.content {
    width: 1200px;
    margin: 0 auto;
    margin-top: 160px;
    margin-bottom: 160px;
}

.content h1 {
    font-size: 40px;
    padding: 48px 0;
    font-weight: 500;
    border-bottom: solid 1px rgb(220, 220, 220);
}

.content_detail {
    width: 100%;
}

.content_detail::after {
    display: block;
    content: "";
    visibility: hidden;
    clear: both;
}

/* -----------------left--------------- */
.detail_left {
    width: 240px;
    float: left;
    outline: 4px solid rgb(248, 248, 248);
    padding: 8px;
    margin-top: 48px;
}

.detail_left ul {
    background-color: rgb(248, 248, 248);
}

.detail_left ul li {
    padding: 10px 16px;
}

.detail_left ul li:first-child {
    padding-top: 32px;
}

.detail_left ul li:last-child {
    padding-bottom: 32px;
}

.detail_left ul li a {
    display: block;
    height: 32px;
    line-height: 32px;
    border-radius: 16px;
    padding-left: 16px;
    color: rgb(80, 80, 80);
    background-color: rgb(248, 248, 248);
    transition: all 300ms ease;
}

.detail_left ul li a:hover {
    background-color: #ff6600;
    color: rgb(248, 248, 248);
}

.detail_left ul li a.detail_left_now {
    background-color: #ff6600;
    color: rgb(248, 248, 248);
}


/* -----------------right--------------- */
.detail_right {
    width: 880px;
    margin-top: 48px;
    float: right;
}

.detail_right h2 {
    font-size: 28px;
    padding: 0 0 24px 0;
}

.detail_right ul li {
    font-size: 20px;
    color: #ff6600;
    font-style: italic;
}

.detail_right ul li div {
    font-size: 20px;
    margin-bottom: 24px;
    font-style: normal;
}

.detail_right ul {
    margin-bottom: 48px;
}