/*自定义样式*/

.container {
padding-bottom:50px;
}

.top {
    margin-top: 50px;
}

    .top span {
        font-size: 18px;
        line-height: 24px;
        color: #686868;
        margin-right: 4px;
        margin-top: 8px;
    }

.top span i {
    color: #ff0000;
}
 .top input {
    width: 261px;
    height: 40px;
    border: 1px solid #efefef;
    font-size: 16px;
    color: #333;
    padding-left: 8px;
}
    .input_text, .top .clff {
        display: inline;
    }
.clff {
    float: left;
    margin-right: 30px;
        height: 52px;
}
.clff span {
    float: left;
}
.clff:last-child {
    clear: both;
}

.clff:nth-child(4) {
    margin-top: 30px;
}
    .clff:nth-child(4) textarea {
        width: 683px;
        height: 120px;
        resize: none;
        border: 1px solid #efefef;
        padding: 8px;
        font-size: 16px;
        color: #333;
        text-align: left;
    }

.btn {
    width: 250px;
    height: 50px;
    background: #931E20;
    border: 1px solid #e5e5e5;
    font-size: 18px;
    color: #fff;
    line-height: 28px;
    text-align: center;
    vertical-align: bottom;
    margin-left: 12px;
    margin-top:100px;
}
.alert-success {
    font-size: 18px;
    padding: 50px 0px;
}
.invalid-feedback {
color:#931E20;
}

@media (max-width:576px) {
    div .bootstrap-large .container, div.bootstrap-large .container-fluid {
        padding: 0 15px;
    }


    .container {
        padding-bottom: 0;
    }

    .top {
        margin-top: 50px;
    }

        .top span {
            font-size: 18px;
            line-height: 24px;
            color: #686868;
            margin-right: 4px;
            margin-top: 8px;
        }

            .top span i {
                color: #ff0000;
            }

        .top input {
            width: 261px;
            height: 40px;
            border: 1px solid #efefef;
            font-size: 16px;
            color: #333;
            padding-left: 8px;
        }

        .input_text, .top .clff {
            display: inline;
            padding-bottom: 1rem;
        }

    .clff {
        float: left;
        margin-right: 0;
        height: 52px;
    }

    .clff span {
        float: left;
    }

    .clff:last-child {
        clear: both;
    }

    .clff:nth-child(4) {
        margin-top: 0;
    }

            .clff:nth-child(4) textarea {
                width: 260px;
                height: 120px;
                resize: none;
                border: 1px solid #efefef;
                padding: 8px;
                font-size: 16px;
                color: #333;
                text-align: left;
            }

    .btn {
        display: block;
        width: 250px;
        height: 50px;
        margin: 2rem auto 2rem;
    }

    .alert-success {
        font-size: 18px;
        padding: 50px 0px;
    }

    .invalid-feedback {
        color: #931E20;
    }
}