* {
  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, #0f172a 0%, #1e293b 55%, #111827 100%);
  color: #e2e8f0;
  line-height: 1.75;
  overflow-x: hidden;
}

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

/* ===== 导航栏 ===== */
.navbar {
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid #b91c1c;
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

.nav-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  padding: 8px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  letter-spacing: 0.3px;
}

.nav-links a:hover {
  color: #f1f5f9;
  background: rgba(185, 28, 28, 0.25);
  border-color: #b91c1c;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 90px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, rgba(15,23,42,0.85) 0%, rgba(30,41,59,0.95) 100%), url('/img/sports.webp') center/cover no-repeat;
  border-bottom: 3px solid #b91c1c;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(15,23,42,0.7) 100%);
  pointer-events: none;
}

.hero h1 {
  font-size: 44px;
  font-weight: 800;
  color: #f8fafc;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5), 0 0 60px rgba(185,28,28,0.2);
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
  margin-bottom: 10px;
}

.hero .sub-title {
  color: #94a3b8;
  font-size: 18px;
  font-weight: 400;
  position: relative;
  z-index: 2;
  margin-top: 8px;
}

/* ===== GEO ===== */
.geo-intro {
  padding: 40px 0 50px;
  background: linear-gradient(135deg, #131c2b, #1e293b);
  border-bottom: 1px solid #334155;
}

.geo-intro .lead {
  font-size: 17px;
  color: #cbd5e1;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
  line-height: 1.9;
  background: rgba(15,23,42,0.5);
  padding: 24px 28px;
  border-left: 4px solid #b91c1c;
  border-radius: 0 10px 10px 0;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}

/* ===== 区块通用 ===== */
.section-block {
  padding: 60px 0;
  border-bottom: 1px solid #1e2d44;
}

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

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: 0.5px;
}

.section-header .tag {
  display: inline-block;
  background: #b91c1c;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ===== 卡片 ===== */
.card {
  background: linear-gradient(145deg, #2d3a4d, #1a2332);
  border: 1px solid #3d4a5f;
  border-top: 3px solid #b91c1c;
  border-radius: 10px;
  padding: 24px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), 0 10px 30px rgba(0,0,0,0.35);
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1), 0 16px 40px rgba(0,0,0,0.5);
}

/* ===== 焦点赛事 ===== */
.featured-events {
  background: linear-gradient(160deg, #0d1522, #162135);
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.event-card {
  position: relative;
  overflow: hidden;
}

.event-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 6px 6px 0 0;
  border-bottom: 2px solid #b91c1c;
}

.event-card h3 {
  font-size: 20px;
  color: #f8fafc;
  margin: 16px 0 8px;
}

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

.event-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(185,28,28,0.9);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
}

/* ===== 数据统计 ===== */
.data-stats {
  background: linear-gradient(135deg, #1e293b, #0f172a);
}

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

.stat-card {
  text-align: center;
  padding: 32px 18px;
}

.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: #b91c1c;
  display: block;
  line-height: 1.2;
}

.stat-label {
  color: #94a3b8;
  font-size: 15px;
  margin-top: 8px;
  display: block;
}

/* ===== 核心优势 ===== */
.core-advantages {
  background: linear-gradient(160deg, #121b2a, #1d2939);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.advantage-item {
  padding: 28px 22px;
  text-align: center;
}

.advantage-icon {
  font-size: 44px;
  margin-bottom: 16px;
  display: block;
}

.advantage-item h3 {
  color: #f8fafc;
  font-size: 20px;
  margin-bottom: 12px;
}

.advantage-item p {
  color: #94a3b8;
  font-size: 14px;
}

/* ===== 品牌故事 ===== */
.brand-story {
  background: linear-gradient(135deg, #0f172a, #1c2940);
}

.brand-flex {
  display: flex;
  align-items: center;
  gap: 48px;
}

.brand-flex img {
  width: 42%;
  border-radius: 10px;
  border: 2px solid #3d4a5f;
  box-shadow: 0 12px 35px rgba(0,0,0,0.4);
}

.brand-content h2 {
  font-size: 30px;
  color: #f8fafc;
  margin-bottom: 20px;
}

.brand-content p {
  color: #aab8c8;
  margin-bottom: 14px;
  font-size: 15px;
}

/* ===== 赛事直播 ===== */
.live-stream {
  background: linear-gradient(160deg, #131e2d, #0f172a);
}

.live-flex {
  display: flex;
  gap: 32px;
  align-items: stretch;
}

.live-main {
  flex: 2;
  padding: 30px;
}

.live-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.live-main img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 16px;
  border: 1px solid #3d4a5f;
}

.live-main h3 {
  font-size: 22px;
  color: #fff;
  margin-bottom: 8px;
}

.live-main p {
  color: #94a3b8;
  font-size: 14px;
}

.live-side .card {
  padding: 18px;
  border-top-width: 2px;
}

.live-side .card h4 {
  color: #e2e8f0;
  font-size: 15px;
  margin-bottom: 6px;
}

