@charset "utf-8";
/* CSS Document */
body{ margin:0; padding:0; font-size:12px; font-family:"Microsoft YaHei",Arial,Helvetica,sans-serif,"微软雅黑"; overflow-x:hidden; background-color:#fff;}
div,ul,li,p,form,h1,h2,h3,h4,h5,h6,dt,dd,dl{padding:0;margin:0; font-family:"Microsoft YaHei",Arial,Helvetica,sans-serif,"微软雅黑";}
a{ text-decoration:none; color:#000;}
img{border:none; vertical-align: middle; display: block; max-width: 100%; height: auto;}
ul,li{list-style:none;}
*{padding:0;margin:0;/* -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;*/}
table{border-collapse:collapse;}
.wrap{ width:100%; height:auto;}

input::-webkit-input-placeholder {color: #333;}
input::-moz-placeholder {color: #333;}
input:-moz-placeholder {color: #333;}
input:-ms-input-placeholder {color: #333;}

input[type="button"], input[type="submit"], input[type="reset"] {-webkit-appearance: none;}
textarea {-webkit-appearance: none;}

.clearfix:before,.clearfix:after {clear: both; content: "."; display: block; height: 0; overflow: hidden; visibility: hidden;}
.clearfix{zoom:1}

/*左侧悬浮*/
.left {width: 150px; height: 371px; padding: 4px 0 0; background: url(../images/left_bg.png) center repeat-x; background-size: auto 100%; position: fixed; top: 20%; left: 0; z-index: 6; border-radius: 0 0 75px 75px;}
.left_a {width: 150px; margin: 0 auto; display: block; background: url(../images/left_001.png) center bottom repeat-x; text-align: center; font-size: 20px; color: #fff; line-height: 48px;}
.left_a:hover {color: #f5d229;}
.left_top {display: block; width: 52px; margin: 12px auto 0;}
.left .close {position: absolute; top: -20px; right: -20px; width: 22px; height: 22px;}

#tp_mn{display:none;}
.dv_mn {display: none;}
#hdr_mn > div {width: 640px;}
#hdr_mn > div > ul > li {width: 90px; font-size: 14px;}
.phone_top {display: none;}

/*banner*/
.ban {width: 100%; height: 564px; background: url(../images/banner.jpg) center no-repeat; background-size: auto 100%; position: relative; z-index: 0; overflow: hidden;}
.ban_a {display: block; width: 100%; height: 100%;}
.ban_ab {width: 100%; position: absolute; top: 0; left: 0;}
.ban_cen {width: 100%; max-width: 1100px; margin: 0 auto;}
.ban_logo {width: 158px; margin: 20px 0 0; float: left;}
.ban_logo img {width: 100%; height: auto;}

.ban_nav {width: 100%; background: #354c8d; margin: 0 auto; text-align: center;}
.ban_na {display: block; width: 16.66%; float: left; margin: 0; font-size: 2em; color: #fff; line-height: 2.8em;}
.ban_na:hover {background: #18295e; color: #d3af76;}

/* 公共css */
.all {width: 100%; padding: 50px 0;}
.all_cen {width: 100%; margin: 0 auto; max-width: 1100px;}
.title {width: 100%; text-align: center;}
.title_p {width: 100%; font-size: 3.8em; color: #344aa0; line-height: 1.4em; font-weight: bold;background: url(../images/title_bg.png) center top no-repeat;padding: .3em 0 0;}
.title_p img {display: inline-block; width: auto; height: 1em; vertical-align: top; margin: .2em 20px 0;}
.title_p .titBg {
    font-size: .5em;
    color: #fff;
    background: url(../images/title_001.png) no-repeat center;
    width: 3.4em;
    display: inline-block;
    text-align: right;
    padding-right: 2.5%;
    height: 2.2em;
    line-height: 2em;
}
.title_p2 {width: 100%; background: url(../images/titXB.png) center no-repeat; font-size: 1.6em; color: #333; line-height: 1.6em; margin: 10px auto 0;}
.main {width: 100%; margin: 36px auto 0;}

