body{
    background: #fafafa;
}

.banner-con{
    background: url(../images/about-banner.jpg) no-repeat;
    background-size: cover;
    min-height: 700px;
}
.banner-con .banner{
    width: 100%;
}
.banner-con .banner .sub-title{
    color: #b02d2c;
    font-size: 24px;
}
.banner-con .banner .desc{
    max-width: 540px;
    line-height: 2;
}

.services-con {
    background: #f2f2f2;
}
.services-con .services p{
    margin-bottom: 0;
    padding: 20px 0;
}
.services-con .services li:not(:last-child) p{
    padding-right: clamp(30px , 4.2vw, 80px);
}
.services-con .services p:first-child{
    border-bottom: 1px solid #d9d9d9;
    font-weight: bold;
}
.kehu-con,.products-con{
    background: #ffffff;
}
.kehu-con .desc{
    line-height: 2;
    color: #666666;
}
.kehu-con ul{
    text-align: center;
    gap: 30px;
}
.kehu-con ul p{
    margin-bottom: 0;
    padding: 20px;
    background: #f2f2f2;
}
.kehu-con ul p span{
    color: #b02d2c;
    font-size: 24px;
    font-weight: bold;
}
.products-con .products{
    gap: clamp(30px , 4.2vw, 80px);
}
.products-con .products .text{
    max-width: 630px;
}
.products-con .products .text h2{
    line-height: 1.5;
}
.products-con .products .text .desc{
    line-height: 2;
    color: #666666;
}
.products-con .products .text a{
    color: #ffffff;
    background: #b02d2c;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 200px;
    height: 40px;
}
.products-con .products .img-text{
    text-align: center;
    flex-shrink: 0;
    max-width: 50%;
}
.products-con .products .img-text p{
    margin-bottom: 0;
    padding: 20px;
    background: #f2f2f2;
}


/* 总包裹容器 */
.history-integration-container {
    position: relative;
    padding: 20px 0;
}

/* ================= 上方卡片样式 ================= */
.card-swiper {
    margin-bottom: 40px;
}
/* 卡片未激活时的半透明/微缩效果（原图质感） */
.card-swiper .swiper-slide {
    opacity: 1; 
    transform: none !important; 
    transition: opacity 0.3s ease;
}
/* 可选：让滑过去、变成历史的卡片稍微变淡一点，突出当前的 */
.card-swiper .swiper-slide-prev {
    opacity: 0.4;
}
.card-swiper .swiper-slide-active {
    opacity: 1 !important;
    transform: scale(1);
}
.history-card {
    background: #fff;
    border: 1px solid #f0f0f0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}
.card-img img { width: 100%; height: 220px; object-fit: cover; display: block; }
.card-content { padding: 25px 20px; min-height: 140px; }
.card-content h4 { font-size: 16px; color: #333; margin: 0 0 12px 0; font-weight: bold; }
.card-content p { font-size: 13px; color: #666; line-height: 1.6; margin: 0; }

/* ================= 下方日期轴样式 ================= */
.date-swiper {
    position: relative;
    padding: 10px 0 30px 0 !important;
    margin: 0 auto !important;
}

/* 贯穿两边的红线：放在 slide 的下面，作为时间轴背景 */
.timeline-line {
     position: absolute;
    left: 0;
    bottom: 34px; 
    width: 100%;
    height: 2px;
    background: #b52b24; 
    z-index: 1;
}

/* 每个日期节点的基础布局 */
.date-node {
   display: flex;
    flex-direction: column;
    align-items: center; /* 轴心改为靠左 */
    padding-left: 5px; /* 微调红点与卡片边缘的间距 */
    cursor: pointer;
}

/* 默认未选中的日期字样 */
.date-node .year-text {
    font-size: 16px;
    color: #999;
    font-weight: bold;
    margin-bottom: 12px;
    transition: all 0.4s ease;
}
/* 默认未选中时的小红点 */
.date-node .bullet-dot {
    width: 8px;
    height: 8px;
    background: #b52b24;
    border-radius: 50%;
    z-index: 2;
    border: 2px solid #fff; /* 用白边遮挡底线 */
    transition: all 0.4s ease;
}

