:root {
    /* Color Variables */
    --primary-color: #673AB7;
    --primary-light: #9575CD;
    --primary-dark: #512DA8;
    --accent-color: #FF4081;
    --accent-light: #FF80AB;
    --accent-dark: #F50057;
    
    --background-color: #F5F5F5;
    --card-background: #FFFFFF;
    --surface-color: #FFFFFF;
    
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-hint: #9E9E9E;
    --text-divider: #BDBDBD;
    --text-on-primary: #FFFFFF;
    --text-on-accent: #FFFFFF;
    
    /* Elevation Variables */
    --elevation-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --elevation-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --elevation-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    --elevation-4: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
    --elevation-5: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
    
    /* Spacing Variables */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Animation Variables */
    --transition-fast: 0.15s;
    --transition-normal: 0.25s;
    --transition-slow: 0.4s;
    
    /* Layout Variables */
    --header-height: 56px;
    --status-bar-height: 24px;
    --container-padding: 16px;
    --border-radius: 4px;
    --border-radius-lg: 8px;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6px var(--container-padding);
}

/* Header Styles */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.status-bar {
    height: var(--status-bar-height);
    background-color: var(--primary-dark);
    color: var(--text-on-primary);
}

.status-bar .container {
    padding-top: 5px;
}

.status-indicators {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    height: 100%;
    gap: var(--spacing-sm);
    font-size: 12px;
}

.main-nav {
    height: var(--header-height);
}

.main-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.menu-button, .search-button {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

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

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

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--text-on-primary);
    font-size: 20px;
    box-shadow: 0 2px 5px rgba(103, 58, 183, 0.3);
}

.logo-container h1 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--primary-dark);
    letter-spacing: 0.3px;
}

/* Side Drawer */
.side-drawer {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 280px;
    background-color: var(--surface-color);
    box-shadow: var(--elevation-3);
    z-index: 1100;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.side-drawer.open {
    transform: translateX(0);
}

.drawer-header {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--primary-color);
    color: var(--text-on-primary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.user-details h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.user-details p {
    font-size: 0.875rem;
    opacity: 0.8;
}

.drawer-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0;
}

.menu-list {
    list-style: none;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    color: var(--text-primary);
    transition: background-color var(--transition-fast);
}

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

.menu-item.active {
    background-color: rgba(103, 58, 183, 0.1);
    color: var(--primary-color);
    font-weight: 500;
}

.menu-item i {
    width: 24px;
    text-align: center;
    font-size: 1.25rem;
}

.drawer-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--text-divider);
}

.drawer-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.drawer-link i {
    font-size: 1rem;
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--surface-color);
    z-index: 1200;
    display: flex;
    flex-direction: column;
    padding-top: var(--spacing-lg);
    overflow-y: auto;
}

.search-overlay.hidden {
    display: none;
}

.search-container {
    width: 100%;
    max-width: 768px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-hint);
    font-size: 1.25rem;
}

.search-input {
    width: 100%;
    height: 56px;
    padding: 0 56px;
    border: none;
    border-radius: var(--border-radius-lg);
    background-color: rgba(103, 58, 183, 0.05);
    font-size: 1rem;
    color: var(--text-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    background-color: rgba(103, 58, 183, 0.08);
    box-shadow: 0 2px 6px rgba(103, 58, 183, 0.15);
}

.search-close-btn {
    position: absolute;
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.search-close-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

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

.search-results-title {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--text-divider);
}

.search-no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) 0;
    text-align: center;
    color: var(--text-secondary);
}

.search-no-results i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: rgba(103, 58, 183, 0.3);
}

.search-no-results p {
    font-size: 1rem;
    max-width: 300px;
    line-height: 1.5;
}

/* App Content */
.app-content {
    padding-top: calc(var(--header-height) + var(--status-bar-height));
    min-height: calc(100vh - 80px);
    transition: opacity 0.3s ease;
}

/* Featured Banner */
.featured-banner {
    background: linear-gradient(135deg, #673AB7, #512DA8);
    color: var(--text-on-primary);
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.banner-content {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.banner-content h2 {
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.banner-content p {
    font-size: 1rem;
    opacity: 0.9;
}

/* Category Sections */
.category-sections {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}

.category-section {
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-xl);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid rgba(103, 58, 183, 0.1);
    position: relative;
}

.category-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: var(--primary-color);
}

.category-title {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.category-title i {
    color: var(--primary-color);
    font-size: 1.1em;
}

.view-all {
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    transition: all 0.25s ease;
    padding: 5px 10px;
    border-radius: 4px;
}

.view-all:hover {
    background-color: rgba(103, 58, 183, 0.1);
    color: var(--primary-dark);
    transform: translateX(3px);
}

/* Games Grid */
.games-grid, #gameCategories .game-grid, .game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Game Card */
.game-card {
    background-color: rgba(255, 255, 255, 0.85);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(103, 58, 183, 0.12);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: none;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    position: relative;
}

