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

body {
    font-family: 'Segoe UI', sans-serif;
    overflow-x: hidden;
    background-color: #000;
    color: #ffffff;
}

#citySel {
    background-color: rgba(211, 211, 211, 0.2);
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
}

.tekup-footer-bottom {
    padding: 20px 0;
    border-top: 1px solid white;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

:root {
    --primary: #0F1A2F;
    --accent: #00F3FF;
    --highlight: #FF6B35;
    --neon: #7DF9FF;
}

/* 粒子背景 */
#particles {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none
}

/* 主要内容区域 */
.main-container {
    margin-bottom: 20px;
}

/* 修改左侧导航样式 - 按照iframe.html样式 */
.side-navigation {
    width: 60px;
    position: fixed;
    left: 8%;
    top: 50%;
    transform: translateY(-50%);
    height: auto;
    background: transparent;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    justify-content: center;
    z-index: 900;
}

.nav-btn {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn.active {
    background: #4fc3f7;
    transform: scale(1.2);
}

.nav-btn:hover {
    background: white;
    transform: scale(1.3);
}

.nav-btn:hover::before {
    content: attr(data-title);
    position: absolute;
    left: 25px;
    white-space: nowrap;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 8;
}

.nav-btn.active:hover {
    background: #4fc3f7;
    color: white;
}

.nav-btn.active:hover::before {
    background: #022b52;
    color: white;
}

/* 幻灯片内容区域 */
.slides-content {
    /*padding: 0;*/
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.slide-section {
    width: 100%;
    height: calc(100vh - 150px); /* 修改为100vh确保每页高度为视口高度 */
    position: relative;
    background: linear-gradient(135deg, rgba(0, 32, 96, 0.95), rgba(0, 64, 64, 0.95));
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
    overflow: hidden; /* 防止内容溢出 */
    scroll-margin-top: 120px; /* 根据header高度调整这个值 */
}

.slide-background {
    position: absolute;
    top: 150px;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
}

.slide-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #E1F5FE;
    position: relative;
    display: inline-block;
}

.slide-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #4FC3F7, #81C784);
    border-radius: 2px;
}

.slide-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    justify-content: center; /* 确保内容垂直居中 */
}

.tech-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: -1;
}

.tech-circle {
    position: absolute;
    border: 1px solid rgba(79, 195, 247, 0.2);
    border-radius: 50%;
}

.tech-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, rgba(79, 195, 247, 0.3), transparent);
    height: 1px;
}

/* 幻灯片css ---- start */
.slide-1 {
    width: 100%;
    height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        height: 720px;
        position: relative;
        overflow: hidden;
    }
    .background-image {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.25;
        z-index: -1;
    }
    .content {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        height: 100%;
        padding: 0 70px;
        text-align: center;
    }
    .main-title {
        font-size: 64px;
        font-weight: 700;
        margin-bottom: 24px;
        color: #ffffff;
        letter-spacing: 2px;
    }
    .subtitle {
        font-size: 28px;
        font-weight: 500;
        margin-bottom: 40px;
        color: #e0f2ff;
        max-width: 80%;
        line-height: 1.4;
    }
    .slogan {
        font-size: 20px;
        font-weight: 400;
        margin-bottom: 60px;
        color: #a9d6ff;
        max-width: 70%;
        line-height: 1.6;
    }
    .support-info {
        font-size: 18px;
        color: #c0e0ff;
        padding: 12px 24px;
        background-color: rgba(0, 87, 184, 0.4);
        border-radius: 30px;
        margin-top: 20px;
    }
    .decoration {
        position: absolute;
        bottom: 40px;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    .decoration-line {
        width: 200px;
        height: 4px;
        background: linear-gradient(90deg, transparent, #4dabf7, transparent);
    }
    .tech-icon {
        position: absolute;
        opacity: 0.1;
    }
    .tech-icon-1 {
        top: 80px;
        left: 80px;
        font-size: 60px;
    }
    .tech-icon-2 {
        bottom: 100px;
        right: 100px;
        font-size: 70px;
    }
    .tech-icon-3 {
        top: 120px;
        right: 150px;
        font-size: 50px;
    }
}

.slide-2 {
    width: 100%;
    height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-wrap: wrap;
        padding: 30px 50px 40px;
        gap: 30px;
    }
    .challenge-card {
        flex: 1 1 calc(50% - 15px);
        min-width: calc(50% - 15px);
        background: white;
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0, 87, 184, 0.1);
        padding: 24px;
        display: flex;
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
        overflow: hidden;
        align-items: center;
    }
    .challenge-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.15);
    }
    .challenge-icon {
        width: 60px;
        height: 60px;
        background: rgba(0, 87, 184, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 20px;
        flex-shrink: 0;
    }
    .challenge-icon i {
        font-size: 32px;
        color: #0057b8;
    }
    .challenge-content {
        flex-grow: 1;
    }
    .challenge-title {
        font-size: 22px;
        font-weight: 600;
        color: #0057b8;
        margin-bottom: 12px;
    }
    .challenge-desc {
        text-align: left;
        font-size: 16px;
        line-height: 1.5;
        color: #555;
    }
    .highlight {
        color: #e63946;
        font-weight: 500;
    }
    .decoration {
        position: absolute;
        bottom: -20px;
        right: -20px;
        width: 100px;
        height: 100px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}

