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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Noto Serif SC', serif;
  background: #0d0805;
  color: #e0d2c3;
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

/* 主题变量 */
:root {
  --primary-color: #2d1b13;
  --primary-dark: #1a0f0a;
  --primary-light: #4a2c1f;
  --secondary-color: #6b2d34;
  --accent-color: #a64249;
  --text-color: #e0d2c3;
  --text-light: #a99a8a;
  --bg-primary: #0d0805;
  --bg-secondary: #1a0f0a;
  --bg-card: rgba(45, 27, 19, 0.95);
  --border-color: rgba(166, 66, 73, 0.3);
  --shadow-soft: 0 4px 15px rgba(0, 0, 0, 0.3);
  --shadow-lift: 0 8px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(166, 66, 73, 0.2);
  --gradient-primary: linear-gradient(135deg, #2d1b13 0%, #6b2d34 100%);
  --gradient-secondary: linear-gradient(135deg, #a64249 0%, #6b2d34 100%);
  --gradient-bg: radial-gradient(ellipse at top left, rgba(45, 27, 19, 0.3) 0%, transparent 50%),
                 radial-gradient(ellipse at bottom right, rgba(107, 45, 52, 0.3) 0%, transparent 50%),
                 linear-gradient(135deg, #0d0805 0%, #1a0f0a 100%);
  --font-primary: 'Noto Serif SC', serif;
  --font-display: 'Cinzel', serif;
  --border-radius: 10px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --transition: all 0.3s ease;
}

/* 废村背景 */
.village-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  z-index: -1;
  opacity: 0.9;
}

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

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 导航栏 */
.new-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 8, 5, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  border-bottom: 1px solid var(--border-color);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-color);
  transition: var(--transition);
}

.logo-link:hover {
  opacity: 0.8;
}

.logo-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.logo-text h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

.logo-text span {
  font-size: 0.8rem;
  color: var(--accent-color);
  font-weight: 400;
  display: block;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
}

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

.nav-link {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: var(--transition);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-color);
  background: rgba(166, 66, 73, 0.1);
}

.cta-btn {
  background: var(--accent-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
}

.cta-btn:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
  color: white;
}

/* 英雄区域 */
.new-main {
  margin-top: 80px;
}

.hero-section {
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  text-align: center;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  justify-items: center;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  text-align: left;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
  line-height: 1.3;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.highlight {
  color: var(--accent-color);
  text-shadow: 0 0 10px rgba(166, 66, 73, 0.3);
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin: 0;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.primary-btn, .secondary-btn {
  padding: var(--spacing-sm) var(--spacing-2xl);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
}

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

.primary-btn:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

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

.secondary-btn:hover {
  background: rgba(166, 66, 73, 0.1);
  border-color: var(--accent-color);
}

.game-info {
  display: flex;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.info-label {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: 500;
}

.info-value {
  font-size: 1rem;
  color: var(--text-color);
  font-weight: 600;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-container {
  position: relative;
  width: 350px;
  height: 350px;
}

.main-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(166, 66, 73, 0.3));
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.float-element {
  position: absolute;
  width: 20px;
  height: 20px;
  background: rgba(166, 66, 73, 0.3);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.element-1 {
  top: 20%;
  left: 20%;
  animation-delay: 0s;
}

.element-2 {
  top: 60%;
  right: 25%;
  animation-delay: 2s;
}

.element-3 {
  bottom: 20%;
  left: 30%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) scale(1);
    opacity: 0.3;
  }
  50% {
    transform: translateY(-20px) scale(1.2);
    opacity: 0.6;
  }
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  z-index: 1001;
}

.menu-icon {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--text-color);
  position: relative;
  transition: all 0.3s ease;
}

.menu-icon::before,
.menu-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 3px;
  background: var(--text-color);
  transition: all 0.3s ease;
}

.menu-icon::before {
  top: -8px;
}

.menu-icon::after {
  top: 8px;
}

/* 游戏概览 */
.overview-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* 世界观 */
.world-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

.world-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.world-description {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.world-description p {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
}

.world-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.mystical-circle {
  position: relative;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(166, 66, 73, 0.1) 0%, transparent 70%);
  display: flex;
  justify-content: center;
  align-items: center;
  animation: pulse 4s ease-in-out infinite;
}

.circle-inner {
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  border: 2px solid rgba(166, 66, 73, 0.3);
  animation: rotate 20s linear infinite;
}

.circle-core {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--accent-color);
  opacity: 0.3;
  box-shadow: 0 0 30px rgba(166, 66, 73, 0.5);
  animation: float 6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
}

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

/* 游戏玩法 */
.gameplay-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

.gameplay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.gameplay-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  text-align: center;
}

.gameplay-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lift);
  border-color: var(--accent-color);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: var(--spacing-sm);
}

