html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: "Microsoft YaHei", "宋体", "黑体", "Helvetica Neue", Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

html,
body,
div,
span,
h1,
h2,
h3,
h4,
h5,
h6,
em,
img,
strong,
sub,
sup,
tt,
dd,
dl,
dt,
form,
label,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
ul,
li,
p,
a,
section {
    margin: 0;
    padding: 0;
    font-weight: normal;
}

input,
select,
textarea {
    vertical-align: middle;
    -ms-behavior: url(css/PIE.htc);
    behavior: url(css/PIE.htc);
    outline: none;
}

img {
    border: 0;
    margin: 0;
    padding: 0;
    display: block;
}

ul li {
    list-style-type: none;
}

a {
    blr: expression(this.onFocus=this.blur());
    text-decoration: none;
}

* {
    margin: 0;
    padding: 0;
    border: 0;
}

div,
a {
    tap-highlight-color: rgba(0, 0, 0, 0);
    focus-ring-color: rgba(0, 0, 0, 0);
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -moz-tap-highlight-color: rgba(0, 0, 0, 0);
    -moz-focus-ring-color: rgba(0, 0, 0, 0);
}

.show-pc {
    display: block;
}

.show-phone {
    display: none;
}

/* 头部 */

.course-header {
    width: 100%;
    position: relative;
    margin: 0 auto;
    overflow: hidden;
    background: #fff;
    border-bottom: 1px solid #ddd;
}

.course-header-wrap {
    width: 1200px;
    height: 80px;
    overflow: hidden;
    margin: 0 auto;
}

.course-header-wrap-logo {
    width: 9%;
    float: left;
    margin-top: 19px;
}

.course-header-wrap-logo img {
    width: 100%;
}

.course-header-wrap-nav {
    width: 37%;
    float: right;
    overflow: hidden;
}

.course-header-wrap-nav li {
    float: left;
    color: #333;
    font-size: 16px;
    height: 80px;
    line-height: 80px;
    margin-left: 12.8%;
    cursor: pointer;
    box-sizing: border-box;
}

.course-header-wrap-nav li:first-child {
    margin-left: 0%;
}

.course-header-wrap-nav li.active {
    color: #e60012;
    border-bottom: 4px solid #e60012;
}

.course-header.active {
    position: fixed;
    top: 0;
    bottom: auto;
    opacity: 1;
    z-index: 999;
    border-bottom: 1px solid #ddd;
}

.course-container {
    position: relative;
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.course-container img {
    width: 100%;
}

/* banner */

.course-bannerbox {
    width: 100%;
    position: relative;
    height: 480px;
    margin: 0 auto;
    background: url(../images/course-banner.jpg) no-repeat top center;
    background-size: cover;
    overflow: hidden;
}

#m4.course-content {
    margin-bottom: 50px;
}

.course-banner-titbox {
    position: relative;
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}

.course-banner-tititem {
    position: absolute;
    left: 0%;
    top: 23%;
    width: 56%;
    font-family: '方正兰亭中黑简体';
}

.course-banner-tit {
    width: 100%;
    font-size: 48px;
    color: #fff;

}

.course-banner-txt {
    width: 100%;
    overflow: hidden;
    font-size: 18px;
    color: #fff;
    margin-top: 6%;
}

.course-banner-txt2 {
    font-size: 30px;
    margin-top: 2%;
}

/* 内容 */
.course-content {
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.course-main {
    width: 1200px;
    position: relative;
    margin: 0 auto;
    overflow: hidden;
}

.course-tit {
    width: 100%;
    margin: 0 auto;
    position: relative;
    padding: 60px 0%;
}

.course-tit-txt {
    width: 100%;
    position: absolute;
    top: 33%;
    left: 0%;
    text-align: center;
    font-size: 36px;
    color: #333;
    font-weight: 600;
}

/* 传统安全面临的挑战 */
.p0-txt {
    font-size: 18px;
    color: #333;
    line-height: 1.7em;
    text-align: justify;
}

.p0-item {
    width: 91.3%;
    overflow: hidden;
    margin: 0 auto;
    margin-top: 2.5%;
}

.p0-item li {
    width: auto;
    float: left;
    text-align: center;
    margin-left: 9.8%;
}

.p0-item li:first-child {
    margin-left: 0;
}

.p0-item li img {
    width: 100px;
    margin: 0 auto;
}

.p0-item li p {
    font-size: 22px;
    font-weight: 600;
    margin: 0 auto;
    color: #333;
    margin-top: 25px;
}



/* 方案能力 */
#m1 {
    background-image: url(../images/p1-bg.png);
    background-size: cover;
    margin-top: 60px;
}

