/* 基础样式重置 */
        :root {
            --primary: #4361ee;
            --primary-light: #4895ef;
            --secondary: #3f37c9;
            --dark: #1b263b;
            --light: #f8f9fa;
            --gray: #6c757d;
            --white: #ffffff;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --border-radius: 16px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
            text-align: center;
            cursor: pointer;
            font-size: 1rem;
        }
        
        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: var(--shadow);
        }
        
        .btn-primary:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(63, 55, 201, 0.3);
        }
        
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background-color: transparent;
        }
        
        .btn-outline:hover {
            background-color: var(--primary);
            color: var(--white);
        }
        
        .section {
            padding: 100px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 5px;
        }
        
        .section-title p {
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        
        /* 导航栏 - 全新设计 */
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: all 0.3s ease;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
        }
        
        .navbar.scrolled {
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }
        
        .navbar-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 48px;
            margin-right: 12px;
        }
        
        .logo-text {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--dark);
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 35px;
            position: relative;
        }
        
        .nav-links a {
            font-weight: 600;
            color: var(--dark);
            transition: color 0.3s;
            font-size: 1.05rem;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .nav-links li::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s;
        }
        
        .nav-links li:hover::after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 1.8rem;
            color: var(--dark);
            cursor: pointer;
            z-index: 1001;
        }
        
        /* 英雄区域 - 全新设计 */
        .hero {
            background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
            padding: 180px 0 120px;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 200%;
            background: radial-gradient(circle, rgba(67, 97, 238, 0.1) 0%, rgba(67, 97, 238, 0) 70%);
            z-index: 1;
        }
        
        .hero-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        
        .hero-content {
            position: relative;
        }
        
        .hero h1 {
            font-size: 3.2rem;
            color: var(--dark);
            margin-bottom: 25px;
            line-height: 1.2;
        }
        
        .hero h1 span {
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .hero p {
            color: var(--gray);
            font-size: 1.2rem;
            margin-bottom: 35px;
            max-width: 500px;
        }
        
        .hero-btns {
            display: flex;
            gap: 20px;
        }
        
        .hero-image {
            position: relative;
            animation: float 8s ease-in-out infinite;
        }
        
        .hero-image img {
            width: 100%;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0px); }
        }
        
        /* 特色卡片 - 全新设计 */
        .features {
            background-color: var(--white);
            position: relative;
        }
        
        .features::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNDgsMjQ5LDI1MCwwLjEpIi8+PC9wYXR0ZXJuPjwvZGVmcz48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWxsPSJ1cmwoI3BhdHRlcm4pIi8+PC9zdmc+');
            opacity: 0.5;
            z-index: 0;
        }
        
        .features-container {
            position: relative;
            z-index: 1;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 40px 30px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid rgba(0, 0, 0, 0.05);
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--white);
            font-size: 2.2rem;
            box-shadow: 0 10px 20px rgba(67, 97, 238, 0.2);
            transform: rotate(45deg);
            transition: transform 0.3s;
        }
        
        .feature-card:hover .feature-icon {
            transform: rotate(0deg);
        }
        
        .feature-icon i {
            transform: rotate(-45deg);
            transition: transform 0.3s;
        }
        
        .feature-card:hover .feature-icon i {
            transform: rotate(0deg);
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin-bottom: 15px;
        }
        
        .feature-card p {
            color: var(--gray);
            font-size: 1rem;
        }
        
        /* 服务展示 - 全新设计 */
        .services {
            background-color: var(--light);
        }
        
        .services-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 50px;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .tab-btn {
            padding: 14px 30px;
            background-color: transparent;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            color: var(--gray);
            cursor: pointer;
            transition: all 0.3s;
            font-size: 1.05rem;
            position: relative;
            overflow: hidden;
        }
        
        .tab-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0;
            transition: opacity 0.3s;
            z-index: -1;
        }
        
        .tab-btn.active {
            color: var(--white);
            box-shadow: var(--shadow);
        }
        
