* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(160deg, #0b1a2e 0%, #142b44 40%, #1b3a5e 100%);
  color: #dbeafe;
  line-height: 1.7;
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 26, 46, 0.75);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(125, 211, 252, 0.15);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 0;
}

.nav-links a {
  color: #bae6fd;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 30px;
  transition: all 0.3s ease;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

.nav-links a:hover {
  background: rgba(14, 165, 233, 0.25);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
  transform: translateY(-2px);
}

/* Hero 区域 */
.hero-section {
  position: relative;
  padding: 80px 0 60px;
  text-align: center;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -20%;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero-section h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 32px;
  background: linear-gradient(135deg, #e0f2fe 0%, #38bdf8 50%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(14, 165, 233, 0.2);
}

.geo-intro {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(125, 211, 252, 0.2);
  border-radius: 20px;
  font-size: 16px;
  line-height: 1.8;
  color: #bae6fd;
  text-align: left;
}

.geo-intro p {
  margin-bottom: 12px;
}

.geo-intro p:last-child {
  margin-bottom: 0;
}

/* 通用 section */
.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: #f0f9ff;
  background: linear-gradient(135deg, #7dd3fc, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.section-header p {
  color: #94a3b8;
  font-size: 15px;
}

/* 卡片网格 */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(125, 211, 252, 0.15);
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s ease;
}

.card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(34, 211, 238, 0.4);
  box-shadow: 0 8px 30px rgba(14, 165, 233, 0.2);
  transform: translateY(-4px);
}

.card .icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: block;
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #e0f2fe;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.7;
}

/* 图片样式 */
.card-img {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 16px;
  display: block;
  object-fit: cover;
  border: 1px solid rgba(125, 211, 252, 0.2);
}

/* 统计数字 */
.stat-number {
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(135deg, #7dd3fc, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: #94a3b8;
  margin-top: 8px;
}

/* 新闻卡片 */
.news-card {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(125, 211, 252, 0.12);
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s ease;
}

.news-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: 0 8px 30px rgba(14, 165, 233, 0.15);
  transform: translateY(-3px);
}

.news-date {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #22d3ee;
  background: rgba(34, 211, 238, 0.12);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.news-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: #e0f2fe;
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-card p {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.7;
}

/* FAQ 样式 */
.faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(125, 211, 252, 0.12);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(34, 211, 238, 0.3);
}

.faq-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: #bae6fd;
  margin-bottom: 12px;
  line-height: 1.5;
}

.faq-item p {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.8;
}

/* CTA */
.cta-section {
  padding: 80px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 36px;
  font-weight: 700;
  color: #f0f9ff;
  margin-bottom: 16px;
}

.cta-section p {
  color: #94a3b8;
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  padding: 14px 38px;
  border-radius: 40px;
  background: linear-gradient(135deg, #0ea5e9, #22d3ee);
  color: #0b1a2e;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.3);
  border: none;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 211, 238, 0.5);
}

/* 页脚 */
.site-footer {
  background: rgba(8, 18, 32, 0.9);
  border-top: 1px solid rgba(125, 211, 252, 0.1);
  padding: 40px 0 30px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.footer-grid h4 {
  font-size: 16px;
  color: #bae6fd;
  margin-bottom: 12px;
}

.footer-grid p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: #38bdf8;
}

.copyright {
  text-align: center;
  padding-top: 24px;
  margin-top: 30px;
  border-top: 1px solid rgba(125, 211, 252, 0.08);
  color: #64748b;
  font-size: 13px;
  line-height: 1.8;
}

/* 响应式 */
@media (max-width: 900px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-section h1 {
    font-size: 30px;
  }
}

@media (max-width: 600px) {
  .grid-4, .grid-3 {
    grid-template-columns: 1fr;
  }
  .nav-links a {
    padding: 6px 14px;
    font-size: 14px;
  }
}

/* 其他组件样式 */
.testimonial-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(125, 211, 252, 0.12);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.testimonial-item:hover {
  border-color: rgba(34, 211, 238, 0.3);
}

.testimonial-item .quote {
  font-size: 28px;
  margin-bottom: 8px;
}

.testimonial-item p {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 12px;
}

.testimonial-item .author {
  color: #7dd3fc;
  font-weight: 600;
  font-size: 14px;
}

.highlight-img {
  border-radius: 14px;
  width: 100%;
  height: 180px;
  object-fit: cover;
  border: 1px solid rgba(125, 211, 252, 0.2);
}

.list-advantages {
  list-style: none;
}

.list-advantages li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(125, 211, 252, 0.08);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.list-advantages li::before {
  content: '✦';
  color: #22d3ee;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 3px;
}