* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background: #080c14;
  color: #b8c8d8;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: #4db8ff; text-decoration: none; transition: color .2s; }
a:hover { color: #fff; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.header {
  background: linear-gradient(180deg, #0c1828 0%, #060e18 100%);
  border-bottom: 2px solid #1a5a9a;
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 15px; }
.logo { font-size: 26px; font-weight: bold; color: #5bc0ff; text-shadow: 0 0 10px rgba(91,192,255,.4); }
.logo span { color: #f0c040; }
.nav { display: flex; gap: 5px; flex-wrap: wrap; }
.nav a {
  padding: 8px 18px;
  background: rgba(26,90,154,.2);
  border: 1px solid #1a3a5a;
  border-radius: 4px;
  color: #b8c8d8;
  font-size: 15px;
}
.nav a:hover, .nav a.active {
  background: #1a5a9a;
  color: #f0c040;
  border-color: #f0c040;
}

.banner {
  background: linear-gradient(135deg, #0a1420 0%, #102040 50%, #0a1420 100%);
  padding: 50px 0;
  text-align: center;
  border-bottom: 1px solid #1a3050;
}
.banner h1 { font-size: 36px; color: #5bc0ff; margin-bottom: 15px; text-shadow: 0 2px 8px rgba(0,0,0,.8); }
.banner p { font-size: 16px; color: #7a9ab8; max-width: 700px; margin: 0 auto; }

.section { padding: 40px 0; }
.section-title {
  font-size: 22px;
  color: #5bc0ff;
  border-left: 4px solid #1a5a9a;
  padding-left: 15px;
  margin-bottom: 25px;
}

.server-table { width: 100%; border-collapse: collapse; background: #0c1018; border: 1px solid #1a2a3a; }
.server-table th {
  background: linear-gradient(180deg, #102040, #081018);
  color: #5bc0ff;
  padding: 12px 15px;
  text-align: left;
  font-weight: normal;
  border-bottom: 2px solid #1a5a9a;
}
.server-table td { padding: 12px 15px; border-bottom: 1px solid #1a2030; }
.server-table tr:hover td { background: rgba(26,90,154,.12); }
.tag-new { background: #1a5a9a; color: #fff; padding: 2px 8px; border-radius: 3px; font-size: 12px; }
.tag-hot { background: #c08020; color: #000; padding: 2px 8px; border-radius: 3px; font-size: 12px; }
.btn-download {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(180deg, #1a5a9a, #0a3060);
  border: 1px solid #5bc0ff;
  border-radius: 4px;
  color: #5bc0ff;
  font-size: 13px;
}
.btn-download:hover { background: #2060a0; color: #fff; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.card {
  background: linear-gradient(180deg, #0c1420, #060c14);
  border: 1px solid #1a2a3a;
  border-radius: 6px;
  padding: 25px;
  transition: border-color .2s;
}
.card:hover { border-color: #1a5a9a; }
.card h3 { color: #5bc0ff; margin-bottom: 10px; font-size: 18px; }
.card p { color: #7a9ab8; font-size: 14px; }

.help-list { list-style: none; }
.help-list li {
  background: #0c1018;
  border: 1px solid #1a2a3a;
  margin-bottom: 12px;
  padding: 18px 20px;
  border-radius: 4px;
}
.help-list h3 { color: #5bc0ff; font-size: 16px; margin-bottom: 8px; }
.help-list p { color: #7a9ab8; font-size: 14px; }

.dl-box {
  background: linear-gradient(180deg, #0c1420, #060c14);
  border: 2px solid #1a5a9a;
  border-radius: 8px;
  padding: 40px;
  text-align: center;
  margin-bottom: 30px;
}
.dl-box h2 { color: #5bc0ff; margin-bottom: 15px; }
.dl-box .btn-big {
  display: inline-block;
  padding: 15px 50px;
  background: linear-gradient(180deg, #1a5a9a, #0a3060);
  border: 2px solid #5bc0ff;
  border-radius: 6px;
  color: #5bc0ff;
  font-size: 18px;
  margin-top: 15px;
}
.dl-box .btn-big:hover { background: #2060a0; color: #fff; }

.footer {
  background: #060a10;
  border-top: 1px solid #1a2030;
  padding: 30px 0;
  text-align: center;
  color: #556;
  font-size: 13px;
  margin-top: 40px;
}
.footer a { color: #778; }

@media (max-width: 768px) {
  .banner h1 { font-size: 26px; }
  .server-table { font-size: 13px; }
  .server-table th, .server-table td { padding: 8px 10px; }
}