/* Reset styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Variable definitions */
:root {
    /* Colors */
    --color-primary: #FF4655;
    --color-primary-dark: #E53E4C;
    --color-primary-darker: #CC3A46;
    --color-secondary: #26BBFF;
    --color-secondary-dark: #1AA8E6;
    --color-tertiary: #8C52FF;
    --color-success: #36E897;
    --color-warning: #FFD600;
    --color-background: #0A0A0A;
    --color-dark-bg: #0A0A0A;
    --color-card-bg: rgba(30, 30, 30, 0.7);
    --color-text-dark: #E8E8E8;
    --color-text-light: #FFFFFF;
    --color-border: #333333;
    --color-disabled: #444444;
    --color-gradient-1: linear-gradient(135deg, #FF4655, #8C52FF);
    --color-gradient-2: linear-gradient(135deg, #26BBFF, #36E897);
    --color-gradient-3: linear-gradient(45deg, #FF4655, #FFD600);
    --color-glow-primary: rgba(255, 70, 85, 0.6);
    --color-glow-secondary: rgba(38, 187, 255, 0.6);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-neon: 0 0 10px var(--color-glow-primary), 0 0 20px var(--color-glow-primary);
    --shadow-neon-secondary: 0 0 10px var(--color-glow-secondary), 0 0 20px var(--color-glow-secondary);
    
    /* Font sizes */
    --font-size-xs: 14px;
    --font-size-sm: 16px;
    --font-size-md: 18px;
    --font-size-lg: 22px;
    --font-size-xl: 28px;
    --font-size-xxl: 36px;
    
    /* Animations */
    --transition-fast: 0.2s;
    --transition-medium: 0.4s;
    --transition-slow: 0.8s;
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.27, 1.55);
    --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);
}

/* Basic styles */
body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', sans-serif;
    background-color: var(--color-background);
    background-image: radial-gradient(circle at center, #222 0%, #0A0A0A 100%);
    color: var(--color-text-light);
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Particles container */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

::selection {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-fast) var(--ease-smooth);
    position: relative;
}

a:hover {
    color: var(--color-primary-dark);
    text-shadow: 0 0 8px var(--color-glow-primary);
}

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

/* Site header section */
.site-header {
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-md) 0;
    color: var(--color-text-light);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.6);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: headerFadeIn 0.8s var(--ease-smooth);
}

@keyframes headerFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.logo {
    flex-shrink: 0;
    position: relative;
    animation: logoAnimation 0.8s var(--ease-bounce) 0.2s backwards;
}

.logo::before {
    content: "";
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: var(--color-gradient-1);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-medium) var(--ease-bounce);
}

.logo:hover::before {
    opacity: 0.5;
    transform: scale(1);
}

.logo img {
    height: 48px;
    width: 48px;
    border-radius: 50%;
    transition: all var(--transition-medium) var(--ease-bounce);
    transform-origin: center;
}

.logo:hover img {
    transform: scale(1.1) rotate(5deg);
}

@keyframes logoAnimation {
    0% {
        opacity: 0;
        transform: scale(0.5) rotate(-20deg);
    }
    60% {
        transform: scale(1.2) rotate(10deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0);
    }
}

.site-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-medium) var(--ease-smooth);
    animation: titleFadeIn 0.8s var(--ease-smooth) 0.4s backwards;
}

.site-info:hover .site-title {
    transform: translateX(5px);
    background-size: 150% 150%;
}

.site-tagline {
    font-size: var(--font-size-xs);
    opacity: 0.8;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-medium) var(--ease-smooth);
    animation: taglineFadeIn 0.8s var(--ease-smooth) 0.6s backwards;
}

.site-info:hover .site-tagline {
    opacity: 1;
    transform: translateX(5px);
}

@keyframes titleFadeIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes taglineFadeIn {
    from {
        opacity: 0;
        transform: translateX(-15px);
    }
    to {
        opacity: 0.8;
        transform: translateX(0);
    }
}

.site-text {
    flex-grow: 1;
}

.refresh-button {
    background: var(--color-gradient-1);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-medium) var(--ease-bounce);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.refresh-button::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0) 70%);
    top: -50%;
    left: -50%;
    transform: scale(0);
    transition: all 0.5s var(--ease-smooth);
}

