/* ==========================================
   YUANTH GAMES - CYBERPUNK EDITION
   ========================================== */

/* --- 核心变量 --- */
:root {
  /* 主色调 - 赛博朋克霓虹色 */
  --neon-cyan: #00f3ff;
  --neon-magenta: #ff00ff;
  --neon-amber: #ffaa00;
  --neon-lime: #00ff88;
  
  /* 渐变 */
  --gradient-cyber: linear-gradient(135deg, #00f3ff 0%, #ff00ff 50%, #ffaa00 100%);
  --gradient-dark: linear-gradient(180deg, #050505 0%, #0a0a0f 100%);
  --gradient-card: linear-gradient(145deg, rgba(20,20,30,0.9) 0%, rgba(10,10,20,0.95) 100%);
  
  /* 颜色 */
  --bg-primary: #050505;
  --bg-secondary: #0a0a0f;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --border-glow: rgba(0, 243, 255, 0.3);
  
  /* 尺寸 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* 阴影 */
  --glow-cyan: 0 0 20px rgba(0, 243, 255, 0.4), 0 0 40px rgba(0, 243, 255, 0.2);
  --glow-magenta: 0 0 20px rgba(255, 0, 255, 0.4), 0 0 40px rgba(255, 0, 255, 0.2);
  --glow-amber: 0 0 20px rgba(255, 170, 0, 0.4), 0 0 40px rgba(255, 170, 0, 0.2);
  
  /* 动画 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 基础样式 --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* --- 扫描线效果 --- */
.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15),
    rgba(0, 0, 0, 0.15) 1px,
    transparent 1px,
    transparent 2px
  );
}

/* --- 网格背景 --- */
.grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  background-image: 
    linear-gradient(rgba(0, 243, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 243, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
  0% { transform: translateY(0); }
  100% { transform: translateY(50px); }
}

/* --- 导航栏 --- */
.cyber-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 243, 255, 0.2);
  transition: var(--transition-base);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Orbitron', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  text-decoration: none;
  color: var(--neon-cyan);
  letter-spacing: 2px;
}

.logo-bracket {
  color: var(--neon-magenta);
  text-shadow: var(--glow-magenta);
}

.logo-text {
  text-shadow: var(--glow-cyan);
}

.logo-sub {
  font-size: 0.7rem;
  color: var(--neon-amber);
  margin-left: 0.25rem;
  letter-spacing: 3px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--neon-cyan);
  border-color: rgba(0, 243, 255, 0.3);
  background: rgba(0, 243, 255, 0.05);
}

.link-icon {
  font-size: 1rem;
  transition: var(--transition-fast);
}

.nav-link:hover .link-icon {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  transform: scale(1.1);
}

.link-line {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-cyber);
  transition: var(--transition-base);
  transform: translateX(-50%);
}

.nav-link:hover .link-line {
  width: 80%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* 主题切换按钮 */
.cyber-toggle {
  width: 60px;
  height: 30px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  position: relative;
  cursor: pointer;
  transition: var(--transition-base);
  overflow: hidden;
}

.cyber-toggle:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
}

.toggle-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  z-index: 2;
  transition: var(--transition-base);
}

.toggle-icon.sun {
  left: 8px;
  color: var(--neon-amber);
}

.toggle-icon.moon {
  right: 8px;
  color: var(--neon-cyan);
}

.cyber-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 26px;
  height: 26px;
  background: var(--gradient-cyber);
  border-radius: 50%;
  transition: var(--transition-base);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--neon-cyan);
  transition: var(--transition-fast);
  box-shadow: 0 0 5px var(--neon-cyan);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 243, 255, 0.2);
  padding: 2rem;
  transform: translateY(-100%);
  opacity: 0;
  transition: var(--transition-base);
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
}

.mobile-link {
  display: block;
  padding: 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-fast);
}

.mobile-link:hover {
  color: var(--neon-cyan);
  padding-left: 1.5rem;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
  }
}

