html, body{
    border: 0;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}
.container{
    height: 100%;
    width: 60%;
    position: relative;
    margin: 0 auto;
}

/* Page Loader开始 */
/* Page Loader开始 */
/* Page Loader开始 */
#page_loader{
    width: 100%;
	height: 100%;
	position: fixed;
	background-color:#FFF;
	z-index: 1000;
}
.loader{
    position: absolute;
	width: auto;
	height:auto;
	margin: -25px 0 0 -25px;
	top:50%;
	left:50%;
	text-align:center;
}
/* Page Loader结束 */
/* Page Loader结束 */
/* Page Loader结束 */
/* Navigation开始 */
/* Navigation开始 */
/* Navigation开始 */

/* RWD 768px 1200px*/
@media screen and (min-width: 1200px){
#header_background_color{
    background-color: transparent;
}
.header{
    font-size: 15px;
    font-weight: bold;
    line-height: normal;
    position: fixed;
    text-align: center;
    width: 100%;
    z-index: 100;
}
.header_h1{
    float: left;
    height: 100%;
    width: 30%;
    padding: 0px 0;
}
.header_h1 h1 a{
    display: block;
    color: #FFFFFF;
    font-size: 250%;
    text-decoration: none;
    text-align: center;
    line-height: 100px;
}
.header_nav{
    float: left;
    height: 100%;
    width: 70%;
}
.header_nav li{
    width: 20%;
}
#menu{
    height: 100%;
    width: 100%;
    visibility: visible;
}
#menu ul{
    display: block;
    width: 100%;
    text-align: center;
}
#menu ul li{
    display: inline-block;
    position: relative;
    height: 100px;
}
#menu ul li a{
    display: block;
    color: #FFFFFF;
    font-size: x-large;
    text-decoration: none;
    text-align: center;
    line-height: 100px;
    padding: 0px 5px;
}
input[type="checkbox"]{
    display: none;
}
}
/* Navigation结束 */
/* Navigation结束 */
/* Navigation结束 */

.target_fix{
    position: relative;
    top: -100px;
    display: block;
    visibility: hidden;
}


.home{
    width: 100%;
    overflow: hidden;
    font-family: Georgia, serif;
    display: inline-block;
}
.flexslider{
    overflow: hidden;
	position: relative;
    display: flex;
    align-items: center;
    background-color: #202020;
}


/* img开始 */
.img_holder{
    display: inline-block;
    position: absolute;
}
.img_holder img{
    background-position: center 0;
	background-repeat: no-repeat;
	background-size: cover;
	width: 100%;
    min-height: 1080px;
    object-fit: cover;

    -webkit-transition: opacity 2s ease-in-out;
    -moz-transition: opacity 2s ease-in-out;
    -o-transition: opacity 2s ease-in-out;
    transition: opacity 2s ease-in-out;
}
.img_holder img.parallax {
	background-attachment: fixed;
}
/* .img_holder_previous{
    visibility: visible;
    z-index: 2;
} */
.img_holder_active{
    visibility: visible;
    z-index: 10;
    transition: opacity 1s;
    opacity: 1;
}
/* .img_holder_next{
    visibility: visible;
    z-index: 1;
} */
.img_holder_hidden{
    visibility: hidden;
    opacity: 0;
}
/* img结束 */



/* text开始 */
.text_holder{
    height: 250px;
    width: 100%;
    position: absolute;
    z-index: 90;
}
/* 垂直置中开始 */
.text_holder_center{
    vertical-align: top;
}
.text_holder_center::before{
    content: "";
    display: inline-block;
    width: 0;
    height: 100%;
    vertical-align: middle;
}
/* 垂直置中结束 */
.big{
    height: 75px;
    text-align: center;
}
.big p{
    display: inline-block;
    color: #FFFFFF;
    font-size: 300%;
    -webkit-text-stroke: 1px #000000;
}
.small{
    height: 75px;
    text-align: center;
}
.small p{
    display: inline-block;
    color: #FFFFFF;
    font-size: 150%;
    -webkit-text-stroke: 0.3px #000000;
}
.slider_btn{
    height: 100px;
    text-align: center;
}
.slider_btn a{
    height: 30px;
    width: 200px;

