* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --red: #FF4444;
            --dark-red: #CC0000;
            --yellow: #FFD700;
            --black: #1a1a1a;
            --gray: #666;
            --light-gray: #f5f5f5;
            --white: #ffffff;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--black);
            overflow-x: hidden;
        }

        /* 导航栏 */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0,0,0,0.1);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--red);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo::before {
            content: "📚";
            font-size: 2rem;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            color: var(--black);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--red);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--red);
            transition: width 0.3s;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .download-btn {
            background: linear-gradient(135deg, var(--red), var(--dark-red));
            color: white;
            padding: 0.6rem 1.5rem;
            border-radius: 25px;
            text-decoration: none;
            font-weight: bold;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(255, 68, 68, 0.4);
        }

        /* 英雄区域 */
        .hero {
            margin-top: 80px;
            padding: 4rem 2rem;
            background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, var(--yellow) 0%, transparent 70%);
            opacity: 0.1;
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
        }

        .hero-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--black), var(--red));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: slideInLeft 0.8s ease;
        }

        @keyframes slideInLeft {
            from {
                opacity: 0;
                transform: translateX(-50px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .hero-content p {
            font-size: 1.2rem;
            color: var(--gray);
            margin-bottom: 2rem;
            animation: slideInLeft 0.8s ease 0.2s both;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            animation: slideInLeft 0.8s ease 0.4s both;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--red), var(--dark-red));
            color: white;
            padding: 1rem 2rem;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(255, 68, 68, 0.4);
        }

        .btn-secondary {
            background: white;
            color: var(--red);
            padding: 1rem 2rem;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            border: 2px solid var(--red);
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background: var(--red);
            color: white;
            transform: translateY(-3px);
        }

        .hero-image {
            position: relative;
            animation: slideInRight 0.8s ease;
        }

        @keyframes slideInRight {
            from {
                opacity: 0;
                transform: translateX(50px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .phone-mockup {
            width: 100%;
            max-width: 400px;
            height: 600px;
            background: linear-gradient(135deg, var(--black), #333);
            border-radius: 40px;
            padding: 10px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            position: relative;
            transform: perspective(1000px) rotateY(-10deg);
            transition: transform 0.3s;
        }

        .phone-mockup:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        .phone-screen {
            width: 100%;
            height: 100%;
            background: white;
            border-radius: 30px;
            overflow: hidden;
            position: relative;
        }

        .app-preview {
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, var(--red) 0%, var(--yellow) 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
        }

        .app-preview h3 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .comic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            padding: 20px;
        }

        .comic-thumb {
            background: white;
            border-radius: 10px;
            height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }

        /* 功能特色 */
        .features {
            padding: 5rem 2rem;
            background: white;
        }

        .features-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--black);
        }

        .section-subtitle {
            text-align: center;
            color: var(--gray);
            font-size: 1.1rem;
            margin-bottom: 3rem;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: var(--light-gray);
            padding: 2rem;
            border-radius: 20px;
            text-align: center;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--red), var(--yellow));
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }

        .feature-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            display: inline-block;
            animation: bounce 2s infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .feature-card:nth-child(2) .feature-icon {
            animation-delay: 0.2s;
        }

        .feature-card:nth-child(3) .feature-icon {
            animation-delay: 0.4s;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--black);
        }

        .feature-card p {
            color: var(--gray);
            line-height: 1.6;
        }

        /* 漫画展示 */
        .comics-showcase {
            padding: 5rem 2rem;
            background: linear-gradient(135deg, var(--light-gray), white);
        }

        .comics-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .comics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .comic-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            transition: all 0.3s;
            cursor: pointer;
        }

        .comic-card:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .comic-cover {
            width: 100%;
            height: 280px;
            background: linear-gradient(135deg, var(--red), var(--yellow));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4rem;
            position: relative;
            overflow: hidden;
        }

        .comic-cover::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
            transform: rotate(45deg);
            transition: all 0.5s;
        }

        .comic-card:hover .comic-cover::after {
            animation: shine 0.5s ease;
        }

        @keyframes shine {
            0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
        }

        .comic-info {
            padding: 1rem;
        }

        .comic-title {
            font-weight: bold;
            color: var(--black);
            margin-bottom: 0.5rem;
        }

        .comic-meta {
            display: flex;
            justify-content: space-between;
            color: var(--gray);
            font-size: 0.9rem;
        }

        .comic-badge {
            background: var(--yellow);
            color: var(--black);
            padding: 0.2rem 0.5rem;
            border-radius: 10px;
            font-size: 0.8rem;
            font-weight: bold;
        }

        /* 下载区域 */
        .download-section {
            padding: 5rem 2rem;
            background: linear-gradient(135deg, var(--red), var(--dark-red));
            color: white;
            text-align: center;
        }

        .download-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .download-section h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .download-section p {
            font-size: 1.2rem;
            margin-bottom: 3rem;
            opacity: 0.9;
        }

        .download-options {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .download-option {
            background: white;
            color: var(--black);
            padding: 1.5rem 2rem;
            border-radius: 20px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all 0.3s;
            min-width: 200px;
        }

        .download-option:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }

        .download-icon {
            font-size: 2rem;
        }

        .download-text {
            text-align: left;
        }

        .download-text strong {
            display: block;
            font-size: 1.1rem;
        }

        .download-text span {
            font-size: 0.9rem;
            color: var(--gray);
        }

        /* 页脚 */
        footer {
            background: var(--black);
            color: white;
            padding: 3rem 2rem 1rem;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            color: var(--yellow);
            margin-bottom: 1rem;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section a {
            color: white;
            text-decoration: none;
            opacity: 0.8;
            transition: opacity 0.3s;
            line-height: 2;
        }

        .footer-section a:hover {
            opacity: 1;
            color: var(--yellow);
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }

        .social-link {
            width: 40px;
            height: 40px;
            background: var(--red);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s;
        }

        .social-link:hover {
            background: var(--yellow);
            color: var(--black);
            transform: translateY(-3px);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            opacity: 0.7;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero-content h1 {
                font-size: 2.5rem;
            }

            .hero-buttons {
                justify-content: center;
            }

            .phone-mockup {
                max-width: 300px;
                height: 450px;
                margin: 0 auto;
            }

            .comics-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }

            .download-options {
                flex-direction: column;
                align-items: center;
            }
        }

        /* 动画效果 */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 滚动条样式 */
        ::-webkit-scrollbar {
            width: 10px;
        }

        ::-webkit-scrollbar-track {
            background: var(--light-gray);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--red);
            border-radius: 5px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--dark-red);
        }