html, body {
    width: 100%;
    height: 100%
}

body {
    line-height: 24px;
    font: 14px Helvetica Neue, Helvetica, PingFang SC, Tahoma, Arial, sans-serif;
    min-width: 1200px;
}

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

.w {
    width: 1200px;
    margin: 0 auto;
}
.top-box {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}
.top-logo {
    position: absolute;
    z-index: 1;
}
.top-logo span {
    display: inline-block;
    margin: 52px 0 0 213px;
    font-size: 50px;
    text-shadow:#fff 2px 0 0,#fff 0 2px 0,#fff -2px 0 0,#fff 0 -2px 0;
    letter-spacing: 2px;
    font-weight: 700;
    color: #081d7e;
    cursor: pointer;
}
.top-logo::after{
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 225px;
    height: 200px;
    background: url("../../image/jcs/logo.png") no-repeat center;
    background-size: cover;
    z-index: 1;
}
.input-box {
    width: 290px;
    height: 42px;
    right: 240px;
    bottom: 100px;
    margin: 0 auto;
    border: 3px solid #6e6f6f;
    position: absolute;
    box-shadow: -30px 5px 46px #ffffff;
    z-index: 1;
}
.input-box button {
    width: 70px;
    height: 100%;
    border: none;
    position: absolute;
    right: 0;
    background: url("../../image/jcs/search.png") no-repeat center;
    background-size: 30px 30px;
    background-color: #71d2fe;
    cursor: pointer;
    z-index: 1;

}
.input-box button::after{
    content: '';
    position: absolute;
    left: -15px;
    top: 0;
    width: 0;
    height: 0;
    border-top: 21px solid transparent;
    border-right: 15px solid #71d2fe;
    border-bottom: 21px solid transparent;
}
.input-box input {
    padding-left: 20px;
    width: 200px;
    height: 42px;
    background-color: rgba(255, 255, 255, .9);
}
::-webkit-input-placeholder {
    font-size: 18px;
    color: rgba(100, 100, 99, .8);
}
.input-text {
    font-size: 18px;
    color: rgba(100, 100, 99, .8);
}
/*顶部轮播样式*/
.top-lunbo-box {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.top-lunbo {
    height: 200px;
    display: flex;
}

.top-lunbo div {
    flex: none;
    width: 100%;
    height: 100%;
}

.top-lunbo div img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/*nav样式*/
.nav-box {
    width: 100%;
    display: flex;
    justify-content: center;
    background-color: #036bb1;
}
.nav-content {
    width: 1200px;
    display: flex;
    justify-content: space-between;
}
.nav-content > div {
    font-size: 20px;
    color: #FFFFFF;
    padding: 10px 26px;
    transition: all .2s;
    position: relative;
}
.nav-content > div:hover {
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
}
.nav-second {
    min-width: 100%;
    line-height: 2em;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    color: #ffffff;
    display: none;
    flex-direction: column;
    z-index: 999;
    background: #5caeda;
    cursor: pointer;
    text-align: center;
}
.nav-second span {
    white-space: nowrap;
    padding: 0 10px;
    font-size: 18px;
    align-items: center;
    cursor: pointer;
}
.nav-second span:hover {
    background-color: rgba(3, 107, 177, 0.6);
}

.nav-content > div:hover .nav-second {
    display: flex;
}

/*底部样式开始*/
.bottom {
    height: 270px;
    width: 100%;
    position: relative;
    background-color: #036bb1;
}

.bot_f {
    height: 30px;
    width: 500px;
    padding-top: 30px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.bot_f div {
    padding: 0 10px;
    transition: all .1s;
}
.bot_f div span {
    font-size: 18px;
    line-height: 30px;
    color: #FFFFFF;
    position: relative;
    cursor: pointer;
    vertical-align: middle;
}
.bot_f div img {
    width: 18px;
    height: auto;
    vertical-align: middle;
}

.bot_f div:hover {
    transform: scale(1.1);
}

.bot_s {
    height: 80px;
    width: 100%;
    margin: 23px auto;
    font-size: 14px;
}

.bot_s div {
    display: flex;
    justify-content: center;
}

.bot_s div span {
    font-size: 16px;
    color: #FFFFFF;
    padding: 3px 10px;
    letter-spacing: 2px;
    cursor: pointer;
}
.bot_l {
    height: 60px;
    width: 600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
.bot_l div{
    margin: auto 0;
}