body{ background: url(../images/bg.png) no-repeat; background-size: 100% 100%; box-sizing: border-box; padding-bottom: 40px; box-sizing: border-box; }
.content{ width: 1420px; max-width: 75%; margin: 0 auto; height: 100%; position: relative; display: flex; align-items: center; justify-content: center; height: 100%; }
.text-center{ flex: 1; padding-right: 30px; color: #fff; }
.logo-box{ display: flex; align-items: center; position: relative; }
.logo-box .logo{ width: 128px; }
.logo-box .img-name{ width: 375px; margin-left: 30px; }
.logo-box .center{ flex: 1; padding-left: 18px; }
.logo-box .center .h1{ font-size: 70px; font-weight: bold; line-height: 1; }
.logo-box .center .h2{ font-size: 40px; margin-top: 6px; }

.text-center .message{ width: 80%; font-size: 30px; margin-top: 40px; margin-bottom: 120px;  color: #fff; }

.down-btn{ width: 460px; height: 90px; display: flex; align-items: center; justify-content: center; background: #fff; border-radius: 45px; margin-bottom: 34px; box-shadow: 0 10px 5px rgba(0, 0, 0, .2); }
.down-btn .icon{ width: 40px; height: 44px; }
.down-btn .center{ padding-left: 28px; }
.down-btn .center .label{ font-size: 24px; }
.down-btn .center .name{ font-size: 36px; font-weight: 500; transform: translateY(-4px);}

.img-box{ font-size: 0; position: relative; }
.img-box .img{ font-size: 0; width: 100%; min-width: 685px; position: relative; }
.img-box .star{ width: 374px; height: 321px; position: absolute; left: 8%; top: 8%; 
    animation: floatUpDown 2s ease-in-out infinite;
 }
.img-box .star.right{ right: 0; left: auto; top: 7%; }

@keyframes floatUpDown {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-30px);
    }
}

footer{ position: absolute; left: 0; bottom: 0; width: 100%; text-align: center; padding-bottom: 35px; }
footer span,a{ margin: 0 30px; color: #1d690e; font-size: 22px;   }
footer a{ text-decoration: underline;  }

@media screen and (max-width:1450px) {
    .logo-box .center .h1{ font-size: 56px; }
    .logo-box .center .h2{ font-size: 34px; }
}