/* =========== Schematics页面专用样式 =========== */

/* 页面头部 */
.page-header {
    text-align: center;
    margin: 10px 0;
    padding: 12px 15px;
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.page-title {
    font-size: 1.8rem;
    color: var(--color-text);
    margin-bottom: 5px;
    font-weight: 700;
}

.page-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin: 0;
}

/* 搜索区域 */
.search-section {
    margin: 10px 0;
}

.search-container {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 300px;
    display: flex;
    position: relative;
}

.search-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition-fast);
    background: var(--color-bg-card);
    color: var(--color-text);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.search-btn {
    position: absolute;
    right: var(--spacing-xs);
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-btn:hover {
    background: var(--color-primary-dark);
}

.filter-container {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    color: var(--color-text);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.sort-select {
    border-color: #ff9800;
    background-color: #fff8e1;
}

.sort-select:focus {
    border-color: #f57c00;
}

/* 统计区域 */
.stats-section {
    margin: 10px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    border: 1px solid var(--color-border);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.stat-icon {
    font-size: 1.3rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 50%;
}

.stat-info {
    flex: 1;
}

.stat-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 2px;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* 视图切换按钮 */
.view-toggle {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.view-btn {
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 1rem;
}

.view-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.view-btn:hover {
    border-color: var(--color-primary);
}

/* =========== 蓝图卡片样式（简化版） =========== */

.schematics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

/* 列表视图样式 */
.schematics-grid.list-view {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.schematics-grid.list-view .schematic-card {
    display: flex;
    flex-direction: row;
    max-width: none;
    align-items: stretch;
}

.schematics-grid.list-view .schematic-card:hover {
    transform: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.schematics-grid.list-view .schematic-image {
    width: 140px;
    height: 100px;
    flex-shrink: 0;
    border-radius: 0;
}

.schematics-grid.list-view .schematic-info {
    flex: 1;
    padding: 12px 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.schematics-grid.list-view .schematic-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text);
}

.schematics-grid.list-view .schematic-meta {
    font-size: 0.8rem;
    color: var(--color-text-light);
    display: flex;
    gap: 15px;
}

.schematics-grid.list-view .schematic-desc {
    display: none;
}

.schematic-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.schematic-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
    border-color: var(--color-primary);
}

/* 卡片图片区域 - 更大 */
.schematic-card .schematic-image {
    width: 100%;
    height: 120px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.schematic-card .schematic-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

.schematic-card:hover .schematic-image img {
    transform: scale(1.1);
}

/* 官方认证标识 */
.schematic-card .featured-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    color: #333;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(255, 193, 7, 0.4);
}

/* 卡片内容区域 - 简化 */
.schematic-card .schematic-content {
    padding: var(--spacing-md);
}

/* 卡片标题 */
.schematic-card .schematic-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 卡片元信息行 */
.schematic-card .schematic-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

/* 分类标签 */
.schematic-card .schematic-category {
    background: var(--color-primary);
    color: white;
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* 下载量 */
.schematic-card .schematic-stats {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.schematic-card .schematic-stats span {
    display: flex;
    align-items: center;
    gap: 2px;
}

/* 作者信息 */
.schematic-card .schematic-author {
    font-size: 0.85rem;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 悬停时显示的描述 */
.schematic-card .schematic-description-hover {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 40px 15px 15px;
    font-size: 0.85rem;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    pointer-events: none;
}

.schematic-card:hover .schematic-description-hover {
    opacity: 1;
    transform: translateY(0);
}

/* 星标认证蓝图样式 */
.featured-card {
    border: 2px solid #ffc107 !important;
    box-shadow: 0 0 20px rgba(255, 193, 7, 0.3) !important;
}

.featured-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ffc107, #ff9800, #ffc107);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    z-index: 1;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* =========== 蓝图详情模态框 =========== */

.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s ease;
    overflow-y: auto;
}

.modal-content {
    background: var(--color-bg-card);
    margin: 5% auto;
    padding: 0;
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 620px;
    position: relative;
    animation: slideUp 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
    transition: var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 10;
}

.close-modal:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: rotate(90deg);
}

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

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 详情内容布局 - 上下排布 */
.schematic-detail {
    display: flex;
    flex-direction: column;
    min-height: auto;
}

/* 左侧图片区域 */
.schematic-detail-image {
    position: relative;
    width: 100%;
    height: 190px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.schematic-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.schematic-detail-image .image-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    opacity: 0.3;
}

/* 右侧信息区域 */
.schematic-detail-info {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
}

/* 详情标题 */
.schematic-detail-info .detail-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.schematic-detail-info .detail-title .featured-icon {
    color: #ffc107;
    font-size: 1.2rem;
}

/* 详情描述 */
.schematic-detail-info .detail-description {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

/* 信息卡片网格 - 3列 */
.detail-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.info-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.info-card .info-icon {
    font-size: 1.2rem;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(76, 175, 80, 0.1);
    border-radius: var(--radius-sm);
}

.info-card .info-content {
    flex: 1;
}

.info-card .info-label {
    font-size: 0.72rem;
    color: var(--color-text-light);
    margin-bottom: 1px;
}

.info-card .info-value {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
}

/* 方块统计区域 */
.block-stats {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.block-stats-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.block-stats-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.block-tag {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    gap: 3px;
}

.block-tag .block-name {
    font-weight: 500;
}

.block-tag .block-count {
    background: var(--color-primary);
    color: white;
    padding: 1px 5px;
    border-radius: 8px;
    font-size: 0.65rem;
}

