/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 根变量定义 */
:root {
  --primary-color: #e63946;
  --secondary-color: #457b9d;
  --dark-bg: #121212;
  --darker-bg: #0a0a0a;
  --text-color: #f1faee;
  --text-muted: #a8dadc;
  --border-color: rgba(230, 57, 70, 0.3);
  --card-bg: rgba(18, 18, 18, 0.8);
  --card-hover: rgba(230, 57, 70, 0.1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  --transition: all 0.3s ease;
}

/* 基础样式 */
body {
  font-family: 'Noto Sans SC', sans-serif;
  background-color: var(--darker-bg);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* 背景效果 */
.bg-effect {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(230, 57, 70, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(69, 123, 157, 0.1) 0%, transparent 50%),
    linear-gradient(to bottom, transparent 0%, var(--darker-bg) 100%);
  z-index: -1;
  pointer-events: none;
}

/* 容器样式 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 头部样式 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
}

/* logo样式 */
.logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-color);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.game-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 2px;
}

.domain {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* 语言切换 */
.lang-switch {
  display: flex;
  gap: 8px;
  margin-right: 30px;
}

.lang-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  background-color: rgba(230, 57, 70, 0.2);
  color: var(--text-color);
}

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

/* 导航菜单 */
.navigation {
  display: flex;
  align-items: center;
  gap: 30px;
}

.navigation a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.navigation a:hover {
  color: var(--text-color);
}

.navigation a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.navigation a:hover::after {
  width: 100%;
}

/* 响应式语言切换 */
@media (max-width: 992px) {
  .lang-switch {
    position: absolute;
    top: 20px;
    right: 80px;
    margin-right: 0;
  }
  
  .navigation {
    margin-top: 20px;
  }
}

/* 按钮样式 */
.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-color);
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: #c1121f;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-color);
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
  background-color: rgba(230, 57, 70, 0.1);
  transform: translateY(-2px);
}

/* 菜单切换按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.menu-toggle span {
  width: 30px;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 10px;
  transition: var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

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

.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* 英雄区域 */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

.sub-title {
  font-size: 16px;
  color: var(--primary-color);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-text h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 64px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 30px;
  color: var(--text-color);
  text-shadow: 0 0 20px rgba(230, 57, 70, 0.5);
}

.description {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 30px;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.tag {
  background-color: rgba(230, 57, 70, 0.2);
  color: var(--primary-color);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  border: 1px solid var(--primary-color);
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

/* 英雄区域视觉效果 */
.hero-visual {
  position: relative;
}

.visual-box {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.main-image {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.visual-box:hover .main-image {
  transform: scale(1.05);
}

.visual-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent 0%, rgba(10, 10, 10, 0.8) 100%);
  display: flex;
  align-items: flex-end;
  padding: 30px;
}

.overlay-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-color);
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.8);
}

/* 通用section样式 */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 36px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
  letter-spacing: 2px;
}

.section-description {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
}

/* 故事背景部分 */
.story {
  background-color: var(--dark-bg);
}

.story-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.story-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.story-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.story-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
  background-color: var(--card-hover);
}

.story-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 15px;
}

.story-card p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* 游戏特色部分 */
.features {
  background-color: var(--darker-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 30px;
  transition: var(--transition);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
  background-color: var(--card-hover);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.feature-card p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* 游戏截图部分 */
.gallery {
  background-color: var(--dark-bg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.gallery-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}

.gallery-img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow);
}

/* 下载部分 */
.download {
  background-color: var(--darker-bg);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.download-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 40px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(230, 57, 70, 0.1), transparent);
  transform: rotate(45deg);
  transition: var(--transition);
  opacity: 0;
}

.download-card:hover::before {
  animation: shine 1.5s ease-in-out;
  opacity: 1;
}

@keyframes shine {
  0% {
    transform: translateX(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) rotate(45deg);
  }
}

.download-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
}

.download-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 10px;
}

.platform-info {
  color: var(--text-muted);
  margin-bottom: 30px;
  font-size: 14px;
}

.btn-download {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--text-color);
  padding: 12px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-download:hover {
  background-color: #c1121f;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
}

/* 页脚部分 */
.footer {
  background-color: var(--darker-bg);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 50px;
  margin-bottom: 40px;
}

.footer-info {
  max-width: 600px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.footer-logo-img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-color);
}

.footer-game-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 2px;
}

.footer-description {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--primary-color);
  transform: translateX(5px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
}

.copyright {
  color: var(--text-muted);
  font-size: 14px;
}

.friend-links {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 14px;
}

.friend-links span {
  color: var(--text-muted);
}

.friend-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

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

/* 响应式设计 */
@media (max-width: 992px) {
  .navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: rgba(10, 10, 10, 0.95);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    transition: var(--transition);
    border-left: 1px solid var(--border-color);
  }

  .navigation.open {
    right: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text h1 {
    font-size: 48px;
  }

  .hero-buttons {
    justify-content: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  .hero-text h1 {
    font-size: 36px;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .friend-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 576px) {
  .hero {
    padding: 100px 0 40px;
  }

  .hero-text h1 {
    font-size: 28px;
  }

  .section {
    padding: 60px 0;
  }

  .story-card, .feature-card, .download-card {
    padding: 20px;
  }
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #c1121f;
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
}

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

section {
  animation: fadeIn 0.8s ease-in-out;
}

/* 防止文本选择 */
.no-select {
  user-select: none;
}

/* 焦点样式 */
:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* 无障碍支持 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}