:root {
  /* 五行颜色系统 */
  --color-gold: #FFD700;      /* 金 */
  --color-green: #4CAF50;     /* 木 */
  --color-blue: #2196F3;      /* 水 */
  --color-red: #F44336;       /* 火 */
  --color-brown: #8D6E63;     /* 土 */
  
  /* 基础颜色 */
  --color-primary: #8C60FF;   /* 紫色作为主色调，象征神秘与力量 */
  --color-secondary: #FF7D54; /* 橙色作为辅助色，象征活力与能量 */
  --color-accent: #00E5E0;    /* 青色作为强调色，象征灵气与神秘 */
  
  /* 中性色 */
  --color-text: #333333;
  --color-text-light: #7A7A7A;
  --color-background: #FFFFFF;
  --color-background-dark: #F5F5F5;
  --color-divider: #E0E0E0;
  
  /* 状态颜色 */
  --color-success: #4CAF50;
  --color-warning: #FFC107;
  --color-error: #F44336;
  
  /* 尺寸 */
  --size-padding-small: 0.5rem;
  --size-padding: 1rem;
  --size-padding-large: 2rem;
  --size-radius: 0.5rem;
  --size-button-height: 3rem;
  
  /* 字体 */
  --font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-size-small: 0.875rem;
  --font-size: 1rem;
  --font-size-large: 1.25rem;
  --font-size-xlarge: 1.5rem;
  --font-size-xxlarge: 2rem;
  --font-size-title: 2.5rem;
  
  /* 动画 */
  --animation-speed: 0.3s;
  --animation-function: ease-in-out;
}

/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size);
  color: var(--color-text);
  line-height: 1.6;
  background-color: var(--color-background);
}

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

a {
  text-decoration: none;
  color: var(--color-primary);
  transition: all var(--animation-speed) var(--animation-function);
}

ul {
  list-style: none;
}

/* 容器 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--size-padding);
}

/* 导航栏 */
.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.logo img {
  height: 3rem;
}

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

.nav-links a {
  color: white;
  font-weight: 600;
  position: relative;
}

.nav-links a:after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  left: 0;
  bottom: -5px;
  transition: width var(--animation-speed) var(--animation-function);
}

.nav-links a:hover:after {
  width: 100%;
}

.language-selector select {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 0.5rem;
  border-radius: var(--size-radius);
  cursor: pointer;
}

/* 英雄区 */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #281f3e 0%, #3b1e5b 100%);
  color: white;
  position: relative;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  overflow: hidden;
}

.hero:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../img/hero-bg-pattern.svg');
  background-size: cover;
  opacity: 0.1;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 10;
  width: 50%;
  padding-left: var(--size-padding-large);
}

.hero h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-accent);
}

.hero p {
  font-size: var(--font-size-large);
  margin-bottom: 2.5rem;
  max-width: 600px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
}

.cta-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--font-size-large);
  transition: all var(--animation-speed) var(--animation-function);
  box-shadow: 0 4px 10px rgba(0, 229, 224, 0.3);
}

.cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 229, 224, 0.4);
  background: #00f5f0;
}

.cta-secondary {
  display: inline-block;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--font-size-large);
  transition: all var(--animation-speed) var(--animation-function);
}

.cta-secondary:hover {
  background: rgba(0, 229, 224, 0.1);
  transform: translateY(-3px);
}

.hero-video {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

.hero-video video, .hero-video img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* 脉动按钮效果 */
.pulse-button {
  position: relative;
}

.pulse-button:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50px;
  background: var(--color-accent);
  z-index: -1;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 0.8;
    transform: scale(1);
  }
  70% {
    opacity: 0;
    transform: scale(1.5);
  }
  100% {
    opacity: 0;
    transform: scale(1.5);
  }
}

/* 痛点部分 */
.pain-points {
  padding: 6rem 0;
  background-color: var(--color-background-dark);
}

.pain-points h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 4rem;
  color: var(--color-text);
}

.pain-points-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.pain-point {
  background: white;
  padding: 2rem;
  border-radius: var(--size-radius);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all var(--animation-speed) var(--animation-function);
}

.pain-point:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pain-point-icon {
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border-radius: 50%;
  background: var(--color-background-dark);
  color: var(--color-primary);
}