.p1-item {
    width: 100%;
    margin: 0 auto;
    position: relative;
    padding: 0px 0;
    padding-top: 0;
}

.p1-title-txt {
    width: 100%;
    position: absolute;
    top: 34%;
    left: 0%;
    text-align: center;
    font-size: 26px;
    color: #333;
    font-weight: 600;

}
.p1-item-b{
   padding-bottom: 60px;
}
.p1-item-title {
    width: 100%;
    position: relative;
    padding: 60px 0;
}

.p1-title-txt span {
    color: #e60012;
    font-size: 26px;
    font-weight: 600;
}

.p1-txt {
    overflow: hidden;
    width: 100%;
}

.p1-left {
    width: 34.4%;
    float: left;
    position: relative;
}

.p1-right {
    width: 58.5%;
    float: right;
}

.p1-right2 {
    float: right;
}

.p1-left2 {
    float: left;
}

.p1-left-box {
    width: 60%;
    position: absolute;
    top: 11%;
    left: 20%;
}

.p1-left-box li {
    overflow: hidden;
    margin-top: 8%;
}

.p1-left-box li:first-child {
    margin-top: 0;
}

.p1-left-box li img {
    width: 11px;
    float: left;
    margin-top: 3.5%;
    margin-right: 6%;

}

.p1-left-box li p {

    float: left;
    font-size: 20px;
    color: #333;
}

.p1-item1-line {
    position: absolute;
    top: 16%;
    left: 21.2%;
    width: 3px;
}

.p1-item1-line2 {
    top: 23%;
    left: 31.3%;
}

.p1-item1-line3 {
    top: 29%;
    left: 25.3%;
}

.p1-left-box2 {
    top: 18%;
    left: 30%;
}

.p1-left-box0 {
    top: 51.7%;
}

.p1-left-box3 {
    top: 25%;
    left: 24%;
}

.p1-left-box4 {
    top: 59%;
    left: 30%;
}

.p1-left-box5 {
    top: 52%;
    left: 24%;
}

.p2-txt {
    width: 100%;
    position: relative;
}

.p2-txt img {
    width: 100%;
}

.p2-txt p {
    width: 100%;
    text-align: center;
    font-size: 28px;
    color: #fff;
    font-weight: 600;
    position: absolute;
    bottom: 5%;
    left: 0%;
}

.p2-item {
    overflow: hidden;
    margin-top: 60px;
    height: 120px;
}

.p2-item li {
    float: left;
    width: 33%;
    line-height: 1.7em;
    margin-left: 2.7%;
}

.p2-item li:first-child {
    margin-left: 0%;
}

.p2-item1 {
    width: 11px;
    float: left;
    margin-right: 2%;
    margin-top: 2.5%;
}

.p2-item1-tit {
    font-size: 22px;
    color: #333;
    font-weight: 600;
    margin-bottom: 2%;
}

.p2-item1-txt {
    font-size: 16px;
    color: #333;
    margin-bottom: 2%;
    width: 95%;
    margin-left: 5%;
    overflow: hidden;
}
.p2-item1-txt-ul{
    width: 94%;
    margin-left: 0%;
}
.p2-item1 img {
    width: 100%;
}

.p2-item p {
    float: left;
    font-size: 16px;
    color: #333;
}

.p2-item li:nth-child(3) li {
    width: 43.8%;
    margin-left: 0%;
}

.p2-item1-txt img {
    width: 7px;
    float: left;
    margin-top: 8.5%;
    margin-right: 5%;
}

 .p2-item li:nth-child(3) {
    width: 28.6%;
}


.p2-btnbox {
    width: 33.2%;
    margin: 0 auto;
    overflow: hidden;
}

.p2-item-img {
    width: 26.5%;
    margin: 0 auto;
    overflow: hidden;
    float: left;
    margin-left: 10%;
    cursor: pointer;
}

.p2-item-img.active {
    border: #E60012 4px solid;
    border-radius: 50%;
    box-sizing: border-box;
}

.p2-item-img:first-child {
    margin-left: 0;
}

.p2-item-img img {
    width: 100%;
}

.p2-item-img img:first-child {
    margin-left: 0%;
}


.p2-yybox {
    width: 100%;
    overflow: hidden;
    /* display: none; */
    margin-bottom: 2%;
}

.p2-yybox.active {
    display: block;
}

.swiper-container {
    width: 100%;
    height: 600px;
}


#m3 {
    background-image: url(../images/p3-bg.png);
    background-size: cover;
    margin-top: 60px;
}

