* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        a {
text-decoration: none;
color: white;
}

        body {
            background: linear-gradient(135deg, #0c0e1d, #171a3a, #1c2142);
            color: #fff;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            position: relative;
        }

        .spider-web {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0.08;
            z-index: 1;
            background-image: 
                radial-gradient(circle at center, rgba(80, 200, 240, 0.1) 0%, transparent 70%),
                linear-gradient(0deg, transparent 49%, rgba(80, 200, 240, 0.1) 50%, transparent 51%),
                linear-gradient(30deg, transparent 49%, rgba(80, 200, 240, 0.1) 50%, transparent 51%),
                linear-gradient(60deg, transparent 49%, rgba(80, 200, 240, 0.1) 50%, transparent 51%),
                linear-gradient(90deg, transparent 49%, rgba(80, 200, 240, 0.1) 50%, transparent 51%),
                linear-gradient(120deg, transparent 49%, rgba(80, 200, 240, 0.1) 50%, transparent 51%),
                linear-gradient(150deg, transparent 49%, rgba(80, 200, 240, 0.1) 50%, transparent 51%);
            background-size: 100% 100%;
        }

        .spider {
            position: absolute;
            z-index: 2;
            top: 10%;
            right: 10%;
            width: 50px;
            height: 50px;
            animation: spiderMove 20s linear infinite;
        }
        
        .spider .body {
            width: 20px;
            height: 20px;
            background: #222;
            border-radius: 50%;
            position: absolute;
            top: 15px;
            left: 15px;
            box-shadow: 0 0 15px rgba(80, 200, 240, 0.5);
        }
        
        .spider .head {
            width: 12px;
            height: 12px;
            background: #111;
            border-radius: 50%;
            position: absolute;
            top: 8px;
            left: 19px;
        }
        
        .spider .leg {
            position: absolute;
            background: #333;
            height: 2px;
            border-radius: 2px;
            transform-origin: left center;
        }
        
        .spider .leg-1 { top: 15px; left: 20px; width: 18px; transform: rotate(30deg); }
        .spider .leg-2 { top: 19px; left: 20px; width: 22px; transform: rotate(10deg); }
        .spider .leg-3 { top: 23px; left: 20px; width: 22px; transform: rotate(-10deg); }
        .spider .leg-4 { top: 27px; left: 20px; width: 18px; transform: rotate(-30deg); }
        .spider .leg-5 { top: 15px; left: 15px; width: 18px; transform: rotate(150deg); }
        .spider .leg-6 { top: 19px; left: 11px; width: 22px; transform: rotate(170deg); }
        .spider .leg-7 { top: 23px; left: 11px; width: 22px; transform: rotate(190deg); }
        .spider .leg-8 { top: 27px; left: 15px; width: 18px; transform: rotate(210deg); }
        
        @keyframes spiderMove {
            0% { transform: translate(0, 0) rotate(0deg); }
            25% { transform: translate(-100px, 80px) rotate(90deg); }
            50% { transform: translate(-200px, 30px) rotate(180deg); }
            75% { transform: translate(-100px, 120px) rotate(270deg); }
            100% { transform: translate(0, 0) rotate(360deg); }
        }

        .container {
            position: relative;
            z-index: 3;
            width: 100%;
            max-width: 500px;
            padding: 0 20px;
        }
        
        .login-card {
            background: rgba(15, 18, 40, 0.85);
            border-radius: 20px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(80, 200, 240, 0.3);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
            padding: 45px 40px;
            position: relative;
            overflow: hidden;
            transform: translateY(0);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .login-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
        }
        
        .login-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(
                transparent, 
                rgba(80, 200, 240, 0.4),
                transparent 30%
            );
            animation: rotate 8s linear infinite;
            z-index: -1;
        }
        
        .login-card::after {
            content: '';
            position: absolute;
            inset: 4px;
            background: rgba(15, 18, 40, 0.95);
            border-radius: 16px;
            z-index: -1;
        }

        .logo {
            text-align: center;
            margin-bottom: 35px;
        }
        
        .logo h1 {
            font-size: 2.8rem;
            font-weight: 700;
            background: linear-gradient(45deg, #50c8f0, #50f0a0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .logo h1::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 70px;
            height: 4px;
            background: linear-gradient(90deg, #50c8f0, #50f0a0);
            border-radius: 2px;
        }
        
        .logo p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            margin-top: 10px;
            letter-spacing: 0.5px;
        }

        .input-group {
            margin-bottom: 25px;
            position: relative;
        }
        
        .input-group label {
            display: block;
            margin-bottom: 8px;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            font-size: 1.05rem;
        }
        
