:root {
            --primary-color: #f68a49;
            --primary-dark: #e07a3a;
            --primary-light: #f9b28a;
            --secondary-color: #2c3e50;
            --accent-color: #e74c3c;
            --light-bg: #f8f9fa;
            --dark-bg: #2c3e50;
            --text-dark: #333;
            --text-light: #777;
            --btn-gradient: linear-gradient(45deg, #f68a49, #f9b28a);
            --btn-gradient-hover: linear-gradient(45deg, #e07a3a, #f68a49);
            --transition: all 0.3s ease;
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        /* 导航栏优化 */
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            padding: 10px 0;
            transition: var(--transition);
        }
        
        .navbar.scrolled {
            padding: 5px 0;
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 24px;
            color: var(--primary-color) !important;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        
        .navbar-brand i {
            margin-right: 8px;
            font-size: 28px;
            transition: var(--transition);
        }
        
        .nav-item {
            margin: 0 3px;
        }
        
        .nav-link {
            font-weight: 500;
            position: relative;
            padding: 8px 15px !important;
            border-radius: 4px;
            transition: var(--transition);
            color: var(--text-dark) !important;
        }
        
        .nav-link:hover {
            background-color: rgba(246, 138, 73, 0.1);
            color: var(--primary-color) !important;
        }
        
        .nav-link:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: var(--transition);
            transform: translateX(-50%);
        }
        
        .nav-link:hover:after {
            width: 70%;
        }
        
        .btn-login {
            background: transparent;
            color: var(--primary-color) !important;
            border: 2px solid var(--primary-color);
            border-radius: 30px;
            padding: 6px 20px !important;
            font-weight: 600;
            transition: var(--transition);
            margin-right: 10px;
        }
        
        .btn-login:hover {
            background: var(--primary-color);
            color: white !important;
            transform: translateY(-2px);
            box-shadow: 0 5px 12px rgba(246, 138, 73, 0.3);
        }
        
        .btn-register {
            background: var(--btn-gradient);
            color: white !important;
            border: none;
            border-radius: 30px;
            padding: 8px 25px !important;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(246, 138, 73, 0.35);
            position: relative;
            overflow: hidden;
        }
        
        .btn-register:before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: 0.5s;
        }
        
        .btn-register:hover:before {
            left: 100%;
        }
        
        .btn-register:hover {
            background: var(--btn-gradient-hover);
            transform: translateY(-2px);
            box-shadow: 0 7px 16px rgba(246, 138, 73, 0.45);
            color: white !important;
        }
        
        .navbar-toggler {
            border: none;
            outline: none;
            padding: 4px 8px;
        }
        
        .navbar-toggler:focus {
            outline: none;
            box-shadow: none;
        }
        
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(246, 138, 73, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 1.2em;
            height: 1.2em;
        }
        
        /* 响应式设计优化 */
        @media (max-width: 991px) {
            .nav-buttons {
                margin-top: 15px;
                display: flex;
                flex-direction: column;
                width: 100%;
            }
            
            .btn-login, .btn-register {
                margin: 8px 0;
                width: 100%;
                text-align: center;
            }
            
            .navbar-collapse {
                background: white;
                padding: 15px;
                border-radius: 8px;
                box-shadow: 0 5px 15px rgba(0,0,0,0.1);
                margin-top: 10px;
            }
        }

        /* 英雄区域优化 */
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 120px 0 100px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero-section:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: 100% 100%;
        }
        
        .hero-section h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            font-weight: 800;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .hero-section p {
            font-size: 1.25rem;
            max-width: 700px;
            margin: 0 auto 35px;
            opacity: 0.9;
            font-weight: 300;
        }
        
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        .btn-hero-primary {
            background-color: white;
            color: var(--primary-color) !important;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
        }
        
        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(0,0,0,0.2);
        }
        
        .btn-hero-outline {
            background: transparent;
            color: white !important;
            border: 2px solid white;
            padding: 10px 28px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        
        .btn-hero-outline:hover {
            background: white;
            color: var(--primary-color) !important;
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(0,0,0,0.2);
        }
        
