.banner {
    background-image: url("../img/banner_product.png");
    background-size: cover;
    background-position: right bottom;
}

body {
    background: white;
}

.banner h1 {
    font-family: Microsoft YaHei UI, Microsoft YaHei UI;
    font-weight: bold;
    font-size: 46px;
    color: #000000;
    line-height: 54px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    padding-top: 91px;
}

.left-tips {
    width: 270px;
    padding-left: 30px;
    font-family: PingFang SC, PingFang SC;
    font-weight: bold;
    font-size: 16px;
    color: #2B2C2F;
    margin-top: 107px;
    margin-bottom: 24px;
    line-height: 16px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.left-menu {
    width: 270px;
    min-height: 400px;
    background: white;
    box-shadow: 0px 4px 20px 0px rgba(0, 0, 0, 0.05);
    border-radius: 0px 0px 0px 0px;
    transition: all 0.3s ease;
    padding-top: 32px;
    padding-left: 14px;
    padding-right: 39px;
    padding-bottom: 32px;
}

.left-menu.fixed {
    position: fixed;
    top: 66px;
    left: 16%;
    z-index: 10;
    margin-top: 0;
}

.left-menu.stop {
    position: absolute;
    top: auto;
    bottom: 0;
    /* 吸附到底部 */
}

.left-menu ul {
    width: 100%;
}

.left-menu ul li {
    width: 100%;
}

.left-menu ul li button {
    width: 100%;
    padding-left: 32px;
    padding-right: 32px;
    padding-top: 14px;
    padding-bottom: 14px;
    font-family: Noto Sans SC, Noto Sans SC;
    font-weight: 600;
    font-size: 16px;
    color: #333333;
    line-height: 17px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    transition: background 0.3s ease;
    margin-bottom: 8px;
}

.left-menu ul li button:hover {
    /* background: #E4291C;
    color: #FFFFFF; */
    border-color: transparent;
}

.left-menu ul li button.active {
    background: #E4291C;
    color: #FFFFFF;
}

.right-content {
    /* min-height: 1000px; */
    margin-top: 95px;
    margin-left: 34px;
}

.right-content .title {
    font-family: Microsoft YaHei UI, Microsoft YaHei UI;
    font-weight: bold;
    font-size: 24px;
    color: #2B2C2F;
    line-height: 20px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    padding-bottom: 32px;
}

.desc-card {
    width: 307px;
    height: 212px;
    box-shadow: 0px 8px 16px 0px rgba(22, 23, 26, 0.05);
    border-radius: 0px 0px 0px 0px;
    margin-right: 20px;
    margin-bottom: 20px;
    transition: background 0.3s ease;
    padding-top: 36px;
    padding-left: 21px;
    padding-right: 21px;
    padding-bottom: 21px;
    background: url(../img/product_b.png);
    background-size: cover;
    background-position: center;
}

.desc-card:hover {
    box-shadow: 0px 15px 25px 0px rgba(22, 23, 26, 0.1);
}

.desc-title {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 18px;
    color: #2B2C2F;
    line-height: 16px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.desc-content {
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 14px;
    color: #545558;
    line-height: 16px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    /* 根据行高计算最大高度 */
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    /* 兼容WebKit浏览器 */
    line-clamp: 4;
    /* 标准属性 */
    margin-top: 20px;
}

.desc-card button {
    width: 88px;
    height: 30px;
    background: #E60012;
    border-radius: 3px 3px 3px 3px;
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
    line-height: 14px;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

.bottom-content {
    background: url(../img/bottom_b.png);
    background-size: cover;
    background-position: center;
}

.consulting {
    background: rgba(255, 255, 255, 0.5);
    width: 100%;
    height: 100%;
    padding: 45px;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.consulting h2 {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 22px;
    color: #000000;
    line-height: 26px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin-bottom: 9px;
}

.consulting p {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 12px;
    color: #2C2C2C;
    line-height: 14px;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

.consulting span {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 14px;
    color: #A5A5A5;
    line-height: 16px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin-left: 16px;
}

.consulting button {
    width: 92px;
    height: 30px;
    background: #E7170C;
    font-family: Microsoft YaHei UI, Microsoft YaHei UI;
    font-weight: bold;
    font-size: 12px;
    color: #FFFFFF;
    line-height: 14px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    border-radius: 0px 0px 0px 0px;
}

.bottom-content-left p {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 28px;
    color: #000000;
    line-height: 33px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.bottom-content-left span {
    color: #E7170C;
    margin-left: 5px;
}

.bottom-content-left .desc-p {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 16px;
    color: #999DA1;
    line-height: 19px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-top: 24px;
}

button {
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    /* border: 1px solid transparent; */
}

.right-content button:hover,
.bottom-content button:hover {
    background: transparent;
    border: 1px solid;
    border-color: #E7170C;
    color: #E7170C;
}