.main1 {
	width: 100%;
	/* height: 300px; */
	background: url("../images/bg-exhibition.jpg") no-repeat;
	background-size: 100% 100%;
	padding: 50px 170px;
}

.main1 .title {
	color: white;
	font-family: 'Popins-Bold';
	font-size: 50px;
}

.main1 .title span {
	color: #83DDD9;
}

.main1 .content {
	margin-top: 20px;
	color: white;
	font-family: 'Popins-Medium';
}

.main1 .btn {
	margin-top: 40px;
	padding: 0;
	text-align: left;
}

.main1 .btn a {
	padding: 10px;
	color: #339E9B;
	border-radius: 8px;
	border: none;
	background-color: white;
	font-size: 20px;
	font-family: 'Popins-Medium';
	font-weight: 600;
	border: 1px solid #339E9B;
	text-shadow: 10px 5px 10px #D6D6D6;
}

.main1 .btn a:hover {
	padding: 10px;
	color: white;
	background-color: #339E9B;
	border-radius: 8px;
	border: none;
	text-shadow: none;

}
.main1 .btn.btn2{
	display: none;
}

 
.main3 .title,
.main2 .title {
	margin-top: 80px;
	color: #339E9B;
	font-size: 35px;
	font-weight: bold;
	text-align: center;
	font-family: 'Popins-Bold';
}

.main3 {
	padding-left: 20px;
	padding-right: 20px;
}

.main3 .title::after,
.main2 .title::after {
	content: "";
	display: block;
	width: 200px;
	height: 6px;
	margin: 0 auto;
	margin-top: 20px;
	background-image: linear-gradient(90deg, #21536D 20%, #339E9B);
}

.main2 .content {
	/* height:400px; */
	width: 100%;
	text-align: right;
	background: url("../images/sponsor2.png") no-repeat;
	background-size: 100% 100%;
	margin-bottom: 60px;
	margin-top: 60px;
	/* padding-bottom: 100px; */
}

.main2 .content div a {
	display: inline-block;
	height: 57px;
	width: 320px;
	color: white;
	background-color: #339E9B;
	line-height: 57px;
	text-align: center;
	font-size: 18px;
	font-weight: 600;
	border-top-left-radius: 30px;
	border-bottom-left-radius: 30px;
	margin-top: 30px;
	position: fixed;
	right: 0;
	top: 30%;
	z-index: 999;
}


.main2 .content div a:hover {
	box-shadow: 0px -8px 0px 0px #339E9B;
	background-color: white;
	color: #339E9B;
	/* border-radius: 10px; */
}

.main2 .content_container {
	display: flex;
	justify-content: space-around;
	width: 90%;
	margin: 0 auto;
	box-sizing: border-box;
}

.main2 .content_container div img {
	margin: auto;
}

.main2 .content_container>div {
	flex: 1;
	background-color: rgba(35, 58, 81, 0.5);
	margin: 30px 10px 125px 10px;
	padding: 40px;
	color: white;
	text-align: center;

}

.main2 .content_container>div h1 {
	font-size: 24px;
	text-align: center;
	margin-top: 10px;
	font-family: 'Popins-Bold';
	line-height: 1.5;
}

.main2 .content_container>div div {
	font-size: 20px;
	text-align: center;
	margin-top: 20px;
	font-family: 'Popins-Medium';
}

.input_div:focus-within {
	border-bottom: 2px solid red !important;
}

.last_input:focus-within {
	border-bottom: 2px solid red !important;
}

.main3 .thank {
	margin-top: 50px;
	font-size: 23px;
	font-family: 'Popins-Medium';
	text-align: center;
}

.main3 .content {
	font-size: 22px;
	color: #6c6c6d;
	width: 90%;
	margin: 60px auto;
	text-align: center;
	font-family: 'Popins-Light';
}

.main3 .content:last-child {
	/*	width: 80%;*/
}
 
 

.input_div span {
	color: red;
	font-weight: 400;
}

.introduce {
	font-size: 24px;
	color: #5f5f5f;
	margin-top: 30px;
	font-weight: 300;
	font-family: 'Popins-Light';
}

.input_div {
	display: flex;
	flex-direction: column;
	border-bottom: 2px solid #939393;
	margin-bottom: 40px;
	margin-right: 50px;
	font-weight: 500;
	box-sizing: border-box;
	width: calc(25% - 50px);
	font-family: 'Popins-Medium';
}

 
 

.form_bottom {
	margin-top: 20px;
	display: flex;
	justify-content: right;
	width: 100%;
	margin-bottom: 20px;
	align-items: center;
}