        .input-group .input-container {
            position: relative;
        }
        
        .input-group input {
            width: 100%;
            padding: 15px 20px 15px 50px;
            background: rgba(25, 30, 60, 0.7);
            border: 1px solid rgba(80, 200, 240, 0.4);
            border-radius: 12px;
            color: #fff;
            font-size: 1.1rem;
            transition: all 0.3s ease;
        }
        
        .input-group input:focus {
            outline: none;
            border-color: #50c8f0;
            box-shadow: 0 0 15px rgba(80, 200, 240, 0.4);
        }
        
        .input-group .input-icon {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: #50c8f0;
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }
        
        .input-group input:focus ~ .input-icon {
            color: #50f0a0;
            text-shadow: 0 0 10px rgba(80, 240, 160, 0.8);
        }

        .login-btn {
            width: 100%;
            padding: 16px;
            background: linear-gradient(45deg, #50c8f0, #50f0a0);
            border: none;
            border-radius: 12px;
            color: #0c0e1d;
            font-size: 1.2rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 1px;
            text-transform: uppercase;
            position: relative;
            overflow: hidden;
            margin-top: 10px;
        }
        
        .login-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: 0.5s;
        }
        
        .login-btn:hover {
            background: linear-gradient(45deg, #50f0a0, #50c8f0);
            box-shadow: 0 0 20px rgba(80, 240, 160, 0.6);
            transform: translateY(-2px);
        }
        
        .login-btn:hover::before {
            left: 100%;
        }
        
        .login-btn.loading {
            background: linear-gradient(45deg, #50c8f0, #50c8f0);
            cursor: not-allowed;
        }
        
        .login-btn.loading::before {
            display: none;
        }

        .footer {
            text-align: center;
            margin-top: 30px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.95rem;
        }
        
        .security-info {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 15px;
        }
        
        .security-item {
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .security-item i {
            color: #50f0a0;
        }
        
        /* 动画效果 */
        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        @media (max-width: 480px) {
            .login-card {
                padding: 35px 25px;
            }
            
            .logo h1 {
                font-size: 2.2rem;
            }
            
            .input-group input {
                padding: 14px 15px 14px 45px;
            }
            
            .input-group .input-icon {
                left: 15px;
            }
            
            .spider {
                display: none;
            }
            
            .taobao-links {
                flex-direction: column;
                align-items: center;
            }
        }

        .custom-alert {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
            min-width: 300px;
            border-radius: 12px;
            padding: 20px;
            background: rgba(25, 30, 60, 0.95);
            border: 1px solid rgba(255, 92, 92, 0.5);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            transform: translateX(120%);
            transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            align-items: flex-start;
        }
        
        .custom-alert.show {
            transform: translateX(0);
        }
        
        .alert-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 92, 92, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .alert-icon i {
            color: #ff6b6b;
            font-size: 22px;
        }
        
        .alert-content {
            flex-grow: 1;
        }
        
        .alert-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 5px;
            color: #fff;
        }
        
        .alert-message {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.5;
        }
        
        .alert-close {
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            font-size: 1.2rem;
            margin-left: 10px;
            transition: color 0.3s ease;
        }
        
        .alert-close:hover {
            color: #fff;
        }

        .particle {
            position: absolute;
            z-index: 2;
            background: #50c8f0;
            border-radius: 50%;
            pointer-events: none;
        }
        
        .security-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: rgba(80, 240, 160, 0.2);
            color: #50f0a0;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 5px;
            border: 1px solid rgba(80, 240, 160, 0.3);
        }
        
        .activation-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: rgba(240, 180, 80, 0.2);
            color: #f0b450;
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 5px;
            border: 1px solid rgba(240, 180, 80, 0.3);
        }
        
        .lockout-info {
            text-align: center;
            margin-top: 15px;
            color: #ff6b6b;
            font-size: 0.9rem;
        }
        
        .purchase-section {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .purchase-section h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #50f0a0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        
        .purchase-section p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .taobao-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 15px;
        }
        
        .taobao-link {
            display: flex;
            align-items: center;
            text-decoration: none;
            background: linear-gradient(45deg, #ff6a00, #ff4000);
            color: white;
            padding: 12px 20px;
            border-radius: 10px;
            font-weight: 600;
            box-shadow: 0 5px 15px rgba(255, 106, 0, 0.3);
            transition: all 0.3s ease;
        }
        
        .taobao-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 106, 0, 0.5);
            background: linear-gradient(45deg, #ff4000, #ff6a00);
        }
        
        .taobao-link i {
            margin-right: 8px;
            font-size: 1.2rem;
        }