.p3-img {
    width: 58%;
    margin: 0 auto;
}

.p3-img img {
    width: 100%;
}

.p3-btn {
    width: 170px;
    height: 45px;
    line-height: 45px;
    background-color: #e60012;
    margin: 0 auto;
    margin-top: 60px;
    margin-bottom: 60px;
    cursor: pointer;
    border-radius: 25px;
}

.p3-btn:hover {
    background-color: #D7000F;
}

.p3-btn img {
    width: 17px;
    float: left;
    margin: 14px 14px 0 34px;

}

.p3-btn p {
    font-size: 18px;
    color: #fff;
}

.bottom {
    width: 100%;
    height: 60px;
    background-color: #4d4d4d;
    text-align: center;
    font-size: 12px;
    line-height: 60px;
    color: #e5e5e5;
}

.bottom img {
    vertical-align: middle;
    display: inline-block;
    padding-left: 1%;
    padding-right: 0.5%;
}

@media(max-width:1200px) {
    .course-main {
        width: 960px;
        position: relative;
        margin: 0 auto;
        overflow: hidden;
    }

    .course-header-wrap {
        width: 960px;
        height: 80px;
        overflow: hidden;
        margin: 0 auto;
    }

    .course-header-wrap-logo {
        margin-top: 26px;
    }

    .course-header-wrap-nav {
        width: 60%;
    }

    .course-banner-tititem {
        left: 10%;
    }

    .course-titbox {
        font-size: 17px;
        ;
    }

    .course-titbox3 {
        width: 81%;
    }
    .p0-item li {
        margin-left: 3.8%;
    }
    .p1-left-box li p {
        font-size: 15px;
    }
    .p2-item1 {
        margin-right: 0%;
    }
    .p2-item1-tit {
        font-size: 20px;
    }
    .p2-item1-txt {
        font-size: 13px;
    }
    .swiper-container{
        height: 500px;
    }
}

@media(max-width:768px) {
    .show-pc {
        display: none;
    }

    .show-phone {
        display: block;
    }

    .course-main {
        width: 93.5%;
        position: relative;
        margin: 0 auto;
        overflow: hidden;
    }

    .course-header.active {
        position: fixed;
        top: 0;
        bottom: auto;
        opacity: 1;
        z-index: 999;
        border-bottom: 1px solid #ddd;
    }

    .course-bannerbox {
        height: auto;
        background: none;
    }

    .course-header-wrap {
        width: 93%;
        height: auto;
        overflow: hidden;
        margin: 0 auto;
    }

    .course-header-wrap-logo {
        width: 16.8%;
        float: left;
        padding: 3% 0;
        margin-top: 0%;
    }

    .course-header-menu-w {
        width: 100%;
        position: fixed;
        top: 7%;
        right: 0;
        z-index: 3;
        /* display: none; */
        border-bottom: 1px solid #ddd;
        z-index: 11;
        background-color: #fff;
        display: none;
    }

    .course-header-menu-w li {
        border-top: 1px solid #ddd;
    }

    .course-header-menu-list {
        font-size: 3.6vw;
        width: 100%;
        padding: 2% 5%;
        background-color: #fff;
    }

    .course-header-menu-list a {
        color: #333333;
    }

    .course-header-menu-list.active {
        color: #e60012;
    }

    .course-menu-btn {
        width: 5.5%;
        position: absolute;
        top: 28%;
        right: 5%;
    }

    .course-menu-btn img {
        width: 100%;
    }

    .course-bannerbox img {
        width: 100%;
    }

    .course-content {
        padding-top: 1%;
    }

    .course-banner-titbox {
        width: 100%;
        position: absolute;
        left: 0;
        top: 0;
    }

    .course-banner-tititem {
        position: absolute;
        left: 6.8%;
        top: 15.5%;
        width: 100%;
    }

    .course-banner-icon {
        width: 62%;
        font-size: 3.2vw;
        font-weight: 600;
        margin-top: 5%;
    }

    .course-banner-icon img {
        width: 7%;
        margin-right: 3%;
        float: left;
        margin-top: 1%;
    }

    .course-titbox {
        top: 7.5%;
        font-size: 3.47vw;
    }

    .course-banner-tit {
        font-size: 6.4vw;
        ;
    }

    .course-banner-txt {
        font-size: 2.67vw;
    }

    .course-banner-txt2 {
        font-size: 4.27vw;
    }

    .course-tit-txt {
        top: 23%;
        font-size: 4.8vw;
    }

    .course-tit {
        width: 100%;
        margin: 0 auto;
        position: relative;
        padding: 5% 0%;
    }

    .p0-txt {
        font-size: 3.2vw;
        color: #333333;
        width: 94%;
        margin: 0 auto;
    }

