/* ===================================
   LD页面样式 - ld.html
   =================================== */
/* 移除body的背景色设置，让它继承全局的背景图 */
body {
    margin: 0;
    padding: 0;
}

/* 为各个section设置背景色，避免出现黑色毛边 */
.ld-section,
.ld-platforms,
.ld-methods,
.ld-ai-section,
.ld-xai-section,
.ld-integration-section,
.ld-bottom-section {
    background-color: #f0f0f0;
}

.wid {
    margin: 0 auto;
    padding-left: 0px;
    padding-right: 0px;
    max-width: 1600px;
    width: 100%;
}

/* Banner Section */
.ld-banner {
    position: relative;
    width: 100%;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
}

.ld-banner-content {
    position: relative;
    width: 100%;
    padding: 0;
}

/* 背景图片层 */
.ld-banner-bg {
    width: 100%;
    position: relative;
}

.ld-banner-bg img {
    width: 100%;
    height: auto;
    display: block;
}

/* 视频叠加层 */
.ld-banner-video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /*width: 100%;*/
    max-width: 800px;
    z-index: 2;
}

.ld-video-player {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* EDA FOR AI Section */
.ld-section {
    padding: 50px 80px;
    text-align: center;
}

.ld-eda-intro {
    background: #fff
}

.ld-section-title {
    font-size: 46px;
    color: #005ead;
    margin-bottom: 30px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
}

.ld-section-title.white {
    color: #005ead;
    text-align: center;
}

.ld-section-subtitle {
    font-size: 18px;
    color: #515151;
    line-height: 1.8;
    max-width: 1200px;
    margin: 0 auto;
    letter-spacing: 1px;
}

/* 通用标题样式 */
.ld-subtitle {
    font-size: 32px;
    color: #1e1e1e;
    text-align: center;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 3px;
}

.ld-desc {
    text-align: center;
    font-size: 16px;
    color: #747474;
    line-height: 1.8;
    max-width: 1200px;
    margin: 0 auto;
    letter-spacing: 1px;
    padding-bottom: 50px;
}

/* 三大EDA平台 */
.ld-platforms {
    padding: 0 0 50px 0;
    background: #ffffff;
}

.ld-platform-cards {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    max-width: 1024px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.ld-platform-card {
    flex: 1;
    min-width: 0;
    /*background: linear-gradient(145deg, #2c3e50 0%, #3f5a7c 100%);*/
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.4s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.ld-platform-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.25);
}

.ld-card-img-wrapper {
    position: relative;
    width: 100%;
    /* 移除固定宽高比，让卡片根据图片实际高度自适应 */
    height: auto;
    overflow: hidden;
    /*background: #1a2a3a;*/
}

.ld-card-img-wrapper img {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.ld-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 20px;
    text-align: center;
    letter-spacing: 2px;
    /*background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);*/
}

/* Default content (title, subtitle, button) */
.ld-card-default {
    opacity: 1;
    transition: opacity 0.4s ease;
}

/* Hover text (two lines of description) */
.ld-card-hover-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    padding: 0px 0px 20px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.ld-card-hover-text p {
    font-size: 14px;
    color: #fff;
    margin-bottom: 12px;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.5px;
}

.industry-solutions .title strong {
    font-size: 32px;
    color: #1e1e1e;
    text-align: center;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 3px;
    background: #1d1d1d;
    -webkit-background-clip: text;
}

.industry-solutions p {
    /*text-align: center;*/
    /*font-size: 16px;*/
    /*line-height: 1.8;*/
    /*letter-spacing: 1px;*/
}



/* Desktop hover effect */
@media (hover: hover) and (pointer: fine) {
    .ld-platform-card:hover .ld-card-default {
        opacity: 0;
    }

    .ld-platform-card:hover .ld-card-hover-text {
        opacity: 1;
    }

    .ld-platform-card:hover .ld-btn {
        opacity: 0;
    }
}

.ld-card-content {
    padding: 30px 25px;
    text-align: center;
    background: linear-gradient(135deg, #34495e 0%, #2c3e50 100%);
}

.ld-card-overlay h4 {
    font-size: 26px;
    color: #fff;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: 4px;
}

.ld-card-overlay p {
    font-size: 16px;
    color: #fff;
    margin-bottom: 15px;
    /*font-weight: 600;*/
    line-height: 1.4;
    /* 默认显示描述文本 */
    opacity: 1;
    transition: opacity 0.4s ease;
}

