:root {
            --primary: #4361ee;
            --secondary: #3a0ca3;
            --accent: #4cc9f0;
            --success: #2ec4b6;
            --warning: #ff9f1c;
            --dark: #1d3557;
            --light: #f8f9fa;
            --gray: #6c757d;
            --light-gray: #e9ecef;
            --card-shadow: 0 10px 20px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #3a86ff 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background-color: #f5f7ff;
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            width: 100%;
            max-width: 1380px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式优化 */
        header {
            background: var(--gradient-primary);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .logo:hover {
            transform: translateX(-3px);
        }
        
        .logo i {
            margin-right: 10px;
            color: var(--accent);
            transition: transform 0.5s ease;
        }
        
        .logo:hover i {
            transform: rotate(15deg);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 25px;
            position: relative;
        }
        
        .nav-links a {
            text-decoration: none;
            color: rgba(255,255,255,0.9);
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 6px;
            position: relative;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            transform: translateX(-50%);
        }
        
        .nav-links a:hover::after, .nav-links a.active::after {
            width: 70%;
        }
        
        .nav-links a:hover, .nav-links a.active {
            color: white;
        }
        @media (min-width: 968px){
.mobile-nav-buttons {
   display: none;
}
}
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .mobile-menu-btn:hover {
            color: var(--accent);
        }
        
        .nav-buttons {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .btn {
            padding: 10px 22px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            display: inline-block;
            text-align: center;
            font-size: 1rem;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 0;
            height: 100%;
            background: rgba(255,255,255,0.2);
            z-index: -1;
            transition: var(--transition);
        }
        
        .btn:hover::before {
            width: 100%;
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid white;
            color: white;
        }
        
        .btn-outline:hover {
            background: white;
            color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(255,255,255,0.2);
        }
        
        .btn-primary {
            background: var(--accent);
            color: white;
            box-shadow: 0 4px 12px rgba(76, 201, 240, 0.4);
        }
        
        .btn-primary:hover {
            background: #3db5d8;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(76, 201, 240, 0.5);
        }
        
        .btn-secondary {
            background: var(--success);
            color: white;
            box-shadow: 0 4px 12px rgba(46, 196, 182, 0.4);
        }
        
        .btn-secondary:hover {
            background: #29a99f;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(46, 196, 182, 0.5);
        }
        
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.1rem;
        }
        
        /* 英雄区域样式优化 */
        .hero {
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #e0e7ff 0%, #dbeafe 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 800px;
            height: 800px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(67, 97, 238, 0.1) 0%, rgba(67, 97, 238, 0) 70%);
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 650px;
            animation: fadeInUp 1s ease;
        }
        
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            color: var(--dark);
            line-height: 1.2;
            text-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 40px;
            color: var(--gray);
            max-width: 90%;
        }
        
        .hero-buttons {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .hero-image {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 45%;
            max-width: 500px;
            display: none;
            animation: float 6s ease-in-out infinite;
        }
        
        /* 流程区域样式优化 */
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 70px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .section-title p {
            font-size: 1.1rem;
            color: var(--gray);
            margin-top: 25px;
        }
        
        .process-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-top: 40px;
        }
        
        .process-step {
            flex: 1;
            min-width: 220px;
            max-width: 260px;
            text-align: center;
            padding: 40px 25px 30px;
            background: white;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            position: relative;
            transition: var(--transition);
            border: 1px solid var(--light-gray);
            animation: fadeIn 0.5s ease-out;
            animation-fill-mode: both;
        }
        
        .process-step:nth-child(1) { animation-delay: 0.1s; }
        .process-step:nth-child(2) { animation-delay: 0.2s; }
        .process-step:nth-child(3) { animation-delay: 0.3s; }
        .process-step:nth-child(4) { animation-delay: 0.4s; }
        .process-step:nth-child(5) { animation-delay: 0.5s; }
        
        .process-step:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.12);
        }
        
        .step-number {
            position: absolute;
            top: -22px;
            left: 50%;
            transform: translateX(-50%);
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
            box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3);
            transition: var(--transition);
        }
        
