/************
 * 页面样式
 ************/

/* ==========
   基本默认值
   ========== */

html {
    font-size: 62.5%;
    color: #222;
    font-family: 'Arial';
}

::selection{
    background-color: #b3d4fc;
    text-shadow: none;
}

ul{
    margin: 0;
    padding: 0;
}
li{
    list-style: none;
}

/* ==========
  工具样式
  ========== */

.center-block {
    display: block;
    margin-right: auto;
    margin-left: auto;
}

.pull-right {
    float: right !important;
}

.pull-left {
    float: left !important;
}

.text-right {
    text-align: right;
}

.text-right {
    text-align: left;
}

.text-center {
    text-align: center;
}

.hide {
    display: none !important;
}

.show {
    display: block !important;
}

.text-hide {
    font: 0/0 a;
    color: transparent;
    text-shadow: none;
    background-color: transparent;
    border: 0;
}

.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}

.clearfix:after{
    clear: both;
}

/* =============
   浏览器更新提示
   ============== */

.browseupgrade{
    margin: 0;
    padding: 1rem;
    background-color: #ffffff;
}

/* =============
   自定义页面样式
   ============== */

body {
    font-size: 1.2rem;
    line-height: 1.5;
    background-color: #ffffff;
    overflow-x: hidden;
}

a {
    color : #000000;
    text-decoration: none;
}

header {
    margin-bottom: 30rem;
}

header img{
    padding-top: 5rem;
    width: 80px;
}
header ul {
    width: 70%;
    margin: auto;
}
header li {
    display: inline-block;
    width: calc(33.333333% - 3rem);
    text-align: center;
}

header li + li {
    margin-left: 3.2rem;
}

header li a {
    line-height: 16rem;
    font-size: 4rem;
}

header li a:hover{
    color: #DE5021;
}

.item {
    width: 100%;
    height: auto;
    padding-bottom: 3rem;
    background-color: white;
}

.item +.item {
    margin-top: 500px;
}

.item h1 {
    /*height: 10rem;*/
    line-height: 22rem;
    font-size: 8rem;
}

.item-container {
    width: 100%;
    margin: auto;
}
.projects {
    width: 94%;
    margin: 0 auto;
    height: auto;
    position: relative;
    padding-bottom: 5rem;
}

.projects-container {
    display: inline-block;
    width: calc(33.333333% - 3rem);
    margin: auto;
    position: relative;
}

.projects .projects-container + .projects-container {
    margin-left: 3rem;
}


.projects-container img{
    width: 100%;
    margin: 0 auto;
}

.describe {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    position: absolute;
    background-color: rgba(0,0,0,0.6);
}

.describe h3{
    color: #ffffff;
    padding-top: 90px;
    font-size: 20px;
    line-height: 40px;
}

.describe p{
    color: #ffffff;
    font-size: 15px;
}


.about img{
    width: 250px;
    border-radius: 50%;
}

.about h3{
    font-size: 2rem;
    line-height: 6rem;
}

.about p{
    font-size: 1.5rem;
    width: 60%;
    margin: auto;
}

.contact p{
    width: 60%;
    margin: auto;
    font-size: 1.5rem;
}

.bg-image{
    position: fixed;
    z-index: -1;
    width: 100%;
}

.bg-image img{
    width: 100%;
}