.block-more-btn {
    background: transparent;
    border: 1px dashed var(--color-border);
    color: var(--color-text-light);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.block-more-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* 操作按钮区域 */
.detail-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
    padding-top: var(--spacing-sm);
}

.detail-actions button {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.detail-actions .download-btn {
    background: var(--color-primary);
    color: white;
}

.detail-actions .download-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.detail-actions .share-btn {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.detail-actions .share-btn:hover {
    background: var(--color-primary);
    color: white;
}

/* 分享成功提示 */
.share-toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.9rem;
    z-index: 10001;
    animation: toastIn 0.3s ease;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* =========== 上传模态框 =========== */

.upload-modal {
    max-width: 550px;
}

.upload-modal .modal-content {
    padding: 0;
    border-radius: 16px;
    overflow: hidden;
}

.upload-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2e7d32 100%);
    color: white;
    padding: 25px 30px;
    text-align: center;
}

.upload-header .upload-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.upload-header .upload-subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 5px;
}

.upload-form {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9rem;
}

.form-group label .required {
    color: #e53935;
}

.form-input,
.form-textarea,
.form-select {
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    background: #fafafa;
    color: var(--color-text);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #9e9e9e;
}

.form-file {
    padding: 20px;
    border: 2px dashed #bdbdbd;
    border-radius: 10px;
    background: #fafafa;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.form-file:hover {
    border-color: var(--color-primary);
    background: rgba(76, 175, 80, 0.05);
}

.form-file::file-selector-button {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    margin-right: 10px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.form-file::file-selector-button:hover {
    background: var(--color-primary-dark);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 10px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.cancel-btn,
.submit-btn {
    padding: 12px 28px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cancel-btn {
    background: #f5f5f5;
    color: #757575;
}

.cancel-btn:hover {
    background: #e0e0e0;
}

.submit-btn {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2e7d32 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(76, 175, 80, 0.4);
}

.upload-modal .close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.2rem;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    z-index: 10;
}

.upload-modal .close-modal:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* =========== 加载更多 =========== */

.load-more-section {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.load-more-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0 auto;
}

.load-more-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.loading-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* =========== 响应式设计 =========== */

@media (max-width: 767px) {
    .page-title {
        font-size: 1.5rem;
    }

    .search-container {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        min-width: auto;
    }

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

    .view-toggle {
        justify-content: center;
        margin-top: var(--spacing-sm);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .schematics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .schematic-card .schematic-image {
        height: 120px;
    }

    .schematic-card .schematic-title {
        font-size: 0.95rem;
    }

    .schematic-detail {
        flex-direction: column;
    }

    .schematic-detail-image {
        height: 120px;
    }
    
    .detail-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .detail-info-grid {
        grid-template-columns: 1fr;
    }

    .detail-actions {
        flex-direction: column;
    }

    .modal-content {
        margin: 5% auto;
        width: 95%;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions button {
        width: 100%;
    }
}

/* =========== 蓝图预览模态框 =========== */

.preview-modal-content {
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.preview-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.preview-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-controls button {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.preview-controls button:hover {
    background: #e0e0e0;
}

.zoom-level {
    font-size: 0.85rem;
    color: #666;
    min-width: 50px;
    text-align: center;
}

.preview-container {
    flex: 1;
    overflow: hidden;
    background: #2a2a2a;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    max-height: calc(90vh - 150px);
    cursor: grab;
    position: relative;
}

.preview-container:active {
    cursor: grabbing;
}

.preview-image-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.1s ease;
    user-select: none;
}

.preview-loading,
.preview-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #888;
    gap: 15px;
}

.preview-loading .loading-spinner {
    font-size: 2rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.preview-error .error-icon {
    font-size: 2rem;
}

.preview-hint {
    padding: 10px 20px;
    background: #f9f9f9;
    border-top: 1px solid #eee;
    font-size: 0.85rem;
    color: #666;
    text-align: center;
}

/* 预览按钮样式 */
.detail-actions .preview-btn {
    background: #2196f3;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-actions .preview-btn:hover {
    background: #1976d2;
    transform: translateY(-2px);
}

/* 3D预览模态框样式 */
.preview-3d-modal-content {
    max-width: 95vw;
    max-height: 95vh;
    width: 1000px;
    height: 85vh;
    display: flex;
    flex-direction: column;
}

.preview-3d-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid #eee;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    flex-shrink: 0;
}

.preview-3d-header h3 {
    margin: 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-3d-controls {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.preview-3d-controls button {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    color: white;
}

.preview-3d-controls button:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.preview-3d-controls button.active {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.preview-3d-controls .view-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.preview-3d-controls .view-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.preview-3d-container {
    flex: 1;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    min-height: 400px;
    position: relative;
    overflow: hidden;
}

.preview-3d-container canvas {
    display: block;
    cursor: grab;
}

.preview-3d-container canvas:active {
    cursor: grabbing;
}

.preview-info {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    backdrop-filter: blur(4px);
}

.preview-3d-hint {
    padding: 10px 20px;
    background: #f9f9f9;
    border-top: 1px solid #eee;
    font-size: 0.85rem;
    color: #666;
    text-align: center;
    flex-shrink: 0;
}

/* 3D预览按钮样式 */
.detail-actions .preview-3d-btn {
    background: #9c27b0;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-actions .preview-3d-btn:hover {
    background: #7b1fa2;
    transform: translateY(-2px);
}

@media (min-width: 768px) and (max-width: 1023px) {
    .schematics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) and (max-width: 1439px) {
    .schematics-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1440px) {
    .schematics-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}