/* ===== 关于我们页面专用样式 ===== */
    /* 重置继承的布局影响 */
    .main-content-wrapper {
        margin-left: 180px;
        width: calc(100% - 180px);
        transition: margin-left 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    body.sidebar-collapsed .main-content-wrapper {
        margin-left: 50px;
        width: calc(100% - 50px);
    }
    
    @media (max-width: 768px) {
        .main-content-wrapper {
            margin-left: 0 !important;
            width: 100% !important;
        }
    }
    
    /* 关于我们页面主内容区 */
    .about-page-content {
        padding: 10px var(--spacing-lg);
        max-width: 1400px;
        margin: 0 auto;
        width: 100%;
    }
    
    /* 两列布局容器 */
    .about-layout {
        display: flex;
        gap: var(--spacing-3xl);
        width: 100%;
    }
    
    @media (max-width: 1024px) {
        .about-layout {
            flex-direction: column;
            gap: var(--spacing-2xl);
        }
    }
    
    /* 左列 - 宽列 */
    .about-main-column {
        flex: 1;
        min-width: 0; /* 防止内容溢出 */
    }
    
    /* 右列 - 窄列 */
    .about-sidebar-column {
        width: 320px;
        flex-shrink: 0;
    }
    
    @media (max-width: 1024px) {
        .about-sidebar-column {
            width: 100%;
        }
    }
    
    /* ===== 通用模块样式 ===== */
    .about-section {
        margin-bottom: var(--spacing-4xl);
        scroll-margin-top: 30px;
    }
    
    .about-section:last-child {
        margin-bottom: 0;
    }
    
    .about-title {
        font-size: var(--font-size-2xl);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-xl);
        position: relative;
        padding-bottom: var(--spacing-sm);
    }
    
    .about-title::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 60px;
        height: 3px;
        background: var(--color-primary);
        border-radius: 2px;
    }
    
    .about-content {
        color: var(--color-text);
        line-height: 1.7;
    }
    
/* ===== 模块一：企业品牌简介 ===== */
.about-profile {
    background: var(--color-card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .about-profile {
        padding: var(--spacing-xl);
    }
}

.profile-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-3xl);
}

@media (max-width: 768px) {
    .profile-content {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
}

.profile-text {
    flex: 1;
}

/* 修改图片容器 - 固定高度，宽度自适应 */
.profile-image {
    width: 40%;
    flex-shrink: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
    cursor: pointer;
    background: #f5f5f5; /* 加载背景 */
    height: 480px; /* 固定高度 */
}

@media (max-width: 1024px) {
    .profile-image {
        height: 240px; /* 平板固定高度 */
    }
}

@media (max-width: 768px) {
    .profile-image {
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
        height: 300px; /* 移动端固定高度 */
    }
}

/* 图片样式 - 固定高度内完整显示 */
.profile-image img {
    width: 100%;
    height: 100%; /* 填满固定高度 */
    display: block;
    transition: transform 0.3s ease;
    object-fit: cover; /* 覆盖容器，可能裁剪 */
}

.profile-image:hover img {
    transform: scale(1.05);
}

/* 放大镜图标 */
.image-zoom-icon {
    position: absolute;
    bottom: 15px;
    right: 15px;
    width: 44px;
    height: 44px;
    background: rgba(26, 86, 219, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    pointer-events: none;
}

.profile-image:hover .image-zoom-icon {
    opacity: 1;
}

/* 图片模态框 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.image-modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    object-fit: contain; /* 保持原始比例显示完整图片 */
}

.image-modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: all 0.3s;
}

.image-modal-close:hover {
    background: rgba(255,255,255,0.2);
    color: var(--color-primary);
    transform: rotate(90deg);
}

/* 深色模式适配 */
[data-theme="dark"] .profile-image {
    background: #1a1a1a;
}

[data-theme="dark"] .image-zoom-icon {
    background: var(--color-primary);
}
    
    
    
    .about-h1 {
        font-size: var(--font-size-3xl);
        font-weight: var(--font-weight-bold);
        color: var(--color-primary);
        margin-bottom: var(--spacing-md);
        line-height: 1.2;
    }
    
    @media (max-width: 768px) {
        .about-h1 {
            font-size: var(--font-size-2xl);
        }
    }
    
    .profile-highlights {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-md);
        margin-top: var(--spacing-xl);
    }
    
