:root {
            --primary-color: #0d6efd;
            --dark-bg: #121212;
            --darker-bg: #0a0a0a;
            --card-bg: #1e1e1e;
            --border-color: #333;
            --text-color: #f0f0f0;
            --text-muted: #aaa;
            --success-color: #198754;
            --warning-color: #ffc107;
            --wechat-color: #07c160;
            --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
            --gradient-button: linear-gradient(135deg, #90c8e5 0%, #0c4968 100%);
            --gradient-button-hover: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
 
        /* 注册卡片样式 */
        .register-card {
			margin:80px auto;
            background-color: var(--card-bg);
            border-radius: 20px;
            border: 1px solid var(--border-color);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            width: 100%;
            max-width: 700px;
            overflow: hidden;
            position: relative;
        }
        
        /* 装饰元素 */
        .card-decoration {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--gradient-button);
        }
        
        /* 注册卡片头部 */
        .register-header {
            padding: 2.5rem 2rem 1.5rem;
            text-align: center;
        }
        
        .register-title {
            font-weight: 700;
            margin-bottom: 0.5rem;
            font-size: 1.8rem;
            background: var(--gradient-button);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .register-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        
        /* 注册表单样式 */
        .register-body {
            padding: 0 2rem 1.5rem;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-label {
            color: var(--text-color);
            font-weight: 500;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
        }
        
        .form-label .required {
            color: var(--warning-color);
        }
        
        .input-with-icon {
            position: relative;
        }
        
        .input-icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 1.2rem;
            z-index: 5;
            transition: color 0.3s;
        }
        
        .form-control {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--text-color);
            padding: 0.85rem 1rem 0.85rem 3rem;
            border-radius: 10px;
            height: 52px;
            transition: all 0.3s;
            font-size: 0.95rem;
        }
        
        .form-control:focus {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.2);
            color: var(--text-color);
        }
        
        .form-control:focus + .input-icon {
            color: var(--primary-color);
        }
        
        .form-control::placeholder {
            color: var(--text-muted);
        }
        
        /* 验证码输入组 */
        .verification-group {
            display: flex;
            gap: 1rem;
        }
        
        .verification-input {
            flex: 1;
        }
        
        .verification-btn {
            background: var(--gradient-primary);
            border: none;
            color: white;
            font-weight: 600;
            padding: 0 1.5rem;
            border-radius: 10px;
            height: 52px;
            transition: all 0.3s;
            white-space: nowrap;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
        }
        
        .verification-btn:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
        }
        
        .verification-btn:disabled {
            background: #6c757d;
            cursor: not-allowed;
            opacity: 0.7;
        }
        
        /* 密码强度指示器 */
        .password-strength {
            margin-top: 0.75rem;
        }
        
        .strength-bar {
            height: 6px;
            background-color: var(--border-color);
            border-radius: 3px;
            overflow: hidden;
            margin-bottom: 0.5rem;
        }
        
        .strength-fill {
            height: 100%;
            width: 0;
            border-radius: 3px;
            transition: all 0.3s ease;
            background: var(--gradient-success);
        }
        
        .strength-text {
            font-size: 0.85rem;
            display: flex;
            justify-content: space-between;
            color: var(--text-muted);
        }
        
        .strength-weak {
            width: 25%;
            background: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
        }
        
        .strength-fair {
            width: 50%;
            background: linear-gradient(135deg, #f7971e 0%, #ffd200 100%);
        }
        
        .strength-good {
            width: 75%;
            background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
        }
        
        .strength-strong {
            width: 100%;
            background: var(--gradient-success);
        }
        
        /* 表单验证状态 - 只有成功提示 */
        .is-valid {
            border-color: rgba(25, 135, 84, 0.5) !important;
        }
        
        .valid-feedback {
            display: block;
            margin-top: 0.5rem;
            font-size: 0.85rem;
            color: var(--success-color);
            opacity: 0;
            transform: translateY(-5px);
            transition: all 0.3s;
        }
        
        .valid-feedback.show {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* 注册按钮 - 美化版 */
        .register-btn-container {
            margin: 2.5rem 0 1.5rem;
            position: relative;
        }
        