.game-card:hover {
    box-shadow: 0 8px 20px rgba(103, 58, 183, 0.2);
    transform: translateY(-5px);
}

.game-thumbnail {
    position: relative;
    padding-top: 75%;
    overflow: hidden;
    background-color: #f0ebff;
    border-bottom: 1px solid rgba(103, 58, 183, 0.05);
}

.game-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
    z-index: 0;
}

.game-card:hover .game-thumbnail img {
    transform: scale(1.08);
}

/* 添加播放按钮效果 */
.game-thumbnail::before {
    content: '\f04b';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 50px;
    height: 50px;
    background-color: rgba(103, 58, 183, 0.85);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.game-card:hover .game-thumbnail::before {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.game-rating-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: rgba(103, 58, 183, 0.9);
    color: white;
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 3px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 2;
}

.game-rating-badge i {
    color: #FF80AB;
    font-size: 0.7rem;
}

.game-info {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.95), rgba(249, 247, 255, 0.95));
    border-top: 1px solid rgba(103, 58, 183, 0.08);
    position: relative;
    z-index: 1;
}

.game-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-dark);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-height: 2.6em;
}

.game-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding-top: 6px;
}

.game-plays {
    display: flex;
    align-items: center;
    gap: 4px;
    background-color: rgba(103, 58, 183, 0.08);
    padding: 3px 8px;
    border-radius: 12px;
}

.game-plays i {
    font-size: 0.7rem;
    color: var(--primary-color);
}

/* Category Page Specific */
.category-header-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-on-primary);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-xl);
}

.back-button a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    margin-bottom: var(--spacing-sm);
}

.category-info {
    margin-top: var(--spacing-sm);
}

.category-info h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.category-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 0.95rem;
}

.category-sort {
    display: flex;
    overflow-x: auto;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) 0;
    -webkit-overflow-scrolling: touch;
}

.sort-button {
    background-color: var(--background-color);
    border: 1px solid var(--text-divider);
    border-radius: 16px;
    padding: 6px 12px;
    font-size: 0.875rem;
    white-space: nowrap;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.sort-button:hover, .sort-button.hover {
    background-color: rgba(103, 58, 183, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--elevation-1);
}

.sort-button.active {
    background-color: var(--primary-color);
    color: var(--text-on-primary);
    border-color: var(--primary-color);
}

.sort-button i {
    margin-right: 4px;
    transition: transform var(--transition-fast);
}

.sort-button:hover i, .sort-button.hover i {
    transform: scale(1.2);
}

.sort-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.sort-button:active::after {
    animation: ripple 0.6s ease-out;
}

/* Game Detail Page */
.game-navigation {
    background-color: var(--surface-color);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--elevation-1);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.divider {
    margin: 0 var(--spacing-xs);
    font-size: 0.75rem;
}

.game-info-card {
    background-color: var(--surface-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--elevation-2);
    margin-bottom: var(--spacing-xl);
}

.game-cover {
    position: relative;
}

.cover-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.game-category-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--primary-color);
    color: var(--text-on-primary);
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 500;
}

.game-content {
    padding: var(--spacing-lg);
}

.game-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

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

.stars {
    display: flex;
    gap: 2px;
    color: #FFD700;
}

.rating-value {
    font-weight: 500;
    color: var(--text-primary);
}

.plays {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

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

.game-details-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--background-color);
    border-radius: var(--border-radius);
}

.game-detail-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 120px;
}

.detail-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--text-on-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-info {
    display: flex;
    flex-direction: column;
}

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

.detail-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.game-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

.play-button {
    background-color: var(--accent-color);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    box-shadow: var(--elevation-1);
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.play-button:hover {
    background-color: var(--accent-dark);
    box-shadow: var(--elevation-2);
}

.play-button i {
    font-size: 1.125rem;
}

/* Similar Games Section */
.similar-games-section {
    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: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.view-more {
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
}

.similar-games-grid, .game-grid.similar-games-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.related-games-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* Footer */
.app-footer {
    background: linear-gradient(135deg, #673AB7, #512DA8);
    color: #f5f5f5;
    padding: 2.5rem 0 2rem;
    margin-top: 2.5rem;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.footer-content {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.8rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.footer-logo i {
    font-size: 1.8rem;
    margin-right: 0.5rem;
    color: #FF4081;
    text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    color: #ffffff;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #FF4081;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

.footer-middle {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 1.8rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.footer-section {
    flex: 1;
    min-width: 180px;
    margin-right: 1.5rem;
    margin-bottom: 1.2rem;
}

.footer-section h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #FF80AB;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section li {
    margin-bottom: 0.6rem;
}

.footer-section a {
    color: #f5f5f5;
    text-decoration: none;
    transition: all 0.25s ease;
    padding: 2px 0;
    display: inline-block;
    position: relative;
}