.slide-3 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .model-container {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        margin-top: 20px;
    }
    .layer {
        padding: 20px;
        border-radius: 12px;
        margin-bottom: 20px;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .layer:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.15);
    }
    .layer-header {
        display: flex;
        align-items: center;
        margin-bottom: 15px;
    }
    .layer-icon {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 15px;
        flex-shrink: 0;
    }
    .layer-icon i {
        font-size: 28px;
        color: white;
    }
    .layer-title {
        font-size: 24px;
        font-weight: 600;
        color: white;
    }
    .layer-desc {
        font-size: 18px;
        color: white;
        margin-bottom: 15px;
        opacity: 0.9;
    }
    .systems {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: center;
    }
    .system {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 8px;
        padding: 8px 16px;
        font-size: 16px;
        color: white;
        display: flex;
        align-items: center;
    }
    .system i {
        font-size: 18px;
        margin-right: 6px;
    }
    .base-layer {
        background: linear-gradient(90deg, #0057b8, #004090);
    }
    .base-layer .layer-icon {
        background: rgba(255, 255, 255, 0.2);
    }
    .core-layer {
        background: linear-gradient(90deg, #0077cc, #0057b8);
    }
    .core-layer .layer-icon {
        background: rgba(255, 255, 255, 0.2);
    }
    .smart-layer {
        background: linear-gradient(90deg, #0099ff, #0077cc);
    }
    .smart-layer .layer-icon {
        background: rgba(255, 255, 255, 0.2);
    }
    .decoration {
        position: absolute;
        bottom: -20px;
        right: -20px;
        width: 100px;
        height: 100px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        z-index: 0;
    }
    .model-intro {
        text-align: center;
        margin-bottom: 20px;
    }
    .model-intro p {
        font-size: 20px;
        color: #0057b8;
        font-weight: 500;
    }

}

.slide-4 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 40px 70px;
    }
    .value-cards {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .value-card {
        flex: 1;
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 30px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .value-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.2);
    }
    .value-item {
        display: flex;
        align-items: center; /* 让图标和文字在垂直方向上居中对齐 */
        gap: 12px; /* 在图标和文字之间加一点间距，看起来更舒服 */
    }
    .value-icon {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50% !important; /* 强制圆形 */
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 24px;
        /* 添加以下属性确保圆形不变形 */
        flex-shrink: 0;
        aspect-ratio: 1 / 1; /* 确保宽高比1:1 */
    }
    .value-icon i {
        font-size: 24px;
        color: white;
    }
    .value-title {
        font-size: 24px;
        font-weight: 600;
        color: #0057b8;
        margin-bottom: 24px;
    }
    .value-desc {
        font-size: 18px;
        line-height: 1.6;
        color: #555;
        flex-grow: 1;
    }
    .highlight {
        color: #e63946;
        font-weight: 500;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
    .intro-text {
        text-align: center;
        margin-bottom: 40px;
    }
    .intro-text p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
    }
    .feature-list {
        margin-top: 20px;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 12px;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 10px;
        font-size: 20px;
        flex-shrink: 0;
    }
    .feature-text {
        text-align: left;
        font-size: 16px;
        line-height: 1.5;
    }
}

.slide-5 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .value-statement {
        background: rgba(0, 87, 184, 0.08);
        border-left: 4px solid #0057b8;
        padding: 16px 24px;
        border-radius: 8px;
        margin-bottom: 30px;
    }
    .value-statement p {
        font-size: 20px;
        color: #0057b8;
        font-weight: 500;
        line-height: 1.5;
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .systems-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .systems-column {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .system-card {
        background: white;
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0, 87, 184, 0.1);
        padding: 24px;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
        overflow: hidden;
    }
    .system-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.15);
    }
    .system-header {
        display: flex;
        align-items: center;
        margin-bottom: 16px;
    }
    .system-icon {
        width: 50px;
        height: 50px;
        background: rgba(0, 87, 184, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .system-icon i {
        font-size: 28px;
        color: #0057b8;
    }
    .system-title {
        font-size: 22px;
        font-weight: 600;
        color: #0057b8;
    }
    .system-desc {
        font-size: 18px;
        line-height: 1.5;
        color: #555;
        flex-grow: 1;
    }
    .feature-list {
        margin-top: 16px;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 10px;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 10px;
        font-size: 20px;
        flex-shrink: 0;
    }
    .feature-text {
        text-align: left;
        font-size: 16px;
        line-height: 1.5;
    }
    .core-systems {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 16px;
        margin-bottom: 30px;
    }
    .core-system {
        background: white;
        border-radius: 8px;
        padding: 12px 20px;
        font-size: 18px;
        color: #0057b8;
        font-weight: 500;
        display: flex;
        align-items: center;
        box-shadow: 0 2px 8px rgba(0, 87, 184, 0.1);
    }
    .core-system i {
        font-size: 22px;
        margin-right: 8px;
        color: #0057b8;
    }
    .decoration {
        position: absolute;
        bottom: -20px;
        right: -20px;
        width: 100px;
        height: 100px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}

