/* 游戏详情页面CSS性能优化完整版 */
/* 基础样式重置 - 优化版本 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4A6CF7;
    --primary-dark: #3a5ae5;
    --secondary-color: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 性能相关变量 */
    --animation-duration: 0.3s;
    --fast-animation: 0.15s;
    --slow-animation: 0.5s;
    --content-visibility: auto;
    
    /* 语义化颜色 */
    --success-color: #2ecc71;
    --warning-color: #f59e0b;
    --error-color: #e74c3c;
    
    /* 间距系统 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
}

[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-dark: #6366f1;
    --secondary-color: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --border-color: #334155;
}

body {
    font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    
    /* 性能优化属性 */
    text-rendering: optimizeSpeed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 导航栏性能优化 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    
    /* 性能优化 */
    will-change: transform;
    transform: translateZ(0);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    
    /* 性能优化 */
    content-visibility: auto;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links a {
    margin-left: var(--space-lg);
    color: goldenrod;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

/* 主内容区域优化 */
.game-main {
    position: relative;
    min-height: 100vh;
    
    /* 性能优化 */
    contain: layout style paint;
}

/* 封面背景优化 */
.cover-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 70vh;
    overflow: hidden;
    
    /* 性能优化 */
    will-change: transform;
    transform: translateZ(0);
}

.background-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.4);
    
    /* 性能优化 */
    background-color: var(--bg-secondary);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--bg-primary) 100%
    );
}

/* 游戏内容优化 */
.game-content {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem var(--space-lg) var(--space-lg);
    
    /* 性能优化 */
    transform: translateZ(0);
}

/* 游戏头部信息优化 */
.game-header {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
    align-items: start;
    
    /* 性能优化 */
    content-visibility: auto;
}

.cover-container {
    position: relative;
}

.game-cover {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    transition: transform var(--animation-duration) ease, box-shadow var(--animation-duration) ease;
    
    /* 性能优化 */
    will-change: transform;
    backface-visibility: hidden;
}

.game-cover:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.game-info {
    padding-top: var(--space-sm);
}

.game-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.meta-label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 80px;
}

.meta-value {
    font-weight: 500;
}

.rating-item {
    align-items: center;
}

.rating-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.rating-stars {
    display: flex;
    gap: 2px;
}

.star {
    color: #cbd5e1;
    font-size: 1.1rem;
}

.star.filled {
    color: #fbbf24;
}

/* VNDB 链接样式优化 */
.vndb-link {
    margin-left: var(--space-xs);
    color: var(--text-secondary);
    transition: var(--transition);
    opacity: 0.7;
    position: relative;
    display: inline-flex;
    align-items: center;
}

.vndb-link:hover {
    color: var(--primary-color);
    opacity: 1;
}

.vndb-link svg {
    vertical-align: middle;
}

/* 平台和标签优化 */
.platforms, .tags-section {
    margin-bottom: var(--space-md);
}

.section-label {
    display: block;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.platform-tags, .tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.platform-tag, .game-tag {
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.platform-tag:hover, .game-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* 页面导航优化 */
.page-navigation {
    display: flex;
    gap: 0;
    margin-top: var(--space-lg);
    padding: 0;
    border-bottom: 2px solid var(--border-color);
    background: transparent;
}

.nav-btn {
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

.nav-btn:hover {
    background: rgba(74, 108, 247, 0.05);
    color: var(--primary-color);
}

.nav-btn.active {
    background: transparent;
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* 页面内容优化 */
.page-content {
    margin-top: var(--space-lg);
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: slideInUp 0.4s ease-out;
    
    /* 性能优化 */
    will-change: transform, opacity;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 20px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translate3d(0, 10px, 0); 
    }
    to { 
        opacity: 1; 
        transform: translate3d(0, 0, 0); 
    }
}

/* 内容区块通用样式优化 */
.description-section, .screenshots-section, .trailer-section, 
.links-section, .download-section, .additional-links-section,
.review-section, .reviews-list-section {
    margin-bottom: var(--space-xl);
    transition: var(--transition);
}

.description-section:hover, .screenshots-section:hover, .trailer-section:hover, 
.links-section:hover, .download-section:hover, .additional-links-section:hover,
.review-section:hover, .reviews-list-section:hover {
    transform: translateY(-2px);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* 游戏介绍页面优化 */
.description-section {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.description-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.description-content p {
    margin-bottom: var(--space-md);
    text-align: justify;
}

/* 截图网格优化 */
.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
    
    /* 性能优化 */
    content-visibility: auto;
    contain-intrinsic-size: 0 500px;
}

.screenshot-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--fast-animation) ease, box-shadow var(--fast-animation) ease;
    cursor: pointer;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    
    /* 性能优化 */
    will-change: transform;
    backface-visibility: hidden;
}

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

.screenshot-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
    
    /* 性能优化 */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* 视频容器优化 */
.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    background: #000;
    cursor: pointer;
    
    /* 性能优化 */
    contain: layout style paint;
}

.video-placeholder {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
}

.video-placeholder video {
    width: 100%;
    height: auto;
    display: block;
    border: none !important;
    outline: none !important;
    border-radius: 12px;
    background: #000;
}