.one_t {width: 100%; margin: 0 auto;}
.one_tp {width: 20%; margin: 0; background: url(../images/one_001.png) center no-repeat; background-size: 100% 100%; text-align: center; font-size: 2.2em; color: #fff; line-height: 2em; font-weight: bold; position: relative; z-index: 1;}
.one_tt {width: 100%; margin: -2em auto 0; background: #fff; padding: 3% 0 2%; border-radius: 6px; -webkit-box-shadow: 0 0 18px rgba(171, 196, 239, .4); -moz-box-shadow: 0 0 18px rgba(171, 196, 239, .4); box-shadow: 0 0 18px rgba(171, 196, 239, .4);}
.one_tp2 {width: 90%; margin: 0 auto; font-size: 1.6em; color: #333; line-height: 1.8em; text-indent: 2em; padding: 5px 0;}
.one_tp2 .pbd{font-weight: bold;}
.one_l {width: 49%; float: left; margin: 2% 0 0; background: url(../images/one_002.jpg) center no-repeat; background-size: 100% 100%; z-index: 1; position: relative; padding: 26px 0 16px; border-radius: 10px; -webkit-box-shadow: 0 0 16px rgba(84, 91, 227, .6); -moz-box-shadow: 0 0 16px rgba(84, 91, 227, .6); box-shadow: 0 0 16px rgba(84, 91, 227, .6);}
.one_lp {width: 34%; margin: 0; background: #fff; text-align: center; font-size: 2em; color: #1b2e65; line-height: 1.8em; font-weight: bold; border-radius: 0 1em 1em 0;}
.one_lp span {display: inline-block; width: 2em; background: #caa467; color: #fff; float: left; margin: 0;}
.one_lp2 {width: 90%; margin: 0 auto; padding: 10px 0; font-size: 1.4em; color: #fff; line-height: 1.8em;}
.one_lp3 {
    font-size: 1.5em;
    color: #cfa96d;
    width: 86%;
    text-align: right;
}
.one_r {width: 51%; float: right; margin: 0 0 0 -23%; background: #f0f7ff; border-radius: 10px; padding: 2% 0 3% 23%; z-index: 0;}
.one_rp {width: 100%; text-align: center; font-size: 3em; color: #344aa0; line-height: 1.6em; font-weight: bold;}
.one_rp img {display: inline-block; width: auto; height: .6em; vertical-align: top; margin: .5em 15px 0;}
.one_ul {width: 80%; margin: 16px auto 0;}
.one_li {width: 100%; float: left; margin: 8px 0;}
.one_li input {display: block; width: 90%; height: 1.6em; padding: .4em 3% .4em 7%; background: url(../images/one_005.png) 2% center no-repeat; background-size: auto 45%; border: 1px solid #1670db; font-size: 1.6em; color: #333; line-height: 1.6em; font-family: "微软雅黑"; border-radius: 8px;}
.one_li2 input {background: url(../images/one_006.png) 2% center no-repeat; background-size: auto 45%;}
.one_li3 {width: 100%; float: left; margin: 12px 0 0;}
.one_li3 input {display: block; width: 100%; height: 2.4em; background: url(../images/botton_bg.png) center repeat-y; background-size: 100% auto; border: none; font-size: 2em; color: #fff; line-height: 2.4em; font-family: "微软雅黑"; border-radius: 1.2em; cursor: pointer;}
.one_rp2 {width: 80%; margin: 10px auto 0; font-size: 1.5em; color: #808080; line-height: 1.6em;}