        .register-btn {
            background: var(--gradient-button);
            border: none;
            color: white;
            font-weight: 700;
            padding: 0.85rem;
            border-radius: 12px;
            width: 100%;
            height: 60px;
            transition: all 0.4s;
            font-size: 1.1rem;
            letter-spacing: 1px;
            position: relative;
            overflow: hidden;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            text-transform: uppercase;
            box-shadow: 0 8px 25px rgba(245, 87, 108, 0.3);
        }
        
        .register-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-button-hover);
            z-index: -1;
            opacity: 0;
            transition: opacity 0.4s;
        }
        
        .register-btn::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }
        
        .register-btn:hover:not(:disabled) {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(245, 87, 108, 0.4);
        }
        
        .register-btn:hover:not(:disabled)::before {
            opacity: 1;
        }
        
        .register-btn:active:not(:disabled)::after {
            width: 300px;
            height: 300px;
        }
        
        .register-btn:disabled {
            background: #6c757d;
            cursor: not-allowed;
            opacity: 0.6;
            transform: none !important;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2) !important;
        }
        
        .register-btn.success {
            background: var(--gradient-success);
            box-shadow: 0 8px 25px rgba(17, 153, 142, 0.4);
        }
        
        .register-btn.success::before {
            background: linear-gradient(135deg, #38ef7d 0%, #11998e 100%);
        }
        
        .register-btn .btn-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
        }
        
        .register-btn:hover:not(:disabled) .btn-icon {
            transform: translateX(5px);
        }
        
        .register-btn:disabled .btn-icon {
            opacity: 0.5;
        }
        
        .btn-pulse {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100%;
            height: 100%;
            border-radius: 12px;
            background: var(--gradient-button);
            opacity: 0;
            z-index: -2;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% {
                opacity: 0.7;
                transform: translate(-50%, -50%) scale(1);
            }
            100% {
                opacity: 0;
                transform: translate(-50%, -50%) scale(1.05);
            }
        }
        
        /* 登录提示 */
        .login-prompt {
            text-align: center;
            margin-bottom: 1.5rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .login-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            margin-left: 0.5rem;
            transition: color 0.3s;
        }
        
        .login-link:hover {
            color: #4dabf7;
            text-decoration: underline;
        }
        
        /* 社交媒体注册 */
        .social-register {
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
        }
        
        .social-title {
            text-align: center;
            margin-bottom: 1rem;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .social-buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
        }
        
        .social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--text-color);
            font-size: 1.5rem;
            transition: all 0.3s;
            cursor: pointer;
        }
        
        .social-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
            border-color: transparent;
        }
        
        .social-btn.wechat {
            color: var(--wechat-color);
        }
        
        .social-btn.wechat:hover {
            background-color: rgba(7, 193, 96, 0.1);
            box-shadow: 0 8px 20px rgba(7, 193, 96, 0.3);
        }
        
        .social-btn.qq {
            color: #12b7f5;
        }
        
        .social-btn.qq:hover {
            background-color: rgba(18, 183, 245, 0.1);
            box-shadow: 0 8px 20px rgba(18, 183, 245, 0.3);
        }
        
        .social-btn.weibo {
            color: #e6162d;
        }
        
        .social-btn.weibo:hover {
            background-color: rgba(230, 22, 45, 0.1);
            box-shadow: 0 8px 20px rgba(230, 22, 45, 0.3);
        }
        
        /* 页脚 */
        .register-footer {
            padding: 1.5rem 2rem;
            border-top: 1px solid var(--border-color);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        /* 加载动画 */
        .spinner {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s ease-in-out infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
		        /* 登录卡片样式 */
		        .login-card {
		            background-color: var(--card-bg);
		            border-radius: 15px;
		            border: 1px solid var(--border-color);
		            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
		            width: 100%;
					margin: 160px auto;
		            max-width: 450px;
		            overflow: hidden;
		            position: relative;
		            transition: transform 0.3s ease;
		        }
		        
		        /* 二维码角标样式 */
		        .qr-corner {
		            position: absolute;
		            top: 0;
		            right: 0;
		            width: 60px;
		            height: 60px;
		            background: linear-gradient(45deg, #ccc, #000);
		            border-bottom-left-radius: 100%;
		            display: flex;
		            align-items: center;
		            justify-content: flex-end;
		            padding-right: 8px;
		            padding-bottom: 8px;
		            cursor: pointer;
		            z-index: 10;
		            transition: all 0.3s;
		        }
		        