.video-embed-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    border-radius: 12px;
    overflow: hidden;
}

.video-embed-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none !important;
    outline: none !important;
    border-radius: 12px;
    background: #000;
}

.video-placeholder iframe {
    width: 100%;
    height: 400px;
    border: none !important;
    outline: none !important;
    border-radius: 12px;
    background: #000;
}

.video-placeholder.playing .video-poster {
    opacity: 0;
    pointer-events: none;
    display: none;
}

/* 官网与下载页面优化 */
.links-section, .download-section, .additional-links-section {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.website-link-container {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--border-color);
    margin-bottom: var(--space-md);
}

.official-website-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: var(--space-sm);
    font-size: 1rem;
}

.official-website-link:hover {
    background: var(--primary-dark);
}

.website-url {
    color: var(--text-secondary);
    font-family: 'Monaco', 'Consolas', monospace;
    background: rgba(0, 0, 0, 0.05);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
    display: inline-block;
    word-break: break-all;
    font-size: 0.9rem;
}

/* 下载链接样式优化 */
.download-links {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.download-dropdown {
    position: relative;
    display: inline-block;
    margin-bottom: var(--space-md);
}

.download-main-button {
    --width: 220px;
    --height: 60px;
    --button-color: #4A6CF7;
    width: var(--width);
    height: var(--height);
    background: var(--button-color);
    position: relative;
    text-align: center;
    border-radius: 0.45em;
    font-family: inherit;
    transition: all var(--animation-duration);
    cursor: pointer;
    box-shadow: var(--shadow);
    border: none;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    
    /* 性能优化 */
    will-change: transform;
    transform: translateZ(0);
}

.download-main-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.download-main-button .icon {
    transition: transform var(--animation-duration) ease;
}

.download-main-button.open .icon {
    transform: rotate(180deg);
}

.download-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    margin-top: var(--space-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--animation-duration) ease;
    z-index: 100;
    max-height: 300px;
    overflow-y: auto;
}

.download-dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.download-option {
    display: flex;
    align-items: center;
    padding: var(--space-sm) 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}

.download-option:last-child {
    border-bottom: none;
}

.download-option:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.download-option .option-icon {
    margin-right: 0.75rem;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-option .option-info {
    flex: 1;
}

.download-option .option-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.download-option .option-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

.download-option .option-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: var(--space-xs);
}

.download-option.pc .option-badge {
    background: #4A6CF7;
}

.download-option.mobile .option-badge {
    background: var(--success-color);
}

.download-option.other .option-badge {
    background: #9b59b6;
}

.no-download-options {
    padding: var(--space-md);
    text-align: center;
    color: var(--text-secondary);
}

.no-download-options svg {
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.download-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--bg-primary);
    border-radius: var(--radius);
    margin-top: var(--space-sm);
    border: 1px solid var(--border-color);
}

.download-info p {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 相关链接优化 */
.additional-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.additional-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 1.25rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    font-weight: 500;
}

.additional-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.steam-link:hover {
    background: #1b2838;
}

.dlc-link:hover {
    background: #9b59b6;
}

.wiki-link:hover {
    background: #3498db;
}

/* 无内容状态 */
.no-link, .no-download, .no-additional-links, .no-trailer {
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 2px dashed var(--border-color);
}

.no-link svg, .no-download svg, .no-trailer svg {
    margin-bottom: var(--space-sm);
    opacity: 0.5;
}

.no-additional-links {
    text-align: center;
    padding: var(--space-lg);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-radius: var(--radius);
}

/* 游戏评价页面优化 */
.review-section {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.review-editor {
    background: var(--bg-primary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    margin-bottom: 0;
}

.review-textarea {
    width: 100%;
    min-height: 120px;
    padding: var(--space-sm);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.6;
    resize: vertical;
    transition: var(--transition);
}

.review-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.review-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-color);
}

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

.char-count {
    color: var(--primary-color);
    font-weight: 600;
}

.review-submit {
    padding: 0.75rem 1.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.review-submit:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.review-submit:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* 评价列表优化 */
.reviews-list-section {
    background: var(--bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.review-placeholder {
    text-align: center;
    padding: 2.5rem var(--space-md);
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 2px dashed var(--border-color);
}

.review-placeholder svg {
    margin-bottom: var(--space-sm);
    opacity: 0.5;
}

/* 单个评价项优化 */
.review-item {
    background: var(--bg-primary);
    padding: var(--space-md);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow);
    transition: transform var(--fast-animation) ease, box-shadow var(--fast-animation) ease;
    
    /* 性能优化 */
    will-change: transform;
    content-visibility: auto;
    contain-intrinsic-size: 0 200px;
}

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

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.review-author {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}

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

.review-content {
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
    white-space: pre-wrap;
    font-size: 1rem;
}

.review-stats {
    margin-bottom: var(--space-sm);
}

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

.review-actions {
    display: flex;
    gap: var(--space-sm);
}

.review-action {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
    padding: var(--space-xs) 0.75rem;
    border-radius: 6px;
}

