/* 新增资料下载详情页专用样式 */
    /* ===== 面包屑导航样式 ===== */
.breadcrumb-nav {
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-muted);
}

.breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--animation-speed-fast);
}

.breadcrumb a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--color-muted);
    font-size: 10px;
}

.breadcrumb-current {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}
    
    /* ===== 主内容区布局 ===== */
    .main-content-container {
        display: flex;
        gap: var(--spacing-2xl);
        margin-bottom: var(--spacing-4xl);
    }
    
    .content-left {
        flex: 7;
        min-width: 0;
    }
    
    .content-right {
        flex: 3;
        min-width: 0;
    }
    
    /* ===== 资料详情主区域样式 ===== */
    .download-detail {
        background: var(--color-card-bg);
        border-radius: var(--radius-xl);
        padding: var(--spacing-2xl);
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-sm);
        margin-bottom: var(--spacing-2xl);
    }
    
    .download-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: var(--spacing-xl);
        padding-bottom: var(--spacing-lg);
        border-bottom: 2px solid var(--color-border);
    }
    
    .download-title-section {
        flex: 1;
    }
    
    .download-title {
        font-size: 1.8rem;
        font-weight: var(--font-weight-bold);
        color: var(--color-text);
        line-height: 1.3;
        margin-bottom: var(--spacing-sm);
    }
    
    .download-subtitle {
        color: var(--color-muted);
        font-size: var(--font-size-lg);
        line-height: 1.5;
    }
    
    .download-actions {
        display: flex;
        gap: var(--spacing-sm);
        flex-shrink: 0;
        margin-left: var(--spacing-lg);
    }
    
    .btn-download-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--color-primary);
        color: white;
        padding: 12px 24px;
        border-radius: var(--radius-md);
        font-weight: var(--font-weight-medium);
        text-decoration: none;
        transition: all var(--animation-speed-normal) ease;
        border: 2px solid var(--color-primary);
        font-size: var(--font-size-md);
        cursor: pointer;
        white-space: nowrap;
    }
    
    .btn-download-primary:hover {
        background: var(--color-secondary);
        border-color: var(--color-secondary);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }
    
    .btn-preview-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        color: var(--color-primary);
        padding: 10px 20px;
        border-radius: var(--radius-md);
        font-weight: var(--font-weight-medium);
        text-decoration: none;
        transition: all var(--animation-speed-normal) ease;
        border: 2px solid var(--color-border);
        font-size: var(--font-size-sm);
        cursor: pointer;
    }
    
    .btn-preview-secondary:hover {
        background: rgba(26, 86, 219, 0.05);
        border-color: var(--color-primary);
    }
    
    /* ===== 文件信息卡片（Grid最终版） ===== */
.file-info-card {
    background: rgba(26, 86, 219, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    border: 1px solid rgba(26, 86, 219, 0.1);
}

.file-info-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.file-info-title i {
    color: var(--color-primary);
}

/* 网格容器 - PC端自动适应最小宽度200px */
.file-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

/* 移动端强制列数 */
@media (max-width: 768px) {
    .file-info-grid {
        grid-template-columns: repeat(3, 1fr) !important; /* 3列 */
        gap: var(--spacing-md);
    }
    .file-info-card {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .file-info-grid {
        grid-template-columns: repeat(2, 1fr) !important; /* 2列 */
        gap: var(--spacing-sm);
    }
}

@media (max-width: 360px) {
    .file-info-grid {
        grid-template-columns: 1fr !important; /* 1列 */
    }
}

/* 项目内部样式 */
.file-info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.file-info-label {
    font-size: var(--font-size-sm);
    color: var(--color-muted);
    font-weight: var(--font-weight-medium);
    white-space: nowrap; /* 防止标签换行 */
}

.file-info-value {
    font-size: var(--font-size-md);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    word-break: break-word;
}

.file-size-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    /*background: var(--color-primary);*/
    color: var(--color-text);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
}

/* 移动端字体微调 */
@media (max-width: 768px) {
    .file-info-label {
        font-size: var(--font-size-xs);
    }
    .file-info-value {
        font-size: var(--font-size-sm);
    }
    .file-size-badge {
        padding: 4px 8px;
        font-size: var(--font-size-xs);
    }
}
    
    /* 资料描述区域 */
    .download-description-section {
        margin-bottom: var(--spacing-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);
    }
    
    .download-description-content {
        color: var(--color-text);
        line-height: 1.7;
        font-size: var(--font-size-md);
    }
    
    .download-description-content p {
        margin-bottom: var(--spacing-md);
    }
    
    .download-description-content ul,
    .download-description-content ol {
        margin-bottom: var(--spacing-md);
        padding-left: var(--spacing-lg);
    }
    
    .download-description-content li {
        margin-bottom: var(--spacing-xs);
    }
    
