:root {
    --primary-light: #f5f0ff;
    --primary-purple: #7c3aed;
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --card-bg: #ffffff;
    --nav-width: 280px;
    --shadow: 0 4px 20px rgba(124, 58, 237, 0.15);
    --shadow-hover: 0 10px 30px rgba(124, 58, 237, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Roboto', sans-serif;
}

body {
    background: linear-gradient(135deg, var(--primary-light), #e9d5ff);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header with Navigation */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.95);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.site-title {
    font-size: 2.2rem;
    background: linear-gradient(90deg, var(--accent-pink), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
}

/* Navigation Sidebar */
.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--nav-width);
    background: rgba(255, 255, 255, 0.98);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
    z-index: 1000;
    box-shadow: var(--shadow-hover);
    backdrop-filter: blur(10px);
    padding-top: 80px;
    overflow-y: auto;
}

.nav-container.open {
    transform: translateX(0);
}

.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
}

.nav-overlay.active {
    display: block;
}

.menu-toggle {
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink));
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.menu-toggle:hover {
    transform: scale(1.1);
}

.nav-title {
    text-align: center;
    padding: 20px;
    font-size: 1.5rem;
    color: var(--accent-purple);
    border-bottom: 1px solid rgba(124, 58, 237, 0.2);
    margin-bottom: 20px;
}

.nav-list {
    list-style: none;
    padding: 0 20px;
}

.nav-item {
    margin-bottom: 15px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(124, 58, 237, 0.08);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.3s;
    border-left: 4px solid transparent;
}

.nav-link:hover {
    background: rgba(124, 58, 237, 0.15);
    border-left: 4px solid var(--accent-pink);
    transform: translateX(5px);
}

.nav-icon {
    font-size: 1.3rem;
    color: var(--accent-purple);
    width: 30px;
    text-align: center;
}

/* Main Content */
.main-content {
    padding: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Featured Games Section */
.featured-section {
    margin-bottom: 50px;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-primary);
}

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

.featured-games {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

/* 手机上的三列布局调整 */
@media (max-width: 768px) {
    .featured-games {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .featured-games {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 360px) {
    .featured-games {
        grid-template-columns: 1fr;
    }
}

.featured-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(124, 58, 237, 0.2);
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
    box-shadow: var(--shadow);
}

.featured-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-purple);
}

.featured-image {
    height: 140px;
    background: linear-gradient(45deg, #c4b5fd, var(--accent-purple), var(--accent-pink));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

.featured-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(90deg, var(--accent-pink), #f472b6);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

.featured-info {
    padding: 15px;
}

.featured-title {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.featured-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.featured-rating {
    color: #fbbf24;
    display: flex;
    align-items: center;
    gap: 3px;
}

/* Game Categories Section */
.categories-section {
    margin-bottom: 50px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

/* 手机上的三列布局调整 */
@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 360px) {
    .categories-grid {
        grid-template-columns: 1fr;
    }
}

.category-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid rgba(124, 58, 237, 0.2);
    transition: all 0.3s;
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink));
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-purple);
}

.category-icon {
    font-size: 2.5rem;
    color: var(--accent-purple);
    margin-bottom: 15px;
}

.category-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.category-count {
    font-size: 0.8rem;
    color: var(--accent-purple);
    background: rgba(124, 58, 237, 0.1);
    padding: 5px 12px;
    border-radius: 15px;
    display: inline-block;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px 30px 25px;
    margin-top: 50px;
    border-top: 1px solid rgba(124, 58, 237, 0.2);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.05);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-purple);
}


.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.9rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(124, 58, 237, 0.1);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Game Listing Page (分类游戏列表) */
.game-listing {
    display: none;
}

.listing-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.back-button {
    background: rgba(124, 58, 237, 0.15);
    color: var(--accent-purple);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.back-button:hover {
    background: rgba(124, 58, 237, 0.25);
    transform: scale(1.1);
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* 手机上的三列布局调整 */
@media (max-width: 768px) {
    .games-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 360px) {
    .games-grid {
        grid-template-columns: 1fr;
    }
}

.game-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(124, 58, 237, 0.2);
    transition: all 0.3s;
    cursor: pointer;
    box-shadow: var(--shadow);
}

.game-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-hover);
}

.game-image {
    height: 120px;
    background: linear-gradient(45deg, #c4b5fd, var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
}

.game-info {
    padding: 15px;
}

.game-title {
    font-size: 1rem;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.game-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.game-rating {
    color: #fbbf24;
    display: flex;
    align-items: center;
    gap: 3px;
}

/* Game Detail Page (游戏详情页) */
.game-detail {
    display: none;
    max-width: 1000px;
    margin: 0 auto;
}

.detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.game-detail-content {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(124, 58, 237, 0.2);
    margin-bottom: 40px;
}

.game-detail-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 30px;
}

.detail-game-icon {
    font-size: 6rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #c4b5fd, var(--accent-purple), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.detail-game-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.detail-game-category {
    font-size: 1rem;
    color: var(--accent-purple);
    background: rgba(124, 58, 237, 0.1);
    padding: 8px 20px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 20px;
}

.play-button-container {
    margin: 30px 0;
}

.play-button {
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink));
    color: white;
    border: none;
    padding: 18px 60px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.5rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s;
    box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4);
}

.play-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(124, 58, 237, 0.6);
}

.game-detail-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.info-card {
    background: rgba(124, 58, 237, 0.05);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid rgba(124, 58, 237, 0.1);
}

.info-title {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--accent-purple);
}

.info-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

.related-games-section {
    margin-top: 40px;
}

.related-games-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.related-games-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* 手机上的三列布局调整 */
@media (max-width: 768px) {
    .related-games-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .related-games-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (max-width: 360px) {
    .related-games-grid {
        grid-template-columns: 1fr;
    }
}

/* Responsive adjustments for mobile */
@media (max-width: 768px) {
    .header {
        padding: 15px 20px;
    }
    
    .site-title {
        font-size: 1.8rem;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .nav-container {
        width: 100%;
    }
    
    .game-detail-content {
        padding: 20px;
    }
    
    .detail-game-icon {
        font-size: 4rem;
    }
    
    .detail-game-title {
        font-size: 1.8rem;
    }
    
    .play-button {
        padding: 15px 40px;
        font-size: 1.3rem;
    }
}

/* Add to Home Screen Banner */
.add-to-home {
    background: linear-gradient(90deg, #e9d5ff, #d8b4fe);
    border-radius: 15px;
    padding: 20px;
    margin: 30px auto;
    max-width: 800px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    border: 1px solid var(--accent-purple);
    box-shadow: var(--shadow);
}

.add-to-home-text {
    flex: 1;
    min-width: 250px;
}

.add-to-home h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--accent-pink);
}

.add-to-home p {
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 0.95rem;
}

.add-to-home-button {
    background: linear-gradient(90deg, var(--accent-pink), #f472b6);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(236, 72, 153, 0.4);
}

.add-to-home-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(236, 72, 153, 0.6);
}

/* Game Stats */
.game-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}

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

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-purple);
}

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