.ld-card-content p {
    font-size: 16px;
    color: #b8c5d6;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.ld-btn {
    display: inline-block;
    padding: 8px 70px;
    background: #fff;
    color: #3f4a9a;
    text-decoration: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.4s ease;
    box-shadow: 0 4px 15px rgba(16, 116, 194, 0.3);
    opacity: 1;
    margin-top: 30px;
}

.ld-btn:hover {
    background: linear-gradient(90deg, #00aeff 0%, #1074c2 100%);
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(16, 116, 194, 0.5);
}

/* 六大解决方案 */

/* 行业解决方案区域 */
.industry-solutions {
    background: #fff;
    padding: 0;
    max-width: 1600px;
    width: 100%;
    margin: auto;
    padding: 50px 0 50px 0;
}

.ld-methods {
    padding: 50px 0;
    background: linear-gradient(180deg, #e8f0f8 0%, #f5f7fa 100%);
}

.ld-method-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 80px;
}

.ld-method-item {
    background: linear-gradient(145deg, #2e4a6b 0%, #1a2f47 100%);
    padding: 35px 20px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.4s ease;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateY(30px);
}

.ld-method-item.ld-fade-in {
    opacity: 1;
    transform: translateY(0);
    animation: slideUp 0.6s ease forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ld-method-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
    background: linear-gradient(145deg, #3a5a7f 0%, #2a4060 100%);
}

.ld-method-item.ld-method-active {
    transform: scale(0.95);
}

.ld-method-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.ld-method-item:hover .ld-method-icon {
    background: rgba(0, 174, 255, 0.2);
    transform: rotate(360deg);
}

.ld-method-icon img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.ld-method-item h5 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 1px;
}

.ld-method-btn {
    display: inline-block;
    padding: 6px 18px;
    background: linear-gradient(90deg, #1074c2 0%, #00aeff 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.ld-method-btn:hover {
    background: linear-gradient(90deg, #00aeff 0%, #1074c2 100%);
    transform: scale(1.1);
}

/* EDA+AI Section */
.ld-ai-section {
    padding: 50px 80px 0px 80px;
    background: #f0f0f0;
    position: relative;
    overflow: hidden;

}

.ld-ai-desc {
    font-size: 18px;
    color: #515151;
    text-align: center;
    line-height: 1.8;
    max-width: 1000px;
    margin: 0 auto;
    letter-spacing: 1px;
}

/* 多智能体平台 XAI */
.ld-xai-section {
    padding: 50px 80px 50px 80px;
    background: #f0f0f0;
}

.ld-xai-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1240px;
    margin: 0 auto;
    border: 2px solid #d0dae6;
    border-radius: 8px;
    background: #fff;
}

.ld-xai-item {
    text-align: center;
    padding: 40px 25px;
    /*background: linear-gradient(145deg, #f8fafc 0%, #e8f0f8 100%);*/
    border-radius: 12px;
    transition: all 0.4s ease;
    cursor: pointer;
    /*box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);*/
    opacity: 0;
    transform: translateY(30px);
}

.ld-xai-item.ld-fade-in {
    opacity: 1;
    transform: translateY(0);
    animation: slideUp 0.6s ease forwards;
}

.ld-xai-item:hover {
    transform: translateY(-10px);
}

.ld-xai-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1074c2 0%, #00aeff 100%);
    border-radius: 50%;
    transition: all 0.4s ease;
}

.ld-xai-icon.ld-icon-bounce {
    animation: bounce 0.6s ease;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    25% {
        transform: translateY(-10px);
    }

    50% {
        transform: translateY(-5px);
    }

    75% {
        transform: translateY(-7px);
    }
}



.ld-xai-item h5 {
    font-size: 20px;
    color: #005ead;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 1px;
}

.ld-xai-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    letter-spacing: 0.5px;
}

/* 深度数据集成 */

.ld-integration-section {
    padding: 0px 80px 50px 80px;
    background: #f0f0f0;
}

.ld-integration-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1240px;
    margin: 0 auto;
}

.ld-integration-item {
    background: linear-gradient(171deg, #4969b1 0%, #1a2b4e 100%);
    padding: 40px 32px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateY(30px);
}

.ld-integration-item.ld-fade-in {
    opacity: 1;
    transform: translateY(0);
    animation: slideUp 0.6s ease forwards;
}