.slide-6 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .intro-text {
        text-align: center;
        margin-bottom: 30px;
    }
    .intro-text p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
    }
    .systems-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .system-group {
        flex: 1;
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 30px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .system-group:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.15);
    }
    .group-header {
        display: flex;
        align-items: center;
        margin-bottom: 24px;
        padding-bottom: 16px;
        border-bottom: 2px solid rgba(0, 87, 184, 0.1);
    }
    .group-icon {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .group-icon i {
        font-size: 32px;
        color: white;
    }
    .group-title {
        font-size: 24px;
        font-weight: 600;
        color: #0057b8;
    }
    .systems-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
        flex-grow: 1;
    }
    .system-item {
        display: flex;
        align-items: flex-start;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 12px;
        padding: 16px;
        transition: background 0.3s;
    }
    .system-item:hover {
        background: rgba(0, 87, 184, 0.1);
    }
    .system-icon {
        width: 44px;
        height: 44px;
        background: rgba(0, 87, 184, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .system-icon i {
        font-size: 24px;
        color: #0057b8;
    }
    .system-content {
        flex-grow: 1;
    }
    .system-name {
        font-size: 20px;
        font-weight: 500;
        color: #0057b8;
        margin-bottom: 6px;
    }
    .system-desc {
        text-align: left;
        font-size: 16px;
        color: #555;
        line-height: 1.4;
    }
    .highlight {
        color: #e63946;
        font-weight: 500;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}

.slide-7 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .value-statement {
        background: rgba(0, 87, 184, 0.08);
        border-left: 4px solid #0057b8;
        padding: 16px 24px;
        border-radius: 8px;
        margin-bottom: 30px;
    }
    .value-statement p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
        line-height: 1.5;
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .features-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .feature-card {
        flex: 1;
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 30px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.15);
    }
    .feature-header {
        display: flex;
        align-items: center;
        margin-bottom: 20px;
    }
    .feature-icon {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .feature-icon i {
        font-size: 32px;
        color: white;
    }
    .feature-title {
        font-size: 24px;
        font-weight: 600;
        color: #0057b8;
    }
    .feature-desc {
        font-size: 16px;
        line-height: 1.5;
        color: #555;
        margin-bottom: 20px;
        text-align: left;
    }
    .feature-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
        flex-grow: 1;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 12px;
        font-size: 22px;
        flex-shrink: 0;
    }
    .feature-text {
        text-align: left;
        font-size: 18px;
        line-height: 1.5;
        color: black;
    }
    .feature-image {
        margin-top: 20px;
        width: 100%;
        height: 180px;
        border-radius: 8px;
        overflow: hidden;
        background: rgba(0, 87, 184, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .feature-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}


.slide-8 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .value-statement {
        background: rgba(0, 87, 184, 0.08);
        border-left: 4px solid #0057b8;
        padding: 16px 24px;
        border-radius: 8px;
        margin-bottom: 30px;
    }
    .value-statement p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
        line-height: 1.5;
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .systems-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .systems-column {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .system-card {
        background: white;
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0, 87, 184, 0.1);
        padding: 24px;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
        overflow: hidden;
    }
    .system-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.15);
    }
    .system-header {
        display: flex;
        align-items: center;
        margin-bottom: 16px;
    }
    .system-icon {
        width: 50px;
        height: 50px;
        background: rgba(0, 87, 184, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .system-icon i {
        font-size: 28px;
        color: #0057b8;
    }
    .system-title {
        font-size: 22px;
        font-weight: 600;
        color: #0057b8;
    }
    .system-desc {
        font-size: 18px;
        line-height: 1.5;
        color: #555;
        flex-grow: 1;
    }
    .feature-list {
        margin-top: 16px;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 10px;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 10px;
        font-size: 20px;
        flex-shrink: 0;
    }
    .feature-text {
        text-align: left;
        font-size: 15px;
        line-height: 1.5;
    }
    .core-systems {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        margin-bottom: 30px;
    }
    .core-system {
        background: white;
        border-radius: 8px;
        padding: 12px 20px;
        font-size: 18px;
        color: #0057b8;
        font-weight: 500;
        display: flex;
        align-items: center;
        box-shadow: 0 2px 8px rgba(0, 87, 184, 0.1);
    }
    .core-system i {
        font-size: 22px;
        margin-right: 8px;
        color: #0057b8;
    }
    .decoration {
        position: absolute;
        bottom: -20px;
        right: -20px;
        width: 100px;
        height: 100px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
    .system-image {
        margin-top: 16px;
        width: 100%;
        height: 140px;
        border-radius: 8px;
        overflow: hidden;
        background: rgba(0, 87, 184, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .system-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }


}


.slide-9 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .intro-text {
        text-align: center;
        margin-bottom: 30px;
    }
    .intro-text p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
    }
    .scenes-container {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(2, 1fr);
        gap: 30px;
        flex-grow: 1;
    }
    .scene-card {
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 24px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .scene-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.15);
    }
    .scene-header {
        display: flex;
        align-items: center;
        margin-bottom: 16px;
    }
    .scene-icon {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .scene-icon i {
        font-size: 28px;
        color: white;
    }
    .scene-title {
        font-size: 22px;
        font-weight: 600;
        color: #0057b8;
    }
    .scene-desc {
        font-size: 18px;
        line-height: 1.5;
        color: #555;
        margin-bottom: 16px;
        flex-grow: 1;
    }
    .scene-image {
        width: 100%;
        height: 140px;
        border-radius: 8px;
        overflow: hidden;
        background: rgba(0, 87, 184, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .scene-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .feature-list {
        margin-top: 10px;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 8px;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 8px;
        font-size: 18px;
        flex-shrink: 0;
    }
    .feature-text {
        font-size: 16px;
        line-height: 1.4;
    }
    .decoration {
        position: absolute;
        bottom: -20px;
        right: -20px;
        width: 100px;
        height: 100px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}