.pain-point-icon svg {
  width: 2rem;
  height: 2rem;
}

.pain-point h3 {
  font-size: var(--font-size-large);
  margin-bottom: 1rem;
  color: var(--color-text);
}

.pain-point p {
  color: var(--color-text-light);
}

/* 解决方案部分 */
.solution {
  padding: 6rem 0;
  background-color: white;
}

.solution h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.section-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
  font-size: var(--font-size-large);
  color: var(--color-text-light);
}

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

.solution-feature {
  text-align: center;
  padding: 2rem;
  transition: all var(--animation-speed) var(--animation-function);
}

.feature-detail-image {
  max-width: 100%;
  height: auto;
  margin-top: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.feature-detail-image:hover {
  transform: scale(1.02);
}

.solution-feature:hover {
  transform: translateY(-10px);
}

.solution-icon {
  width: 10rem;
  height: 10rem;
  margin: 0 auto 1.5rem;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.elemental-system {
  background-image: url('../img/elemental-system.svg');
}

.evolution-system {
  background-image: url('../img/evolution-system.svg');
}

.skill-system {
  background-image: url('../img/skill-system.svg');
}

.map-system {
  background-image: url('../img/map-system.svg');
}

.solution-feature h3 {
  font-size: var(--font-size-large);
  margin-bottom: 1rem;
  color: var(--color-text);
}

.solution-feature p {
  color: var(--color-text-light);
}

/* 游戏特色部分 */
.features {
  padding: 6rem 0;
  background-color: var(--color-background-dark);
}

.features h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 4rem;
  color: var(--color-text);
}

.feature-card {
  display: flex;
  margin-bottom: 4rem;
  background: white;
  border-radius: var(--size-radius);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card.reverse {
  flex-direction: row-reverse;
}

.feature-content {
  flex: 1;
  padding: 3rem;
}

.feature-image {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 2.5rem;
}

.feature-image img {
  width: 90%;
  max-width: 400px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
  transition: all 0.3s ease;
}

.feature-image img:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.18);
}

.feature-card h3 {
  font-size: var(--font-size-xlarge);
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.feature-card p {
  margin-bottom: 1.5rem;
  color: var(--color-text-light);
}

.feature-list {
  padding-left: 1.5rem;
}

.feature-list li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.5rem;
}

.feature-list li:before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-primary);
  border-radius: 50%;
}

/* 游戏玩法部分 */
.gameplay {
  padding: 6rem 0;
  background-color: white;
}

.gameplay h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 4rem;
  color: var(--color-text);
}

.gameplay-video {
  width: 100%;
  max-width: 800px;
  margin: 0 auto 4rem;
  border-radius: var(--size-radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.gameplay-video iframe {
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
}

.gameplay-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.gameplay-step {
  text-align: center;
  padding: 2rem;
  background: var(--color-background-dark);
  border-radius: var(--size-radius);
  transition: all var(--animation-speed) var(--animation-function);
}

.gameplay-step:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1.5rem;
  background: var(--color-primary);
  color: white;
  font-size: var(--font-size-large);
  font-weight: 700;
  border-radius: 50%;
}

.gameplay-step h3 {
  font-size: var(--font-size-large);
  margin-bottom: 1rem;
  color: var(--color-text);
}

.gameplay-step p {
  color: var(--color-text-light);
}

/* 游戏截图部分 */
.screenshots {
  padding: 6rem 0;
  background-color: var(--color-background-dark);
}

.screenshots h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.style-section {
  margin-bottom: 4rem;
}

.style-section h3 {
  font-size: var(--font-size-xlarge);
  text-align: center;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.style-section p {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--color-text-light);
}

.screenshot-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.app-iframe {
  width: 375px;
  height: 812px;
  border: 12px solid #222;
  border-radius: 40px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.full-demo-link {
  text-align: center;
  margin-top: 3rem;
}

.full-demo-link p {
  color: var(--color-text-light);
  margin-top: 1rem;
}

/* 玩家反馈部分 */
.testimonials {
  padding: 6rem 0;
  background-color: white;
}

.testimonials h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 4rem;
  color: var(--color-text);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial {
  background: var(--color-background-dark);
  padding: 2rem;
  border-radius: var(--size-radius);
  transition: all var(--animation-speed) var(--animation-function);
}

.testimonial:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.testimonial-rating {
  color: var(--color-warning);
  font-size: var(--font-size-large);
  margin-bottom: 1rem;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.testimonial-author img {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  margin-right: 1rem;
  object-fit: cover;
}