		        .qr-corner:hover {
		            width: 65px;
		            height: 65px;
		            background: linear-gradient(45deg, #333, #000)
		        }
		        
		        .qr-corner i {
		            color: white;
		            font-size: 1.5rem;
		        }
		        
		        /* 全屏二维码容器 */
		        .qr-fullscreen {
		            position: fixed;
		            top: 0;
		            left: 0;
		            width: 100%;
		            height: 100%;
		            background-color: rgba(0, 0, 0, 0.9);
		            z-index: 9999;
		            display: none;
		            opacity: 0;
		            transition: opacity 0.5s ease;
		        }
		        
		        .qr-fullscreen.active {
		            display: flex;
		            opacity: 1;
		        }
		        
		        .qr-fullscreen-content {
		            width: 100%;
		            height: 100%;
		            display: flex;
		            flex-direction: column;
		            align-items: center;
		            justify-content: center;
		            padding: 20px;
		        }
		        
		        .qr-close-btn {
		            position: absolute;
		            top: 30px;
		            right: 30px;
		            width: 50px;
		            height: 50px;
		            border-radius: 50%;
		            background-color: rgba(255, 255, 255, 0.1);
		            border: none;
		            color: white;
		            font-size: 1.5rem;
		            cursor: pointer;
		            display: flex;
		            align-items: center;
		            justify-content: center;
		            transition: all 0.3s;
		            z-index: 10000;
		        }
		        
		        .qr-close-btn:hover {
		            background-color: rgba(255, 255, 255, 0.2);
		            transform: rotate(90deg);
		        }
		        
		        .qr-title {
		            margin-bottom: 30px;
		            text-align: center;
		        }
		        
		        .qr-title h2 {
		            color: white;
		            font-weight: 600;
		            margin-bottom: 10px;
		        }
		        
		        .qr-title p {
		            color: var(--text-muted);
		            font-size: 1.1rem;
		        }
		        
		        .qr-container {
		            background-color: white;
		            border-radius: 15px;
		            padding: 30px;
		            max-width: 400px;
		            width: 100%;
		            text-align: center;
		            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
		            position: relative;
		            animation: qrSlideUp 0.5s ease-out;
		        }
		        
		        @keyframes qrSlideUp {
		            from {
		                opacity: 0;
		                transform: translateY(50px);
		            }
		            to {
		                opacity: 1;
		                transform: translateY(0);
		            }
		        }
		        
		        .qr-code-img {
		            width: 250px;
		            height: 250px;
		            background-color: #f5f5f5;
		            border-radius: 10px;
		            margin: 0 auto 20px;
		            display: flex;
		            align-items: center;
		            justify-content: center;
		            color: #333;
		            font-size: 5rem;
		            position: relative;
		            overflow: hidden;
		        }
		        
		        .qr-code-img::before {
		            content: '';
		            position: absolute;
		            top: 0;
		            left: 0;
		            width: 100%;
		            height: 100%;
		            background: linear-gradient(45deg, transparent 48%, rgba(7, 193, 96, 0.1) 50%, transparent 52%);
		            background-size: 200% 200%;
		            animation: qrScan 2s linear infinite;
		        }
		        
		        @keyframes qrScan {
		            0% {
		                background-position: 0% 0%;
		            }
		            100% {
		                background-position: 0% 200%;
		            }
		        }
		        
		        .qr-instructions {
		            color: #333;
		            margin-bottom: 20px;
		            line-height: 1.6;
		        }
		        
		        .qr-instructions ol {
		            text-align: left;
		            padding-left: 20px;
		            margin-top: 10px;
		        }
		        
		        .qr-instructions li {
		            margin-bottom: 8px;
		        }
		        
		        .qr-status {
		            margin-top: 20px;
		            padding: 10px;
		            border-radius: 8px;
		            background-color: rgba(7, 193, 96, 0.1);
		            color: var(--wechat-color);
		            font-weight: 500;
		            display: none;
		        }
		        
		        .qr-status.active {
		            display: block;
		            animation: fadeIn 0.5s;
		        }
		        