.ld-integration-icon {
    margin: 0 auto 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ld-integration-icon img {
    width: 70%;
    height: 70%;
    object-fit: contain;
}

.ld-integration-item h5 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 1px;
}

.ld-integration-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    text-align: left;
    letter-spacing: 0.3px;
}

/* 底部三栏文字 */
.ld-bottom-section {
    padding: 0px 80px 50px 80px;
    background: #f0f0f0;

}

.ld-bottom-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 100px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 50px;
    background: #ffffff;
    border: 2px solid #d0dae6;
    border-radius: 8px;
}

.ld-bottom-item {
    padding: 0;
    background: transparent;
    opacity: 0;
    transform: translateY(30px);
}

.ld-bottom-item.ld-fade-in {
    opacity: 1;
    transform: translateY(0);
    animation: slideUp 0.6s ease forwards;
}

.ld-bottom-item h4 {
    font-size: 22px;
    color: #005ead;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: 1.5px;
    position: relative;
    padding-bottom: 20px;
    text-align: center;
}

.ld-bottom-item h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 184px;
    height: 0.5px;
    background: linear-gradient(to right, transparent 0%, #005ead 50%, transparent 100%);
}

.ld-bottom-item p {
    font-size: 14px;
    color: #333;
    line-height: 1.8;
    letter-spacing: 0.3px;
    text-align: left;
}





/* 响应式设计 */
@media screen and (max-width: 1400px) {
    .ld-platform-cards {
        gap: 30px;
    }

    .ld-method-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }

    .ld-xai-grid,
    .ld-integration-grid {
        gap: 30px;
    }
}

@media screen and (max-width: 1024px) {

    /* 通用内边距调整 */
    .ld-section {
        padding: 40px 40px;
    }

    .ld-platforms,
    .ld-ai-section,
    .ld-xai-section,
    .ld-integration-section,
    .ld-bottom-section {
        padding: 40px 40px;
    }

    /* 标题字体调整 */
    .ld-section-title {
        font-size: 36px;
        margin-bottom: 25px;
        letter-spacing: 3px;
    }

    .ld-subtitle {
        font-size: 30px;
        margin-bottom: 18px;
        letter-spacing: 2px;
    }

    .ld-section-subtitle,
    .ld-ai-desc {
        font-size: 16px;
        line-height: 1.7;
    }

    .ld-desc {
        font-size: 15px;
        margin-bottom: 40px;
    }

    /* 三大EDA平台 - 保持3列，缩小间距 */
    .ld-platform-cards {
        gap: 20px;
    }

    .ld-platform-card {
        flex: 1;
        min-width: 0;
    }

    /* 底部三栏改为单列 */
    .ld-bottom-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 30px;
    }

    .ld-bottom-item h4 {
        font-size: 20px;
    }
}

.industry-solutions {
    padding-left: 20px;
    padding-right: 20px;
}

/* ===================================
   中等屏幕：769px ~ 950px 专用样式
   =================================== */
@media screen and (min-width: 769px) and (max-width: 950px) {

    /* 通用内边距调整 */
    .ld-section {
        padding: 40px 30px;
    }

    .ld-platforms,
    .ld-ai-section,
    .ld-xai-section,
    .ld-integration-section,
    .ld-bottom-section {
        padding: 40px 50px;
    }

    /* 标题字体微调 */
    .ld-section-title {
        font-size: 32px;
        letter-spacing: 2.5px;
    }

    .ld-subtitle {
        font-size: 28px;
        letter-spacing: 1.8px;
    }

    .ld-section-subtitle,
    .ld-ai-desc,
    .ld-desc {
        font-size: 15px;
        line-height: 1.75;
        margin-bottom: auto;
    }

    .industry-solutions p {
        font-size: 15px;
        line-height: 1.75;
        text-align: center;
        /*color: #515151;*/
        max-width: 1200px;
        margin: 0 auto;
        letter-spacing: 1px;
    }



    .industry-solutions .title strong {
        font-size: 28px;
    }



    /* 三大EDA平台：保持3列，但控制卡片最小宽度 */
    .ld-platform-cards {
        /*gap: 20px;*/
        /*padding: 0 20px;*/
    }

    .ld-platform-card {
        flex: 1 1 calc(33.333% - 14px);
        /* 防止 flex 拉伸过度 */

    }

    /* 六大解决方案：改为 2 列 */
    .ld-method-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
        padding: 0 40px;
    }