    .highlight-item {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        background: rgba(26, 86, 219, 0.08);
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--radius-md);
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
        color: var(--color-primary);
    }
    
    .highlight-item i {
        font-size: var(--font-size-md);
    }
    
    /* ===== 模块二：企业实力与优势 ===== */
    .advantages-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
    }
    
    @media (max-width: 1024px) {
        .advantages-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 640px) {
        .advantages-grid {
            grid-template-columns: 1fr;
        }
    }
    
    .advantage-card {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    
    .advantage-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-md);
        border-color: var(--color-primary);
    }
    
    .advantage-icon {
        width: 60px;
        height: 60px;
        background: rgba(26, 86, 219, 0.1);
        border-radius: var(--radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: var(--spacing-lg);
        color: var(--color-primary);
        font-size: var(--font-size-2xl);
    }
    
    .advantage-title {
        font-size: var(--font-size-lg);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-sm);
    }
    
    .advantage-desc {
        color: var(--color-muted);
        font-size: var(--font-size-md);
        line-height: 1.6;
        flex: 1;
    }
    
   /* ===== 模块三：企业资质与认证 - 精简优化版 ===== */
    .certifications-container {
        background: var(--color-card-bg);
        border-radius: var(--radius-xl);
        padding: var(--spacing-2xl) var(--spacing-xl);
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-sm);
        position: relative;
        overflow: hidden;
    }
    
    /* 添加背景装饰元素 */
    .certifications-container::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -50%;
        width: 300px;
        height: 300px;
        background: radial-gradient(circle, rgba(26, 86, 219, 0.05) 0%, transparent 70%);
        border-radius: 50%;
        z-index: 0;
    }
    
    @media (max-width: 768px) {
        .certifications-container {
            padding: var(--spacing-xl) var(--spacing-lg);
        }
    }
    
    /* 证书网格布局 - 保持4:5比例卡片 */
    .certifications-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-lg);
        margin: 0;
        position: relative;
        z-index: 1;
    }
    
    @media (max-width: 1200px) {
        .certifications-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
    }
    
    @media (max-width: 640px) {
        .certifications-grid {
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
        }
    }

    /* 证书卡片样式 - 高度精简 */
    .certification-card {
        background: white;
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-md);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border: 1px solid var(--color-border);
        display: flex;
        flex-direction: column;
        height: 100%;
        position: relative;
        text-decoration: none;
        color: inherit;
        outline: none;
        transform: translateY(0);
        isolation: isolate;
        min-height: 350px; /* 限制最小高度 */
    }
    
    [data-theme="dark"] .certification-card {
        background: var(--color-card-bg);
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    /* 悬停效果 */
    .certification-card:hover,
    .certification-card:focus {
        transform: translateY(-8px) scale(1.02);
        box-shadow: 
            0 16px 32px rgba(0, 0, 0, 0.12),
            0 0 0 1px var(--color-primary);
        border-color: var(--color-primary);
        z-index: 10;
    }
    
    [data-theme="dark"] .certification-card:hover,
    [data-theme="dark"] .certification-card:focus {
        box-shadow: 
            0 16px 32px rgba(0, 0, 0, 0.35),
            0 0 0 1px var(--color-primary);
    }
    
    /* 卡片顶部装饰条 */
    .certification-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 0.4s ease;
        z-index: 2;
    }
    
    .certification-card:hover::before,
    .certification-card:focus::before {
        transform: scaleX(1);
    }
    
    /* 卡片头部 - 图片区域 (4:5比例) */
    .cert-card-header {
        position: relative;
        padding-top: 125%; /* 4:5比例 */
        background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
        overflow: hidden;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        flex-shrink: 0; /* 防止图片区域被压缩 */
    }
    
    [data-theme="dark"] .cert-card-header {
        background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    }
    
    /* 图片包装器 */
    .cert-image-wrapper {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-lg);
    }
    
    /* 证书图片 */
    .cert-image {
        width: 100%;
        height: 100%;
        object-fit: contain;
        border-radius: var(--radius-sm);
        transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        background: white;
        padding: var(--spacing-sm);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        filter: brightness(1);
    }
    
    [data-theme="dark"] .cert-image {
        background: var(--color-bg);
    }
    
    .certification-card:hover .cert-image,
    .certification-card:focus .cert-image {
        transform: scale(1.06);
        filter: brightness(1.05);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }
    
