ul,
ol,
li {
	list-style: none;
	list-style-type: none;
	margin: 0;
	padding: 0px;
}

p,
div,
a,
span,
ul,
li,
img,
form,
input,
br,
dl,
dt,
dd,
body {
	padding: 0;
	margin: 0;
}

body,
html {
	overflow-x: hidden !important;
}


a {
	text-decoration: none;
}

.type-area {
	width: 72rem;
	margin: 0 auto;
}

.header-bg {
	background-color: #143a94;
}

.headline {
	font-family: Arial, Arial;
	font-weight: bold;
	font-size: 48px;
	color: #121418;
	line-height: 56px;
	text-align: center;
	/* animation: slideInUp 1s forwards; */
}

.cen-line {
	width: 104px;
	border-top: 1px solid #E5E5E5;
	margin: 0 auto;
	margin-top: 24px;
	margin-bottom: 48px;
}

.cen-line span {
	width: 24px;
	border-top: 3px solid #143A94;
	display: block;
	margin: 0 auto;
	transform: translateY(-3px);
}

.mar-bt {
	margin-bottom: 5rem;
}

.not-select {
	-moz-user-select: none !important;
	-webkit-user-select: none !important;
	-ms-user-select: none !important;
	-khtml-user-select: none !important;
	user-select: none !important;
}


.aerospace-swiper {
	width: 100%;
	height: 32rem;
	margin-top: 88px;
}

.aerospace-swiper .swiper-container,
.aerospace-swiper .swiper-container .swiper-wrapper {
	width: 100%;
	height: 100%;
}

.aerospace-swiper .swiper-container .swiper-wrapper img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
}

/* 轮播文字 */

.about-us .txt-box {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translateX(-50%) translateY(-50%);
}


.about-us .txt-box .tit {
	font-family: Arial, Arial;
	font-weight: bold;
	font-size: 3.2rem;
	color: #FFFFFF;
	margin-bottom: 16px;
	text-align: center;
	/* animation: slideInUp 1s forwards; */
}

.about-us .txt-box .info {
	font-family: Arial, Arial;
	font-weight: 400;
	font-size: 1.4rem;
	color: #FFFFFF;
	text-align: center;
	/* animation: slideInUp 1.5s forwards; */
}

@media (max-width: 1680px) {
	.headline {
		font-size: 40px;
		line-height: 48px;
	}

	.aerospace-swiper {
		margin-top: 70px;
	}


}

@media (max-width: 1600px) {
	.type-area {
		width: 85%;
	}

	.cen-line {}
}

@media (max-width: 1460px) {
	.type-area {
		width: 90%;
	}

	.headline {
		font-size: 28px;
		line-height: 40px;
	}

	.aerospace-swiper {
		margin-top: 50px;
	}

	.about-us .txt-box .tit {
		font-size: 40px;
	}

	.about-us .txt-box .info {
		font-size: 25px;
	}
}

@media (max-width: 1152px) {
	.type-area {
		width: 95%;
	}

	.cen-line {
		width: 90px;
		margin-top: 20px;
		margin-bottom: 30px;
	}

	.mar-bt {
		margin-bottom: 50px;
	}

	.about-us .txt-box .tit {
		font-size: 30px;
		margin-bottom: 5px;
	}

	.about-us .txt-box .info {
		font-size: 20px;
	}
}

@media (max-width: 900px) {
	.headline {
		font-size: 24px;
		line-height: 30px;
	}

	.mar-bt {
		margin-bottom: 40px;
	}

	.cen-line {
		width: 90px;
		margin-top: 20px;
		margin-bottom: 30px;
	}

	.cen-line {
		width: 90px;
		margin-top: 15px;
		margin-bottom: 20px;
	}
}

@media (max-width: 750px) {
	.about-us .txt-box .tit {
		font-size: 20px;
	}

	.about-us .txt-box .info {
		font-size: 16px;
	}

	.mar-bt {
		margin-bottom: 30px;
	}

	.cen-line {
		width: 70px;
	}

	.headline {
		font-size: 20px;
		line-height: 24px;
	}

}

@media (max-width: 500px) {
	.about-us .txt-box .tit {
		font-size: 18px;
	}

	.about-us .txt-box .info {
		font-size: 14px;
	}

	.mar-bt {
		margin-bottom: 20px;
	}

	.headline {
		font-size: 18px;
		line-height: 22px;
	}
}

@media (max-width: 450px) {


	.represent-box .item img {
		min-width: 100px;
	}
}

@media (max-width: 400px) {
	.represent-box .item img {
		min-width: 80px;
	}
}


@keyframes slideInUp {
	from {
		transform: translateY(100%);
		opacity: 0;
	}

	to {
		transform: translateY(0);
		opacity: 1;
	}
}

@keyframes fadeIn {
	0% {
		opacity: 0;
	}

	100% {
		opacity: 1;
	}
}


@keyframes fadeInLeft {
	from {
		transform: translateX(-100%);
		opacity: 0;
	}

	to {
		transform: translateX(0);
		opacity: 1;
	}
}