    .solution-cards {
        padding-left: 10px;
        padding-right: 10px;



    }

    /* XAI 多智能体平台：2 列 */
    .ld-xai-grid,
    .ld-integration-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        padding: 0 40px;
    }

    /* 底部三栏：保持 2 列或 3 列？建议 2 列更安全 */
    .ld-bottom-grid {
        /*grid-template-columns: repeat(2, 1fr);*/
        gap: 50px;
        padding: 40px;
    }

    /* Banner 视频尺寸微调 */
    .ld-banner-video {
        max-width: 600px;
    }

    /* 按钮等交互元素保持可见（桌面行为） */
    .ld-btn {
        display: inline-block !important;
        /* 防止被移动端隐藏 */
        padding: 8px 50px;
        font-size: 16px;
    }

    .ld-card-overlay h4 {
        font-size: 20px;
        color: #fff;
        font-weight: 400;
        line-height: 1.2;
        letter-spacing: 1px;
    }

    .ld-card-overlay {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 15px 20px;
        text-align: center;
        letter-spacing: 2px;
    }

    /* 确保悬停效果可用（因为是桌面/带鼠标的设备） */
    /*@media (hover: hover) and (pointer: fine) {*/
    /*    .ld-platform-card:hover .ld-card-default {*/
    /*        opacity: 0;*/
    /*    }*/
    /*    .ld-platform-card:hover .ld-card-hover-text {*/
    /*        opacity: 1;*/
    /*    }*/
    /*}*/
    .ld-platform-card:hover {
        transform: none;
        box-shadow: 0 15px 45px rgba(0, 0, 0, 0.25);
    }
}


@media screen and (max-width: 768px) {

    /* 通用内边距大幅缩小 */
    .ld-section {
        padding: 30px 20px;
    }

    .ld-platforms {
        padding: 30px 20px;
    }

    .ld-ai-section {
        padding: 30px 20px 0 20px;
    }

    .ld-xai-section {
        padding: 30px 20px;
    }

    .ld-integration-section {
        padding: 30px 20px;
    }

    .ld-bottom-section {
        padding: 0 20px 30px 20px;
    }

    /* Banner视频优化 */
    .ld-banner-video {
        /*width: 70%;*/
        max-width: 400px;
    }

    .ld-video-player {
        border-radius: 4px;
    }

    .ld-banner-bg img {
        height: 228px;
        object-fit: cover;
    }

    /* 标题字体进一步缩小 */
    .ld-section-title {
        font-size: 28px;
        margin-bottom: 20px;
        letter-spacing: 2px;
    }

    .ld-subtitle {
        font-size: 24px;
        margin-bottom: 15px;
        letter-spacing: 1.5px;
    }

    .ld-section-subtitle {
        font-size: 14px;
        line-height: 1.8;
        padding: 0 10px;
    }

    .ld-section-subtitle br {
        display: none;
        /* 移除强制换行，让文字自然流动 */
    }

    .ld-desc {
        font-size: 14px;
        margin-bottom: 30px;
        padding: 0 10px;
    }

    .ld-desc br {
        display: none;
    }

    .ld-ai-desc {
        font-size: 14px;
        line-height: 1.8;
        padding: 0 10px;
    }

    .ld-ai-desc br {
        display: none;
    }

    /* 三大EDA平台 - 改为单列展示 */
    .ld-platforms {
        padding: 30px 15px;
    }

    .ld-platform-cards {
        flex-direction: column;
        gap: 30px;
    }

    .ld-platform-card {
        width: 100%;
        max-width: 300px;
        margin: 0 auto 30px;
        background: linear-gradient(180deg, #516395 0%, #614385 100%);
        border-radius: 12px;
        overflow: hidden;
        display: block;
    }

    .ld-card-img-wrapper {
        position: relative;
        width: 100%;
        height: 350px;
        background: transparent;
        overflow: hidden;
    }

    .ld-card-img-wrapper img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .ld-card-overlay {
        /*position: relative;*/
        padding: 30px 20px;
        /*background: rgba(0, 0, 0, 0.3);*/
        /* 确保所有卡片内容区域高度一致 */
        min-height: 150px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    .ld-card-overlay h4 {
        font-size: 22px;
        margin-bottom: 10px;
        color: #fff;
        font-weight: bold;
    }

