* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
        }
        
        .header {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .logo {
            font-size: 36px;
            font-weight: bold;
            color: white;
            margin-bottom: 10px;
        }
        
        .slogan {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
        }
        
        .download-buttons {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .download-btn {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 25px;
            padding: 10px 20px;
            margin: 0 10px;
            color: white;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .download-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }
        
        .download-btn i {
            margin-right: 8px;
            font-size: 20px;
        }
        
        .login-container {
            background: white;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            max-width: 400px;
            margin: 0 auto;
        }
        
        .login-header {
            background: #f8f9fa;
            padding: 30px;
            text-align: center;
            border-bottom: 1px solid #eee;
        }
        
        .login-title {
            font-size: 24px;
            color: #333;
            margin-bottom: 5px;
        }
        
        .login-subtitle {
            font-size: 14px;
            color: #666;
        }
        
        .login-form {
            padding: 30px;
        }
        
        .register-link {
            text-align: center;
            margin: 20px 0;
        }
        
        .register-btn {
            display: inline-flex;
            align-items: center;
            color: #1e9fff;
            text-decoration: none;
            font-weight: bold;
        }
        
        .register-btn i {
            margin-left: 5px;
            transition: transform 0.3s;
        }
        
        .register-btn:hover i {
            transform: translateX(5px);
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: bold;
        }
        
        .input-with-icon {
            position: relative;
        }
        
        .input-with-icon i {
            position: absolute;
            left: 10px;
            top: 50%;
            transform: translateY(-50%);
            color: #999;
        }
        
        .input-with-icon input {
            padding-left: 40px;
            width: 100%;
        }
        
        .forgot-password {
            text-align: right;
            margin-top: 5px;
        }
        
        .forgot-password a {
            color: #666;
            font-size: 12px;
            text-decoration: none;
        }
        
        .forgot-password a:hover {
            color: #1e9fff;
        }
        
        .login-btn {
            width: 100%;
            height: 50px;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .login-btn i {
            margin-left: 5px;
        }
        
        .divider {
            text-align: center;
            margin: 30px 0;
            position: relative;
        }
        
        .divider:before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            width: 100%;
            height: 1px;
            background: #eee;
        }
        
        .divider span {
            background: white;
            padding: 0 20px;
            color: #666;
            position: relative;
        }
        
        .register-section {
            text-align: center;
        }
        
        .register-section-btn {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .register-section-btn i {
            margin-right: 5px;
        }
        
        .footer {
            text-align: center;
            margin-top: 30px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .download-btn {
                margin: 5px;
                width: 200px;
                justify-content: center;
            }
            
            .login-container {
                max-width: 100%;
            }
        }