/* BIM应用工程师价值 */
.two {background: url(../images/two_bg.jpg) center repeat-x; background-size: auto 100%;}
.two_tul {width: 100%; margin: 0 auto;}
.two_tli {width: 30.33%; float: left; margin: 0 1.5%; background: #fff; border-radius: 10px; padding: 26px 0; -webkit-box-shadow: 0 0 10px rgba(6, 89, 217, .2); -moz-box-shadow: 0 0 10px rgba(6, 89, 217, .2); box-shadow: 0 0 10px rgba(6, 89, 217, .2);}
.two_tlip {width: 100%; margin: 0 auto; text-align: center; font-size: 2.4em; color: #344aa0; line-height: 1.4em;}
.twi_tlimg {width: 72%; margin: 26px auto 0;}
.two_tlip2 {width: 86%; margin: 20px auto 0; font-size: 1.6em; color: #333; line-height: 1.8em;}
.two_b {width: 100%; margin: 40px auto 0;}
.two_bp {width: 100%; text-align: center; background: url(../images/two_004.png) center no-repeat; background-size: auto 100%; font-size: 2.6em; color: #344aa0; line-height: 2em; font-weight: bold; position: relative; z-index: 1;}
.two_bt {width: 100%; margin: -3.1em auto 0; background: url(../images/two_005.jpg) center no-repeat; background-size: 100% 100%; padding: 7% 0 ; border-radius: 10px; z-index: 0; -webkit-box-shadow: 0 0 16px rgba(84, 91, 227, .6); -moz-box-shadow: 0 0 16px rgba(84, 91, 227, .6); box-shadow: 0 0 16px rgba(84, 91, 227, .6);}
.two_if {display: block; width: 100%; margin: 0 auto; background: none;}
.two_in {width: 100%; margin: 0 auto;}
.two_bul {width: 94%; margin: 0 auto;}
.two_bli {width: 35%; float: left; margin: 0 1%; background: #f2f7ff; border-radius: 10px;}
.two_bli input {display: block; width: 88%; height: 1.6em; padding: .4em 3% .4em 9%; background: url(../images/one_005.png) 2% center no-repeat; background-size: auto 45%; border: none; font-size: 1.6em; color: #333; line-height: 1.6em; font-family: "微软雅黑"; border-radius: 8px;}
.two_bli2 input {background: url(../images/one_006.png) 2% center no-repeat; background-size: auto 45%;}
.two_bli3 {width: 24%; float: left; margin: 0 1%;}
.two_bli3 input {display: block; width: 100%; height: 2em; background: url(../images/botton_bg2.png) center repeat-x; background-size: auto 100%; border: none; font-size: 2em; color: #fff; line-height: 2em; font-weight: bold; font-family: "微软雅黑"; border-radius: 1.2em; cursor: pointer;}

/* BIM应用工程师报考条件 */
.three {padding-bottom: 0;}
.three .all_cen .main {background: url(../images/three_001.jpg) center no-repeat; background-size: 100% 100%; padding: 2% 0; border-radius: 10px; -webkit-box-shadow: 0 0 16px rgba(84, 91, 227, .6); -moz-box-shadow: 0 0 16px rgba(84, 91, 227, .6); box-shadow: 0 0 16px rgba(84, 91, 227, .6);}
.three_table {width: 96%; margin: 0 auto; text-align: center; background: #fff; border: 1px solid #828fc5;}
.three_table th {background: #ecf3ff; font-size: 2em; color: #1b2e65; line-height: 1.4em; padding: 10px 0;}
.three_table td {font-size: 1.6em; color: #333; line-height: 1.6em; padding: 6px 0;}
.three_table td span {display: block;}
.three_b {width: 100%; margin: 30px auto 0;}
.three_bp {width: 100%; text-align: center; background: url(../images/three_002.png) center no-repeat; font-size: 2.6em; color: #fff; line-height: 1.6em; font-weight: bold;}
.three_if {display: block; width: 100%; margin: 40px auto 0;}
.three_bimg {width: 20%; float: left; margin: 0 0 0 5%;}
.three_ul {width: 72%; float: right; margin: 2% 2% 0 0;}
.three_li {width: 48%; float: left; margin: 10px 1%;}
.three_li input {display: block; width: 94%; height: 1.6em; padding: .4em 3%; background: #fff; border: none; font-size: 1.6em; color: #333; line-height: 1.6em; font-family: "微软雅黑"; border-radius: 8px;}
.three_li2 {width: 48%; float: left; margin: 10px 1%;}
.three_li2 input {display: block; width: 100%; height: 2em; border: none; font-size: 2em; color: #fff; line-height: 2em; font-weight: bold; font-family: "微软雅黑"; border-radius: 8px; cursor: pointer;
	background: #ff6669;
	background: -webkit-linear-gradient(left, #ff6669 , #ff4e52); /* Safari 5.1 - 6.0 */
	background: -o-linear-gradient(right, #ff6669 , #ff4e52); /* Opera 11.1 - 12.0 */
	background: -moz-linear-gradient(right, #ff6669 , #ff4e52); /* Firefox 3.6 - 15 */
	background: linear-gradient(to right, #ff6669 , #ff4e52); /* 标准的语法 */
}

