:root {
  --bg-color: #f1f5f9;
  --card-bg: #ffffff;
  --text-color: #0f172a;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --primary-color: #16a34a;
  --primary-hover: #15803d;
  --accent-red: #ef4444;
  --accent-yellow: #eab308;
  --accent-blue: #2563eb;
  --shadow: 0 2px 10px rgba(0,0,0,0.06);
  --shadow-hover: 0 6px 20px rgba(0,0,0,0.1);
}

[data-theme="dark"] {
  --bg-color: #0b1220;
  --card-bg: #111827;
  --text-color: #e5e7eb;
  --text-secondary: #94a3b8;
  --border-color: #1f2937;
  --primary-color: #22c55e;
  --primary-hover: #16a34a;
  --shadow: 0 2px 10px rgba(0,0,0,0.4);
  --shadow-hover: 0 6px 22px rgba(0,0,0,0.5);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

.container { max-width: 1240px; margin: 0 auto; padding: 0 16px; }

.header {
  background: var(--card-bg);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-color);
}

.header-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.search-box { display: flex; border: 1px solid var(--border-color); border-radius: 10px; overflow: hidden; background: var(--bg-color); }
.search-box input {
  border: none;
  outline: none;
  padding: 10px 14px;
  font-size: 14px;
  background: transparent;
  color: var(--text-color);
  width: 240px;
}
.search-box button {
  border: none;
  background: var(--primary-color);
  color: #fff;
  padding: 0 18px;
  cursor: pointer;
  transition: background 0.2s;
}
.search-box button:hover { background: var(--primary-hover); }

.theme-btn {
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  width: 42px;
  height: 42px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 18px;
  color: var(--text-color);
  transition: all 0.2s;
}
.theme-btn:hover { transform: scale(1.05); }

.nav { border-top: 1px solid var(--border-color); background: var(--card-bg); }
.nav-inner { display: flex; gap: 8px; padding: 12px 16px; overflow-x: auto; scrollbar-width: none; }
.nav-inner::-webkit-scrollbar { display: none; }
.cat-btn {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  color: var(--text-color);
  border-radius: 20px;
  cursor: pointer;
  white-space: nowrap;
  font-size: 14px;
  transition: all 0.2s;
}
.cat-btn:hover { border-color: var(--primary-color); color: var(--primary-color); }
.cat-btn.active { background: var(--primary-color); color: #fff; border-color: var(--primary-color); font-weight: 600; }

.main { padding: 24px 16px; min-height: calc(100vh - 220px); }

.stats-bar {
  display: flex;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--card-bg);
  border-radius: 12px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}

.news-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--shadow);
  transition: all 0.25s;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

.news-cat {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  color: #fff;
  border-radius: 10px;
  margin-bottom: 10px;
  align-self: flex-start;
  font-weight: 500;
}
.news-cat.足球 { background: var(--accent-green, #16a34a); }
.news-cat.篮球 { background: var(--accent-orange, #f97316); }
.news-cat.网球 { background: var(--accent-yellow); color: #333; }
.news-cat.电竞 { background: var(--accent-purple, #8b5cf6); }
.news-cat.综合 { background: var(--accent-blue); }
.news-cat.赛事 { background: var(--accent-red); }

.news-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-desc {
  font-size: 14px;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
  font-size: 13px;
  color: var(--text-secondary);
}

.rank-wrap { padding-bottom: 10px; }

.rank-title {
  font-size: 18px;
  font-weight: 700;
  margin: 18px 0 10px;
  color: var(--text-color);
  padding-left: 6px;
  border-left: 4px solid var(--primary-color);
}
.rank-title:first-child { margin-top: 4px; }

.table-wrap {
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  overflow-x: auto;
  margin-bottom: 20px;
}

.rank-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
  font-size: 14px;
}
.rank-table thead tr {
  background: var(--bg-color);
}
.rank-table th {
  padding: 12px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}
.rank-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-color);
  white-space: nowrap;
}
.rank-table tbody tr:last-child td { border-bottom: none; }
.rank-table tbody tr:hover { background: var(--bg-color); }

.rank-pos {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 13px;
  background: var(--bg-color);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.rank-pos.p1 { background: linear-gradient(135deg, #fde047, #eab308); color: #78350f; border-color: transparent; }
.rank-pos.p2 { background: linear-gradient(135deg, #e5e7eb, #9ca3af); color: #111827; border-color: transparent; }
.rank-pos.p3 { background: linear-gradient(135deg, #fed7aa, #c2410c); color: #fff; border-color: transparent; }
.rank-pos.champion-zone { background: rgba(34, 197, 94, 0.15); color: var(--primary-color); border-color: rgba(34, 197, 94, 0.4); }
.rank-pos.relegation { background: rgba(239, 68, 68, 0.12); color: var(--accent-red); border-color: rgba(239, 68, 68, 0.35); }

.team-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}
.team-logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-blue));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}

.points { font-weight: 700; color: var(--primary-color); font-size: 15px; }
.form { display: inline-flex; gap: 3px; }
.form span {
  display: inline-block;
  width: 16px; height: 16px;
  line-height: 16px;
  text-align: center;
  font-size: 10px;
  border-radius: 4px;
  color: #fff;
  font-weight: 700;
}
.form .W { background: #16a34a; }
.form .D { background: #64748b; }
.form .L { background: #ef4444; }

.empty-state, .loading-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-secondary);
  font-size: 16px;
}
.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }


@media (max-width: 720px) {
  .search-box input { width: 140px; }
  .card-grid { grid-template-columns: 1fr; }
  .stats-bar { flex-direction: column; gap: 6px; text-align: center; }
  .logo { font-size: 18px; }
  .rank-table { min-width: 520px; font-size: 13px; }
  .rank-table th, .rank-table td { padding: 10px 8px; }
}