    display: inline-block;
    color: #FFFFFF;
    font-size: 200%;
    -webkit-text-stroke: 0.3px #000000;
    border-radius: 20px;
    border:2px solid #FFF;
	background:transparent;
    text-decoration:none;
}
.big p:hover, .small p:hover{
    background: #000000a8;
}
.slider_btn a:hover{
    background: #000000a8;
    cursor: pointer;
}
/* text结束 */
  
/* arrow开始 */
.left_arrow{
    height: 100px;
    width: 50px;
    position: absolute;
    z-index: 99;
    left: 0;
    border-top-right-radius: 20px;
    border-bottom-right-radius: 20px;
    border-top-left-radius: 0px;
    border-bottom-left-radius: 0px;
}
.right_arrow{
    height: 100px;
    width: 50px;
    position: absolute;
    z-index: 99;
    right: 0;
    border-top-right-radius: 0px;
    border-bottom-right-radius: 0px;
    border-top-left-radius: 20px;
    border-bottom-left-radius: 20px;
}
.left_arrow:hover, .right_arrow:hover{
    background: #000000a8;
    cursor: pointer;
}
.arrow{
    border: solid #FFFFFF;
    border-width: 0 3px 3px 0;
    display: inline-block;
    padding: 3px;
    width: 20px;
    height: 20px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
}
.left{
    transform: rotate(135deg);
    -webkit-transform: rotate(135deg);
}
.right{
    transform: rotate(-45deg);
    -webkit-transform: rotate(-45deg);
}
/* arrow结束 */
/* dots_btn开始 */
.dots_btn{
    width: 100%;
    position: absolute;
    bottom: 5%;
    z-index: 99;
    text-align: center;
}
#dots_btn :first-child{
    margin-left: 0px;
}
.dots{
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    margin-left: 10px;
    background-color: #bbb;
    cursor: pointer;
    -webkit-transition: background-color 0.5s;
    transition: background-color 0.5s;
}
.dots:hover{
    background-color: #717171;
}
.dot_active{
    background-color: #717171;
}
/* dots_btn结束 */
  
  
  
/* Slider结束 */
/* Slider结束 */
/* Slider结束 */







.section_2{
    background-color: #F6F6F6;
    height: 1000px;
    line-height: normal;
    text-align: center;
}
.section_2 h2{
    font-size: 5rem;
    font-family: fantasy;
    word-break: break-all;
}
.img_section_2{
    display: table-cell;
    vertical-align: middle;
}
.img_section_2 img{
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: auto;
}
.section_2 .tab{
    height: 30px;
}
.section_2 .tab2{
    height: 10px;
}
.section_3{
    background-image: url("../images/index/img_section_3_5.jpg");
    height: 500px; 
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
.section_4{
    background-color: #F6F6F6;
    height: 1500px;
    line-height: normal;
    text-align: center;
}
.section_4 h2{
    font-size: 5rem;
    font-family: fantasy;
    word-break: break-all;
}
.section_4 .tab{
    height: 100px;
}
.section_4 .tab2{
    height: 50px;
}
.section_5{
    background-image: url("../images/index/img_section_3_5.jpg");
    height: 500px; 
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
.section_6{
    background-color: #00808C;
    height: 1000px;
    line-height: normal;
    text-align: center;
}
.section_6 .contact{
    text-align:center;
}
.section_6 h2{
    font-size: 5rem;
    font-family: fantasy;
    word-break: break-all;
}
.section_6 p{
    font-family: fantasy;
    font-size: 2rem;
    word-break: break-all;
}
.section_6 .tab{
    height: 80px;
}
.section_6 .tab2{
    height: 40px;
}
.section_6 .tab3{
    height: 20px;
}
.footer{
    background-color: #1C1C1C;
    height: 75px;
    line-height: normal;
    text-align: center;
}
.footer .container{
    display: flex;
}
.footer .contact{
    height: 100%;
    width: 100%;
}
.footer p{
    color: #FFFFFF;
    margin-top: 25px;
}

