@charset "UTF-8";
body,html{background-color:#fff}
.header div{height:72px;background:url(../img/logo.png?v=bBgEpbtqepj07KqLVZrf%2BA%3D%3D) no-repeat left center}
.page1{height:586px;background:linear-gradient(141deg,#7b26ea 0,#685ffd 37%,#5555fd 100%,#5555fd 100%)}
.page1>div{position:relative;height:606px;background-image:url(https://lboc-static.dfub.cn/ycjh/math_part1_1.png?v=2020-10-21);background-repeat:no-repeat;background-position:center center;background-size:1920px 606px}
.page1>div .btn_box{position:absolute;top:340px;right:50%;margin-right:-140px;width:634px;height:70px;background:-webkit-gradient(linear,left top,left bottom,from(#ffee8d),to(#ffd854));background:linear-gradient(180deg,#ffee8d 0,#ffd854 100%);-webkit-box-shadow:0 2px 4px 0 #4444dc,0 1px 5px 0 #fff;box-shadow:0 2px 4px 0 #4444dc,0 1px 5px 0 #fff;border-radius:40px;overflow:hidden}
.page1>div .btn_box>p:nth-of-type(1){margin:23px 10px 0 30px;background-repeat:no-repeat}
.page1>div .btn_box>p:nth-of-type(2){height:100%;line-height:70px;color:#333;font-size:24px;font-weight:700}
.page1>div .btn_box .btn{position:relative;width:195px;height:70px;background:#ff482f;-webkit-box-shadow:0 1px 5px 0 #fff;box-shadow:0 1px 5px 0 #fff;border-radius:40px;color:#fff;text-align:center;font-size:24px;line-height:70px;cursor:pointer;-webkit-transition:all .2s;transition:all .2s}
.page1>div .btn_box .btn:hover{background:#f52d11}
.page1>div .btn_box .btn::before{content:"去领取";display:block;position:absolute;top:0;left:55px}
.page1>div .btn_box .btn::after{content:"";display:block;position:absolute;top:26px;right:45px;width:12px;height:17px;background:url(../img/math_part1_3.png?v=Tt9wHIUljPJtvF8Bm95eyA%3D%3D) no-repeat center center;background-size:12px 17px}
.page2{padding-top:1px;height:540px;position:relative}
.page2::before{content:"";display:block;position:absolute;top:94px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page2 ul{text-align:center;margin-top:255px;padding-top:1px}
.page2 ul li{position:relative;display:inline-block;margin:0 68px;padding-top:55px;width:170px;height:170px;border:2px solid #5555fd;border-radius:50%;font-size:24px;font-weight:700;color:#5555fd;-webkit-box-sizing:border-box;box-sizing:border-box}
.page2 ul li::before{content:"";display:block;position:absolute;bottom:36px;left:68px}
.page3{position:relative;padding-top:1px;height:1239px;background:#5555fd}
.page3::before{content:"";display:block;position:absolute;top:65px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page3>div{position:relative;margin-top:-40px;height:1304px;background-image:url(https://lboc-static.dfub.cn/ycjh/math_part3_1.png?v=2020-10-21);background-repeat:no-repeat;background-position:center center;background-size:1920px 1304px}
.page3>div::before{content:"";display:block;position:absolute;top:-36px;left:50%;margin-left:440px;margin-top:-47px}
.page3>div::after{content:"";display:block;position:absolute;top:-36px;left:50%;margin-left:-630px;margin-top:-25px}
.page3>div div{position:absolute;width:280px;top:50%;left:50%}
.page3>div div p:nth-of-type(1){height:48px;font-size:24px;font-weight:600;color:#ff3c21;line-height:40px}
.page3>div div p:nth-of-type(2){margin-top:10px;font-size:20px;font-weight:400;color:#424242;line-height:40px}
.page3>div div:nth-of-type(1){-webkit-transform:translate(-137px,-347px);transform:translate(-137px,-347px)}
.page3>div div:nth-of-type(2){-webkit-transform:translate(-513px,-208px);transform:translate(-513px,-208px)}
.page3>div div:nth-of-type(3){-webkit-transform:translate(246px,-206px);transform:translate(246px,-206px)}
.page3>div div:nth-of-type(4){-webkit-transform:translate(-515px,80px);transform:translate(-515px,80px)}
.page3>div div:nth-of-type(5){-webkit-transform:translate(247px,82px);transform:translate(247px,82px)}
.page3>div div:nth-of-type(6){-webkit-transform:translate(-141px,332px);transform:translate(-141px,332px)}
.page4{padding-top:1px;height:1000px;position:relative}