        .process-step:hover .step-number {
            background: var(--accent);
            transform: translateX(-50%) scale(1.1);
        }
        
        .step-icon {
            width: 70px;
            height: 70px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: white;
            font-size: 1.8rem;
            transition: var(--transition);
        }
        
        .process-step:hover .step-icon {
            transform: scale(1.1);
            background: var(--gradient-accent);
        }
        
        .process-step h3 {
            margin-bottom: 15px;
            font-size: 1.4rem;
            color: var(--dark);
        }
        
        .process-step p {
            color: var(--gray);
            font-size: 0.95rem;
        }
        
        /* 需求大厅样式优化 */
        .demand-hall {
            background: white;
            padding: 80px 0;
        }
        
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }
        
        .section-header h2 {
            font-size: 2.2rem;
            color: var(--dark);
        }
        
        .section-header p {
            color: var(--gray);
        }
        
        .demand-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .demand-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            border: 1px solid var(--light-gray);
            animation: fadeIn 0.6s ease-out;
            animation-fill-mode: both;
        }
        
        .demand-card:nth-child(1) { animation-delay: 0.1s; }
        .demand-card:nth-child(2) { animation-delay: 0.2s; }
        .demand-card:nth-child(3) { animation-delay: 0.3s; }
        
        .demand-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .card-header {
            padding: 25px;
            background: var(--gradient-primary);
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .card-header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
            transform: rotate(30deg);
        }
        
        .demand-title {
            font-size: 1.4rem;
            margin-bottom: 10px;
            position: relative;
        }
        
        .demand-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            color: rgba(255,255,255,0.85);
            font-size: 0.9rem;
            position: relative;
        }
        
        .demand-description {
            margin-bottom: 20px;
            color: var(--gray);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        
        .budget {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--light-gray);
        }
        
        .budget-amount {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--success);
            position: relative;
        }
        
        .budget-amount::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--success);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.3s ease;
        }
        
        .demand-card:hover .budget-amount::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        
        /* 专家展厅样式优化 */
        .experts-section {
            background: linear-gradient(135deg, #f0f7ff 0%, #e6f2ff 100%);
            padding: 80px 0;
        }
        
        .experts-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .expert-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--light-gray);
            animation: fadeIn 0.7s ease-out;
            animation-fill-mode: both;
        }
        
        .expert-card:nth-child(1) { animation-delay: 0.1s; }
        .expert-card:nth-child(2) { animation-delay: 0.2s; }
        .expert-card:nth-child(3) { animation-delay: 0.3s; }
        
        .expert-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .expert-header {
            padding: 40px 20px 20px;
            background: var(--gradient-accent);
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .expert-header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
            transform: rotate(30deg);
        }
        
        .expert-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--warning);
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 1;
            animation: pulse 2s infinite;
        }
        
       
        .stat-value {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            transition: var(--transition);
        }
        
        .expert-card:hover .stat-value {
            color: var(--accent);
        }
        
        .stat-label {
            font-size: 0.85rem;
            color: var(--gray);
        }
        
        .expert-skills {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 25px;
        }
        
        .skill-tag {
            background: var(--light);
            color: var(--dark);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid var(--light-gray);
            transition: var(--transition);
        }
        
        .expert-card:hover .skill-tag {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        
        /* 优势区域样式优化 */
        .benefits {
            padding: 80px 0;
            background: white;
        }
        
        .benefits-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .benefit-card {
            background: white;
            border-radius: 16px;
            padding: 40px 30px;
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--light-gray);
            animation: fadeIn 0.8s ease-out;
            animation-fill-mode: both;
        }
        
        .benefit-card:nth-child(1) { animation-delay: 0.1s; }
        .benefit-card:nth-child(2) { animation-delay: 0.2s; }
        .benefit-card:nth-child(3) { animation-delay: 0.3s; }
        .benefit-card:nth-child(4) { animation-delay: 0.4s; }
        .benefit-card:nth-child(5) { animation-delay: 0.5s; }
        .benefit-card:nth-child(6) { animation-delay: 0.6s; }
        
        .benefit-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .benefit-icon {
            width: 80px;
            height: 80px;
            background: var(--gradient-primary);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: white;
            font-size: 2rem;
            transform: rotate(45deg);
            transition: var(--transition);
        }
        
