.doorbell {
    background-color: #ededed;
}

.doorbell-box {
    margin: 0 auto;
    width: 100%;
    max-width: 1200px;
    background-color: #fff;
}

.doorbell-box img {
    max-width: 100%;
    height: auto;
}

.db-feature {
    padding: 80px 120px;
}

.db-feature ul {
    width: 100%;
    display: table;
}

.db-feature li {
    width: 33.3333%;
    display: table-cell;
}

.db-feature li img {
    margin: 0 auto 15px;
    display: block;
    max-width: 100%;
    height: auto;
}

.db-feature li .body {
    margin: 0 auto;
    padding: 0px 10px;
    max-width: 255px;
}

.db-feature li p {
    padding-left: 30px;
    line-height: 24px;
    color: #777;
    background: url(./star.png) no-repeat 8px 3px;
}

.db-feature li .body2 {
    margin: 0 auto;
    padding: 0px 10px;
    text-align: center;
    max-width: 255px;
}

.db-feature li p.t1 {
    padding: 0px;
    background: none;
    text-align: center;
}

.db-part6 {
    padding: 50px 80px 280px;
    background: url(./dong2.jpg) #fafbfd no-repeat left bottom;
    background-size: 100% auto;
}

.db-part6 h3 {
    margin-bottom: 120px;
}

.db-part6 p {
    margin: 0px 0px 50px 10px;
    max-width: 600px;
}

.db-part6 ul {
    width: 100%;
    max-width: 600px;
    display: table;
}

.db-part6 li {
    width: 50%;
    display: table-cell;
    vertical-align: top;
    text-align: center;
}

.db-part6 li img {
    margin-bottom: 20px;
}

.db-part7 {
    padding: 80px 60px;
    background: #fefefe;
}

.db-part7 h3 {
    margin-bottom: 50px;
}

.db-part8 {
    padding: 80px 80px 380px;
    background: url(./dong3.jpg) #fafbfd no-repeat bottom;
    background-size: 100% auto;
}

.db-part8 ul {
    width: 100%;
    display: table;
    padding: 0px;
}

.db-part8 li {
    width: 50%;
    padding: 10px 0px 0px 30px;
    display: table-cell;
    background: url(https://global.uniview.com/tres/images/doorbell/circle.png) no-repeat;
}

.db-part8 h3 {
    margin-bottom: 40px;
    font-size: 36px;
    color: #333;
    font-weight: normal;
}

.db-part8 p {
    font-size: 16px;
    line-height: 28px;
    color: #555;
}

.db-part3 .item h4,
.db-part3 p,
.db-part3 .item p,
.db-part4 p,
.db-part5 p,
.db-part6 p {
    font-size: 18px;
    line-height: 32px;
    color: #666;
}

@media(max-width: 979px) {
    .db-feature {
        padding: 60px 0px;
    }
    .db-part3 {
        padding: 60px 10px;
    }
    .db-part3 li .img {
        padding-bottom: 20px;
        text-align: center;
    }
    .db-part3 ul,
    .db-part3 li {
        width: 100%;
        display: block;
    }
    .db-part3 li .body {
        padding-left: 0px;
    }
    .db-part3 li .body2 {
        padding: 0px;
    }
    .db-part4,
    .db-part5 {
        padding: 60px 20px 0px;
    }
    .db-part5 li:first-child {
        width: 200px;
        padding-right: 20px;
    }
    .db-part6 {
        padding: 80px 20px 50px;
    }
    .db-part6 h3 {
        margin-bottom: 70px;
    }
    .db-part7 {
        padding: 80px 20px;
    }
    .db-part8 {
        padding: 60px 20px 150px;
    }
}

@media(max-width: 480px) {
    .db-feature li {
        margin-bottom: 30px;
    }
    .db-part3 h3 img {
        max-width: 200px;
    }
    .db-part5 ul {
        margin-bottom: 30px;
    }
    .db-part5 li:first-child {
        width: 120px;
        padding-right: 20px;
    }
    .db-part8 {
        padding: 60px 20px 100px;
    }
    .db-part8 li {
        margin-bottom: 30px;
        width: 100%;
        display: block;
    }
}