/* --- 1. 基础设置 --- */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: "Microsoft YaHei", "Heiti SC", sans-serif;
            user-select: none; 
        }

        body {
            background-color: #000;
            background-image: url('../images1/bg.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            background-attachment: fixed;
            color: white;
            min-height: 100vh;
            padding: 10px;
            padding-bottom: 80px;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.1);
            z-index: -1;
        }

        /* 主内容容器 */
        .main-container {
            display: flex;
            max-width: 1200px;
            margin: 0 auto;
            gap: 20px;
            position: relative;
            justify-content: center;
        }

        /* 左侧规则区域 */
        .left-rules-section {
            width: 280px;
            flex-shrink: 0;
            background: rgba(20, 0, 0, 0.8);
            border: 1px dashed #440000;
            padding: 15px;
            border-radius: 4px;
            margin-top: 20px;
            position: sticky;
            top: 110px;
            height: fit-content;
            max-height: calc(100vh - 60px);
            overflow-y: auto;
            box-shadow: 0 0 20px rgba(150, 0, 0, 0.3);
        }

        .rules-title {
            color: #ff3333;
            font-size: 18px;
            font-weight: bold;
            margin-bottom: 15px;
            text-align: center;
            border-bottom: 2px solid #330000;
            padding-bottom: 8px;
        }

        .rules-content {
            font-size: 14px;
            color: #ccc;
            line-height: 1.6;
        }

        .rules-content p {
            margin-bottom: 12px;
            text-align: justify;
        }

        .highlight-gold {
            color: #ffcc00;
            font-weight: bold;
        }
        
        .rules-note {
            margin-top: 15px;
            padding: 10px;
            background: rgba(255, 204, 0, 0.1);
            border: 1px solid rgba(255, 204, 0, 0.3);
            color: #ffddaa;
            font-size: 13px;
            text-align: center;
            border-radius: 4px;
            line-height: 1.5;
        }

        /* 右侧游戏区域 */
        .game-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            max-width: 800px;
            margin: 0 auto;
        }

        /* 顶部标题 - 移动到游戏区域内并居中 */
        .header {
            margin: 10px 0 20px 0;
            text-align: center;
            width: 100%;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }
        
        h1 {
            font-style: italic;
            color: #fff;
            text-shadow: 0 0 10px #ff0000;
            font-size: 32px;
            margin-bottom: 5px;
            letter-spacing: 2px;
            text-align: center;
        }
        
        .subtitle {
            color: #cc0000;
            font-size: 12px;
            letter-spacing: 5px;
            font-weight: bold;
            text-align: center;
        }

        /* --- 2. 玩法按钮区域 --- */
        .controls-area {
            width: 100%;
            max-width: 720px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 15px;
            padding: 10px;
            background: rgba(20, 0, 0, 0.5);
            border: 1px solid #330000;
            margin-bottom: 20px;
        }

        .mode-btn {
            background: linear-gradient(90deg, #2b0000, #1a0000);
            border: 1px solid #550000;
            padding: 12px 10px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s;
        }

        .txt-left { font-size: 16px; font-weight: bold; color: #fff; text-shadow: 0 0 2px #000; }
        .txt-price { font-size: 14px; color: #ffcccc; margin-left: 5px; }
        .txt-right { font-size: 14px; display: flex; align-items: center; }
        .txt-bao { color: #ffffff; font-size: 12px; margin-right: 5px; font-weight: bold;}
        .txt-val { color: #fff; font-weight: 900; font-size: 16px; background: #cc0000; padding: 0 4px; border-radius: 2px; }

        .mode-btn:hover { border-color: #ff4444; background: #330000; }
        .mode-btn.active {
            background: linear-gradient(90deg, #990000, #550000);
            border: 1px solid #ffaaaa;
            box-shadow: 0 0 15px rgba(255, 0, 0, 0.5);
            transform: scale(1.02);
            z-index: 2;
        }
        .mode-btn.active .txt-price { color: #fff; }
        .mode-btn.active .txt-val { background: #fff; color: #cc0000; }