/* Input开始 */
.form_label{
    font-family: 'Roboto', sans-serif;
    font-size: 1.2rem;
    margin-left: 2rem;
    margin-top: 0.7rem;
    display: block;
    transition: all 0.3s;
    transform: translateY(0rem);
}
  
.form_input{
    font-family: 'Roboto', sans-serif;
    color: #333;
    font-size: 1.2rem;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    border-radius: 0.2rem;
    background-color: rgb(255, 255, 255);
    border: none;
    width: 50%;
    display: block;
    border-bottom: 0.3rem solid transparent;
    transition: all 0.3s;
}
  
.form_input:placeholder-shown + .form_label{
    opacity: 0;
    visibility: hidden;
    -webkit-transform: translateY(-4rem);
    transform: translateY(-4rem);
}
/* Input结束 */

/* Button开始 */
/* section_2_btn开始 */
.section_2_btn{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    /* padding: 2em 0em; */
}
.s2_btn{
    letter-spacing: 0.1em;
    cursor: pointer;
    font-size: 14px;
    font-weight: 400;
    line-height: 45px;
    /* max-width: 160px; */
    max-width: 500px;
    position: relative;
    text-decoration: none;
    text-transform: uppercase;
    width: 100%;
}
.s2_btn:hover{
    text-decoration: none;
}
.s2_effect{
    --uismLinkDisplay: var(--smLinkDisplay, inline-flex);
    display: var(--uismLinkDisplay);
    color: #000;
    outline: solid  2px #000;
    position: relative;
    transition-duration: 0.4s;
    overflow: hidden;
}
.s2_effect::before, .s2_effect span{
    margin: 0 auto;
    transition-timing-function: cubic-bezier(0.86, 0, 0.07, 1);
    transition-duration: 0.4s;
}
.s2_effect:hover{
    background-color: #000;
}
.s2_effect:hover span{
    -webkit-transform: translateY(-400%) scale(-0.1,20);
    transform: translateY(-400%) scale(-0.1,20);
}
.s2_effect::before{
    content: attr(data-sm-link-text);
    color: #FFF;
    position: absolute;
    left: 0;
    right: 0;
    margin: auto;
    -webkit-transform: translateY(500%) scale(-0.1,20);
    transform: translateY(500%) scale(-0.1,20);
}
.s2_effect:hover::before{
    letter-spacing: 0.05em;
    -webkit-transform: translateY(0) scale(1,1);
    transform: translateY(0) scale(1,1);
}
/* section_2_btn结束 */
/* Button结束 */


/* RWD 768px 1200px*/
@media screen and (max-width: 1200px){
    /* Logo开始 */
    #header_background_color{
        background-color: transparent;
    }
    .header{
        font-size: 15px;
        font-weight: bold;
        line-height: normal;
        position: fixed;
        text-align: center;
        width: 100%;
        z-index: 100;
    }
    .header_h1{
        float: left;
        height: 100%;
        width: 30%;
        padding: 0px 0;
    }
    .header_h1 h1 a{
        display: block;
        color: #FFFFFF;
        font-size: 350%;
        text-decoration: none;
        text-align: center;
        line-height: 100px;
    }
    /* Logo结束 */
    .header_nav{
        position: fixed;
        top: 0;
        /* left: -100%; */
        right: -100%;
        height: 100%;
        width: 100%;
        /* background: #000000; */
        background: linear-gradient(90deg, #FFFFFF 0%, #000000 100%);
        /* background: linear-gradient(90deg, #f92c78, #4114a1); */
        /* background: linear-gradient(375deg, #1cc7d0, #2ede98); */
        /* background: linear-gradient(-45deg, #e3eefe 0%, #efddfb 100%); */
        transition: all 0.6s ease-in-out;
    }
    #active:checked ~ .header_nav{
        /* left: 0; */
        right:0;
    }
    .menu-btn{
        position: absolute;
        z-index: 2;
        right: -50px;
        /* left: 20px; */
        top: 30px;
        height: 50px;
        width: 50px;
        text-align: center;
        line-height: 50px;
        border-radius: 50%;
        font-size: 20px;
        cursor: pointer;
        /* color: #FFFFFF; */
        /* background: linear-gradient(90deg, #f92c78, #4114a1); */
        /* background: linear-gradient(375deg, #1cc7d0, #2ede98); */
        /* background: linear-gradient(-45deg, #e3eefe 0%, #efddfb 100%); */
        transition: all 0.3s ease-in-out;
    }
    .menu-btn span,
    .menu-btn:before,
    .menu-btn:after{
        content: "";
        position: absolute;
        top: calc(50% - 1px);
        left: 30%;
        width: 40%;
        border-bottom: 2px solid #FFFFFF;
        transition: transform .6s cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    .menu-btn:before{
        transform: translateY(-8px);
    }
    .menu-btn:after{
        transform: translateY(8px);
    }
      
