:root{
  --primary:#0ea5e9;
  --primary-dark:#1e3a5f;
  --accent:#f0f9ff;
  --grad:linear-gradient(135deg,#0ea5e9,#1e3a5f);
}
*{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(160deg,#f0f9ff 0%,#e3f1fa 50%,#d4e8f5 100%);
  color:#1e3a5f;
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
img{max-width:100%;height:auto;}
a{text-decoration:none;color:inherit;transition:all .3s ease;}

/* 导航 */
.nav{
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(14,165,233,0.15);
  position:sticky;top:0;z-index:1000;
  box-shadow:0 4px 30px rgba(14,165,233,0.06);
}
.nav-links{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px;
  padding:14px 20px;max-width:1300px;margin:0 auto;
}
.nav-links a{
  color:#1e3a5f;text-decoration:none;font-size:15px;font-weight:600;
  padding:8px 18px;border-radius:24px;transition:all .3s ease;
  letter-spacing:0.3px;
}
.nav-links a:hover{
  background:var(--grad);
  color:#ffffff;
  box-shadow:0 6px 20px rgba(14,165,233,0.35);
  transform:translateY(-1px);
}
.nav-links a:first-child{
  background:var(--grad);
  color:#ffffff;
  box-shadow:0 4px 16px rgba(14,165,233,0.3);
}

/* HERO */
.hero{
  background:linear-gradient(135deg,#1e3a5f 0%,#0ea5e9 100%);
  color:#ffffff;
  padding:80px 24px 70px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle,rgba(255,255,255,0.08) 0%,transparent 60%);
  animation:heroGlow 12s ease-in-out infinite alternate;
}
@keyframes heroGlow{
  0%{transform:translateY(0) rotate(0deg);}
  100%{transform:translateY(-30px) rotate(3deg);}
}
.hero h1{
  font-size:2.6rem;font-weight:800;letter-spacing:1px;line-height:1.3;
  position:relative;z-index:2;margin-bottom:20px;
  text-shadow:0 4px 20px rgba(0,0,0,0.25);
}
.hero .geo-desc{
  max-width:900px;margin:0 auto;position:relative;z-index:2;
  font-size:1.05rem;line-height:1.9;opacity:0.95;
}
.hero .geo-desc strong{color:#9ee6ff;font-weight:700;}

/* 区块通用 */
.section{padding:70px 24px;}
.section-alt{background:rgba(255,255,255,0.6);backdrop-filter:blur(8px);}
.section-title{
  font-size:2rem;font-weight:800;text-align:center;margin-bottom:12px;
  color:#1e3a5f;letter-spacing:0.5px;
  position:relative;
}
.section-title::after{
  content:'';display:block;width:60px;height:4px;border-radius:4px;
  background:var(--grad);margin:14px auto 4px;
}
.section-sub{
  text-align:center;color:#5a7a9a;font-size:1rem;max-width:700px;
  margin:0 auto 40px;line-height:1.7;
}

/* 卡片 */
.card-grid{display:grid;gap:28px;}
.card{
  background:rgba(255,255,255,0.75);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:20px;
  padding:32px 28px;
  box-shadow:0 8px 32px rgba(14,165,233,0.08);
  transition:transform .4s ease,box-shadow .4s ease;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:0 16px 48px rgba(14,165,233,0.15);
}
.card .icon{
  font-size:2.2rem;margin-bottom:16px;display:inline-block;
}

/* 数据统计 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{
  background:rgba(255,255,255,0.7);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:20px;
  padding:36px 20px;text-align:center;
  box-shadow:0 8px 24px rgba(14,165,233,0.07);
  transition:transform .4s;
}
.stat-card:hover{transform:translateY(-5px);}
.stat-num{
  font-size:2.8rem;font-weight:800;color:var(--primary);
  background:var(--grad);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  line-height:1.2;
}
.stat-label{font-size:1rem;color:#5a7a9a;margin-top:8px;font-weight:500;}