.slide-10 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .intro-text {
        text-align: center;
        margin-bottom: 30px;
    }
    .intro-text p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
    }
    .advantages-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .advantage-card {
        flex: 1;
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 30px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .advantage-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.2);
    }
    .advantage-item {
        display: flex;
        align-items: center; /* 让图标和文字在垂直方向上居中对齐 */
        gap: 12px; /* 在图标和文字之间加一点间距，看起来更舒服 */
    }
    .advantage-icon {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 24px;
    }
    .advantage-icon i {
        font-size: 20px;
        color: white;
    }
    .advantage-title {
        font-size: 24px;
        font-weight: 600;
        color: #0057b8;
        margin-bottom: 24px;
    }
    .advantage-desc {
        font-size: 18px;
        line-height: 1.6;
        color: #555;
        flex-grow: 1;
    }
    .highlight {
        color: #e63946;
        font-weight: 500;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
    .feature-list {
        margin-top: 20px;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 12px;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 10px;
        font-size: 20px;
        flex-shrink: 0;
    }
    .feature-text {
        text-align: left;
        font-size: 16px;
        line-height: 1.5;
    }
    .source-code-badge {
        display: inline-block;
        background: rgba(0, 87, 184, 0.1);
        color: #0057b8;
        font-weight: 600;
        padding: 6px 12px;
        border-radius: 20px;
        margin-top: 34px;
        font-size: 16px;
    }
    .systems-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 12px;
    }
    .system-item {
        background: rgba(0, 87, 184, 0.05);
        border-radius: 6px;
        padding: 6px 12px;
        font-size: 14px;
        color: #0057b8;
        display: flex;
        align-items: center;
    }
    .system-item i {
        font-size: 16px;
        margin-right: 6px;
    }
}


.slide-11 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .intro-text {
        text-align: center;
        margin-bottom: 30px;
    }
    .intro-text p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
    }
    .paths-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .path-card {
        flex: 1;
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 30px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
        /* 确保卡片本身是flex容器 */
        min-height: 600px; /* 给卡片一个最小高度 */
    }
    .path-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.2);
    }
    .path-header {
        display: flex;
        align-items: center;
        margin-bottom: 20px;
    }
    .path-number {
        width: 60px;
        height: 60px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
        font-size: 28px;
        font-weight: 700;
        color: white;
    }
    .path-title {
        font-size: 24px;
        font-weight: 600;
        color: #0057b8;
    }
    .path-subtitle {
        font-size: 18px;
        color: #555;
        margin-top: 4px;
    }
    .path-desc {
        text-align: left;
        font-size: 18px;
        line-height: 1.5;
        color: #555;
        margin-bottom: 20px;
        flex-grow: 1;
        margin-top: auto; /* 这个设置是正确的 */
        display: flex;
        align-items: flex-end; /* 新增：确保内容底部对齐 */
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .systems-list {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 16px;
    }
    .system-item {
        background: rgba(0, 87, 184, 0.08);
        border-radius: 8px;
        padding: 10px 16px;
        font-size: 16px;
        color: #0057b8;
        font-weight: 500;
        display: flex;
        align-items: center;
    }
    .system-item i {
        font-size: 20px;
        margin-right: 8px;
        color: #0057b8;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
    .path-focus {
        background: rgba(0, 87, 184, 0.05);
        border-left: 4px solid #0057b8;
        padding: 12px 16px;
        border-radius: 8px;
        margin-top: 16px;
    }
    .path-focus p {
        font-size: 18px;
        color: #0057b8;
        font-weight: 500;
    }
    .path-card.path-1 {
        border-top: 4px solid #0057b8;
    }
    .path-card.path-2 {
        border-top: 4px solid #0077cc;
    }
    .path-card.path-3 {
        border-top: 4px solid #0099ff;
    }
}


.slide-12 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .sections-container {
        display: flex;
        gap: 40px;
        flex-grow: 1;
    }
    .section {
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .section-header {
        display: flex;
        align-items: center;
        margin-bottom: 24px;
    }
    .section-icon {
        width: 60px;
        height: 60px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0;
    }
    .section-icon i {
        font-size: 32px;
        color: white;
    }
    .section-title {
        font-size: 28px;
        font-weight: 600;
        color: #0057b8;
    }
    .card-container {
        display: flex;
        flex-direction: column;
        gap: 20px;
        flex-grow: 1;
    }
    .card {
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 24px;
        display: flex;
        align-items: flex-start;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.15);
    }
    .card-icon {
        width: 50px;
        height: 50px;
        background: rgba(0, 87, 184, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 20px;
        flex-shrink: 0;
    }
    .card-icon i {
        font-size: 28px;
        color: #0057b8;
    }
    .card-content {
        flex-grow: 1;
    }
    .card-title {
        font-size: 22px;
        font-weight: 600;
        color: #0057b8;
        margin-bottom: 12px;
    }
    .card-desc {
        text-align: left;
        font-size: 18px;
        line-height: 1.5;
        color: #555;
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .recommended-badge {
        position: absolute;
        top: 0;
        right: 0;
        background: #e63946;
        color: white;
        font-size: 14px;
        font-weight: 600;
        padding: 6px 12px;
        border-radius: 0 16px 0 16px;
    }
    .action-card {
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 24px;
        display: flex;
        align-items: center;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
        margin-bottom: 20px;
    }
    .action-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.15);
    }
    .action-icon {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 20px;
        flex-shrink: 0;
    }
    .action-icon i {
        font-size: 32px;
        color: white;
    }
    .action-content {
        flex-grow: 1;
    }
    .action-title {
        font-size: 22px;
        font-weight: 600;
        color: #0057b8;
        margin-bottom: 8px;
    }
    .action-desc {
        text-align: left;
        font-size: 18px;
        line-height: 1.5;
        color: #555;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}