    /* 内容亮点区域 */
    .highlights-section {
        margin-bottom: var(--spacing-2xl);
    }
    
    .highlights-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }
    
    .highlight-item {
        display: flex;
        align-items: flex-start;
        gap: var(--spacing-md);
        padding: var(--spacing-lg);
        background: var(--color-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--color-border);
        transition: transform var(--animation-speed-normal) ease, box-shadow var(--animation-speed-normal) ease;
    }
    
    .highlight-item:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: var(--color-primary);
    }
    
    .highlight-icon {
        width: 48px;
        height: 48px;
        border-radius: var(--radius-lg);
        background: rgba(26, 86, 219, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--color-primary);
        font-size: var(--font-size-xl);
        flex-shrink: 0;
    }
    
    .highlight-content h4 {
        font-size: var(--font-size-md);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        margin-bottom: var(--spacing-xs);
    }
    
    .highlight-content p {
        color: var(--color-muted);
        font-size: var(--font-size-sm);
        line-height: 1.5;
    }
    
    /* 预览区域 */
    .preview-section {
        margin-bottom: var(--spacing-2xl);
    }
    
    .preview-container {
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        margin-top: var(--spacing-lg);
    }
    
    .preview-header {
        background: var(--color-card-bg);
        padding: var(--spacing-md) var(--spacing-lg);
        border-bottom: 1px solid var(--color-border);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .preview-title {
        font-size: var(--font-size-md);
        font-weight: var(--font-weight-medium);
        color: var(--color-text);
    }
    
    .preview-actions {
        display: flex;
        gap: var(--spacing-sm);
    }
    
    .preview-body {
        height: 500px;
        background: white;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
    }
    
    .pdf-preview-placeholder {
        text-align: center;
        padding: var(--spacing-xl);
        color: var(--color-muted);
    }
    
    .pdf-preview-placeholder i {
        font-size: 4rem;
        color: var(--color-primary);
        margin-bottom: var(--spacing-lg);
        opacity: 0.7;
    }
    
    .pdf-preview-placeholder h3 {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-sm);
        color: var(--color-text);
    }
    
    .pdf-preview-placeholder p {
        margin-bottom: var(--spacing-lg);
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
    
    /* 相关下载区域 */
    .related-downloads-section {
        margin-bottom: var(--spacing-2xl);
    }
    
    .related-downloads-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }
    
    .related-download-card {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-lg);
        border: 1px solid var(--color-border);
        transition: all var(--animation-speed-normal) ease;
    }
    
    .related-download-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: var(--color-primary);
    }
    
    .related-download-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: var(--spacing-md);
    }
    
    .related-download-title {
        font-size: var(--font-size-md);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        line-height: 1.4;
    }
    
    .related-download-title a {
        color: inherit;
        text-decoration: none;
        transition: color var(--animation-speed-fast);
    }
    
    .related-download-title a:hover {
        color: var(--color-primary);
    }
    
    .related-file-badge {
        display: flex;
        align-items: center;
        gap: 4px;
        background: rgba(0, 0, 0, 0.05);
        color: var(--color-muted);
        padding: 4px 8px;
        border-radius: 12px;
        font-size: var(--font-size-xs);
        font-weight: var(--font-weight-medium);
        flex-shrink: 0;
    }
    
    .related-download-meta {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-md);
        border-top: 1px solid var(--color-border);
    }
    
    .related-download-size {
        font-size: var(--font-size-sm);
        color: var(--color-muted);
    }
    
    .btn-related-download {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: transparent;
        color: var(--color-primary);
        padding: 6px 12px;
        border-radius: var(--radius-sm);
        font-weight: var(--font-weight-medium);
        text-decoration: none;
        transition: all var(--animation-speed-fast) ease;
        border: 1px solid var(--color-border);
        font-size: var(--font-size-sm);
    }
    
    .btn-related-download:hover {
        background: rgba(26, 86, 219, 0.1);
        border-color: var(--color-primary);
    }
    
    /* 页面底部行动号召 */
    .cta-section {
        background: linear-gradient(135deg, #1a56db 0%, #3b82f6 100%);
        border-radius: var(--radius-xl);
        padding: var(--spacing-3xl) var(--spacing-2xl);
        text-align: center;
        color: white;
        margin-bottom: var(--spacing-3xl);
    }
    
    .cta-title {
        font-size: 1.8rem;
        font-weight: var(--font-weight-bold);
        margin-bottom: var(--spacing-md);
    }
    
    .cta-description {
        font-size: var(--font-size-lg);
        opacity: 0.9;
        margin-bottom: var(--spacing-xl);
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
        line-height: 1.6;
    }
    
    .cta-buttons {
        display: flex;
        gap: var(--spacing-md);
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .btn-cta-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: white;
        color: var(--color-primary);
        padding: 14px 28px;
        border-radius: var(--radius-md);
        font-weight: var(--font-weight-semibold);
        text-decoration: none;
        transition: all var(--animation-speed-normal) ease;
        border: 2px solid white;
        font-size: var(--font-size-md);
    }
    
