.menu {
    width: 100%;
    height: 50px;
    background: #fff;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
}

.menu .cont{
    width: 1200px;
    margin: 0 auto;
}
.menu_img {
    transform: rotate(180deg);
    cursor: pointer;
}

.menu_title {
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #333333;
}
.nav_a:last-child .name {
    font-weight: 500;
    color: #ff4c3f;
}
.nametwo {
    font-weight: 500;
}