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

:root {
    /* 游戏主色调 - 基于游戏主界面 */
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-900: #0c4a6e;
    
    /* 游戏背景色 - 深色系（专业游戏官网风格） */
    --game-bg-light: #1a1a2e;
    --game-bg: #0f0f1e;
    --game-dark: #0a0a15;
    --game-darker: #050508;
    --game-bg-section: #1e1e35;
    
    /* 游戏强调色 */
    --game-accent: #e94560;
    --game-accent-dark: #c73650;
    --game-accent-light: #ff5570;
    --game-gold: #ffd700;
    --game-gold-dark: #ffb800;
    --game-purple: #9333ea;
    --game-blue: #4a90e2;
    
    /* 资源颜色 */
    --resource-gold: #ffd700;
    --resource-diamond: #4a90e2;
    --resource-energy: #ffeb3b;
    
    /* 文字颜色 */
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 游戏UI阴影 */
    --shadow-game: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-game-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
    --shadow-button: 0 6px 20px rgba(233, 69, 96, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Noto Sans KR', sans-serif;
    background-color: var(--game-bg);
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
        linear-gradient(180deg, var(--game-bg-light) 0%, var(--game-bg) 100%);
    background-attachment: fixed;
    color: var(--gray-100);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
}

/* Animated Background Particles */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(56, 189, 248, 0.3), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(233, 69, 96, 0.3), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.2), transparent),
        radial-gradient(1px 1px at 80% 10%, rgba(147, 51, 234, 0.3), transparent);
    background-size: 200% 200%;
    background-position: 0% 0%, 100% 100%, 50% 50%, 0% 100%;
    animation: starfield 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    position: relative;
    z-index: 1;
}

/* Header - 深色游戏风格 */
.header {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(15, 15, 30, 0.98);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-100);
    text-decoration: none;
    background: linear-gradient(135deg, var(--game-accent), var(--game-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
    text-shadow: 0 0 20px rgba(233, 69, 96, 0.5);
}

.logo:hover {
    transform: scale(1.05);
}

.logo::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: logo-sweep 3s linear infinite;
    pointer-events: none;
}

@keyframes logo-shine {
    to { background-position: 200% center; }
}

@keyframes logo-sweep {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--gray-300);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--game-accent), var(--game-purple));
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--game-accent);
    background: rgba(233, 69, 96, 0.2);
    text-shadow: 0 0 10px rgba(233, 69, 96, 0.5);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--gray-300);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 4rem 0 6rem;
    overflow: hidden;
    background: linear-gradient(180deg, var(--game-bg-light) 0%, var(--game-bg) 50%, rgba(255, 255, 255, 0.95) 100%);
    min-height: 85vh;
    display: flex;
    align-items: center;
    box-shadow: inset 0 -20px 40px rgba(0, 0, 0, 0.05);
}

/* 视频背景Banner Hero */
.hero-video-banner,
.hero-entropia-style,
.hero-gaming-style {
    position: relative;
    min-height: 70vh;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: linear-gradient(180deg, var(--game-bg-light) 0%, var(--game-bg) 100%);
}

.hero-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-background-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 1;
    opacity: 0.6;
}

.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(26, 26, 46, 0.7) 0%,
        rgba(15, 15, 30, 0.8) 50%,
        rgba(15, 15, 30, 0.95) 100%
    );
    z-index: 2;
    pointer-events: none;
}

.hero-video-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(233, 69, 96, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(56, 189, 248, 0.1) 0%, transparent 50%);
    animation: overlay-pulse 4s ease-in-out infinite;
}

@keyframes overlay-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}


/* Hero内容包装器 */
.hero-content-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 8rem;
    position: relative;
    z-index: 10;
}

.hero-main-content {
    text-align: center;
    max-width: 800px;
    width: 100%;
}



/* 底部导航栏 */
.hero-bottom-nav {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: rgba(15, 15, 30, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    z-index: 15;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    position: relative;
    min-width: 70px;
}

.bottom-nav-item:hover {
    background: rgba(233, 69, 96, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
}

.bottom-nav-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease;
}

.bottom-nav-item:hover .bottom-nav-icon {
    transform: scale(1.15);
}

.bottom-nav-label {
    font-size: 0.75rem;
    color: var(--gray-300);
    font-weight: 500;
}

.bottom-nav-item:hover .bottom-nav-label {
    color: var(--game-accent);
    text-shadow: 0 0 10px rgba(233, 69, 96, 0.5);
}

.nav-notification {
    position: absolute;
    top: 0.25rem;
    right: 0.5rem;
    width: 10px;
    height: 10px;
    background: var(--game-accent);
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 0 0 2px rgba(233, 69, 96, 0.3);
    animation: notification-pulse 2s ease-in-out infinite;
}

@keyframes notification-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

/* 响应式设计 - 视频Banner */
@media (max-width: 1024px) {
    .hero-content-wrapper {
        padding: 6rem 2rem 9rem;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
}

@media (max-width: 768px) {
    .hero-video-banner {
        min-height: 100vh;
    }
    
    .hero-content-wrapper {
        padding: 5rem 1.5rem 9rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: 0.75rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 0;
    }
    
    
    .hero-bottom-nav {
        padding: 0.75rem 0;
    }
    
    .bottom-nav-item {
        padding: 0.25rem 0.5rem;
        min-width: 55px;
    }
    
    .bottom-nav-icon {
        width: 26px;
        height: 26px;
    }
    
    .bottom-nav-label {
        font-size: 0.65rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
        margin-bottom: 0;
    }
    
}



.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    font-size: 2rem;
    opacity: 0.4;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5));
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.8);
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 80%; top: 30%; animation-delay: 1s; }
.particle:nth-child(3) { left: 20%; top: 60%; animation-delay: 2s; }
.particle:nth-child(4) { left: 70%; top: 70%; animation-delay: 3s; }
.particle:nth-child(5) { left: 50%; top: 10%; animation-delay: 4s; }
.particle:nth-child(6) { left: 30%; top: 80%; animation-delay: 5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Hero logo removed - using text title instead */

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.hero-content {
    position: relative;
    text-align: center;
    z-index: 10;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5), 0 0 40px rgba(233, 69, 96, 0.3);
    position: relative;
    letter-spacing: -0.02em;
    line-height: 1.1;
    animation: title-fade-in 1s ease-out;
}

/* Entropia风格Hero标题 */
.hero-title-entropia {
    font-size: 6rem;
    font-weight: 900;
    margin-bottom: 1rem;
    color: white;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.8), 0 0 60px rgba(233, 69, 96, 0.5);
    letter-spacing: -0.03em;
    line-height: 1;
    animation: title-fade-in 1s ease-out;
    text-transform: uppercase;
}

