/* 主样式文件 */
@import url('./variables.css');
@import url('./responsive.css');

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition-base), color var(--transition-base);
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

/* 导航栏 */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--bg-nav);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) var(--spacing-xl);
  transition: background var(--transition-base), border-color var(--transition-base), backdrop-filter var(--transition-base);
}

/* 导航栏滚动时的样式 */
.nav.scrolled {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

[data-theme="dark"] .nav.scrolled {
  background: rgba(26, 26, 46, 0.95) !important;
}

[data-theme="light"] .nav.scrolled {
  background: rgba(255, 255, 255, 0.95) !important;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  flex-wrap: wrap;
}

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: bold;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: color var(--transition-base);
}

/* 主题切换按钮 */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-right: var(--spacing-md);
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--primary-light);
  background: var(--bg-section);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
  font-family: var(--font-family-base);
}

.theme-toggle-btn:hover {
  background: var(--primary-light);
  color: var(--text-inverse);
  transform: scale(1.05);
}

.theme-icon {
  font-size: var(--font-size-lg);
  line-height: 1;
}

.theme-text {
  font-weight: 500;
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
  list-style: none;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-base);
  transition: color var(--transition-base), background var(--transition-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
}

.nav-link:hover {
  color: var(--primary-light);
  background: var(--bg-section);
}

.language-switcher {
  display: flex;
  gap: var(--spacing-xs);
}

.lang-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--primary-light);
  background: transparent;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
}

.lang-btn:hover {
  background: var(--primary-light);
}

.lang-btn.active {
  background: var(--primary-light);
  color: var(--text-inverse);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  transition: color var(--transition-base);
}

/* Hero区域 */
.hero {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-xl);
  color: var(--text-primary);
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: bold;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
  line-height: 1.6;
}

.hero-description {
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--text-secondary);
  opacity: 0.85;
  transition: color var(--transition-base), opacity var(--transition-base);
}

@media (max-width: 768px) {
  .hero-description {
    font-size: var(--font-size-sm);
    padding: 0 var(--spacing-md);
  }
}

.hero-cta {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-2xl);
  background: linear-gradient(135deg, var(--success-color) 0%, var(--success-hover) 100%);
  color: var(--text-light);
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: bold;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* 游戏介绍描述区域 */
.game-intro-section {
  padding: var(--spacing-2xl) var(--spacing-xl);
  margin: var(--spacing-2xl) auto;
}

.game-intro-content {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-section);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: background var(--transition-base);
}

.game-intro-text {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--text-primary);
  text-align: justify;
  margin: 0;
  transition: color var(--transition-base);
}

/* 特色区域 */
.features {
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: transparent;
  margin: var(--spacing-2xl) auto;
  border-radius: 0;
  box-shadow: none;
}

.section-title {
  text-align: center;
  font-size: var(--font-size-2xl);
  font-weight: bold;
  margin-bottom: var(--spacing-xl);
  color: var(--text-primary);
  transition: color var(--transition-base);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), border-color var(--transition-base);
  text-align: center;
  color: var(--text-primary);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  display: block;
}

.feature-title {
  font-size: var(--font-size-lg);
  font-weight: bold;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  transition: color var(--transition-base);
}

.feature-desc {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
}

/* 截图区域 */
.screenshots {
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: transparent;
  margin: var(--spacing-2xl) auto;
}

.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

/* 轮播图样式 */
.screenshot-carousel-wrapper {
  position: relative;
  margin-top: var(--spacing-xl);
  padding: 0 var(--spacing-3xl);
}

.screenshot-carousel {
  overflow: hidden;
  position: relative;
  width: 100%;
}

.screenshot-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  gap: var(--spacing-lg);
  will-change: transform;
}

.screenshot-item {
  flex-shrink: 0;
  flex-grow: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
  box-sizing: border-box;
  width: calc((100% - var(--spacing-lg) * 2) / 3);
  min-width: 0;
}

/* 移动端轮播图样式覆盖 */
@media (max-width: 767px) {
  .screenshot-item {
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
  }
}

/* 平板端轮播图样式 */
@media (min-width: 768px) and (max-width: 1023px) {
  .screenshot-item {
    width: calc((100% - var(--spacing-lg)) / 2) !important;
  }
}