.page4::before{content:"";display:block;position:absolute;top:65px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page4 ul{text-align:center;margin-top:180px;padding-top:1px}
.page4 ul li{position:relative;display:inline-block;margin:0 17px;padding-top:328px;-webkit-box-sizing:border-box;box-sizing:border-box;width:379px;height:601px}
.page4 ul li div.name{margin-left:32px;width:126px;height:52px;font-size:24px;text-align:center;font-weight:600;color:#333;line-height:52px}
.page4 ul li p{padding-left:60px;color:#424242;text-align:left;font-size:20px;line-height:40px}
.page4 ul li p:nth-of-type(1){margin-top:25px;font-weight:600}
.page4 ul li:nth-of-type(1){background-image:url(../img/math_part4_2.png?v=NzPWs9J9%2BdfAbd070pKY%2Bw%3D%3D)}
.page4 ul li:nth-of-type(2){background-image:url(../img/math_part4_3.png?v=vOLZXm5Odvx9U4RYomGH3A%3D%3D)}
.page4 ul li:nth-of-type(2) div.name{margin-left:40px}
.page4 ul li:nth-of-type(3){background-image:url(../img/math_part4_4.png?v=MByENX6Se9CybrjJTnFscg%3D%3D)}
.page4 button{margin:58px auto 0;display:block;width:560px;height:88px;background:#ff482f;-webkit-box-shadow:2px -1px 6px 0 rgba(255,255,255,.5);box-shadow:2px -1px 6px 0 rgba(255,255,255,.5);border-radius:44px;font-size:36px;font-weight:600;color:#fff;cursor:pointer;-webkit-transition:all .2s;transition:all .2s}
.page4 button:hover{background:#f52d11}
.page5{padding-top:1px;height:600px;background-color:#5555fd;position:relative}
.page5::before{content:"";display:block;position:absolute;top:90px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page5>div{position:relative;margin-top:-16px;padding-top:1px;height:632px;background-image:url(../img/math_part5_1.png?v=Muo7taUUwKriFwHrVMuLrg%3D%3D);background-repeat:no-repeat;background-position:center center;background-size:1920px 633px}
.page5>div ul{position:relative;text-align:center;margin-top:295px;padding-top:1px}
.page5>div ul li{display:inline-block;width:250px;margin:0 64px}
.page5>div ul li p:nth-of-type(1){font-size:24px;font-weight:600;color:#ff482f;line-height:42px}
.page5>div ul li p:nth-of-type(2){margin-top:50px;font-size:20px;color:#fff;line-height:40px}
.page6{padding-top:1px;height:500px;position:relative}
.page6::before{content:"";display:block;position:absolute;top:80px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page6 ul{text-align:center;margin-top:220px;padding-top:1px}
.page6 ul li{position:relative;display:inline-block;margin:0 17px;padding-left:114px;padding-top:48px;width:340px;height:181px;background:linear-gradient(178deg,#fffdf4 0,#f7f7ff 100%);-webkit-box-shadow:0 2px 4px 0 #d0d0d0,0 1px 5px 0 #fff;box-shadow:0 2px 4px 0 #d0d0d0,0 1px 5px 0 #fff;border-radius:16px;font-size:24px;font-weight:600;color:#333;line-height:42px;text-align:left;-webkit-box-sizing:border-box;box-sizing:border-box}
.page6 ul li::before{content:"";display:block;position:absolute;top:54px;left:30px}
.page7{padding-top:1px;height:846px;background-color:#5555fd;position:relative}
.page7::before{content:"";display:block;position:absolute;top:90px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page7>div{position:relative;margin-top:-37px;padding-top:1px;height:882px;background-image:url(../img/math_part7_1.png?v=QsDR9I75rFHByvFqnzgdQQ%3D%3D);background-repeat:no-repeat;background-position:center center;background-size:1920px 885px}
.page7>div>div{width:1104px;margin:290px auto 0}
.page7>div>div .part7_table_lie_1{width:154px;-webkit-box-sizing:border-box;box-sizing:border-box}
.page7>div>div .part7_table_lie_2{width:950px;-webkit-box-sizing:border-box;box-sizing:border-box}
.page7>div>div .part7_table_title div{height:103px;background:-webkit-gradient(linear,left top,left bottom,from(#ffee8d),to(#ffd854));background:linear-gradient(180deg,#ffee8d 0,#ffd854 100%);-webkit-box-shadow:0 2px 4px 0 #fec576,0 1px 5px 0 #fff;box-shadow:0 2px 4px 0 #fec576,0 1px 5px 0 #fff;border-radius:24px 24px 0 0;font-size:24px;text-align:center;line-height:103px;position:relative}