.hero-subtitle-entropia {
    font-size: 1.75rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    animation: subtitle-fade-in 1s ease-out 0.3s both;
}

/* 专业电竞风格Hero */
.hero-gaming-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem 6rem;
    position: relative;
    z-index: 10;
    min-height: auto;
    text-align: center;
}

.hero-gaming-text {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--game-accent), var(--game-gold));
    color: white;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
    position: relative;
    overflow: hidden;
    animation: badge-pulse 2s ease-in-out infinite;
}

.hero-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: badge-shine 3s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes badge-shine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.hero-gaming-title {
    font-size: 5rem;
    font-weight: 900;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.8), 0 0 60px rgba(233, 69, 96, 0.5);
    animation: title-fade-in 1s ease-out;
}

.hero-gaming-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    animation: subtitle-fade-in 1s ease-out 0.2s both;
}

.hero-gaming-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    animation: desc-fade-in 1s ease-out 0.4s both;
}

.hero-gaming-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    animation: buttons-fade-in 1s ease-out 0.6s both;
}

.btn-gaming {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-gaming-primary {
    background: linear-gradient(135deg, var(--game-accent), var(--game-accent-dark));
    color: white;
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-gaming-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-gaming-primary:hover::before {
    left: 100%;
}

.btn-gaming-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(233, 69, 96, 0.7), 0 0 30px rgba(233, 69, 96, 0.4);
    background: linear-gradient(135deg, var(--game-accent-light), var(--game-accent));
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-gaming-primary svg {
    transition: transform 0.3s ease;
}

.btn-gaming-primary:hover svg {
    transform: translateX(5px);
}

.btn-gaming-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-gaming-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.btn-gaming-outline {
    background: transparent;
    color: var(--game-accent);
    border: 2px solid var(--game-accent);
}

.btn-gaming-outline:hover {
    background: var(--game-accent);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.5);
}

.hero-gaming-image {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 80px rgba(233, 69, 96, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s ease;
}

.hero-gaming-image::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--game-accent), var(--game-gold), var(--game-accent));
    border-radius: 1rem;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    filter: blur(10px);
}

.hero-gaming-image:hover::before {
    opacity: 0.5;
}

.hero-gaming-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 100px rgba(233, 69, 96, 0.5);
    border-color: rgba(233, 69, 96, 0.5);
}

.hero-gaming-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-gaming-image:hover img {
    transform: scale(1.08);
}

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

.hero-title::before {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    background: linear-gradient(to right, var(--primary-400), var(--game-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: blur(10px);
    opacity: 0.5;
}

@keyframes gradient {
    to { background-position: 300% center; }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: subtitle-fade-in 1s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0;
    line-height: 1.8;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    animation: desc-fade-in 1s ease-out 0.4s both;
}

@keyframes subtitle-fade-in {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes desc-fade-in {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 滚动动画优化 */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 性能优化 - GPU加速 */
.hero-gaming-image,
.showcase-image-wrapper,
.game-mode-card,
.news-card,
.screenshot-card,
.feature-card,
.stat-card-gaming {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* 减少动画对性能敏感设备的负担 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}


/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
    font-weight: bold;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.5));
    transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
    transform: scale(1.15) rotate(5deg);
}

.btn-primary {
    background: linear-gradient(135deg, #e94560, #c73650);
    color: white;
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.6), 0 0 30px rgba(233, 69, 96, 0.4);
    position: relative;
    overflow: hidden;
    border-radius: 0.75rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 2.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #ff5570, #e94560);
    transform: scale(1.03) translateY(-2px);
    box-shadow: 0 12px 35px rgba(233, 69, 96, 0.5), 0 0 25px rgba(233, 69, 96, 0.3);
}

.btn-primary:active {
    transform: scale(0.98) translateY(0);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    color: white;
    box-shadow: 0 10px 30px rgba(2, 132, 199, 0.4), 0 0 20px rgba(56, 189, 248, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-secondary:hover::before {
    left: 100%;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-400));
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 15px 40px rgba(56, 189, 248, 0.6), 0 0 30px rgba(56, 189, 248, 0.4);
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-dark {
    background-color: rgba(30, 30, 53, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.section-darker {
    background-color: var(--game-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    margin-top: 2rem;
    color: var(--gray-100);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    position: relative;
    display: block;
    width: 100%;
    letter-spacing: -0.02em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--game-accent), var(--game-purple));
    border-radius: 2px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-400), var(--game-accent), var(--game-gold));
    border-radius: 2px;
    box-shadow: 0 0 15px rgba(233, 69, 96, 0.6), 0 0 25px rgba(56, 189, 248, 0.4);
    animation: title-line-pulse 2s ease-in-out infinite;
}

@keyframes title-line-pulse {
    0%, 100% { 
        width: 120px;
        opacity: 1;
    }
    50% { 
        width: 150px;
        opacity: 0.8;
    }
}

@keyframes title-gradient {
    to { background-position: 300% center; }
}

.section-desc {
    text-align: center;
    color: var(--gray-300);
    margin-bottom: 2.5rem;
    margin-top: 1.5rem;
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
    max-width: 1200px;
    margin: 0 auto;
    justify-items: center;
}

.feature-card {
    background: rgba(30, 30, 53, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    overflow: hidden;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--game-accent), var(--game-gold));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover::after {
    transform: scaleX(1);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

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

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 60px rgba(233, 69, 96, 0.4), 0 0 40px rgba(233, 69, 96, 0.2), inset 0 0 20px rgba(233, 69, 96, 0.1);
    border-color: rgba(233, 69, 96, 0.5);
    background: rgba(30, 30, 53, 0.95);
}

.feature-card h3 {
    color: var(--gray-100);
    font-weight: 600;
    margin-bottom: 0.75rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.feature-card p {
    color: var(--gray-300);
    font-size: 0.95rem;
    line-height: 1.6;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: icon-float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5));
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: all 0.4s ease;
    position: relative;
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(5deg);
    filter: drop-shadow(0 0 20px rgba(233, 69, 96, 0.8));
}

.feature-icon::after {
    content: '';
    position: absolute;
    inset: -10px;
    background: radial-gradient(circle, rgba(233, 69, 96, 0.3), transparent);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover .feature-icon::after {
    opacity: 1;
}

.ui-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.feature-card:hover .ui-icon-img {
    transform: scale(1.1) translateY(-5px);
    filter: drop-shadow(0 0 20px rgba(56, 189, 248, 0.8));
}