.review-action:hover {
    background: rgba(74, 108, 247, 0.1);
    color: var(--primary-color);
}

.review-action.liked {
    color: var(--primary-color);
}

/* 回复功能样式优化 */
.reply-section {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-color);
    display: none;
}

.reply-textarea {
    width: 100%;
    min-height: 80px;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    resize: vertical;
    margin-bottom: var(--space-xs);
    transition: var(--transition);
}

.reply-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.1);
}

.reply-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reply-counter {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.reply-cancel, .reply-submit {
    padding: var(--space-xs) var(--space-sm);
    border: none;
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.reply-cancel {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    margin-right: var(--space-xs);
}

.reply-cancel:hover {
    background: var(--border-color);
}

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

.reply-submit:hover {
    background: var(--primary-dark);
}

.reply-submit:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
}

/* 回复列表优化 */
.replies-list {
    margin-top: var(--space-sm);
    padding-left: var(--space-sm);
    border-left: 2px solid var(--border-color);
}

.reply-item {
    background: rgba(74, 108, 247, 0.05);
    padding: var(--space-sm);
    border-radius: 6px;
    margin-bottom: var(--space-xs);
}

.reply-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.reply-author {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.reply-date {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.reply-content {
    color: var(--text-primary);
    font-size: 0.875rem;
    line-height: 1.5;
    white-space: pre-wrap;
}

.reply-actions {
    margin-top: var(--space-xs);
}

.reply-action {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.75rem;
    transition: var(--transition);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.reply-action:hover {
    background: rgba(74, 108, 247, 0.1);
    color: var(--primary-color);
}

.reply-action.liked {
    color: var(--primary-color);
}

/* 消息提示优化 */
.message-toast {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 12px 20px;
    background: var(--success-color);
    color: white;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10000;
    font-size: 14px;
    transform: translateX(100%);
    transition: transform var(--animation-duration) ease;
    
    /* 性能优化 */
    will-change: transform;
}

.message-toast.message-error {
    background: var(--error-color);
}

.message-toast.message-success {
    background: var(--success-color);
}

/* 图片预览模态框优化 */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    cursor: zoom-out;
    
    /* 性能优化 */
    will-change: opacity;
    transform: translateZ(0);
}

.image-modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
    
    /* 性能优化 */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* 页脚优化 */
.site-footer {
    background: var(--bg-secondary);
    padding: var(--space-lg) 0;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
    color: var(--text-secondary);
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    .game-header {
        grid-template-columns: 1fr;
        text-align: center;
        
        /* 性能优化 */
        content-visibility: auto;
    }
    
    .cover-container {
        max-width: 250px;
        margin: 0 auto;
    }
    
    .game-title {
        font-size: 2.5rem;
        
/* 性能优化 - 避免复杂的渐变效果 */
background: none;
-webkit-background-clip: initial;
background-clip: initial;          /* 添加标准属性 */
-webkit-text-fill-color: initial;
color: var(--primary-color);       /* 使用标准的 color 属性替代 */
    }
    
    .nav-container {
        padding: var(--space-sm);
    }
    
    .nav-links {
        display: none;
    }
    
    .game-content {
        padding: 5rem var(--space-sm) var(--space-sm);
    }
    
    .page-navigation {
        flex-direction: column;
        border-bottom: none;
        gap: var(--space-xs);
    }
    
    .nav-btn {
        text-align: center;
        border-bottom: none;
        border-left: 3px solid transparent;
        border-radius: 8px;
        background: var(--bg-secondary);
    }
    
    .nav-btn.active {
        border-left-color: var(--primary-color);
        border-bottom: none;
    }
    
    .additional-links {
        grid-template-columns: 1fr;
    }
    
    .download-info {
        grid-template-columns: 1fr;
    }
    
    .official-website-link,
    .download-main-button {
        width: 100%;
        justify-content: center;
    }
    
    .review-controls {
        flex-direction: column;
        gap: var(--space-sm);
        align-items: stretch;
    }
    
    .review-submit {
        width: 100%;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
        
        /* 性能优化 */
        gap: var(--space-sm);
    }
    
    .description-section, .links-section, .download-section, 
    .additional-links-section, .review-section, .reviews-list-section {
        padding: var(--space-sm);
    }
    
    .download-main-button {
        --width: 100%;
        max-width: 280px;
    }
    
    .download-dropdown {
        width: 100%;
    }
    
    .download-dropdown-menu {
        width: 100%;
        min-width: 280px;
    }
    
    /* 移动端减少阴影效果 */
    .game-cover,
    .screenshot-item,
    .review-item {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .game-cover:hover,
    .screenshot-item:hover,
    .review-item:hover {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
}

/* 减少动画和过渡的使用 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .game-cover:hover,
    .screenshot-item:hover,
    .review-item:hover,
    .download-main-button:hover {
        transform: none !important;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    }
}

/* 优化焦点指示器 */
.nav-btn:focus,
.download-main-button:focus,
.review-action:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    
    /* 性能优化 */
    transition: outline-offset var(--fast-animation) ease;
}

/* 优化字体加载 */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('/fonts/inter-var.woff2') format('woff2');
}