/* 🛑 当该日期被同步激活时的放大、变色特效 */
.date-swiper .swiper-slide-active .year-text {
 color: #b52b24;
    font-weight: bold;
}
.date-swiper .swiper-slide-active .bullet-dot {
     background: #b52b24;
    box-shadow: 0 0 0 4px rgba(181, 43, 36, 0.2);
}

/* ================= 左右切换圆圈按钮 ================= */
.history-prev, .history-next {
    width: 20px !important;
    height: 20px !important;
    border: 2px solid #b52b24 !important;
    border-radius: 50%;
    top: auto !important;
    bottom: 25px !important; /* 精准定位在时间轴水平线上 */
    z-index: 10;
    background: #b52b24;
}
.history-prev { left: 0px !important; }
.history-next { right: 0px !important; }
.history-prev::after, .history-next::after {
    font-size: 12px !important;
    color: #ffffff !important;
    font-weight: bold;
}

.history-con{
    background: #f2f2f2;
}

.slogan-con{
    background: linear-gradient(135deg,#0c2442,#060a0c);
    margin-bottom: clamp(30px , 4.2vw, 80px);
}
.slogan-con h2{
    color: #ffffff;
}
.slogan-con .desc{
    color: #666666;
}
.slogan-con .left-right-con{
    gap: 30px;
}
.slogan-con .left-right-con .left-con,.slogan-con .right-con{
    gap:30px;
    flex: 1;
}
.slogan-con .left-right-con ul{
    gap: 30px;
    margin-bottom: 0;
}
.slogan-con .left-right-con ul li{
    background: #ffffff;
    flex: 1;
    padding: 30px;
}
.slogan-con .left-right-con ul li p:nth-of-type(1){
    margin-top: 10px;
}
.slogan-con .left-right-con .left-con ul li:first-child .icon:before{
    content: "";
    background: url(../images/slogan-icon1.png) no-repeat;
    width: 18px;
    height: 22px;
    display: block;
}
.slogan-con .left-right-con .left-con ul li:last-child .icon:before{
    content: "";
    background: url(../images/slogan-icon2.png) no-repeat;
    width: 18px;
    height: 22px;
    display: block;
}
.slogan-con .left-right-con .right-con ul li:first-child .icon:before{
    content: "";
    background: url(../images/slogan-icon3.png) no-repeat;
    width: 20px;
    height: 20px;
    display: block;
}
.slogan-con .left-right-con .right-con ul li:last-child .icon:before{
    content: "";
    background: url(../images/slogan-icon4.png) no-repeat;
    width: 22px;
    height: 21px;
    display: block;
}
.swiper-button-next.swiper-button-disabled, .swiper-button-prev.swiper-button-disabled{
    opacity: 1;
}

@media (max-width:1080px){
    .banner-con{
        min-height: 330px;
    }
    .w1600 .w1400{
    padding-left: 0;
    padding-right: 0;
}
}

@media (max-width:768px){
    .services-con ul{
        flex-wrap: wrap;
    }
     .services-con ul li{
        width: 50%;
     }
     .kehu-con ul{
        gap: 15px;
     }
     .slogan-con .left-right-con,.slogan-con .left-right-con .left-con, .slogan-con .right-con,.slogan-con .left-right-con ul{
        gap: 15px;
     }
     .slogan-con .left-right-con ul li{
        padding: 15px;
     }
}

@media (max-width:600px){
    .products-con .products,.slogan-con .left-right-con{
        flex-direction: column;
    }
    .products-con .products .img-text{
        max-width: 100%;
    }
}

@media (max-width:500px){
    .kehu-con ul{
        flex-direction: column;
    }
    .services-con ul{
        flex-direction: column;
    }
    .services-con ul li{
        width: 100%;
    }
    .services-con .services li:not(:last-child) p{
        padding-right: 0;
    }
}