        /* --- 3. 9x9 物品网格 --- */
        .grid-wrapper {
            width: 100%;
            max-width: 720px;
            margin-bottom: 20px;
            border: 2px solid #330000;
            padding: 3px;
            background: #110000;
            box-shadow: 0 0 20px rgba(150, 0, 0, 0.2);
        }

        .grid-container {
            display: grid;
            grid-template-columns: repeat(9, 1fr);
            grid-template-rows: repeat(9, 1fr);
            gap: 2px;
            width: 100%;
            aspect-ratio: 1 / 1;
        }

        .cell {
            background-color: #0a0a0a;
            border: 1px solid #440000;
            position: relative;
            cursor: pointer;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .cell img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 1;
            display: block;
        }

        .cell span.fallback-num {
            position: absolute;
            color: #330;
            font-size: 12px;
            z-index: 1;
        }

        .cell.active {
            border: 2px solid #ff0000;
            box-shadow: 
                0 0 15px rgba(255, 0, 0, 0.8),
                0 0 30px rgba(255, 0, 0, 0.4) inset,
                0 0 10px rgba(255, 255, 255, 0.5);
            transform: scale(0.98);
            z-index: 5;
        }
        
        .cell {
            transition: all 0.3s ease;
        }

        .cell.active img {
            opacity: 1;
            filter: brightness(1.2) saturate(1.2);
        }

        /* 增强勾选标记 */
        .cell.active::after {
            content: "✓";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(1.5);
            color: #ff0000;
            font-size: 28px;
            font-weight: 900;
            text-shadow: 
                0 0 10px #ffffff,
                0 0 20px #ff0000,
                0 0 30px #ff0000;
            z-index: 10;
            animation: pulse 1s ease-in-out infinite alternate;
        }

        /* 添加脉动动画 */
        @keyframes pulse {
            0% {
                text-shadow: 
                    0 0 5px #ffffff,
                    0 0 10px #ff0000,
                    0 0 15px #ff0000;
                transform: translate(-50%, -50%) scale(1.5);
            }
            100% {
                text-shadow: 
                    0 0 15px #ffffff,
                    0 0 25px #ff0000,
                    0 0 35px #ff0000;
                transform: translate(-50%, -50%) scale(1.7);
            }
        }

        /* 悬停效果 */
        .cell:hover {
            border-color: #ff6666;
            box-shadow: 0 0 10px rgba(255, 102, 102, 0.5);
        }

        .cell:hover:not(.active) img {
            filter: brightness(1.1);
        }

        /* 点击瞬间的反馈 */
        .cell:active {
            transform: scale(0.95);
            transition: transform 0.1s ease;
        }

        /* 为选中的单元格添加光环效果 */
        .cell.active::before {
            content: '';
            position: absolute;
            top: -3px;
            left: -3px;
            right: -3px;
            bottom: -3px;
            border: 2px solid rgba(255, 255, 255, 0.8);
            border-radius: 2px;
            animation: glow 2s ease-in-out infinite;
            z-index: -1;
        }

        @keyframes glow {
            0%, 100% {
                box-shadow: 
                    0 0 5px rgba(255, 255, 255, 0.5),
                    0 0 10px rgba(255, 0, 0, 0.3);
            }
            50% {
                box-shadow: 
                    0 0 10px rgba(255, 255, 255, 0.8),
                    0 0 20px rgba(255, 0, 0, 0.6),
                    0 0 30px rgba(255, 0, 0, 0.3);
            }
        }

        /* 当连成线时的额外效果（可选） */
        .cell.winning {
            animation: winning-flash 0.5s ease-in-out 3;
        }

        @keyframes winning-flash {
            0%, 100% {
                box-shadow: 
                    0 0 15px rgba(255, 0, 0, 0.8),
                    0 0 30px rgba(255, 0, 0, 0.4) inset;
            }
            50% {
                box-shadow: 
                    0 0 25px rgba(255, 0, 0, 1),
                    0 0 50px rgba(255, 0, 0, 0.7) inset,
                    0 0 20px rgba(255, 255, 255, 0.8);
            }
        }