/* --- Hero 区域 --- */
.hero-cyber {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 2rem 4rem;
}

.hero-bg-effect {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 243, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 243, 255, 0.02) 1px, transparent 1px);
  background-size: 100px 100px;
  perspective: 500px;
  transform: scale(1.2);
  animation: grid-float 30s ease-in-out infinite;
}

@keyframes grid-float {
  0%, 100% { transform: scale(1.2) rotateX(0deg); }
  50% { transform: scale(1.1) rotateX(5deg); }
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
  animation: glow-float 10s ease-in-out infinite;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: rgba(0, 243, 255, 0.15);
  top: -200px;
  left: -200px;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: rgba(255, 0, 255, 0.15);
  bottom: -200px;
  right: -200px;
  animation-delay: -5s;
}

@keyframes glow-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}

.hero-glitch-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background: 
    repeating-linear-gradient(
      0deg,
      rgba(255, 0, 255, 0.03),
      rgba(255, 0, 255, 0.03) 1px,
      transparent 1px,
      transparent 2px
    );
  animation: glitch 8s infinite;
}

@keyframes glitch {
  0%, 100% { opacity: 0; }
  92% { opacity: 0; }
  93% { opacity: 0.5; }
  94% { opacity: 0; }
}

/* Hero 内容 */
.hero-content-cyber {
  position: relative;
  z-index: 10;
  max-width: 1000px;
  text-align: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.5rem;
  background: rgba(0, 243, 255, 0.1);
  border: 1px solid rgba(0, 243, 255, 0.3);
  border-radius: 30px;
  color: var(--neon-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2rem;
  animation: tag-glow 2s ease-in-out infinite;
}

@keyframes tag-glow {
  0%, 100% { box-shadow: 0 0 10px rgba(0, 243, 255, 0.3); }
  50% { box-shadow: 0 0 20px rgba(0, 243, 255, 0.5); }
}

.tag-icon {
  animation: spin 4s linear infinite;
}

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

.hero-title-cyber {
  margin-bottom: 1.5rem;
  font-family: 'Orbitron', sans-serif;
}

.title-line {
  display: block;
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.title-line.sub {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--text-secondary);
  letter-spacing: 8px;
  margin-top: 1rem;
}

.highlight {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  position: relative;
}

.highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--neon-cyan);
  opacity: 0.3;
}

.hero-desc-cyber {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

/* 按钮 */
.hero-cta {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.cyber-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.2rem 2.5rem;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.cyber-btn.primary {
  background: var(--neon-cyan);
  color: #000;
  border: none;
}

.cyber-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}

.cyber-btn.secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 2px solid var(--neon-cyan);
}

.cyber-btn.secondary:hover {
  background: rgba(0, 243, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: inset 0 0 20px rgba(0, 243, 255, 0.2);
}

.btn-icon {
  transition: var(--transition-fast);
}

.cyber-btn:hover .btn-icon {
  transform: translateX(5px);
}

/* 统计数字 */
.hero-stats-cyber {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.stat-box {
  text-align: center;
  position: relative;
}

.stat-value {
  display: block;
  font-family: 'Orbitron', sans-serif;
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--neon-magenta);
  text-shadow: var(--glow-magenta);
  line-height: 1;
}

.stat-unit {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  color: var(--neon-magenta);
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 0.5rem;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--neon-cyan), transparent);
}

/* 滚动提示 */
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.8rem;
  letter-spacing: 2px;
  animation: scroll-bounce 2s infinite;
}

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

.scroll-arrow {
  animation: arrow-bounce 1.5s infinite;
}

@keyframes arrow-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* 装饰元素 */
.hero-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.deco-line {
  position: absolute;
  background: rgba(0, 243, 255, 0.2);
}

.line-1 {
  width: 1px;
  height: 100px;
  top: 20%;
  left: 10%;
  transform: rotate(45deg);
}