        .benefit-card:hover .benefit-icon {
            transform: rotate(0deg);
            background: var(--gradient-accent);
        }
        
        .benefit-icon i {
            transform: rotate(-45deg);
            transition: var(--transition);
        }
        
        .benefit-card:hover .benefit-icon i {
            transform: rotate(0deg);
        }
        
        .benefit-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        /* 页脚样式优化 */
        footer {
            background: var(--gradient-primary);
            color: white;
            padding: 70px 0 30px;
            position: relative;
            overflow: hidden;
        }
        
        footer::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 800px;
            height: 800px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
            position: relative;
            z-index: 1;
        }
        
        .footer-column h3 {
            font-size: 1.4rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 12px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background: var(--accent);
            transition: var(--transition);
        }
        
        .footer-column:hover h3::after {
            width: 80px;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
            display: block;
            padding: 5px 0;
            position: relative;
        }
        
        .footer-links a::before {
            content: '?';
            margin-right: 8px;
            color: var(--accent);
            opacity: 0;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(5px);
        }
        
        .footer-links a:hover::before {
            opacity: 1;
        }
        
        .contact-info li {
            display: flex;
            align-items: flex-start;
            margin-bottom: 15px;
        }
        
        .contact-info i {
            margin-right: 12px;
            color: var(--accent);
            font-size: 1.2rem;
            min-width: 20px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            color: white;
            transition: var(--transition);
            font-size: 1.2rem;
        }
        
        .social-links a:hover {
            background: var(--accent);
            transform: translateY(-5px);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            position: relative;
            z-index: 1;
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes float {
            0% {
                transform: translateY(0px) translateY(-50%);
            }
            50% {
                transform: translateY(-20px) translateY(-50%);
            }
            100% {
                transform: translateY(0px) translateY(-50%);
            }
        }
        
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 159, 28, 0.4);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(255, 159, 28, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(255, 159, 28, 0);
            }
        }
        
        /* 响应式设计优化 - 重点修复移动端 */
        @media (min-width: 992px) {
            .hero {
                display: flex;
                align-items: center;
            }
            .hero-content {
                flex: 1;
            }
            .hero-image {
                display: block;
            }
        }
        
        @media (max-width: 991px) {
            .hero {
                text-align: center;
                padding: 80px 0 60px;
            }
            .hero-content {
                margin: 0 auto;
                text-align: center;
            }
            .hero h1 {
                font-size: 2.8rem;
            }
            .hero p {
                max-width: 100%;
                font-size: 1.1rem;
                margin-bottom: 30px;
            }
            .hero-buttons {
                justify-content: center;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 100;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                margin: 10px 0;
                width: 100%;
                margin-left: 0;
            }
            
            .nav-links a {
                display: block;
                padding: 12px 0;
                text-align: center;
                width: 100%;
            }
            
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .section-title p {
                font-size: 1rem;
            }
            
            .process-step {
                min-width: 100%;
                max-width: 350px;
            }
            
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            
            .section-header h2 {
                font-size: 1.8rem;
            }
            
            .section-header .btn {
                align-self: flex-start;
            }
            
            .demand-grid, .experts-container, .benefits-container {
                grid-template-columns: 1fr;
            }
            
            .nav-buttons {
                display: none;
            }
        }
        
        @media (max-width: 576px) {
            .hero {
                padding: 60px 0 40px;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                gap: 15px;
            }
            
            .btn {
                width: 100%;
            }
            
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 1.6rem;
            }
            
            .section-title h2::after {
                width: 50px;
                height: 3px;
            }
            
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            
            .footer-content {
                text-align: center;
                gap: 30px;
            }
            
            .footer-column h3::after {
                left: 50%;
                transform: translateX(-50%);
            }
            
            .social-links {
                justify-content: center;
            }
            
            .footer-links a {
                justify-content: center;
            }
            
            .contact-info li {
                justify-content: center;
            }
            
            .process-step {
                padding: 30px 20px;
            }
            
            .step-icon {
                width: 60px;
                height: 60px;
                font-size: 1.5rem;
            }
        }
        
