px;
        transition: color 0.3s ease;
    }
    .zpbt div a {
        font-size: 20px;
    }
    .zpbt div {
        font-size: 11px;
    }
    .onoff1,
    .off-logo,
    .header-bc-1 {
        display: none;
    }
    .header {
        justify-content: center;
    }
    .header-b {
        padding-right: 0;
    }
    .header-b a {
        padding: 18px 20px 11px 20px;
    }
    .header-b a:hover {
        background-color: #ffffff00;
        border-bottom: 1px solid #ffffff00;
        box-sizing: border-box;
        color: #7e7e7e;
    }
    .header-bc-2 {
        background: linear-gradient(#ededed, #FFF);
        width: 100%;
        top: 0%;
        left: 0%;
        position: fixed;
        z-index: 11;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 20px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
    .header-bc-2 a {
        color: #7e7e7e;
        letter-spacing: 2px;
    }
    .tel {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: linear-gradient(#FFF, #ededed);
        padding: 10px 0;
        text-align: center;
        font-size: 14px;
        color: #333;
        box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.1);
        z-index: 10;
    }
    .tel .wechat-link {
        color: #07C160;
        text-decoration: none;
        font-weight: 500;
        cursor: pointer;
    }
    .tt {
        font-size: 20px;
    }
    .logo-t {
        padding: 0 10px;
    }
    .kh {
        width: calc(25% - 7.5px);
        flex-basis: calc(25% - 7.5px);
        margin: 2px 2px 5px 2px;
        min-width: auto;
    }
    .kh-tex {
        font-size: 12px;
    }
    .pc-tel {
        display: none;
    }
    .beian {
        padding-top: 20px;
    }
    .foot-bc {
        background: linear-gradient(#ededed, #FFF);
        color: #7e7e7e;
    }
    .video-main div h1 {
        font-size: 18px;
        margin-bottom: 15px;
        margin-top: 10px;
    }
}

@media (min-width: 576px) and (max-width: 991px) {
    .header-b a:hover {
        background-color: #ffffff44;
        border-bottom: 1px solid #fff;
        box-sizing: border-box;
        color: #333;
    }
    .zpt {
        width: calc(33.333% - 6px);
        flex-basis: calc(33.333% - 6px);
        min-width: 150px;
        margin: 3px;
    }
    .zp-tex a {
        font-size: 14px;
        transition: color 0.3s ease;
    }
    .off,
    .off-logo,
    .off-logo2,
    .header-bc-1 {
        display: none;
    }
    .zpbt div a {
        font-size: 25px;
    }
    .header {
        justify-content: center;
    }
    .header-b {
        padding-right: 0;
    }
    .header-b a {
        padding: 18px 20px 11px 20px;
    }
    .header-bc-2 {
        background: linear-gradient(#ededed, #FFF);
        width: 100%;
        top: 0%;
        left: 0%;
        position: fixed;
        z-index: 11;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .header-bc-2 a {
        color: #7e7e7e;
        letter-spacing: 2px;
    }
    .tt {
        font-size: 24px;
    }
    .kh {
        width: calc(20% - 8px);
        flex-basis: calc(20% - 8px);
        margin: 2px 2px 5px 2px;
        min-width: auto;
    }
    .video-main div h1 {
        font-size: 25px;
        margin-top: 15px;
        margin-bottom: 15px;
    }
}

@media (min-width: 992px) and (max-width: 1199px) {
    .zpt {
        width: calc(33.333% - 6px);
        flex-basis: calc(33.333% - 6px);
        min-width: 150px;
        margin: 3px;
    }
    .zp-tex a {
        font-size: 15px;
        transition: color 0.3s ease;
    }
    .header-bc-1 {
        background-color: #262626;
        width: 100%;
        top: 0%;
        left: 0%;
        position: fixed;
        z-index: 11;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .off,
    .header-bc-2 {
        display: none;
    }
    .header-b {
        padding-right: 30px;
    }
    .kh {
        width: calc(16.666% - 8.333px);
        flex-basis: calc(16.666% - 8.333px);
        margin: 2px 2px 5px 2px;
        min-width: auto;
    }
    .video-main div h1 {
        font-size: 25px;
        margin-top: 15px;
        margin-bottom: 15px;
    }
}

@media (min-width: 1200px) {
    .video-main div h1 {
        font-size: 25px;
        margin-top: 15px;
        margin-bottom: 15px;
    }
    .ppt-alzs,
    .ppt {
        height: 400px;
        width: 100%;
        display: flex;
        background-repeat: no-repeat;
        background-position: center top;
    }
    .ppt {
        background-image: url(/images/img1.jpg);
    }
    .ppt-alzs {
        background-image: url(/images/img2.jpg);
    }
    .zp,
    .logos {
        width: 1200px;
        padding: 0;
    }
    .kh {
        width: calc(16.666% - 8.333px);
        flex-basis: calc(16.666% - 8.333px);
        margin: 2px 2px 5px 2px;
        flex-grow: 0;
        min-width: auto;
    }
    .zpt {
        width: calc(25% - 20px);
        flex-basis: calc(25% - 20px);
        margin: 10px;
        flex-grow: 0;
        min-width: auto;
    }
    .header-bc-1 {
        background-color: #262626;
        width: 100%;
        top: 0%;
        left: 0%;
        position: fixed;
        z-index: 11;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .header-bc-2 {
        display: none;
    }
}