/* Root Variables */
:root {
  --primary-color: #007aff;
  --primary-hover: #0063cc;
  --secondary-color: #5ac8fa;
  --dark-color: #1d1d1f;
  --light-color: #f5f5f7;
  --grey-color: #86868b;
  --border-color: #d2d2d7;
  --danger-color: #ff3b30;
  --success-color: #34c759;
  --warning-color: #ff9500;
  --background-color: #fff;
  --card-background: #fff;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --border-radius: 8px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  --container-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --card-shadow: 0 4px 12px var(--shadow-color);
  --card-hover-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--background-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--primary-hover);
}

button {
  cursor: pointer;
  font-family: var(--font-main);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-md);
}

ul {
  list-style: none;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--primary-color);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  text-align: center;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: white;
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
}

.btn-play {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--success-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.btn-play:hover {
  background-color: #2bb750;
  color: white;
  transform: translateY(-2px);
}

.btn-fullscreen {
  background-color: var(--dark-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: background-color var(--transition-fast);
}

.btn-fullscreen:hover {
  background-color: #333;
}

/* Header */
header {
  background-color: var(--background-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

nav ul {
  display: flex;
  gap: var(--spacing-lg);
}

nav a {
  color: var(--dark-color);
  font-weight: 500;
  position: relative;
}

nav a:hover {
  color: var(--primary-color);
}

nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-fast);
}

nav a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--dark-color);
  transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #007aff 0%, #5ac8fa 100%);
  color: white;
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero-tagline {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Game Hero Section */
.game-hero {
  background: linear-gradient(135deg, #007aff 0%, #5ac8fa 100%);
  color: white;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.game-hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xs);
}

.game-tagline {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Featured Games Section */
.featured-games {
  padding: var(--spacing-xxl) 0;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.featured-game {
  display: block;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-normal),
    box-shadow var(--transition-normal);
  background-color: var(--card-background);
  height: 100%;
}

.featured-game:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-hover-shadow);
}

.featured-game-img {
  height: 200px;
  overflow: hidden;
}

.featured-game-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.featured-game:hover .featured-game-img img {
  transform: scale(1.05);
}

.featured-game-info {
  padding: var(--spacing-md);
}

.featured-game-info h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--dark-color);
}

.featured-game-info p {
  margin-bottom: var(--spacing-md);
  color: var(--grey-color);
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-game-placeholder {
  background-color: #f0f0f0;
  border-radius: var(--border-radius);
  height: 350px;
  animation: pulse 1.5s infinite ease-in-out;
}

/* All Games Section */
.all-games {
  padding: var(--spacing-xxl) 0;
  background-color: var(--light-color);
}

.search-container {
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

#game-search {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

#game-search:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.2);
}

/* Games List Styles */
.games-list-container {
  max-width: 1000px;
  margin: 0 auto;
}

.games-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.game-list-item {
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  background-color: var(--card-background);
  transition: transform var(--transition-normal),
    box-shadow var(--transition-normal);
}

.game-list-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-hover-shadow);
}

.game-list-item .game-card {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm);
  color: var(--dark-color);
}

.game-list-item .game-card-img {
  width: 120px;
  height: 80px;
  overflow: hidden;
  border-radius: var(--border-radius);
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

.game-list-item .game-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.game-list-item:hover .game-card-img img {
  transform: scale(1.05);
}

.game-list-item .game-card-info {
  flex: 1;
}

.game-list-item h3 {
  margin-bottom: var(--spacing-xs);
  font-size: 1.1rem;
}

.game-list-item .game-category {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background-color: var(--light-color);
  color: var(--grey-color);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* 保留原有的游戏卡片样式以供其他页面使用 */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.game-card {
  display: block;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-normal),
    box-shadow var(--transition-normal);
  background-color: var(--card-background);
  height: 100%;
}

