* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 
                         'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .card {
            background: #fff;
            border-radius: 24px;
            padding: 40px 30px;
            text-align: center;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
            max-width: 380px;
            width: 100%;
            animation: slideUp 0.6s ease-out;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .avatar {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #07c160, #06ad56);
            border-radius: 50%;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
        }

        h1 {
            color: #333;
            font-size: 22px;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .subtitle {
            color: #999;
            font-size: 14px;
            margin-bottom: 30px;
        }

        .qrcode-container {
            background: #f8f9fa;
            border-radius: 16px;
            padding: 20px;
            margin-bottom: 25px;
        }

        .qrcode {
            width: 200px;
            height: 200px;
            margin: 0 auto;
            background: #e0e0e0;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #666;
            font-size: 14px;
        }

        /* 替换为真实二维码图片 */
        .qrcode img {
            width: 100%;
            height: 100%;
            border-radius: 8px;
        }

        .tip {
            color: #666;
            font-size: 13px;
            margin-top: 12px;
        }

        .wechat-id-box {
            background: linear-gradient(135deg, #07c160, #06ad56);
            border-radius: 16px;
            padding: 18px 24px;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .wechat-id-box:hover {
            transform: scale(1.02);
            box-shadow: 0 10px 30px rgba(7, 193, 96, 0.4);
        }

        .wechat-id-box:active {
            transform: scale(0.98);
        }

        .wechat-label {
            color: rgba(255, 255, 255, 0.9);
            font-size: 12px;
            margin-bottom: 6px;
            letter-spacing: 2px;
        }

        .wechat-id {
            color: #fff;
            font-size: 20px;
            font-weight: 600;
            letter-spacing: 1px;
        }

        .copy-hint {
            color: rgba(255, 255, 255, 0.8);
            font-size: 12px;
            margin-top: 8px;
        }

        .copy-hint span {
            display: inline-block;
            animation: bounce 1s infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateX(0); }
            50% { transform: translateX(5px); }
        }

        /* 弹窗样式 */
        .toast {
            position: fixed;
            bottom: 50px;
            left: 50%;
            transform: translateX(-50%) translateY(100px);
            background: rgba(0, 0, 0, 0.85);
            color: #fff;
            padding: 14px 28px;
            border-radius: 50px;
            font-size: 15px;
            opacity: 0;
            transition: all 0.4s ease;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

        .toast::before {
            content: "✓";
            width: 20px;
            height: 20px;
            background: #07c160;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        /* 底部说明 */
        .footer {
            margin-top: 25px;
            padding-top: 20px;
            border-top: 1px solid #eee;
            color: #aaa;
            font-size: 12px;
        }

        /* 脉冲动画 */
        .pulse-ring {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100%;
            height: 100%;
            border-radius: 16px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            animation: pulse 2s infinite;
            pointer-events: none;
        }

        @keyframes pulse {
            0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
            100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
        }