.m1 {
    padding: 100px 0 80px;
    border-bottom: 1px solid #dddddd;
}

.plant-head {
    margin-bottom: 15px;
}

.plant-title {
    font-size: 30px;
    font-weight: 500;
    line-height: 72px;
    position: relative;
}

.plant-title .en {
    position: absolute;
    left: -102px;
    font-size: 80px;
    color: #eee;
    font-family: 'Arial';
    font-weight: 600;
    top: 0;
    z-index: -1;
}

.plant-back {
    font-size: 16px;
    background-color: #ccc;
    line-height: 30px;
    height: 30px;
    width: 180px;
    text-align: center;
    color: #fff;
    border-radius: 15px;
    margin-top: 15px;
}

.plant-back:hover {
    color: #fff;
}

.plant-anli {
    width: 670px;
    padding: 20px 20px 35px;
    box-sizing: border-box;
    height: 415px;
    background: #f5f5f5;
    background-position: 20px 20px;
    position: relative;
}

.slideCase .hd {
    position: absolute;
    bottom: 12px;
    right: 10px;
    font-size:0;
}

.slideCase .hd ul {
    display: flex;
}

.slideCase .hd ul li {
    width: 10px;
    height: 10px;
    background-color: #ccc;
    border-radius: 50%;
    margin-right: 10px;
    cursor: pointer;
}

.slideCase .hd ul li.on {
    background-color: #4cbbb4;
}

.case-video {
    width: 630px;
    height: 355px;
    background-color: #fff;
}

.slideCase .bd ul li {
    display: flex;
    position: relative;
}

.case-des {
    position: absolute;
    top: 70px;
    right: 31px;
    width: 295px;
}

.case-block {
    height: 60px;
    display: flex;
    align-items: center;
    background-color: #ccc;
}

.case-block:nth-child(1) {
    border-bottom: 1px solid #f0f0f0;
}

.case-block:nth-child(2) {
    margin-bottom: 10px;
}

.case-block .name {
    width: 66px;
    font-size: 18px;
    color: #fff;
    text-align: center;
    margin-right: 10px;
    background-color: #aaaaaa;
    line-height: 60px;
}

.case-block .des {
    font-size: 16px;
    color: #fff;
    line-height: 20px;
}

.case-a {
    position: absolute;
    top: 0;
    right: 20px;
    width: 50px;
    height: 60px;
    font-size: 20px;
    text-align: center;
    line-height: 36px;
    color: #fff;
    border-radius: 0 0 30px 30px;
    background: #4cbbb4 url(../images/case_tip.png) no-repeat;
    background-position: center 70%;
}

.case-a:hover {
    color: #fff;
}

.plant-des {
    width: 620px;
}

.plant-des-head {
    display: flex;
    align-items: center;
    height: 40px;
    line-height: 40px;
    padding-bottom: 20px;
    border-bottom: 1px dotted #bcbcbc;
}

.plant-des-head .span {
    width: 200px;
    background-color: #4cbbb4;
    color: #fff;
    text-align: center;
    font-size: 20px;
}

.plant-des-head .xian {
    width: 20px;
    height: 1px;
    background-color: #333333;
    margin: 0 15px;
}

.plant-des-head .des {
    font-size: 20px;
    color: #333333;
}

.plant-des-p {
    font-size: 16px;
    line-height: 36px;
    color: #333;
    margin: 20px 0 40px;
}

.plant-special {
    display: flex;
    height: 104px;
}

.plant-special .span {
    width: 44px;
    color: #fff;
    background-color: #4cbbb4;
    font-size: 20px;
    text-align: center;
    padding: 12px 10px;
    box-sizing: border-box;
    line-height: 1;
    position: relative;
}

.plant-special .span::after {
    content: "";
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 5px solid #4cbbb4;
    border-right: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-top: 5px solid transparent;
}

.plant-special .container {
    width: 468px;
    margin: 0 8px 0 10px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.plant-special .container-span {
    height: 50px;
    line-height: 50px;
    font-size: 18px;
    color: #fff;
    background-color: #999;
    text-align: center;
    margin-bottom: 4px;
}

.plant-special .container-span.grey {
    background-color: #ccc;
}

.plant-special .container-span:nth-child(1) {
    width: 140px;
}

.plant-special .container-span:nth-child(2) {
    width: 160px;
}

.plant-special .container-span:nth-child(3) {
    width: 160px;
}

.plant-special .container-span:nth-child(4) {
    width: 250px;
}

.plant-special .container-span:nth-child(5) {
    width: 215px;
}

/* orthodontics */
.plant-special.orthodontics-special .container-span:nth-child(1) {
    width: 150px;
}