.author-name {
  font-weight: 600;
  color: var(--color-text);
}

.author-meta {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

/* 下载部分 */
.download {
  padding: 6rem 0;
  background: linear-gradient(135deg, #281f3e 0%, #3b1e5b 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.download:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../img/download-bg-pattern.svg');
  background-size: cover;
  opacity: 0.05;
  z-index: 1;
}

.download h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 1.5rem;
  color: white;
  position: relative;
  z-index: 2;
}

.download .section-intro {
  color: rgba(255, 255, 255, 0.8);
  position: relative;
  z-index: 2;
}

.download-options {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  position: relative;
  z-index: 2;
}

.download-option {
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 3rem 2rem;
  border-radius: var(--size-radius);
  backdrop-filter: blur(5px);
  transition: all var(--animation-speed) var(--animation-function);
  max-width: 300px;
}

.download-option:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
}

.platform-icon {
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.platform-icon svg {
  width: 2.5rem;
  height: 2.5rem;
}

.download-option h3 {
  font-size: var(--font-size-large);
  margin-bottom: 1.5rem;
  color: white;
}

.download-button {
  display: inline-block;
  transition: all var(--animation-speed) var(--animation-function);
}

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

.download-button img {
  height: 3rem;
}

.web-button {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--font-size-large);
  transition: all var(--animation-speed) var(--animation-function);
  box-shadow: 0 4px 10px rgba(0, 229, 224, 0.3);
}

.web-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 229, 224, 0.4);
  background: #00f5f0;
}

/* 订阅部分 */
.newsletter {
  padding: 6rem 0;
  background-color: var(--color-background-dark);
}

.newsletter-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter h2 {
  font-size: var(--font-size-title);
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.newsletter p {
  margin-bottom: 2rem;
  color: var(--color-text-light);
}

.newsletter-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 1rem 1.5rem;
  border: 1px solid var(--color-divider);
  border-radius: 50px 0 0 50px;
  font-size: var(--font-size);
  outline: none;
}

.newsletter-form button {
  background: var(--color-primary);
  color: white;
  padding: 1rem 2rem;
  border: none;
  border-radius: 0 50px 50px 0;
  font-size: var(--font-size);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--animation-speed) var(--animation-function);
}

.newsletter-form button:hover {
  background: #7b50e0;
}

.privacy-note {
  font-size: var(--font-size-small);
  margin-top: 1rem;
  color: var(--color-text-light);
}

/* 页脚 */
footer {
  background-color: #281f3e;
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.footer-logo {
  flex: 0 0 300px;
  margin-bottom: 2rem;
}

.footer-logo img {
  height: 3rem;
  margin-bottom: 1rem;
}

.footer-logo p {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
}

.footer-links-column {
  min-width: 150px;
  margin-bottom: 2rem;
}

.footer-links-column h4 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: var(--font-size-large);
}

.footer-links-column a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.75rem;
}

.footer-links-column a:hover {
  color: white;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  transition: all var(--animation-speed) var(--animation-function);
}

.social-links a:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

.social-links svg {
  width: 1.2rem;
  height: 1.2rem;
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
}

/* 比赛活动 Section */
.tournaments {
  padding: 6rem 0;
  background-color: white;
}

.tournaments h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.tournaments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tournament-card {
  background-color: var(--color-background-dark);
  border-radius: var(--size-radius);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.tournament-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.tournament-image {
  height: 200px;
  overflow: hidden;
}

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

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

.tournament-content {
  padding: 1.5rem;
}

.tournament-content h3 {
  font-size: var(--font-size-large);
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.tournament-date {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  margin-bottom: 1rem;
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: rgba(140, 96, 255, 0.1);
  border-radius: 20px;
}

.prize {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-divider);
}

.prize-label {
  font-weight: bold;
  color: var(--color-text);
}

.prize-value {
  color: var(--color-secondary);
}

/* 社区互动 Section */
.community {
  padding: 6rem 0;
  background-color: var(--color-background-dark);
}

.community h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.community-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.community-feature {
  background-color: white;
  border-radius: var(--size-radius);
  padding: 2rem;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.community-feature:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.community-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background-color: rgba(140, 96, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.community-feature h3 {
  font-size: var(--font-size-large);
  margin-bottom: 1rem;
  color: var(--color-text);
}