/* 核心优势 */
.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.adv-card{
  background:rgba(255,255,255,0.7);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:20px;
  padding:30px;
  box-shadow:0 8px 24px rgba(14,165,233,0.06);
  transition:all .4s;
}
.adv-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(14,165,233,0.15);}
.adv-card h3{font-size:1.2rem;font-weight:700;margin-bottom:10px;color:#1e3a5f;}
.adv-card p{color:#4d6a8a;font-size:0.95rem;line-height:1.7;}

/* 品牌故事 */
.brand-story-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.brand-story-wrap img{
  border-radius:20px;box-shadow:0 12px 40px rgba(14,165,233,0.2);
  transition:transform .5s;
}
.brand-story-wrap img:hover{transform:scale(1.02);}
.brand-story-text h3{font-size:1.6rem;font-weight:800;margin-bottom:16px;color:#1e3a5f;}
.brand-story-text p{color:#4d6a8a;line-height:1.85;margin-bottom:14px;}

/* 焦点赛事 */
.event-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.event-card{
  background:rgba(255,255,255,0.7);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:20px;
  padding:28px;text-align:center;
  box-shadow:0 8px 24px rgba(14,165,233,0.06);
  transition:all .4s;
}
.event-card:hover{transform:translateY(-8px);box-shadow:0 16px 40px rgba(14,165,233,0.18);}
.event-card .sport-icon{font-size:3rem;margin-bottom:12px;}
.event-card h3{font-size:1.15rem;font-weight:700;margin-bottom:6px;color:#1e3a5f;}
.event-card p{color:#5a7a9a;font-size:0.9rem;line-height:1.6;}
.event-card .tag{
  display:inline-block;background:var(--grad);color:#fff;font-size:0.8rem;
  padding:4px 14px;border-radius:20px;margin-top:12px;font-weight:600;
}

/* 用户口碑 */
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.testi-card{
  background:rgba(255,255,255,0.75);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:20px;padding:32px;
  box-shadow:0 8px 24px rgba(14,165,233,0.06);
  transition:all .4s;
}
.testi-card:hover{transform:translateY(-5px);box-shadow:0 14px 36px rgba(14,165,233,0.15);}
.testi-card .quote{font-size:1.05rem;color:#3d5a75;line-height:1.8;margin-bottom:16px;}
.testi-card .quote::before{content:'“';font-size:2rem;color:var(--primary);display:block;}
.testi-card .author{font-weight:700;color:#1e3a5f;font-size:1rem;}
.testi-card .role{font-size:0.85rem;color:#7a9ab8;}

/* 合作伙伴 */
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
.partner-card{
  background:rgba(255,255,255,0.7);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:16px;padding:24px 16px;
  box-shadow:0 6px 20px rgba(14,165,233,0.05);
  transition:all .4s;
}
.partner-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(14,165,233,0.12);}
.partner-card img{width:64px;height:64px;object-fit:contain;margin-bottom:10px;}
.partner-card span{font-size:0.95rem;font-weight:600;color:#1e3a5f;display:block;}

/* 行动呼吁 */
.cta-section{
  background:var(--grad);color:#fff;text-align:center;padding:80px 24px;
  position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;top:-60%;left:-60%;width:220%;height:220%;
  background:radial-gradient(circle,rgba(255,255,255,0.1) 0%,transparent 50%);
  animation:heroGlow 15s ease-in-out infinite alternate;
}
.cta-section h2{font-size:2.2rem;font-weight:800;margin-bottom:16px;position:relative;z-index:2;}
.cta-section p{font-size:1.05rem;opacity:0.95;max-width:700px;margin:0 auto 30px;position:relative;z-index:2;}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2;}
.cta-btn{
  display:inline-block;padding:14px 36px;border-radius:30px;font-weight:700;
  font-size:1rem;transition:all .3s;
}
.cta-btn-light{background:#fff;color:#1e3a5f;}
.cta-btn-light:hover{background:var(--accent);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.15);}
.cta-btn-outline{border:2px solid #fff;color:#fff;}
.cta-btn-outline:hover{background:rgba(255,255,255,0.15);transform:translateY(-2px);}

