:root {
    /* Main Colors */
    --primary-color: #ff6b6b;
    --secondary-color: #5f27cd;
    --accent-color: #feca57;
    --dark-color: #222831;
    --light-color: #ececec;
    
    /* Text Colors */
    --text-primary: #222831;
    --text-secondary: #596275;
    --text-light: #ececec;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-dark: #1e272e;
    
    /* Card and UI Elements */
    --card-bg: #ffffff;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --card-radius: 12px;
    
    /* Animation Speeds */
    --transition-slow: 0.4s;
    --transition-medium: 0.25s;
    --transition-fast: 0.15s;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-md: 1rem;
    --text-lg: 1.25rem;
    --text-xl: 1.5rem;
    --text-2xl: 2rem;
    --text-3xl: 2.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

a:hover {
    color: var(--secondary-color);
}

button {
    cursor: pointer;
    font-family: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

/* Header Styles */
.site-header {
    background-color: var(--bg-primary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
}

.logo-container {
    text-align: center;
}

.site-logo {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.site-tagline {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    display: none;
}

.menu-button, .search-button {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--text-xl);
    padding: var(--spacing-sm);
    border-radius: 50%;
    transition: all var(--transition-medium);
}

.menu-button:hover, .search-button:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--primary-color);
}

/* Side Menu Styles */
.side-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100%;
    background-color: var(--bg-primary);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform var(--transition-medium);
    overflow-y: auto;
}

.side-menu.active {
    transform: translateX(0);
}

.side-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid #eee;
}

.side-menu-header h2 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--primary-color);
}

.close-button {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--text-lg);
    padding: var(--spacing-sm);
    border-radius: 50%;
    transition: all var(--transition-medium);
}

.close-button:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--primary-color);
}

.menu-categories {
    padding: var(--spacing-md);
}

.menu-category {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-radius: var(--card-radius);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-medium);
    color: var(--text-primary);
}

.menu-category:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--primary-color);
}

.menu-category i {
    margin-right: var(--spacing-md);
    font-size: var(--text-lg);
    width: 24px;
    text-align: center;
}

.dark-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.dark-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Search Overlay Styles */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 300;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    overflow-y: auto;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    width: 100%;
    max-width: 600px;
    background-color: var(--bg-primary);
    border-radius: var(--card-radius);
    overflow: hidden;
    margin: 0 var(--spacing-md);
}

.search-input-wrapper {
    display: flex;
    border-bottom: 1px solid #eee;
}

.search-input {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    font-size: var(--text-md);
    outline: none;
}

.search-results {
    padding: var(--spacing-md);
}

.search-results-title {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

/* Featured Games Section */
.featured-games {
    position: relative;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

/* Swiper styles */
.swiper {
    width: 100%;
    height: 280px;
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.swiper-slide {
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.slide-background {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
}

.slide-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.slide-description {
    font-size: var(--text-sm);
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
    max-width: 80%;
}

.slide-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition-medium);
}

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

/* Swiper control customization */
.swiper-button-next, 
.swiper-button-prev {
    color: white;
    background-color: rgba(0, 0, 0, 0.3);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: all var(--transition-medium);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background-color: var(--primary-color);
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 18px;
    font-weight: bold;
}

.swiper-pagination-bullet {
    background: white;
    opacity: 0.5;
}

.swiper-pagination-bullet-active {
    background: var(--primary-color);
    opacity: 1;
}

/* Game Categories Section */
.game-categories {
    margin-bottom: var(--spacing-xl);
}

.category-section {
    margin-bottom: var(--spacing-xl);
}

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

.category-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.category-title i {
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
}

.view-all {
    font-size: var(--text-sm);
    color: var(--primary-color);
}

.game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

/* Game Card */
.game-card {
    background-color: var(--card-bg);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-medium);
}

.game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.game-image-container {
    position: relative;
    padding-bottom: 75%;
    overflow: hidden;
    background-color: #eee;
}

.game-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.game-card:hover .game-image {
    transform: scale(1.05);
}

.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.game-card:hover .game-overlay {
    opacity: 1;
}

.play-now {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-weight: 600;
    font-size: var(--text-sm);
    transform: translateY(10px);
    transition: all var(--transition-medium);
}

.game-card:hover .play-now {
    transform: translateY(0);
}

.game-info {
    padding: var(--spacing-md);
}

.game-title {
    font-size: var(--text-md);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.game-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.stars {
    color: var(--accent-color);
    display: flex;
}

.game-category-tag {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: var(--text-xs);
    font-weight: 600;
}

/* Category Banner */
.category-banner {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-lg) var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.category-icon {
    font-size: var(--text-3xl);
    margin-right: var(--spacing-md);
}

.category-info {
    flex: 1;
}

.category-info h2 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.category-description {
    font-size: var(--text-sm);
    opacity: 0.8;
}

.category-stats {
    text-align: right;
    font-size: var(--text-md);
    font-weight: 600;
}

/* Game Filter */
.game-filter {
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
    gap: var(--spacing-sm);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.game-filter::-webkit-scrollbar {
    display: none;
}