.feature-card:nth-child(2) .feature-icon {
    animation-delay: 0.5s;
}

.feature-card:nth-child(3) .feature-icon {
    animation-delay: 1s;
}

.feature-card:nth-child(4) .feature-icon {
    animation-delay: 1.5s;
}

@keyframes icon-float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}


/* Screenshots Grid */
.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
    padding: 0.5rem 0;
}

@media (max-width: 768px) {
    .screenshots-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
    }
}

.screenshot-card {
    background: rgba(30, 30, 53, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    position: relative;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.screenshot-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(147, 51, 234, 0.1));
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.screenshot-card:hover::after {
    opacity: 1;
}

.screenshot-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-game-lg), 0 0 0 1px rgba(233, 69, 96, 0.2);
    border-color: rgba(233, 69, 96, 0.3);
}

.screenshot-card img {
    width: 100%;
    height: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    backface-visibility: hidden;
}

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


/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(180deg, rgba(30, 30, 53, 0.9) 0%, var(--game-bg) 100%);
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(233, 69, 96, 0.2) 0%, transparent 50%);
    animation: cta-pulse 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes cta-pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 18rem;
    height: 18rem;
    background: var(--game-accent);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.2;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 18rem;
    height: 18rem;
    background: var(--primary-500);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.2;
}

.cta-content {
    position: relative;
    text-align: center;
    z-index: 10;
}

.cta-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
    filter: drop-shadow(0 0 20px rgba(56, 189, 248, 0.8));
    text-shadow: 0 0 30px rgba(233, 69, 96, 0.6);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-100);
    letter-spacing: -0.02em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--gray-300);
    margin-bottom: 2.5rem;
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: rgba(15, 15, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 2rem;
    margin-top: auto;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-400), var(--game-accent), var(--game-purple), transparent);
    animation: footer-line 3s linear infinite;
}

@keyframes footer-line {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    text-align: center;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--game-accent), var(--game-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.footer-nav a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
}

.footer-nav a:hover {
    color: var(--game-accent);
    text-shadow: 0 0 10px rgba(233, 69, 96, 0.5);
}

.footer-copyright {
    color: var(--gray-500);
    font-size: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
}

/* 特色展示区域 - 左右分栏 */
.feature-showcase-section {
    padding: 5rem 0;
    background: var(--game-dark);
    position: relative;
    overflow: hidden;
}

.feature-showcase-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(233, 69, 96, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(56, 189, 248, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.feature-showcase-section > .container {
    position: relative;
    z-index: 1;
}

.feature-showcase-grid {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.feature-showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem 0;
}

.feature-showcase-item:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: -3rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.feature-showcase-right {
    direction: rtl;
}

.feature-showcase-right > * {
    direction: ltr;
}

.showcase-content {
    max-width: 600px;
}

.showcase-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(233, 69, 96, 0.2);
    color: var(--game-accent);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(233, 69, 96, 0.3);
}

.showcase-content h2 {
    font-size: 3rem;
    font-weight: 900;
    color: var(--gray-100);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.showcase-content p {
    font-size: 1.125rem;
    color: var(--gray-300);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.showcase-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.showcase-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--gray-200);
    font-size: 1rem;
}

.feature-list-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(233, 69, 96, 0.5));
}

.showcase-image-wrapper {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.showcase-image-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.2), rgba(56, 189, 248, 0.2));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
    pointer-events: none;
}

.showcase-image-wrapper:hover::before {
    opacity: 1;
}

.showcase-image-wrapper:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(233, 69, 96, 0.4);
    border-color: rgba(233, 69, 96, 0.5);
}

.showcase-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 0;
}

.showcase-image-wrapper:hover img {
    transform: scale(1.12);
}

/* Entropia风格 - 游戏展示区域 */
.game-showcase-section {
    padding: 6rem 0;
    background: var(--game-dark);
    position: relative;
    overflow: hidden;
}

.game-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.game-showcase-item {
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.game-showcase-item:hover {
    transform: translateY(-10px);
}

.showcase-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.game-showcase-item:hover .showcase-image img {
    transform: scale(1.15);
}

.showcase-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.game-showcase-item:hover .showcase-overlay {
    transform: translateY(0);
}

.showcase-overlay h3 {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.showcase-overlay p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 统计数据区域 */
.stats-section {
    padding: 5rem 0;
    background: var(--game-bg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 4rem;
    font-weight: 900;
    color: var(--game-accent);
    text-shadow: 0 0 30px rgba(233, 69, 96, 0.5);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-label {
    font-size: 1.125rem;
    color: var(--gray-300);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* 统计数据区域 - 电竞风格 */
.stats-section-gaming {
    padding: 4rem 0;
    background: linear-gradient(135deg, rgba(30, 30, 53, 0.9), rgba(15, 15, 30, 0.9));
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.stats-section-gaming::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(233, 69, 96, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(56, 189, 248, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid-gaming {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.stat-card-gaming {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-card-gaming::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--game-accent), var(--game-gold));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.stat-card-gaming:hover::before {
    transform: scaleX(1);
}

.stat-card-gaming:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(233, 69, 96, 0.5);
    box-shadow: 0 15px 40px rgba(233, 69, 96, 0.3);
}

.stat-icon-gaming {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(233, 69, 96, 0.2);
    border-radius: 50%;
    padding: 1rem;
}

.stat-icon-gaming img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(233, 69, 96, 0.5));
}

.stat-number-gaming {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--game-accent);
    text-shadow: 0 0 30px rgba(233, 69, 96, 0.5);
    margin-bottom: 0.75rem;
    line-height: 1;
}

.stat-label-gaming {
    font-size: 1rem;
    color: var(--gray-300);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* 进度展示区域 */
.progress-section {
    padding: 5rem 0;
    background: rgba(30, 30, 53, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.progress-content {
    max-width: 800px;
    margin: 0 auto;
}

.progress-items {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
}

.progress-item {
    position: relative;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progress-label {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-100);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.progress-percent {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--game-accent);
    text-shadow: 0 0 20px rgba(233, 69, 96, 0.5);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--game-accent), var(--game-gold));
    border-radius: 4px;
    transition: width 1s ease-out;
    box-shadow: 0 0 20px rgba(233, 69, 96, 0.5);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progress-shine 2s linear infinite;
}

@keyframes progress-shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Newsletter订阅区域 */
.newsletter-section {
    padding: 4rem 0;
    background: var(--game-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-100);
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.newsletter-content p {
    font-size: 1.125rem;
    color: var(--gray-300);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--game-accent);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 20px rgba(233, 69, 96, 0.3);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-title-entropia {
        font-size: 4.5rem;
    }
    
    .game-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-title-entropia {
        font-size: 3rem;
    }
    
