:root {
    --f2f2f2: #f2f2f2;
    --ffffff: #ffffff;
    --282828: #282828;
    --3562e6: #3562e6;
    --ff6623: #ff6623;
    --ffd733: #ffd733;
    --0a0a0a: #0a0a0a;
    --10192e: #10192e;
    --f3f4f5: #f3f4f5;
    --324d6f: #324d6f;
    --4e5969: #4e5969;
    --010617: #010617;
    --272829: #272829;
    --ffb714: #ffb714;
    --061021: #061021;
}

body {
    background: var(--ffffff);
    letter-spacing: 0em;
    line-height: auto;
    font-weight: 500;
    color: var(--282828);
}

.fontsize{
    font-size: 18px;
}
.page{
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
}
header{
    width: 100%;
    height: 100vh;
    min-height: 700px;
    background: url(../images/01.jpeg) no-repeat top center;
    background-size: cover;
}
.banner{
    width: 100%;
    height: 100%;
}
.left {
    width: 60%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(0 0, 90% 0, 100% 100%, 0% 100%);
    box-sizing: border-box;
    overflow: hidden;
}

.left::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(270deg, #96c2e3, #6c7c8d, var(--3562e6));
    background-size: 600% 600%;
    animation: gradientBG 10s ease infinite;
    z-index: -1;
    filter: blur(5px);
    opacity: 0.8;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
.left h2{
    width: 12em;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--ffffff);
    line-height: 1.6;
    font-size: 2em;
}
.left h2 span:nth-child(1){
    font-size: 2em;
}
.container {
    width: 100%;
    height: 100vh;
    min-height: 900px;
    padding: 3em 0 2em;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(../images/02.jpeg) no-repeat center;
    background-size: cover;
    transform: scaleX(-1);
    z-index: -1;
}
.cn_index{
    display: flex;
    flex-direction: row-reverse;
}
/*  */
.container .right{
    width: 50%;
    height: 100%;
}
.container .right iframe{
    width: 100%;
    height: 100%;
    min-height: 800px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.title{
    font-size: 2em;
    font-weight: 700;
    text-align: center;
    padding-bottom: 1em;
}
.line{
    background-color: var(--ffffff);
    height: 4em;
}
.sec03 h3{
    font-size: 2em;
    font-weight: 700;
    text-align: center;
    padding-bottom: 1em;
}

.sec03 ul{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.sec03 li{ 
    width: 30%;
    height: auto;
}
.sec03 li img{ 
    width: 100%;
    height: auto;
}

.sec03 li h4{
    font-size: 1.5em;
    padding: 1em 0 .5em;
    text-align: center;
}
.about{
    width: 100%;
    height: auto;
    background: url(../images/about.jpeg) no-repeat center;
    background-size: cover;
    padding: 3em 0;
}
.about .txt{
    width: 60%;
    color: var(--ffffff);
}
.about .txt h3{
    font-size: 2em;
    padding-bottom: 1em;
}
.about .txt p{
    line-height: 1.8;
}
.ft{
    font-size: .9em;
    line-height: 2;
    opacity: .8;
}

@media (max-width: 1320px){
    .page{
        padding: 0 5%;
    }
    .fontsize{
        font-size: 17px;
    }
}
@media (max-width: 860px){
    .fontsize{
        font-size: 14px;
    }
    .left{
        width: 100%;
        border-right: none;
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
    }
    .title{
        font-size: 2em;
    }
    .container .right {
        width: 100%;
    }
    .sec03 li h4 {
        font-size: 1em;
    }
    .sec03 li p {
        font-size: .9em;
    }
    .about .txt {
        width: 100%;
        background-color: rgba(0, 0, 0, .2);
        padding: 2em;
    }
    .line{
        height: 2.5em;
    }
}