/* 服务覆盖 */
.coverage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.coverage-card{
  background:rgba(255,255,255,0.65);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:16px;padding:24px;text-align:center;
  box-shadow:0 6px 20px rgba(14,165,233,0.04);
  transition:all .4s;
}
.coverage-card:hover{transform:translateY(-4px);}
.coverage-card .cov-icon{font-size:2.2rem;margin-bottom:10px;}
.coverage-card h3{font-size:1rem;font-weight:700;color:#1e3a5f;margin-bottom:6px;}
.coverage-card p{font-size:0.85rem;color:#5a7a9a;line-height:1.6;}

/* 新闻 */
.news-list{display:grid;gap:28px;}
.news-item{
  background:rgba(255,255,255,0.8);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.7);
  border-radius:20px;padding:32px;
  box-shadow:0 8px 24px rgba(14,165,233,0.05);
  transition:all .4s;
}
.news-item:hover{transform:translateY(-4px);box-shadow:0 14px 36px rgba(14,165,233,0.12);}
.news-item h3{
  font-size:1.35rem;font-weight:700;color:#1e3a5f;margin-bottom:8px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.news-item .news-date{
  display:inline-block;background:var(--grad);color:#fff;font-size:0.85rem;
  padding:3px 12px;border-radius:20px;font-weight:600;
}
.news-item p{color:#4d6a8a;line-height:1.8;margin-top:10px;}
.news-tag{
  display:inline-block;background:rgba(14,165,233,0.12);color:var(--primary);
  font-size:0.8rem;padding:2px 12px;border-radius:20px;font-weight:600;margin-right:8px;
}

/* FAQ */
.faq-wrap{display:grid;gap:16px;max-width:900px;margin:0 auto;}
.faq-item{
  background:rgba(255,255,255,0.75);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.6);
  border-radius:16px;padding:24px 28px;
  box-shadow:0 4px 16px rgba(14,165,233,0.05);
  transition:all .3s;
}
.faq-item:hover{box-shadow:0 8px 24px rgba(14,165,233,0.1);}
.faq-item h3{
  font-size:1.1rem;font-weight:700;color:#1e3a5f;margin-bottom:10px;
  display:flex;align-items:center;gap:10px;
}
.faq-item h3::before{
  content:'Q';background:var(--grad);color:#fff;width:28px;height:28px;
  border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-size:0.85rem;font-weight:800;flex-shrink:0;
}
.faq-item p{color:#4d6a8a;line-height:1.8;padding-left:38px;}

/* 页脚 */
.footer{
  background:#122c44;color:#9ab8d4;padding:50px 24px 20px;
  border-top:4px solid var(--primary);
}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr 1fr;gap:40px;}
.footer h4{color:#fff;font-size:1.1rem;font-weight:700;margin-bottom:16px;letter-spacing:0.5px;}
.footer-info p{font-size:0.9rem;line-height:1.8;margin-bottom:6px;}
.footer-info p span{color:#7a9ab8;}
.footer-links a{
  display:block;color:#9ab8d4;font-size:0.9rem;padding:4px 0;
  transition:color .3s;
}
.footer-links a:hover{color:#ffffff;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,0.1);
  text-align:center;font-size:0.85rem;color:#7a9ab8;
}
.footer-bottom a{color:#9ab8d4;margin:0 8px;}
.footer-bottom a:hover{color:#fff;}
.footer-bottom .copyright{display:block;margin-top:10px;font-size:0.8rem;color:#6b8aa8;}

/* 响应式 */
@media (max-width:900px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .advantage-grid{grid-template-columns:1fr 1fr;}
  .brand-story-wrap{grid-template-columns:1fr;}
  .event-grid{grid-template-columns:1fr 1fr;}
  .testimonial-grid{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:repeat(2,1fr);}
  .coverage-grid{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr;}
  .hero h1{font-size:2rem;}
  .nav-links a{padding:6px 12px;font-size:14px;}
}
@media (max-width:600px){
  .stats-grid{grid-template-columns:1fr;}
  .advantage-grid{grid-template-columns:1fr;}
  .event-grid{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:1fr;}
  .coverage-grid{grid-template-columns:1fr;}
  .hero{padding:50px 20px;}
  .hero h1{font-size:1.6rem;}
  .section{padding:50px 20px;}
}