.form_bottom .left {
	color: red;
	margin-right: 30px;
	font-family: 'Popins-Light';
}

.form_bottom .left span {
	display: none;
}

.placeHolder_color::placeholder {
	color: red;
}

.form_bottom .submit {
	background-color: #339E9B;
	color: white;
	padding: 10px 90px;
	border: none;
	border-radius: 3px;
	cursor: pointer;
	font-size: 25px;
	font-family: 'Popins-Medium';
}
 

@media screen and (max-width:1440px) {
	.main2 .content_container div img {
		width: 40px;
	}

	.main2 .content_container>div h1 {
		font-size: 20px;

	}

	.main2 .content_container>div {
		padding: 20px;
	}

	.main2 .content_container>div div {
		font-size: 18px;
	}

	.main2 .content div a {
		height: 40px;
		width: 220px;
		line-height: 40px;
		font-size: 14px;
	}

	.main2 .content_container {
		width: 95%;
	}

	.main2 .content_container>div {
		margin: 15px;
	}
}

@media screen and (max-width:1080px) {
 

	.main1 .title {
		font-size: 30px;
	}

	.main1 {
		padding: 30px 70px;

	}

	.main2 .content div a {
		width: 220px;
		height: 43px;
		line-height: 43px;
		font-size: 15px;
	}
	 

	 

	.main2 .content_container>div {
		padding: 10px;
		min-height: 0;
	}

	.main2 .content_container>div h1 {
		font-size: 16px;
		margin-top: 10px;
	}

	.main2 .content_container>div div {
		font-size: 12px;
	}

	.main2 .content_container div img {
		width: 30px;
	}

	.main3 .title,
	.main2 .title {
		margin-top: 30px;
	}

	.main3 .thank {
		margin-top: 30px;
	}

	.main3 .content {
		font-size: 20px;
		margin: 30px auto;
	}

	.input_div {
		margin-right: 20px;
		margin-bottom: 25px;
		width: calc(25% - 20px)
	}

	.form_ .last_input {
		margin-bottom: 25px;
		width: calc(50% - 20px)
	}

	.introduce {
		font-size: 20px;
	}
	 
}

@media screen and (max-width:900px) {
	.main2 .content {
		background-repeat: no-repeat;
		background-position: center center;
		background-size: cover;
		padding: 20px 0;
	}

	.main2 .content_container>div {
		width: 45%;
		flex: none;
	}

	.content_container {
		/* display: flex; */
		flex-wrap: wrap;
	}
	 
}

@media screen and (max-width:768px) {
	.main1 .btn.btn1{
		display: none;
	}
	.main1 .btn.btn2{
		display: block;
	}

	.main3 .content {
		width: 100%
	}
	 

	.input_div {
		width: calc(50% - 20px)
	}

	.form_ .last_input {
		width: calc(100% - 20px)
	}

	.form_bottom {
		flex-direction: column;
	}

	.form_bottom .left {
		text-align: center;
		margin-right: 0;
	}

	.form_bottom .submit {
		margin-top: 20px;
	}

	.input_div {
		width: calc(50% - 20px);
	}
	 

	.main1 {
		padding: 20px;
		margin-top: 160px;
	}

	.main1 .btn a {
		font-size: 18px;
		padding: 10px 15px;
	}

	.main1 .content {
		font-size: 14px;
	}

	.main1 .btn {
		margin-top: 20px;
	}

	.main1 .title {
		font-size: 20px;
	}

	.main2 .content_container>div {
		width: 100%;
		flex: none;
	}

	.input_div,
	.form_ .last_input {
		margin-bottom: 10px;
	}

	 

	 

	.main3 .content {
		margin: 10px auto;
		font-size: 14px;
	}
	 
}

@media screen and (max-width:425px) {
 

	.introduce {
		font-size: 14px;
	}
 

	.main3 .title,
	.main2 .title {
		margin-top: 40px;
		font-size: 20px;

	}

	.main2 .content {
		margin-top: 20px;

	}

	.main3 .thank {
		font-size: 18px;
	}

	.input_div {
		/* width: calc(50% - 20px); */
		width: 100%;
	} 

	.introduce {
		margin-top: 0;
	}

	.main1 .btn a:hover {
		padding: 5px;

	}

	.main1 {
		padding: 20px 10px;
	}

	.main2 .content div a {
		font-size: 14px;
		width: auto;
		height: auto;
		padding: 0 10px;
	}
}