.slide-13 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .background-image {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.25;
        z-index: -1;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 0 70px;
        text-align: center;
    }
    .slogan {
        font-size: 48px;
        font-weight: 700;
        margin-bottom: 60px;
        color: #ffffff;
        letter-spacing: 2px;
    }
    .contact-container {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-top: 40px;
    }
    .contact-title {
        font-size: 24px;
        font-weight: 500;
        margin-bottom: 30px;
        color: #a9d6ff;
    }
    .contact-items {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 40px;
        max-width: 800px;
    }
    .contact-item {
        display: flex;
        align-items: center;
        font-size: 20px;
        color: #e0f2ff;
    }
    .contact-item i {
        font-size: 24px;
        margin-right: 12px;
        color: #4dabf7;
    }
    .decoration {
        position: absolute;
        bottom: 40px;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    .decoration-line {
        width: 200px;
        height: 4px;
        background: linear-gradient(90deg, transparent, #4dabf7, transparent);
    }
    .tech-icon {
        position: absolute;
        opacity: 0.1;
    }
    .tech-icon-1 {
        top: 80px;
        left: 80px;
        font-size: 60px;
    }
    .tech-icon-2 {
        bottom: 100px;
        right: 100px;
        font-size: 70px;
    }
    .tech-icon-3 {
        top: 120px;
        right: 150px;
        font-size: 50px;
    }
    .company-logo {
        margin-bottom: 40px;
        font-size: 28px;
        font-weight: 700;
        color: #4dabf7;
        letter-spacing: 1px;
    }
}


.slide-14 {
    width: 100%;
    height: auto;
    min-height: 100vh;
    position: relative;

    .slide {
        width: 100%;
        max-width: 1280px;
        min-height: 720px;
        height: auto;
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .header {
        padding: 40px 70px 20px;
        background: linear-gradient(90deg, #0057b8, #004090);
        color: white;
    }
    .title {
        font-size: 40px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .subtitle {
        font-size: 20px;
        font-weight: 400;
        opacity: 0.9;
    }
    .content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        padding: 30px 0px 40px;
    }
    .intro-text {
        text-align: center;
        margin-bottom: 30px;
    }
    .intro-text p {
        font-size: 22px;
        color: #0057b8;
        font-weight: 500;
    }
    .systems-container {
        display: flex;
        gap: 30px;
        flex-grow: 1;
    }
    .system-card {
        flex: 1;
        background: white;
        border-radius: 16px;
        box-shadow: 0 8px 24px rgba(0, 87, 184, 0.1);
        padding: 30px;
        display: flex;
        flex-direction: column;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }
    .system-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 30px rgba(0, 87, 184, 0.2);
    }
    .system-header {
        display: flex;
        align-items: center; /* 垂直居中 */
        margin-bottom: 20px;
        min-height: 60px; /* 设置最小高度确保一致性 */
    }

    .system-icon {
        width: 50px; /* 统一宽度 */
        height: 50px; /* 统一高度 */
        background: linear-gradient(135deg, #0057b8, #0077cc);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 16px;
        flex-shrink: 0; /* 防止图标被压缩 */
    }

    .system-icon i {
        font-size: 24px; /* 统一图标大小 */
        color: white;
    }

    .system-title {
        font-size: 24px;
        font-weight: 600;
        color: #0057b8;
        /* 确保标题文本垂直居中 */
        display: flex;
        align-items: center;
        min-height: 50px; /* 与图标高度一致 */
    }
    .system-desc {
        font-size: 18px;
        line-height: 1.5;
        color: #555;
        margin-bottom: 20px;
        flex-grow: 1;
    }
    .highlight {
        color: #e63946;
        font-weight: 600;
    }
    .feature-list {
        margin-top: 16px;
    }
    .feature-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 12px;
    }
    .feature-item i {
        color: #0057b8;
        margin-right: 10px;
        font-size: 20px;
        flex-shrink: 0;
    }
    .feature-text {
        text-align: left;
        font-size: 16px;
        line-height: 1.5;
    }
    .system-image {
        margin-top: 20px;
        width: 100%;
        height: 160px;
        border-radius: 8px;
        overflow: hidden;
        background: rgba(0, 87, 184, 0.05);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .system-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .decoration {
        position: absolute;
        bottom: -30px;
        right: -30px;
        width: 150px;
        height: 150px;
        background: rgba(0, 87, 184, 0.05);
        border-radius: 50%;
        z-index: 0;
    }
}

/* 幻灯片css ---- end */

/* 响应式调整 */
@media (max-width: 1024px) {
    .side-navigation {
        width: 50px;
        left: 3%;
    }

    .slides-content {
        margin-left: 80px;
        width: calc(100% - 80px);
    }

    .tekup-footer-section {
        margin-left: 80px;
        width: calc(100% - 80px);
    }

    .slide-section {
        padding: 40px 40px;
    }

    .challenge-card {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .side-navigation {
        display: none;
    }

    .slides-content {
        margin-left: 0;
        width: 100%;
    }

    .tekup-footer-section {
        margin-left: 0;
        width: 100%;
    }

    .slide-section {
        padding: 40px 20px;
        height: auto; /* 移动端恢复自动高度 */
        min-height: calc(100% - 80px); /* 确保最小高度为视口高度 */
    }