        
 /* 新增用户信息区域样式 */
        .user-info {
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
        }
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 15px 25px;
            border-radius: 8px;
            color: white;
            font-weight: 500;
            box-shadow: 0 5px 15px rgba(0,0,0,0.15);
            z-index: 2000;
            transform: translateX(150%);
            transition: transform 0.4s ease;
        }
        
        .notification.show {
            transform: translateX(0);
        }
        
        .notification.success {
            background-color: var(--success);
        }
        
        .notification.warning {
            background-color: var(--warning);
        }
        
        .notification.error {
            background-color: var(--danger);
        }
        
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 3000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .notification-bell {
            position: relative;
            cursor: pointer;
            color: white;
            font-size: 1.4rem;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.3s ease;
        }
        
        .notification-bell:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.1);
        }
        
        .notification-count {
            position: absolute;
            top: -5px;
            right: -5px;
            background-color: #ff4757;
            color: white;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: bold;
        }
        
        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all 0.3s ease;
        }
        
        .user-avatar:hover {
            border-color: var(--accent);
            transform: scale(1.05);
        }
        
        .user-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .user-menu {
            position: absolute;
            top: 65px;
            right: 0;
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            width: 220px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 1000;
            overflow: hidden;
        }
        
        .user-info:hover .user-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .user-menu-header {
            padding: 20px;
            background: var(--gradient-primary);
            color: white;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .user-menu-header .avatar-small {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            overflow: hidden;
            border: 2px solid white;
        }
        
        .user-menu-header .avatar-small img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .user-menu-header .user-details {
            flex: 1;
        }
        
        .user-menu-header .username {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        
        .user-menu-header .user-level {
            font-size: 0.85rem;
            opacity: 0.9;
            background: rgba(255, 255, 255, 0.2);
            padding: 3px 10px;
            border-radius: 20px;
            display: inline-block;
        }
        
        .user-menu-items {
            padding: 10px 0;
        }
        
        .menu-item {
            display: flex;
            align-items: center;
            padding: 12px 20px;
            color: var(--dark);
            text-decoration: none;
            transition: all 0.2s ease;
            font-size: 0.95rem;
        }
        
        .menu-item:hover {
            background: #f5f7ff;
            color: var(--primary);
        }
        
        .menu-item i {
            margin-right: 12px;
            width: 20px;
            text-align: center;
            font-size: 1.1rem;
            color: var(--accent);
        }
        
        .divider {
            height: 1px;
            background: var(--light-gray);
            margin: 8px 0;
        }
         .auth-wrapper {
            display: flex;
            width: 100%;
            max-width: 1000px;
            margin: 0 auto;
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--box-shadow);
            border: 1px solid rgba(67, 97, 238, 0.1);
        }

        .auth-image {
            flex: 1;
            background: linear-gradient(135deg, var(--primary), #3a0ca3);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 40px;
            color: white;
            position: relative;
            overflow: hidden;
            display: none;
        }

        .auth-image::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            transform: rotate(30deg);
        }

        .auth-image h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .auth-image p {
            font-size: 1.1rem;
            text-align: center;
            max-width: 80%;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }

        .auth-image img {
            max-width: 80%;
            margin-top: 30px;
            position: relative;
            z-index: 1;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .auth-form-container {
            flex: 1;
            padding: 50px 40px;
        }

        .auth-tabs {
            display: flex;
            margin-bottom: 30px;
            border-bottom: 1px solid var(--light-gray);
        }

        .auth-tab {
            padding: 12px 30px;
            cursor: pointer;
            font-weight: 500;
            color: var(--gray);
            transition: var(--transition);
            position: relative;
        }

        .auth-tab.active {
            color: var(--primary);
        }

        .auth-tab.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .auth-tab:hover:not(.active) {
            color: var(--primary-dark);
        }

        .auth-form {
            display: none;
        }

        .auth-form.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .form-group {
            margin-bottom: 20px;
            position: relative;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 14px 16px;
            border: 1px solid var(--light-gray);
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
        }

        .input-with-icon {
            position: relative;
        }

        .input-with-icon i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gray);
        }

