:root {
            --primary: #3B82F6;
            --secondary: #10B981;
            --accent: #8B5CF6;
            --light-bg: #F9FAFB;
            --text-dark: #1F2937;
            --text-gray: #6B7280;
            --white: #FFFFFF;
            --shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
            --gradient: linear-gradient(135deg, var(--primary), var(--accent));
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.6;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.1);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            text-decoration: none;
        }
        
        .logo img {
            height: 40px;
            width: auto;
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-links a {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        /* 按钮样式 */
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            z-index: -1;
            transition: all 0.4s ease;
        }
        
        .btn-primary {
            background: var(--gradient);
            color: white;
        }
        
        .btn-primary::before {
            background: linear-gradient(135deg, var(--accent), var(--primary));
        }
        
        .btn-secondary {
            background: white;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        
        .btn-secondary::before {
            background: rgba(59, 130, 246, 0.1);
        }
        
        .btn-tertiary {
            background: var(--secondary);
            color: white;
        }
        
        .btn-tertiary::before {
            background: #059669;
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2);
        }
        
        .btn:hover::before {
            left: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-dark);
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* Banner 区域 */
        .banner {
            padding: 180px 0 120px;
            position: relative;
            overflow: hidden;
        }
        
        .banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.1), transparent 70%);
            z-index: -1;
        }
        
        .banner-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 50px;
        }
        
        .banner-text {
            flex: 1;
            min-width: 300px;
        }
        
        .banner-text h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .typed-text {
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 30px;
            min-height: 35px;
            font-weight: 500;
        }
        
        .banner-text p {
            font-size: 1.1rem;
            color: var(--text-gray);
            margin-bottom: 40px;
            max-width: 600px;
        }
        
        .banner-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        .banner-image {
            flex: 1;
            min-width: 300px;
            text-align: center;
        }
        
        .banner-image img {
            width: 100%;
            max-width: 500px;
            border-radius: 20px;
            box-shadow: var(--shadow);
        }
        
        /* 关于我们区域 */
        .about {
            padding: 120px 0;
            background-color: var(--white);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
            color: var(--text-dark);
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--gradient);
            border-radius: 2px;
        }
        
        .section-title p {
            color: var(--text-gray);
            max-width: 700px;
            margin: 0 auto;
        }
        
        .about-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 50px;
        }
        
        .about-text {
            flex: 1;
            min-width: 300px;
        }
        
        .about-text p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-dark);
        }
        
        .about-image {
            flex: 1;
            min-width: 300px;
            text-align: center;
        }
        
        .about-image img {
            width: 100%;
            max-width: 500px;
            border-radius: 20px;
            box-shadow: var(--shadow);
        }
        
        /* 功能展示区域 */
        .features {
            padding: 120px 0;
            background-color: var(--light-bg);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .feature-card {
            background-color: var(--white);
            border-radius: 15px;
            padding: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(59, 130, 246, 0.1);
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 30px rgba(59, 130, 246, 0.1);
            border-color: rgba(59, 130, 246, 0.2);
        }
        
        .feature-card i {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
            background-color: rgba(59, 130, 246, 0.1);
            width: 70px;
            height: 70px;
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .feature-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-dark);
            line-height: 1.4;
        }
        
        .feature-card p {
            color: var(--text-gray);
            line-height: 1.7;
        }
        
        /* 分隔页 */
        .separator {
            padding: 120px 0;
            background: var(--gradient);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .separator::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        }
        
        .separator-content {
            position: relative;
            z-index: 1;
        }
        
        .separator h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: white;
        }
        
        .separator p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
            color: rgba(255, 255, 255, 0.9);
        }
        
        /* 海报展示区域 */
        .posters {
            padding: 120px 0;
            background-color: var(--white);
        }
        
        .posters-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin-top: 50px;
        }
        
        .poster-card {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
        }
        
        .poster-card:hover {
            transform: translateY(-5px);
        }
        
        .poster-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .poster-card:hover img {
            transform: scale(1.05);
        }
        
        .poster-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
            padding: 30px;
        }
        
        .poster-card h3 {
            font-size: 1.5rem;
            margin-bottom: 10px;
            color: white;
        }
        
        .poster-card p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        
        /* 页脚 */
        footer {
            background-color: var(--light-bg);
            padding: 80px 0 40px;
            border-top: 1px solid rgba(59, 130, 246, 0.1);
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 50px;
            margin-bottom: 50px;
        }
        
        .footer-col h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
            color: var(--text-dark);
        }
        
        .footer-col h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        
        .footer-col p {
            color: var(--text-gray);
            margin-bottom: 20px;
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col ul li {
            margin-bottom: 10px;
        }
        
        .footer-col ul li a {
            color: var(--text-gray);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        
        .contact-info li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .contact-info i {
            color: var(--primary);
        }
        
        .friend-links {
            padding: 20px 0;
            border-top: 1px solid rgba(59, 130, 246, 0.1);
            border-bottom: 1px solid rgba(59, 130, 246, 0.1);
            margin-bottom: 30px;
             text-align: center;
        }
        
        .friend-links a {
            color: var(--text-gray);
            text-decoration: none;
            margin-right: 20px;
            transition: color 0.3s ease;
            display: inline-block;
            margin-bottom: 10px;
        }
        
        .friend-links a:hover {
            color: var(--primary);
        }
        
        .copyright {
            text-align: center;
            color: var(--text-gray);
            font-size: 0.9rem;
           
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .banner-text h1 {
                font-size: 2.8rem;
                font-weight: 900;
            }
            
            .section-title h2,
            .separator h2 {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background-color: white;
                flex-direction: column;
                gap: 0;
                text-align: center;
                box-shadow: 0 10px 10px rgba(0, 0, 0, 0.05);
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links a {
                padding: 15px;
                border-bottom: 1px solid rgba(59, 130, 246, 0.1);
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .banner {
                padding: 150px 0 100px;
            }
            
            .banner-text h1 {
                font-size: 2.2rem;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
            
            .posters-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .banner-text h1 {
                font-size: 1.8rem;
            }
            
            .section-title h2,
            .separator h2 {
                font-size: 1.8rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .friend-links a {
                margin-right: 15px;
                font-size: 0.9rem;
            }
            
            .banner-buttons {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
                text-align: center;
            }
        }