.ty_container {
    max-width: 1440px;
    margin: 0 auto;
}

.ty_forum_title {
    text-align: center;
    margin:80px 0 40px;
}

.ty_forum_item {
    margin-bottom: 141px;
}
.ty_forum_item_img:hover {
    position: relative;
    transform: scale(1.06);
    transition: all 0.5s ease 0s;
    z-index: 9;
}
.ty_forum_item.col-xs-6 {
    padding: 0;
    box-sizing: border-box;
    padding: 0 12px;
    box-sizing: border-box;
}

.ty_forum_item_title {
    text-align: center;
    font-size: 24px;
    color: rgba(128, 65, 22, 1);
    margin-bottom: 30px;
}

.ty_forum_item_img {
    position: relative;
}

.ty_forum_item_img,
.ty_forum_item_img>img {
    width: 100%;
}

.ty_forum_item_text {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 120px;
    padding: 16px 22px;
    box-sizing: border-box;
    font-size: 16px;
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
}

/* 讲坛历程 */
.ty_course {
    margin: 48px 0 80px 0;
}

.ty_course_title {
    text-align: center;
    margin-bottom: 80px;
}

.ty_course_item {
    margin-bottom: 80px;
}

.ty_course_item_introduction {
    display: flex;
}

.introduction_left>img {
    width: 268px;
    height: 288px;
}

.introduction_right {
    width: 0;
    flex: 1;
    height: 288px;
    background: rgba(245, 245, 245, 1);
    padding: 31px 0 0 31px;
    box-sizing: border-box;
}

.introduction_right_title {
    font-size: 20px;
    color: black;
}

.introduction_right_name {
    font-size: 16px;
    color: rgba(0, 0, 0, 0.6);
    margin: 30px 0;
}

.ty_course_item_name {
    display: flex;
    width: 268px;
    margin-top: 30px;
    color: black;
}

.ty_course_item_name>span {
    font-size: 36px;
}

.line {
    display: inline-block;
    flex: 1;
    height: 2px;
    background-color: red;
    opacity: 0.5;
    margin-top: 25px;
    margin-left: 10px;
}
.ty_forum_title > img,
.ty_course_title > img{
    width: 791px;
    margin: 0 auto;
}