:root {
  --silver: #94a3b8;
  --deep-blue: #0f172a;
  --bright-silver: #e2e8f0;
  --sky-blue: #38bdf8;
  --card-bg: linear-gradient(145deg, rgba(30, 41, 59, 0.92), rgba(15, 23, 42, 0.96));
  --border-glow: rgba(56, 189, 248, 0.25);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  background: #0b1120 radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 80% 70%, rgba(148, 163, 184, 0.06) 0%, transparent 40%);
  color: #e2e8f0;
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; border-radius: 12px; }
a { color: #38bdf8; text-decoration: none; transition: opacity .3s; }
a:hover { opacity: .85; }

/* 顶部导航 */
.site-header {
  position: sticky; top: 0; z-index: 999;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  padding: 14px 24px;
}
.nav-links {
  display: flex; align-items: center; gap: 22px;
  max-width: 1300px; margin: 0 auto; flex-wrap: wrap;
}
.nav-links a {
  color: #e2e8f0; font-size: 15px; font-weight: 600;
  padding: 6px 12px; border-radius: 8px;
  background: linear-gradient(145deg, rgba(148,163,184,0.1), rgba(15,23,42,0.2));
  border: 1px solid rgba(148,163,184,0.2);
  transition: all .3s;
}
.nav-links a:hover { background: rgba(56,189,248,0.15); border-color: var(--border-glow); }

/* 通用容器 */
.container { max-width: 1300px; margin: 0 auto; padding: 0 24px; }
section { padding: 48px 0; position: relative; }
.section-title {
  font-size: 28px; font-weight: 700; text-align: center;
  margin-bottom: 12px; color: var(--bright-silver);
  text-transform: uppercase; letter-spacing: 2px;
}
.section-subtitle {
  text-align: center; color: var(--silver); font-size: 15px;
  margin-bottom: 32px;
}

/* Hero */
.hero {
  padding: 72px 0 48px;
  background: linear-gradient(180deg, #0f172a 0%, rgba(30,41,59,0.9) 100%);
  text-align: center;
}
.hero h1 {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 800;
  background: linear-gradient(90deg, #e2e8f0, #38bdf8, #94a3b8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 20px; line-height: 1.3;
}
.geo-intro {
  max-width: 850px; margin: 0 auto; padding: 0 20px;
  color: #cbd5e1; font-size: 16px; text-align: left;
  background: rgba(15,23,42,0.5);
  border-left: 3px solid #38bdf8;
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
}
.hero-img { margin: 28px auto 0; max-width: 420px; opacity: .9; }

/* 卡片通用 */
.card {
  background: var(--card-bg);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
}
.card::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 3px);
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,0.3); }

/* 数据统计 */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px; max-width: 1100px; margin: 0 auto;
}
.stat-card { text-align: center; padding: 28px 16px; }
.stat-number {
  font-size: 42px; font-weight: 800;
  background: linear-gradient(135deg, #38bdf8, #e2e8f0);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { color: var(--silver); font-size: 14px; margin-top: 4px; }

/* 核心优势 */
.advantages-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px; max-width: 1100px; margin: 0 auto;
}
.advantage-card { text-align: center; padding: 26px 18px; }
.advantage-icon { font-size: 40px; margin-bottom: 12px; }
.advantage-card h3 { font-size: 18px; margin-bottom: 6px; }
.advantage-card p { font-size: 14px; color: #94a3b8; }

/* 焦点赛事 */
.events-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px; max-width: 1200px; margin: 0 auto;
}
.event-card {
  padding: 20px; text-align: center;
}
.event-league { font-size: 12px; color: #38bdf8; text-transform: uppercase; letter-spacing: 1px; }
.event-teams { font-size: 18px; font-weight: 700; margin: 10px 0; display: flex; justify-content: space-around; align-items: center; gap: 8px; }
.event-teams span { flex: 1; }
.event-time { font-size: 13px; color: #94a3b8; }

/* 赛事直播 */
.live-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; max-width: 1200px; margin: 0 auto;
}
.live-card { padding: 20px; }
.live-badge {
  display: inline-block; background: #ef4444; color: #fff;
  font-size: 11px; font-weight: 700; padding: 2px 10px;
  border-radius: 20px; margin-bottom: 10px;
}
.live-score { font-size: 30px; font-weight: 800; margin: 10px 0; display: flex; justify-content: center; gap: 20px; }
.live-min { font-size: 13px; color: #94a3b8; }

/* 品牌故事 */
.story-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 36px;
  align-items: center; max-width: 1100px; margin: 0 auto;
}
@media (max-width: 768px) { .story-wrap { grid-template-columns: 1fr; } }
.story-text h3 { font-size: 24px; margin-bottom: 14px; color: #e2e8f0; }
.story-text p { color: #94a3b8; margin-bottom: 12px; }

/* 服务覆盖 */
.coverage-list {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 12px; max-width: 1200px; margin: 0 auto;
}
.coverage-item {
  background: rgba(148,163,184,0.08);
  border: 1px solid rgba(148,163,184,0.2);
  border-radius: 30px; padding: 8px 20px;
  font-size: 14px; font-weight: 600; color: #cbd5e1;
}

/* 新闻 */
.news-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px; max-width: 1200px; margin: 0 auto;
}
.news-card { padding: 22px; }
.news-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.news-tag {
  background: rgba(56,189,248,0.15); color: #38bdf8;
  font-size: 12px; font-weight: 700; padding: 2px 10px; border-radius: 20px;
}
.news-date { font-size: 13px; color: #94a3b8; }
.news-card h3 { font-size: 17px; line-height: 1.4; margin-bottom: 10px; }
.news-card p { font-size: 14px; color: #94a3b8; margin-bottom: 12px; }
.news-card .read-more { font-size: 14px; font-weight: 600; }

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { padding: 22px 24px; }
.faq-item h3 { font-size: 17px; color: #38bdf8; margin-bottom: 8px; }
.faq-item p { font-size: 15px; color: #cbd5e1; }

/* 下载中心 */
.download-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 36px;
  align-items: center; max-width: 1000px; margin: 0 auto;
  text-align: center;
}
@media (max-width: 768px) { .download-wrap { grid-template-columns: 1fr; } }
.download-btn {
  display: inline-block; margin: 10px 6px;
  padding: 12px 28px; border-radius: 30px;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: #0f172a; font-weight: 700; font-size: 15px;
  border: none; cursor: pointer;
}

/* 页脚 */
.site-footer {
  border-top: 1px solid rgba(148,163,184,0.15);
  padding: 32px 24px 20px;
  background: #0b1120;
  text-align: center;
}
.footer-content { max-width: 1200px; margin: 0 auto; font-size: 14px; color: #94a3b8; line-height: 2; }
.footer-links { margin-top: 8px; }
.footer-links a { color: #38bdf8; }
.copyright { margin-top: 12px; font-size: 13px; color: #64748b; }

/* 响应式 */
@media (max-width: 768px) {
  .nav-links { gap: 10px; justify-content: center; }
  .nav-links a { font-size: 13px; padding: 4px 8px; }
  section { padding: 32px 0; }
  .section-title { font-size: 22px; }
}