        /* --- 4. 底部操作栏 --- */
        .action-bar {
            width: 100%;
            max-width: 720px;
            margin-top: 10px;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            gap: 15px;
            margin-bottom: 20px;
        }
        
        .mini-tip { color: #666; font-size: 12px; margin-bottom: 5px; }

        #resetBtn {
            background: #cc0000;
            color: white;
            border: none;
            padding: 12px 60px;
            font-size: 18px;
            font-weight: bold;
            cursor: pointer;
            box-shadow: 0 0 10px #ff0000;
            border-radius: 2px;
            width: 100%;
            max-width: 300px;
        }
        #resetBtn:active { transform: scale(0.95); }

        .system-btns {
            display: flex;
            gap: 10px;
            width: 100%;
            justify-content: center;
            flex-wrap: wrap;
        }

        .sys-btn {
            background: #1a1a1a;
            border: 1px solid #444;
            color: #aaa;
            padding: 8px 15px;
            font-size: 14px;
            cursor: pointer;
            border-radius: 4px;
            transition: 0.2s;
        }
        .sys-btn:hover {
            color: #fff;
            border-color: #fff;
            background: #333;
        }
        .sys-btn.file-op {
            border-color: #550000;
            color: #d4a5a5;
        }
        .sys-btn.file-op:hover {
            background: #330000;
            color: #fff;
            border-color: #ff0000;
        }

        #fileInput { display: none; }

        /* --- 5. 弹窗 --- */
        #modal {
            display: none;
            position: fixed;
            top: 0; left: 0;
            width: 100%; height: 100%;
            background: rgba(0,0,0,0.9);
            justify-content: center;
            align-items: center;
            z-index: 9999;
        }
        .modal-box {
            background: #1a0000;
            border: 2px solid #ff0000;
            padding: 40px;
            text-align: center;
            box-shadow: 0 0 60px #ff0000;
            min-width: 320px;
        }
        .modal-text {
            color: #fff;
            font-size: 20px;
            margin-bottom: 30px;
            font-weight: bold;
            line-height: 1.5;
        }
        .modal-btn {
            background: #ff0000;
            color: white;
            border: none;
            padding: 10px 30px;
            font-size: 16px;
            cursor: pointer;
            font-weight: bold;
        }

        /* --- 6. 历史记录面板 --- */
        .history-panel {
            position: fixed;
            top: 50%;
            right: 0;
            transform: translateY(-50%);
            z-index: 1000;
            display: flex;
            align-items: center;
        }
        
        .history-toggle {
            background: linear-gradient(180deg, #8b0000, #550000);
            border: 1px solid #ff4444;
            border-right: none;
            color: #fff;
            padding: 15px 8px;
            font-size: 12px;
            cursor: pointer;
            border-radius: 8px 0 0 8px;
            writing-mode: vertical-rl;
            text-orientation: mixed;
            box-shadow: -2px 0 10px rgba(255, 0, 0, 0.3);
            transition: all 0.3s;
            position: relative;
        }
        
        .history-toggle:hover {
            background: linear-gradient(180deg, #aa0000, #770000);
            padding-left: 12px;
        }
        
        .history-toggle .badge {
            position: absolute;
            top: 5px;
            left: 50%;
            transform: translateX(-50%);
            background: #ff4444;
            color: #fff;
            font-size: 10px;
            padding: 2px 5px;
            border-radius: 10px;
            min-width: 18px;
            text-align: center;
            writing-mode: horizontal-tb;
        }
        
        .history-content {
            background: linear-gradient(180deg, #1a0000, #0d0000);
            border: 1px solid #550000;
            border-right: none;
            width: 0;
            max-height: 70vh;
            overflow: hidden;
            transition: width 0.3s ease;
            border-radius: 8px 0 0 8px;
            box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
        }
        
        .history-panel.open .history-content {
            width: 280px;
            overflow-y: auto;
        }
        
