/* * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
         */
        
    
        
        /* 背景图片 */
        .background-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/global/index2026_xnbg2.jpg');
            /* background-size: cover; */
            background-position: 50% 0;
            background-repeat: no-repeat;
            z-index: 0;
        }
        
        /* 背景遮罩，增强烟花可见性 - 设置为完全透明 */
        .background-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            /* 完全透明，不遮挡背景图片 */
            background: rgba(0, 0, 0, 0);
            z-index: 1;
        }
        
        /* 烟花画布 */
        #fireworksCanvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 2;
            pointer-events: none;
        }
        
        /* 控制面板 */
        .controls {
            position: absolute;
            bottom: 20px;
            right: 20px;
            display: flex;
            gap: 10px;
            z-index: 4;
        }
        
        /* .btn {
            padding: 0.6rem 1.2rem;
            border-radius: 50px;
            border: none;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.25);
        } */
        
        /* 提示文字 */
        .hint {
            position: absolute;
            bottom: 20px;
            left: 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8rem;
            background: rgba(0, 0, 0, 0.3);
            padding: 8px 12px;
            border-radius: 20px;
            backdrop-filter: blur(5px);
            z-index: 4;
        }
        
        /* 容器标题 */
          .container-title {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            text-align: center;
            z-index: 3;
            /* font-size: 2rem;
            color: #ffcc00;
            text-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
            font-weight: bold; */
        }
        
        /* 拖尾强度指示器 */
        .trail-indicator {
            position: absolute;
            top: 20px;
            right: 20px;
            background: rgba(0, 0, 0, 0.5);
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            z-index: 4;
            backdrop-filter: blur(5px);
        }
        
        /* 线条效果指示器 */
        .line-effect-indicator {
            position: absolute;
            top: 50px;
            right: 20px;
            background: rgba(0, 0, 0, 0.5);
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            z-index: 4;
            backdrop-filter: blur(5px);
        }
        
        /* 响应式设计 */
        @media (max-width: 1100px) {
            .chunjie_tk {
                width: 800px;
                height: 450px;
            }
        }
        
        @media (max-width: 850px) {
            .chunjie_tk {
                width: 600px;
                height: 338px;
            }
            
            .controls {
                bottom: 10px;
                right: 10px;
                gap: 5px;
            }
            
            .btn {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }
            
            .hint {
                font-size: 0.7rem;
                padding: 6px 10px;
                bottom: 10px;
                left: 10px;
            }
            
            .trail-indicator, .line-effect-indicator {
                top: 10px;
                right: 10px;
                font-size: 0.7rem;
            }
            
            .line-effect-indicator {
                top: 40px;
            }
        }
        
        @media (max-width: 650px) {
            .chunjie_tk {
                width: 400px;
                height: 225px;
            }
            
            .hint {
                display: none;
            }
            
            .line-effect-indicator {
                display: none;
            }
        }