.page7>div>div .part7_table_title div:nth-of-type(1)::before{content:"";display:block;position:absolute;bottom:0;right:0;width:1px;height:83px;background-color:#fff}
.page7>div>div ul{position:relative}
.page7>div>div ul::before{content:"";display:block;position:absolute;bottom:-20px;right:-26px;z-index:10}
.page7>div>div ul>li{position:relative;border-bottom:1px solid #ff5c26;-webkit-box-sizing:border-box;box-sizing:border-box}
.page7>div>div ul>li>div{float:left;position:relative;height:100%}
.page7>div>div ul>li>div>span{display:block;position:absolute;width:100%;top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%)}
.page7>div>div ul>li>div:nth-of-type(1){text-align:center;font-size:20px;line-height:45px;color:#333;position:relative;border-right:1px solid #ff5c26;-webkit-box-sizing:border-box;box-sizing:border-box}
.page7>div>div ul>li>div:nth-of-type(2){text-align:left;font-size:20px;color:#424242;line-height:45px}
.page7>div>div ul>li>div:nth-of-type(2)>span{padding-left:45px;-webkit-box-sizing:border-box;box-sizing:border-box;padding-right:50px}
.page7>div>div ul li:nth-of-type(1){height:124px;background-color:#f5f5ff}
.page7>div>div ul li:nth-of-type(2){height:115px;background-color:#fffef5}
.page7>div>div ul li:nth-of-type(3){height:130px;background-color:#f5f5ff;border-radius:0 0 24px 24px;border-bottom:0}
.page8{padding-top:1px;height:450px;position:relative}
.page8::before{content:"";display:block;position:absolute;top:80px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page8 ul{text-align:center;margin-top:220px;padding-top:1px}
.page8 ul li{position:relative;display:inline-block;margin:0 8px;border-radius:8px;-webkit-box-shadow:0 0 10px -2px rgba(0,0,0,.1);box-shadow:0 0 10px -2px rgba(0,0,0,.1)}
.page9{padding-top:1px;height:864px;background-color:#5555fd;position:relative}
.page9::before{content:"";display:block;position:absolute;top:115px;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);z-index:10}
.page9>div{position:relative;margin-top:-5px;padding-top:1px;height:868px;background-image:url(../img/math_part9_1.png?v=uXKoLQfCD9bpzCJwB3dEuw%3D%3D);background-repeat:no-repeat;background-position:center center;background-size:1920px 869px}
.page9>div .page9-swiper.swiper-container{margin:270px auto 0;width:1040px;height:400px}
.page9>div .page9-swiper.swiper-container .swiper-slide{height:390px}
.page9>div .page9-swiper.swiper-container .swiper-slide img{display:block;position:absolute;left:3px;top:25px;width:296px;height:289px}
.page9>div .page9-swiper.swiper-container .swiper-slide .swiper-slide-box{margin-right:3px;padding-left:210px;padding-top:25px;width:914px;height:391px;-webkit-box-sizing:border-box;box-sizing:border-box;background:linear-gradient(178deg,#fffdf4 0,#f7f7ff 100%);-webkit-box-shadow:0 2px 4px 0 #d0d0d0,0 1px 5px 0 #fff;box-shadow:0 2px 4px 0 #d0d0d0,0 1px 5px 0 #fff;border-radius:24px}
.page9>div .page9-swiper.swiper-container .swiper-slide .swiper-slide-box>div:nth-of-type(1) p:nth-of-type(1){position:relative;width:172px;height:40px}
.page9>div .page9-swiper.swiper-container .swiper-slide .swiper-slide-box>div:nth-of-type(1) p:nth-of-type(1) span{display:block;position:relative;z-index:10;line-height:40px;font-size:24px;font-weight:600;color:#292929;text-align:center}
.page9>div .page9-swiper.swiper-container .swiper-slide .swiper-slide-box>div:nth-of-type(1) p:nth-of-type(1)::before{content:"";display:block;position:absolute;width:100%;height:22px;background-color:#ffe980;left:0;bottom:0;z-index:9}
.page9>div .page9-swiper.swiper-container .swiper-slide .swiper-slide-box>div:nth-of-type(1) p:nth-of-type(2){margin-left:22px;margin-top:8px;font-size:20px;color:#292929;line-height:33px}
.page9>div .page9-swiper.swiper-container .swiper-slide .swiper-slide-box>div:nth-of-type(2){margin-top:20px;width:660px;height:277px;font-size:20px;font-weight:400;color:#424242;line-height:40px}