    /* 在移动端显示所有内容，隐藏按钮 */
    .ld-card-default p {
        display: block;
        font-size: 14px;
        margin-bottom: 10px;
        color: #fff;
    }

    /* 隐藏按钮 */
    .ld-btn {
        display: none !important;
    }

    /* 显示悬停内容 */
    .ld-card-hover-text {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        transform: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        display: block !important;
        padding: 0 !important;
        width: 100% !important;
        margin-top: 10px;
    }

    .ld-card-hover-text p {
        font-size: 13px;
        margin-bottom: 10px;
        color: rgba(255, 255, 255, 0.9);
    }

    /* ========== 移动端禁用所有悬停效果 ========== */

    /* 平台卡片 */
    .ld-platform-card:hover .ld-card-default {
        opacity: 1 !important;
    }

    .ld-platform-card:hover .ld-card-hover-text {
        opacity: 1 !important;
    }

    .ld-platform-card:hover {
        transform: none !important;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15) !important;
    }

    /* 按钮 */
    .ld-btn:hover,
    .ld-method-btn:hover {
        transform: none !important;
    }

    /* 方法项 */
    .ld-method-item:hover {
        transform: none !important;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15) !important;
        background: linear-gradient(145deg, #2e4a6b 0%, #1a2f47 100%) !important;
    }

    .ld-method-item:hover .ld-method-icon {
        background: rgba(255, 255, 255, 0.1) !important;
        transform: none !important;
    }

    /* XAI项 */
    .ld-xai-item:hover {
        transform: none !important;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08) !important;
        background: linear-gradient(145deg, #f8fafc 0%, #e8f0f8 100%) !important;
    }

    /* 集成项 */
    .ld-integration-item:hover {
        transform: none !important;
    }

    /* 六大行业解决方案 - 轮播优化 */
    .ld-methods {
        padding: 30px 20px;
    }

    .industry-solutions {
        padding: 25px 0 25px 0;
    }

    .industry-swiper-container {
        padding: 0 20px;
        margin: 0 -20px;
    }

    .solution-cards {
        padding: 0 5px;
    }

    .solution-card {
        margin-bottom: 15px;
    }

    .card-content {
        padding: 20px 15px;
    }

    .card-img {
        height: 120px;
        object-fit: cover;
    }

    .card-overlay {
        padding: 15px 10px;
    }

    .card-title {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .btn-solution {
        padding: 6px 20px;
        font-size: 12px;
    }

    .card-desc {
        font-size: 12px;
        line-height: 1.6;
        margin-top: 10px;
    }

    /* 分页器样式优化 */
    .swiper-pagination {
        position: relative;
        margin-top: 20px;
        bottom: auto;
    }

    .swiper-pagination-bullet {
        width: 8px;
        height: 8px;
        margin: 0 4px;
    }

    /* 多智能体平台 XAI - 改为单列 */
    .ld-xai-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .ld-xai-item {
        padding: 30px 20px;
    }

    .ld-xai-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 20px;
    }

    .ld-xai-icon img {
        width: 60px;
        height: 60px;
    }

    .ld-xai-item h5 {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .ld-xai-item p {
        font-size: 13px;
        line-height: 1.7;
    }

    /* 深度数据集成 - 改为单列 */
    .ld-integration-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .ld-integration-item {
        padding: 30px 25px;
    }

    .ld-integration-icon {

        margin-bottom: 30px;
    }

    .ld-integration-icon img {
        width: 30%;
        height: 30%;
    }

    .ld-integration-item h5 {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .ld-integration-item p {
        font-size: 13px;
        line-height: 1.7;
    }

    /* 底部三栏文字 */
    .ld-bottom-grid {
        gap: 30px;
        padding: 20px;
    }

    .ld-bottom-item h4 {
        font-size: 18px;
        margin-bottom: 15px;
        padding-bottom: 12px;
    }

    .ld-bottom-item h4::after {
        width: 120px;
        height: 1px;
    }

    .ld-bottom-item p {
        font-size: 13px;
        line-height: 1.8;
    }
}

/* ========== 小屏手机优化 (480px以下) ========== */
@media screen and (max-width: 480px) {

    /* 进一步缩小间距 */
    .ld-section {
        padding: 25px 15px;
    }

    .ld-platforms,
    .ld-ai-section,
    .ld-xai-section,
    .ld-integration-section {
        padding: 25px 15px;
    }