    .p0-item {
        width: 84%;
        overflow: hidden;
        margin: 0 auto;
        margin-top: 4%;
    }

    .p0-item li p {
        font-size: 3.73vw;
        margin-top: 10px;
    }

    .p0-item li {
        width: auto;
        float: left;
        text-align: center;
        margin-left: 14%;
    }

    .p0-item li:nth-child(3) {
        margin-left: 0;
        margin-top: 15px;
    }

    .p0-item li:nth-child(4) {
        margin-top: 15px;
        margin-left: 11%;
    }

    .p0-item li img {
        width: 75px;
        margin: 0 auto;
    }

    #m1 {
        background-image: url(../images/p1-bg.png);
        background-size: cover;
        margin-top: 5%;
    }

    .p1-title-txt {
        top: 21%;
        left: -1.5%;
        font-size: 3.53vw;
        color: #333;
    }

    .p1-title-txt span {
        color: #e60012;
        font-size: 3.73vw;
        font-weight: 600;
    }

    .p1-item-title {
        padding: 5% 0;
    }

    .p1-left {
        width: 100%;
        float: none;
        position: relative;
    }

    .p1-left-box li p {
        float: left;
        font-size: 3.2vw;
    }

    .p1-left-box li img {
        width: 3%;
        float: left;
        margin-top: 2.5%;
        margin-right: 2%;
    }

    .p1-left-box li {
        overflow: hidden;
        margin-top: 3.5%;
    }

    .p1-left-box {
        width: 60%;
        position: absolute;
        top: 20%;
        left: 7.6%;
    }
    .p1-left-box3 {
        top: 25%;
    }
    .p1-item1-line3 {
        top: 30%;
    }
    .p1-left-box0 {
        left: 55.2%;
    }

    .p1-item1-line {
        position: absolute;
        top: 29%;
        left: 8.5%;
        width: 1.85px;
    }

    .p1-item1-line0 {
        left: 56%;
    }
    .p1-right {
        width: 100%;
        float: none;
        overflow-x: scroll;
        margin-top: 5%;
    }
    .p1-right img{
        width:100%;
    }
    .p1-item {
        width: 100%;
        margin: 0 auto;
        position: relative;
        padding: 5% 0;
        padding-top: 0;
    }
    .p1-left-box4,.p1-left-box5 {
        left: 55.2%;
    }
    .p1-item0{
        padding-top: 2%;
    }
    .p2-item {
        overflow: hidden;
        margin-top:0%;
        height: auto;
        background: #fff;
        border: 1px solid #f1f1f1;
        box-sizing: border-box;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 10%);
        padding-bottom: 4%;
    }
    .p2-item li:first-child {
        margin-left: auto;
        margin-top: 3%;
    }
    .p2-item li {
        float: none;
        width:100%;
        line-height: 1.7em;
        margin-left: 2.7%;
        width:91%;
        margin: 0 auto;
        overflow: hidden;
    }
    .p2-item1-tit {
        font-size: 3.73vw;
        color: #333;
        font-weight: 600;
        margin-bottom: 1%;
    }
    .p2-item1-txt {
        font-size: 2.89vw;
        color: #333;
        margin-bottom: 2%;
        width: 94%;
        margin-left: 5%;
        line-height: 1.7em;
    }
    .p2-item li:nth-child(3) {
        width: 91%;
    }
    .p2-item1 {
        width: 2.5%;
        margin-right: 2%;
    }
    .p2-item1-txt img {
        margin-top: 4.5%;
    }
.p2-item1-txt-ul li{
    float: left;
}
.p2-item li:nth-child(3) li {
    margin-top: 0%;
}
.p2-item1-txt3{
    letter-spacing: -0.7px;
}
#m3 {
    margin-top: 3%;
}
.p3-img {
    width: 100%;
    margin: 0 auto;
}
.p3-btn {
    width: 29%;
    height: 4%;
    line-height: 1.8em;
    background-color: #e60012;
    margin: 0 auto;
    margin-top: 4%;
    margin-bottom: 7%;
    cursor: pointer;
    border-radius: 25px;
}
.p3-btn p {
    font-size: 2.93vw;
}
.p3-btn img {
    width: 11%;
    float: left;
    margin: 7% 6% 0 19%;
}

    .bottom {
        padding: 2.5% 0;
        height: auto;
        line-height: 1.75em;
        font-size: 3vw;
    }

    .bottom span {
        display: block;
    }

    .main {
        width: 93%;
    }

    .swiper-container {
        width: 100%;
        height: 122vw;
    }
    .p2-txt p {
        font-size: 4.26vw;
    }
    .p1-item-b{
        padding-bottom: 5%;
     }
}