.sub-nav {
 margin: 28px 0;
 color: #C3C4C4;
}

.sub-nav a:nth-child(1) {
 color: #000;
}

.sub-nav>a:nth-child(1):hover {
 color: #FF793F;
 text-decoration: underline;
}

#column-1 {
 color: #fff;
 background: url('https://bdn.135editor.com/files/201906/x48nceynJweI.png') no-repeat center;
 background-size: cover;
}

.column-1-mask {
 width: 100%;
 background-color: rgba(0, 0, 0, .65);
 padding: 35px 48px 30px 48px;
}

.column-1-content {
 width: 622px;
}

.column-1-content>h2 {
 color: #fff;
 font-weight: bold;
 font-size: 24px;
 margin-bottom: 20px;
}

.column-1-msg {
 margin-bottom: 30px;
}

.column-1-price {
 margin-bottom: 20px;
}

.column-1-now-price {
 font-size: 30px;
 color: #E7673B;
}

.column-1-now-price i {
 font-size: 14px;
 font-style: normal;
}

.column-1-original-price {
 text-decoration: line-through;
 margin-left: 8px;
}

.column-1-btn a:nth-child(1) {
 color: #fff;
 font-size: 16px;
 display: inline-block;
 padding: 0 25px;
 height: 32px;
 line-height: 32px;
 border-radius: 5px;
 transition: all 1s;
 background: -webkit-linear-gradient(left, #FF793F, #FC654E);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #FF793F, #FC654E);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #FF793F, #FC654E);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #FF793F, #FC654E);
 /* 标准的语法（必须放在最后） */
}

.column-1-btn a:nth-child(1):hover {
 background: -webkit-linear-gradient(left, #FC654E, #FF793F);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #FC654E, #FF793F);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #FC654E, #FF793F);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #FC654E, #FF793F);
 /* 标准的语法（必须放在最后） */
}

.column-1-btn a:nth-child(2) {
 margin-left: 20px;
 color: #B9774B;
 font-size: 16px;
 display: inline-block;
 padding: 0 25px;
 height: 32px;
 line-height: 32px;
 border-radius: 5px;
 transition: all 1s;
 background: -webkit-linear-gradient(left, #F4E3CD, #EBCAA7);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #F4E3CD, #EBCAA7);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #F4E3CD, #EBCAA7);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #F4E3CD, #EBCAA7);
 /* 标准的语法（必须放在最后） */
}

.column-1-btn a:nth-child(2):hover {
 background: -webkit-linear-gradient(left, #EBCAA7, #F4E3CD);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #EBCAA7, #F4E3CD);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #EBCAA7, #F4E3CD);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #EBCAA7, #F4E3CD);
 /* 标准的语法（必须放在最后） */
}

.column-1-btn a:nth-child(2) img {
 margin-right: 8px;
 vertical-align: unset;
}

#column-2 {
 padding: 0 15px;
 background-color: #fff;
 overflow: hidden;
 margin-bottom: 100px;
}

.column-2-wrapper {
 padding: 20px 25px 24px 25px;
 border-bottom: 1px solid #eee;
}

.column-2-wrapper:last-child {
 margin-bottom: 100px;
}

.column-2-title {
 font-size: 18px;
 color: #000;
 font-weight: bold;
 margin-bottom: 6px;
 letter-spacing: 1px;
}

.column-2-msg {
 font-size: 14px;
 color: #888;
}

.column-2-list {
 display: flex;
}

.column-2-img {
 overflow: hidden;
}

.column-2-img img {
 width: 270px;
 height: 150px;
}

.column-2-img>a {
 display: block;
 transition: all 1s;
}

.column-2-img>a:hover {
 transform: scale(1.15);
}

.column-2-content {
 margin-left: 25px;
 min-width: 755px;
}

.column-2-tit {
 margin-bottom: 20px;
}

.column-2-tit>a {
 font-size: 18px;
 color: #000;
 white-space: nowrap;
 overflow: hidden;
 text-overflow: ellipsis;
 max-width: 700px;
 display: block;
}

.column-2-name {
 font-size: 14px;
 color: #999;
 margin-bottom: 43px;
 white-space: nowrap;
 overflow: hidden;
 text-overflow: ellipsis;
 max-width: 700px;
}