.community-feature p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.community-link {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background-color: var(--color-primary);
  color: white;
  border-radius: 30px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.community-link:hover {
  background-color: #7b50e0;
  transform: translateY(-3px);
}

/* 更新日志 Section */
.updates {
  padding: 6rem 0;
  background-color: white;
}

.updates h2 {
  font-size: var(--font-size-title);
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.update-timeline {
  max-width: 800px;
  margin: 3rem auto 0;
  position: relative;
}

.update-timeline::before {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--color-divider);
  top: 0;
  bottom: 0;
  left: 120px;
  margin-left: -2px;
}

.update-item {
  padding: 10px 40px 10px 140px;
  position: relative;
  background-color: inherit;
  margin-bottom: 2rem;
}

.update-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 118px;
  background-color: white;
  border: 4px solid var(--color-primary);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.update-item.future::after {
  border-color: var(--color-secondary);
}

.update-version {
  font-weight: bold;
  color: var(--color-primary);
  position: absolute;
  width: 120px;
  text-align: right;
  left: 0;
  top: 15px;
}

.update-version.future {
  color: var(--color-secondary);
}

.update-date {
  color: var(--color-text-light);
  font-size: var(--font-size-small);
  margin-bottom: 0.5rem;
}

.update-content {
  background-color: var(--color-background-dark);
  padding: 1.5rem;
  border-radius: var(--size-radius);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.update-content h3 {
  font-size: var(--font-size-large);
  margin-bottom: 1rem;
  color: var(--color-text);
}

.update-list {
  padding-left: 1.5rem;
}

.update-list li {
  margin-bottom: 0.5rem;
  position: relative;
}

.update-list li::before {
  content: '';
  position: absolute;
  left: -15px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.update-item.future .update-list li::before {
  background-color: var(--color-secondary);
}

@media (max-width: 768px) {
  .update-timeline::before {
    left: 50px;
  }
  
  .update-item::after {
    left: 48px;
  }
  
  .update-version {
    width: 60px;
  }
  
  .update-item {
    padding-left: 80px;
  }
}

@media (max-width: 1024px) {
  .hero-content {
    width: 60%;
  }
  
  .hero-video {
    width: 40%;
  }
  
  .hero h1 {
    font-size: 3rem;
  }
  
  .hero h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 768px) {
  .main-nav {
    flex-direction: column;
    gap: 1rem;
    position: relative;
    background: #281f3e;
    padding: 1rem;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  .hero {
    flex-direction: column;
    padding-top: 0;
  }
  
  .hero-content {
    width: 100%;
    padding: 8rem 2rem 2rem;
    text-align: center;
  }
  
  .hero p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-video {
    position: relative;
    width: 100%;
    transform: none;
    top: auto;
    height: auto;
    margin-top: 2rem;
    padding: 0 2rem 4rem;
  }
  
  .feature-card, .feature-card.reverse {
    flex-direction: column;
  }
  
  .feature-content, .feature-image {
    width: 100%;
  }
  
  .footer-content {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero h2 {
    font-size: 1.5rem;
  }
  
  .hero p {
    font-size: var(--font-size);
  }
  
  .hero-cta {
    flex-direction: column;
    gap: 1rem;
  }
  
  .cta-primary, .cta-secondary {
    width: 100%;
    text-align: center;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .newsletter-form input[type="email"] {
    border-radius: 50px;
    margin-bottom: 1rem;
  }
  
  .newsletter-form button {
    border-radius: 50px;
  }
}

/* 更新图片显示效果 */
.feature-image img,
.hero-video img,
.testimonial-author img,
.screenshot-container img {
  object-fit: cover;
  transition: transform 0.5s ease, box-shadow 0.3s ease;
  border-radius: var(--size-radius);
}

.feature-image img:hover,
.hero-video img:hover,
.screenshot-container img:hover {
  transform: scale(1.03);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

/* 添加图片加载动画 */
@keyframes imageLoad {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-image img,
.hero-video img,
.testimonial-author img,
.screenshot-container img {
  animation: imageLoad 0.6s ease forwards;
}

/* 图片懒加载样式 */
img.lazy-load {
  opacity: 0;
  transition: opacity 0.5s ease;
}

img.lazy-load.loaded {
  opacity: 1;
}