    /* 图片悬停遮罩 */
    .cert-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(to bottom, 
            rgba(26, 86, 219, 0) 0%,
            rgba(26, 86, 219, 0.1) 50%,
            rgba(26, 86, 219, 0.85) 100%);
        display: flex;
        align-items: flex-end;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.4s ease;
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
    
    .certification-card:hover .cert-overlay,
    .certification-card:focus .cert-overlay {
        opacity: 1;
    }
    
    .cert-view-text {
        color: white;
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
        background: rgba(0, 0, 0, 0.7);
        padding: var(--spacing-xs) var(--spacing-md);
        border-radius: var(--radius-full);
        transform: translateY(15px);
        transition: transform 0.3s ease;
        backdrop-filter: blur(4px);
    }
    
    .certification-card:hover .cert-view-text,
    .certification-card:focus .cert-view-text {
        transform: translateY(0);
    }
    
    /* 证书徽章 */
    .cert-badge {
        position: absolute;
        top: 12px;
        right: 12px;
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
        border-radius: var(--radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: var(--font-size-sm);
        box-shadow: 0 4px 8px rgba(26, 86, 219, 0.3);
        z-index: 2;
        transition: all 0.3s ease;
    }
    
    .certification-card:hover .cert-badge,
    .certification-card:focus .cert-badge {
        transform: scale(1.1) rotate(10deg);
        box-shadow: 0 6px 12px rgba(26, 86, 219, 0.4);
    }
    
    /* 卡片主体 - 精简版 */
    .cert-card-body {
        padding: var(--spacing-md) var(--spacing-lg);
        flex-shrink: 0; /* 防止被压缩 */
        min-height: 70px; /* 固定高度 */
        display: flex;
        flex-direction: column;
        justify-content: center;
        position: relative;
        z-index: 1;
        background: white;
        border-top: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    [data-theme="dark"] .cert-card-body {
        background: var(--color-card-bg);
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    /* 证书标题 - 精简 */
    .cert-title {
        font-size: var(--font-size-md);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-xs);
        line-height: 1.3;
        text-align: center;
        display: -webkit-box;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    /* 证书编号 */
    .cert-number {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-xs);
        color: var(--color-muted);
        font-size: var(--font-size-xs);
        font-weight: var(--font-weight-medium);
        text-align: center;
    }
    
    .cert-number i {
        color: var(--color-primary);
        font-size: var(--font-size-sm);
    }
    
    /* 描述层 - 悬停时显示 */
    .cert-desc-layer {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        background: linear-gradient(to bottom, 
            rgba(255, 255, 255, 0.95) 0%,
            rgba(255, 255, 255, 0.98) 100%);
        padding: var(--spacing-lg);
        opacity: 0;
        transform: translateY(100%);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 5;
        border-top: 1px solid var(--color-border);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
        max-height: 150px;
        overflow: hidden;
    }
    
    [data-theme="dark"] .cert-desc-layer {
        background: linear-gradient(to bottom, 
            rgba(30, 41, 59, 0.95) 0%,
            rgba(30, 41, 59, 0.98) 100%);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .certification-card:hover .cert-desc-layer,
    .certification-card:focus .cert-desc-layer {
        opacity: 1;
        transform: translateY(0);
    }
    
    /* 证书描述 */
    .cert-desc {
        color: var(--color-text);
        font-size: var(--font-size-sm);
        line-height: 1.5;
        margin: 0;
        text-align: center;
        display: -webkit-box;
        -webkit-line-clamp: 4;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    [data-theme="dark"] .cert-desc {
        color: var(--color-muted);
    }
    
    /* 焦点状态样式 */
    .certification-card:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
    }
    
    /* 加载动画效果 */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(15px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .certification-card {
        animation: fadeInUp 0.5s ease forwards;
        opacity: 0;
    }
    
    .certification-card:nth-child(1) {
        animation-delay: 0.1s;
    }
    
    .certification-card:nth-child(2) {
        animation-delay: 0.2s;
    }
    
    .certification-card:nth-child(3) {
        animation-delay: 0.3s;
    }
    
    .certification-card:nth-child(4) {
        animation-delay: 0.4s;
    }
    
    /* 响应式调整 */
    @media (max-width: 1024px) {
        .certifications-grid {
            gap: var(--spacing-md);
        }
        