.page9>div .swiper-button-prev{left:50%;margin-left:-595px;margin-top:28px;border-radius:50%}
.page9>div .swiper-button-prev::after{content:""}
.page9>div .swiper-button-next{right:50%;margin-right:-595px;margin-top:28px;border-radius:50%}
.page9>div .swiper-button-next::after{content:""}
.page10{position:fixed;left:0;right:0;bottom:-110px;z-index:99;width:100%;height:100px;background:linear-gradient(179deg,#f5f5ff 0,#e8e8ff 100%);-webkit-box-shadow:0 -2px 6px 0 rgba(248,248,249,.5);box-shadow:0 -2px 6px 0 rgba(248,248,249,.5);-webkit-transition:all .1s;transition:all .1s}
.page10.on{bottom:0}
.page10>div{position:relative;height:100px}
.page10>div i{position:absolute;display:block;bottom:0;left:90px}
.page10>div p{text-align:center;padding-top:28px;font-size:30px;font-weight:400;color:#333;line-height:42px}
.page10>div p span{font-weight:800;color:#f75c47;font-size:35px}
.page10>div button{position:absolute;display:block;right:155px;top:17px;width:220px;height:64px;background:#ff482f;-webkit-box-shadow:2px -1px 6px 0 rgba(255,255,255,.5);box-shadow:2px -1px 6px 0 rgba(255,255,255,.5);border-radius:40px;font-size:30px;font-weight:600;color:#fff;cursor:pointer;-webkit-transition:all .2s;transition:all .2s}
.page10>div button:hover{background:#f52d11}
.bg-math_part1_3{width:12px;height:17px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -427px -160px}
.bg-math_part2_2,.page2 ul li::before{width:34px;height:27px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -86px -303px}
.bg-math_part3_2,.page3>div::before{width:274px;height:175px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -10px -10px}
.bg-math_part3_3,.page3>div::after{width:145px;height:130px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -304px -10px}
.bg-math_part6_2,.page6 ul li:nth-of-type(1)::before{width:67px;height:71px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -292px -205px}
.bg-math_part6_3,.page6 ul li:nth-of-type(2)::before{width:72px;height:72px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -108px -205px}
.bg-math_part6_4,.page6 ul li:nth-of-type(3)::before{width:72px;height:72px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -200px -205px}
.bg-math_part7_2,.page7>div>div ul::before{width:78px;height:78px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -10px -205px}
.bg-math_part9_2{width:56px;height:56px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -379px -205px}
.bg-math_part9_3{width:56px;height:56px;background:url(../img/math_bg_icon.png?v=H12lc9%2FEWS86yAk4z%2FSFXw%3D%3D) -10px -303px}
.easemobim-chat-panel #em-widgetPopBar{display:none!important}
.bg-math_part1_2,.page1>div .btn_box>p:nth-of-type(1){width:103px;height:23px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -783px -128px;background-size:1033px 775px}
.bg-math_part2_1,.page2::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -204px;background-size:1033px 775px}
.bg-math_part3_4,.page3::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -5px;background-size:1033px 775px}
.bg-math_part4_1,.page4::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -300px;background-size:1033px 775px}
.bg-math_part5_2,.page5::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -396px;background-size:1033px 775px}
.bg-math_part6_1,.page6::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -492px;background-size:1033px 775px}
.bg-math_part7_3,.page7::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -588px;background-size:1033px 775px}
.bg-math_part8_1,.page8::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -684px;background-size:1033px 775px}
.bg-math_part9_4,.page9::before{width:768px;height:86px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -5px -107px;background-size:1033px 775px}
.bg-math_part10_1,.page10>div i{width:245px;height:113px;background:url(../img/bg-math-2x.png?v=3vSMt%2F48bYH7T8M5Pns%2BGA%3D%3D) -783px -5px;background-size:1033px 775px}