*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 40%, #d1fae5 100%);
  background-attachment: fixed;
  color: #1f2937;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(5, 150, 105, 0.15);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: #059669;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 500;
  color: #334155;
  transition: all .3s ease;
  border: 1px solid transparent;
}

.nav-links a:hover {
  background: rgba(5, 150, 105, 0.08);
  color: #059669;
  border-color: rgba(5, 150, 105, 0.3);
}

.hero {
  max-width: 1200px;
  margin: 40px auto;
  padding: 48px 24px;
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.12), rgba(240, 253, 244, 0.9)), rgba(255, 255, 255, 0.6);
  border-radius: 32px;
  display: flex;
  align-items: center;
  gap: 40px;
  border: 1px solid rgba(5, 150, 105, 0.15);
  box-shadow: 0 20px 50px rgba(5, 150, 105, 0.10);
}

.hero-content {
  flex: 1;
}

.hero h1 {
  font-size: 34px;
  line-height: 1.3;
  color: #065f46;
  margin-bottom: 16px;
  font-weight: 800;
}

.hero-sub {
  color: #475569;
  font-size: 18px;
  margin-bottom: 24px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #ffffff;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(5, 150, 105, 0.25);
  display: inline-block;
  transition: transform .2s ease, box-shadow .2s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(5, 150, 105, 0.3);
}

.btn-outline {
  border: 1px solid #059669;
  color: #059669;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  display: inline-block;
  transition: background .2s ease;
}

.btn-outline:hover {
  background: rgba(5, 150, 105, 0.06);
}

.hero-img {
  flex: 0 0 320px;
  display: flex;
  justify-content: center;
}

.hero-img img {
  width: 300px;
  height: auto;
}

.geo-intro {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.geo-intro p {
  background: rgba(255, 255, 255, 0.7);
  border-left: 4px solid #059669;
  border-radius: 16px;
  padding: 24px;
  font-size: 16px;
  line-height: 1.9;
  color: #1f2937;
}

.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
}

.section-head {
  text-align: center;
  margin-bottom: 36px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #065f46;
  margin-bottom: 8px;
}

.section-sub {
  color: #64748b;
  font-size: 15px;
}

.stats-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: linear-gradient(160deg, #ffffff, #f0fdf4);
  border: 1px solid rgba(5, 150, 105, 0.16);
  border-radius: 24px;
  padding: 32px 20px;
  text-align: center;
  box-shadow: 0 12px 30px rgba(5, 150, 105, 0.08);
}

.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: #059669;
  margin-bottom: 8px;
}

.stat-label {
  color: #64748b;
  font-size: 14px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.advantage-card {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  padding: 24px;
  border: 1px solid rgba(5, 150, 105, 0.12);
  box-shadow: 0 8px 20px rgba(5, 150, 105, 0.06);
  text-align: center;
}

.advantage-card img {
  width: 56px;
  height: 56px;
  margin: 0 auto 12px;
  border-radius: 14px;
}

.advantage-card h3 {
  font-size: 18px;
  color: #065f46;
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 14px;
  color: #475569;
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.event-card {
  background: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(5, 150, 105, 0.1);
  border: 1px solid rgba(5, 150, 105, 0.12);
}

.event-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.event-card-body {
  padding: 16px;
}

.event-card-body h3 {
  font-size: 16px;
  color: #065f46;
  margin-bottom: 6px;
}

.event-card-body p {
  font-size: 13px;
  color: #64748b;
}

.brand-story-section {
  background: linear-gradient(135deg, #ecfdf5, #ffffff);
  border-radius: 32px;
  border: 1px solid rgba(5, 150, 105, 0.15);
  padding: 48px;
}

