.tab_content .spec .anchor {
    position: fixed;
    width: 100%;
    z-index: 2;
    background-color: #fff;
    top: -60px;
    opacity: 0;
    -webkit-transition: all .5s ease-in-out;
    -o-transition: all .5s ease-in-out;
    transition: all .5s ease-in-out;
}

.tab_content .spec .anchor.show {
    top: 0;
    opacity: 1;
    -webkit-transition: all .5s ease-in-out;
    -o-transition: all .5s ease-in-out;
    transition: all .5s ease-in-out;
}

.tab_content .spec .anchor ul {
    overflow: hidden;
}

.tab_content .spec .anchor li {
    float: left;
    width: 170px;
    text-align: center;
}

.tab_content .spec .anchor a {
    font-size: 14px;
    cursor: pointer;
    line-height: 60px;
}

.tab_content .spec .anchor li.active a, .tab_content .anchor a:hover {
    font-size: 20px;
    color: #6fdafd;
}

.tab_content .spec .wrapper {
    width: 1042px;
    margin: 0 auto;
}

.tab_content .spec .slider {
    width: 100%;
    border-bottom: 1px solid #f2f2f2;
}

.tab_content .spec .mx4-appearance {
    height: 600px;
    background: #f9f9f7 url(/land/mx4/spec/assets/mx4-appearance-2.jpg) 0 0 repeat;
}

.tab_content .spec .appearance-img {
    position: relative;
}

.tab_content .spec .appearance-img img {
    position: absolute;
    width: 400px;
    top: 80px;
    left: 58px;
    opacity: 0;
    visibility: hidden;
    -moz-transition: all .4s ease-out;
    -webkit-transition: all .4s ease-out;
}

.tab_content .spec .appearance .pic-gray {
    opacity: 1;
    visibility: visible;
}

.tab_content .spec .appearance-items {
    padding-top: 101px;
}

.tab_content .spec .appearance-item {
    margin-left: 40px;
}

.tab_content .spec .appearance-item.border {
    border-top: 1px solid #e5e5e5;
    border-bottom: 1px solid #e5e5e5;
}

.tab_content .spec .appearance-item h3 {
    font-size: 20px;
    margin-top: 20px;
}

.tab_content .spec .appearance-item p {
    line-height: 30px;
    margin: 0;
}

.tab_content .spec .appearance-desc p {
    color: #515151;
    padding: 0;
    margin: 0;
    font-size: 16px;
    line-height: 1.4;
    font-weight: normal;
}

.tab_content .spec .appearance-desc {
    padding: 20px 0;
}

.tab_content .spec .appearance-colors {
    color: #797979;
    padding: 22px 0;
}

.tab_content .spec .appearance-item.colors {
    position: relative;
}

.tab_content .spec .appearance-colors {
    position: relative;
    float: left;
    cursor: pointer;
}

.tab_content .spec .appearance-colors h3, .tab_content .appearance-colors ul, .tab_content .appearance-colors li {
    float: left;
}

.tab_content .spec .appearance-colors h3 {
    height: 48px;
    line-height: 48px;
}

.tab_content .spec .appearance-colors ul {
    margin-top: 7px;
}

.tab_content .spec .appearance-colors li {
    text-indent: -9999px;
    width: 34px;
    height: 34px;
    background-image: url(/land/mx4/spec/assets/colors.jpg);
    background-image: -webkit-image-set(url(/land/mx4/spec/assets/colors.jpg) 1x, url(/land/mx4/spec/assets/colors@2x.jpg) 2x);
    margin-right: 14px;
}

.tab_content .spec .appearance-colors .gray {
    background-position: 0 0;
}

.tab_content .spec .appearance-colors .gold {
    background-position: -34px 0;
}

.tab_content .spec .appearance-colors .white-black {
    background-position: -68px 0;
}

.tab_content .spec .appearance-colors .silver {
    background-position: -102px 0;
}

.tab_content .spec .circle-outline {
    position: absolute;
    background-image: url(/land/mx4/spec/assets/circle_outline.png);
    background-image: -webkit-image-set(url(/land/mx4/spec/assets/circle_outline.png) 1x, url(/land/mx4/spec/assets/circle_outline@2x.png) 2x);
    width: 48px;
    height: 48px;
    left: -7px;
    bottom: 15px;
}

.tab_content .spec .storage {
    position: relative;
}

.tab_content .spec .storage ul, .tab_content .storage li {
    float: left;
}

.tab_content .spec .storage h3 {
    line-height: 14px;
}

.tab_content .spec .storage ul {
    margin-top: 20px;
    width: 294px;
}

.tab_content .spec .storage li {
    border-left: 1px solid #9ba1a9;
    border-right: 1px solid #9ba1a9;
    font-size: 26px;
    height: 30px;
    margin-right: -1px;
    padding: 0 6px;
    position: relative;
    text-align: center;
    width: 66px;
}

.tab_content .spec .storage li i {
    position: absolute;
    top: 14px;
    font-size: 16px;
    font-style: normal;
    line-height: 16px;
    *line-height: 18px;
}