.refresh-button:hover {
    transform: rotate(180deg) scale(1.1);
    box-shadow: var(--shadow-neon);
}

.refresh-button:hover::before {
    transform: scale(3);
    opacity: 0;
}

.refresh-button.rotating {
    animation: rotate-full 1s linear infinite;
}

@keyframes rotate-full {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Game experience section */
.game-section {
    padding: var(--spacing-md) 0;
    animation: sectionFadeIn 1s var(--ease-smooth) 0.4s backwards;
}

@keyframes sectionFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.game-container {
    width: 100%;
    height: calc(70vh - 60px);
    background-color: var(--color-card-bg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
}

.game-iframe {
    width: 100%;
    height: 100%;
    border: none;
    opacity: 1;
}

.game-iframe.loaded {
    opacity: 1;
}

.loading-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(10, 10, 10, 0.9);
    color: var(--color-text-light);
    z-index: 10;
    transition: all 0.5s var(--ease-smooth);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.27, 1.55) infinite;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 0 20px var(--color-glow-primary);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-animation p {
    font-size: var(--font-size-md);
    letter-spacing: 2px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

#gameFrame {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Game library section */
.game-library {
    padding: 0 0 var(--spacing-lg) 0;
    animation: sectionFadeIn 1s var(--ease-smooth) 0.6s backwards;
}

.section-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    display: none;
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-md);
    justify-content: center;
}

.game-card {
    position: relative;
    aspect-ratio: 1/1;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all var(--transition-medium) var(--ease-bounce);
    transform-origin: center;
    border: 2px solid transparent;
    z-index: 1;
}

.game-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
    opacity: 0;
    transition: opacity var(--transition-medium) var(--ease-smooth);
}

.game-card::after {
    content: "Play";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: var(--color-text-light);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 2;
    opacity: 0;
    transition: all var(--transition-medium) var(--ease-bounce);
    background: var(--color-gradient-1);
    padding: 5px 15px;
    border-radius: var(--border-radius-sm);
}

.game-card:hover {
    transform: scale(1.08) translateY(-5px) rotate(2deg);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
    z-index: 2;
}

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

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

.game-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium) var(--ease-smooth);
}

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

.game-card.active {
    border: 2px solid var(--color-primary);
    box-shadow: 0 0 15px var(--color-glow-primary);
}

/* Play more button style */
.more-games-btn {
    position: relative;
    aspect-ratio: 1/1;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all var(--transition-medium) var(--ease-bounce);
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: var(--color-gradient-2);
    background-size: 200% 200%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: gradientShift 10s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.more-games-btn:hover {
    transform: scale(1.08) translateY(-5px);
    box-shadow: 0 0 20px var(--color-glow-secondary);
    border-color: var(--color-secondary);
}

.more-games-btn span {
    color: var(--color-text-light);
    font-weight: 700;
    font-size: calc(var(--font-size-sm) * 1.8);
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-medium) var(--ease-bounce);
}

.more-games-btn:hover span {
    transform: scale(1.1);
}

.more-games-btn::after {
    content: "";
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 70%);
    top: -25%;
    left: -25%;
    opacity: 0;
    transition: all 0.8s var(--ease-smooth);
    transform: scale(0.5);
}

.more-games-btn:hover::after {
    opacity: 0.2;
    transform: scale(1);
}

/* Game information section */
.game-info {
    background-color: rgba(10, 10, 10, 0.8);
    background-image: linear-gradient(to bottom, rgba(10, 10, 10, 0.8), rgba(30, 30, 30, 0.8));
    color: var(--color-text-light);
    padding: var(--spacing-xl) 0;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    animation: sectionFadeIn 1s var(--ease-smooth) 0.8s backwards;
}

.game-info::before {
    content: none;
}

.game-details {
    width: 100%;
    margin: 0 auto;
    background: var(--color-card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-medium) var(--ease-smooth);
}

.game-details:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6);
    border-color: rgba(255, 255, 255, 0.3);
}

.game-details h1 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    color: var(--color-text-light);
    padding-bottom: var(--spacing-sm);
    display: inline-block;
    border-bottom: none;
}

