/* 全局重置与变量 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #667eea;
    --color-secondary: #764ba2;
    --color-accent: #00d4ff;
    --color-dark: #1a1a3e;
    --color-dark-light: #16213e;
    --color-dark-lighter: #0f3460;
    --color-text: #ffffff;
    --color-text-secondary: #b8b8d4;
    --color-text-muted: #8b8ba7;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #00d4ff 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(26, 26, 62, 0.9) 0%, rgba(22, 33, 62, 0.95) 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-dark);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 导航栏 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 62, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(26, 26, 62, 0.98);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo-wrapper {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
}

.logo-link:hover {
    opacity: 0.9;
}

.logo-icon {
    width: 45px;
    height: 45px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-navigation {
    display: flex;
    align-items: center;
}

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

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-text);
}

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

.download-btn {
    background: var(--gradient-primary);
    color: var(--color-text);
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    white-space: nowrap;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    width: 32px;
    height: 32px;
    justify-content: center;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--color-text);
    border-radius: 3px;
    transition: var(--transition);
}

/* 主横幅 */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

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

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.25);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

.hero-features {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.badge-icon {
    font-size: 1.2rem;
}

.scroll-down {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    z-index: 1;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--gradient-primary);
    margin: 0.5rem auto;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -4px;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
}

/* 通用区块样式 */
.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 游戏评测 */
.reviews-section {
    padding: 6rem 0;
    background: var(--color-dark-light);
}

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

.review-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.review-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.review-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.review-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.review-card:hover .review-image img {
    transform: scale(1.1);
}

.review-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: var(--color-text);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
}

.review-content {
    padding: 2rem;
}

.review-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    line-height: 1.4;
}

.review-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.review-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.review-rating {
    color: var(--color-accent);
    font-weight: 600;
}

.review-date {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.review-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--color-text);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.review-link:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* 攻略指南 */
.guides-section {
    padding: 6rem 0;
    background: var(--color-dark);
}

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

.guide-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.guide-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-secondary);
}

.guide-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.guide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.guide-card:hover .guide-image img {
    transform: scale(1.1);
}

.guide-content {
    padding: 2rem;
}

.guide-category {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--color-secondary);
    color: var(--color-text);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.guide-title {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    line-height: 1.4;
}

.guide-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 0.95rem;
}

.guide-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.guide-link:hover {
    background: var(--color-accent);
    color: var(--color-dark);
    transform: translateX(5px);
}

/* 游戏下载 */
.download-section {
    padding: 6rem 0;
    background: var(--color-dark-light);
}

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

.download-text {
    padding-right: 2rem;
}

.download-features {
    list-style: none;
    margin: 2rem 0;
    padding: 0;
}

.download-features li {
    padding: 0.75rem 0;
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.download-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.download-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ACG资讯 */
.news-section {
    padding: 6rem 0;
    background: var(--color-dark);
}

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

.news-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.news-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 2rem;
}

.news-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--color-accent);
    color: var(--color-dark);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    line-height: 1.4;
}

.news-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.news-date {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    display: block;
}

/* 社区互动 */
.community-section {
    padding: 6rem 0;
    background: var(--color-dark-light);
}

.community-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.community-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.community-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.community-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
}

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

.community-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* 关于平台 */
.about-section {
    padding: 6rem 0;
    background: var(--color-dark);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 4rem;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    display: block;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* 页脚 */
.site-footer {
    background: var(--color-dark-light);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column {
    color: var(--color-text-secondary);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
}

.footer-column p {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.footer-column a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--color-accent);
}

.footer-column h4 {
    margin-bottom: 1.5rem;
    color: var(--color-text);
    font-size: 1.1rem;
}

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

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

/* 友情链接 */
.footer-links {
    margin-bottom: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links h4 {
    color: var(--color-text);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    max-width: 1000px;
    margin: 0 auto;
}

.friend-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    font-size: 0.95rem;
}

.friend-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--color-text);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .download-content {
        grid-template-columns: 1fr;
    }
    
    .download-text {
        padding-right: 0;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-navigation {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: rgba(26, 26, 62, 0.98);
        backdrop-filter: blur(20px);
        padding: 2rem;
        transition: var(--transition);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .main-navigation.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
    }
    
    .reviews-grid,
    .guides-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .community-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .friend-link {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .header-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.875rem 2rem;
        font-size: 0.95rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .community-features {
        grid-template-columns: 1fr;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}