    .value-container {
        flex-direction: column;
    }

    .system-container {
        justify-content: center;
    }

    .slide-1 .slide-title {
        font-size: 36px;
    }

    .slide-1 .subtitle {
        font-size: 18px;
    }

    .slide-1 .slogan {
        font-size: 20px;
    }
}


/* ==================== 移动端响应式适配 ==================== */

/* 平板设备 (768px - 1024px) */
@media (max-width: 1024px) {
    .side-navigation {
        width: 50px;
        left: 3%;
    }

    .nav-btn {
        width: 14px;
        height: 14px;
    }

    .slide-section {
        padding: 30px 40px;
        height: auto;
        min-height: 100vh;
    }

    /* 通用幻灯片样式调整 */
    .slide-1 .main-title,
    .slide-2 .title,
    .slide-3 .title,
    .slide-4 .title,
    .slide-5 .title,
    .slide-6 .title,
    .slide-7 .title,
    .slide-8 .title,
    .slide-9 .title,
    .slide-10 .title,
    .slide-11 .title,
    .slide-12 .title,
    .slide-13 .title,
    .slide-14 .title {
        font-size: 32px;
    }

    .slide-1 .subtitle,
    .slide-2 .subtitle,
    .slide-3 .subtitle,
    .slide-4 .subtitle,
    .slide-5 .subtitle,
    .slide-6 .subtitle,
    .slide-7 .subtitle,
    .slide-8 .subtitle,
    .slide-9 .subtitle,
    .slide-10 .subtitle,
    .slide-11 .subtitle,
    .slide-12 .subtitle,
    .slide-13 .subtitle,
    .slide-14 .subtitle {
        font-size: 18px;
    }

    /* 卡片布局调整为单列 */
    .slide-2 .content,
    .slide-4 .value-cards,
    .slide-5 .systems-container,
    .slide-6 .systems-container,
    .slide-7 .features-container,
    .slide-8 .systems-container,
    .slide-9 .scenes-container,
    .slide-10 .advantages-container,
    .slide-11 .paths-container,
    .slide-12 .sections-container,
    .slide-14 .systems-container {
        flex-direction: column;
        gap: 20px;
    }

    .slide-2 .challenge-card,
    .slide-4 .value-card,
    .slide-5 .systems-column,
    .slide-6 .system-group,
    .slide-7 .feature-card,
    .slide-8 .systems-column,
    .slide-9 .scene-card,
    .slide-10 .advantage-card,
    .slide-11 .path-card,
    .slide-12 .section,
    .slide-14 .system-card {
        flex: 1 1 100%;
        min-width: 100%;
    }

    /* 网格布局调整 */
    .slide-9 .scenes-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    /* 内边距调整 */
    .slide-1 .content,
    .slide-2 .header,
    .slide-3 .header,
    .slide-4 .header,
    .slide-5 .header,
    .slide-6 .header,
    .slide-7 .header,
    .slide-8 .header,
    .slide-9 .header,
    .slide-10 .header,
    .slide-11 .header,
    .slide-12 .header,
    .slide-13 .content,
    .slide-14 .header {
        padding: 30px 40px 15px;
    }

    .slide-2 .content,
    .slide-4 .content,
    .slide-5 .content,
    .slide-6 .content,
    .slide-7 .content,
    .slide-8 .content,
    .slide-9 .content,
    .slide-10 .content,
    .slide-11 .content,
    .slide-12 .content,
    .slide-14 .content {
        padding: 20px 0px 30px;
    }

    /* 字体大小调整 */
    .slide-1 .main-title {
        font-size: 48px;
    }

    .slide-1 .subtitle {
        font-size: 22px;
    }

    .slide-1 .slogan {
        font-size: 18px;
    }

    .slide-13 .slogan {
        font-size: 36px;
    }
}

/* 手机设备 (576px - 768px) */
@media (max-width: 768px) {
    .side-navigation {
        display: none;
    }

    .slide-section {
        padding: 20px 20px;
        height: auto;
        min-height: 100vh;
    }

    /* 通用标题调整 */
    .slide-1 .main-title,
    .slide-2 .title,
    .slide-3 .title,
    .slide-4 .title,
    .slide-5 .title,
    .slide-6 .title,
    .slide-7 .title,
    .slide-8 .title,
    .slide-9 .title,
    .slide-10 .title,
    .slide-11 .title,
    .slide-12 .title,
    .slide-13 .title,
    .slide-14 .title {
        font-size: 28px;
        margin-bottom: 8px;
    }

    .slide-1 .subtitle,
    .slide-2 .subtitle,
    .slide-3 .subtitle,
    .slide-4 .subtitle,
    .slide-5 .subtitle,
    .slide-6 .subtitle,
    .slide-7 .subtitle,
    .slide-8 .subtitle,
    .slide-9 .subtitle,
    .slide-10 .subtitle,
    .slide-11 .subtitle,
    .slide-12 .subtitle,
    .slide-13 .subtitle,
    .slide-14 .subtitle {
        font-size: 16px;
    }

    /* 首页特殊调整 */
    .slide-1 .main-title {
        font-size: 36px;
    }

    .slide-1 .subtitle {
        font-size: 18px;
        max-width: 90%;
    }

    .slide-1 .slogan {
        font-size: 16px;
        max-width: 90%;
        margin-bottom: 40px;
    }

    .slide-1 .support-info {
        font-size: 16px;
        padding: 10px 20px;
    }