/* BIM应用工程师报考流程 */
.four {background: url(../images/four_bg.jpg) center bottom no-repeat;}
.four .all_cen .title .title_p {padding: .15em 0 0; background: url(../images/title_bg4.png) center top no-repeat; color: #fff;}
.four .all_cen .title .title_p2 {background: url(../images/title_bg3.png) center top no-repeat; color: #fff;}
.four_ul {width: 100%; margin: 0 auto; background: url(../images/four_001.png) center 13% no-repeat;}
.four_li {width: 31.33%; float: left; margin: 0 1%;}
.four_limg {width: 38%; margin: 0 auto;}
.four_lit {width: 100%; margin: 20px auto 0; background: url(../images/four_007.png) center repeat-x; background-size: auto 100%; position: relative; padding: 10px 0;}
.four_lits {width: 20px; height: 8px; background: url(../images/four_010.png) center no-repeat; background-size: 100% 100%; display: block; position: absolute; top: -8px; left: 50%; margin-left: -10px;}
.four_lip {width: 100%; text-align: center; margin: 0 auto; font-size: 2.6em; color: #fff; line-height: 2em; font-weight: bold; border-bottom: 1px solid #4a6cdc;}
.four_lip img {display: inline-block; width: auto; height: .4em; vertical-align: top; margin: .84em 10px 0;}
.four_litt {width: 84%; margin: 12px auto 0; background: url(../images/four_008.png) 1% 2em no-repeat; min-height: 200px;}
.four_lip2 {width: 95%; padding: 0 0 0 5%; font-size: 1.6em; color: #d6e0ff; line-height: 2em; position: relative;}
.four_lip2::before {content: ""; display: inline-block; width: .4em; height: .4em; background: #fff; border-radius: 50%; position: absolute; left: 0; top: .8em;}
.four_li2 .four_lit .four_litt,.four_li3 .four_lit .four_litt {background: none;}
.four_li2 .four_lit .four_litt .four_lip2::before {background: url(../images/four_009.png) center no-repeat; border-radius: 0;}
.four_li3 .four_lit .four_litt .four_lip2 {width: 100%; padding: 0;}
.four_li3 .four_lit .four_litt .four_lip2::before {display: none;}
.four_bot {width: 100%; margin: 20px auto 0; background: url(../images/four_011.png) center no-repeat; background-size: 100% 100%; padding: 4% 0 7%;}
.four_bp {width: 100%; text-align: center; font-size: 2.6em; color: #344aa0; line-height: 1.4em; font-weight: bold;}
.four_bp img {display: inline-block; width: auto; height: 1em; vertical-align: top; margin: .4em 15px 0;}
.four_if {display: block; width: 100%; margin: 36px auto 0; background: none;}
.four_in {width: 100%; margin: 0 auto;}
.four_bul {width: 94%; margin: 0 auto;}
.four_bli {width: 35%; float: left; margin: 0 1%;}
.four_bli input {display: block; width: 88%; height: 1.6em; padding: .4em 3% .4em 9%; background: url(../images/one_005.png) 2% center no-repeat; background-size: auto 45%; border: 1px solid #486ff4; font-size: 1.6em; color: #333; line-height: 1.6em; font-family: "微软雅黑"; border-radius: 8px;}
.four_bli2 input {background: url(../images/one_006.png) 2% center no-repeat; background-size: auto 45%;}
.four_bli3 {width: 24%; float: left; margin: 0 1%;}
.four_bli3 input {display: block; width: 100%; height: 2em; background: url(../images/botton_bg2.png) center repeat-y; background-size: 100% auto; border: none; font-size: 2em; color: #fff; line-height: 2em; font-weight: bold; font-family: "微软雅黑"; border-radius: 1.2em; cursor: pointer;}

