@keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0; }
        }
        
        html {
            touch-action: manipulation;
            -ms-touch-action: manipulation;
        }
        
        body {
            overflow-x: hidden;
            max-width: 100vw;
            position: relative;
        }
        
        /* 禁用文本选择 */
        * {
            -webkit-touch-callout: none;
            -webkit-user-select: none;
            -khtml-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }
        
        .tutorial-title {
            text-align: center;
            font-size: 18px;
            font-weight: bold;
            margin: 0 0 20px 0;
            background: #000;
            color: #fff;
            padding: 12px;
            border-radius: 20px 20px 0 0;
            width: 100%;
        }
        
        .tutorial-container {
            padding: 0;
            max-width: 100%;
            margin: 20px auto;
        }
        
        .tutorial-steps {
            padding: 20px 15px;
            background: #fff;
            border-radius: 12px;
            margin: 0;
            width: 100%;
        }
        
        .step {
            margin-bottom: 30px;
            background: #f8f9fa;
            border-radius: 12px;
            padding: 20px;
            display: block;
            position: relative;
        }
        
        .step-header {
            display: block;
            margin-bottom: 15px;
            text-align: center;
            position: relative;
            padding-left: 0;
            min-height: 35px;
        }
        
        .step-number {
            width: 35px;
            height: 35px;
            background: #000;
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
        }
        
        .step-content {
            width: 100%;
            text-align: center;
            padding: 0 20px;
        }
        
        .step-content h3 {
            color: #000;
            font-size: 17px;
            margin: 0;
            padding: 0;
            line-height: 35px;
            font-weight: bold;
            text-align: center;
            display: inline-block;
        }
        
        .step-text {
            color: #666;
            line-height: 1.6;
            font-size: 16px;
            margin: 15px auto;
            padding: 0;
            text-align: center;
            max-width: 80%;
        }
        
        .highlight {
            color: #ff0000;
            font-weight: bold;
            margin-top: 8px;
            font-size: 19px;
        }
        
        .step-images {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 20px;
            width: 100%;
        }
        
        .phone-frame {
            width: 300px;
            height: 640px;
            background: #ffffff;
            border-radius: 55px;
            padding: 10px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.12);
            position: relative;
            border: 3px solid #1d1d1f;
            margin: 0 5px 20px;
            background: linear-gradient(to bottom, #1d1d1f, #2d2d2f);
        }
        
        .phone-frame::before {
            content: '';
            position: absolute;
            width: 130px;
            height: 25px;
            background: #000;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            border-bottom-left-radius: 20px;
            border-bottom-right-radius: 20px;
            z-index: 2;
        }
        
        .phone-frame::after {
            content: '';
            position: absolute;
            left: -3px;
            top: 120px;
            width: 3px;
            height: 80px;
            background: #1d1d1f;
            border-top-left-radius: 2px;
            border-bottom-left-radius: 2px;
        }
        
        .phone-frame .power-button {
            content: '';
            position: absolute;
            right: -3px;
            top: 120px;
            width: 3px;
            height: 40px;
            background: #1d1d1f;
            border-top-right-radius: 2px;
            border-bottom-right-radius: 2px;
        }
        
        .phone-screen {
            background: #fff;
            height: 100%;
            width: 100%;
            border-radius: 45px;
            overflow: hidden;
            position: relative;
        }
        
        .screen-image {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
            padding: 5px;
        }
        
        .app-interface {
            padding: 15px;
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .search-input {
            background: #ff3b30;
            color: #fff;
            padding: 15px 25px;
            border-radius: 8px;
            text-align: center;
            font-size: 22px;
            font-weight: bold;
            width: 280px;
            display: inline-block;
            box-shadow: 0 2px 5px rgba(255, 59, 48, 0.3);
        }
        
        .input-line {
            line-height: 1.4;
        }
        
        .input-line:first-child {
            margin-bottom: 5px;
            font-size: 22px;
        }
        
        .server-id {
            display: block;
            color: #ff0000;
            margin-bottom: 10px;
            font-weight: bold;
        }
        
        @media screen and (max-width: 768px) {
            .container {
                padding: 0 10px;
            }
            
            .step {
                padding: 15px;
            }
            
            .step-header {
                gap: 12px;
            }
            
            .step-text {
                padding-left: 0;
            }
            
            .step-content h3 {
                font-size: 16px;
            }
            
            .phone-frame {
                width: 220px;
                height: 460px;
                border-radius: 40px;
                border-width: 2.5px;
                padding: 8px;
            }
            
            .phone-frame::before {
                width: 90px;
                height: 20px;
                border-bottom-left-radius: 15px;
                border-bottom-right-radius: 15px;
            }
            
            .phone-screen {
                border-radius: 35px;
            }
            
            .step-header {
                padding-left: 20px;
            }
            
            .step-content {
                padding-left: 70px;
                padding-right: 15px;
            }
            
            .step-number {
                left: 15px;
            }
            
            .step-content {
                padding: 0 15px;
            }
            
            .step-text {
                max-width: 90%;
            }
            
            .screen-image {
                padding: 3px;
            }
            
            .search-input-container {
                padding: 8px;
            }
            
            .search-input {
                padding: 12px 20px;
                font-size: 22px;
                width: 220px;
            }
            .input-line:first-child {
                font-size: 22px;
            }
            .logo-container h1 {
                font-size: 26px;
            }
            .highlight {
                font-size: 18px;
            }
        }
        @media screen and (min-width: 375px) and (max-width: 767px) {
            .phone-frame {
                width: 230px;
                height: 480px;
            }
            .step-images {
                padding: 0 20px;
            }
        }
        @media screen and (min-width: 768px) {
            .phone-frame {
                min-height: 420px;
            }
            .tutorial-container {
                max-width: 800px;
                margin: 30px auto;
            }
        }
        @media screen and (max-width: 359px) {
            .step-images {
                gap: 8px;
            }
            .phone-frame {
                width: 200px;
                height: 420px;
                border-width: 2px;
            }
            .phone-frame::before {
                width: 85px;
                height: 19px;
            }
            .step-content h3 {
                font-size: 15px;
            }
            .step-text {
                font-size: 13px;
            }
            .step-header {
                padding-left: 15px;
            }
            .step-content {
                padding-left: 50px;
            }
        }
        .app-interface.search-screen {
            position: relative;
            width: 100%;
            height: 100%;
            display: block;
        }
        .search-input-container {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 2;
            width: auto;
            text-align: center;
            background: rgba(255, 255, 255, 0.9);
            padding: 10px;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        .logo-container h1 {
            font-size: 28px;
            font-weight: bold;
            margin-top: 15px;
            color: #333;
        }
        .server-info {
            font-size: 24px;
            color: #ff3b30;
            font-weight: bold;
            margin-top: 10px;
            text-align: center;
        }
        @media screen and (max-width: 768px) {
            .logo-container h1 {
                font-size: 26px;
            }
            .server-info {
                font-size: 22px;
                margin-top: 8px;
            }
        }
		
		.hero-section:nth-child(3) #typed-text-3 {
			color: #2196F3;
		}
		.typing-wrapper {
			font-size: 20px;
			min-height: 26px;
		}
		@media (max-width: 768px) {
			.typing-wrapper {
				font-size: 16px;
				min-height: 26px;
			}
		}