    /* 内容区域内边距调整 */
    .slide-1 .content,
    .slide-2 .header,
    .slide-3 .header,
    .slide-4 .header,
    .slide-5 .header,
    .slide-6 .header,
    .slide-7 .header,
    .slide-8 .header,
    .slide-9 .header,
    .slide-10 .header,
    .slide-11 .header,
    .slide-12 .header,
    .slide-13 .content,
    .slide-14 .header {
        padding: 20px 20px 10px;
    }

    .slide-2 .content,
    .slide-4 .content,
    .slide-5 .content,
    .slide-6 .content,
    .slide-7 .content,
    .slide-8 .content,
    .slide-9 .content,
    .slide-10 .content,
    .slide-11 .content,
    .slide-12 .content,
    .slide-14 .content {
        padding: 15px 0px 20px;
    }

    /* 卡片内边距调整 */
    .slide-2 .challenge-card,
    .slide-4 .value-card,
    .slide-5 .system-card,
    .slide-6 .system-group,
    .slide-7 .feature-card,
    .slide-8 .system-card,
    .slide-9 .scene-card,
    .slide-10 .advantage-card,
    .slide-11 .path-card,
    .slide-12 .card,
    .slide-14 .system-card {
        padding: 20px;
    }

    /* 图标大小调整 */
    .slide-2 .challenge-icon,
    .slide-3 .layer-icon,
    .slide-4 .value-icon,
    .slide-5 .system-icon,
    .slide-6 .group-icon,
    .slide-6 .system-icon,
    .slide-7 .feature-icon,
    .slide-8 .system-icon,
    .slide-9 .scene-icon,
    .slide-10 .advantage-icon,
    .slide-11 .path-number,
    .slide-12 .section-icon,
    .slide-12 .card-icon,
    .slide-14 .system-icon {
        width: 40px;
        height: 40px;
        margin-right: 12px;
    }

    .slide-2 .challenge-icon i,
    .slide-3 .layer-icon i,
    .slide-4 .value-icon i,
    .slide-5 .system-icon i,
    .slide-6 .group-icon i,
    .slide-6 .system-icon i,
    .slide-7 .feature-icon i,
    .slide-8 .system-icon i,
    .slide-9 .scene-icon i,
    .slide-10 .advantage-icon i,
    .slide-12 .section-icon i,
    .slide-12 .card-icon i,
    .slide-14 .system-icon i {
        font-size: 20px;
    }

    .slide-11 .path-number {
        font-size: 20px;
    }

    /* 标题字体调整 */
    .slide-2 .challenge-title,
    .slide-3 .layer-title,
    .slide-4 .value-title,
    .slide-5 .system-title,
    .slide-6 .group-title,
    .slide-6 .system-name,
    .slide-7 .feature-title,
    .slide-8 .system-title,
    .slide-9 .scene-title,
    .slide-10 .advantage-title,
    .slide-11 .path-title,
    .slide-12 .section-title,
    .slide-12 .card-title,
    .slide-14 .system-title {
        font-size: 18px;
    }

    /* 描述文字调整 */
    .slide-2 .challenge-desc,
    .slide-3 .layer-desc,
    .slide-4 .value-desc,
    .slide-5 .system-desc,
    .slide-6 .system-desc,
    .slide-7 .feature-desc,
    .slide-8 .system-desc,
    .slide-9 .scene-desc,
    .slide-10 .advantage-desc,
    .slide-11 .path-desc,
    .slide-12 .card-desc,
    .slide-14 .system-desc {
        font-size: 14px;
    }

    /* 特性列表调整 */
    .slide-4 .feature-text,
    .slide-5 .feature-text,
    .slide-7 .feature-text,
    .slide-8 .feature-text,
    .slide-9 .feature-text,
    .slide-10 .feature-text,
    .slide-14 .feature-text {
        font-size: 14px;
    }

    /* 介绍文字调整 */
    .slide-3 .model-intro p,
    .slide-4 .intro-text p,
    .slide-5 .value-statement p,
    .slide-6 .intro-text p,
    .slide-7 .value-statement p,
    .slide-8 .value-statement p,
    .slide-9 .intro-text p,
    .slide-10 .intro-text p,
    .slide-11 .intro-text p,
    .slide-14 .intro-text p {
        font-size: 16px;
    }

    /* 核心系统标签调整 */
    .slide-3 .system,
    .slide-5 .core-system,
    .slide-8 .core-system {
        font-size: 14px;
        padding: 8px 12px;
    }

    /* 联系页面调整 */
    .slide-13 .slogan {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .slide-13 .contact-title {
        font-size: 18px;
    }

    .slide-13 .contact-item {
        font-size: 16px;
        flex-basis: 100%;
        justify-content: center;
    }

    .slide-13 .contact-items {
        gap: 20px;
    }

    /* 图片区域高度调整 */
    .slide-7 .feature-image,
    .slide-8 .system-image,
    .slide-9 .scene-image,
    .slide-14 .system-image {
        height: 120px;
    }

    /* 装饰元素隐藏 */
    .tech-icon,
    .decoration {
        display: none;
    }
}

/* 小屏手机设备 (小于576px) */
@media (max-width: 576px) {
    .slide-section {
        padding: 15px 15px;
    }

    /* 通用标题进一步缩小 */
    .slide-1 .main-title,
    .slide-2 .title,
    .slide-3 .title,
    .slide-4 .title,
    .slide-5 .title,
    .slide-6 .title,
    .slide-7 .title,
    .slide-8 .title,
    .slide-9 .title,
    .slide-10 .title,
    .slide-11 .title,
    .slide-12 .title,
    .slide-13 .title,
    .slide-14 .title {
        font-size: 24px;
    }

