* { box-sizing: border-box; }
        body { font-family: system-ui, sans-serif; background: #f5f5f5; margin: 0; padding: 16px; }
        .container { max-width: 500px; margin: 0 auto; }

        /* 顶部导航 */
        .nav-buttons {
            display: flex;
            gap: 8px;
            justify-content: center;
            margin: 16px 0 20px;
            flex-wrap: wrap;
        }
        .nav-btn {
            padding: 10px 18px;
            border-radius: 40px;
            text-decoration: none;
            color: white;
            font-weight: 500;
            font-size: 15px;
            background: #007aff;
        }
        .nav-btn.home { background: #6c757d; }
        .nav-btn.self { background: #007aff; }
        .nav-btn.express { background: #28a745; }

        /* 搜索卡片 */
        .search-card {
            background: white;
            border-radius: 30px;
            padding: 24px;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .form-group { margin-bottom: 16px; }
        label { display: block; margin-bottom: 8px; color: #666; font-weight: 500; }
        input[type="tel"] {
            width: 100%;
            padding: 16px;
            border: 1px solid #ddd;
            border-radius: 50px;
            font-size: 16px;
            background: #fafafa;
        }
        .search-btn {
            width: 100%;
            padding: 16px;
            background: #007aff;
            color: white;
            border: none;
            border-radius: 50px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
        }

        /* Tab 栏 */
        .tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin: 20px 0 16px;
            background: white;
            padding: 12px;
            border-radius: 50px;
            justify-content: center;
        }
        .tab {
            padding: 8px 8px;
            border-radius: 40px;
            text-decoration: none;
            color: #555;
            font-weight: 500;
            font-size: 14px;
            background: #f0f0f0;
            transition: all 0.2s;
        }
        .tab.active {
            background: #007aff;
            color: white;
        }
        .tab.completed {
            background: #28a745;
            color: white;
        }

        /* 订单卡片 */
        .order-card {
            background: white;
            border-radius: 24px;
            padding: 18px;
            margin-bottom: 16px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
            border: 1px solid #eee;
        }
        .order-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            font-size: 14px;
            color: #888;
        }
        .order-id { font-weight: 600; color: #333; }
        .order-type {
            background: #e9ecef;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
        }
        .product-info {
            background: #f8f8f8;
            border-radius: 16px;
            padding: 12px;
            margin-bottom: 12px;
            font-size: 15px;
            word-break: break-word;
        }
        .product-label { color: #007aff; font-weight: 500; margin-right: 6px; }
        .detail-row {
            display: flex;
            margin-bottom: 8px;
            font-size: 14px;
        }
        .detail-label {
            width: 75px;
            color: #666;
            flex-shrink: 0;
        }
        .detail-value {
            flex: 1;
            color: #1a1a1a;
            word-break: break-word;
        }
        .status-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 500;
            color: white;
            margin-right: 6px;
        }
        .paid-badge { background: #28a745; }
        .unpaid-badge { background: #dc3545; }
        .tracking-link {
            color: #007aff;
            text-decoration: none;
            font-weight: 500;
        }
        .empty-msg {
            text-align: center;
            color: #999;
            padding: 40px 0;
            background: white;
            border-radius: 24px;
        }
        /* 核销码按钮 */
        .qrcode-btn {
            background: #17a2b8;
            color: white;
            padding: 4px 12px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 12px;
            white-space: nowrap;
            display: inline-block;
        }
        .qrcode-btn:hover {
            opacity: 0.8;
        }