* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  background: linear-gradient(150deg, #0f172a 0%, #1e293b 45%, #334155 100%);
  color: #cbd5e1;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color 0.25s ease;
}
a:hover {
  color: #f8fafc;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Nav */
.site-header {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(30, 41, 59, 0.92));
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: 1280px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 10px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #f1f5f9;
}
.brand-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.nav-links a {
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 15px;
  border: 1px solid transparent;
  background: transparent;
}
.nav-links a:hover {
  background: rgba(148, 163, 184, 0.12);
  border-color: rgba(148, 163, 184, 0.2);
}

/* Hero */
.hero {
  padding: 60px 0 50px;
  background: radial-gradient(ellipse at top, rgba(51, 65, 85, 0.5), transparent 70%);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-text h2 {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.25;
  color: #f1f5f9;
  margin-bottom: 16px;
  background: linear-gradient(90deg, #f1f5f9, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-text p {
  color: #94a3b8;
  font-size: 1.05rem;
  margin-bottom: 24px;
}
.hero-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-badge {
  background: rgba(51, 65, 85, 0.5);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 24px;
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 500;
}
.hero-badge::before {
  content: "▮";
  color: #b91c1c;
  margin-right: 6px;
}
.hero-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(148, 163, 184, 0.12);
}
.hero-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

/* Sections */
.section {
  padding: 50px 0;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #b91c1c;
  border: 1px solid rgba(185, 28, 28, 0.35);
  border-radius: 4px;
  padding: 3px 10px;
  margin-bottom: 12px;
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 8px;
}
.section-subtitle {
  color: #94a3b8;
  margin-bottom: 32px;
  max-width: 640px;
}

/* Geo intro */
.geo-section {
  padding: 40px 0 20px;
}
.geo-section h1 {
  font-size: 2.3rem;
  font-weight: 700;
  color: #f1f5f9;
  line-height: 1.3;
  margin-bottom: 16px;
}
.geo-section p {
  color: #94a3b8;
  font-size: 1.05rem;
  max-width: 860px;
  margin-bottom: 16px;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: linear-gradient(145deg, #2d3a4a, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}
.stat-number {
  font-size: 2.8rem;
  font-weight: 700;
  color: #f1f5f9;
  line-height: 1.1;
  background: linear-gradient(135deg, #e2e8f0, #64748b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-label {
  margin-top: 8px;
  font-size: 14px;
  color: #94a3b8;
  letter-spacing: 0.5px;
}

/* Advantages */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.adv-card {
  background: linear-gradient(145deg, #2d3a4a, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 12px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}
.adv-card:hover {
  transform: translateY(-4px);
}
.adv-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, #991b1b, #7f1d1d);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(153, 27, 27, 0.3);
}
.adv-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 8px;
}
.adv-card p {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.6;
}

/* Story */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.story-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.story-content p {
  color: #94a3b8;
  margin-bottom: 16px;
}

/* Events */
.events-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.event-card {
  background: linear-gradient(145deg, #2d3a4a, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.event-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.event-card img {
  height: 160px;
  width: 100%;
  object-fit: cover;
}
.event-body {
  padding: 18px;
}
.event-league {
  font-size: 12px;
  color: #b91c1c;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.event-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 6px;
}
.event-meta {
  font-size: 13px;
  color: #94a3b8;
}

/* Deep content */
.deep-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.deep-image {
  border-radius: 12px;
  overflow: hidden;
}

/* Testimonials */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testi-card {
  background: linear-gradient(145deg, #2d3a4a, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 12px;
  padding: 24px;
}
.testi-card p {
  color: #cbd5e1;
  font-size: 15px;
  line-height: 1.65;
  margin-bottom: 16px;
}
.testi-user {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testi-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #64748b, #334155);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.testi-name {
  font-weight: 600;
  color: #f1f5f9;
  font-size: 14px;
}
.testi-role {
  font-size: 12px;
  color: #94a3b8;
}

/* App download */
.app-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.app-image {
  border-radius: 12px;
  overflow: hidden;
}
.app-buttons {
  display: flex;
  gap: 14px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.app-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #334155, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.3);
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s;
}
.app-btn:hover {
  border-color: #b91c1c;
  background: linear-gradient(135deg, #3e4c5e, #283548);
}

/* News list */
.news-section {
  background: rgba(15, 23, 42, 0.5);
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.news-item {
  display: flex;
  gap: 20px;
  background: linear-gradient(145deg, #2d3a4a, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 12px;
  padding: 18px;
  transition: border-color 0.3s;
}
.news-item:hover {
  border-color: rgba(185, 28, 28, 0.4);
}
.news-item img {
  width: 160px;
  height: 110px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.news-content {
  flex: 1;
}
.news-tag {
  display: inline-block;
  font-size: 12px;
  background: rgba(185, 28, 28, 0.2);
  color: #fca5a5;
  border-radius: 4px;
  padding: 2px 8px;
  margin-bottom: 4px;
}
.news-content h3 {
  font-size: 1.2rem;
  color: #f1f5f9;
  margin-bottom: 4px;
  line-height: 1.3;
}
.news-date {
  font-size: 13px;
  color: #b91c1c;
  font-weight: 600;
}
.news-summary {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.6;
}

/* FAQ */
.faq-list {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
details.faq-item {
  background: linear-gradient(145deg, #2d3a4a, #1e293b);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 10px;
  overflow: hidden;
}
details.faq-item summary {
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 600;
  color: #f1f5f9;
  font-size: 1rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}
details.faq-item summary::-webkit-details-marker {
  display: none;
}
details.faq-item summary::after {
  content: "+";
  font-size: 22px;
  color: #b91c1c;
  transition: transform 0.3s;
}
details[open] FAQ-item summary::after {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 22px 20px;
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
}

/* CTA */
.cta-section {
  text-align: center;
  padding: 60px 20px;
  background: radial-gradient(ellipse, rgba(153, 27, 27, 0.15), transparent 70%);
}
.cta-section h2 {
  font-size: 2rem;
  color: #f1f5f9;
  margin-bottom: 12px;
}
.cta-section p {
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 30px;
}
.cta-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-btn-primary {
  background: linear-gradient(135deg, #b91c1c, #7f1d1d);
  color: #f8fafc;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid rgba(248, 250, 252, 0.2);
  transition: all 0.3s;
}
.cta-btn-primary:hover {
  background: linear-gradient(135deg, #d11f1f, #8a1d1d);
  box-shadow: 0 8px 24px rgba(185, 28, 28, 0.4);
}
.cta-btn-secondary {
  border: 1px solid rgba(148, 163, 184, 0.4);
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s;
}

/* Footer */
.site-footer {
  background: #0f172a;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding: 40px 20px 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-col h4 {
  font-size: 1rem;
  color: #f1f5f9;
  margin-bottom: 14px;
}
.footer-col p,
.footer-col a {
  display: block;
  font-size: 14px;
  color: #94a3b8;
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  margin-top: 30px;
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-inner,
  .story-grid,
  .deep-grid,
  .app-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid,
  .adv-grid,
  .testi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .events-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .stats-grid,
  .adv-grid,
  .testi-grid,
  .events-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .news-item {
    flex-direction: column;
  }
  .news-item img {
    width: 100%;
    height: 180px;
  }
}