html,
body {
    width: 100%;
    height: 100%;
    background-color: #fffefe;
}

* {
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}

.w {
    width: 16.25rem;
    margin: 0 auto;
}

/* 吸顶导航 */

.nav-height {
    position: relative;
    height: .8375rem;
}

.nav-wrap {
    width: 100%;
    height: .8375rem;
    background: #fffefe;
}

.nav-wrap.navFix {
    position: fixed;
    top: 0;
    left: 0;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
    /* border-bottom: 1px solid #e3e3e3\9; */
    z-index: 99999;
}

.nav-wrap ul {
    padding: 0;
    margin: 0 auto;
    width: 100%;
    height: 100%;
    display: block;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-wrap.navFix ul {
    border-bottom: 0;
}

.nav-wrap li {
    height: 100%;
    line-height: .8375rem;
}

.nav-wrap li a {
    display: block;
    /* padding: 0 20px; */
    color: #a0a0a0;
    font-size: .325rem;
    text-decoration: none;
}

.nav-wrap li a:hover {
    color: #1a73e8;
}

.nav-wrap li+li {
    margin-left: 10%;
}

.nav-wrap li a.active {
    border-bottom: 2px solid #1a73e8;
    color: #1a73e8;
}

.nav-mobile {
    display: none;
    font-weight: bold;
    width: 100%;
}

.click-me {
    width: 150px;
    height: 30px;
    background: #4680d1;
    color: white;
    text-align: center;
    line-height: 30px;
}

.click-me a {
    display: block;
    color: white;
}

.main_text {
    width: 100%;
    height: 6rem;
    margin: 0 auto;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main_text h3 {
    font-size: .475rem;
    color: #343434;
    margin: .9625rem 0;
    font-weight: 500;
}

.main_text p {
    /* width: 0; */
    /* font-size: 0; */
    width: 15.625rem;
    font-size: .275rem;
    color: #000;
    line-height: 2;
}

.des2 {
    width: 100%;
    height: 8rem;
    background-color: #001530;
    display: flex;
    /* flex-direction: column; */
    align-items: center;
    justify-content: center;
    position: relative;
}

.des2 h3 {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: .475rem;
    color: #fff;
    font-weight: 500;
}

.des2 .des2-main {
    width: 60%;
    height: 60%;
    background: url(../images3/products-dynamic/midbg.png) no-repeat;
    background-size: contain;
    background-position: center;
    position: relative;
}

.des2 .des2-main ul {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-around;
    color: #22e0f6;
    width: 50%;
    height: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-30%, -50%);
}

/* .des2 .two-main ul>li::marker {
    font-size: 30px;
    color: #22e0f6;
}

.des2 .two-main ul>li {
    font-size: .3rem;
    list-style: disc;
} */

.des2 .des2-main ul>li {
    list-style: none;
    /* 去掉原生圆点 */
    font-size: .3rem;
    color: #22e0f6;
    padding-left: 0.5rem;
    position: relative;
    display: flex;
    align-items: center;
    /* 让圆点和文字垂直居中 */
}

.des2 .des2-main ul>li::before {
    content: "•";
    /* 使用圆点字符 */
    font-size: 30px;
    /* 圆点大小 */
    color: #22e0f6;
    margin-right: 0.2rem;
    line-height: 1;
    /* 防止额外高度 */
    flex-shrink: 0;
    /* 防止圆点被压缩 */
}

.des3 {
    width: 100%;
    height: 10rem;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.des3>h3 {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: .475rem;
    color: #343434;
    font-weight: 500;
}

.des3-main {
    width: 70%;
    height: 60%;
}

.des3-main ul {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%;

}

.des3-main ul li {
    width: 22%;
    height: 100%;
    padding: .5rem;
}

.des3-main ul li:nth-child(1) {
    background: url(../images3/products-dynamic/des3-1.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.des3-main ul li:nth-child(2) {
    background: url(../images3/products-dynamic/des3-2.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.des3-main ul li:nth-child(3) {
    background: url(../images3/products-dynamic/des3-3.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.des3-main ul li:nth-child(4) {
    background: url(../images3/products-dynamic/des3-4.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.des3-main ul li h5 {
    font-size: .25rem;
    margin: 10px;
}

.des3-main ul li span {
    font-size: .2rem;
    line-height: 1.8em;
}