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

.game-card-img {
  height: 180px;
  overflow: hidden;
}

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

.game-card:hover .game-card-img img {
  transform: scale(1.05);
}

.game-card-info {
  padding: var(--spacing-md);
}

.game-card-info h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--dark-color);
  font-size: 1.1rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.game-category {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background-color: var(--light-color);
  color: var(--grey-color);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

.game-placeholder {
  background-color: #f0f0f0;
  border-radius: var(--border-radius);
  height: 100px;
  margin-bottom: var(--spacing-md);
  animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
  0% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.8;
  }
  100% {
    opacity: 0.6;
  }
}

/* Game Iframe Section */
.game-iframe-container {
  padding: var(--spacing-lg) 0;
}

.game-wrapper {
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  position: relative;
  background-color: #000;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.game-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.game-controls {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--spacing-md);
}

/* Game Details Section */
.game-details {
  padding: var(--spacing-xxl) 0;
}

.game-info-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
}

.game-description h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.game-description ul {
  list-style: disc;
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.game-description li {
  margin-bottom: var(--spacing-xs);
}

.game-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.game-stats {
  background-color: var(--light-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
}

.game-stats h2 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.game-stats ul {
  list-style: none;
}

.game-stats li {
  margin-bottom: var(--spacing-sm);
  display: flex;
  justify-content: space-between;
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

.game-stats li:last-child {
  border-bottom: none;
}

.game-stats li span:first-child {
  font-weight: 500;
}

.related-games {
  background-color: var(--light-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
}

.related-games h2 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

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

.related-game {
  display: block;
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--card-background);
  box-shadow: 0 2px 4px var(--shadow-color);
  transition: transform var(--transition-fast);
}

.related-game:hover {
  transform: translateY(-3px);
}

.related-game img {
  width: 100%;
  height: 80px;
  object-fit: cover;
}

.related-game span {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--dark-color);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.related-game-placeholder {
  background-color: #f0f0f0;
  border-radius: var(--border-radius);
  height: 120px;
  animation: pulse 1.5s infinite ease-in-out;
}

/* About Section */
.about-section {
  padding: var(--spacing-xxl) 0;
}

.about-content {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-text p:last-child {
  margin-bottom: 0;
}

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

.stat-card {
  background-color: var(--light-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--grey-color);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Footer */
footer {
  background-color: var(--dark-color);
  color: white;
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-col h3 {
  margin-bottom: var(--spacing-md);
  color: white;
}

.footer-col p {
  color: #bbb;
  font-size: 0.9rem;
}

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
  color: #bbb;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: white;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transition: background-color var(--transition-fast);
}

.social-links a:hover {
  background-color: var(--primary-color);
}

.copyright {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #bbb;
  font-size: 0.9rem;
}

/* Error Message */
.error-message {
  background-color: #ffdddd;
  border-left: 4px solid var(--danger-color);
  padding: var(--spacing-lg);
  color: var(--danger-color);
  text-align: center;
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius);
  font-weight: 500;
  line-height: 1.5;
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.2);
}

/* Loading Message */
.loading-message {
  background-color: #e6f7ff;
  border-left: 4px solid var(--primary-color);
  padding: var(--spacing-lg);
  color: var(--primary-color);
  text-align: center;
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius);
  animation: pulse 1.5s infinite ease-in-out;
  font-weight: 500;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.2);
}

.loading-message:after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to right,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--background-color);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-normal);
    z-index: 99;
    padding: 80px var(--spacing-lg) var(--spacing-lg);
  }

  nav.active {
    right: 0;
  }

  nav ul {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .game-info-grid {
    grid-template-columns: 1fr;
  }

  .game-list-item .game-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .game-list-item .game-card-img {
    width: 100%;
    height: 140px;
    margin-right: 0;
    margin-bottom: var(--spacing-sm);
  }
}

@media (max-width: 576px) {
  :root {
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-xxl: 2rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .games-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .related-games-grid {
    grid-template-columns: 1fr;
  }

  .game-card-img {
    height: 140px;
  }
}