/* 移动端优化 */
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #f5f5f5;
            -webkit-tap-highlight-color: transparent;
        }

        /* 隐藏滚动条 */
        .hide-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .hide-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .filter-dropdown-scroll {
            scrollbar-width: thin;
            scrollbar-color: #fed7aa transparent;
        }

        .filter-dropdown-scroll::-webkit-scrollbar {
            width: 4px;
        }

        .filter-dropdown-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        .filter-dropdown-scroll::-webkit-scrollbar-thumb {
            background: #fed7aa;
            border-radius: 999px;
        }

        .filter-dropdown-scroll::-webkit-scrollbar-thumb:hover {
            background: #fb923c;
        }

        /* 卡片样式 */
        .recipe-card {
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .recipe-card:active {
            transform: scale(0.98);
        }

        /* 图片加载占位 */
        .img-placeholder {
            background: linear-gradient(135deg, #e0e0e0 0%, #f0f0f0 100%);
        }

        /* 底部导航 */
        .bottom-nav {
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        /* 加载动画 */
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

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

        /* 步骤数字 */
        .step-number {
            width: 24px;
            height: 24px;
            line-height: 24px;
            text-align: center;
            border-radius: 50%;
            font-size: 12px;
            font-weight: bold;
        }

        /* 标签样式 */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 8px;
            border-radius: 12px;
            font-size: 11px;
            margin-right: 4px;
        }

        /* 滑入动画 */
        @keyframes slideIn {
            from {
                transform: translateX(100%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        .slide-in {
            animation: slideIn 0.3s ease-out;
        }

        /* 图片轮播 */
        .carousel {
            scroll-snap-type: x mandatory;
        }

        .carousel-item {
            scroll-snap-align: start;
        }