		        @keyframes fadeIn {
		            from { opacity: 0; }
		            to { opacity: 1; }
		        }
		        
		        /* 登录卡片头部 */
		        .login-header {
		            padding: 2rem 2rem 1.5rem;
		            text-align: center;
		            border-bottom: 1px solid var(--border-color);
		        }
		        
		        .login-title {
		            font-weight: 600;
		            margin-bottom: 0.5rem;
		        }
		        
		        .login-subtitle {
		            color: var(--text-muted);
		            font-size: 0.9rem;
		        }
		        
		        /* 登录表单样式 */
		        .login-body {
		            padding: 1.5rem 2rem;
		        }
		        
		        .form-group {
		            margin-bottom: 1.5rem;
		        }
		        
		        .input-with-icon {
		            position: relative;
		        }
		        
		        .input-icon {
		            position: absolute;
		            left: 15px;
		            top: 50%;
		            transform: translateY(-50%);
		            color: var(--text-muted);
		            font-size: 1.2rem;
		            z-index: 5;
		        }
		        
		        .form-control {
		            background-color: rgba(255, 255, 255, 0.05);
		            border: 1px solid var(--border-color);
		            color: var(--text-color);
		            padding: 0.75rem 1rem 0.75rem 3rem;
		            border-radius: 8px;
		            height: 50px;
		            transition: all 0.3s;
		        }
		        
		        .form-control:focus {
		            background-color: rgba(255, 255, 255, 0.1);
		            border-color: var(--primary-color);
		            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
		            color: var(--text-color);
		        }
		        
		        .form-control::placeholder {
		            color: var(--text-muted);
		        }
		        
		        /* 登录选项 */
		        .login-options {
		            display: flex;
		            justify-content: space-between;
		            align-items: center;
		            margin-bottom: 1.5rem;
		            font-size: 0.9rem;
		        }
		        
		        .remember-me {
		            display: flex;
		            align-items: center;
		            gap: 0.5rem;
		        }
		        
		        .form-check-input {
		            background-color: rgba(255, 255, 255, 0.1);
		            border-color: var(--border-color);
		        }
		        
		        .form-check-input:checked {
		            background-color: var(--primary-color);
		            border-color: var(--primary-color);
		        }
		        
		        .forgot-password {
		            color: var(--primary-color);
		            text-decoration: none;
		            transition: color 0.3s;
		        }
		        
		        .forgot-password:hover {
		            color: #4dabf7;
		            text-decoration: underline;
		        }
		        
		        /* 登录按钮 */
		        .login-btn {
		            background-color:#0c0c0c;
		            border: none;
		            color: white;
		            font-weight: 600;
		            padding: 0.75rem;
		            border-radius: 8px;
		            width: 100%;
		            height: 50px;
		            transition: all 0.3s;
		            margin-bottom: 1.5rem;
		        }
		        
		        .login-btn:hover {
		            background-color: #0b5ed7;
		            transform: translateY(-2px);
		            box-shadow: 0 5px 15px rgba(13, 110, 253, 0.4);
		        }
		        
		        /* 注册提示 */
		        .register-prompt {
		            text-align: center;
		            margin-bottom: 1.5rem;
		            color: var(--text-muted);
		        }
		        
		        .register-link {
		            color: var(--primary-color);
		            text-decoration: none;
		            font-weight: 500;
		            margin-left: 0.5rem;
		        }
		        
		        .register-link:hover {
		            text-decoration: underline;
		        }
		        
		        /* 分割线 */
		        .divider {
		            display: flex;
		            align-items: center;
		            margin-bottom: 1.5rem;
		            color: var(--text-muted);
		        }
		        
		        .divider::before, .divider::after {
		            content: '';
		            flex: 1;
		            border-bottom: 1px solid var(--border-color);
		        }
		        
		        .divider-text {
		            padding: 0 1rem;
		            font-size: 0.9rem;
		        }
		        
		        /* 社交媒体登录 */
		        .social-login {
		            display: flex;
		            justify-content: center;
		            gap: 1rem;
		            margin-bottom: 1.5rem;
		        }
		        
