:root {
            --primary: #FFB7C5;
            --primary-dark: #E89AAD;
            --secondary: #FFF5F7;
            --accent: #D4AF37;
            --accent-light: #F5E6C8;
            --text-dark: #2D2D2D;
            --text-light: #666666;
            --text-muted: #999999;
            --white: #FFFFFF;
            --bg-cream: #FDF8F5;
            --shadow-soft: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-medium: 0 8px 40px rgba(0,0,0,0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: var(--bg-cream);
            color: var(--text-dark);
            line-height: 1.8;
            overflow-x: hidden;
        }

        /* 导航栏 */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

        nav.scrolled {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-soft);
        }

        .nav-logo {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            text-decoration: none;
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
        }

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

        /* 英雄区 */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--white) 50%, var(--bg-cream) 100%);
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.4;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(255,183,197,0.1) 0%, rgba(253,248,245,0.8) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 900px;
            padding: 2rem;
        }

        .hero-badge {
            display: inline-block;
            padding: 0.5rem 1.5rem;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 50px;
            margin-bottom: 1.5rem;
            letter-spacing: 0.1em;
        }

        .hero-title {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(3rem, 8vw, 5rem);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }

        .hero-title span {
            color: var(--primary-dark);
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-light);
            margin-bottom: 2.5rem;
            font-weight: 300;
        }

        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 3rem;
            margin-bottom: 2.5rem;
            flex-wrap: wrap;
        }

        .meta-item {
            text-align: center;
        }

        .meta-value {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-dark);
        }

        .meta-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255,183,197,0.4);
        }

        .btn-secondary {
            background: var(--white);
            color: var(--text-dark);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--secondary);
            transform: translateY(-2px);
        }

        /* 樱花动画 */
        .sakura-container {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            pointer-events: none;
            overflow: hidden;
            z-index: 1;
        }

        .sakura {
            position: absolute;
            width: 15px;
            height: 15px;
            background: var(--primary);
            border-radius: 50% 0 50% 50%;
            opacity: 0.6;
            animation: fall linear infinite;
        }

        @keyframes fall {
            0% {
                transform: translateY(-10vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 0.6;
            }
            90% {
                opacity: 0.6;
            }
            100% {
                transform: translateY(100vh) rotate(720deg);
                opacity: 0;
            }
        }

        /* 关于本书 */
        .section {
            padding: 6rem 2rem;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            color: var(--primary-dark);
            letter-spacing: 0.2em;
            text-transform: uppercase;
            margin-bottom: 1rem;
        }

        .section-title {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(2rem, 5vw, 2.5rem);
            font-weight: 600;
            color: var(--text-dark);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .about-image {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-medium);
        }

        .about-image img {
            width: 100%;
            height: 500px;
            object-fit: cover;
            display: block;
        }

        .about-image::after {
            content: '';
            position: absolute;
            top: 20px;
            left: 20px;
            right: -20px;
            bottom: -20px;
            border: 3px solid var(--primary);
            border-radius: 20px;
            z-index: -1;
        }

        .about-content h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.75rem;
            margin-bottom: 1.5rem;
            color: var(--text-dark);
        }

        .about-content p {
            color: var(--text-light);
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }

        .quote {
            padding: 1.5rem 2rem;
            background: var(--secondary);
            border-left: 4px solid var(--primary);
            border-radius: 0 12px 12px 0;
            margin: 2rem 0;
            font-style: italic;
            color: var(--text-dark);
        }

        /* 人物介绍 */
        .characters {
            background: var(--white);
        }

        .characters-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .character-card {
            background: var(--bg-cream);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .character-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-medium);
        }

        .character-name {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }

        .character-role {
            font-size: 0.9rem;
            color: var(--primary-dark);
            margin-bottom: 1rem;
        }

        .character-desc {
            font-size: 0.95rem;
            color: var(--text-light);
        }

        /* 风景展示 */
        .scenery {
            background: linear-gradient(180deg, var(--bg-cream) 0%, var(--secondary) 100%);
        }

        .scenery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .scenery-item {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            aspect-ratio: 4/3;
        }

        .scenery-item:first-child {
            grid-column: span 2;
            grid-row: span 2;
            aspect-ratio: auto;
        }

        .scenery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scenery-item:hover img {
            transform: scale(1.05);
        }

