body {
    font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, Helvetica, Arial, PingFang SC, Hiragino Sans GB, Microsoft YaHei, sans-serif;
}

.mai-icon {
    background: #38f;
    color: #fff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    margin-right: 20px;
}

/*����*/
.navbar {
    margin-bottom: 0;
    border-bottom: 1px solid #e6e6e6;
}

.navbar-default {
    background-color: #fff;
    /* box-shadow: 0px 2px 8px 0px rgba(50,50,50,0.25); */
}

.navbar-default .navbar-brand {
    font-size: 30px;
    font-weight: bold;
    color: #38f;
    height: 70px;
    line-height: 35px;
    padding: 0;
}

.navbar-default .navbar-nav>li>a {
    font-size: 16px;
    color: #444;
    height: 70px;
    line-height: 35px;
}

.navbar-default .navbar-nav>li>a:hover {
    color: #38f;
}

.navbar-toggle {
    margin-top: 17px;
}

.banner {
    text-align: center;
    color: #fff;
    background: url(../images/banner.jpg);
    background-size: 100% 100%;
}

.banner-ldgj {
    text-align: center;
    color: #212121;
    background: url(../images/ldgj_bg.webp);
    background-size: 100% 100%;
}

.lvjing {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    padding: 80px 0;
}

#bbs {
    padding: 80px 0;
    text-align: center;
}

#bbs .col-md-4 {
    padding: 15px;
}

#bbs .col-md-4:hover {
    background: #f1f1f1;
    box-shadow: 1px 1px 4px #ccc;
}

#bbs a {
    color: #212121;
    text-decoration: none;
}

#bbs img {
    margin: 0 auto;
}

/*HTML5 + bootstrap*/
#html5 {
    background: #f8f8f8;
}

#html5,
#bootstrap {
    padding: 80px 0;
}

#html5 h2,
#bootstrap h2 {
    font-weight: bold;
}

#html5 p,
#bootstrap p {
    line-height: 25px;
}

/*course*/
#course {
    background: #f8f8f8;
    padding: 80px 0;
    text-align: center;
}

#course h2 {
    font-weight: bold;
    padding-bottom: 60px;
}

.title-h2 {
    font-weight: bold;
    padding-bottom: 60px;
}

#course .col-md-3 {
    margin-bottom: 20px;
}

.course {
    background: #ffffff;
    border: 1px solid #eee;
}

#course .btn {
    background: transparent;
    border: 1px solid #38f;
    border-radius: 0px;
    color: #38f;
    margin-top: 20px;
    margin-bottom: 30px;
    padding: 8px 40px;
    transition: all 0.3s;
}

#course .btn:hover {
    background: #38f;
    color: #fff;
}

.course .case-img {
    width: 100%;
    height: auto;
}

/*app*/
#app {
    padding: 80px 0;
}

#app h2 {
    font-weight: bold;
    padding-bottom: 30px;
}

#app .btn {
    margin: 10px 0;
    background: rgb(64, 210, 177);
    border-color: rgb(64, 210, 177);
    border-radius: 0;
    padding: 6px 30px;
    transition: all 0.3s;
}

#app .btn:hover {
    background: rgb(44, 142, 120);
}

/*contact*/
#contact {
    background: url("../images/contact-bg.jpg") no-repeat;
    background-size: cover;
    color: #ffffff;
}

#contact h2 {
    font-weight: bold;
    margin-top: 0;
    margin-bottom: 25px;
}

#contact p {
    line-height: 24px;
    margin-bottom: 2px;
}

#contact .form-control {
    border: none;
    border-radius: 0;
    height: 50px;
    margin-bottom: 20px;
}

#contact textarea.form-control {
    height: auto;
}

#contact input[type="submit"] {
    background: #40D2B1;
    color: #fff;
    font-weight: bold;
    transition: all 0.3s;
}

#contact input[type="submit"]:hover {
    background: rgb(44, 142, 120);
}

/*footer*/
footer {
    font-weight: 400;
    text-align: center;
    padding: 20px;
    color: #999;
}