body > .content {
    background-color: #f5f5f5
}

.brief {
    padding-top: 30px;
    background-color: #eef0f4;
}

.brief .d-uav {
    font-size: 30px;
    color: #d14e37;
}

.brief .explain {
    font-size: 14px;
    color: #999999;
}

.guidance {
    background-color: #f8f8f8;
}

.guidance .subtitle > a {
    font-size: 24px;
    color: #333333;
    font-weight: bold;
}

.guidance .grid {
    background-color: #ffffff;
    box-shadow: 0px 2px 4px 0px rgba(4, 0, 0, 0.2);
    border-radius: 12px;
    margin: 24px 0 0 0;
    padding: 24px;
}

.guidance .grid > div {
    margin-top: 16px;
}

.guidance .description {
    font-size: 14px;
    color: #888888;
}

.guidance .know-more {
    width: 88px;
    height: 36px;
    line-height: 36px;
    background-color: #3a9ad9;
    border-radius: 8px;
    margin-left: 15px;
    font-size: 14px;
    color: #ffffff;
}

.guidance .know-more > a {
    text-decoration: none;
    color: #ffffff;
}