        .scenery-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 2rem;
            background: linear-gradient(transparent, rgba(0,0,0,0.7));
            color: var(--white);
        }

        .scenery-title {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.25rem;
            font-weight: 600;
        }

        .scenery-desc {
            font-size: 0.9rem;
            opacity: 0.9;
        }

        /* 章节列表 */
        .chapters {
            background: var(--white);
        }

        .chapters-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }

        .chapter-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.5rem;
            background: var(--bg-cream);
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .chapter-item:hover {
            border-color: var(--primary);
            transform: translateX(5px);
        }

        .chapter-num {
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--white);
            border-radius: 12px;
            font-family: 'Noto Serif SC', serif;
            font-weight: 600;
            flex-shrink: 0;
        }

        .chapter-info h4 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.1rem;
            margin-bottom: 0.25rem;
            color: var(--text-dark);
        }

        .chapter-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 下载按钮 */
        .download-section {
            background: var(--secondary);
            padding: 4rem 2rem;
            text-align: center;
        }

        .download-section .section-title {
            margin-bottom: 2rem;
        }

        .download-buttons {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }

        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1.25rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 500;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(255,183,197,0.5);
        }

        .download-btn.primary {
            background: linear-gradient(135deg, var(--accent) 0%, #B8960C 100%);
            box-shadow: 0 8px 30px rgba(212,175,55,0.3);
        }

        .download-btn.primary:hover {
            box-shadow: 0 12px 40px rgba(212,175,55,0.5);
        }

        .version-note {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 阅读器 */
        .reader {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--white);
            z-index: 2000;
            overflow: hidden;
        }

        .reader.active {
            display: flex;
            flex-direction: column;
        }

        .reader-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
            background: var(--white);
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }

        .reader-title {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.25rem;
            font-weight: 600;
        }

        .reader-close {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: none;
            background: var(--secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            transition: all 0.3s ease;
        }

        .reader-close:hover {
            background: var(--primary);
            color: var(--white);
        }

        .reader-content {
            flex: 1;
            overflow-y: auto;
            padding: 3rem 2rem;
            max-width: 800px;
            margin: 0 auto;
        }

        .reader-content p {
            font-size: 1.1rem;
            line-height: 2;
            margin-bottom: 1.5rem;
            text-indent: 2em;
        }

        .reader-content h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.5rem;
            margin: 2rem 0 1rem;
            color: var(--text-dark);
        }

        .reader-content h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.25rem;
            margin: 1.5rem 0 1rem;
            color: var(--text-dark);
        }

        .chapter-nav {
            display: flex;
            justify-content: space-between;
            padding: 1rem 2rem;
            background: var(--bg-cream);
            border-top: 1px solid rgba(0,0,0,0.1);
        }

        .chapter-nav button {
            padding: 0.75rem 1.5rem;
            border: 1px solid var(--primary);
            background: var(--white);
            border-radius: 8px;
            cursor: pointer;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .chapter-nav button:hover {
            background: var(--primary);
            color: var(--white);
        }

        .chapter-nav button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* 页脚 */
        footer {
            background: var(--text-dark);
            color: var(--white);
            padding: 4rem 2rem;
            text-align: center;
        }

        .footer-content h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        .footer-content p {
            color: rgba(255,255,255,0.7);
            margin-bottom: 0.5rem;
        }

        .footer-divider {
            width: 60px;
            height: 3px;
            background: var(--primary);
            margin: 2rem auto;
            border-radius: 2px;
        }

        .author-info {
            margin: 1.5rem 0;
        }

        .author-info p {
            color: rgba(255,255,255,0.8);
            margin-bottom: 0.5rem;
        }

        .copyright {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        /* 响应式 */
        @media (max-width: 900px) {
            .about-grid {
                grid-template-columns: 1fr;
            }

            .about-image::after {
                display: none;
            }

            .scenery-grid {
                grid-template-columns: 1fr;
            }

            .scenery-item:first-child {
                grid-column: span 1;
                grid-row: span 1;
            }

            .nav-links {
                display: none;
            }
        }

        /* 加载动画 */
        .loading {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 3rem;
        }

        .loading-spinner {
            width: 40px;
            height: 40px;
            border: 3px solid var(--secondary);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* 淡入动画 */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }

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