.column-2-tips {
 overflow: hidden;
}

.column-2-price {
 font-size: 24px;
 color: #ed4635;
}

.column-2-buy {
 float: right;
 color: #fff;
 font-size: 16px;
 padding: 0 25px;
 height: 32px;
 line-height: 32px;
 border-radius: 5px;
 transition: all 1s;
 background: -webkit-linear-gradient(left, #FF793F, #FC654E);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #FF793F, #FC654E);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #FF793F, #FC654E);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #FF793F, #FC654E);
}

.column-2-buy:hover {
 color: #fff;
 background: -webkit-linear-gradient(left, #FC654E, #FF793F);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #FC654E, #FF793F);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #FC654E, #FF793F);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #FC654E, #FF793F);
 /* 标准的语法（必须放在最后） */
}

#my-course-coupon {
 width: 1000px;
 position: fixed;
 top: 50%;
 left: 50%;
 transform: translate(-50%, -50%);
 background-color: rgba(0, 0, 0, .75);
 height: 600px;
 border-radius: 20px;
 z-index: 9999;
 padding: 20px;
 overflow-y: auto;
 box-shadow: 0 0 8px #e8eaec;
 display: none;
}

.my-course-coupon-close {
 color: #fff;
 font-size: 16px;
 line-height: 26px;
 text-align: right;
 margin-bottom: 28px;
}

.my-course-coupon-close>span {
 cursor: pointer;
 background: -webkit-linear-gradient(left, #FF793F, #FC654E);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #FF793F, #FC654E);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #FF793F, #FC654E);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #FF793F, #FC654E);
 padding: 0 10px;
 border-radius: 5px;
 display: inline-block;
}

.my-course-coupon-close>span:hover {
 background: -webkit-linear-gradient(left, #FC654E, #FF793F);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(right, #FC654E, #FF793F);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(right, #FC654E, #FF793F);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(to right, #FC654E, #FF793F);
 /* 标准的语法（必须放在最后） */
}

.my-course-coupon-card {
 border-radius: 10px;
 overflow: hidden;
 display: flex;
 margin-bottom: 28px;
 transition: all .1s;
 background-color: #fff;
 cursor: pointer;
}

.my-course-coupon-card:hover {
 box-shadow: 0 0 8px #e8eaec;
}

.my-course-coupon-left {
 text-align: center;
 width: 190px;
 height: 110px;
 border-radius: 10px;
 background: -webkit-linear-gradient(120deg, #FB8843, #EF5763);
 /* Safari 5.1 - 6.0 */
 background: -o-linear-gradient(120deg, #FB8843, #EF5763);
 /* Opera 11.1 - 12.0 */
 background: -moz-linear-gradient(120deg, #FB8843, #EF5763);
 /* Firefox 3.6 - 15 */
 background: linear-gradient(120deg, #FB8843, #EF5763);
 /* 标准的语法（必须放在最后） */
}

.my-course-coupon-1 {
 color: #fff;
 font-size: 36px;
}

.my-course-coupon-1>i {
 font-style: normal;
 font-size: 20px;
}

.my-course-coupon-2 {
 font-size: 14px;
 color: #fff;
}

.my-course-coupon-3 {
 color: #9e373b;
}

.my-course-coupon-right {
 text-align: center;
 color: #999;
 width: 180px;
 padding-top: 34px;
 position: relative;
}

.my-course-coupon-right>.tips {
 position: absolute;
 right: -23px;
 top: 11px;
 transform: rotate(40deg);
 -ms-transform: rotate(40deg);
 /* IE 9 */
 -moz-transform: rotate(40deg);
 /* Firefox */
 -webkit-transform: rotate(40deg);
 /* Safari 和 Chrome */
 -o-transform: rotate(40deg);
 /* Opera */
}
#pay-code-mode {
 position: fixed;
 top: 0;
 left: 0;
 width: 100%;
 height: 100%;
 background: rgba(0, 0, 0, .5);
 display: none;
 z-index: 9999999;
 cursor: pointer;
 text-align: center;
}

