.prdt_container {
			width: 100%;
			height: auto;
			margin: 0 auto;
			font-family: '思源黑体regular', 'Microsoft YaHei';
		}

		.avatar_first {
			/* width: 80%; */
			/* text-align: center; */
			font-size: 2rem;
			margin-top: 10%;
			margin-bottom: 13%;
		}


		.avatar_first span {
			line-height: 5rem;
			padding-left: 1.25rem;
		}

		.avatar_second img {
			width: 100%;
			height: 100%;
			margin-top: 5%;
			margin-bottom: 5%;
		}


		.avatar_second {
			margin-bottom: 15%;
		}

		.second_right {
			margin-top: 10%;
			margin-left: -5%;
		}

		.avatar_img img {
			width: 300px;
			height: auto;
		}

		.avatar_third p {
			width: 80%;
			font-size: 1.5rem;
			padding-left: 20%;
			font-weight: 700;
			text-indent: 1cm;
			letter-spacing: 2px;
		}

		.row1 {
			background-color: #f3f6fd;
		}

		.four_secone_left img {
			/* height: 90%; */
			width: 100%;
			height: auto;
			/* padding-top: 3%; */
			padding-left: 35%;
			/* font-weight: 700; */
			padding-bottom: 15%;
			padding-top: 15%;

		}

		.four_first_right img {
			/* height: 90%; */
			width: auto;
			padding-left: 15%;
			/* padding-top: 15%; */
			margin-top: 15%;
			padding-bottom: 15%;
		}

		.four_first_left {
			padding-left: 10%;
			font-weight: 700;
			/* font-size: 1.5rem; */
			margin-top: 10%;
		}

		.four_secone_right {
			padding-left: 20%;
			font-weight: 700;
			/* padding-top: 6%; */
			/* font-size: 1.5rem; */
			margin-top: 10%;
		}

		/* 回到顶端 */
		.arrow {
			border: 9px solid transparent;
			border-bottom-color: #3DA0DB;
			width: 0px;
			height: 0px;
			top: 0px
		}

		.stick {
			width: 8px;
			height: 14px;
			border-radius: 1px;
			background-color: #3DA0DB;
			top: 15px;
		}

		#back_top div {
			position: absolute;
			margin: auto;
			right: 0px;
			left: 0px;
		}

		#back_top {
			background-color: #dddddd;
			height: 38px;
			width: 38px;
			border-radius: 3px;
			display: block;
			cursor: pointer;
			position: fixed;
			right: 50px;
			bottom: 100px;
			display: none;
		}