    .ld-bottom-section {
        padding: 25px 15px 25px 15px;
    }

    /* 标题进一步优化 */
    .ld-section-title {
        font-size: 30px;
        margin-bottom: 15px;
        letter-spacing: 1.5px;
    }

    .ld-subtitle {
        font-size: 20px;
        margin-bottom: 12px;
        letter-spacing: 1px;
    }

    .ld-section-subtitle,
    .ld-ai-desc {
        font-size: 14px;
        padding: 0 5px;
    }

    .ld-desc {
        font-size: 13px;
        padding: 0 5px;
    }

    /* Banner优化 */
    .ld-banner-video {
        width: 80%;
        max-width: 300px;
    }

    .ld-banner-bg img {
        /*height: 180px;*/
    }

    /* 平台卡片 - 小屏优化 */
    .ld-platforms {
        padding: 25px 10px;
    }

    .ld-platform-cards {
        gap: 20px;
    }

    .ld-card-img-wrapper {
        height: 350px;
    }

    .ld-card-overlay {
        padding: 15px 8px;
    }

    .ld-card-overlay h4 {
        font-size: 20px;
        /*margin-bottom: 6px;*/
        line-height: 0.8;
    }

    .ld-card-overlay p {
        font-size: 14px;
        margin-bottom: 6px;
    }

    .ld-btn {
        /*padding: 4px 15px;*/
        /*font-size: 9px;*/
    }

    .ld-card-hover-text p {
        font-size: 14px;
        margin-bottom: 6px;
    }

    .ld-card-hover-text {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        transform: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        display: block !important;
        padding: 0 !important;
        width: 100% !important;
        margin-top: 5px;
    }

    /* 行业解决方案轮播 */
    .industry-swiper-container {
        padding: 0 15px;
        margin: 0 -15px;
    }

    .card-content {
        padding: 15px 12px;
    }

    .card-img {
        height: 100px;
    }

    .card-title {
        font-size: 14px;
    }

    .btn-solution {
        padding: 5px 18px;
        font-size: 11px;
    }

    .card-desc {
        font-size: 11px;
    }

    /* XAI平台 */
    .ld-xai-item {
        padding: 25px 15px;
    }

    .ld-xai-icon {
        width: 70px;
        height: 70px;
        margin-bottom: 15px;
    }

    .ld-xai-icon img {
        width: 50px;
        height: 50px;
    }

    .ld-xai-item h5 {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .ld-xai-item p {
        font-size: 13px;
    }

    /* 深度数据集成 */
    .ld-integration-item {
        padding: 25px 20px;
    }

    .ld-integration-icon {

        margin-bottom: 25px;
    }

    .ld-integration-icon img {
        width: 30%;
        height: 30%;
    }

    .ld-integration-item h5 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .ld-integration-item p {
        font-size: 13px;
    }

    /* 底部三栏 */
    .ld-bottom-grid {
        gap: 25px;
        padding: 15px;
    }

    .ld-bottom-item h4 {
        font-size: 16px;
        margin-bottom: 12px;
        padding-bottom: 10px;
    }

    .ld-bottom-item h4::after {
        width: 100px;
    }

    .ld-bottom-item p {
        font-size: 13px;
        line-height: 1.7;
    }
}

/* ========== 超小屏手机优化 (360px以下) ========== */
@media screen and (max-width: 360px) {
    .ld-section-title {
        font-size: 22px;
    }

    .ld-subtitle {
        font-size: 18px;
    }

    .ld-banner-bg img {
        height: 150px;
    }

    .ld-banner-video {
        width: 85%;
    }

    .card-img {
        height: 90px;
    }

    .ld-xai-icon,
    .ld-integration-icon {
        width: 60px;
        height: 60px;
    }

    .ld-xai-icon img {
        width: 40px;
        height: 40px;
    }

    .ld-integration-icon img {
        width: 60px;
        height: 60px;
    }
}

/* ========== 移动端触摸优化 ========== */
@media (hover: none) and (pointer: coarse) {

    /* 增加可点击区域 */
    .ld-btn,
    .ld-method-btn {
        /*min-height: 44px;*/
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-top: 20px;
        font-size: 10px;
    }

    .btn-solution {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-top: 0px;
        font-size: 10px;
    }

    .card-title {
        font-size: 18px;
        color: #fcfcfc;
        margin-bottom: 14px;
        letter-spacing: 4px;
    }

