h3 {
    font-size: 36px;
    line-height: 41px;
    color: #333333;
}

.banner {
    position: relative;
    width: 100%;
    height: 680px;
    left: 0;
    top: 0;
    opacity: 0;
    transition: .7s;
	background: linear-gradient(to bottom, #D3DAFF, #FFFFFF);
}

.banner.active {
    z-index: 1;
    opacity: 1;
}

.btn_ltc_1 {
	width: 195px;
	height: 78px;
	background: linear-gradient( 45deg, #1774FF 0%, #D9E9FF 100%);
	border-radius: 65px;
}
.btn_ltc_2 {
	margin-left: 32px;
	width: 195px;
	height: 78px;
	background: #E8F4FF;
	border-radius: 65px;
}

.b_d .btn_big_2 {
	display: flex;
	align-items: center;
	padding-left: 24px;
	color: #1774FF;
	font-size: 26px;
	line-height: 32px;
	border-radius: 100px;
	font-weight: 400;
}

.btn_big_2 img {
	margin-left: 16px;
}

.content {
    width: var(--width);
    margin: auto;
    display: flex;
    align-items: center;
    height: 100%;
    box-sizing: border-box;
}

.content h4 {
    font-size: 48px;
    line-height: 54px;
    color: #333333;
    margin-bottom: 24px;
    font-weight: 900;
    white-space: nowrap;
}

.content p {
    width: 680px;
    text-align: justify;
    font-size: 20px;
    line-height: 36px;
    color: #666666;
}

.content button {
    height: 78px;
    width: 195px;
    font-size: 16px;
    font-weight: 600;
}

.center_1{
	padding-top: 100px;
}
.center_1 h3{
	text-align: center;
	color: #333;
}
.center_1 div h3{
	text-align: left;
	margin-bottom: 25px;
	margin-left: 93px;
	color: #333;
}
.center_1 div ul{
	margin-left: 93px;
}
.center_1_a {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	margin-top: 110px;
}
.custom-list li {
	font-size: 18px;
	color: #666666;
	line-height: 40px;
}
.custom-list li:before {
	font-size: 18px;
	content: "•";
	color: #1774FF;
	margin-right: 16px;
}