        .cert-card-header {
            padding-top: 120%; /* 稍微调整比例适应平板 */
        }
        
        .certification-card {
            min-height: 320px;
        }
    }
    
    @media (max-width: 768px) {
        .cert-desc-layer {
            padding: var(--spacing-md);
            max-height: 120px;
        }
        
        .cert-desc {
            font-size: var(--font-size-xs);
            -webkit-line-clamp: 3;
        }
        
        .certification-card:hover,
        .certification-card:focus {
            transform: translateY(-6px) scale(1.01);
        }
    }
    
    /* 打印样式 */
    @media print {
        .certifications-container {
            box-shadow: none;
            border: 1px solid #ddd;
        }
        
        .certification-card {
            break-inside: avoid;
            box-shadow: none;
            border: 1px solid #ddd;
            min-height: auto;
        }
        
        .cert-desc-layer {
            position: relative;
            opacity: 1;
            transform: none;
            box-shadow: none;
            max-height: none;
        }
        
        .cert-overlay {
            display: none;
        }
    }
    /* ===== 模块四：团队介绍 ===== */
    .team-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    
    @media (max-width: 1024px) {
        .team-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 640px) {
        .team-grid {
            grid-template-columns: 1fr;
        }
    }
    
    .team-member {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
        transition: transform 0.3s ease;
    }
    
    .team-member:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-md);
    }
    
    .member-photo {
        width: 100%;
        height: 280px;
        overflow: hidden;
    }
    
    .member-photo img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    
    .team-member:hover .member-photo img {
        transform: scale(1.05);
    }
    
    .member-info {
        padding: var(--spacing-xl);
    }
    
    .member-name {
        font-size: var(--font-size-lg);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-xs);
    }
    
    .member-position {
        color: var(--color-primary);
        font-weight: var(--font-weight-medium);
        margin-bottom: var(--spacing-md);
        font-size: var(--font-size-md);
    }
    
    .member-bio {
        color: var(--color-muted);
        font-size: var(--font-size-sm);
        line-height: 1.6;
    }
    
    /* ===== 模块五：发展历程 ===== */
    .timeline {
        position: relative;
        max-width: 800px;
        margin: 0 auto;
    }
    
    .timeline::before {
        content: '';
        position: absolute;
        left: 30px;
        top: 0;
        bottom: 0;
        width: 3px;
        background: var(--color-primary);
        border-radius: 3px;
    }
    
    @media (min-width: 768px) {
        .timeline::before {
            left: 50%;
            transform: translateX(-50%);
        }
    }
    
    .timeline-item {
        position: relative;
        margin-bottom: var(--spacing-3xl);
        display: flex;
        align-items: flex-start;
    }
    
    @media (min-width: 768px) {
        .timeline-item {
            width: 50%;
            margin-bottom: var(--spacing-4xl);
        }
        
        .timeline-item:nth-child(odd) {
            padding-right: var(--spacing-3xl);
            justify-content: flex-end;
        }
        
        .timeline-item:nth-child(even) {
            margin-left: auto;
            padding-left: var(--spacing-3xl);
        }
    }
    
    .timeline-marker {
        position: absolute;
        left: 20px;
        top: 0;
        width: 22px;
        height: 22px;
        background: var(--color-primary);
        border-radius: var(--radius-full);
        border: 4px solid var(--color-bg);
        z-index: 1;
    }
    
    @media (min-width: 768px) {
        .timeline-marker {
            left: 50%;
            transform: translateX(-50%);
        }
    }
    
    .timeline-content {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-xl);
        margin-left: 60px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
        width: calc(100% - 60px);
    }
    
    @media (min-width: 768px) {
        .timeline-content {
            margin-left: 0;
            width: 100%;
        }
        
        .timeline-item:nth-child(odd) .timeline-content {
            text-align: right;
        }
    }
    
    .timeline-year {
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-bold);
        color: var(--color-primary);
        margin-bottom: var(--spacing-sm);
    }
    
    .timeline-event {
        font-size: var(--font-size-lg);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-xs);
    }
    
    .timeline-desc {
        color: var(--color-muted);
        line-height: 1.6;
    }
    
    /* ===== 模块五：发展历程 - 3D浮动悬停效果（新增，不替换原有样式）===== */
.timeline-item {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.timeline-item:hover {
    transform: translateY(-8px) scale(1.02) rotateX(2deg);
    z-index: 10;
}