.screenshot-item:hover {
  transform: scale(1.05);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.9);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 32px;
  color: var(--primary-light);
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  font-weight: bold;
  line-height: 1;
}

.carousel-btn:hover {
  background: var(--primary-light);
  color: var(--text-light);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.carousel-prev {
  left: 0;
}

.carousel-next {
  right: 0;
}

.carousel-indicators {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.carousel-indicators .indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel-indicators .indicator.active {
  background: var(--primary-light);
  width: 24px;
  border-radius: 6px;
}

/* 图片查看器样式 */
.image-viewer-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.image-viewer-modal.active {
  opacity: 1;
  visibility: visible;
}

.image-viewer-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
}

.image-viewer-container {
  position: relative;
  z-index: 1001;
  max-width: 90%;
  max-height: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-viewer-image {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  animation: imageViewerFadeIn 0.3s ease;
}

@keyframes imageViewerFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.image-viewer-close,
.image-viewer-prev,
.image-viewer-next {
  position: absolute;
  z-index: 1002;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 32px;
  color: var(--primary-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  font-weight: bold;
  line-height: 1;
}

.image-viewer-close:hover,
.image-viewer-prev:hover,
.image-viewer-next:hover {
  background: var(--primary-light);
  color: var(--text-light);
  transform: scale(1.1);
}

.image-viewer-close {
  top: 20px;
  right: 20px;
  font-size: 36px;
}

.image-viewer-prev {
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.image-viewer-next {
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.image-viewer-prev:active,
.image-viewer-next:active {
  transform: translateY(-50%) scale(0.95);
}

/* 移动端适配 */
@media (max-width: 767px) {
  .image-viewer-close,
  .image-viewer-prev,
  .image-viewer-next {
    width: 40px;
    height: 40px;
    font-size: 24px;
  }
  
  .image-viewer-close {
    top: 10px;
    right: 10px;
    font-size: 28px;
  }
  
  .image-viewer-prev {
    left: 10px;
  }
  
  .image-viewer-next {
    right: 10px;
  }
  
  .image-viewer-container {
    max-width: 95%;
    max-height: 85%;
  }
}

/* 下载区域 */
.download-section {
  padding: var(--spacing-3xl) var(--spacing-xl);
  background: transparent;
  margin: var(--spacing-3xl) auto;
  border-radius: 0;
  box-shadow: none;
}

.download-cards {
  display: flex;
  gap: var(--spacing-xl);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.download-card {
  flex: 1;
  min-width: 280px;
  max-width: 400px;
  background: var(--bg-card);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.download-card.ios {
  background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
  color: var(--text-light);
}

/* 白色模式下iOS卡片使用更亮的背景，保持品牌感但更协调 */
[data-theme="light"] .download-card.ios {
  background: linear-gradient(135deg, #4a4a4a 0%, #5a5a5a 100%) !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .download-card.ios .download-card-title,
[data-theme="light"] .download-card.ios p,
[data-theme="light"] .download-card.ios .version-info {
  color: #FFFFFF !important;
}

.download-card.android {
  background: linear-gradient(135deg, var(--success-color) 0%, var(--success-hover) 100%);
  color: var(--text-light);
}

.download-card-title {
  font-size: var(--font-size-2xl);
  font-weight: bold;
  margin-bottom: var(--spacing-md);
}

.download-btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--text-light);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: bold;
  margin: var(--spacing-lg) 0;
  transition: transform var(--transition-base);
}

.download-btn:hover {
  transform: scale(1.05);
}

.download-card.ios .download-btn {
  background: var(--text-light);
  color: #000;
}

.download-card.android .download-btn {
  background: var(--text-light);
  color: var(--success-color);
}

.qr-code {
  margin: var(--spacing-lg) auto;
  width: 150px;
  height: 150px;
  background: var(--text-light);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
}

.version-info {
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin-top: var(--spacing-md);
}

/* Footer */
.footer {
  background: var(--bg-section);
  padding: var(--spacing-2xl) var(--spacing-xl);
  text-align: center;
  color: var(--text-secondary);
  margin-top: var(--spacing-3xl);
  border-top: 1px solid var(--border-color);
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--primary-light);
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  opacity: 0.7;
}

/* 工具类 */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.hidden {
  display: none;
}

/* 加载动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}