.line-2 {
  width: 150px;
  height: 1px;
  bottom: 30%;
  right: 15%;
}

.deco-corner {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 2px solid var(--neon-cyan);
  opacity: 0.5;
}

.corner-tl { top: 100px; left: 100px; border-right: none; border-bottom: none; }
.corner-tr { top: 100px; right: 100px; border-left: none; border-bottom: none; }
.corner-bl { bottom: 100px; left: 100px; border-right: none; border-top: none; }
.corner-br { bottom: 100px; right: 100px; border-left: none; border-top: none; }

/* --- 特色区域 --- */
.features-cyber {
  padding: 8rem 2rem;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(255, 0, 255, 0.1);
  border: 1px solid rgba(255, 0, 255, 0.3);
  border-radius: 30px;
  color: var(--neon-magenta);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.section-title-cyber {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.gradient-text {
  background: var(--gradient-cyber);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card-cyber {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid rgba(0, 243, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition-base);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.feature-card-cyber:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(0, 243, 255, 0.4);
  box-shadow: var(--glow-cyan);
}

.feature-icon-cyber {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, rgba(0, 243, 255, 0.2) 0%, rgba(255, 0, 255, 0.2) 100%);
  border: 2px solid var(--neon-cyan);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--neon-cyan);
  transition: var(--transition-base);
}

.feature-card-cyber:hover .feature-icon-cyber {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--glow-cyan);
}

.feature-number {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  color: rgba(0, 243, 255, 0.3);
}

.feature-card-cyber h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

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

.feature-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-cyber);
  transition: width 0.5s ease;
}

.feature-card-cyber:hover .feature-line {
  width: 100%;
}

/* --- 游戏区域 --- */
.games-section {
  padding: 8rem 2rem;
  background: var(--bg-secondary);
  position: relative;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 1rem;
}

/* 游戏筛选器 */
.game-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-cyber {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.filter-cyber:hover {
  border-color: rgba(0, 243, 255, 0.3);
  color: var(--neon-cyan);
}

.filter-cyber.active {
  background: rgba(0, 243, 255, 0.15);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
}

.filter-icon {
  font-size: 1rem;
}

/* 游戏网格 */
.games-grid-cyber {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* 游戏卡片 */
.game-card-cyber {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid rgba(0, 243, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-base);
  backdrop-filter: blur(5px);
}

.game-card-cyber:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(0, 243, 255, 0.4);
  box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
}

/* 全息投影效果 */
.card-hologram {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.holo-line {
  position: absolute;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  opacity: 0;
  animation: holo-scan 3s ease-in-out infinite;
}

.holo-line:nth-child(1) { top: 33%; animation-delay: 0s; }
.holo-line:nth-child(2) { top: 66%; animation-delay: 1s; }
.holo-line:nth-child(3) { top: 100%; animation-delay: 2s; }

@keyframes holo-scan {
  0%, 100% { opacity: 0; transform: scaleX(0); }
  50% { opacity: 1; transform: scaleX(1); }
}

.card-image-cyber {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

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

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

.card-scan {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0, 243, 255, 0.1) 50%,
    transparent 100%
  );
  transform: translateY(-100%);
  animation: card-scan 2s ease-in-out infinite;
  pointer-events: none;
}

@keyframes card-scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

.card-overlay-cyber {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-base);
}

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

.play-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 3px;
  text-shadow: var(--glow-cyan);
  transform: translateY(10px);
  transition: var(--transition-base);
}

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

.card-tag-cyber {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.3rem 0.8rem;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(0, 243, 255, 0.3);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  font-weight: 600;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}

.card-content-cyber {
  padding: 1.25rem;
}

.card-content-cyber h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.card-content-cyber p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

.card-meta-cyber {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
}

.difficulty {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-transform: uppercase;
}

.difficulty.easy {
  background: rgba(0, 255, 136, 0.2);
  color: var(--neon-lime);
  border: 1px solid rgba(0, 255, 136, 0.3);
}

