/* ===== 关于我们页面 ===== */

/* 面包屑 */
.about-breadcrumb {
    padding: 15px 0;
    font-size: 13px;
    color: #888;
}
.about-breadcrumb a {
    color: #666;
    text-decoration: none;
}
.about-breadcrumb a:hover {
    color: #2e75be;
}
.about-breadcrumb span {
    color: #333;
}
.about-breadcrumb .bc-sep {
    margin: 0 6px;
    color: #ccc;
}

/* 通用区块标题 */
.about-section-title {
    font-size: 28px;
    font-weight: bold;
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}
.about-section-title .title-en {
    display: block;
    font-size: 14px;
    font-weight: normal;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 5px;
}
.about-title-line {
    width: 50px;
    height: 3px;
    background: #2e75be;
    margin: 15px auto 40px;
}

/* ===== 公司简介区块 ===== */
.about-intro {
    padding: 60px 0;
    background: #fff;
}
.about-intro .Contain {
    display: flex;
    align-items: flex-start;
    gap: 50px;
}
.about-intro-left {
    flex: 1;
    min-width: 0;
}
.about-intro-left .intro-label {
    font-size: 14px;
    color: #2e75be;
    font-weight: bold;
    margin-bottom: 10px;
    letter-spacing: 1px;
}
.about-intro-left .intro-title {
    font-size: 30px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.3;
}
.about-intro-left .intro-text {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    text-align: justify;
}
.about-intro-left .intro-text p {
    margin-bottom: 12px;
}
.about-intro-right {
    width: 480px;
    flex-shrink: 0;
}
.about-intro-right .intro-video {
    width: 100%;
    aspect-ratio: 16/9;
    background: #e8e8e8;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}
.about-intro-right .intro-video video,
.about-intro-right .intro-video img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.about-intro-right .intro-video .play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 102, 0, 0.85);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}
.about-intro-right .intro-video .play-btn:hover {
    background: #2e75be;
    transform: translate(-50%, -50%) scale(1.1);
}
.about-intro-right .intro-video .play-btn::after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

/* ===== 核心优势区块 ===== */
.about-advantage {
    padding: 60px 0;
    background: #f5f5f5;
}
.about-advantage .advantage-wrap {
    display: flex;
    align-items: flex-start;
    gap: 40px;
}
.advantage-left {
    width: 420px;
    flex-shrink: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}
.advantage-left .adv-img-item {
    border-radius: 6px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: #e0e0e0;
}
.advantage-left .adv-img-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s;
}
.advantage-left .adv-img-item:hover img {
    transform: scale(1.05);
}
.advantage-right {
    flex: 1;
    min-width: 0;
}
.advantage-right .adv-sub-title {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #2e75be;
    display: inline-block;
}
.advantage-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.advantage-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px dashed #e0e0e0;
}
.advantage-list li:last-child {
    border-bottom: none;
}
.advantage-list .adv-icon {
    width: 36px;
    height: 36px;
    background: #2e75be;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}
.advantage-list .adv-icon svg {
    width: 18px;
    height: 18px;
    fill: #fff;
}
.advantage-list .adv-text {
    flex: 1;
}
.advantage-list .adv-text h4 {
    font-size: 16px;
    color: #333;
    font-weight: bold;
    margin: 0 0 4px 0;
}
.advantage-list .adv-text p {
    font-size: 13px;
    color: #888;
    line-height: 1.6;
    margin: 0;
}

/* ===== 荣誉资质区块 ===== */
.about-honor {
    padding: 60px 0;
    background: #f5f5f5;
}
.honor-carousel-wrap {
    position: relative;
    overflow: hidden;
    margin: 0 50px;
}
.honor-carousel {
    display: flex;
    gap: 20px;
    transition: transform 0.4s ease;
}
.honor-carousel .honor-item {
    flex: 0 0 calc((100% - 80px) / 5);
    text-align: center;
}
.honor-carousel .honor-item img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    display: block;
    border-radius: 4px;
    border: 1px solid #e0e0e0;
    background: #fff;
}
.honor-carousel .honor-item .honor-name {
    font-size: 13px;
    color: #666;
    margin-top: 10px;
    line-height: 1.4;
}
.honor-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(0,0,0,0.4);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 5;
}
.honor-arrow:hover {
    background: #2e75be;
}
.honor-arrow svg {
    width: 18px;
    height: 18px;
    fill: #fff;
}
.honor-arrow-left {
    left: -50px;
}
.honor-arrow-right {
    right: -50px;
}
.about-honor:hover .honor-arrow-left {
    left: 0;
}
.about-honor:hover .honor-arrow-right {
    right: 0;
}

/* ===== 展会活动区块 ===== */
.about-exhibition {
    padding: 60px 0;
    background: #fff;
}
.exhibition-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}
.exhibition-grid .exh-item {
    border-radius: 6px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: #f0f0f0;
    position: relative;
    cursor: pointer;
}
.exhibition-grid .exh-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s;
}
.exhibition-grid .exh-item:hover img {
    transform: scale(1.05);
}
.exhibition-grid .exh-item .exh-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 12px;
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
    opacity: 0;
    transition: opacity 0.3s;
}
.exhibition-grid .exh-item:hover .exh-overlay {
    opacity: 1;
}
.exhibition-grid .exh-item .exh-overlay span {
    color: #fff;
    font-size: 13px;
}

/* ===== 数据统计条 ===== */
.about-stats {
    padding: 40px 0;
    background: #2e75be;
}
.about-stats .stats-grid {
    display: flex;
    justify-content: center;
    gap: 80px;
}
.about-stats .stat-item {
    text-align: center;
}
.about-stats .stat-num {
    font-size: 42px;
    font-weight: bold;
    color: #fff;
    line-height: 1.2;
}
.about-stats .stat-num .stat-unit {
    font-size: 18px;
    font-weight: normal;
}
.about-stats .stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    margin-top: 5px;
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
    .about-intro .Contain {
        flex-direction: column;
    }
    .about-intro-right {
        width: 100%;
    }
    .about-advantage .advantage-wrap {
        flex-direction: column;
    }
    .advantage-left {
        width: 100%;
    }
    .honor-carousel .honor-item {
        flex: 0 0 calc((100% - 40px) / 3);
    }
    .exhibition-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-stats .stats-grid {
        gap: 40px;
        flex-wrap: wrap;
    }
}
@media screen and (max-width: 768px) {
    .about-intro {
        padding: 40px 0;
    }
    .about-advantage,
    .about-honor,
    .about-exhibition {
        padding: 40px 0;
    }
    .about-section-title {
        font-size: 22px;
    }
    .about-intro-left .intro-title {
        font-size: 24px;
    }
    .honor-carousel .honor-item {
        flex: 0 0 calc((100% - 20px) / 2);
    }
    .exhibition-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-stats .stat-num {
        font-size: 32px;
    }
    .about-stats .stats-grid {
        gap: 20px;
    }
}