/* 通用横幅 */
        .general-banner {
            position: relative;
            width: 100%;
            height: 220px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 95px;
        }

        .general-banner-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
            z-index: 0;
        }

        .general-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1;
        }

        .general-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            padding: 0 20px;
        }

        .general-banner-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }

        .general-banner-description {
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
            text-shadow: 0 1px 2px rgba(0,0,0,0.3);
        }

        @media screen and (max-width: 992px) {
            .general-banner { margin-top: 70px; height: 180px; }
            .general-banner-title { font-size: 2rem; }
        }

        @media screen and (max-width: 768px) {
            .general-banner { margin-top: 60px; height: 150px; }
            .general-banner-title { font-size: 1.5rem; }
            .general-banner-description { font-size: 0.9rem; }        
        }
        /* ========== 视频中心模块样式 ========== */
        .video-center-section {
            max-width: 1380px;
            margin: 40px auto;
            padding: 0 28px;
            position: relative;
        }

        /* 分类按钮 (PC) */
        .product-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
            align-items: center;
            justify-content: flex-start;
        }

        .category-btn {
            background: #ffffff;
            border: 1px solid #d6d0c9;
            padding: 10px 26px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            color: #3f3a35;
            cursor: pointer;
            transition: all 0.25s ease;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.02);
        }

        .category-btn:hover {
            border-color: #F05D0D;
            color: #F05D0D;
            background: #fff8f4;
        }

        .category-btn.active {
            background: #F05D0D;
            border-color: #F05D0D;
            color: #fff;
            box-shadow: 0 6px 14px rgba(240,93,13,0.25);
        }

        /* 分类下拉 (移动端) */
        .category-select-wrapper {
            display: none;
            margin-bottom: 30px;
        }

        .category-select {
            width: 100%;
            padding: 14px 20px;
            border-radius: 40px;
            border: 1px solid #d6d0c9;
            background: #fff;
            font-size: 1rem;
            font-weight: 500;
            color: #3f3a35;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%233f3a35' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 20px center;
            cursor: pointer;
            outline: none;
        }

        /* 视频网格容器 */
        .video-grid-wrapper {
            position: relative;
            min-height: 300px;
            margin-bottom: 40px;
        }

        /* 视频卡片网格 */
        .video-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            transition: opacity 0.3s ease;
        }

        .video-grid.loading {
            opacity: 0;
            pointer-events: none;
        }

        /* 产品视频卡片 */
        .video-card {
            background: #ffffff;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.06);
            transition: transform 0.3s, box-shadow 0.3s;
            padding: 24px;
            border: 1px solid #eae5df;
            animation: fadeInUp 0.5s ease forwards;
            opacity: 0;
        }

        .video-card.hidden {
            display: none;
        }

        .video-card.show {
            animation: fadeInUp 0.5s ease forwards;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .video-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.1);
            border-color: #d6cbc0;
        }

        /* 卡片上半部分：左右布局 */
        .video-card-top {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 24px;
            margin-bottom: 20px;
        }

        /* 左侧：产品图片+型号 */
        .video-card-left {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }

        .video-card-image {
            width: 100%;
            max-width: 220px;
            aspect-ratio: 1 / 1;
            border-radius: 8px;
            overflow: hidden;
            background: #f4f2ef;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .video-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.4s;
        }

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

        .model-link-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            cursor: pointer;
        }

        .video-card-model {
            font-weight: 700;
            font-size: 1.2rem;
            color: #1f1d1b;
            text-align: center;
            transition: color 0.3s;
            letter-spacing: 0.3px;
        }

        .model-arrow {
            font-size: 1.3rem;
            color: #F05D0D;
            transition: transform 0.3s;
            display: inline-block;
        }

        .model-link-wrapper:hover .video-card-model {
            color: #F05D0D;
        }

        .model-link-wrapper:hover .model-arrow {
            animation: arrowMove 0.6s ease-in-out infinite;
        }

        @keyframes arrowMove {
            0%, 100% { transform: translateX(0); }
            50% { transform: translateX(6px); }
        }

        /* 右侧：二维码+观看提示 */
        .video-card-right {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }

        .qr-code-wrapper {
            width: 100%;
            max-width: 220px;
            aspect-ratio: 1 / 1;
            background: #f9f7f5;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #eae5df;
            padding: 15px;
        }

        .qr-code-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .watch-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1rem;
            font-weight: 600;
            color: #3f3a35;
            background: #f4f2ef;
            padding: 10px 20px;
            border-radius: 30px;
            transition: background 0.2s, color 0.2s;
            text-decoration: none;
            cursor: pointer;
        }

        .watch-link svg {
            width: 20px;
            height: 20px;
            fill: #FF0000;
        }

        .watch-link:hover {
            background: #F05D0D;
            color: #fff;
        }

        .watch-link:hover svg {
            fill: #ffffff;
        }

        /* 卡片底部：Lock Type提示 */
        .video-card-bottom {
            border-top: 1px solid #eae5df;
            padding-top: 14px;
            text-align: center;
        }

        .lock-type {
            font-size: 0.9rem;
            color: #6b635b;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        /* Loading遮罩层 */
        .loading-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: none;
            align-items: center;
            justify-content: center;
            background: rgba(244, 242, 239, 0.8);
            z-index: 10;
            border-radius: 8px;
        }

        .loading-overlay.active {
            display: flex;
        }

        .loading-spinner {
            width: 50px;
            height: 50px;
            border: 3px solid #f3f3f3;
            border-top: 3px solid #F05D0D;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .loading-text {
            margin-top: 15px;
            color: #6b635b;
            font-size: 1rem;
            font-weight: 500;
            text-align: center;
        }

        /* 分页按钮样式 */
        .product-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 20px;
        }

        .pagination-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #e5e0da;
            background: #fff;
            color: #3f3a35;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .pagination-btn:hover {
            border-color: #F05D0D;
            color: #F05D0D;
        }

        .pagination-btn.active {
            background: #F05D0D;
            border-color: #F05D0D;
            color: #fff;
        }

        .pagination-btn.disabled {
            opacity: 0.5;
            pointer-events: none;
        }
        /*响应式*/
        @media screen and (max-width: 768px) {
            .product-categories {
                display: none;
            }
            .category-select-wrapper {
                display: block;
            }

            .video-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .video-card {
                padding: 20px;
            }

            .video-card-top {
                gap: 16px;
            }

            .video-card-image {
                max-width: 160px;
            }

            .qr-code-wrapper {
                max-width: 160px;
                padding: 12px;
            }

            .video-card-model {
                font-size: 1.1rem;
            }

            .pagination-btn {
                width: 35px;
                height: 35px;
                font-size: 0.9rem;
            }
        }
        @media screen and (max-width: 480px) {
            .video-card {
                padding: 16px;
            }

            .video-card-top {
                gap: 12px;
            }

            .video-card-image {
                max-width: 130px;
            }

            .qr-code-wrapper {
                max-width: 130px;
                padding: 10px;
            }

            .video-card-model {
                font-size: 1rem;
            }

            .model-arrow {
                font-size: 1.1rem;
            }

            .watch-link {
                font-size: 0.9rem;
                padding: 8px 16px;
            }

            .lock-type {
                font-size: 0.85rem;
            }
        }