* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
            color: white;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow-x: hidden;
            padding: 20px 0;
        }
        
        /* 背景装饰 */
        .background-effects {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            pointer-events: none;
        }
        
        .bg-gradient {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
                        radial-gradient(circle at 70% 80%, rgba(247, 147, 30, 0.1) 0%, transparent 50%);
        }
        
        .floating-particles {
            position: absolute;
            width: 100%;
            height: 100%;
        }
        
        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 107, 53, 0.3);
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
        }
        
        .particle:nth-child(1) { top: 20%; left: 20%; animation-delay: 0s; }
        .particle:nth-child(2) { top: 60%; left: 80%; animation-delay: 2s; }
        .particle:nth-child(3) { top: 80%; left: 30%; animation-delay: 4s; }
        
        /* 返回按钮 */
        .back-button {
            position: fixed;
            top: 30px;
            left: 30px;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }
        
        .back-button:hover {
            color: #ff6b35;
            transform: translateX(-5px);
        }
        
        /* 注册容器 */
        .register-container {
            position: relative;
            z-index: 10;
            width: 100%;
            max-width: 450px;
            margin: 0 auto;
            padding: 20px;
        }
        
        .register-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
        }
        
        .register-card:hover {
            border-color: rgba(255, 107, 53, 0.3);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
        }
        
        /* Logo和标题 */
        .logo-container {
            display: flex;
            align-items: center;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .logo-container:hover {
            transform: scale(1.05);
        }
        
        .logo-container img {
            max-height: 40px;
            width: auto;
            transition: all 0.3s ease;
        }
        
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            text-decoration: none;
        }
        
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        
        .register-header {
            text-align: center;
            margin-bottom: 35px;
        }
        
        .logo-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #ff6b35, #f7931e);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 2rem;
            color: white;
            animation: pulse 2s ease-in-out infinite;
        }
        
        .register-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        
        .register-subtitle {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        
        /* 表单样式 */
        .register-form {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        
        .form-group {
            position: relative;
        }
        
        .form-label {
            display: block;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 8px;
        }
        
        .form-input {
            width: 100%;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            padding: 15px 20px;
            color: white;
            font-size: 14px;
            transition: all 0.3s ease;
        }
        
        .form-input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        
        .form-input:focus {
            outline: none;
            border-color: #ff6b35;
            background: rgba(0, 0, 0, 0.4);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
        }
        
        .form-hint {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }
        
        .password-toggle {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            font-size: 16px;
            transition: color 0.3s ease;
        }
        
        .password-toggle:hover {
            color: rgba(255, 255, 255, 0.8);
        }
        
        /* 验证码输入框 */
        .verification-code-group {
            display: flex;
            gap: 10px;
        }
        
        .verification-input {
            flex: 1;
        }
        
        .send-code-button {
            background: linear-gradient(135deg, #ff6b35, #f7931e);
            border: none;
            border-radius: 12px;
            padding: 15px 20px;
            color: white;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
            min-width: 120px;
        }
        
        .send-code-button:hover:not(:disabled) {
            transform: translateY(-1px);
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
        }
        
        .send-code-button:disabled {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.4);
            cursor: not-allowed;
        }
        
        /* 协议同意 */
        .agreement {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin: 15px 0;
        }
        
        .agreement input {
            width: 16px;
            height: 16px;
            accent-color: #ff6b35;
            margin-top: 2px;
        }
        
        .agreement label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            line-height: 1.4;
        }
        
        .agreement a {
            color: #ff6b35;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .agreement a:hover {
            color: #f7931e;
        }
        
        /* 注册按钮 */
        .register-button {
            width: 100%;
            background: linear-gradient(135deg, #ff6b35, #f7931e);
            border: none;
            border-radius: 12px;
            padding: 15px;
            color: white;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }
        
        .register-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
        }
        
        .register-button:active {
            transform: translateY(0);
        }
        
        /* 分割线 */
        .divider {
            display: flex;
            align-items: center;
            margin: 25px 0;
        }
        
        .divider::before,
        .divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: rgba(255, 255, 255, 0.2);
        }
        
        .divider span {
            padding: 0 20px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
        }
        
        /* 第三方注册 */
        .social-register {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .social-button {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            color: white;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .social-button:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-1px);
        }
        
        .social-button.wechat {
            background: rgba(7, 193, 96, 0.1);
            border-color: rgba(7, 193, 96, 0.3);
        }
        
        .social-button.qq {
            background: rgba(18, 183, 245, 0.1);
            border-color: rgba(18, 183, 245, 0.3);
        }
        
        /* 登录链接 */
        .login-link {
            text-align: center;
            margin-top: 25px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        
        .login-link a {
            color: #ff6b35;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .login-link a:hover {
            color: #f7931e;
        }
        
        /* 响应式设计 */
        @media (max-width: 480px) {
            .register-container {
                padding: 15px;
            }
            
            .register-card {
                padding: 30px 25px;
            }
            
            .back-button {
                top: 20px;
                left: 20px;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
        }
        
        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
        }
        
        .fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }
        
        /* 标准化页脚 */
        .standard-footer {
            background: linear-gradient(135deg, var(--dark-secondary) 0%, var(--dark-tertiary) 100%);
            border-top: 1px solid var(--glass-border);
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        
        .footer-section {
            color: var(--text-secondary);
        }
        
        .footer-title {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
        }
        
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 30px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--glass-border);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
        }
        
        .footer-copyright {
            color: var(--text-muted);
            font-size: 12px;
            line-height: 1.6;
        }
        
        .footer-copyright p {
            margin: 5px 0;
        }