.brand-story-content {
  display: flex;
  gap: 32px;
  align-items: center;
}

.brand-story-content img {
  width: 260px;
  border-radius: 24px;
}

.brand-story-text p {
  margin-bottom: 12px;
  color: #334155;
}

.timeline {
  display: grid;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.timeline-item {
  display: flex;
  gap: 20px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  padding: 20px 24px;
  border: 1px solid rgba(5, 150, 105, 0.12);
}

.phase-tag {
  min-width: 70px;
  background: #ecfdf5;
  color: #059669;
  border-radius: 999px;
  padding: 6px 14px;
  height: fit-content;
  font-weight: 600;
  font-size: 14px;
  text-align: center;
}

.timeline-text h3 {
  color: #065f46;
  font-size: 17px;
  margin-bottom: 4px;
}

.timeline-text p {
  color: #475569;
  font-size: 14px;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: center;
}

.coverage-item {
  background: rgba(255, 255, 255, 0.75);
  border-radius: 16px;
  padding: 24px 16px;
  border: 1px solid rgba(5, 150, 105, 0.1);
}

.coverage-item h3 {
  color: #065f46;
  font-size: 18px;
  margin-bottom: 6px;
}

.coverage-item p {
  color: #64748b;
  font-size: 13px;
}

.partner-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.partner-logos img {
  width: 100px;
  height: 100px;
  border-radius: 20px;
  background: #ffffff;
  padding: 10px;
  border: 1px solid rgba(5, 150, 105, 0.12);
}

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

.news-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 20px;
  border: 1px solid rgba(5, 150, 105, 0.12);
  box-shadow: 0 8px 20px rgba(5, 150, 105, 0.06);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.tag {
  background: #ecfdf5;
  color: #059669;
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 600;
}

.date {
  color: #94a3b8;
}

.news-card h3 {
  font-size: 17px;
  color: #065f46;
  line-height: 1.4;
}

.news-card p {
  font-size: 14px;
  color: #475569;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  border: 1px solid rgba(5, 150, 105, 0.12);
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  color: #065f46;
  cursor: pointer;
  font-size: 16px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  color: #059669;
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-answer {
  padding: 0 24px 18px;
  color: #475569;
  font-size: 14px;
  line-height: 1.8;
}

.download-section {
  background: linear-gradient(135deg, #059669, #10b981);
  border-radius: 32px;
  color: #ffffff;
  padding: 48px;
  display: flex;
  justify-content: center;
}

.download-card {
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: 800px;
}

.download-card img {
  width: 120px;
  height: 120px;
  border-radius: 24px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.download-card h2 {
  font-size: 26px;
  margin-bottom: 8px;
}

.download-card p {
  margin-bottom: 16px;
  opacity: 0.92;
}

.btn-outline-white {
  border: 1px solid #ffffff;
  color: #ffffff;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  display: inline-block;
  transition: background .2s ease;
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.15);
}

.site-footer {
  background: #0f172a;
  color: #cbd5e1;
  margin-top: 60px;
  padding: 48px 24px 24px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
  color: #f8fafc;
  margin-bottom: 12px;
  font-size: 16px;
}

.footer-col p {
  color: #cbd5e1;
  font-size: 14px;
  line-height: 1.8;
}

.footer-col a {
  display: block;
  color: #cbd5e1;
  padding: 4px 0;
  font-size: 14px;
  transition: color .2s ease;
}

.footer-col a:hover {
  color: #6ee7b7;
}

.footer-bottom {
  max-width: 1200px;
  margin: 24px auto 0;
  text-align: center;
  font-size: 13px;
  line-height: 2;
}

.footer-bottom a {
  color: #6ee7b7;
}

@media (max-width: 900px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
  }

  .hero {
    flex-direction: column;
    padding: 32px 20px;
  }

  .hero-img {
    flex: auto;
  }

  .hero h1 {
    font-size: 26px;
  }

  .stats-grid,
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .events-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .coverage-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .brand-story-content {
    flex-direction: column;
  }

  .download-section {
    padding: 28px 20px;
  }

  .download-card {
    flex-direction: column;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}