.card-description {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.7;
}

/* 开发动态 */
.updates-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

.updates-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.timeline-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  position: relative;
  padding-left: var(--spacing-2xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: var(--spacing-md);
  top: var(--spacing-lg);
  width: 12px;
  height: 12px;
  background: var(--accent-color);
  border-radius: 50%;
  border: 3px solid var(--bg-secondary);
  z-index: 1;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: var(--spacing-md) + 5px;
  top: calc(var(--spacing-lg) + 12px);
  width: 2px;
  height: calc(100% - var(--spacing-lg) - 12px);
  background: var(--border-color);
}

.timeline-item:last-child::after {
  display: none;
}

.timeline-date {
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}

.timeline-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: var(--spacing-sm);
}

.timeline-content p {
  color: var(--text-light);
  line-height: 1.7;
}

/* 游戏画面 */
.gallery-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

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

.gallery-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

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

.gallery-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

/* 攻略专题 */
.guide-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

.guide-content {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.guide-chapter {
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-lg);
  background: rgba(45, 27, 19, 0.3);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--primary-color);
  transition: var(--transition);
}

.guide-chapter:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-soft);
}

.guide-chapter:last-child {
  margin-bottom: 0;
}

.guide-chapter-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.guide-chapter-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.guide-card {
  background: rgba(26, 15, 10, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.guide-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.guide-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: var(--spacing-sm);
}

.guide-card-content {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.7;
}

.guide-card-content p {
  margin-bottom: var(--spacing-md);
}

.guide-card-content p:last-child {
  margin-bottom: 0;
}

.guide-list {
  list-style: none;
  padding-left: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.guide-list li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: var(--spacing-lg);
}

.guide-list li::before {
  content: '✨';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-color);
  font-weight: bold;
}

.guide-list li strong {
  color: var(--text-color);
  font-weight: 600;
}

/* FAQ样式 */
.faq-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-soft);
}

.faq-item:hover {
  box-shadow: var(--shadow-lift);
}

.faq-question {
  font-weight: 600;
  color: var(--text-color);
  padding: var(--spacing-md);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(45, 27, 19, 0.3);
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(45, 27, 19, 0.5);
}

.faq-question::after {
  content: '▼';
  font-size: 0.8rem;
  color: var(--primary-color);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-answer {
  padding: 0 var(--spacing-md);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background: var(--bg-card);
}

.faq-answer p {
  margin: var(--spacing-md) 0;
  color: var(--text-light);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: var(--spacing-md);
}

.faq-item.active .faq-question::after {
  transform: rotate(180deg);
}

/* 下载区域 */
.download-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.download-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lift);
}

.platform-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.platform-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: var(--spacing-xs);
}

.platform-desc {
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
}

.download-btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-2xl);
  background: var(--accent-color);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
  margin-top: var(--spacing-sm);
}

.download-btn:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

/* 联系部分 */
.contact-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.contact-section h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: var(--spacing-md);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: 1.1rem;
  color: var(--text-light);
}

.contact-link {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.contact-link:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* 页脚 */
.footer-section {
  background: rgba(13, 8, 5, 0.95);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-2xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-color);
  margin-bottom: var(--spacing-md);
}

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

.footer-logo-text h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

.footer-logo-text span {
  font-size: 0.7rem;
  color: var(--accent-color);
  display: block;
}

.footer-description {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer-section h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.footer-section h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent-color);
  border-radius: 1px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: var(--spacing-xs);
}

.footer-copyright {
  text-align: center;
  color: var(--text-light);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.footer-copyright p {
  margin: 0;
}

.footer-copyright a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.footer-copyright a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    height: auto;
    padding: var(--spacing-sm) var(--spacing-md);
    gap: var(--spacing-sm);
  }
  
  .main-nav {
    width: 100%;
  }
  
  .nav-list {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xs);
  }
  
  .nav-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .world-content {
    grid-template-columns: 1fr;
  }
  
  .gameplay-grid,
  .gallery-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-img {
    height: 200px;
  }
  
  .guide-chapter-content {
    grid-template-columns: 1fr;
  }
  
  .timeline-item {
    padding-left: var(--spacing-lg);
  }
  
  .timeline-item::before {
    left: 10px;
  }
  
  .timeline-item::after {
    left: 15px;
  }
  
  .contact-item {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-section h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

/* 滚动显示动画 */
.reveal-element {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-element.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 减少动画触发频率 */
@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;
  }
  
  .reveal-element {
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
}

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

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

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

::-webkit-scrollbar-track {
  background: rgba(13, 8, 5, 0.5);
}

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

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

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

/* 禁用按钮样式 */
.btn:disabled,
.download-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 辅助类 */
.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: var(--spacing-xs);
}

.mt-2 {
  margin-top: var(--spacing-sm);
}

.mt-3 {
  margin-top: var(--spacing-md);
}

.mb-1 {
  margin-bottom: var(--spacing-xs);
}

.mb-2 {
  margin-bottom: var(--spacing-sm);
}

.mb-3 {
  margin-bottom: var(--spacing-md);
}