/* CSS变量 - 主题配色 */
:root {
    --primary-color: #85cc2a;
    --secondary-color: #666f1d;
    --accent-color: #dda979;
    --neutral-color: #6a665a;
    --text-primary: #2c2c2c;
    --text-secondary: #666666;
    --text-light: #ffffff;
    --background-light: #ffffff;
    --background-dark: #f8f9fa;
    --background-darker: #e9ecef;
    --border-color: #dee2e6;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.2);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--neutral-color));
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 12px;
    --border-radius-small: 8px;
    --border-radius-large: 20px;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-light);
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用样式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-fast);
}

/* 章节标题 */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.section-title i {
    color: var(--primary-color);
    font-size: 2.2rem;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-small);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.nav-link:hover {
    background: var(--gradient-primary);
    color: var(--text-light);
    transform: translateY(-2px);
}

.nav-link i {
    font-size: 0.9rem;
}

/* 移动端菜单 */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 3px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* 英雄区 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-dark) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.05;
    transform: skewX(-15deg);
    transform-origin: top;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 400;
    font-style: italic;
}

.hero-version {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.version-badge {
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
}

.release-date {
    background: var(--background-darker);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.feature-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.hero-downloads {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.download-btn.primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-medium);
}

.download-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.download-btn.secondary {
    background: var(--background-darker);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.download-btn.secondary:hover {
    background: var(--gradient-accent);
    color: var(--text-light);
    border-color: transparent;
}

.download-btn span {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.download-btn small {
    font-size: 0.8rem;
    opacity: 0.8;
}

.download-btn i {
    margin-right: 0.5rem;
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-heavy);
    transition: var(--transition-slow);
}

.hero-image img:hover {
    transform: scale(1.02);
}

/* 最新动态 */
.news {
    padding: 80px 0;
    background: var(--background-light);
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
}

.news-item {
    background: var(--background-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.news-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: var(--transition-normal);
}

.news-item:hover::before {
    transform: scaleY(1);
}

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

.news-item.featured {
    background: var(--gradient-primary);
    color: var(--text-light);
    grid-row: span 2;
}

.news-item.featured::before {
    background: var(--text-light);
}

.news-date {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 1rem;
    font-weight: 500;
}

.news-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.news-excerpt {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    opacity: 0.9;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.2);
    color: inherit;
    transition: var(--transition-fast);
}

.news-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateX(5px);
}

.news-item:not(.featured) .news-link {
    background: var(--gradient-primary);
    color: var(--text-light);
}

.news-item:not(.featured) .news-link:hover {
    background: var(--gradient-accent);
}

/* 游戏截图 */
.gallery {
    padding: 80px 0;
    background: var(--background-dark);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/9;
    background: var(--background-darker);
    box-shadow: var(--shadow-light);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.gallery-overlay i {
    font-size: 2rem;
    color: var(--text-light);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* 图片弹窗 */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s;
}

.lightbox-content {
    position: relative;
    margin: auto;
    display: block;
    width: 90%;
    max-width: 1000px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-content img {
    width: 100%;
    border-radius: var(--border-radius);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--text-light);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--primary-color);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 用户评价 */
.reviews {
    padding: 80px 0;
    background: var(--background-light);
}

.reviews-stats {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    align-items: center;
}

.rating-overall {
    text-align: center;
    padding: 2rem;
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.rating-stars {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #ffc107;
}

.rating-count {
    font-size: 0.9rem;
    opacity: 0.9;
}

.rating-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag {
    background: var(--background-darker);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.tag:hover {
    background: var(--gradient-accent);
    color: var(--text-light);
    border-color: transparent;
}

.reviews-carousel {
    position: relative;
    overflow: hidden;
    margin-bottom: 2rem;
}

.review-item {
    display: none;
    background: var(--background-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
}

.review-item.active {
    display: block;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.review-content {
    text-align: center;
}

.review-stars {
    font-size: 1.2rem;
    color: #ffc107;
    margin-bottom: 1rem;
}

.review-text {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-style: italic;
}

.review-author {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.review-author strong {
    color: var(--text-primary);
    font-weight: 600;
}

.review-author span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--text-light);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition-fast);
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

/* 版本历史 */
.versions {
    padding: 80px 0;
    background: var(--background-dark);
}

.versions-timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.version-item {
    background: var(--background-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.version-item:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.version-header {
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.version-number {
    font-size: 1.5rem;
    font-weight: 700;
}

.version-date {
    font-weight: 500;
}

.version-size {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.version-content {
    padding: 2rem;
}

.version-content h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.version-content ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.version-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.version-platforms {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.platform {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--background-darker);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
}

.platform i {
    color: var(--primary-color);
}

.version-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
}

.version-download:hover {
    background: var(--gradient-accent);
    transform: translateY(-2px);
}

/* 常见问题 */
.faq {
    padding: 80px 0;
    background: var(--background-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--background-light);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-medium);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    cursor: pointer;
    background: var(--background-light);
    transition: var(--transition-fast);
    font-weight: 600;
    color: var(--text-primary);
}

.faq-question:hover {
    background: var(--background-dark);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    background: var(--background-dark);
}

.faq-answer.active {
    max-height: 1000px;
}

.faq-answer p {
    padding: 1.5rem 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 底部 */
.footer {
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

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

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-light);
    opacity: 0.8;
    transition: var(--transition-fast);
    font-weight: 400;
}

.footer-section a:hover {
    opacity: 1;
    color: var(--accent-color);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.1rem;
}

.footer-logo img {
    width: 28px;
    height: 28px;
    border-radius: var(--border-radius-small);
}

.footer-copyright {
    text-align: right;
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-copyright a {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--text-light);
    font-size: 1.2rem;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
    z-index: 1000;
    transition: var(--transition-fast);
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--background-light);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-medium);
        border-top: 1px solid var(--border-color);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-features {
        display: flex;
        flex-direction: row;
        gap: 0.5rem;
        justify-content: space-between;
    }
    
    .feature-item {
        flex: 1;
        flex-direction: column;
        text-align: center;
        gap: 0.3rem;
    }
    
    .feature-item span {
        font-size: 0.85rem;
        line-height: 1.2;
    }
    
    .hero-downloads {
        flex-direction: column;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-copyright {
        text-align: center;
    }
    
    .version-header {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .lightbox-content {
        width: 95%;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .news-item,
    .version-content,
    .faq-answer p {
        padding: 1.5rem;
    }
    
    .version-header {
        padding: 1rem 1.5rem;
    }
    
    .download-btn {
        padding: 0.75rem 1.5rem;
    }
}