.timeline-content {
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
    backface-visibility: hidden;
    position: relative;
    will-change: transform, box-shadow;
}

.timeline-item:hover .timeline-content {
    box-shadow: 
        0 20px 30px -10px rgba(26, 86, 219, 0.3),
        0 0 0 1px var(--color-primary) inset,
        0 0 20px rgba(26, 86, 219, 0.2);
    background: linear-gradient(
        to bottom,
        var(--color-card-bg),
        rgba(26, 86, 219, 0.02)
    );
}

/* 左侧和右侧的不同3D旋转效果 */
@media (min-width: 768px) {
    /* 左侧卡片（奇数项）向右旋转 */
    .timeline-item:nth-child(odd):hover .timeline-content {
        transform: rotateY(-3deg) rotateX(1deg);
        transform-origin: right center;
    }
    
    /* 右侧卡片（偶数项）向左旋转 */
    .timeline-item:nth-child(even):hover .timeline-content {
        transform: rotateY(3deg) rotateX(1deg);
        transform-origin: left center;
    }
}

/* 年份数字3D效果 */
.timeline-year {
    transition: all 0.4s ease;
    transform-style: preserve-3d;
    display: inline-block;
    position: relative;
}

.timeline-item:hover .timeline-year {
    transform: translateZ(15px) scale(1.1);
    text-shadow: 
        0 5px 10px rgba(26, 86, 219, 0.3),
        2px 2px 0 rgba(26, 86, 219, 0.1),
        -1px -1px 0 rgba(255, 255, 255, 0.5);
    color: var(--color-primary);
}

/* 事件标题3D效果 */
.timeline-event {
    transition: all 0.4s ease;
    transform-style: preserve-3d;
}

.timeline-item:hover .timeline-event {
    transform: translateZ(10px);
    color: var(--color-primary);
}

/* 描述文字3D效果 */
.timeline-desc {
    transition: all 0.4s ease;
    transform-style: preserve-3d;
}

.timeline-item:hover .timeline-desc {
    transform: translateZ(8px);
    color: var(--color-text);
}

/* 时间轴标记点3D效果 */
.timeline-marker {
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform-style: preserve-3d;
    box-shadow: 0 0 0 4px var(--color-bg);
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.3) translateZ(20px);
    background: var(--color-primary);
    box-shadow: 
        0 0 0 4px var(--color-bg),
        0 10px 20px rgba(26, 86, 219, 0.4);
}

/* 添加3D立体边缘效果 */
.timeline-content::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.2) 0%,
        rgba(255, 255, 255, 0) 50%,
        rgba(26, 86, 219, 0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.timeline-item:hover .timeline-content::after {
    opacity: 1;
}

/* 添加浮动阴影效果 */
@keyframes floatShadow {
    0% {
        box-shadow: 0 15px 25px -10px rgba(26, 86, 219, 0.2);
    }
    50% {
        box-shadow: 0 25px 35px -10px rgba(26, 86, 219, 0.4);
    }
    100% {
        box-shadow: 0 15px 25px -10px rgba(26, 86, 219, 0.2);
    }
}

.timeline-item:hover .timeline-content {
    animation: floatShadow 3s ease-in-out infinite;
}

/* 移动端简化效果 */
@media (max-width: 767px) {
    .timeline-item:hover {
        transform: translateY(-5px) scale(1.01);
    }
    
    .timeline-item:hover .timeline-content {
        transform: none;
        box-shadow: 0 15px 25px -5px rgba(26, 86, 219, 0.25);
    }
    
    .timeline-item:hover .timeline-marker {
        transform: scale(1.2);
    }
}

/* 深色模式适配 */
[data-theme="dark"] .timeline-item:hover .timeline-content {
    box-shadow: 
        0 20px 30px -10px rgba(26, 86, 219, 0.5),
        0 0 0 1px var(--color-primary) inset,
        0 0 30px rgba(26, 86, 219, 0.3);
    background: linear-gradient(
        to bottom,
        var(--color-card-bg),
        rgba(26, 86, 219, 0.1)
    );
}

[data-theme="dark"] .timeline-item:hover .timeline-year {
    text-shadow: 
        0 5px 15px rgba(26, 86, 219, 0.5),
        0 0 10px rgba(26, 86, 219, 0.3);
}
    
    /* ===== 模块六：工厂环境 ===== */
    .gallery-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }
    
