* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: url(bg.png) left top no-repeat;
            background-size:cover;
            animation: gradientBG 15s ease infinite;
            padding: 20px;
            color: white;
        }
        
        
        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        .container {
            width: 100%;
			           	margin-top:80px;

            max-width: 600px;
            
        }
        

        .header {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        
        .header i {
            color: #2f77ed;
            font-size: 2.5rem;
            filter: drop-shadow(0 0 8px rgba(76, 209, 55, 0.7));
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }
        
        .subtitle {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-top: 10px;
        }
        
        .form-container {
            margin-bottom: 100px;
        }
        
        .form-group {
            margin-bottom: 25px;
        }
        
        .form-group label {
            min-height:10px;
            display:inline-block;
            font-size: 1.1rem;
            font-weight: 500;
			width:20%;
			text-align:right;
			
        }
        #spa3{letter-spacing:6px;}
        .form-group input {
            display:inline-block;
            padding: 5px 20px;
            border-radius:3;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background-color: white;
            color: #333;
            font-size: 1.1rem;
			outline:none;
            transition: all 0.3s ease;
			width: 70%;
        }
        
        .form-group input:focus {
            outline: none;
        }
        
        .form-group input.valid {
            border-color: #4cd137;
        }
        
        .form-group input.invalid {
            border-color: #e74c3c;
        }
        
        .form-group .hint {
            font-size: 0.9rem;
            opacity: 0.8;
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .form-group .hint i {
            color: #f1c40f;
        }
        
        .btn-verify {
            width: 70%;
			display:inline-block;
            padding: 10px 18px;
            background: #2c70ff;
            border: none;
			font-weight:normal;
            border-radius: 3px;
            color: white;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;

        }
        
        .btn-verify:hover {
            background: linear-gradient(to right, #44bd32, #3fa02d);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 0, 0, 0.2);
        }
        
        .btn-verify:active {
            transform: translateY(0);
        }
        
       
        
        .info-box {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 3px;
            padding: 25px;
        }
        
        .info-box h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .info-box h3 i {
            color: #f1c40f;
        }
        
        .info-box ol {
            padding-left: 20px;
            margin-bottom: 15px;
        }
        
        .info-box li {
            margin-bottom: 10px;
            line-height: 1.5;
        }
        
        .info-box .note {
            color: #f1c40f;
        }
		.info-box .notea {
            color: #ccc;
        }
        
        .error-message {
            color: #e74c3c;
            padding: 12px 15px;
            border-radius: 8px;
            margin-top: 20px;
            display: none;
            align-items: center;
            gap: 10px;
        }
        
        .success-message {
            color: #2ecc71;
            background: rgba(46, 204, 113, 0.1);
            padding: 12px 15px;
            border-radius: 8px;
            margin-top: 20px;
            display: none;
            align-items: center;
            gap: 10px;
            border-left: 3px solid #2ecc71;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .container {
                padding: 30px 20px;
            }
            
            .header h1 {
                font-size: 2rem;
                flex-direction: column;
                gap: 10px;
            }
            
            .header i {
                font-size: 2.5rem;
            }
            
            .form-container {
                padding: 20px;
            }
            
            .form-group input {
                padding: 12px 15px;
                font-size: 1rem;
            }
            
            .btn-verify {
                padding: 15px;
                font-size: 1.1rem;
            }
        }
        
        @media (max-width: 480px) {
            .header h1 {
                font-size: 1.7rem;
            }
            
            .header i {
                font-size: 2rem;
            }
            
            .container {
                padding: 25px 15px;
            }
            
            .form-container {
                padding: 15px 0px;
            }
            .form-group label{width:30%;}
            .form-group input{width:100%;margin-top:10px;}
        }