body {
            overflow: hidden;
            width: 100vw;
            height: 100vh;
            background-color: #000;
            color: #fff;
            -webkit-tap-highlight-color: transparent;
            -webkit-touch-callout: none;
            -webkit-user-select: none;
            user-select: none;
        }
        
        /* 视频遮罩层 */
        #video-mask {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: #000;
            z-index: 1000;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        #video-background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* 加载动画 */
        .loader {
        width: 80px;
        height: 50px;
        position: relative;
        }

        .loader-text {
        position: absolute;
        top: 0;
        padding: 0;
        margin: 0;
        color: #C8B6FF;
        animation: text_713 3.5s ease both infinite;
        font-size: .8rem;
        letter-spacing: 1px;
        }

        .load {
        background-color: #9A79FF;
        border-radius: 50px;
        display: block;
        height: 16px;
        width: 16px;
        bottom: 0;
        position: absolute;
        transform: translateX(64px);
        animation: loading_713 3.5s ease both infinite;
        }

        .load::before {
        position: absolute;
        content: "";
        width: 100%;
        height: 100%;
        background-color: #D1C2FF;
        border-radius: inherit;
        animation: loading2_713 3.5s ease both infinite;
        }

        @keyframes text_713 {
        0% {
            letter-spacing: 1px;
            transform: translateX(0px);
        }

        40% {
            letter-spacing: 2px;
            transform: translateX(26px);
        }

        80% {
            letter-spacing: 1px;
            transform: translateX(32px);
        }

        90% {
            letter-spacing: 2px;
            transform: translateX(0px);
        }

        100% {
            letter-spacing: 1px;
            transform: translateX(0px);
        }
        }

        @keyframes loading_713 {
        0% {
            width: 16px;
            transform: translateX(0px);
        }

        40% {
            width: 100%;
            transform: translateX(0px);
        }

        80% {
            width: 16px;
            transform: translateX(64px);
        }

        90% {
            width: 100%;
            transform: translateX(0px);
        }

        100% {
            width: 16px;
            transform: translateX(0px);
        }
        }

        @keyframes loading2_713 {
        0% {
            transform: translateX(0px);
            width: 16px;
        }

        40% {
            transform: translateX(0%);
            width: 80%;
        }

        80% {
            width: 100%;
            transform: translateX(0px);
        }

        90% {
            width: 80%;
            transform: translateX(15px);
        }

        100% {
            transform: translateX(0px);
            width: 16px;
        }
        }

        /* 主内容 */
        #main-content {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease;
            z-index: 500;
        }
        
        /* 品牌名称 */
        #brand-name {
            position: absolute;
            top: 5%;
            left: 50%;
            transform: translateX(-50%);
            color: #fff;
            font-size: 24px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 5px;
            text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
            z-index: 700;
            opacity: 0;
            transition: opacity 1s ease 0.5s;
            text-align: center;
            width: 90%;
        }
        
        /* 宣传语区域 */
        #slogan-section {
            position: absolute;
            top: 30%;
            left: 8%;
            width: 25%;
            opacity: 0;
            z-index: 700;
            transition: opacity 1s ease 1s;
        }
        
        .slogan {
            color: #fff;
            font-size: 42px;
            font-weight: bold;
            text-transform: uppercase;
            margin-bottom: 20px;
            text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
            line-height: 1.1;
        }
        
        .description {
            color: #aaa;
            font-size: 16px;
            line-height: 1.6;
        }
        
        /* 中心按钮 */
        #center-button {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: linear-gradient(135deg, #473776, #8d76d2);
            box-shadow: 0 0 40px rgba(102, 62, 103, 0.8), 
                        0 0 80px rgba(83, 41, 79, 0.5),
                        inset 0 5px 20px rgba(255, 255, 255, 0.2);
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            z-index: 600;
            transition: all 0.3s ease;
            animation: pulse 2s infinite;
            touch-action: manipulation;
        }
        
        #center-button:hover, #center-button:active {
            transform: translate(-50%, -50%) scale(1.1);
            box-shadow: 0 0 50px rgba(102, 62, 103, 0.8), 
                        0 0 100px rgba(83, 41, 79, 0.5);
        }
        
        #center-button span {
            color: #fff;
            font-size: 18px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }
        
        @keyframes pulse {
            0% { box-shadow: 0 0 40px rgba(102, 62, 103, 0.8), 0 0 80px rgba(83, 41, 79, 0.5); }
            50% { box-shadow: 0 0 60px rgba(102, 62, 103, 1), 0 0 120px rgba(83, 41, 79, 0.8); }
            100% { box-shadow: 0 0 40px rgba(102, 62, 103, 0.8), 0 0 80px rgba(83, 41, 79, 0.5); }
        }
        
        /* 控制按钮 */
        .controls {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 900;
            display: flex;
            gap: 15px;
            opacity: 0;
            transition: opacity 1s ease 1.5s;
        }
        
        .control-btn {
            padding: 12px 24px;
            background: rgba(0, 170, 255, 0.2);
            border: 1px solid rgba(0, 170, 255, 0.5);
            color: #00aaff;
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 14px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            pointer-events: auto;
            touch-action: manipulation;
            white-space: nowrap;
        }
        
        .control-btn:hover, .control-btn:active {
            background: rgba(0, 170, 255, 0.4);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        
        /* 粒子容器 */
        #particle-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 400;
        }
        
        /* 响应式调整 - 优化移动端 */
        @media (max-width: 1024px) {
            .slogan {
                font-size: 32px;
            }
            
            #brand-name {
                font-size: 36px;
            }
            
            #slogan-section {
                width: 35%;
            }
        }
        
        @media (max-width: 768px) {
            #slogan-section {
                width: 90%;
                left: 5%;
                top: 20%;
                text-align: center;
            }
            
            .slogan {
                font-size: 28px;
                margin-bottom: 15px;
            }
            
            .description {
                font-size: 14px;
                line-height: 1.5;
            }
            
            #brand-name {
                font-size: 20px;
                top: 10%;
                letter-spacing: 3px;
            }
            
            #center-button {
                width: 80px;
                height: 80px;
            }
            
            #center-button span {
                font-size: 16px;
            }
            
            .controls {
                bottom: 20px;
                right: 50%;
                transform: translateX(50%);
                flex-wrap: wrap;
                justify-content: center;
                gap: 10px;
            }
            
            .control-btn {
                padding: 10px 20px;
                font-size: 12px;
                flex: 0 0 auto;
            }
        }
        
        @media (max-width: 480px) {
            #slogan-section {
                top: 15%;
            }
            
            .slogan {
                font-size: 24px;
            }
            
            .description {
                font-size: 13px;
            }
            
            #brand-name {
                font-size: 18px;
                top: 8%;
            }
            
            #center-button {
                width: 70px;
                height: 70px;
            }
            
            #center-button span {
                font-size: 14px;
            }
            
            .controls {
                bottom: 15px;
                gap: 8px;
            }
            
            .control-btn {
                padding: 8px 16px;
                font-size: 11px;
            }
        }
        
        /* 横屏模式优化 */
        @media (max-height: 500px) and (orientation: landscape) {
            #slogan-section {
                top: 10%;
                width: 40%;
            }
            
            .slogan {
                font-size: 20px;
            }
            
            .description {
                font-size: 12px;
            }
            
            #brand-name {
                font-size: 16px;
                top: 5%;
            }
            
            #center-button {
                width: 60px;
                height: 60px;
            }
            
            #center-button span {
                font-size: 12px;
            }
            
            .controls {
                bottom: 10px;
            }