        .input-with-icon .form-control {
            padding-left: 45px;
        }

        .input-group {
            display: flex;
        }

        .input-group .form-control {
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            flex: 1;
        }

        .input-group-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
        }

        .input-group-btn:hover {
            background: var(--primary-dark);
        }

        .input-group-btn:disabled {
            background: var(--light-gray);
            cursor: not-allowed;
            color: var(--gray);
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .checkbox-group input {
            margin-right: 10px;
        }

        .submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 10px;
        }

        .submit-btn:hover {
            background: var(--primary-dark);
        }

        .form-links {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
        }

        .form-link {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .form-link:hover {
            text-decoration: underline;
        }

        .form-footer {
            text-align: center;
            margin-top: 30px;
            color: var(--gray);
            padding-top: 20px;
            border-top: 1px solid var(--light-gray);
            font-size: 0.95rem;
        }

        .form-footer a {
            color: var(--primary);
            text-decoration: none;
        }

        .form-footer a:hover {
            text-decoration: underline;
        }

        .error-message {
            color: var(--danger);
            font-size: 0.85rem;
            margin-top: 5px;
            display: none;
        }

        .success-message {
            color: var(--accent);
            font-size: 0.85rem;
            margin-top: 5px;
            display: none;
        }

        /* 新的验证码布局 */
        .captcha-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 5px;
        }
        
        .captcha-input {
            flex: 1;
            min-width: 120px;
        }
        
        .captcha-image-container {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .captcha-image {
            width: 100px;
            height: 46px;
            border-radius: var(--border-radius);
            background: var(--light-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid var(--light-gray);
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        
        .captcha-image img {
            max-width: 100%;
            max-height: 100%;
        }
        
        .captcha-reload {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--light-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--gray);
            transition: var(--transition);
            flex-shrink: 0;
        }
        
        .captcha-reload:hover {
            background: var(--primary);
            color: white;
        }
        
        .captcha-image .loading {
            color: var(--gray);
            font-size: 0.9rem;
            text-align: center;
            padding: 5px;
        }
   /* 登录注册主区域 */
        .auth-container {
            display: flex;
            min-height: calc(100vh - 200px);
            align-items: center;
            padding: 40px 0;
            flex: 1;
        }
        /* 移动端底部菜单 */
        .mobile-bottom-menu {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: white;
            box-shadow: 0 -2px 15px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            border-top: 1px solid #f0f0f0;
        }
        
        .mobile-bottom-menu .menu-items {
            display: flex;
            justify-content: space-around;
            padding: 8px 0;
        }
        
        .mobile-bottom-menu .menu-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 8px 12px;
            text-decoration: none;
            color: #666;
            font-size: 0.75rem;
            transition: all 0.3s ease;
            flex: 1;
        }
        
        .mobile-bottom-menu .menu-item i {
                margin-right: 1px;
            font-size: 1.4rem;
            margin-bottom: 4px;
        }
        
        .mobile-bottom-menu .menu-item.active {
            color: var(--primary);
        }
        
        .mobile-bottom-menu .menu-item:hover {
            color: var(--primary);
            transform: translateY(-3px);
        }
         /* 响应式设计 */
        @media (min-width: 768px) {
            /* 显示移动端底部菜单 */
            
            .auth-image {
                display: flex;
            }
            .auth-form-container {
                padding: 60px;
            }
        }

        @media (max-width: 767px) {
            .mobile-bottom-menu {
                display: block;
            }
            .auth-wrapper {
                border-radius: 10px;
            }
            .auth-form-container {
                padding: 30px 20px;
            }
            .auth-tab {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .form-links {
                flex-direction: column;
                gap: 10px;
            }
            .captcha-row {
                flex-wrap: wrap;
            }
            .captcha-image-container {
                margin-top: 10px;
                width: 100%;
                justify-content: flex-start;
            }
        }

        @media (max-width: 480px) {
            .auth-tab {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
            .form-control {
                padding: 12px 14px;
            }
            .input-group-btn {
                padding: 0 15px;
                font-size: 0.85rem;
            }
            .captcha-image {
                width: 90px;
            }
        }