    .btn-cta-primary:hover {
        background: rgba(255, 255, 255, 0.9);
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }
    
    .btn-cta-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        color: white;
        padding: 14px 28px;
        border-radius: var(--radius-md);
        font-weight: var(--font-weight-semibold);
        text-decoration: none;
        transition: all var(--animation-speed-normal) ease;
        border: 2px solid rgba(255, 255, 255, 0.3);
        font-size: var(--font-size-md);
    }
    
    .btn-cta-secondary:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: white;
        transform: translateY(-2px);
    }
    
    /* ===== 右侧侧边栏样式 ===== */
    .sidebar-card {
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        padding: var(--spacing-xl);
        border: 1px solid var(--color-border);
        margin-bottom: var(--spacing-xl);
        transition: transform var(--animation-speed-normal) ease;
    }
    
    .sidebar-card:hover {
        transform: translateY(-2px);
    }
    
    .company-card {
        border-top: 4px solid var(--color-primary);
    }
    
    .company-card h3 {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-md);
        color: var(--color-text);
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .company-card h3 i {
        color: var(--color-primary);
        font-size: 20px;
    }
    
    .company-description {
        color: var(--color-muted);
        line-height: 1.6;
        margin-bottom: var(--spacing-lg);
        font-size: var(--font-size-md);
    }
    
    .company-features {
        list-style: none;
        margin-bottom: var(--spacing-lg);
    }
    
    .company-features li {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
        color: var(--color-text);
        font-size: var(--font-size-sm);
    }
    
    .company-features li i {
        color: var(--color-primary);
        font-size: 12px;
        flex-shrink: 0;
    }
    
    .company-links {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .company-link {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        color: var(--color-primary);
        text-decoration: none;
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--radius-md);
        transition: all var(--animation-speed-fast) ease;
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
    }
    
    .company-link:hover {
        background: rgba(26, 86, 219, 0.1);
        transform: translateX(4px);
    }
    
    .company-link i {
        font-size: 14px;
        transition: transform var(--animation-speed-fast) ease;
    }
    
    .company-link:hover i {
        transform: translateX(2px);
    }
    
    /* 技术咨询卡片 */
    .support-card {
        border-top: 4px solid #10b981;
    }
    
    .support-card h3 {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-md);
        color: var(--color-text);
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .support-card h3 i {
        color: #10b981;
        font-size: 20px;
    }
    
    .support-description {
        color: var(--color-muted);
        line-height: 1.6;
        margin-bottom: var(--spacing-lg);
        font-size: var(--font-size-md);
    }
    
    .support-contact {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    
    .support-contact-item {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        color: var(--color-text);
        font-size: var(--font-size-sm);
    }
    
    .support-contact-item i {
        color: var(--color-primary);
        font-size: 16px;
        width: 20px;
        flex-shrink: 0;
    }
    
    .btn-support {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: #10b981;
        color: white;
        padding: 12px 24px;
        border-radius: var(--radius-md);
        font-weight: var(--font-weight-medium);
        text-decoration: none;
        transition: all var(--animation-speed-normal) ease;
        border: 2px solid #10b981;
        font-size: var(--font-size-md);
        width: 100%;
        justify-content: center;
    }
    
    .btn-support:hover {
        background: #059669;
        border-color: #059669;
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }
    
    
    /* 分享功能样式 */
    .share-section {
        margin-top: var(--spacing-xl);
        padding-top: var(--spacing-xl);
        border-top: 1px solid var(--color-border);
    }
    
    .share-title {
        font-size: var(--font-size-md);
        font-weight: var(--font-weight-medium);
        color: var(--color-text);
        margin-bottom: var(--spacing-md);
    }
    
    .share-buttons {
        display: flex;
        gap: var(--spacing-sm);
        flex-wrap: wrap;
    }
    
    .share-btn {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 8px 16px;
        border-radius: var(--radius-md);
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
        text-decoration: none;
        transition: all var(--animation-speed-fast) ease;
        border: 1px solid var(--color-border);
        background: var(--color-bg);
        color: var(--color-text);
    }
    
    .share-btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-sm);
    }
    
    .share-btn.email {
        border-color: #ea4335;
        color: #ea4335;
    }
    
    .share-btn.email:hover {
        background: rgba(234, 67, 53, 0.1);
    }
    
    .share-btn.linkedin {
        border-color: #0a66c2;
        color: #0a66c2;
    }
    
    .share-btn.linkedin:hover {
        background: rgba(10, 102, 194, 0.1);
    }
    
    .share-btn.twitter {
        border-color: #1da1f2;
        color: #1da1f2;
    }
    