/* 干货齐上阵，为您的BIM学习之旅加点料！ */
.five {padding-top: 0; background: url(../images/five_bg.jpg) center top no-repeat;}
.five .all_cen .title .title_p {padding: .15em 0 0; background: url(../images/title_bg2.png) center top no-repeat;}
.five .all_cen .main {background: url(../images/botton_bg3.png) center repeat-y; background-size: 100% auto; padding: 4% 0; border-radius: 10px; -webkit-box-shadow: 0 0 16px rgba(84, 91, 227, .6); -moz-box-shadow: 0 0 16px rgba(84, 91, 227, .6); box-shadow: 0 0 16px rgba(84, 91, 227, .6);}
.five_ul {width: 90%; margin: 0 auto;}
.five_li {width: 36%; float: left; margin: 0 3.5%;}
.five_li2 {margin: 9% 5.5% 0;}
.five_lip {width: 100%; margin: 0 auto; font-size: 2.4em; color: #fff; line-height: 2em;}

.form_bot {width: 94%; margin: 10px auto 0; text-align: center; font-size: 1.6em; color: #666; line-height: 1.8em;}
.form_bot span a {color: #344aa0;}
.form_bot label {display: inline-block;}
.form_bot label input {display: inline-block; width: 1.2em; height: 1.2em; background: none; border: none; vertical-align: top; margin: .6em 0 0; position: relative;}
.form_bot label input[type=checkbox]::before {position: absolute; content: ""; top: 0; left: 0; background: #f0f7ff; width: 100%; height: 100%; border: 1px solid #344aa0; border-radius: 2px;}
.form_bot label input[type=checkbox]:checked::before {position: absolute; content: "\2713"; top: 0; left: 0; width: 100%; height: 100%; border: 1px solid #344aa0; border-radius: 2px; color: #344aa0; line-height: 1.2em; font-weight: bold; text-align: center; background: #f0f7ff;}

.three_ul .form_bot {color: #fff;}
.three_ul .form_bot span a {color: #ff6669;}


/*平板*/
@media only screen and (max-width:999px) and (min-width:769px) {

#box-kefu {display: none;}
/*左侧悬浮*/
.left {display: none;}

.hdr_con {width: 100% !important;}
.phone_top {display: none;}
.dv_mn {display: none;}

/*banner*/
.ban  {height: 400px;}
.ban_logo {width: 15%; margin: 15px 0 0 2%; display: block;}

.ban_na {font-size: 1.6em;}

/* 公共css */
.all {padding: 30px 0;}
.all_cen {width: 96%;}
.title_p {width: 100%; font-size: 2.6em;}
.title_p2 {font-size: 1.3em;}
.main {margin: 20px auto 0;}


.one_tp {font-size: 1.8em;}
.one_tp2 {font-size: 1.3em; }
.one_lp {font-size: 1.6em;}
.one_lp2 {font-size: 1.3em;}
.one_rp {font-size: 2em;}
.one_li input {font-size: 1.3em;}
.one_li3 input {font-size: 1.4em;}
.one_rp2 {font-size: 1.3em;}