.footer-section a:hover {
    color: #FF80AB;
    transform: translateX(3px);
}

.footer-section a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: #FF80AB;
    transition: width 0.25s ease;
}

.footer-section a:hover::after {
    width: 100%;
}

.footer-section p {
    line-height: 1.6;
    color: #e0e0e0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 0.5rem;
}

.copyright {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
}

.tagline {
    margin: 0;
    font-size: 0.9rem;
    font-style: italic;
    color: rgba(255,255,255,0.7);
}

@media (max-width: 768px) {
    .footer-top, .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-logo {
        margin-bottom: 1rem;
    }
    
    .footer-middle {
        flex-direction: column;
    }
    
    .footer-section {
        margin-right: 0;
        text-align: center;
    }
    
    .copyright, .tagline {
        margin-bottom: 0.5rem;
    }
}

/* Floating Action Button */
.fab {
    position: fixed;
    right: var(--spacing-lg);
    bottom: var(--spacing-lg);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: var(--text-on-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--elevation-2);
    border: none;
    cursor: pointer;
    z-index: 900;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.fab:hover {
    background-color: var(--accent-dark);
    transform: scale(1.05);
}

.share-fab {
    background-color: var(--primary-color);
}

.share-fab:hover {
    background-color: var(--primary-dark);
}

/* Responsive Styles */
@media (min-width: 768px) {
    .similar-games-grid, .game-grid.similar-games-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .related-games-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .games-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    }
}

@media (max-width: 768px) {
    .game-info-card {
        display: flex;
        flex-direction: column;
    }
    
    .game-stats {
        flex-wrap: wrap;
    }
    
    .games-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .related-games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .side-drawer {
        width: 100%;
        max-width: 320px;
    }
    
    .menu-item {
        padding: 1rem var(--spacing-lg);
    }
    
    .menu-item:active {
        background-color: rgba(103, 58, 183, 0.1);
    }
    
    .drawer-header {
        background: linear-gradient(135deg, #673AB7, #512DA8);
    }
}

@media (max-width: 576px) {
    :root {
        --container-padding: 12px;
    }
    
    .banner-content h2 {
        font-size: 1.5rem;
    }
    
    .banner-content p {
        font-size: 0.875rem;
    }
    
    .games-grid, #gameCategories .game-grid, .game-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: var(--spacing-md);
    }
    
    .game-card {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background-color: white;
    }
    
    .game-card:hover {
        transform: translateY(-3px);
    }
    
    .game-info {
        padding: var(--spacing-sm);
    }
    
    .game-title {
        font-size: 0.85rem;
    }
    
    .game-plays {
        padding: 2px 6px;
        font-size: 0.7rem;
    }
    
    .related-games-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .game-content {
        padding: var(--spacing-md);
    }
    
    .app-footer {
        padding: 2rem 0 1.5rem;
    }
    
    .footer-middle {
        flex-direction: column;
    }
    
    .footer-section {
        margin-right: 0;
        margin-bottom: 1.5rem;
        min-width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .view-all {
        align-self: flex-end;
    }
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.4s ease-out;
}

.scale-in {
    animation: scaleIn 0.3s ease-out;
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.ripple:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    20% {
        transform: scale(25, 25);
        opacity: 0.5;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

/* 美化视图标题 */
.site-description {
    padding: 1.5rem 0 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.site-description h2 {
    color: var(--primary-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: 0.3px;
}

.site-description p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 细微的滚动动画 */
.game-grid:hover .game-card {
    transform: translateZ(0);
}

.game-grid .game-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 改进分类搜索项的样式 */
.category-search-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    margin-bottom: 0.8rem;
    transition: all 0.25s ease;
}

.category-search-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(103, 58, 183, 0.15);
}

.category-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(103, 58, 183, 0.1);
    color: var(--primary-color);
    font-size: 1.25rem;
}

.category-info h3 {
    margin: 0 0 0.25rem;
    color: var(--primary-dark);
    font-size: 1rem;
}

.category-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.4;
}

/* 添加游戏卡片的悬停效果 */
.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(103, 58, 183, 0.2), transparent 70%);
    opacity: 0;
    z-index: 1;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

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

/* 游戏卡片链接样式 */
.game-card .game-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.game-thumbnail::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.1));
    z-index: 1;
}

.game-card:hover .game-thumbnail::after {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(103, 58, 183, 0.1));
}

/* 更好的卡片淡入效果 */
.game-grid .game-card {
    animation: fadeIn 0.5s ease-out;
    animation-fill-mode: both;
}

.game-grid .game-card:nth-child(1) { animation-delay: 0.05s; }
.game-grid .game-card:nth-child(2) { animation-delay: 0.1s; }
.game-grid .game-card:nth-child(3) { animation-delay: 0.15s; }
.game-grid .game-card:nth-child(4) { animation-delay: 0.2s; }
.game-grid .game-card:nth-child(5) { animation-delay: 0.25s; }
.game-grid .game-card:nth-child(6) { animation-delay: 0.3s; }