.live-side .card span {
  color: #b91c1c;
  font-size: 13px;
  font-weight: 700;
}

/* ===== 热门排行 ===== */
.rankings {
  background: linear-gradient(135deg, #111c2b, #1a2738);
}

.rank-table {
  width: 100%;
  border-collapse: collapse;
  background: linear-gradient(145deg, #1c2838, #141f2e);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #2c3d52;
}

.rank-table th {
  background: #b91c1c;
  color: #fff;
  padding: 14px 18px;
  font-size: 14px;
  text-align: left;
  font-weight: 600;
}

.rank-table td {
  padding: 14px 18px;
  color: #cbd5e1;
  border-bottom: 1px solid #1e2d44;
  font-size: 14px;
}

.rank-table tr:last-child td {
  border-bottom: none;
}

.rank-table .rank-1 {
  color: #fbbf24;
  font-weight: 700;
}

/* ===== 游戏推荐 ===== */
.game-recommend {
  background: linear-gradient(160deg, #0e1726, #152234);
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.game-card {
  position: relative;
  padding: 0;
  overflow: hidden;
}

.game-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

.game-card .game-info {
  padding: 22px;
}

.game-card h3 {
  color: #f8fafc;
  font-size: 18px;
  margin-bottom: 8px;
}

.game-card p {
  color: #94a3b8;
  font-size: 13px;
  line-height: 1.6;
}

.game-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  border: 1px solid #b91c1c;
}

/* ===== 用户口碑 ===== */
.testimonials {
  background: linear-gradient(135deg, #121c2b, #1d2a3c);
}

.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.testi-item {
  padding: 28px;
  position: relative;
}

.testi-item img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid #b91c1c;
  object-fit: cover;
  margin-bottom: 14px;
}

.testi-item blockquote {
  color: #aab8c8;
  font-size: 14px;
  font-style: italic;
  margin-bottom: 14px;
  line-height: 1.7;
}

.testi-item cite {
  color: #f8fafc;
  font-size: 14px;
  font-weight: 600;
  display: block;
  text-align: right;
}

/* ===== 新闻 ===== */
.news-list {
  background: linear-gradient(160deg, #0f172a, #101d2e);
}

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

.news-card {
  display: flex;
  gap: 18px;
  padding: 22px;
  background: linear-gradient(145deg, #1c2938, #121c2a);
  border-left: 4px solid #b91c1c;
  border-radius: 8px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
  transition: background 0.3s;
}

.news-card:hover {
  background: linear-gradient(145deg, #223048, #172331);
}

.news-card img {
  width: 110px;
  height: 110px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
  border: 1px solid #2c3d52;
}

.news-content h3 {
  font-size: 17px;
  color: #f1f5f9;
  margin-bottom: 8px;
  line-height: 1.4;
}

.news-content h3 a {
  color: #f1f5f9;
  text-decoration: none;
}

.news-content h3 a:hover {
  color: #fca5a5;
}

.news-content p {
  color: #94a3b8;
  font-size: 13px;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq {
  background: linear-gradient(135deg, #131f2f, #0e1726);
}

.faq-grid {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  background: linear-gradient(145deg, #1e2b3b, #131e2d);
  border: 1px solid #2c3d52;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0,0,0,0.2);
}

.faq-item summary {
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 600;
  color: #e2e8f0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s;
}

.faq-item summary:hover {
  background: rgba(185,28,28,0.08);
}

.faq-item summary::after {
  content: '+';
  font-size: 24px;
  color: #b91c1c;
  margin-left: 12px;
  transition: transform 0.3s;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 24px 20px;
  color: #aab8c8;
  font-size: 14px;
  line-height: 1.8;
}

/* ===== 页脚 ===== */
.footer {
  background: #0a0f1a;
  border-top: 3px solid #b91c1c;
  padding: 50px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 30px;
}

.footer h4 {
  color: #e2e8f0;
  font-size: 18px;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer h4::after {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background: #b91c1c;
  margin-top: 8px;
}

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

.footer-bottom {
  border-top: 1px solid #1c2a3a;
  padding-top: 24px;
  text-align: center;
  color: #94a3b8;
  font-size: 13px;
}

.footer-bottom a {
  color: #b91c1c;
  text-decoration: none;
  margin: 0 6px;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .events-grid,
  .advantages-grid,
  .game-grid,
  .testi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .brand-flex img {
    width: 100%;
  }

  .live-flex {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 30px;
  }

  .nav-links a {
    font-size: 13px;
    padding: 6px 10px;
  }

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

  .news-card {
    flex-direction: column;
  }

  .news-card img {
    width: 100%;
    height: 160px;
  }

  .geo-intro .lead {
    padding: 18px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}