    @media (max-width: 1024px) {
        .gallery-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 640px) {
        .gallery-grid {
            grid-template-columns: 1fr;
        }
    }
    
    .gallery-item {
        border-radius: var(--radius-lg);
        overflow: hidden;
        position: relative;
        height: 240px;
        cursor: pointer;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
    }
    
    .gallery-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    
    .gallery-item:hover img {
        transform: scale(1.05);
    }
    
    .gallery-overlay {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
        padding: var(--spacing-lg);
        color: white;
        transform: translateY(100%);
        transition: transform 0.3s ease;
    }
    
    .gallery-item:hover .gallery-overlay {
        transform: translateY(0);
    }
    
    .gallery-caption {
        font-weight: var(--font-weight-medium);
        font-size: var(--font-size-md);
    }
    
    /* ===== 模块七：合作伙伴 ===== */
    .partners-container {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-xl);
        border: 1px solid var(--color-border);
    }
    
    .partners-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: var(--spacing-xl);
        align-items: center;
    }
    
    @media (max-width: 1024px) {
        .partners-grid {
            grid-template-columns: repeat(4, 1fr);
        }
    }
    
    @media (max-width: 768px) {
        .partners-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }
    
    @media (max-width: 480px) {
        .partners-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    .partner-item {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 100px;
        padding: var(--spacing-md);
        background: white;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        transition: transform 0.3s ease;
        border: 1px solid var(--color-border);
    }
    
    .partner-item:hover {
        transform: scale(1.05);
        box-shadow: var(--shadow-md);
    }
    
    [data-theme="dark"] .partner-item {
        background: var(--color-card-bg);
    }
    
    .partner-logo {
        max-width: 100%;
        max-height: 100%;
        filter: grayscale(100%);
        opacity: 0.7;
        transition: filter 0.3s ease, opacity 0.3s ease;
    }
    
    .partner-item:hover .partner-logo {
        filter: grayscale(0%);
        opacity: 1;
    }
    
    /* ===== 模块八：企业愿景与使命 ===== */
    .vision-mission {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-3xl);
    }
    
    @media (max-width: 768px) {
        .vision-mission {
            grid-template-columns: 1fr;
            gap: var(--spacing-2xl);
        }
    }
    
    .vision-box, .mission-box {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-3xl);
        text-align: center;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    @media (max-width: 768px) {
        .vision-box, .mission-box {
            padding: var(--spacing-xl);
        }
    }
    
    .vision-icon, .mission-icon {
        width: 80px;
        height: 80px;
        background: rgba(26, 86, 219, 0.1);
        border-radius: var(--radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: var(--spacing-xl);
        color: var(--color-primary);
        font-size: var(--font-size-3xl);
    }
    
    .vision-title, .mission-title {
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-md);
    }
    
    .vision-text, .mission-text {
        color: var(--color-muted);
        line-height: 1.7;
        font-size: var(--font-size-lg);
    }
    
    /* ===== 模块八：企业愿景与使命 - 悬移动感效果（新增，不替换原有样式）===== */
    .vision-box, .mission-box {
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }
    
    .vision-box:hover, .mission-box:hover {
        transform: translateY(-8px);
        box-shadow: 0 15px 30px rgba(26, 86, 219, 0.15);
        border-color: var(--color-primary);
    }
    
    .vision-icon, .mission-icon {
        transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
    }
    
    .vision-box:hover .vision-icon,
    .mission-box:hover .mission-icon {
        transform: scale(1.1) rotate(5deg);
        background-color: var(--color-primary);
        color: white;
    }
    
    .vision-title, .mission-title {
        transition: color 0.3s ease;
    }
    
    .vision-box:hover .vision-title,
    .mission-box:hover .mission-title {
        color: var(--color-primary);
    }
    
    /* 深色模式适配 */
    [data-theme="dark"] .vision-box:hover,
    [data-theme="dark"] .mission-box:hover {
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    }
    
    /* ===== 右侧栏模块 ===== */
    .about-sidebar {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-2xl);
    }
    
    .sidebar-box {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-border);
    }
    
    .sidebar-title {
        font-size: var(--font-size-lg);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-sm);
        border-bottom: 2px solid var(--color-primary);
    }
    
    /* 联系我们模块 */
    .contact-details {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .contact-item {
        display: flex;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
        background: rgba(26, 86, 219, 0.1);
        border-radius: var(--radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--color-primary);
        flex-shrink: 0;
    }
    
