@font-face {
    font-family: 'times';
    src: url('../font/times.ttf');
}

@font-face {
    font-family: 'Deng';
    src: url('../font/Deng.ttf');
}

.container .home {
    width: 100%;
    height: 100vh;
    background: url('../images/bg.png') no-repeat;
    background-position: center top;
    background-size: cover;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 36px;
}

header .logo {
    width: 410px;
}

.logo img {
    width: 100%;
}

header nav li a {
    font-family: 'times';
    padding: 0 33px;
    font-size: 24px;
    cursor: pointer;
    color: #fff;
}

header nav li span {
    display: block;
    margin-left: 33px;
    font-size: 20px;
    color: #fff;
    border: 2px solid #fff;
    border-radius: 8px 0 8px 0;
    padding: 4px 24px;
    cursor: pointer;
}

header nav .nav {
    display: flex;
    align-items: center;
}

header nav .nav li {
    position: relative;
}

header nav .nav li .sonNav {
    display: none;
    position: absolute;
    flex-direction: column;
    width: 100%;
    text-align: center;
    border-radius: 3px;
    background-color: rgba(255, 255, 255, .3);
    backdrop-filter: blur(3px);
}

header nav .nav li:hover .sonNav {
    display: flex;
}

header nav .nav li .sonNav li:hover {
    background-color: rgba(255, 255, 255, .3);
}

.sonNav li a {
    display: block;
    padding: 5px 0;
}

.home_text {
    padding: 0 120px;
}

.home_text h2 {
    color: #fff;
    font-size: 50px;
    font-weight: normal;
}

.text_p {
    margin-top: 30px;
    color: #fff;
    opacity: .9;
}

.text_p p {
    margin: 5px 0;
}

.grid {
    display: flex;
    flex-direction: column;
}

.grid .item {
    position: relative;
    display: flex;
    align-items: center;
    padding: 7px 22px;
    border: 1px solid rgba(255, 255, 255, .66);
    font-family: 'Deng';
    margin: 58px 66px 0 0;
}

.grid .item h3 {
    font-size: 80px;
    position: absolute;
    bottom: 0;
    transform: translateY(5%);
    color: #fff;
    font-weight: normal;
}

.grid .item .block {
    width: 60px;
}

.grid .item span {
    font-size: 32px;
    color: #fff;
}

.databases {
    padding: 0 100px;
}

.databases .title {
    padding: 35px 0;
    margin-top: 30px;
}

.title {
    color: #008993;
    font-size: 30px;
}

.cont_row {
    width: 100%;
    background: #e3f0ef;
    padding: 30px;
    border-radius: 15px;
    overflow: hidden;
}

.cont_row .item {
    display: flex;
    align-items: center;
    justify-content: center;
    float: left;
    width: 50%;
    margin: 15px 0;
    padding: 0 10px;
}

.cont_row .item img {
    width: 100%;
}

footer {
    margin-top: 40px;
    width: 100%;
}

footer img {
    width: 100%;
}

.clone {
    display: none;
    align-items: center;
    justify-content: center;
    width: 30px;
    margin-top: 80px;
}

.clone img {
    width: 100%;
}

.menu {
    display: none;
    width: 30px;
}

.menu img {
    width: 100%;
}

@media (max-width:1300px) {
    header nav li a {
        font-size: 22px;
        padding: 0 15px;
    }
    header nav li span {
        font-size: 18px;
        margin-left: 15px;
    }
    header .logo {
        width: 340px;
    }
    .home_text h2 {
        font-size: 40px;
    }
    .grid .item h3 {
        font-size: 60px;
    }
    .grid .item .block {
        width: 45px;
    }
    .grid .item {
        padding: 4px 22px;
    }
    .databases {
        padding: 0 50px;
    }
}

@media (max-width:1100px) {
    header nav li a {
        font-size: 18px;
        padding: 0 12px;
    }
    header nav li span {
        font-size: 16px;
        margin-left: 12px;
    }
    header .logo {
        width: 280px;
    }
    .home_text h2 {
        font-size: 32px;
    }
    .grid .item h3 {
        font-size: 40px;
    }
    .grid .item .block {
        width: 35px;
    }
    .grid .item span {
        font-size: 20px;
    }
    .home_text {
        padding: 0 60px;
    }
    .grid .item {
        margin: 50px 60px 0 0;
    }
}

@media (max-width:900px) {
    .menu {
        display: flex;
        align-items: center;
    }
    nav {
        display: none;
        position: fixed;
        width: 100%;
        height: 100vh;
        z-index: 999;
        top: 0;
        left: 0;
        background-color: rgba(0, 0, 0, .4);
        backdrop-filter: blur(5px);
        padding: 20px 0;
    }
    .nav {
        flex-direction: column;
    }
    .nav li a {
        display: block;
        padding: 20px 0;
    }
    header nav .nav li .sonNav {
        position: static;
    }
    header nav .nav li span {
        margin-top: 20px;
        margin-left: 0;
    }
    .clone {
        display: flex;
    }
    .cont_row {
        padding: 15px 20px;
    }
    .databases {
        padding: 30px;
    }
    .home_text {
        padding: 0 45px;
    }
}

@media (max-width:700px) {
    .cont_row .item {
        width: 100%;
        margin: 10px 0;
    }
    .databases .title {
        padding: 10px 0;
        margin-top: 10px;
    }
    .databases {
        padding: 0 30px;
    }
    .grid .item {
        margin: 10px;
    }
}

@media (max-width:500px) {
    .grid .item {
        margin: 10px;
    }
    .row {
        flex-direction: column;
    }
    header .logo {
        width: 200px;
    }
    header {
        padding: 15px 22px;
    }
    .home_text {
        padding: 0 30px;
    }
    .databases {
        padding: 0 25px;
    }
    .cont_row .item {
        margin: 5px 0;
        padding: 0;
    }
    footer {
        margin-top: 20px;
    }
}