    /* 移除hover效果，改为active效果 */
    .ld-platform-card:active {
        transform: scale(0.98);
    }

    .ld-xai-item:active,
    .ld-integration-item:active {
        transform: scale(0.98);
    }

    .ld-btn:active,
    .btn-solution:active {
        transform: scale(0.95);
    }
}

/* ========== 横屏模式优化 ========== */
@media screen and (max-width: 768px) and (orientation: landscape) {
    .ld-banner-bg img {
        height: 300px;
    }

    .ld-banner-video {
        width: 50%;
        max-width: 500px;
    }

    .ld-section {
        padding: 30px 40px;
    }

    .ld-platforms,
    .ld-xai-section,
    .ld-integration-section {
        padding: 30px 40px;
    }

    /* 横屏时部分内容可以使用2列 */
    .ld-xai-grid,
    .ld-integration-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* ===================================
   PC端 科技感增强交互特效 (min-width: 1025px)
   =================================== */
@media screen and (min-width: 1025px) {

    /* --- 0. 全局标题故障风特效 (Cyberpunk Glitch) --- */
    .ld-section-title,
    .ld-subtitle {
        transition: text-shadow 0.2s ease;
        position: relative;
    }


    /* --- 1. 三大EDA平台 - ”整体发光“ (Simple Glow) --- */
    .ld-platform-card {
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border: 1px solid rgba(255, 255, 255, 0.05);
        position: relative;
        border-radius: 12px;
    }

    .ld-platform-card:hover {
        transform: translateY(-10px) scale(1.02);
        /* 统一使用蓝色发光晕，与下方行业解决方案保持一致 */
        box-shadow: 0 0 30px rgba(0, 174, 255, 0.4);
        border-color: #00aeff;
        z-index: 10;
    }

    /* 移除之前的光波扫描(after)和四角锁定(before)效果，保持简洁 */
    .ld-platform-card::after,
    .ld-platform-card::before {
        display: none;
    }


    /* --- 2. 行业解决方案 - ) --- */
    .solution-card {
        transition: all 0.4s ease;
        border-radius: 8px;
        border: 1px solid transparent;
        overflow: hidden;
        /* 必须防止伪元素溢出 */
    }

    .solution-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 0 30px rgba(0, 174, 255, 0.4);
        border-color: #00aeff;
        z-index: 10;
        /* 背景色略微变深，突出亮光 */
        background-color: #f8fbff;
    }

    /* 模拟电路流光背景 */
    .solution-card::after {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: repeating-linear-gradient(45deg,
                transparent,
                transparent 10px,
                rgba(0, 174, 255, 0.03) 10px,
                rgba(0, 174, 255, 0.03) 20px);
        transform: rotate(0deg);
        transition: transform 10s linear;
        pointer-events: none;
        opacity: 0;
        z-index: 0;
    }




    /* --- 3. 深度数据集成 - ”能量脉冲“ (Energy Pulse) --- */
    /* 已取消卡片整体效果，仅保留Icon高亮 */
    .ld-integration-item {
        border: 1px solid transparent;
        transition: all 0.4s ease;
        position: relative;
    }

    /* 移除之前的 .ld-integration-item:hover 及其 卡片脉冲动画 */



    .ld-integration-item:hover .ld-integration-icon img {
        transform: scale(1.1) translateY(-5px);
        filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.6));
        /* 图标发光 */
        transition: all 0.4s ease;
    }


    /* --- 4. 按钮 - ”信号传输“ (Signal Transmission) --- */
    .ld-btn {
        position: relative;
        overflow: hidden;
        z-index: 1;
        transition: all 0.3s ease;
    }

    .ld-btn:hover {
        background: #00aeff;
        color: #fff;
        box-shadow: 0 0 20px rgba(0, 174, 255, 0.6);
        letter-spacing: 2px;
        /* 字母间距拉开，模拟展开 */
    }

    .ld-btn::after {
        content: '';
        position: absolute;
        top: 0;
        left: -120%;
        width: 100%;
        height: 100%;
        /* 更强烈的流光 */
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
        transform: skewX(-20deg);
        transition: none;
    }

    .ld-btn:hover::after {
        left: 120%;
        transition: left 0.5s ease;
    }


    /* --- 5. Banner视频 - ”全息投影“ (Holographic Glow) --- */
    .ld-video-player {
        transition: all 0.5s ease;
    }

}