        /* 功能区域优化 */
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.6rem;
            color: var(--secondary-color);
            position: relative;
            padding-bottom: 15px;
            font-weight: 700;
        }
        
        .section-title h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        
        .section-title p {
            color: var(--text-light);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 15px auto 0;
        }
        
        .feature-box {
            text-align: center;
            padding: 35px 25px;
            border-radius: 12px;
            transition: var(--transition);
            margin-bottom: 30px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.06);
            height: 100%;
            border: 1px solid rgba(0,0,0,0.05);
            background: white;
        }
        
        .feature-box:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .feature-icon {
            font-size: 54px;
            color: var(--primary-color);
            margin-bottom: 22px;
            display: inline-block;
            height: 80px;
            width: 80px;
            line-height: 80px;
            text-align: center;
            border-radius: 50%;
            background: rgba(246, 138, 73, 0.1);
            transition: var(--transition);
        }
        
        .feature-box:hover .feature-icon {
            background: var(--primary-color);
            color: white;
            transform: scale(1.1);
        }
        
        .feature-box h4 {
            font-size: 1.35rem;
            margin-bottom: 15px;
            color: var(--secondary-color);
            font-weight: 600;
        }
        
        .feature-box p {
            color: var(--text-light);
            font-size: 0.95rem;
        }
        
        /* 统计数据区域优化 */
        .stats-section {
            background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
            color: white;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        
        .stats-section:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,50 C20,0 50,0 100,50 L100,100 L0,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: 100% 100%;
        }
        
        .stat-item {
            text-align: center;
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }
        
        .stat-number {
            font-size: 3.2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 8px;
            display: block;
        }
        
        .stat-desc {
            font-size: 1.1rem;
            opacity: 0.9;
            font-weight: 300;
        }
        
        /* 价格区域优化 */
        .pricing-table {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            transition: var(--transition);
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
            border: 1px solid rgba(0,0,0,0.05);
        }
        
        .pricing-table:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.12);
        }
        
        .pricing-header {
            background: var(--primary-color);
            color: white;
            padding: 35px 20px;
            text-align: center;
            position: relative;
        }
        
        .pricing-header:after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: 0;
            width: 100%;
            height: 40px;
            background: var(--primary-color);
            clip-path: polygon(0 0, 100% 0, 50% 100%, 0 0);
        }
        
        .pricing-header h3 {
            font-size: 1.6rem;
            margin-bottom: 8px;
            font-weight: 600;
        }
        
        .pricing-body {
            padding: 40px 25px 30px;
        }
        
        .price {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--secondary-color);
            text-align: center;
            margin: 25px 0;
            position: relative;
        }
        
        .price span {
            font-size: 1.1rem;
            font-weight: 400;
            color: var(--text-light);
        }
        
        .pricing-body ul {
            margin-bottom: 30px;
        }
        
        .pricing-body li {
            padding: 10px 0;
            border-bottom: 1px dashed #eee;
            color: var(--text-light);
            display: flex;
            align-items: center;
        }
        
        .pricing-body li:before {
            content: '✓';
            color: var(--primary-color);
            margin-right: 10px;
            font-weight: bold;
        }
        
        .pricing-body .btn {
            border-radius: 30px;
            padding: 10px;
            font-weight: 600;
            transition: var(--transition);
        }
        
        /* 页脚优化 */
        .footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 70px 0 30px;
            position: relative;
        }
        
        .footer:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--btn-gradient);
        }
        
        .footer h5 {
            font-size: 1.2rem;
            margin-bottom: 22px;
            position: relative;
            padding-bottom: 10px;
            font-weight: 600;
        }
        
        .footer h5:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        
        .footer p, .footer li {
            opacity: 0.8;
            transition: var(--transition);
        }
        
        .footer a {
            color: #ddd;
            transition: var(--transition);
            text-decoration: none;
        }
        
        .footer a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .footer ul {
            list-style: none;
            padding: 0;
        }
        
