@charset "utf-8";
/*Author: BeiYue*/
/*QQ: 964214970*/
/*Telegram: BeiYue88*/
/*==============================================================*/

/* CSS Index */
/*媒体查询样式--开始------------------------------------------------------*/
@media only screen and (max-width: 1400px) {
	header {
		max-height: 28.571vw;
	}

	.main_cent {
		width: 100%;
		padding: 0 2.143vw;
	}
}

@media only screen and (max-width: 1200px) {
	header {
		max-height: 33.333vw;
		height: 33.333vw;
	}

	.banner_pc {
		display: none;
	}

	.banner_app {
		display: block;
	}
}

@media only screen and (max-width: 1080px) {
	.ms_box {
		margin-bottom: 100px;
	}

}

@media only screen and (max-width: 780px) {
    nav {
        position: relative;
    }
    header {
        margin-top: 0;
    }
    
	nav .nav_box {
		justify-content: center;
	}

	nav .top_nav {
		width: 100%;
		height: 100px;
		min-height: 100px;
		position: fixed;
		bottom: 0;
		justify-content: space-between;
		padding: 0 30px;
		background: var(--bai);
		box-shadow: 0 -10px 20px rgba(36, 7, 7, 0.2);
	}

	nav .top_nav a:nth-child(1) {
		margin-left: 0;
	}

	.txt_pc {
		display: none;
	}

	.txt_app {
		display: flex;
	}

	.top_nav a {
		padding: 0 5px;
	}
}

@media only screen and (max-width: 720px) {

	.banquan {
		margin-bottom: 100px;
	}
}