/* BIM应用工程师价值 */
.two_tlip {font-size: 1.8em;}
.two_tlip2 {font-size: 1.2em; width: 92%;}
.two_bp {font-size: 2em;}
.two_bt {margin: -2.3em auto 0;}
.two_bli input {font-size: 1.3em;}
.two_bli3 input {font-size: 1.4em;}

/* BIM应用工程师报考条件 */
.three {padding-bottom: 0;}
.three_table th {font-size: 1.6em;}
.three_table td {font-size: 1.3em;}
.three_bp {background: none; font-size: 2em;}
.three_if {margin: 20px auto 0;}
.three_li input {font-size: 1.3em;}
.three_li2 input {font-size: 1.4em;}

/* BIM应用工程师报考流程 */
.four {background-size: auto 100%;}
.four_lip {font-size: 2em;}
.four_litt {min-height: 200px;}
.four_lip2 {font-size: 1.3em;}
.four_bp {font-size: 2em;}
.four_bli input {font-size: 1.3em;}
.four_bli3 input {font-size: 1.4em;}

/* 干货齐上阵，为您的BIM学习之旅加点料！ */
.five {padding-top: 0; background-size: auto 100%;}
.five_lip {font-size: 1.8em;}

.pc_bot {display: none;}

}



/*手机*/
@media only screen and (max-width:768px) and (min-width:200px) {

#box-kefu {display: none;}
/*左侧悬浮*/
.left {display: none;}

/*top*/
.zhy {display: none;}
.phone_top {display: block; width: 100%; background: #fff;}
.mn_dv2 { position: fixed; bottom: 0;width: 100%;background: #fff;z-index: 999999;border-top: 1px solid #cfcfcf;}
.nd_mn {margin: auto;overflow: hidden;padding: 10px 0;}
.nd_mn  li {float: left; width: 46%;margin: 0 2%;}
.nd_mn > li > a {margin: 0 2%;border: 1px solid #d0d0d0; border-radius: 3px; padding: 10px;display: block;text-align: center;font-size: 16px;color: #555;background-image: -moz-linear-gradient(top, #fafafa, #dbdbdb);background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #fafafa), color-stop(1, #dbdbdb));filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fafafa', endColorstr='#dbdbdb', GradientType='0');}
.mn_dv {position: fixed; top: 0; width: 100%; background: #fff; z-index: 999999;}
.tp_mn { width: 100%; margin: auto; overflow: hidden; padding: 3px 0;}
.lgn_id { position: absolute; left: 0; top: -200px;}
.tp_mn > li { float: left;width: 25%;}
.tp_mn > li > a {margin: 0 2%; border: 0 solid #fff; border-radius: 3px; padding: 8px; display: block; text-align: center; font-size: 14px; color: #fff; background: #03b7e8;}

/*banner*/
.ban {height: 196px;}
.ban_logo {width: 24%; margin: 6px 0 0 5px; display: block;}

.ban_nav {display: none;}

/* 公共css */
.all {padding: 20px 0;}
.all_cen {width: 96%;}
.title_p {font-size: 1.8em;}
.title_p img {display: none;}
.title_p .titBg{display: none;}
.one_lp3 {
    font-size: 1.2em;
    width: 92%;
}
.title_p2 {background: none; font-size: 1.2em; margin: 6px auto 0;}
.main {margin: 15px auto 0;}

.one_tp {width: 40%; font-size: 1.5em;}
.one_tt {margin: -1.2em auto 0; padding: 5% 0 3%;}
.one_tp2 {font-size: 1.2em; padding: 3px 0;}
.one_l {width: 100%; margin: 0; padding: 16px 0;}
.one_lp {width: 45%; font-size: 1.4em;}
.one_lp2 {font-size: 1.2em;}
.one_r {width: 100%; margin: 10px 0; padding: 3% 0;}
.one_rp {font-size: 1.6em;}
.one_rp img {margin: .5em 8px 0;}
.one_ul {width: 90%; margin: 10px auto 0;}
.one_li input {width: 89%; padding: .4em 3% .4em 8%; font-size: 1.2em;}
.one_li3 input {font-size: 1.3em;}
.one_rp2 {width: 90%; font-size: 1.2em;}