.plant-special.orthodontics-special .container-span:nth-child(2) {
    width: 180px;
}

.plant-special.orthodontics-special .container-span:nth-child(3) {
    width: 130px;
}

.plant-special.orthodontics-special .container-span:nth-child(4) {
    width: 140px;
}

.plant-special.orthodontics-special .container-span:nth-child(5) {
    width: 160px;
}

.plant-special.orthodontics-special .container-span:nth-child(6) {
    width: 160px;
}

/* repair */
.plant-special.repair-special .container-span:nth-child(1) {
    width: 150px;
}

.plant-special.repair-special .container-span:nth-child(2) {
    width: 180px;
}

.plant-special.repair-special .container-span:nth-child(3) {
    width: 130px;
}

.plant-special.repair-special .container-span:nth-child(4) {
    width: 150px;
}

.plant-special.repair-special .container-span:nth-child(5) {
    width: 145px;
}

.plant-special.repair-special .container-span:nth-child(6) {
    width: 165px;
}

/* peridentium */
.plant-special.peridentium-special .container-span:nth-child(1) {
    width: 150px;
}

.plant-special.peridentium-special .container-span:nth-child(2) {
    width: 150px;
}

.plant-special.peridentium-special .container-span:nth-child(3) {
    width: 160px;
}

.plant-special.peridentium-special .container-span:nth-child(4) {
    width: 170px;
}

.plant-special.peridentium-special .container-span:nth-child(5) {
    width: 150px;
}

.plant-special.peridentium-special .container-span:nth-child(6) {
    width: 140px;
}

/* childtooth */
.plant-special.childtooth-special .container-span:nth-child(1) {
    width: 210px;
}

.plant-special.childtooth-special .container-span:nth-child(2) {
    width: 135px;
}

.plant-special.childtooth-special .container-span:nth-child(3) {
    width: 115px;
}

.plant-special.childtooth-special .container-span:nth-child(4) {
    width: 170px;
}

.plant-special.childtooth-special .container-span:nth-child(5) {
    width: 155px;
}

.plant-special.childtooth-special .container-span:nth-child(6) {
    width: 135px;
}

.plant-special .a {
    display: inline-block;
    width: 90px;
    background-color: #4cbbb4;
    color: #fff;
    font-size: 24px;
    text-align: center;
    padding: 20px 0;
}

.plant-special .a:hover {
    color: #fff;
}

.plant-ul {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    margin: 45px 0;
}

.plant-li {
    display: flex;
    align-items: center;
    border-right: 1px dashed #bbb;
    padding: 0 25px;
}

.orthodontics-ul .plant-li {
    padding: 0 50px;
}

.repair-ul .plant-li {
    padding: 0 45px;
}

.peridentium-ul .plant-li {
    padding: 0 45px;
}

.childtooth-ul .plant-li {
    padding: 0 42px;
}

.plant-li:last-child {
    border-right: 0;
}

.plant-li .large {
    font-size: 100px;
    color: #dddddd;
    height: 80px;
    line-height: 80px;
}

.plant-li-des {
    font-size: 16px;
    color: #666;
    line-height: 30px;
    margin-left: 10px;
}

.divider {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    line-height: 36px;
    color: #999;
    margin-bottom: 40px;
}

.divider .xian {
    width: 335px;
    border-bottom: 1px dashed #c6c6c6;
    position: relative;
}

.divider .xian .tip1 {
    position: absolute;
    right: 10px;
    top: -10px;
}

.divider .xian .tip2 {
    position: absolute;
    left: 10px;
    top: -10px;
}

.page-ul {
    display: flex;
    flex-wrap: wrap;
}

.page-li {
    width: 420px;
    margin-bottom: 40px;
    margin-right: 40px;
}

.page-li:nth-child(3n) {
    margin-right: 0;
}

.page-li .black {
    position: relative;
}

.list-img {
    display: block;
    width: 420px;
    height: 192px;
}

.page-li .black::before {
    content: "";
    position: absolute;
    z-index: 3;
    width: 100%;
    height: 100%;
    transition: all 1s;
    background: rgba(0, 0, 0, 0.5);
}

.page-li:hover .black::before {
    background: rgba(0, 0, 0, 0);
}

.page-cont {
    border: 1px solid #dedede;
    border-top: 0;
    height: 282px;
}

.page-cont .head {
    padding: 0 20px;
    border-left: 2px solid#4cbbb4;
    margin-bottom: 40px;
    position: relative;
    left: -1px;
    top: 20px;
}

.page-cont .title {
    font-size: 18px;
    line-height: 1;
    color: #333;
    margin-bottom: 10px;
}