.tab_content .spec .mx4-camera {
    height: 653px;
    border-bottom: 1px solid #f2f2f2;
}

.tab_content .spec .mx4-camera ul {
    padding-left: 20px;
}

.tab_content .spec .camera-back, .tab_content .camera-front, .tab_content .mx4-screen, .tab_content .mx4-cpu {
    box-sizing: border-box;
}

.tab_content .spec .camera-back {
    border-right: 1px solid #f2f2f2;
}

.tab_content .spec .camera-desc {
    height: 384px;
    padding: 40px 0 0 73px;
}

.tab_content .spec .camera-desc h3, .tab_content .screen-desc h3, .tab_content .cpu-desc h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 50px;
}

.tab_content .spec .camera-desc li, .tab_content .screen-desc p, .tab_content .cpu-desc p {
    font-size: 15px;
    line-height: 1.7;
    list-style-type: disc;
    margin: 0;
    font-weight: normal;
}

.tab_content .spec .camera-desc li {
    width: 400px;
}

.tab_content .spec .camera-img, .tab_content .cpu-img {
    text-align: center;
    padding-top: 50px;
    position: relative;
}

.tab_content .spec .camera-img img, .tab_content .spec .screen-img img, .tab_content .spec .cup_img img {
    position: absolute;
    bottom: 0;
}

.tab_content .spec .camera-back img {
    position: relative;
    /*right: 228px;*/
}

.tab_content .spec .camera-front img {
    /*left: 80px;*/
    position: relative;
}

.tab_content .spec .camera-front .camera-desc {
    margin-left: 3px;
}

.tab_content .spec .screen-desc, .tab_content .cpu-desc {
    /*height: 400px;*/
    padding: 40px 0 0 75px;
}

.tab_content .spec .screen-desc .row {
    padding-left: 15px;
}

.tab_content .spec .screen-img {
    text-align: center;
    padding-top: 50px;
}

.tab_content .spec .screen-img img {
    position: relative;
}

.tab_content .spec .cpu-img img {
    position: relative;
}

.tab_content .spec .mx4-screen {
    height: 660px;
    border-right: 1px solid #f2f2f2;
}

.tab_content .spec .mx4-network {
    height: 380px;
}

.tab_content .spec .network-desc {
    height: 140px;
    padding: 40px 0 40px 73px;
}

.tab_content .spec .network-desc h3 {
    padding-bottom: 0;
}

.tab_content .spec .network-details {
    font-size: 15px;
    line-height: 1.4;
    font-weight: normal;
}

.tab_content .spec .wireless-desc, .tab_content .bluetooth-desc {
    padding: 10px 0 0 90px;
}

.tab_content .spec .mx4-network row {
    word-spacing: normal;
}

.tab_content .spec .network-item h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 50px;
}

.tab_content .spec .network-item p {
    font-size: 15px;
    line-height: 1.4;
    font-weight: normal;
    list-style-type: disc;
}

.tab_content .spec .network-block-desc {
    line-height: 170px;
    text-align: right;
}

.tab_content .spec .network-block-desc img {
    position: relative;
    top: 26px;
    right: 165px;
}

.tab_content .spec .network-desc span {
    position: relative;
    right: 165px;
}

.tab_content .spec .network-block {
    width: 99px;
    height: 58px;
    border: 1px solid #28a0f7;
    line-height: 25px;
    text-align: center;
    float: left;
    padding-top: 7px;
    margin-right: 30px;
    word-spacing: normal;
    letter-spacing: normal;
}

.tab_content .spec .network-block-bc1 {
    border-color: #f87e20;
}

.tab_content .spec .network-block-bc2 {
    border-color: #5bd9fc;
}

.tab_content .spec .network-block-info {
    padding-top: 45px;
}

.tab_content .spec .network-info {
    padding-top: 30px;
}

.tab_content .spec .network-info p {
    margin-left: 50px;
}

.tab_content .spec .mx4-software {
    height: 800px;
}

.tab_content .spec .software-item.border {
    border-bottom: 1px solid #f2f2f2;
}

.tab_content .spec .software-item {
    height: 160px;
}

.tab_content .spec .software-img {
    padding-top: 30px;
}

.tab_content .spec .software-img img {
    margin-left: 65px;
}

.tab_content .spec .software-desc {
    padding-top: 10px;
}

.tab_content .spec .software-desc h3 {
    font-size: 18px;
    line-height: 30px;
    font-weight: 700;
}

.tab_content .spec .software-desc p {
    font-size: 15px;
    line-height: 1.4;
    font-weight: normal;
}

.tab_content .spec .mx4-operation {
    text-align: center;
    padding-top: 30px;
    height: 340px;
}

.tab_content .spec .mx4-os {
    height: 760px;
    padding-bottom: 60px;
}

.tab_content .spec .os-img {
    padding-top: 260px;
}

.tab_content .spec .os-icons {
    overflow: hidden;
    padding-top: 40px;
}

.tab_content .spec .os-img h3 {
    font-size: 18px;
    line-height: 38px;
    padding: 10px 0 0 50px;
}

.tab_content .spec .os-img img {
    margin-left: 65px;
}