.ft-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    /*顶部灰色线条*/
    border-top: 2px solid #e5e5e5;
}
.section {
    padding: 10px;
    box-sizing: border-box;
    width: 100%;
    text-align: left;
}
.section h2 {
    color: #343434;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
}
.section a {
    display: block;
    margin-bottom: 10px;
    text-decoration: none;
    color: #858585;
    font-size: 12px;
    font-weight: 400;
}

.section>form>label {
    display: inline-block;
}

.section form input {
    width: 225px;
    outline: none;
    height: 37px;
    line-height: 37px;
    font-size: 15px;
    transition: box-shadow .5s, border-color .25s ease-in-out;
    box-shadow: inset 0 1px 2px rgba(10, 10, 10, .1);
}
.section form button {
    width: 90px;
    height: 36px;
    background-color: #000;
    border: none;
    line-height: 28px;
    color: white;
    padding: 5px 0;
    cursor: pointer;
    position: relative;
    left: -5px;
    top: 2px;
}
@media screen and (min-width: 768px) {
    .ft-container {
        width: 1200px;
        margin: 0 auto;
    }
    .section {
        width: calc(23%);
    }
    .section:last-child {
        width: calc(31%);
    }
}

@media screen and (max-width: 480px) {
    .section > a {
        font-size: 15px !important;
        font-weight: 700 !important;
    }
    .section > h2 {
        font-size: 20px !important;
    }
}