.site-header {
    width: 100%;
    height: 625px;
    min-height: 62.5vh;
    position: relative;
    text-align: center;
    background: url(../images/banner1.jpg) no-repeat center center/cover;
    display: table;
}

.site-header::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

:after,
:before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.site-header .intro {
    color: #fff;
    position: relative;
    text-align: center;
    text-transform: uppercase;
    width: 100%;
    z-index: 1;
    padding: 0 15px;
    display: table-cell;
    vertical-align: middle;
    height: 100vh;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

.site-header .intro h2 {
    margin-top: 0px;
    font-size: 25px;
    font-weight: 300;
}

.site-header .intro h1 {
    padding-top: 50px;
    font-size: 58px;
    font-weight: 600;
}

.btn-white {
    color: #000;
    background-color: rgba(0, 95, 195, 1);
}

.btn {
    border: 5;
    padding: 0.367em 1em;
    text-transform: uppercase;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -moz-osx-font-smoothing: grayscale;
    -webkit-transition-duration: 0.3s;
    transition-duration: 0.3s;
    -webkit-transition-property: -webkit-transform;
    transition-property: transform;
    display: inline-block;
    margin-bottom: 0;
    font-size: 18px;
    font-weight: 400;
    color: #ffffff;
    line-height: 30px;
    text-align: center;

    white-space: nowrap;
    vertical-align: middle;
    -ms-touch-action: manipulation;
    touch-action: manipulation;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-image: none;
    border: 1px solid transparent;
    border-radius: 4px;
}

/*.cb-slideshow,
.cb-slideshow:after { 
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0px;
    left: 0px;
    z-index: 0; 
}*/
.cb-slideshow:after {
    content: '';
    background: background-color：#000000;
}

.cb-slideshow li span:before {
    background-color: #000000;
}

/*.cb-slideshow li a{display: block;width: 100%;
    height: 100%;top: 0px;
    left: 0px;position: absolute;z-index: 1;}*/
.cb-slideshow li span {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    color: transparent;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: none;
    opacity: 0;
    z-index: 0;
    -webkit-backface-visibility: hidden;
    -webkit-animation: imageAnimation 36s linear infinite 0s;
    -moz-animation: imageAnimation 36s linear infinite 0s;
    -o-animation: imageAnimation 36s linear infinite 0s;
    -ms-animation: imageAnimation 36s linear infinite 0s;
    animation: imageAnimation 36s linear infinite 0s;
    background-color: rgba(0, 0, 0, 0.40);
}

.cb-slideshow li div {
    z-index: 1000;
    width: 100%;
    position: absolute;
    top: 50%;
    margin-top: -100px;
    left: 0px;
    text-align: center;
    opacity: 0;
    color: #fff;
    -webkit-animation: titleAnimation 36s linear infinite 0s;
    -moz-animation: titleAnimation 36s linear infinite 0s;
    -o-animation: titleAnimation 36s linear infinite 0s;
    -ms-animation: titleAnimation 36s linear infinite 0s;
    animation: titleAnimation 36s linear infinite 0s;
}

.cb-slideshow li div h3 {
    font-family: 'BebasNeueRegular', 'Arial Narrow', Arial, sans-serif;
    font-size: 240px;
    padding: 0;
    line-height: 200px;
}

.cb-slideshow li:nth-child(1) span {
    background-image: url(../images/banner3.jpg);
    background-color: rgba(0, 0, 0, 0.40);
}

.cb-slideshow li:nth-child(2) span {
    background-image: url(../images/banner6.jpg);
    background-color: rgba(0, 0, 0, 0.40);
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -o-animation-delay: 6s;
    -ms-animation-delay: 6s;
    animation-delay: 6s;
}

.cb-slideshow li:nth-child(3) span {
    background-image: url(../images/banner8.jpg);
    background-color: rgba(0, 0, 0, 0.40);
    -webkit-animation-delay: 12s;
    -moz-animation-delay: 12s;
    -o-animation-delay: 12s;
    -ms-animation-delay: 12s;
    animation-delay: 12s;
}

.cb-slideshow li:nth-child(4) span {
    background-image: url(../images/banner3.jpg);
    background-color: rgba(0, 0, 0, 0.40);
    -webkit-animation-delay: 18s;
    -moz-animation-delay: 18s;
    -o-animation-delay: 18s;
    -ms-animation-delay: 18s;
    animation-delay: 18s;
}

.cb-slideshow li:nth-child(5) span {
    background-image: url(../images/banner6.jpg);
    background-color: rgba(0, 0, 0, 0.40);
    -webkit-animation-delay: 24s;
    -moz-animation-delay: 24s;
    -o-animation-delay: 24s;
    -ms-animation-delay: 24s;
    animation-delay: 24s;
}

.cb-slideshow li:nth-child(6) span {
    background-image: url(../images/banner8.jpg);
    background-color: rgba(0, 0, 0, 0.40);
    -webkit-animation-delay: 30s;
    -moz-animation-delay: 30s;
    -o-animation-delay: 30s;
    -ms-animation-delay: 30s;
    animation-delay: 30s;
}

.cb-slideshow li:nth-child(2) div {
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -o-animation-delay: 6s;
    -ms-animation-delay: 6s;
    animation-delay: 6s;
}

.cb-slideshow li:nth-child(3) div {
    -webkit-animation-delay: 12s;
    -moz-animation-delay: 12s;
    -o-animation-delay: 12s;
    -ms-animation-delay: 12s;
    animation-delay: 12s;
}