    .hero-subtitle-entropia {
        font-size: 1.25rem;
    }
    
    .game-showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-input {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title-entropia {
        font-size: 2.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Section Header Gaming风格 */
.section-header-gaming {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-header-gaming::after {
    content: '';
    position: absolute;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(233, 69, 96, 0.5), transparent);
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(233, 69, 96, 0.2);
    color: var(--game-accent);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 2rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(233, 69, 96, 0.3);
}

.section-title-gaming {
    font-size: 3rem;
    font-weight: 900;
    color: var(--gray-100);
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.section-desc-gaming {
    font-size: 1.125rem;
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto;
}

/* 游戏模式展示区域 */
.game-modes-section {
    padding: 4rem 0;
    background: rgba(30, 30, 53, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.game-modes-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(233, 69, 96, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

.game-modes-section > .container {
    position: relative;
    z-index: 1;
}

.game-modes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.game-mode-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.game-mode-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.1), rgba(56, 189, 248, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
    pointer-events: none;
}

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

.game-mode-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(233, 69, 96, 0.6);
    box-shadow: 0 25px 60px rgba(233, 69, 96, 0.4), 0 0 40px rgba(233, 69, 96, 0.2);
}

.mode-content {
    position: relative;
    z-index: 2;
}

.mode-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.mode-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.game-mode-card:hover .mode-image img {
    transform: scale(1.15);
}

.mode-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), transparent);
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 1.5rem;
}

.mode-icon {
    width: 60px;
    height: 60px;
    background: rgba(233, 69, 96, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.5);
    transition: all 0.4s ease;
    position: relative;
    z-index: 2;
}

.game-mode-card:hover .mode-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 8px 25px rgba(233, 69, 96, 0.7);
    background: rgba(233, 69, 96, 1);
}

.mode-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.mode-content {
    padding: 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.mode-icon-text {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mode-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-100);
    margin-bottom: 0.75rem;
}

.mode-content p {
    font-size: 1rem;
    color: var(--gray-300);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.mode-link {
    color: var(--game-accent);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.mode-link:hover {
    color: var(--game-accent-light);
    gap: 0.75rem;
}

/* 最新资讯区域 */
.news-section {
    padding: 4rem 0;
    background: var(--game-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.news-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(233, 69, 96, 0.5), transparent);
}

.news-section > .container {
    position: relative;
    z-index: 1;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.news-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.news-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--game-accent), var(--game-gold));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.news-card:hover::after {
    transform: scaleX(1);
}

.news-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(233, 69, 96, 0.6);
    box-shadow: 0 25px 60px rgba(233, 69, 96, 0.4), 0 0 40px rgba(233, 69, 96, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.news-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.15);
}

.news-date {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    background: rgba(233, 69, 96, 0.95);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    text-align: center;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    z-index: 2;
}

.news-card:hover .news-date {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.7);
}

.date-day {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    line-height: 1;
}

.date-month {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 0.25rem;
}

.news-content {
    padding: 2rem;
    position: relative;
}

.news-date-simple {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: rgba(233, 69, 96, 0.2);
    color: var(--game-accent);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(233, 69, 96, 0.3);
    font-weight: 600;
}

.news-date-simple .date-day {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    line-height: 1;
    color: var(--game-accent);
}

.news-date-simple .date-month {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 0.25rem;
    color: var(--game-accent);
}

.news-category {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(233, 69, 96, 0.2);
    color: var(--game-accent);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 2rem;
    margin-bottom: 1rem;
}

.news-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-100);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.news-content p {
    font-size: 1rem;
    color: var(--gray-300);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.news-link {
    color: var(--game-accent);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.news-link:hover {
    color: var(--game-accent-light);
    gap: 0.75rem;
}

/* 响应式设计 - Gaming风格 */
@media (max-width: 1024px) {
    .hero-gaming-content {
        padding: 3rem 2rem 4rem;
    }
    
    .hero-gaming-style {
        min-height: 60vh;
        max-height: 80vh;
    }
    
    .hero-gaming-image {
        order: -1;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-gaming-title {
        font-size: 3.5rem;
        text-align: center;
    }
    
    .hero-gaming-text {
        text-align: center;
        margin: 0 auto;
    }
    
    .hero-gaming-buttons {
        justify-content: center;
    }
    
    .feature-showcase-item {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 3rem 0;
    }
    
    .feature-showcase-right {
        direction: ltr;
    }
    
    .showcase-content {
        text-align: center;
        margin: 0 auto;
    }
    
    .showcase-image-wrapper {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .game-modes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .stats-grid-gaming {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .section-header-gaming {
        margin-bottom: 3rem;
    }
}

@media (max-width: 768px) {
    .hero-gaming-content {
        padding: 2rem 1.5rem 3rem;
    }
    
    .hero-gaming-style {
        min-height: 50vh;
        max-height: 70vh;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .feature-showcase-section {
        padding: 3rem 0;
    }
    
    .game-modes-section {
        padding: 3rem 0;
    }
    
    .stats-section-gaming {
        padding: 3rem 0;
    }
    
    .news-section {
        padding: 3rem 0;
    }
    
    .hero-gaming-title {
        font-size: 2.5rem;
    }
    
    .hero-gaming-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-gaming-desc {
        font-size: 1rem;
    }
    
    .hero-gaming-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-gaming {
        width: 100%;
        justify-content: center;
    }
    
    .feature-showcase-section {
        padding: 5rem 0;
    }
    
    .showcase-content h2 {
        font-size: 2rem;
    }
    
    .showcase-content p {
        font-size: 1rem;
    }
    
    .game-modes-section {
        padding: 5rem 0;
    }
    
    .game-modes-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .news-section {
        padding: 5rem 0;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats-section-gaming {
        padding: 4rem 0;
    }
    
    .stats-grid-gaming {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-number-gaming {
        font-size: 2.5rem;
    }
    
    .stat-card-gaming {
        padding: 2rem 1.5rem;
    }
    
    .section-header-gaming {
        margin-bottom: 2.5rem;
    }
    
    .section-title-gaming {
        font-size: 2rem;
    }
    
    .section-desc-gaming {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-gaming-content {
        padding: 2rem 1rem 2.5rem;
    }
    
    .hero-gaming-style {
        min-height: 45vh;
        max-height: 65vh;
    }
    
    .section {
        padding: 2.5rem 0;
    }
    
    .feature-showcase-section {
        padding: 2.5rem 0;
    }
    
    .game-modes-section {
        padding: 2.5rem 0;
    }
    
    .stats-section-gaming {
        padding: 2.5rem 0;
    }
    
    .news-section {
        padding: 2.5rem 0;
    }
    
    .video-container {
        max-width: 100%;
        margin: 0 1rem;
    }
    
    .gameplay-video {
        max-height: 50vh;
    }
    
    .hero-gaming-title {
        font-size: 2rem;
    }
    
    .hero-gaming-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-gaming-desc {
        font-size: 0.9rem;
    }
    