.game-filter button {
    background-color: transparent;
    border: 2px solid #eee;
    border-radius: 20px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-medium);
}

.game-filter button.active,
.game-filter button:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Breadcrumb Navigation */
.breadcrumb {
    padding: var(--spacing-md) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--text-secondary);
}

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

.breadcrumb i.fa-chevron-right {
    font-size: 10px;
    margin: 0 var(--spacing-sm);
}

/* Game Info Page */
.game-info-page .container {
    max-width: 1000px;
}

.game-info-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
    width: 100%;
}

.game-preview {
    position: relative;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    width: 100%;
    display: block;
    max-width: 300px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    aspect-ratio: 1/1;
}

.game-preview img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.game-category {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--text-sm);
    font-weight: 600;
    z-index: 2;
}

.game-details {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    width: 100%;
}

.game-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.game-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.rating {
    display: flex;
    align-items: center;
}

.stars {
    color: var(--accent-color);
    margin-right: var(--spacing-sm);
}

.rating-value {
    font-weight: 600;
}

.plays {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.game-description {
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.game-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.feature {
    background-color: #f9f9f9;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--text-sm);
}

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

.play-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xxl);
    border-radius: 30px;
    font-size: var(--text-md);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-medium);
    margin: 0 auto;
}

.play-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Related Games Section */
.related-games {
    margin-bottom: var(--spacing-xxl);
}

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

.section-header h2 {
    font-size: var(--text-lg);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--primary-color);
}

.related-games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

/* Footer */
.site-footer {
    background: linear-gradient(to right, var(--dark-color), #2d3436);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xxl);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

.footer-sections {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    width: 100%;
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo h2 {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.footer-logo p {
    font-size: var(--text-sm);
    color: var(--text-light);
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.footer-links a {
    color: var(--text-light);
    font-size: var(--text-sm);
    transition: all var(--transition-medium);
    opacity: 0.8;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
}

.footer-links a:hover {
    color: var(--primary-color);
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-3px);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-md);
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    transition: all var(--transition-medium);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-bottom p {
    font-size: var(--text-xs);
    color: var(--text-light);
    opacity: 0.7;
}

/* Last Updated */
.last-updated {
    margin-top: var(--spacing-md);
    color: var(--text-light);
    font-size: var(--text-xs);
    opacity: 0.6;
}

@media (min-width: 768px) {
    .footer-sections {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        align-items: flex-start;
        text-align: left;
    }
    
    .footer-links {
        justify-content: flex-start;
    }
    
    .footer-social {
        justify-content: flex-start;
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 992px) {
    .footer-sections {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

/* Utility Classes */
.hidden {
    display: none;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

/* Media Queries */
@media (max-width: 575px) {
    /* 确保在最小屏幕上游戏图片也能显示 */
    .game-preview {
        max-width: 100%;
        margin-bottom: var(--spacing-md);
        aspect-ratio: 1/1;
    }
    
    .game-image {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }
    
    .game-title {
        font-size: var(--text-lg);
    }
}

@media (min-width: 576px) {
    .site-tagline {
        display: block;
    }
    
    .game-info-container {
        flex-direction: row;
        align-items: flex-start;
    }
    
    .game-preview {
        flex: 1;
        max-width: 250px;
        margin: 0;
        aspect-ratio: 1/1;
    }
    
    .game-details {
        flex: 2;
    }
}

@media (min-width: 768px) {
    .swiper {
        height: 300px;
    }
    
    .category-section .game-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .related-games-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .game-preview {
        max-width: 300px;
        aspect-ratio: 1/1;
    }
}

@media (min-width: 992px) {
    .swiper {
        height: 350px;
    }
    
    .category-section .game-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .related-games-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .game-preview {
        max-width: 350px;
        aspect-ratio: 1/1;
    }
}

@media (min-width: 1200px) {
    .swiper {
        height: 400px;
    }
    
    .category-section .game-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .related-games-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* Game Controls Section */
.game-controls-section {
    background-color: var(--bg-primary);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
}

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

.controls-grid {
    display: grid;
    /* grid-template-columns: 1fr; */
    gap: var(--spacing-lg);
}

.control-card {
    background-color: var(--bg-secondary);
    border-radius: var(--card-radius);
    padding: var(--spacing-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.control-card h3 {
    font-size: var(--text-md);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.control-card h3 i {
    color: var(--secondary-color);
}

.control-list {
    list-style: none;
    padding: 0;
}

.control-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.control-list li:last-child {
    border-bottom: none;
}

.key-command {
    font-weight: 600;
    background-color: var(--dark-color);
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-family: monospace;
    font-size: var(--text-sm);
}

.key-action {
    color: var(--text-secondary);
}

.mobile-tip {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    background-color: rgba(254, 202, 87, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--card-radius);
    border-left: 3px solid var(--accent-color);
}

.mobile-tip i {
    color: var(--accent-color);
    margin-top: 3px;
}

.mobile-tip p {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--text-primary);
}

/* @media (min-width: 768px) {
    .controls-grid {
        grid-template-columns: 1fr 1fr;
    }
}  */

.footer-section {
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: var(--primary-color);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}