/* 关于朗芯模块 - 完全独立样式+统一下划线 */
/* 注意：padding-top在carousel.css中统一控制，此处只设置底部padding */
#about-us.langxin-about {
    padding: 0 0 80px 0; /* 只保留底部padding */
    background: #c6c6c6;
    position: relative;
    z-index: auto;
    margin: 0 !important;
    border: none !important;
}

#about-us.langxin-about .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 标题区样式 */
#about-us.langxin-about .about-title-wrapper {
    text-align: center;
    margin-bottom: 50px;
}

#about-us.langxin-about .about-title-wrapper h2 {
    font-size: 42px;
    font-weight: bold;
    color: #222;
    margin-bottom: 15px;
    position: relative;
    font-family: "Microsoft Yahei", "PingFang SC", sans-serif;
}

#about-us.langxin-about .about-subtitle {
    font-size: 24px;
    color: #333;
    font-weight: 500;
    margin: 0;
    font-family: "Microsoft Yahei", "PingFang SC", sans-serif;
}

/* 核心布局容器 */
#about-us.langxin-about .intro-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    align-items: stretch;
    margin-top: 20px;
}

/* 左侧图片容器 */
#about-us.langxin-about .intro-img-box {
    flex: 0 0 450px;
    height: 450px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    position: relative;
}

#about-us.langxin-about .intro-img-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(22, 93, 255, 0.08), transparent);
    z-index: 1;
    pointer-events: none;
}

#about-us.langxin-about .intro-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
    display: block;
    transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

#about-us.langxin-about .intro-img-box:hover .intro-img {
    transform: scale(1.08);
}

/* 右侧内容容器 */
#about-us.langxin-about .intro-content-box {
    flex: 1;
    min-width: 500px;
    height: 450px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
}

/* 右侧分点内容容器 */
#about-us.langxin-about .intro-points {
    display: flex;
    flex-direction: column;
    gap: 25px;
    height: 100%;
    justify-content: center;
}

#about-us.langxin-about .point-item {
    padding-left: 20px;
    border-left: 4px solid #165DFF;
}

#about-us.langxin-about .point-item h3 {
    font-size: 22px;
    font-weight: 600;
    color: #165DFF;
    margin-bottom: 8px;
    font-family: "Microsoft Yahei", "PingFang SC", sans-serif;
}

#about-us.langxin-about .point-item p {
    font-size: 17px;
    line-height: 1.8;
    color: #333;
    margin: 0;
    font-family: "Microsoft Yahei", "PingFang SC", sans-serif;
}

/* 平板端适配（992px以下）- 保持左右布局 */
@media (max-width: 992px) {
    #about-us.langxin-about {
        /* margin-top在carousel.css中统一控制 */
        padding-top: 60px !important;
    }
    #about-us.langxin-about .container {
        padding: 0 10px;
    }
    #about-us.langxin-about .intro-wrapper {
        gap: 30px;
    }
    #about-us.langxin-about .intro-img-box {
        flex: 0 0 350px;
        height: 350px;
    }
    #about-us.langxin-about .intro-content-box {
        min-width: 350px;
        height: 350px;
    }
    #about-us.langxin-about .about-title-wrapper h2 {
        font-size: 36px;
    }
    #about-us.langxin-about .about-subtitle {
        font-size: 20px;
    }
    #about-us.langxin-about .point-item h3 {
        font-size: 20px;
    }
    #about-us.langxin-about .point-item p {
        font-size: 15px;
    }
}

/* 移动端适配（768px以下）- 改为上下布局 */
@media (max-width: 768px) {
    #about-us.langxin-about {
        padding: 40px 0;
        /* margin-top在carousel.css中统一控制 */
        padding-top: 40px !important;
    }
    #about-us.langxin-about .container {
        padding: 0 15px;
    }
    #about-us.langxin-about .about-title-wrapper {
        margin-bottom: 30px;
    }
    #about-us.langxin-about .about-title-wrapper h2 {
        font-size: 26px;
        margin-bottom: 10px;
    }
    #about-us.langxin-about .about-subtitle {
        font-size: 16px;
    }
    #about-us.langxin-about .intro-wrapper {
        flex-direction: column; /* 手机端改为上下布局 */
        flex-wrap: nowrap; /* 禁止换行 */
        gap: 25px;
        align-items: center;
    }
    #about-us.langxin-about .intro-img-box {
        flex: none;
        width: 100%;
        max-width: 400px;
        height: auto;
        aspect-ratio: 1 / 1;
    }
    #about-us.langxin-about .intro-img {
        height: 100%;
        object-fit: cover;
    }
    #about-us.langxin-about .intro-content-box {
        flex: none;
        min-width: auto;
        width: 100%;
        height: auto;
        gap: 16px;
        display: block; /* 移除桌面端的flex布局 */
    }
    #about-us.langxin-about .intro-points {
        gap: 16px;
        height: auto; /* 移除桌面端的100%高度 */
        justify-content: flex-start; /* 移除桌面端的居中 */
    }
    #about-us.langxin-about .point-item {
        padding-left: 12px;
        border-left-width: 3px;
    }
    #about-us.langxin-about .point-item h3 {
        font-size: 16px;
        margin-bottom: 6px;
    }
    #about-us.langxin-about .point-item p {
        font-size: 14px;
        line-height: 1.6;
    }
}

/* 小屏手机适配（576px以下）- 上下布局微调 */
@media (max-width: 576px) {
    #about-us.langxin-about {
        /* margin-top在carousel.css中统一控制 */
        padding-top: 30px !important;
        padding-bottom: 30px;
    }
    #about-us.langxin-about .about-title-wrapper h2 {
        font-size: 20px;
    }
    #about-us.langxin-about .about-subtitle {
        font-size: 13px;
    }
    #about-us.langxin-about .intro-wrapper {
        gap: 20px;
    }
    #about-us.langxin-about .intro-img-box {
        max-width: 280px;
    }
    #about-us.langxin-about .intro-content-box {
        gap: 12px;
    }
    #about-us.langxin-about .intro-points {
        gap: 12px;
    }
    #about-us.langxin-about .point-item {
        padding-left: 10px;
        border-left-width: 2px;
    }
    #about-us.langxin-about .point-item h3 {
        font-size: 14px;
        margin-bottom: 4px;
    }
    #about-us.langxin-about .point-item p {
        font-size: 12px;
        line-height: 1.5;
    }
}