    .hero-badge {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
    }
    
    .feature-showcase-section {
        padding: 4rem 0;
    }
    
    .showcase-content h2 {
        font-size: 1.75rem;
    }
    
    .showcase-features {
        gap: 0.75rem;
    }
    
    .game-modes-section {
        padding: 4rem 0;
    }
    
    .news-section {
        padding: 4rem 0;
    }
    
    .stats-section-gaming {
        padding: 3rem 0;
    }
    
    .stats-grid-gaming {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stat-number-gaming {
        font-size: 2rem;
    }
    
    .stat-icon-gaming {
        width: 50px;
        height: 50px;
    }
    
    .section-title-gaming {
        font-size: 1.75rem;
    }
    
    .mode-content h3,
    .news-content h3 {
        font-size: 1.25rem;
    }
}

/* Card */
.card {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(15, 15, 30, 0.95));
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, rgba(56, 189, 248, 0.3), rgba(233, 69, 96, 0.3)) 1;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 0 20px rgba(56, 189, 248, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    border-image: linear-gradient(135deg, var(--primary-400), var(--game-accent)) 1;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(56, 189, 248, 0.3);
    transform: translateY(-3px);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .main-content {
        padding: 3rem 0;
    }
}

/* Glowing Orbs Background */
.main-content::before {
    content: '';
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    top: 10%;
    left: -10%;
    animation: orb-float 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

.main-content::after {
    content: '';
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(233, 69, 96, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    bottom: 10%;
    right: -10%;
    animation: orb-float 15s ease-in-out infinite reverse;
    pointer-events: none;
    z-index: 0;
}

@keyframes orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.page-section {
    margin-bottom: 4rem;
    position: relative;
}

.page-section:last-child {
    margin-bottom: 0;
}

.card-large {
    max-width: 64rem;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    padding: 2rem;
}

@media (min-width: 768px) {
    .card-large {
        padding: 2.5rem;
    }
}

.card-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(12, 74, 110, 0.2), rgba(233, 69, 96, 0.2));
}

.card-bg-light {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom right, rgba(12, 74, 110, 0.1), rgba(233, 69, 96, 0.1));
}

.card-content {
    position: relative;
    z-index: 10;
}

.card-flex {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .card-flex {
        flex-direction: row;
        align-items: flex-start;
        gap: 2rem;
    }
}

.card-image-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.8), rgba(15, 15, 30, 0.8));
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(56, 189, 248, 0.2);
}

.card-image-placeholder:not(.character-avatar) {
    aspect-ratio: 16/9;
}

.card-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: relative;
    z-index: 2;
    display: block;
}


.hero-logo img {
    width: 100%;
    height: auto;
    display: block;
}

.character-avatar {
    width: 100%;
    max-width: 350px;
    aspect-ratio: auto;
    margin: 0;
    border-radius: 0.75rem;
    flex-shrink: 0;
    border: 3px solid var(--primary-400);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.3), 0 0 20px rgba(56, 189, 248, 0.2);
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9), rgba(15, 15, 30, 0.9));
    position: relative;
}

.character-avatar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(233, 69, 96, 0.1));
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1;
    pointer-events: none;
}

.character-avatar:hover::before {
    opacity: 1;
}

.character-avatar img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .character-avatar {
        width: 40%;
        max-width: 400px;
    }
    
    .card-text {
        flex: 1;
    }
}

@media (min-width: 768px) {
    .card-image-placeholder:not(.character-avatar) {
        width: 50%;
        flex-shrink: 0;
    }
}

.card-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.card-text h2 {
    font-size: 1.875rem;
    font-weight: bold;
    color: var(--primary-400);
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.5);
}

.card-text p {
    color: var(--gray-300);
    line-height: 1.75;
    margin-bottom: 0;
    font-size: 1rem;
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

@media (min-width: 768px) {
    .controls-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.control-card {
    background-color: var(--gray-800);
    border-radius: 0.5rem;
    padding: 1rem;
}

.control-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--game-accent);
    margin-bottom: 0.5rem;
}

.control-card ul {
    list-style: none;
    color: var(--gray-300);
}

.control-card li {
    margin-bottom: 0.5rem;
}

/* Growth Cycle */
.growth-cycle {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .growth-cycle {
        grid-template-columns: repeat(4, 1fr);
        position: relative;
    }
}

.cycle-item {
    text-align: center;
    position: relative;
}

.cycle-icon {
    display: inline-block;
    padding: 1rem;
    border-radius: 50%;
    font-size: 3rem;
    margin-bottom: 1rem;
    transition: transform 0.3s;
}

.cycle-item:hover .cycle-icon {
    transform: scale(1.1);
}

.cycle-icon-1 {
    background: linear-gradient(135deg, #ef4444, #f97316);
}

.cycle-icon-2 {
    background: linear-gradient(135deg, #eab308, #f59e0b);
}

.cycle-icon-3 {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
}

.cycle-icon-4 {
    background: linear-gradient(135deg, #a855f7, #ec4899);
}

.cycle-card {
    background-color: var(--gray-800);
    border-radius: 0.5rem;
    padding: 1rem;
    transition: background-color 0.3s;
}

.cycle-item:hover .cycle-card {
    background-color: #2d2d44;
}

.cycle-card h3 {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--game-accent);
    margin-bottom: 0.5rem;
}

.cycle-card p {
    color: var(--gray-300);
    font-size: 0.875rem;
}

.cycle-arrow {
    display: none;
    position: absolute;
    top: 50%;
    right: 0;
    transform: translate(50%, -50%);
    font-size: 1.875rem;
    color: var(--gray-600);
    animation: pulse-arrow 2s infinite;
    z-index: 10;
}

@media (min-width: 768px) {
    .cycle-arrow {
        display: block;
    }
}

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

.growth-path {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--gray-800);
    border-radius: 9999px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
}

.growth-path span:first-child {
    color: var(--gray-400);
}

.path-item {
    font-weight: 600;
}

.path-1 { color: var(--game-accent); }
.path-2 { color: #fbbf24; }
.path-3 { color: var(--primary-400); }
.path-4 { color: #a855f7; }

/* Systems Grid */
.systems-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .systems-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

.system-card {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    transition: all 0.4s;
    position: relative;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.6), rgba(15, 15, 30, 0.6));
    border-radius: 1rem;
    border: 1px solid rgba(56, 189, 248, 0.1);
    backdrop-filter: blur(10px);
}