        .history-header {
            padding: 12px 15px;
            border-bottom: 1px solid #330000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(0, 0, 0, 0.3);
            position: sticky;
            top: 0;
            z-index: 1;
        }
        
        .history-header h3 {
            color: #ff6666;
            font-size: 14px;
            margin: 0;
        }
        
        .history-clear {
            background: transparent;
            border: 1px solid #550000;
            color: #aa6666;
            padding: 4px 10px;
            font-size: 11px;
            cursor: pointer;
            border-radius: 4px;
            transition: all 0.2s;
        }
        
        .history-clear:hover {
            background: #330000;
            color: #ff6666;
            border-color: #ff4444;
        }
        
        .history-list {
            padding: 10px;
        }
        
        .history-item {
            background: rgba(30, 0, 0, 0.5);
            border: 1px solid #330000;
            border-radius: 6px;
            padding: 10px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .history-item:hover {
            border-color: #ff4444;
            background: rgba(50, 0, 0, 0.5);
        }
        
        .history-item.active {
            border-color: #ff6666;
            background: rgba(80, 0, 0, 0.5);
            box-shadow: 0 0 10px rgba(255, 0, 0, 0.2);
        }
        
        .history-item .time {
            color: #888;
            font-size: 11px;
            margin-bottom: 5px;
        }
        
        .history-item .info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
        }
        
        .history-item .info span {
            color: #ccc;
            font-size: 12px;
        }
        
        .history-item .info .mode {
            background: #550000;
            padding: 2px 8px;
            border-radius: 3px;
            color: #ff9999;
        }
        
        .history-item .preview {
            display: grid;
            grid-template-columns: repeat(9, 1fr);
            gap: 1px;
            background: #220000;
            padding: 2px;
            border-radius: 3px;
        }
        
        .history-item .preview-cell {
            aspect-ratio: 1;
            background: #111;
            border-radius: 2px;
            overflow: hidden;
            position: relative;
        }
        
        .history-item .preview-cell img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        
        .history-item .preview-cell.marked {
            box-shadow: 0 0 0 2px #ff4444 inset;
        }
        
        .history-item .preview-cell.marked::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 68, 68, 0.4);
            pointer-events: none;
        }
        
        .history-empty {
            color: #666;
            text-align: center;
            padding: 30px 15px;
            font-size: 13px;
        }

        /* --- 7. 右下角标识 --- */
        .brand-info {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 100;
            text-align: right;
            background: rgba(0, 0, 0, 0.9);
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid rgba(255, 204, 0, 0.4);
            box-shadow: 0 4px 15px rgba(0,0,0,0.6);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            min-width: 180px;
        }

        .brand-info .highlight {
            color: #ffcc00;
            font-weight: bold;
            margin-left: 5px;
        }
        
        .brand-info .weapp-btn {
            margin-top: 10px;
            background: linear-gradient(135deg, #8b0000, #cc0000);
            color: #fff;
            border: 1px solid #ffcc00;
            padding: 8px 12px;
            font-size: 12px;
            cursor: pointer;
            border-radius: 4px;
            font-weight: bold;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: all 0.3s;
            width: 100%;
            text-decoration: none;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        }
        
        .brand-info .weapp-btn:hover {
            background: linear-gradient(135deg, #cc0000, #ff3333);
            border-color: #ffdd44;
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(255, 0, 0, 0.4);
        }
        
        .brand-info .weapp-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        }
        
        .brand-info .weapp-btn .weapp-icon {
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .main-container {
                flex-direction: column;
                max-width: 720px;
            }
            
            .left-rules-section {
                width: 100%;
                max-width: 720px;
                margin: 20px auto;
                position: relative;
                top: 0;
                order: 3;
            }
            
            .game-content {
                order: 2;
            }
        }
        
        @media (max-width: 768px) {
            .controls-area {
                grid-template-columns: 1fr;
            }
            
            .header h1 {
                font-size: 24px;
            }
            
            .rules-content {
                font-size: 13px;
            }
        }