body {
    background: url(http://findix.qiniudn.com/bg2.png) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    font-family: "Microsoft YaHei", "Lucida Grande", "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "Hiragino Sans GB W3", "WenQuanYi Micro Hei", sans-serif;
}
h1, h2, h3, h4, h5, h6 {
    font-family: "Microsoft YaHei", "Lucida Grande", "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "Hiragino Sans GB W3", "WenQuanYi Micro Hei", sans-serif;
}
.think h1, .think h2 {
    font-family: "Microsoft YaHei", "Lucida Grande", "Helvetica Neue", Helvetica, Arial, "Hiragino Sans GB", "Hiragino Sans GB W3", "WenQuanYi Micro Hei", sans-serif;
    margin: auto;
    opacity: 0.5;
    font-weight: 900;
    text-shadow: -1px 0px 1px rgba(255, 255, 255, .8), 1px 0px 1px #00B4F1;
}
.think h1 {
    font-size: 5em;
}
.think h2 {
    font-size: 4em;
}
nav, header {
    opacity: 0.8
}
input.form-control {
    opacity: 0.6
}
.container {
    margin-top: 120px;
}
.left_container {
    max-width: 800px;
    margin: 120px auto 120px 230px;
    background-color: #FFF;
    opacity: 0.9;
}

/*社交链接*/
.social {
    font-size: 32px;
}
.icon-social {
    font-family: 'entypo-social';
    font-size: 32px;
    display: block;
    position: relative;
}
.social_link {
    display: inline-block;
    float: left;
    position: relative;
    margin: 0;
    list-style-type: none;
    color: #111
}
.social_link__item {
    display: inline-block;
    margin: 5px 1px 0 0;
    line-height: 1em;
}
.social_link__item a {
    display: block;
    position: relative;
    text-decoration: none;
    border-color: #222;
    color: #222;
    opacity: .8;
}
.social_link__item a:hover {
    text-decoration: none;
    color: #222;
    border-color: #222;
    opacity: 1;
}
.social_link--social a {
    border: 0px;
    padding: 6px 8px 6px 9px;
    text-decoration: none;
}
.social_link--social a .label {
    display: none;
}
.social_link--social a .icon {
    display: block;
    font-size: 1.7em;
}