.system-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(147, 51, 234, 0.1));
    opacity: 0;
    transition: opacity 0.4s;
    border-radius: 1rem;
    z-index: -1;
}

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

.system-card:hover {
    transform: translateX(5px);
}

.system-icon {
    font-size: 3rem;
    flex-shrink: 0;
    animation: icon-float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 15px rgba(56, 189, 248, 0.5));
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 2rem;
    overflow: visible;
    position: relative;
    min-width: 100px;
}

.system-icon .ui-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 15px rgba(56, 189, 248, 0.5));
    transition: transform 0.3s ease, filter 0.3s ease;
    display: block;
    max-width: 100%;
    max-height: 100%;
}

.system-card:hover .system-icon .ui-icon-img {
    transform: scale(1.15) translateY(-5px);
    filter: drop-shadow(0 0 25px rgba(56, 189, 248, 0.8));
}

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

.system-content {
    flex-grow: 1;
    min-width: 0;
}

.system-content h2 {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--primary-400);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.system-content p {
    color: var(--gray-300);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.system-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.system-tag {
    padding: 0.5rem 1rem;
    background-color: rgba(31, 41, 55, 0.8);
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--gray-200);
    border: 1px solid rgba(56, 189, 248, 0.2);
    transition: all 0.3s ease;
}

.system-tag:hover {
    background-color: rgba(56, 189, 248, 0.2);
    border-color: rgba(56, 189, 248, 0.4);
    transform: translateY(-2px);
}

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

/* Systems Grid Responsive */
@media (max-width: 767px) {
    .systems-grid {
        gap: 2rem;
        margin-top: 1.5rem;
    }
    
    .system-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 1.5rem 1rem;
        gap: 1.5rem;
    }
    
    .system-icon {
        margin-right: 0;
        margin-bottom: 0.5rem;
        width: 90px;
        height: 90px;
    }
    
    .system-content h2 {
        font-size: 1.5rem;
        margin-bottom: 0.875rem;
    }
    
    .system-content p {
        font-size: 0.9375rem;
        margin-bottom: 1.25rem;
        line-height: 1.7;
    }
    
    .system-tags {
        justify-content: center;
        gap: 0.625rem;
    }
    
    .system-tag {
        padding: 0.4rem 0.875rem;
        font-size: 0.8125rem;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .systems-grid {
        gap: 2.5rem;
    }
    
    .system-card {
        padding: 1.75rem;
    }
    
    .system-icon {
        width: 95px;
        height: 95px;
        margin-right: 1.75rem;
    }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
    width: 100%;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
}

.stat-card {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(15, 15, 30, 0.95));
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, rgba(56, 189, 248, 0.4), rgba(233, 69, 96, 0.4)) 1;
    border-radius: 0.75rem;
    padding: 1.5rem 1rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

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

.stat-card:hover {
    background: linear-gradient(135deg, rgba(12, 74, 110, 0.5), rgba(233, 69, 96, 0.2));
    border-image: linear-gradient(135deg, var(--primary-400), var(--game-accent)) 1;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.4);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    display: inline-block;
    animation: stat-icon-bounce 2s ease-in-out infinite;
    filter: drop-shadow(0 0 15px rgba(56, 189, 248, 0.6));
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.8);
}

.stat-card:nth-child(2) .stat-icon { animation-delay: 0.2s; }
.stat-card:nth-child(3) .stat-icon { animation-delay: 0.4s; }
.stat-card:nth-child(4) .stat-icon { animation-delay: 0.6s; }
.stat-card:nth-child(5) .stat-icon { animation-delay: 0.8s; }
.stat-card:nth-child(6) .stat-icon { animation-delay: 1s; }

@keyframes stat-icon-bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-5px) scale(1.1); }
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--game-accent), var(--primary-400), var(--game-gold));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 20px rgba(233, 69, 96, 0.5);
    animation: value-glow 2s ease-in-out infinite, value-gradient 3s linear infinite;
    line-height: 1.2;
}

@keyframes value-gradient {
    to { background-position: 200% center; }
}

@keyframes value-glow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-300);
    font-weight: 500;
    margin-top: 0.5rem;
    text-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.skill-card {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(15, 15, 30, 0.95));
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, rgba(56, 189, 248, 0.4), rgba(147, 51, 234, 0.4)) 1;
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.skill-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(147, 51, 234, 0.1));
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.skill-card:hover::after {
    opacity: 1;
}

.skill-card:hover {
    transform: scale(1.06) translateY(-5px);
    border-image: linear-gradient(135deg, var(--primary-400), var(--game-purple)) 1;
    box-shadow: 0 25px 50px rgba(56, 189, 248, 0.4), 0 0 40px rgba(147, 51, 234, 0.3);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.skill-icon-bg {
    width: 64px;
    height: 64px;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
    position: relative;
    overflow: visible;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
}

.skill-icon-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.5));
    transition: transform 0.3s ease, filter 0.3s ease;
    display: block;
    max-width: 100%;
    max-height: 100%;
}

.skill-card:hover .skill-icon-img {
    transform: scale(1.15) rotate(5deg);
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.8));
}

.skill-icon-bg::before {
    content: '';
    position: absolute;
    inset: -50%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: skill-shine 3s linear infinite;
}

@keyframes skill-shine {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.skill-header h3 {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--game-accent);
    margin-bottom: 0.25rem;
}

.skill-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-600);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.skill-image-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 0.5rem;
    overflow: hidden;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.8), rgba(15, 15, 30, 0.8));
    border: 1px solid rgba(56, 189, 248, 0.2);
    position: relative;
}

.skill-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
    position: relative;
    z-index: 2;
    display: block;
}

.skill-card:hover .skill-image-placeholder img {
    transform: scale(1.1);
}

.skill-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.skill-stat {
    background-color: var(--gray-800);
    border-radius: 0.5rem;
    padding: 0.75rem;
}

.skill-stat span {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-bottom: 0.25rem;
}

.skill-stat strong {
    display: block;
    font-size: 1.125rem;
    background: linear-gradient(135deg, var(--primary-400), var(--game-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5));
}

.skill-desc {
    color: var(--gray-300);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    font-weight: 500;
}

.skill-detail-desc {
    margin-top: 0.5rem;
}

.skill-effect {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(56, 189, 248, 0.1);
    border-left: 3px solid var(--primary-400);
    border-radius: 0.5rem;
}

.skill-effect strong {
    color: var(--primary-400);
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.5rem;
}

.skill-effect ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.skill-effect li {
    color: var(--gray-300);
    font-size: 0.8125rem;
    line-height: 1.6;
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
}

.skill-effect li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-400);
    font-weight: bold;
}