.game-details h2 {
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 5px rgba(38, 187, 255, 0.5);
}

.game-meta, .game-description, .game-controls, .game-strategy {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-medium) var(--ease-smooth);
}

.game-meta:hover, .game-description:hover, .game-controls:hover, .game-strategy:hover {
    background: rgba(0, 0, 0, 0.3);
    transform: translateX(5px);
}

/* Animation effects */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Button styles */
.btn {
    display: inline-block;
    background: var(--color-gradient-1);
    color: var(--color-text-light);
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-medium) var(--ease-bounce);
    border: none;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0) 70%);
    top: -50%;
    left: -50%;
    transform: scale(0);
    transition: all 0.5s var(--ease-smooth);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-neon);
    color: var(--color-text-light);
}

.btn:hover::before {
    transform: scale(3);
    opacity: 0;
}

.btn:active {
    transform: translateY(1px);
    box-shadow: var(--shadow-md);
}

/* Error message styles */
.error-message {
    background-color: rgba(255, 70, 85, 0.2);
    border: 1px solid var(--color-primary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    animation: shake 0.5s var(--ease-bounce);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.game-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-gradient-3);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-neon);
    animation: errorAppear 0.3s var(--ease-bounce);
}

@keyframes errorAppear {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }
    50% { transform: translate(-50%, -50%) scale(1.1); }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

/* Game controls overlay */
.controls-overlay {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-gradient-2);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    z-index: 100;
    text-align: center;
    max-width: 80%;
    font-size: var(--font-size-md);
    box-shadow: var(--shadow-neon-secondary);
    transition: all 0.5s var(--ease-smooth);
    animation: overlayAppear 0.5s var(--ease-bounce);
}

@keyframes overlayAppear {
    0% { transform: translate(-50%, -70%) scale(0.8); opacity: 0; }
    70% { transform: translate(-50%, -45%) scale(1.05); }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

.controls-overlay.fade-out {
    opacity: 0;
    transform: translate(-50%, -70%) scale(0.8);
}

/* Site footer */
.site-footer {
    text-align: center;
    font-size: var(--font-size-sm);
    padding: var(--spacing-lg) 0;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.site-footer:hover {
    opacity: 1;
}

/* 添加游戏目录的样式 */
/* Game Directory Section */
.game-directory {
    margin: var(--spacing-xl) 0 var(--spacing-md);
    padding: var(--spacing-xl);
    background-color: var(--color-card-bg);
    border-radius: var(--border-radius-lg);
    position: relative;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium) var(--ease-smooth);
    overflow: hidden;
}

.game-directory:before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-gradient-3);
    opacity: 0.05;
    z-index: -1;
    transition: opacity var(--transition-medium) var(--ease-smooth);
}

.game-directory:hover:before {
    opacity: 0.1;
}

.directory-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.directory-subtitle {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-md);
    color: var(--color-secondary);
    opacity: 0.8;
}

.directory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.directory-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    background-color: rgba(20, 20, 20, 0.6);
    transition: all var(--transition-fast) var(--ease-smooth);
    color: var(--color-text-light);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.directory-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-gradient-1);
    opacity: 0.5;
    transition: width var(--transition-fast) var(--ease-smooth);
}

.directory-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    background-color: rgba(30, 30, 30, 0.8);
}

.directory-item:hover:before {
    width: 8px;
}

.directory-item img {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    margin-right: var(--spacing-md);
    object-fit: cover;
    transition: transform var(--transition-fast) var(--ease-bounce);
}

.directory-item:hover img {
    transform: scale(1.1);
}

.directory-item-info h3 {
    font-size: var(--font-size-md);
    margin: 0 0 var(--spacing-xs);
    line-height: 1.2;
}

.directory-item-info span {
    font-size: var(--font-size-xs);
    opacity: 0.7;
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

.directory-item:hover .directory-item-info span {
    opacity: 1;
}

/* Responsive adjustments for directory */
@media (max-width: 768px) {
    .directory-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

@media (max-width: 480px) {
    .directory-grid {
        grid-template-columns: 1fr;
    }
    
    .game-directory {
        padding: var(--spacing-lg);
    }
}