      
    .close {
        z-index: 1;
        width: 100%;
        height: 100%;
        pointer-events: none;
        transition: background .6s;
    }
      
    /* RWD_header关闭 */
    #active:checked + .menu-btn span {
        transform: scaleX(0);
    }
    #active:checked + .menu-btn:before {
        transform: rotate(45deg);
        border-color: #fff;
    }
    #active:checked + .menu-btn:after {
        transform: rotate(-45deg);
        border-color: #fff;
    }
    .header_nav ul{
        position: absolute;
        top: 60%;
        left: 50%;
        height: 90%;
        transform: translate(-50%, -50%);
        list-style: none;
        text-align: center;
    }
    .header_nav ul li{
        height: 10%;
        margin: 15px 0;
    }
    .header_nav ul li a{
        text-decoration: none;
        font-size: 30px;
        font-weight: 500;
        padding: 5px 30px;
        color: #fff;
        border-radius: 50px;
        position: absolute;
        line-height: 50px;
        margin: 5px 30px;
        opacity: 0;
        transition: all 0.3s ease;
        transition: transform .6s cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    .header_nav ul li a:after{
        position: absolute;
        content: "";
        background: #fff;
         /* background: linear-gradient(#14ffe9, #ffeb3b, #ff00e0); */
        /* background: linear-gradient(375deg, #1cc7d0, #2ede98); */
        width: 100%;
        height: 100%;
        left: 0;
        top: 0;
        border-radius: 50px;
        transform: scaleY(0);
        z-index: -1;
        transition: transform 0.3s ease;
    }
    .header_nav ul li a:hover:after{
        transform: scaleY(1);
    }
    .header_nav ul li a:hover{
        color: #1a73e8;
    }
    input[type="checkbox"]{
        display: none;
    }
    #active:checked ~ .header_nav ul li a{
        opacity: 1;
    }
    .header_nav ul li a{
        transition: opacity 1.2s, transform 1.2s cubic-bezier(0.215, 0.61, 0.355, 1);
        transform: translateX(100px);
    }
    #active:checked ~ .header_nav ul li a{
        transform: none;
        transition-timing-function: ease, cubic-bezier(.1,1.3,.3,1);
        transition-delay: .6s;
        transform: translateX(-100px);
    }

    /* RWD文字开始 */
    .section_2 h2{
        font-size: 3rem;
        font-family: fantasy;
        word-break: break-all;
    }
    .section_4 h2{
        font-size: 3rem;
        font-family: fantasy;
        word-break: break-all;
    }
    .section_6 h2{
        font-size: 3rem;
        font-family: fantasy;
        word-break: break-all;
    }
    .section_6 p{
        font-family: fantasy;
        font-size: 1.5rem;
        word-break: break-all;
    }
    /* RWD文字结束 */
}
/* RWD */