    .share-btn.twitter:hover {
        background: rgba(29, 161, 242, 0.1);
    }
    
    .share-btn.copy {
        border-color: var(--color-primary);
        color: var(--color-primary);
    }
    
    .share-btn.copy:hover {
        background: rgba(26, 86, 219, 0.1);
    }
    
    /* ===== 响应式设计 ===== */
    @media (max-width: 1024px) {
        .main-content-container {
            gap: var(--spacing-xl);
        }
        
        .content-left {
            flex: 6;
        }
        
        .content-right {
            flex: 4;
        }
    }
    
    @media (max-width: 768px) {
        .page-banner {
            height: 200px;
        }
        
        .banner-content h1 {
            font-size: 1.6rem;
        }
        
        .main-content-container {
            flex-direction: column;
        }
        
        .download-header {
            flex-direction: column;
            align-items: flex-start;
            gap: var(--spacing-lg);
        }
        
        .download-actions {
            margin-left: 0;
            width: 100%;
            justify-content: flex-start;
        }
        
        .btn-download-primary,
        .btn-preview-secondary {
            flex: 1;
            justify-content: center;
        }
        
        .file-info-grid {
            grid-template-columns: 1fr;
        }
        
        .highlights-grid {
            grid-template-columns: 1fr;
        }
        
        .related-downloads-grid {
            grid-template-columns: 1fr;
        }
        
        .preview-body {
            height: 300px;
        }
        
        .cta-section {
            padding: var(--spacing-2xl) var(--spacing-lg);
        }
        
        .cta-title {
            font-size: 1.5rem;
        }
        
        .cta-buttons {
            flex-direction: column;
            align-items: stretch;
        }
        
        .share-buttons {
            justify-content: center;
        }
    }
    
    @media (max-width: 480px) {
        .page-banner {
            height: 180px;
        }
        
        .banner-content h1 {
            font-size: 1.4rem;
        }
        
        .download-detail {
            padding: var(--spacing-lg);
        }
        
        .download-title {
            font-size: 1.4rem;
        }
        
        .btn-download-primary,
        .btn-preview-secondary {
            padding: 10px 16px;
            font-size: var(--font-size-sm);
        }
        
        .file-info-card {
            padding: var(--spacing-lg);
        }
        
        .section-title {
            font-size: var(--font-size-lg);
        }
        
        .cta-title {
            font-size: 1.3rem;
        }
        
        .btn-cta-primary,
        .btn-cta-secondary {
            padding: 12px 20px;
            font-size: var(--font-size-sm);
        }
        
        .sidebar-card {
            padding: var(--spacing-lg);
        }
        
        .share-buttons {
            flex-direction: column;
        }
        
        .share-btn {
            justify-content: center;
        }
    }
    
    /* ===== 动画效果 ===== */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .fade-in-up {
        animation: fadeInUp 0.5s ease forwards;
    }
    
    .download-detail {
        animation: fadeInUp 0.6s ease 0.2s forwards;
        opacity: 0;
    }
    
    .sidebar-card {
        animation: fadeInUp 0.6s ease 0.3s forwards;
        opacity: 0;
    }
    
/* 预览区域高亮效果 */
.preview-highlight {
    animation: previewPulse 1.5s ease;
}

@keyframes previewPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(26, 86, 219, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(26, 86, 219, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(26, 86, 219, 0);
    }
}

.preview-section {
    scroll-margin-top: 20px; /* 避免被固定导航栏遮挡 */
}

/* 预览区域自适应样式 */
.preview-section {
    width: 100%;
}

.preview-container {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.preview-header {
    background: var(--color-card-bg);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.preview-title {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    word-break: break-word;
}

.preview-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.preview-body {
    position: relative;
    width: 100%;
    height: 600px; /* 默认高度 */
    background: #f5f5f5;
    overflow: hidden;
}

/* 移动端自适应 */
@media (max-width: 768px) {
    .preview-body {
        height: 400px; /* 移动端降低高度 */
    }
    
    .preview-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .preview-actions {
        width: 100%;
    }
    
    .preview-actions button {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .preview-body {
        height: 300px; /* 小屏幕更低 */
    }
}

/* 全屏模式样式 */
.preview-body:fullscreen,
.preview-body:-webkit-full-screen,
.preview-body:-moz-full-screen,
.preview-body:-ms-fullscreen {
    background: white;
    padding: 20px;
}

.preview-body:fullscreen object,
.preview-body:-webkit-full-screen object,
.preview-body:-moz-full-screen object,
.preview-body:-ms-fullscreen object {
    width: 100%;
    height: 100%;
}

/* 在 download.css 中添加 WhatsApp 按钮样式 */
.share-btn.whatsapp {
    border-color: #25D366;
    color: #25D366;
}

.share-btn.whatsapp:hover {
    background: rgba(37, 211, 102, 0.1);
}