.difficulty.medium {
  background: rgba(255, 170, 0, 0.2);
  color: var(--neon-amber);
  border: 1px solid rgba(255, 170, 0, 0.3);
}

.difficulty.hard {
  background: rgba(255, 0, 255, 0.2);
  color: var(--neon-magenta);
  border: 1px solid rgba(255, 0, 255, 0.3);
}

.players {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* --- 页脚 --- */
.footer-cyber {
  position: relative;
  background: var(--bg-primary);
  border-top: 1px solid rgba(0, 243, 255, 0.2);
  padding: 4rem 2rem 2rem;
  margin-top: 6rem;
}

.footer-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 2px;
  background: var(--gradient-cyber);
  box-shadow: 0 -5px 20px var(--neon-cyan);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto 3rem;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
}

.footer-brand-cyber {
  display: flex;
  flex-direction: column;
}

.brand-logo-cyber {
  display: flex;
  align-items: center;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--neon-cyan);
  margin-bottom: 1rem;
}

.brand-name {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-top: 0.5rem;
}

.highlight {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
}

.brand-tagline {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

.made-by {
  color: var(--neon-magenta);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 0, 255, 0.1);
  border: 1px solid rgba(255, 0, 255, 0.3);
  border-radius: var(--radius-sm);
  text-align: center;
  letter-spacing: 1px;
  text-shadow: var(--glow-magenta);
}

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

.link-group h4 {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
}

.link-group a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  transition: var(--transition-fast);
}

.link-group a:hover {
  color: var(--neon-cyan);
  padding-left: 0.5rem;
}

.footer-bottom-cyber {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.cyber-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 243, 255, 0.3), transparent);
  margin-bottom: 1.5rem;
}

.footer-bottom-cyber p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.made-with {
  margin-top: 0.5rem;
  font-size: 0.8rem !important;
  opacity: 0.6;
}

.made-with i {
  color: var(--neon-magenta);
}

/* --- 背景装饰 --- */
.bg-decorations {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.decor {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.1;
}

.decor-1 {
  width: 500px;
  height: 500px;
  background: var(--neon-cyan);
  top: -200px;
  left: -200px;
}

.decor-2 {
  width: 400px;
  height: 400px;
  background: var(--neon-magenta);
  bottom: -150px;
  right: -150px;
}

.decor-3 {
  width: 300px;
  height: 300px;
  background: var(--neon-amber);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 1rem;
    height: 70px;
  }
  
  .nav-logo {
    font-size: 1.2rem;
  }
  
  .logo-sub {
    display: none;
  }
  
  .hero-stats-cyber {
    gap: 2rem;
  }
  
  .stat-value {
    font-size: 2.5rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-links-cyber {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .cyber-btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
  
  .games-grid-cyber {
    grid-template-columns: 1fr;
  }
}

/* --- 工具类 --- */
.text-cyan { color: var(--neon-cyan); }
.text-magenta { color: var(--neon-magenta); }
.text-amber { color: var(--neon-amber); }

/* --- 自定义滚动条 --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 243, 255, 0.5);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

/* --- 选择文本 --- */
::selection {
  background: rgba(0, 243, 255, 0.3);
  color: var(--text-primary);
}

/* --- 动画 --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.game-card-cyber {
  animation: fadeInUp 0.6s ease backwards;
}

/* 延迟动画 */
.game-card-cyber:nth-child(1) { animation-delay: 0.1s; }
.game-card-cyber:nth-child(2) { animation-delay: 0.2s; }
.game-card-cyber:nth-child(3) { animation-delay: 0.3s; }
.game-card-cyber:nth-child(4) { animation-delay: 0.4s; }
.game-card-cyber:nth-child(5) { animation-delay: 0.5s; }
.game-card-cyber:nth-child(6) { animation-delay: 0.6s; }
.game-card-cyber:nth-child(7) { animation-delay: 0.7s; }
.game-card-cyber:nth-child(8) { animation-delay: 0.8s; }