    .contact-info {
        flex: 1;
    }
    
    .contact-label {
        font-size: var(--font-size-sm);
        color: var(--color-muted);
        margin-bottom: var(--spacing-xs);
    }
    
    .contact-value {
        font-weight: var(--font-weight-medium);
        color: var(--color-text);
        font-size: var(--font-size-md);
    }
    
    .contact-value a {
        color: var(--color-primary) !important;
        text-decoration: none;
    }
    
    .contact-value a:hover {
        text-decoration: underline;
    }
    
    /* 联系我们模块 - 悬浮效果 */
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.contact-item:hover {
    background: var(--color-card-bg);
    border-color: var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateX(8px) translateY(-2px);
}

.contact-item:hover .contact-icon {
    background: var(--color-primary);
    color: white;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 16px rgba(26, 86, 219, 0.2);
}

.contact-icon {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-item:hover .contact-label {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.contact-label {
    transition: color 0.3s ease;
}

.contact-item:hover .contact-value {
    color: var(--color-text);
    transform: translateX(4px);
}

.contact-value {
    transition: all 0.3s ease;
}

.contact-item:hover .contact-value a {
    color: var(--color-secondary) !important;
    text-decoration: underline;
}

/* 添加脉冲光效 */
.contact-item::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(26, 86, 219, 0.1);
    border-radius: var(--radius-full);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
    z-index: -1;
    pointer-events: none;
}

.contact-item:hover::after {
    width: 100%;
    height: 100%;
}

/* 确保contact-item有相对定位 */
.contact-item {
    position: relative;
    overflow: hidden;
}

/* 深色模式适配 */
[data-theme="dark"] .contact-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .contact-item:hover .contact-icon {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}
    
    /* ===== 新闻模块简约优化版 ===== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.news-item {
    display: flex;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.news-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.news-item:hover {
    transform: translateX(8px);
}

.news-image {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.news-item:hover .news-image {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.15);
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-item:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    flex: 1;
}

.news-title {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;  /* 从2改成1 */
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.news-title a {
    color: inherit;
    text-decoration: none;
}

.news-title a:hover {
    color: var(--color-primary);
}

.news-item:hover .news-title {
    color: var(--color-primary);
}

/* 新闻模块 - 描述文字样式优化 */
.news-content p {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--spacing-xs);
    /* 多行文本溢出隐藏（对SEO友好，搜索引擎能看到完整内容） */
    display: -webkit-box;
    -webkit-line-clamp: 2;  /* 显示2行 */
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    max-height: 3em;  /* 2行 * 1.5行高 = 3em */
}

/* 如果需要更精细的控制，可以针对不同屏幕调整 */
@media (max-width: 768px) {
    .news-content p {
        -webkit-line-clamp: 1;  /* 移动端显示1行 */
        max-height: 1.5em;
    }
}

.news-date {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-date::before {
    content: '📅';
    font-size: 12px;
    opacity: 0.7;
}

.news-item:hover .news-date {
    color: var(--color-text);
}

.news-item:hover .news-date::before {
    opacity: 1;
}
    
    /* ===== 响应式调整 ===== */
    @media (max-width: 768px) {
        .about-page-content {
            padding: var(--spacing-xl) var(--spacing-md);
        }
        
        .about-section {
            margin-bottom: var(--spacing-3xl);
        }
        
        .about-title {
            font-size: var(--font-size-xl);
            margin-bottom: var(--spacing-lg);
        }
    }
    
    /* ===== Schema微数据标记（用于SEO） ===== */
    /* 这些样式不会被渲染，仅用于标记 */
    .schema-organization,
    .schema-localbusiness {
        display: none;
    }
    
    /* ===== 企业品牌简介模块入场动画 ===== */
@keyframes gentleSlide {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.about-profile {
    animation: gentleSlide 0.8s ease-out;
}

/* ===== 新闻模块入场动画 ===== */
@keyframes newsFadeIn {
    0% {
        opacity: 0;
        transform: translateX(-10px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.news-item {
    animation: newsFadeIn 0.5s ease-out forwards;
    opacity: 0;
}

.news-item:nth-child(1) { animation-delay: 0.1s; }
.news-item:nth-child(2) { animation-delay: 0.2s; }
.news-item:nth-child(3) { animation-delay: 0.3s; }
.news-item:nth-child(4) { animation-delay: 0.4s; }