        .tab-btn.active::before {
            opacity: 1;
        }
        
        .tab-content {
            display: none;
            animation: fadeIn 0.5s ease-in-out;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .tab-content.active {
            display: block;
        }
        
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .service-item {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s;
            position: relative;
        }
        
        .service-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.1) 100%);
            z-index: 1;
        }
        
        .service-item:hover {
            transform: translateY(-10px);
        }
        
        .service-img {
            height: 220px;
            overflow: hidden;
        }
        
        .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .service-item:hover .service-img img {
            transform: scale(1.1);
        }
        
        .service-info {
            padding: 25px;
            position: relative;
            z-index: 2;
        }
        
        .service-info h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .service-info p {
            color: var(--gray);
            margin-bottom: 20px;
        }
        
        /* 关于我们 - 全新设计 */
        .about {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        
        .about::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
        }
        
        .about-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .about-image {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            transform: perspective(1000px) rotateY(-10deg);
            transition: transform 0.5s;
        }
        
        .about-image:hover {
            transform: perspective(1000px) rotateY(0deg);
        }
        
        .about-image img {
            width: 100%;
            display: block;
        }
        
        .about-content h2 {
            font-size: 2.5rem;
            margin-bottom: 25px;
        }
        
        .about-content p {
            opacity: 0.9;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        .about-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        
        .stat-item {
            text-align: center;
            padding: 25px 15px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 5px;
        }
        
        .stat-label {
            opacity: 0.8;
            font-size: 0.95rem;
        }
        
        /* 团队展示 - 全新设计 */
        .team {
            background-color: var(--white);
        }
        
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .team-member {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            text-align: center;
            transition: transform 0.3s;
            position: relative;
        }
        
        .team-member::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(67,97,238,0.1) 100%);
            z-index: 1;
        }
        
        .team-member:hover {
            transform: translateY(-10px);
        }
        
        .member-img {
            height: 280px;
            overflow: hidden;
        }
        
        .member-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .team-member:hover .member-img img {
            transform: scale(1.1);
        }
        
        .member-info {
            padding: 25px;
            position: relative;
            z-index: 2;
        }
        
        .member-info h3 {
            font-size: 1.4rem;
            margin-bottom: 5px;
            color: var(--dark);
        }
        
        .member-info p {
            color: var(--primary);
            margin-bottom: 15px;
            font-weight: 600;
        }
        
        /* 页脚 - 全新设计 */
        .footer {
            background-color: var(--dark);
            color: var(--white);
            padding: 80px 0 30px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-about h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .footer-about p {
            opacity: 0.7;
            margin-bottom: 20px;
        }
        
        .footer-links h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--white);
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            opacity: 0.7;
            transition: opacity 0.3s;
        }
        
        .footer-links a:hover {
            opacity: 1;
            color: var(--primary-light);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            opacity: 0.6;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .section-title h2 {
                font-size: 2.5rem;
            }
        }
        
        @media (max-width: 992px) {
            .hero-container,
            .about-container {
                grid-template-columns: 1fr;
            }
            
            .hero-image {
                order: -1;
                max-width: 600px;
                margin: 0 auto;
            }
            
            .section {
                padding: 80px 0;
            }
            
            .hero {
                padding: 150px 0 80px;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
        }
        
        @media (max-width: 768px) {
            .navbar-container {
                position: relative;
            }
            
            .nav-links {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background-color: var(--white);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                padding: 20px 0;
                transform: translateY(-100%);
                transition: transform 0.3s;
                z-index: 1000;
            }
            
            .nav-links.active {
                transform: translateY(0);
            }
            
            .nav-links li {
                margin: 20px 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .section-title h2 {
                font-size: 2.2rem;
            }
            
            .hero-btns {
                flex-direction: column;
                gap: 15px;
            }
            
            .btn {
                width: 100%;
            }
            
            .about-stats {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .service-grid {
                grid-template-columns: 1fr;
            }
            
            .about-stats {
                grid-template-columns: 1fr;
            }
            
            .footer-container {
                grid-template-columns: 1fr;
            }
        }