        .footer li {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .footer li:before {
            content: '•';
            color: var(--primary-color);
            margin-right: 8px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 50px;
            border-top: 1px solid rgba(255,255,255,0.1);
            opacity: 0.7;
            font-size: 0.9rem;
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        
        .delay-1 {
            animation-delay: 0.2s;
        }
        
        .delay-2 {
            animation-delay: 0.4s;
        }
        
        .delay-3 {
            animation-delay: 0.6s;
        }
        
        /* 滚动条优化 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }
        
        ::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }
        
        /* 关于我们页面特定样式 */
        .about-section {
            padding: 100px 0;
        }
        
        .about-content {
            margin-bottom: 50px;
        }
        
        .about-image {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        }
        
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .team-member img {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 20px;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .team-member h4 {
            margin-bottom: 5px;
            color: var(--secondary-color);
        }
        
        .team-member p {
            color: var(--text-light);
        }
        
        .timeline {
            position: relative;
            padding: 20px 0;
        }
        
        .timeline:before {
            content: '';
            position: absolute;
            left: 50%;
            width: 2px;
            height: 100%;
            background: var(--primary-color);
            transform: translateX(-50%);
        }
        
        .timeline-item {
            width: 50%;
            padding: 20px 40px;
            position: relative;
        }
        
        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }
        
        .timeline-item:nth-child(even) {
            left: 50%;
        }
        
        .timeline-item:before {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background: var(--primary-color);
            border-radius: 50%;
            top: 30px;
        }
        
        .timeline-item:nth-child(odd):before {
            right: -10px;
        }
        
        .timeline-item:nth-child(even):before {
            left: -10px;
        }
        
        .timeline-content {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        
        .timeline-date {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 10px;
        }
        
        /* 联系我们页面特定样式 */
        .contact-section {
            padding: 100px 0;
        }
        
        .contact-info {
            margin-bottom: 40px;
        }
        
        .contact-card {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            margin-bottom: 30px;
            text-align: center;
            transition: var(--transition);
        }
        
        .contact-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.12);
        }
        
        .contact-icon {
            font-size: 40px;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .contact-card h4 {
            margin-bottom: 15px;
            color: var(--secondary-color);
        }
        
        .contact-card p {
            color: var(--text-light);
            margin-bottom: 0;
        }
        
        .contact-form {
            background: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }
        
        .form-control {
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #e1e5eb;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(246, 138, 73, 0.25);
        }
        
        .btn-submit {
            background: var(--btn-gradient);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(246, 138, 73, 0.35);
            width: 100%;
        }
        
        .btn-submit:hover {
            background: var(--btn-gradient-hover);
            transform: translateY(-2px);
            box-shadow: 0 7px 16px rgba(246, 138, 73, 0.45);
            color: white;
        }
        
        .map-container {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            height: 400px;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .timeline:before {
                left: 20px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 20px;
            }
            
            .timeline-item:nth-child(odd),
            .timeline-item:nth-child(even) {
                left: 0;
                text-align: left;
            }
            
            .timeline-item:nth-child(odd):before,
            .timeline-item:nth-child(even):before {
                left: 10px;
            }
        }
        
        
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
        }
        
        .comparison-table th, .comparison-table td {
            padding: 15px;
            text-align: center;
            border-bottom: 1px solid #eee;
        }
        
        .comparison-table th {
            background-color: #f8f9fa;
            font-weight: 600;
            color: var(--secondary-color);
        }
        
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        
        .comparison-table .feature-name {
            text-align: left;
            font-weight: 500;
            color: var(--text-dark);
        }
        
        .comparison-table .yes {
            color: #2ecc71;
            font-weight: bold;
        }
        
        .comparison-table .no {
            color: #e74c3c;
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .fade-in-up {
            opacity: 0;
            animation: fadeInUp 0.6s ease forwards;
        }
        
        .delay-1 {
            animation-delay: 0.2s;
        }
        
        .delay-2 {
            animation-delay: 0.4s;
        }
        
        .delay-3 {
            animation-delay: 0.6s;
        }