.skill-tips {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(233, 69, 96, 0.1);
    border-left: 3px solid var(--game-accent);
    border-radius: 0.5rem;
}

.skill-tips strong {
    color: var(--game-accent);
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.5rem;
}

.skill-tips p {
    color: var(--gray-300);
    font-size: 0.8125rem;
    line-height: 1.6;
    margin: 0;
}

/* 响应式优化 - 技能详情 */
@media (max-width: 768px) {
    .skill-effect,
    .skill-tips {
        padding: 0.75rem;
    }
    
    .skill-effect li,
    .skill-tips p {
        font-size: 0.75rem;
    }
    
    .skill-effect strong,
    .skill-tips strong {
        font-size: 0.8125rem;
    }
}

/* Equipment Slots */
.equipment-slots {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .equipment-slots {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .equipment-slots {
        grid-template-columns: repeat(6, 1fr);
    }
}

.equipment-slot {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9), rgba(15, 15, 30, 0.9));
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, rgba(56, 189, 248, 0.4), rgba(147, 51, 234, 0.4)) 1;
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.equipment-slot::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(56, 189, 248, 0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.equipment-slot:hover::before {
    opacity: 1;
}

.equipment-slot:hover {
    transform: scale(1.1) rotate(5deg);
    border-image: linear-gradient(135deg, var(--primary-400), var(--game-purple)) 1;
    box-shadow: 0 20px 40px rgba(56, 189, 248, 0.4), 0 0 30px rgba(147, 51, 234, 0.3);
    filter: drop-shadow(0 0 20px rgba(56, 189, 248, 0.6));
}

.equipment-slot br {
    display: block;
    margin: 0.5rem 0;
}

/* Equipment Grid */
.equipment-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1400px) {
    .equipment-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.equipment-item {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.95), rgba(15, 15, 30, 0.95));
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, rgba(234, 179, 8, 0.5), rgba(233, 69, 96, 0.5)) 1;
    border-radius: 0.75rem;
    padding: 1.5rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: visible;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: fit-content;
}

.equipment-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(234, 179, 8, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.equipment-item:hover::before {
    opacity: 1;
}

.equipment-item:hover {
    transform: scale(1.05) translateY(-5px);
    border-image: linear-gradient(135deg, var(--game-gold), var(--game-accent)) 1;
    box-shadow: 0 25px 50px rgba(234, 179, 8, 0.4), 0 0 40px rgba(233, 69, 96, 0.3);
    z-index: 10;
    position: relative;
}

.equipment-image {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.8), rgba(15, 15, 30, 0.8));
    margin-bottom: 1rem;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.equipment-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
    position: relative;
    z-index: 2;
    display: block;
}

.equipment-item:hover .equipment-image img {
    transform: scale(1.1) rotate(5deg);
}

.equipment-rarity {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.rarity-common {
    background: linear-gradient(135deg, rgba(107, 114, 128, 0.3), rgba(75, 85, 99, 0.3));
    color: var(--gray-300);
    box-shadow: 0 0 10px rgba(107, 114, 128, 0.3);
}

.rarity-epic {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.4), rgba(167, 139, 250, 0.4));
    color: #c4b5fd;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
    animation: rarity-pulse 2s ease-in-out infinite;
}

.rarity-legendary {
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.5), rgba(251, 191, 36, 0.5));
    color: #fde047;
    box-shadow: 0 0 20px rgba(234, 179, 8, 0.6);
    animation: rarity-pulse 1.5s ease-in-out infinite;
}

@keyframes rarity-pulse {
    0%, 100% { box-shadow: 0 0 15px rgba(139, 92, 246, 0.5); }
    50% { box-shadow: 0 0 25px rgba(139, 92, 246, 0.8); }
}

.equipment-item h3 {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--game-accent);
    margin-bottom: 0.5rem;
}

.equipment-item > p {
    color: var(--gray-400);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.equipment-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.equipment-stats span {
    padding: 0.25rem 0.75rem;
    background-color: var(--gray-800);
    border-radius: 0.25rem;
    font-size: 0.875rem;
    color: var(--gray-300);
}

.equipment-detail-desc {
    margin-top: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.equipment-effect {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(234, 179, 8, 0.1);
    border-left: 3px solid var(--game-gold);
    border-radius: 0.5rem;
}

.equipment-effect strong {
    color: var(--game-gold);
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.5rem;
}

.equipment-effect ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.equipment-effect li {
    color: var(--gray-300);
    font-size: 0.8125rem;
    line-height: 1.6;
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
}

.equipment-effect li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--game-gold);
    font-weight: bold;
}

.equipment-tips {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(233, 69, 96, 0.1);
    border-left: 3px solid var(--game-accent);
    border-radius: 0.5rem;
}

.equipment-tips strong {
    color: var(--game-accent);
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.5rem;
}

.equipment-tips p {
    color: var(--gray-300);
    font-size: 0.8125rem;
    line-height: 1.6;
    margin: 0;
}

/* 装备详情响应式 */
@media (max-width: 768px) {
    .equipment-effect,
    .equipment-tips {
        padding: 0.75rem;
    }
    
    .equipment-effect li,
    .equipment-tips p {
        font-size: 0.75rem;
    }
    
    .equipment-effect strong,
    .equipment-tips strong {
        font-size: 0.8125rem;
    }
}

/* Chapters Grid */
.chapters-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

@media (min-width: 768px) {
    .chapters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.chapter-card {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.9), rgba(17, 24, 39, 0.9));
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, rgba(56, 189, 248, 0.4), rgba(233, 69, 96, 0.4)) 1;
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.chapter-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

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

.chapter-card:hover {
    transform: translateY(-5px);
    border-image: linear-gradient(135deg, var(--primary-400), var(--game-accent)) 1;
    box-shadow: 0 20px 40px rgba(56, 189, 248, 0.3);
}

.chapter-image {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 0.5rem;
    overflow: hidden;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.8), rgba(15, 15, 30, 0.8));
    border: 1px solid rgba(56, 189, 248, 0.2);
    position: relative;
}

.chapter-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.chapter-card h3 {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--game-accent);
    margin-bottom: 0.75rem;
}

.chapter-card p {
    color: var(--gray-300);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.chapter-card p strong {
    color: var(--primary-400);
}

.chapter-desc {
    color: var(--gray-400);
    font-size: 0.875rem;
    font-style: italic;
    margin-top: 0.5rem;
}

.video-preview {
    margin-top: 1rem;
    border-radius: 0.5rem;
    overflow: hidden;
}

.video-preview video {
    width: 100%;
    height: auto;
    display: block;
}

.challenge-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-300);
    font-size: 0.875rem;
}

.feature-icon {
    font-size: 1.25rem;
    filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.5));
}

