* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #f7f7f5;
    color: #333;
    /* max-width: 1200px; */
    margin: 0 auto;
}

.box1 {
    width: 100%;
    min-height: 686px;
    /* padding: 0 360px; */
    margin: auto;
    background-color: #ffffff;
}

.container {
    width: 1200px;
    display: flex;
    flex-wrap: wrap;
    /* gap: 30px; */
    padding-top: 45px;
    margin: auto;
}

.image-container {
    flex: 1;
    width: 647px;
    height: 390px;
    background-color: #108cda;
    /* overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); */
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
}

.content-container {
    flex: 1;
    width: 510px;
    height: 390px;
    margin-left: 43px;
}

.title {
    font-weight: 700;
    font-size: 30px;
    color: #3d3d3d;
    margin-bottom: 23px;
    margin-top: 10px;
}

.title span {
    color: #108cda;
}

.description {
    font-weight: 400;
    font-size: 14px;
    color: #808180;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 12;
    overflow: hidden;
}

.stats-container {
    width: 1200px;
    display: flex;
    justify-content: space-around;
    margin: auto;
    margin-top: 84px;
    gap: 20px;
    flex-wrap: wrap;
}

.stat-card {
    flex: 1;
    min-width: 200px;
    text-align: center;
    /* padding: 20px; */
    /* background: #f9f9f9; */
    border-radius: 12px;
    /* transition: transform 0.3s ease; */
}

/* .stat-card:hover {
            transform: translateY(-4px);
        } */

.stat-number {
    font-weight: bold;
    font-size: 48px;
    color: #108cda;
}

.stat-label {
    font-weight: 400;
    font-size: 16px;
    color: #808180;
}

.box2 {
    width: 100%;
    background-color: #f7f7f5;
}

.box2-container {
    max-width: 1200px;
    margin: auto;
    text-align: center;
    margin-bottom: 58px;
}

.box2-title {
    font-weight: 700;
    font-size: 36px;
    color: #3d3d3d;
    margin-top: 68px;
    margin-bottom: 10px;
}

.box2-title span,
.box3-title span,
.box4-title span,
.box5-title span {
    color: #108cda;
}

.tech_case {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: auto;
}

.tech-underline {
    width: 25px;
    height: 4px;
    border-radius: 24px;
    background-color: #108cda;
    margin: 0 4px;
}

.video-wrapper {
    position: relative;
    width: 800px;
    height: 450px;
    margin: auto;
    border-radius: 36px;
    margin-top: 64px;
    overflow: hidden;
    background-image: url(static/baimao.jpg);
    background-size: cover;
    background-position: center;
}

.play-button-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 238px;
    height: 238px;
    background-image: url(static/play.png);
    /* background-repeat: no-repeat; */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-button-overlay:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.box3 {
    width: 100%;
    height: 890px;
    background-color: #ffffff;
}

.box3-container {
    /* max-width: 1200px; */
    margin: auto;
    text-align: center;
}

.box3-title {
    font-weight: 700;
    font-size: 36px;
    color: #3d3d3d;
    padding-top: 75px;
    margin-bottom: 10px;
}

.box3_img {
    position: relative;
    width: 100%;
    height: 639px;
    margin-top: 110px;
}

.box3_img img {
    /* width: 100%; */
    height: 100%;
    object-fit: cover;
}

.box4 {
    width: 100%;
    background: #f7f7f5;
}

.box4-container {
    max-width: 1200px;
    margin: auto;
    text-align: center;
    margin-bottom: 40px;
    box-sizing: border-box;
}

.box4-title {
    font-weight: 700;
    font-size: 36px;
    color: #3d3d3d;
    padding-top: 69px;
    margin-bottom: 10px;
}

.box4-certificate {
    width: 100%;
    margin-top: 110px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 55px;
}

.box4-certificate img {
    height: 348px;
    border-radius: 6px;
    border: 1px solid #e5e5e5;
    background-size: cover;
    box-sizing: border-box;
}

.box5 {
    width: 100%;
    height: 578px;
    background: #ffffff;
}

.box5-container {
    max-width: 1200px;
    margin: auto;
    text-align: center;
}

.box5-title {
    font-weight: 700;
    font-size: 36px;
    color: #3d3d3d;
    padding-top: 58px;
    margin-bottom: 10px;
}

/* .box5 .tech_ase {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin: 12px 0 24px;
        } */

/* 图片卡片区域容器 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    /* padding: 0 20px; */
    margin-top: 79px;
}

@media (max-width: 1100px) {
    .image-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .image-grid {
        grid-template-columns: 1fr;
    }
}

/* 每张卡片样式，保持图片区域原有的图片效果基础上增强 */
.card {
    width: 291px;
    height: 302px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    text-align: left;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.12);
}

.card-image {
    position: relative;
    width: 291px;
    height: 177px;
    border-radius: 10px 10px 0px 0px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background-color: #108cda;
    transition: transform 0.5s ease;
}

/* .card:hover .card-image img {
            transform: scale(1.05);
        } */

.card-tag {
    position: absolute;
    left: 0;
    bottom: 0;
    background: #2a8af7;
    color: #fff;
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 0 8px 0 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.card-content {
    width: 291px;
    height: 125px;
    /* padding: 12px 14px 16px; */
}

.card-title {
    width: 275px;
    /* height: 19px; */
    font-weight: 500;
    font-size: 16px;
    color: #3c3e42;
    margin: 9px 8px 12px 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    /* line-height: 1.3; */
}

.card-desc {
    font-weight: 350;
    font-size: 14px;
    color: #808180;
    margin: 0 8px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.card-link {
    display: inline-flex;
    align-items: center;
    margin-top: 12px;
    font-weight: 350;
    font-size: 12px;
    color: #108cda;
    margin-left: 192px;
    text-decoration: none;
}

.history-item-0,
.history-item-1,
.history-item-2,
.history-item-3,
.history-item-4,
.history-item-5,
.history-item-6 {
    position: absolute;
    width: 230px;
    height: auto;
    font-weight: 400;
    font-size: 14px;
    color: #3d3d3d;
    /* background: rgba(16, 140, 218, 0.1686); */
}
.history-item-0 {
    left: 160px;
    top: 230px;
}
.history-item-1 {
    left: 430px;
    bottom: 540px;
}
.history-item-2 {
    left: 640px;
    bottom: 225px;
}
.history-item-3 {
    left: 820px;
    bottom: 510px;
}
.history-item-4 {
    left: 1030px;
    bottom: 185px;
}
.history-item-5 {
    left: 1280px;
    bottom: 440px;
}
.history-item-6 {
    left: 1520px;
    bottom: 260px;
}