/* BIM应用工程师价值 */
.two_tli {width: 96%; height: auto; margin: 6px 2%;}
.two_tlip {font-size: 1.6em;}
.twi_tlimg {width: 50%; margin: 16px auto 0;}
.twi_tlimg img {width: 100%; height: auto;}
.two_tlip2 {margin: 10px auto 0; font-size: 1.2em;}
.two_b {margin: 10px auto 0;}
.two_bp {font-size: 1.5em; background-size: 94% 100%;}
.two_bt {margin: -1.8em auto 0; padding: 9% 0 4%;}
.two_bul {width: 90%;}
.two_bli {width: 100%; margin: 6px 0;}
.two_bli input {width: 89%; padding: .4em 3% .4em 8%; font-size: 1.2em;}
.two_bli3 {width: 100%; margin: 6px 0 0;}
.two_bli3 input {font-size: 1.3em;}

/* BIM应用工程师报考条件 */
.three {padding-bottom: 0;}
.three .all_cen .title .title_p {padding: .15em 0 0; background-size: auto 50%;}
.three_table th {font-size: 1.2em;}
.three_table td {font-size: 1.1em;}
.three_b { margin: 15px auto 0;}
.three_bp {background: none; font-size: 1.5em;}
.three_if {margin: 10px auto 0;}
.three_bimg {display: none;}
.three_ul {width: 90%; margin: 0 5%;}
.three_li {width: 100%; margin: 6px 0;}
.three_li input {font-size: 1.2em;}
.three_li2 {width: 100%; margin: 6px 0 0;}
.three_li2 input {font-size: 1.3em;}

/* BIM应用工程师报考流程 */
.four {background-size: auto 100%;}
.four .all_cen .title .title_p {background-size: auto 50%;}
.four .all_cen .title .title_p2 {background: none;}
.four_ul {background: none;}
.four_li {width: 31.33%; float: left; margin: 0 1%;}
.four_limg {width: 50%;}
.four_lit {margin: 15px auto 0;}
.four_lip {font-size: 1.5em;}
.four_lip img {display: none;}
.four_litt {width: 90%; background: none; min-height: auto;}
.four_lip2 {width: 100%; padding: 0; font-size: 1.2em; line-height: 1.6em; word-wrap: break-word;}
.four_lip2::before {display: none;}
.four_bot {margin: 15px auto 0; background: #fff; padding: 10px 0; -webkit-box-shadow: 0 0 10px rgba(188, 201, 244, .5); -moz-box-shadow: 0 0 10px rgba(188, 201, 244, .5); box-shadow: 0 0 10px rgba(188, 201, 244, .5);}
.four_bp {font-size: 1.5em;}
.four_bp img {display: none;}
.four_if {margin: 10px auto 0;}
.four_bul {width: 90%;}
.four_bli {width: 100%; margin: 6px 0;}
.four_bli input {width: 89%; padding: .4em 3% .4em 8%; font-size: 1.2em;}
.four_bli3 {width: 100%; margin: 6px 0 0;}
.four_bli3 input {font-size: 1.3em;}

/* 干货齐上阵，为您的BIM学习之旅加点料！ */
.five {padding-top: 0; background-size: auto 100%;}
.five .all_cen .title .title_p {padding: .15em 0 0; background-size: auto 25%;}
.five_ul {width: 96%;}
.five_li {width: 40%; float: left; margin: 0 1%;}
.five_li2 {margin: 9% 1% 0;}
.five_lip {font-size: 1.2em; text-align: center;}

.form_bot {margin: 10px auto 0; font-size: 1.2em;}
.form_bot label input {width: 1em; height: 1em; margin: .4em 0 0;}

.pc_bot {display: none;}

}