.page-cont .sub-title {
    font-size: 16px;
    line-height: 1;
    color: #999;
}

.page-cont .des {
    font-size: 16px;
    line-height: 30px;
    color: #666;
    padding: 0 21px;
    margin-bottom: 30px;
}

.page-cont .a {
    width: 140px;
    display: block;
    margin: 0 auto;
    text-align: center;
    height: 45px;
    line-height: 45px;
    border: 1px solid #4cbbb4;
    margin-bottom: 30px;
    font-size: 18px;
    color: #4cbbb4;
    transition: all 1s;
}

.page-cont .a:hover {
    background-color: #4cbbb4;
    color: #fff;
}

.page-list-ul {
    display: flex;
    justify-content: center;
}

.page-list-ul li {
    padding: 0 15px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    font-size: 18px;
    color: #999;
    border: 1px solid #c3c3c3;
    margin: 0 6px;
    box-sizing: border-box;
    /* transition: all 0.5s; */
}

/* .page-list-ul li:hover {
    border: 1px solid #4cbbb4;
} */

.page-list-ul li:first-child,
.page-list-ul li:last-child {
    width: 90px;
}

.page-list-ul li.thisclass {
    background-color: #4cbbb4;
    color: #fff;
    border: 1px solid #4cbbb4;
}

.m2 {
    padding: 80px 0 100px;
}

.m2-c-head {
    display: flex;
    justify-content: space-between;
    font-size: 20px;
    line-height: 1;
    margin-bottom: 20px;
    color: #333;
}

.m2-c-head .a {
    font-size: 14px;
    width: 80px;
    line-height: 20px;
    text-align: center;
    background-color: #ccc;
    color: #fff;
    border-radius: 10px;
}

.m2-c-head .a:hover {
    color: #fff;
}

.form {
    padding: 25px;
    background-color: #f5f5f5;
    width: 320px;
    height: 270px;
    box-sizing: border-box;
}

.form .input,
.form .select {
    width: 100%;
    font-size: 16px;
    margin-bottom: 5px;
    border: 1px solid #cdcdcd;
    line-height: 36px;
    box-sizing: border-box;
    color: #666;
    text-indent: 1em;
    height: 36px;
}

.form .select .option {
    height: 36px;
    line-height: 36px;
}

.form-btn {
    width: 180px;
    margin: 0 auto;
    display: block;
    height: 40px;
    line-height: 40px;
    font-size: 18px;
    background-color: #fff;
    border: 1px solid #4cbbb4;
    color: #4cbbb4;
    cursor: pointer;
    margin: 10px auto 0;
}

.mac-slide {
    width: 460px;
    box-sizing: border-box;
    position: relative;
}

.mac-slide .hd {
    position: absolute;
    bottom: 12px;
    right: 10px;
}

.mac-slide .hd ul {
    display: flex;
}

.mac-slide .hd ul li {
    width: 10px;
    height: 10px;
    background-color: #ccc;
    border-radius: 50%;
    margin-right: 10px;
    cursor: pointer;
}

.mac-slide .hd ul li.on {
    background-color: #4cbbb4;
}

.mac-slide .bd ul li {
    display: flex;
}

.mac-img {
    width: 460px;
    height: 270px;
}

/* expert 涓撳 */
.expert-slide {
    width: 460px;
    box-sizing: border-box;
    position: relative;
}

.expert-slide .hd {
    position: absolute;
    bottom: 12px;
    right: 10px;
}

.expert-slide .hd ul {
    display: flex;
}

.expert-slide .hd ul li {
    width: 10px;
    height: 10px;
    background-color: #ccc;
    border-radius: 50%;
    margin-right: 10px;
    cursor: pointer;
}

.expert-slide .hd ul li.on {
    background-color: #4cbbb4;
}

.expert-slide .bd ul li.bg {
    width: 460px;
    height: 270px;
    background: url(../images/expert_bg.jpg) no-repeat center bottom;
}

.expert-slide .bd ul li.bg .div {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 270px;
}

.expert-img {
    width: 180px;
    height: 180px;
    display: block;
}

.expert-des {
    width: 180px;
    height: 180px;
    margin-left: 20px;
}

.expert-des .name {
    font-size: 36px;
    margin-bottom: 20px;
    line-height: 1.2;
    color: #4cbbb4;
}

.expert-des .li {
    font-size: 18px;
    line-height: 30px;
    color: #999;
    display: flex;
    width: 180px;
}

.expert-des .li span {
    margin-left: 5px;
}

.expert-des .a {
    position: absolute;
    font-size: 18px;
    right: 20px;
    line-height: 1.2;
    color: #4cbbb4;
    bottom: 40px;
}