.pay-code-box {
 position: absolute;
 top: 50%;
 left: 50%;
 transform: translate(-50%, -50%);
 background: #fff;
 border-radius: 16px;
/*  box-shadow: 0 0 15px 2px #ff7c2c; */
 padding: 35px;
 min-width: 370px;
 font-size: 17px;
 cursor: default;
}

.pay-code-btn {
 text-decoration: underline;
 cursor: pointer;
}

.pay-code-pic {
 position: relative;
}

.pay-code-pic .img1 {
 width: 160px;
}

.pay-code-pic .img2 {
 position: absolute;
 top: 50%;
 left: 50%;
 transform: translate(-50%, -50%);
 background: rgba(0, 0, 0, .8);
 cursor: pointer;
 display: none;
}

.pay-code-pic .img2 img {
 display: block;
 width: 160px;
 height: 160px;
}

.pay-code-pic .img2:hover img {
 animation: rot 3s linear 0s infinite normal;
}

@keyframes rot {
 from {
  transform: rotate(0);
 }

 to {
  transform: rotate(360deg);
 }
}

.coupon-box {
 position: absolute;
 top: 50%;
 left: 50%;
 transform: translate(-50%, -50%);
 background-color: rgba(0, 0, 0, .75);
 border-radius: 16px;
 box-shadow: 0 0 8px #e8eaec;
 padding: 35px;
 width: 800px;
 height: 600px;
 font-size: 14px;
 cursor: default;
 color: #fff;
 display: none;
}

.coupon-box h1 {
 color: #fff;
}

.coupon-card-box {
 overflow-y: auto;
 max-height: 400px;
}

.no-coupon {
 display: block;
 margin: 113px auto 0;
}

.coupon-card {
 border-radius: 6px;
 overflow: hidden;
 display: flex;
 transition: all .1s;
 background-color: #fff;
 cursor: pointer;
 line-height: 1.5em;
}

.coupon-card.disable-coupon-card {
 cursor: not-allowed;
}

.coupon-card.disable-coupon-card .coupon-left {
 background: #999;
}

.coupon-card.disable-coupon-card .coupon-3 {
 color: #333;
}

.select-coupon-card:hover {
 box-shadow: 0 0 8px #e8eaec;
}

.coupon-card.active .coupon-left {
 background: -webkit-linear-gradient(120deg, #EF5763, #FB8843);
 background: -o-linear-gradient(120deg, #EF5763, #FB8843);
 background: -moz-linear-gradient(120deg, #EF5763, #FB8843);
 background: linear-gradient(120deg, #EF5763, #FB8843);
}

.coupon-card.active .coupon-active {
 display: block;
}

.coupon-close {
 position: absolute;
 right: 10px;
 top: 10px;
 width: 60px;
 height: 40px;
 font-size: 18px;
 cursor: pointer;
}

.coupon-close:hover {
 text-shadow: 0 0 10px #fff;
 transform: scale(1.2);
}

.coupon-left {
 padding-top: 10px;
 text-align: center;
 width: 40%;
 height: 90px;
 border-radius: 6px;
 background: -webkit-linear-gradient(120deg, #FB8843, #EF5763);
 background: -o-linear-gradient(120deg, #FB8843, #EF5763);
 background: -moz-linear-gradient(120deg, #FB8843, #EF5763);
 background: linear-gradient(120deg, #FB8843, #EF5763);
}

.coupon-1 {
 color: #fff;
 font-size: 18px;
}

.coupon-1>i {
 font-style: normal;
}

.coupon-2 {
 color: #fff;
 font-size: 12px;
}

.coupon-3 {
 color: #9e373b;
}

.coupon-right {
 text-align: center;
 color: #999;
 width: 60%;
 padding-top: 20px;
 position: relative;
}

.coupon-active {
 display: none;
 position: absolute;
 bottom: 0;
 right: 0;
}

.coupon-user-btn {
 position: absolute;
 bottom: 40px;
 left: 0;
 width: 100%;
}

.coupon-user-true {
 background: #ff7c2c;
 padding: 5px 10px;
 border-radius: 6px;
 letter-spacing: 1px;
 cursor: pointer;
 font-size: 18px;
}

.coupon-user-true:hover {
 text-shadow: 0 0 10px #e8eaec;
}

.buy-the-course {
 cursor: pointer;
}