.feature-icon-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.5));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.feature-item:hover .feature-icon-img {
    transform: scale(1.15) rotate(5deg);
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.8));
}

.lottery-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.lottery-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(31, 41, 55, 0.5);
    border-radius: 0.5rem;
    border: 1px solid rgba(56, 189, 248, 0.3);
    transition: all 0.3s;
}

.lottery-option:hover {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--primary-400);
    transform: translateX(5px);
}

.lottery-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5));
}

.lottery-icon-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.lottery-option:hover .lottery-icon-img {
    transform: scale(1.15) rotate(-5deg);
    filter: drop-shadow(0 0 15px rgba(56, 189, 248, 0.8));
}

.lottery-option div {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.lottery-option strong {
    color: var(--primary-400);
    font-size: 1rem;
}

.lottery-option span {
    color: var(--gray-400);
    font-size: 0.875rem;
}

/* FAQ */
.faq-list {
    margin-top: 2rem;
}

.faq-item {
    background-color: var(--gray-800);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.faq-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--game-accent);
    margin-bottom: 0.75rem;
}

.faq-item p {
    color: var(--gray-300);
    line-height: 1.75;
}

/* Video Container */
.video-container {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(56, 189, 248, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.1);
    position: relative;
    background: rgba(0, 0, 0, 0.3);
}

.video-container::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--primary-400), var(--game-accent));
    border-radius: 1rem;
    z-index: -1;
    opacity: 0.5;
    filter: blur(10px);
}

.gameplay-video {
    width: 100%;
    height: auto;
    display: block;
    background: var(--game-dark);
    max-height: 70vh;
    object-fit: contain;
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.contact-item {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
    background-color: var(--gray-800);
    border-radius: 0.5rem;
    padding: 1.5rem;
}

.contact-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-400);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--gray-300);
}

/* Loading Animation */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.screenshot-image img,
.equipment-image img,
.skill-image-placeholder img,
.card-image-placeholder img {
    position: relative;
    z-index: 2;
}

/* Placeholder will show when img is hidden via onerror */
.screenshot-image:not(:has(img))::after,
.equipment-image:not(:has(img))::after,
.skill-image-placeholder:not(:has(img))::after,
.card-image-placeholder:not(:has(img))::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        rgba(255, 255, 255, 0.1) 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
    z-index: 1;
}

/* Game Decorative Elements */
.game-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: url('images/backgrounds/pattern.png');
    background-repeat: repeat;
    opacity: 0.05;
    pointer-events: none;
}

/* Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--game-darker);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-400), var(--game-accent));
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--game-accent), var(--game-purple));
}

/* Selection Styling */
::selection {
    background: rgba(56, 189, 248, 0.3);
    color: white;
}

::-moz-selection {
    background: rgba(56, 189, 248, 0.3);
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--game-dark);
        flex-direction: column;
        padding: 1rem;
        border-top: 1px solid var(--gray-800);
    }

    .nav-links.active {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid,
    .screenshots-grid {
        grid-template-columns: 1fr;
    }

    .hero-video {
        opacity: 0.3;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-desc {
        font-size: 1rem;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Image Loading Optimization */
img[loading="lazy"] {
    content-visibility: auto;
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .screenshot-card:hover {
        transform: none;
    }

    .screenshot-card:active {
        transform: scale(0.98);
    }

    .btn:active {
        transform: scale(0.95);
    }
}

/* High DPI Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-video {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Print Styles */
@media print {
    .hero,
    .hero-bg,
    .hero-video,
    .hero-particles {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}

/* Focus Styles for Accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-400);
    outline-offset: 2px;
}

/* Skip to Content Link */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-400);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
}

.skip-to-content:focus {
    top: 0;
}

/* Ripple Animation */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Image Loaded State */
img.loaded {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Additional Performance Optimizations */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* GPU Acceleration for Animations */
.screenshot-card,
.feature-card,
.card,
.btn,
.skill-card,
.equipment-item,
.chapter-card {
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

/* Container Optimization */
.container {
    contain: layout style paint;
}

/* Optimize Text Rendering */
h1, h2, h3, h4, h5, h6 {
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1;
}

/* Better Focus States */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary-400);
    outline-offset: 2px;
    border-radius: 0.25rem;
}

/* Loading States */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* Optimize Video */
video {
    object-fit: cover;
    will-change: transform;
}

/* Better Mobile Touch Targets */
@media (max-width: 768px) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* Reduce Motion for Animations */
@media (prefers-reduced-motion: reduce) {
    .screenshot-card:hover,
    .feature-card:hover,
    .card:hover,
    .skill-card:hover,
    .equipment-item:hover,
    .chapter-card:hover {
        transform: none;
    }
    
    .hero-video {
        display: none;
    }
}

/* Enhanced Responsive Design */
@media (max-width: 640px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-desc {
        font-size: 0.875rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .screenshot-card,
    .feature-card {
        padding: 1rem;
    }
}

/* Optimize for Large Screens */
@media (min-width: 1920px) {
    .container {
        max-width: 1400px;
    }
}

/* Dark Mode Support (if system prefers) */
@media (prefers-color-scheme: dark) {
    /* Already dark theme, but ensure consistency */
    body {
        background-color: var(--game-darker);
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .card,
    .screenshot-card,
    .feature-card {
        border-width: 3px;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
}

/* Print Optimization */
@media print {
    .header,
    .footer,
    .hero,
    .hero-bg,
    .hero-video,
    .hero-particles,
    .btn {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
}

/* Game Style Enhancements */
.card-content {
    position: relative;
    z-index: 10;
    width: 100%;
}

/* Fix Layout Issues */
.card-flex {
    width: 100%;
}

.stats-grid {
    clear: both;
    width: 100%;
}

/* Enhanced Game UI Elements */
.stat-card,
.skill-card,
.equipment-item,
.chapter-card {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Better Visual Hierarchy */
.card-text h2 {
    position: relative;
    padding-bottom: 0.5rem;
}

.card-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-400), transparent);
    border-radius: 2px;
}

/* Improved Spacing */
.card-content > * + * {
    margin-top: 1.5rem;
}

/* Game-style Glow Effects */
.stat-card::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 0.75rem;
    padding: 2px;
    background: linear-gradient(135deg, var(--primary-400), var(--game-accent), var(--game-purple));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: -1;
}

.stat-card:hover::after {
    opacity: 0.5;
}

/* Responsive Character Avatar */
@media (max-width: 767px) {
    .character-avatar {
        width: 100%;
        max-width: 100%;
        margin-bottom: 1.5rem;
    }
    
    .card-flex {
        flex-direction: column;
    }
    
    .card-text {
        width: 100%;
    }
}