@media only screen and (max-width:1300px) {
	.pt-5{padding-top: 40px;}
	.py-5{padding-top: 40px;padding-bottom: 40px;}
	.mb-3{margin-bottom: 20px;}
	.font-40{font-size: 34px;}
	.mb-4{margin-bottom: 30px;}
	.font-18{font-size: 16px;}
	.pt-3{padding-top: 20px;}
	.pb-4{padding-bottom: 40px;}
	.pb160{padding-bottom: 120px;}
	.pt-4{padding-top: 30px;}
	.mt-5{margin-top: 40px;}
	.bt200{width: 150px;height: 50px;line-height: 50px;border-radius: 30px;text-align: center;font-size: 18px;}
	.font-30{font-size: 26px;}
}

@media only screen and (max-width:850px) {
	.pt-5{padding-top: 30px;}
	.py-5{padding-top: 30px;padding-bottom: 30px;}
	.mb-3{margin-bottom: 10px;}
	.font-40{font-size: 28px;}
	.mb-4{margin-bottom: 20px;}
	.font-18{font-size: 14px;}
	.pt-3{padding-top: 10px;}
	.pb-4{padding-bottom: 30px;}
	.pb160{padding-bottom: 80px;}
	.pt-4{padding-top: 20px;}
	.mt-5{margin-top: 30px;}
	.bt200{width: 120px;height: 40px;line-height: 40px;border-radius: 30px;text-align: center;font-size: 16px;}
	.font-30{font-size: 22px;}
}

@media only screen and (max-width:650px) {
	.pt-5{padding-top: 20px;}
	.py-5{padding-top: 20px;padding-bottom: 20px;}
	.mb-3{margin-bottom: 10px;}
	.font-40{font-size: 24px;}
	.mb-4{margin-bottom: 10px;}
	.font-18{font-size: 12px;}
	.pt-3{padding-top: 10px;}
	.pb-4{padding-bottom: 20px;}
	.pb160{padding-bottom: 50px;}
	.pt-4{padding-top: 10px;}
	.mt-5{margin-top: 20px;}
	.bt200{width: 80px;height: 30px;line-height: 30px;border-radius: 30px;text-align: center;font-size: 14px;}
	.font-30{font-size: 20px;}
}

@media only screen and (max-width:500px) {
	.pt-5{padding-top: 10px;}
	.py-5{padding-top: 10px;padding-bottom: 10px;}
	.mb-3{margin-bottom: 10px;}
	.font-40{font-size: 22px;}
	.mb-4{margin-bottom: 10px;}
	.font-18{font-size: 10px;}
	.w83{width: 90%;}
	.pt-3{padding-top: 10px;}
	.pb-4{padding-bottom: 10px;}
	.pb160{padding-bottom: 30px;}
	.pt-4{padding-top: 10px;}
	.mt-5{margin-top: 10px;}
	.bt200{width: 70px;height: 30px;line-height: 30px;border-radius: 30px;text-align: center;font-size: 10px;}
	.font-30{font-size: 18px;}
}
@media only screen and (max-width:400px) {
	.font-40{font-size: 16px;}
	.font-30{font-size: 16px;}
}