.cb-slideshow li:nth-child(4) div {
    -webkit-animation-delay: 18s;
    -moz-animation-delay: 18s;
    -o-animation-delay: 18s;
    -ms-animation-delay: 18s;
    animation-delay: 18s;
}

.cb-slideshow li:nth-child(5) div {
    -webkit-animation-delay: 24s;
    -moz-animation-delay: 24s;
    -o-animation-delay: 24s;
    -ms-animation-delay: 24s;
    animation-delay: 24s;
}

.cb-slideshow li:nth-child(6) div {
    -webkit-animation-delay: 30s;
    -moz-animation-delay: 30s;
    -o-animation-delay: 30s;
    -ms-animation-delay: 30s;
    animation-delay: 30s;
}

/* Animation for the slideshow images */
@-webkit-keyframes imageAnimation {
    0% {
        opacity: 0;
        -webkit-animation-timing-function: ease-in;
    }

    8% {
        opacity: 1;
        -webkit-animation-timing-function: ease-out;
    }

    17% {
        opacity: 1
    }

    25% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@-moz-keyframes imageAnimation {
    0% {
        opacity: 0;
        -moz-animation-timing-function: ease-in;
    }

    8% {
        opacity: 1;
        -moz-animation-timing-function: ease-out;
    }

    17% {
        opacity: 1
    }

    25% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@-o-keyframes imageAnimation {
    0% {
        opacity: 0;
        -o-animation-timing-function: ease-in;
    }

    8% {
        opacity: 1;
        -o-animation-timing-function: ease-out;
    }

    17% {
        opacity: 1
    }

    25% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@-ms-keyframes imageAnimation {
    0% {
        opacity: 0;
        -ms-animation-timing-function: ease-in;
    }

    8% {
        opacity: 1;
        -ms-animation-timing-function: ease-out;
    }

    17% {
        opacity: 1
    }

    25% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@keyframes imageAnimation {
    0% {
        opacity: 0;
        animation-timing-function: ease-in;
    }

    8% {
        opacity: 1;
        animation-timing-function: ease-out;
    }

    17% {
        opacity: 1
    }

    25% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

/* Animation for the title */
@-webkit-keyframes titleAnimation {
    0% {
        opacity: 0
    }

    8% {
        opacity: 1
    }

    17% {
        opacity: 1
    }

    19% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@-moz-keyframes titleAnimation {
    0% {
        opacity: 0
    }

    8% {
        opacity: 1
    }

    17% {
        opacity: 1
    }

    19% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@-o-keyframes titleAnimation {
    0% {
        opacity: 0
    }

    8% {
        opacity: 1
    }

    17% {
        opacity: 1
    }

    19% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@-ms-keyframes titleAnimation {
    0% {
        opacity: 0
    }

    8% {
        opacity: 1
    }

    17% {
        opacity: 1
    }

    19% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

@keyframes titleAnimation {
    0% {
        opacity: 0
    }

    8% {
        opacity: 1
    }

    17% {
        opacity: 1
    }

    19% {
        opacity: 0
    }

    100% {
        opacity: 0
    }
}

/* Show at least something when animations not supported */
.no-cssanimations .cb-slideshow li span {
    opacity: 1;
}


.site-header .intro1 {
    color: #fff;
    position: absolute;
    text-align: center;
    text-transform: uppercase;
    width: 90%;
    left: 50%;
    transform: translateX(-50%);
    top: 50%;
    bottom: 28%;
    z-index: 1;
    padding: 20px 15px;
    display: table-cell;
    vertical-align: middle;
    /*height: 100vh;*/
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 10px;
    box-sizing: border-box;

    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

.site-header .intro1 h2 {
    margin-top: 0px;
    font-size: 25px;
    font-weight: 300;
}

.site-header .intro1 h1 {
    padding-top: 50px;
    font-size: 58px;
    font-weight: 600;
}

/* 注册按钮容器 - 固定在父容器中 */
.register-button-container {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001;
    text-align: center;
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
    pointer-events: none;
    margin-top: 20px;
}

.register-button-container .btn {
    pointer-events: auto;
    display: inline-block;
}

/* 移动端按钮位置调整 */
@media screen and (max-width: 640px) {
    .register-button-container {
        top: 80%;
        margin-top: 10px;
    }
}

.site-header .ban-tit {
    position: absolute;
    /*bottom: 0;*/
    top: 36vh;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
}

.site-header .ban-tit h2 {
    color: #FFFFFF;
    text-align: center;
    letter-spacing: 0.1em;
    font-size: 50px;
}

.site-header .ban-tit .en-tit {
    color: #FFFFFF;
    font-family: Arial;
    font-size: 20px;
}

.site-header .ban-tit em {
    color: #FFFFFF;
    font-size: 26px;
    font-style: normal;
    letter-spacing: 0.1em;
}

@media screen and (max-width: 1400px) {
    .site-header .intro1 {
        text-align: center;
    }

    .site-header .intro1 img {
        max-width: 73%;
    }
}

@media screen and (max-width: 1140px) {
    .cb-slideshow li div h3 {
        font-size: 140px
    }

    .site-header .intro1 {
        text-align: center;
    }

    .site-header .intro1 img {
        max-width: 85%;
    }
}

@media screen and (max-width: 640px) {
    .cb-slideshow li div h3 {
        font-size: 80px
    }

    .site-header {
        width: 100%;
        height: 375px;
        min-height: 37.5vh;
    }

    .site-header .intro1 {
        text-align: center;
        top: 60%;
        width: 90% !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
    }

    .site-header .intro1 img {
        max-width: 100%;
    }
}