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

/* 颜色变量 */
:root {
  --primary-bg: #0a0e17;
  --secondary-bg: #1a1f2e;
  --accent-color: #00ffcc;
  --text-primary: #ffffff;
  --text-secondary: #b0b8c1;
  --text-muted: #6c757d;
  --border-color: #2a3141;
  --card-bg: #1e2333;
  --success-color: #00ffcc;
  --warning-color: #ffd700;
  --danger-color: #ff4757;
  --gradient-bg: linear-gradient(135deg, #0a0e17 0%, #1a1f2e 100%);
  --gradient-accent: linear-gradient(135deg, #00ffcc 0%, #00b39f 100%);
}

/* 全局样式 */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gradient-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* 导航栏 */
header {
  background: rgba(10, 14, 23, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent-color);
}

.nav-buttons {
  display: flex;
  gap: 1rem;
}

/* 按钮样式 */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 255, 204, 0.3);
}

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

.btn-secondary:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* 英雄区域 */
.hero {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-image {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  z-index: 1;
}

.hero-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 255, 204, 0.2);
}

/* 统计数据 */
.stats {
  background: var(--secondary-bg);
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.stat-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* 特性区域 */
.features {
  padding: 6rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

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

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

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-card:hover::before {
  transform: scaleY(1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--secondary-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: var(--accent-color);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* 平台介绍 */
.platform {
  background: var(--secondary-bg);
  padding: 6rem 0;
  border-top: 1px solid var(--border-color);
}

.platform-content {
  display: flex;
  align-items: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.platform-text {
  flex: 1;
  min-width: 300px;
}

.platform-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.platform-text p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.platform-features {
  list-style: none;
  margin-bottom: 2rem;
}

.platform-features li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.platform-features li i {
  color: var(--accent-color);
  font-size: 1.2rem;
}

.platform-image {
  flex: 1;
  min-width: 300px;
}

.platform-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* 会员体系 */
.membership {
  padding: 6rem 0;
}

.membership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.membership-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.membership-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--accent-color);
}

.membership-card.featured {
  border-color: var(--accent-color);
  box-shadow: 0 0 30px rgba(0, 255, 204, 0.2);
}

.membership-card.featured::before {
  content: '推荐';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: var(--primary-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.membership-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.membership-card .price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.membership-card .price span {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.membership-card ul {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
}

.membership-card ul li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.membership-card ul li i {
  color: var(--accent-color);
  font-size: 1.2rem;
}

/* 新闻区域 */
.news {
  padding: 6rem 0;
  background: var(--secondary-bg);
  border-top: 1px solid var(--border-color);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.news-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.news-content {
  padding: 1.5rem;
}

.news-date {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.news-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.news-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.news-card a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.news-card a:hover {
  text-decoration: underline;
}

/* 下载区域 */
.download {
  padding: 6rem 0;
  text-align: center;
}

.download-content {
  max-width: 800px;
  margin: 0 auto;
}

.download h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.download p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.download-buttons {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.download-btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  border-color: var(--accent-color);
}

.download-btn i {
  font-size: 2rem;
  color: var(--accent-color);
}

.download-btn-content {
  text-align: left;
}

.download-btn-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.download-btn-content p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

/* 页脚 */
footer {
  background: var(--primary-bg);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

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

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-logo span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-about {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--secondary-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  text-decoration: none;
}

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

.footer-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-bottom-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
  color: var(--accent-color);
}

/* 面包屑导航 */
.breadcrumb {
  padding: 1rem 0;
  background: var(--secondary-bg);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.breadcrumb-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumb-nav a:hover {
  color: var(--accent-color);
}

.breadcrumb-nav span {
  color: var(--text-muted);
}

.breadcrumb-nav .current {
  color: var(--accent-color);
}

/* 新闻页面 */
.news-page {
  padding: 4rem 0;
}

.news-header {
  margin-bottom: 3rem;
}

.news-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.news-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.news-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.news-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.news-item-content {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.news-item-image {
  flex: 0 0 300px;
  height: 200px;
  overflow: hidden;
  border-radius: 8px;
}

.news-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-item-text {
  flex: 1;
  min-width: 300px;
}

.news-item-date {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.news-item-text h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.news-item-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.news-item-text a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.news-item-text a:hover {
  text-decoration: underline;
}

/* 关于我们页面 */
.about-page {
  padding: 4rem 0;
}

.about-content {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.about-text {
  flex: 1;
  min-width: 300px;
}

.about-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.about-image {
  flex: 1;
  min-width: 300px;
}

.about-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.about-feature {
  text-align: center;
  padding: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.about-feature:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--accent-color);
}

.about-feature-icon {
  width: 80px;
  height: 80px;
  background: var(--secondary-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: var(--accent-color);
}

.about-feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.about-feature p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* 平台介绍页面 */
.platform-page {
  padding: 4rem 0;
}

.platform-page h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.platform-page p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.platform-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.platform-feature {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.platform-feature:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--accent-color);
}

.platform-feature h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.platform-feature h3 i {
  color: var(--accent-color);
  font-size: 1.5rem;
}

.platform-feature p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.platform-feature ul {
  list-style: none;
}

.platform-feature ul li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.platform-feature ul li i {
  color: var(--accent-color);
  font-size: 1.1rem;
}

/* 下载页面 */
.download-page {
  padding: 4rem 0;
}

.download-page h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-align: center;
}

.download-page p {
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 1.1rem;
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.download-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.download-option {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.download-option:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--accent-color);
}

.download-option-icon {
  width: 100px;
  height: 100px;
  background: var(--secondary-bg);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 3rem;
  color: var(--accent-color);
}

.download-option h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.download-option p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero {
    padding: 4rem 0;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero-image {
    position: static;
    transform: none;
    width: 100%;
    margin-top: 2rem;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .platform-content {
    flex-direction: column;
    text-align: center;
  }
  
  .about-content {
    flex-direction: column;
    text-align: center;
  }
  
  .news-item-content {
    flex-direction: column;
  }
  
  .news-item-image {
    flex: 0 0 200px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-bottom-links {
    justify-content: center;
  }
  
  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .download-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .membership-card {
    padding: 1.5rem;
  }
  
  .news-card {
    padding: 1rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-social {
    justify-content: center;
  }
}

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

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

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

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

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

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

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--accent-color);
  animation: spin 1s ease-in-out infinite;
}

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

/* 工具类 */
.text-accent {
  color: var(--accent-color);
}

.mt-1 {
  margin-top: 1rem;
}

.mt-2 {
  margin-top: 2rem;
}

.mt-3 {
  margin-top: 3rem;
}

.mb-1 {
  margin-bottom: 1rem;
}

.mb-2 {
  margin-bottom: 2rem;
}

.mb-3 {
  margin-bottom: 3rem;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

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

.justify-between {
  justify-content: space-between;
}

.gap-1 {
  gap: 1rem;
}

.gap-2 {
  gap: 2rem;
}

.w-full {
  width: 100%;
}

.max-w-4xl {
  max-width: 56rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}