		        .social-btn {
		            display: flex;
		            align-items: center;
		            justify-content: center;
		            width: 50px;
		            height: 50px;
		            border-radius: 50%;
		            border: 1px solid var(--border-color);
		            background-color: rgba(255, 255, 255, 0.05);
		            color: var(--text-color);
		            font-size: 1.5rem;
		            transition: all 0.3s;
		            cursor: pointer;
		        }
		        
		        .social-btn:hover {
		            transform: translateY(-3px);
		            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
		        }
		        
		        .social-btn.wechat {
		            color: var(--wechat-color);
		        }
		        
		        .social-btn.wechat:hover {
		            background-color: rgba(7, 193, 96, 0.1);
		            border-color: var(--wechat-color);
		        }
		        
		        .social-btn.qq {
		            color: #12b7f5;
		        }
		        
		        .social-btn.qq:hover {
		            background-color: rgba(18, 183, 245, 0.1);
		            border-color: #12b7f5;
		        }
		        
		        .social-btn.weibo {
		            color: #e6162d;
		        }
		        
		        .social-btn.weibo:hover {
		            background-color: rgba(230, 22, 45, 0.1);
		            border-color: #e6162d;
		        }
		        
		        /* 微信登录按钮 */
		        .wechat-login-btn {
		            background-color: var(--wechat-color);
		            border: none;
		            color: white;
		            font-weight: 600;
		            padding: 0.75rem;
		            border-radius: 8px;
		            width: 100%;
		            height: 50px;
		            transition: all 0.3s;
		            display: flex;
		            align-items: center;
		            justify-content: center;
		            gap: 0.75rem;
		            cursor: pointer;
		        }
		        
		        .wechat-login-btn:hover {
		            background-color: #06ad56;
		            transform: translateY(-2px);
		            box-shadow: 0 5px 15px rgba(7, 193, 96, 0.4);
		        }
		        
		        /* 页脚 */
		        .login-footer {
		            padding: 1.5rem 2rem;
		            border-top: 1px solid var(--border-color);
		            text-align: center;
		            color: var(--text-muted);
		            font-size: 0.85rem;
		        }
		        
		        /* 响应式调整 */
		        @media (max-width: 768px) {
		            .qr-container {
		                padding: 20px;
		            }
		            
		            .qr-code-img {
		                width: 200px;
		                height: 200px;
		                font-size: 4rem;
		            }
		            
		            .qr-close-btn {
		                top: 20px;
		                right: 20px;
		            }
		        }
		        
		        @media (max-width: 576px) {
		            .login-card {
		                max-width: 100%;
		            }
		            
		            .login-header, .login-body, .login-footer {
		                padding-left: 1.5rem;
		                padding-right: 1.5rem;
		            }
		            
		            .qr-container {
		                padding: 15px;
		            }
		            
		            .qr-code-img {
		                width: 180px;
		                height: 180px;
		                font-size: 3.5rem;
		            }
		        }
		        
		        /* 加载动画 */
		        .spinner {
		            display: inline-block;
		            width: 20px;
		            height: 20px;
		            border: 3px solid rgba(255, 255, 255, 0.3);
		            border-radius: 50%;
		            border-top-color: white;
		            animation: spin 1s ease-in-out infinite;
		        }
		        
		        @keyframes spin {
		            to { transform: rotate(360deg); }
		        }
		
		
        /* 响应式调整 */
        @media (max-width: 576px) {
            .register-card {
                max-width: 100%;
                border-radius: 15px;
            }
            
            .register-header, .register-body, .register-footer {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
            
            .register-title {
                font-size: 1.6rem;
            }
            
            .verification-group {
                flex-direction: column;
            }
            
            .verification-btn {
                width: 100%;
            }
            
            .register-btn {
                height: 56px;
                font-size: 1rem;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .form-group {
            animation: fadeInUp 0.5s ease-out forwards;
            opacity: 0;
        }
        
        .form-group:nth-child(1) { animation-delay: 0.1s; }
        .form-group:nth-child(2) { animation-delay: 0.2s; }
        .form-group:nth-child(3) { animation-delay: 0.3s; }
        .form-group:nth-child(4) { animation-delay: 0.4s; }
        .form-group:nth-child(5) { animation-delay: 0.5s; }
        .form-group:nth-child(6) { animation-delay: 0.6s; }