* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: PingFangSC-Semibold, PingFang SC;
}

html,
body {
    width: 100%;
}

li {
    list-style-type: none;
}

.middle {
    display: flex;
    justify-content: center;
    align-items: center;
}

.navbar {
    height: 50px;
    background-color: #1F1E1E;
    padding: 0;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, .8);
}

.navbar-dark .navbar-nav .nav-link.active {
    color: #fff;
}

.navbar-dark .navbar-nav .nav-link:focus,
.navbar-dark .navbar-nav .nav-link:hover {
    color: #fff;
}

.navbar-dark .navbar-brand:focus,
.navbar-dark .navbar-brand:hover {
    color: #fff;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-dark .navbar-brand {
    width: auto;
    color: #fff;
    flex: auto;
}

.navbar-collapse {
    flex-grow: 0;
    background-color: #1F1E1E;
    padding: 0 20px;
}

.navbar-dark .navbar-toggler {
    margin-right: 10px;
    border-color: #fff;
}

.login {
    width: 110px;
    border: 1px solid #fff;
    border-radius: 50px;
    height: 30px;
    margin: auto 16px auto 0;
    padding: 0 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    color: #fff;
}

.login a {
    color: rgba(255, 255, 255, .8);
    text-decoration: none;
}

.login a:hover {
    color: rgba(255, 255, 255, 1);
}

.user-info {
    display: flex;
    align-items: center;
}

.head-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;

}

/* 横幅 */
.top {
    /* margin-top: 50px;
    height: 500px; */
    background: url('../images/csaoStore/topBg.png') no-repeat center;
    background-size: 100% 100%;
    overflow: hidden;
}

.banner {
    margin-top: 50px;
    padding-right: 12px;
}

.banner-left {
    padding-top: 80px;
}

.banner-left .title {
    font-size: 40px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #FFFFFF;
    line-height: 42px;
    letter-spacing: 4px;
}

.banner-left .subtitle {
    font-size: 21px;
    font-family: PingFangSC-Medium, PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 42px;
    letter-spacing: 2px;
    margin-top: 30px;
    padding-right: 30px;
}

.begin-use {
    display: block;
    text-decoration: none;
    cursor: pointer;
    width: 130px;
    height: 35px;
    line-height: 35px;
    background: #fff;
    border-radius: 4px;
    font-size: 20px;
    font-family: PingFangSC-Medium, PingFang SC;
    font-weight: 500;
    color: #F18E31;
    letter-spacing: 2px;
    text-align: center;
    margin-top: 30px;
    margin-bottom: 108px;
    border: 1px solid #fff;
}

.begin-use:hover {
    border: 1px solid #F18E31;
    color: #fff;
    background: #F18E31;
}

.banner-right {
    margin-top: 40px;
    background: url('../images/csaoStore/topRight.png') no-repeat center;
    background-size: 100% 100%;
}

/* 主内容 */
.main {
    background: #F6F8F9;
    padding: 50px 0;
}

.select-item {
    height: 50px;
    background-color: #fff;
    border-radius: 8px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.select-item .label {
    font-size: 18px;
    color: #333333;
    line-height: 25px;
    font-weight: 600;
}

.select-item .line {
    display: block;
    margin: 0 10px;
}

.select-item .select-main {
    flex: 1;
    border: 0;
    outline: 0;
    color: #666;
    cursor: pointer;
    background-color: #fff;
}

.search-icon {
    width: 20%;
    height: 100%;
    background-color: #F18E31;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.search-more {
    cursor: pointer;
}

.main .main-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 50px 3px 20px;
}

.main-title .title-left {
    font-size: 28px;
    font-weight: 600;
    color: #333333;
    line-height: 40px;
}

.main-title .title-right {
    font-size: 16px;
    color: #666666;
    line-height: 22px;
    cursor: pointer;
}

.title-right:hover {
    color: #F18E31;
}

.posters {
    height: 380px;
}

.posters-item,
.screen-item,
.tew-item,
.video-item {
    width: 96%;
    height: 100%;
    border-radius: 8px;
    margin: auto;
    cursor: pointer;
}

.posters-item:hover,
.screen-item:hover,
.tew-item:hover,
.video-item:hover {
    transform: scale(1.05, 1.05);
    box-shadow: 0 0 6px 3px #aaa;
}

.posters>div:nth-child(1) .posters-item {
    background: url('../images/csaoStore/posters1.png') no-repeat center;
    background-size: 100% 100%;
}

.posters>div:nth-child(2) .posters-item {
    background: url('../images/csaoStore/posters2.png') no-repeat center;
    background-size: 100% 100%;
}

.posters>div:nth-child(3) .posters-item {
    background: url('../images/csaoStore/posters3.png') no-repeat center;
    background-size: 100% 100%;
}

.posters>div:nth-child(4) .posters-item {
    background: url('../images/csaoStore/posters4.png') no-repeat center;
    background-size: 100% 100%;
}