    .slide-1 .main-title {
        font-size: 32px;
    }

    .slide-1 .subtitle {
        font-size: 16px;
    }

    .slide-13 .slogan {
        font-size: 24px;
    }

    /* 内容区域进一步压缩 */
    .slide-1 .content,
    .slide-2 .header,
    .slide-3 .header,
    .slide-4 .header,
    .slide-5 .header,
    .slide-6 .header,
    .slide-7 .header,
    .slide-8 .header,
    .slide-9 .header,
    .slide-10 .header,
    .slide-11 .header,
    .slide-12 .header,
    .slide-13 .content,
    .slide-14 .header {
        padding: 15px 15px 8px;
    }

    .slide-2 .content,
    .slide-4 .content,
    .slide-5 .content,
    .slide-6 .content,
    .slide-7 .content,
    .slide-8 .content,
    .slide-9 .content,
    .slide-10 .content,
    .slide-11 .content,
    .slide-12 .content,
    .slide-14 .content {
        padding: 10px 0px 15px;
    }

    /* 卡片内边距进一步压缩 */
    .slide-2 .challenge-card,
    .slide-4 .value-card,
    .slide-5 .system-card,
    .slide-6 .system-group,
    .slide-7 .feature-card,
    .slide-8 .system-card,
    .slide-9 .scene-card,
    .slide-10 .advantage-card,
    .slide-11 .path-card,
    .slide-12 .card,
    .slide-14 .system-card {
        padding: 15px;
    }

    /* 间距进一步缩小 */
    .slide-2 .content,
    .slide-4 .value-cards,
    .slide-5 .systems-container,
    .slide-6 .systems-container,
    .slide-7 .features-container,
    .slide-8 .systems-container,
    .slide-9 .scenes-container,
    .slide-10 .advantages-container,
    .slide-11 .paths-container,
    .slide-12 .sections-container,
    .slide-14 .systems-container {
        gap: 15px;
    }

    .slide-3 .systems,
    .slide-5 .core-systems,
    .slide-8 .core-systems {
        gap: 8px;
    }

    /* 图标进一步缩小 */
    .slide-2 .challenge-icon,
    .slide-3 .layer-icon,
    .slide-4 .value-icon,
    .slide-5 .system-icon,
    .slide-6 .group-icon,
    .slide-6 .system-icon,
    .slide-7 .feature-icon,
    .slide-8 .system-icon,
    .slide-9 .scene-icon,
    .slide-10 .advantage-icon,
    .slide-11 .path-number,
    .slide-12 .section-icon,
    .slide-12 .card-icon,
    .slide-12 .action-icon,
    .slide-14 .system-icon {
        width: 35px;
        height: 35px;
        margin-right: 10px;
    }

    .slide-2 .challenge-icon i,
    .slide-3 .layer-icon i,
    .slide-4 .value-icon i,
    .slide-5 .system-icon i,
    .slide-6 .group-icon i,
    .slide-6 .system-icon i,
    .slide-7 .feature-icon i,
    .slide-8 .system-icon i,
    .slide-9 .scene-icon i,
    .slide-10 .advantage-icon i,
    .slide-12 .section-icon i,
    .slide-12 .action-icon i,
    .slide-12 .card-icon i,
    .slide-14 .system-icon i {
        font-size: 18px;
    }

    .slide-11 .path-number {
        font-size: 18px;
    }
}

/* 横屏手机特殊处理 */
@media (max-height: 500px) and (orientation: landscape) {
    .slide-section {
        min-height: auto;
        height: auto;
        padding: 20px;
    }

    .slide-1 .main-title {
        font-size: 28px;
        margin-bottom: 10px;
    }

    .slide-1 .subtitle {
        font-size: 16px;
        margin-bottom: 15px;
    }

    .slide-1 .slogan {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .slide-13 .slogan {
        font-size: 24px;
        margin-bottom: 20px;
    }
}

/* 超小屏设备适配 */
@media (max-width: 360px) {
    .slide-section {
        padding: 10px 10px;
    }

    .slide-1 .main-title {
        font-size: 28px;
    }

    .slide-1 .subtitle {
        font-size: 14px;
    }

    .slide-13 .slogan {
        font-size: 20px;
    }

    .slide-1 .content,
    .slide-2 .header,
    .slide-3 .header,
    .slide-4 .header,
    .slide-5 .header,
    .slide-6 .header,
    .slide-7 .header,
    .slide-8 .header,
    .slide-9 .header,
    .slide-10 .header,
    .slide-11 .header,
    .slide-12 .header,
    .slide-13 .content,
    .slide-14 .header {
        padding: 10px 10px 5px;
    }
}

/* 防止横屏时内容溢出 */
@media (max-width: 768px) {
    html, body {
        overflow-x: hidden;
        position: relative;
    }

    .slide-section {
        overflow: hidden;
    }

    img {
        max-width: 100%;
        height: auto;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .nav-btn:hover {
        transform: none;
        background: rgba(255, 255, 255, 0.3);
    }

    .nav-btn.active:hover {
        background: #4fc3f7;
        transform: scale(1.2);
    }

    .challenge-card:hover,
    .value-card:hover,
    .system-card:hover,
    .feature-card:hover,
    .scene-card:hover,
    .advantage-card:hover,
    .path-card:hover,
    .card:hover,
    .action-card:hover,
    .system-group:hover,
    .layer:hover {
        transform: none;
        box-shadow: 0 4px 12px rgba(0, 87, 184, 0.1);
    }
}