.screen {
    height: 200px;
}

.screen-item {
    height: 100%;
    border-radius: 8px;
}

.screen>div:nth-child(1) .screen-item {
    background: url('../images/csaoStore/screen1.png') no-repeat center;
    background-size: 100% 100%;
}

.screen>div:nth-child(2) .screen-item {
    background: url('../images/csaoStore/screen2.png') no-repeat center;
    background-size: 100% 100%;
}

.screen>div:nth-child(3) .screen-item {
    background: url('../images/csaoStore/screen3.png') no-repeat center;
    background-size: 100% 100%;
}

.screen>div:nth-child(4) .screen-item {
    background: url('../images/csaoStore/screen4.png') no-repeat center;
    background-size: 100% 100%;
}

/* 图说 */
.tew {
    height: 320px;
}

.tew-item {
    height: 100%;
    border-radius: 8px;
}

.tew>div:nth-child(1) .tew-item {
    background: url('../images/csaoStore/tew4.png') no-repeat center;
    background-size: 100% 100%;
}

.tew>div:nth-child(2) .tew-item {
    background: url('../images/csaoStore/tew2.png') no-repeat center;
    background-size: 100% 100%;
}

.tew>div:nth-child(3) .tew-item {
    background: url('../images/csaoStore/tew3.png') no-repeat center;
    background-size: 100% 100%;
}

.tew>div:nth-child(4) .tew-item {
    background: url('../images/csaoStore/tew4.png') no-repeat center;
    background-size: 100% 100%;
}

/* 视频 */
.video {
    height: 200px;
    margin-bottom: 15px;
}

.video-item {
    height: 100%;
    border-radius: 8px;
}

.video>div:nth-child(1) .video-item {
    background: url('../images/csaoStore/video4.png') no-repeat center;
    background-size: 100% 100%;
}

.video>div:nth-child(2) .video-item {
    background: url('../images/csaoStore/video2.png') no-repeat center;
    background-size: 100% 100%;
}

.video>div:nth-child(3) .video-item {
    background: url('../images/csaoStore/video3.png') no-repeat center;
    background-size: 100% 100%;
}

.video>div:nth-child(4) .video-item {
    background: url('../images/csaoStore/video4.png') no-repeat center;
    background-size: 100% 100%;
}

/* 页脚 */
.bottom {
    background-color: #212330;
    padding: 50px 0 40px;
    color: #fff;
}

.bottom-main {
    padding-bottom: 40px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2000);
}

.bottom .bottom-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.5000);
}

.bottom .bottom-title {
    font-size: 16px;
    line-height: 22px;
}

.bottom .item-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.5000);
    margin-top: 16px;
    display: block;
    text-decoration: none;
}

.bottom .item-text:hover {
    color: #fff;
}

@media (min-width: 992px) {
    .navbar-expand-lg .navbar-nav .nav-link {
        padding-right: 16px;
        padding-left: 16px;
    }
}

@media (max-width: 768px) {
    .top {
        /* height: 290px; */
        /* background: url('../image/index/banner/baogao2.png') no-repeat center; */
        /* background-size: 100% 100%; */
    }

    .banner-left {
        padding-top: 20px;
    }

    .banner-left .title {
        /* font-size: 26px;
        line-height: 30px; */
        font-size: 16px;
        line-height: 30px;
        letter-spacing: 1px;
    }

    .banner-left .subtitle {
        /* font-size: 18px;
        line-height: 20px; */
        font-size: 12px;
        line-height: 24px;
        letter-spacing: 1px;
        margin-top: 10px;
        padding-right: 0;
    }

    .begin-use {
        width: 100px;
        height: 30px;
        line-height: 30px;
        background: #FFFFFF;
        border-radius: 4px;
        font-size: 18px;
        letter-spacing: 1px;
        text-align: center;
        margin-top: 30px;
        margin-bottom: 20px;
    }

    .banner-right {
        margin-top: 40px;
        background: url('../images/csaoStore/topRight.png') no-repeat center;
        background-size: contain;
    }

    .screen,
    .video {
        height: 300px;
    }

    .posters {
        height: 580px;
    }

    .tew {
        height: 500px;
    }

}

@media (max-width: 992px) {

    .logo {
        transform: scale(.8, .9);
        width: 100px;
    }

    .login {
        margin: 10px 0 20px;
    }


    .main {
        padding: 30px 0;
    }

    .select-item {
        height: 40px;
    }

    .select-item .label {
        font-size: 16px;
        line-height: 20px;
    }

    .main .main-title {
        padding: 30px 3px 20px;
    }

    .main-title .title-left {
        font-size: 20px;
        line-height: 24px;
    }

    .main-title .title-right {
        font-size: 14px;
        line-height: 18px;
    }

    .bottom-item {
        text-align: center;
    }

    .bottom-title {
        margin-top: 16px;
    }

    .bottom-text {
        text-align: center;
    }

    .user-info {
        display: block;
    }
}