/* 汐洛界域 · 宣传主页 —— 淡色系 天蓝×淡粉渐变 */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --sky: #38bdf8;
  --sky-deep: #0ea5e9;
  --pink: #f9a8d4;
  --pink-deep: #ec4899;
  --ink: #334155;
  --ink-soft: #64748b;
  --card: rgba(255, 255, 255, 0.72);
  --line: rgba(148, 163, 184, 0.25);
}
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: linear-gradient(160deg, #dff2fd 0%, #f7fafc 42%, #fdeef6 100%);
  min-height: 100vh;
  overflow-x: hidden;
}
/* 背景光斑 */
.glow { position: fixed; border-radius: 50%; filter: blur(90px); opacity: .55; pointer-events: none; z-index: 0; }
.glow-blue { width: 480px; height: 480px; background: #bae6fd; top: -120px; left: -100px; }
.glow-pink { width: 520px; height: 520px; background: #fbcfe8; bottom: -160px; right: -120px; }
nav, header, section, footer { position: relative; z-index: 1; }

/* 导航 */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 5vw; position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.55); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-logo { font-weight: 800; font-size: 19px; background: linear-gradient(90deg, var(--sky-deep), var(--pink-deep)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 18px; align-items: center; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-size: 14px; }
.nav-links a:hover { color: var(--sky-deep); }
.nav-admin { padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; }

/* Hero */
.hero { text-align: center; padding: 96px 16px 72px; }
.hero-badge {
  display: inline-block; padding: 7px 18px; border-radius: 999px; font-size: 13.5px; font-weight: 600;
  background: rgba(255,255,255,.7); border: 1px solid var(--line); color: var(--sky-deep);
  box-shadow: 0 4px 18px rgba(56,189,248,.15);
}
.hero-title {
  margin-top: 26px; font-size: clamp(46px, 9vw, 92px); font-weight: 900; letter-spacing: 4px;
  background: linear-gradient(100deg, #0ea5e9 10%, #818cf8 45%, #ec4899 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 12px 40px rgba(236,72,153,.12);
}
.hero-sub { margin-top: 14px; font-size: clamp(17px, 2.6vw, 22px); color: var(--ink); font-weight: 600; letter-spacing: 2px; }
.hero-desc { margin-top: 14px; color: var(--ink-soft); font-size: 14.5px; line-height: 1.9; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* 按钮 */
.btn {
  display: inline-block; border: none; cursor: pointer; text-decoration: none;
  padding: 13px 30px; border-radius: 999px; font-size: 15px; font-weight: 700;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #fff; background: linear-gradient(95deg, var(--sky-deep), var(--pink-deep));
  box-shadow: 0 8px 24px rgba(14,165,233,.35);
}
.btn-primary:hover { box-shadow: 0 12px 30px rgba(236,72,153,.35); }
.btn-ghost { color: var(--sky-deep); background: rgba(255,255,255,.75); border: 1.5px solid rgba(14,165,233,.35); }
.btn-sm { padding: 9px 20px; font-size: 13.5px; }

/* 区块通用 */
.section { max-width: 1080px; margin: 0 auto; padding: 56px 16px 8px; }
.sec-title { text-align: center; font-size: 26px; font-weight: 800; letter-spacing: 3px; color: var(--ink); }
.sec-sub { text-align: center; color: var(--ink-soft); font-size: 13px; margin-top: 8px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  backdrop-filter: blur(12px); box-shadow: 0 8px 28px rgba(100,116,139,.10);
}

/* 实时状态 */
.status-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-top: 30px; }
.stat { padding: 20px 18px; }
.stat-label { color: var(--ink-soft); font-size: 12.5px; }
.stat-value { font-size: 30px; font-weight: 800; margin-top: 6px; color: var(--ink); }
.stat-max { font-size: 15px; font-weight: 600; color: var(--ink-soft); }
.stat-foot { color: var(--ink-soft); font-size: 12px; margin-top: 6px; display: flex; align-items: center; gap: 6px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: #cbd5e1; }
.dot.on { background: #34d399; box-shadow: 0 0 8px rgba(52,211,153,.8); }
.dot.off { background: #fb7185; box-shadow: 0 0 8px rgba(251,113,133,.8); }

/* 特色 */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-top: 30px; }
.feature { padding: 24px 20px; transition: transform .18s ease; }
.feature:hover { transform: translateY(-4px); }
.feature-icon { font-size: 30px; }
.feature h3 { margin-top: 10px; font-size: 16.5px; color: var(--ink); }
.feature p { margin-top: 8px; color: var(--ink-soft); font-size: 13.5px; line-height: 1.75; }

/* 加入 */
.join-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; margin-top: 30px; }
.join { padding: 26px 22px; text-align: center; }
.join-tag { display: inline-block; padding: 4px 14px; border-radius: 999px; font-size: 12.5px; font-weight: 700; }
.join-tag.java { background: rgba(186,230,253,.6); color: #0369a1; }
.join-tag.bedrock { background: rgba(251,207,232,.6); color: #be185d; }
.join-addr { margin-top: 14px; font-family: Consolas, monospace; font-size: 19px; font-weight: 700; color: var(--ink); word-break: break-all; }
.join-port { font-size: 13px; color: var(--ink-soft); font-weight: 600; }
.join-note { color: var(--ink-soft); font-size: 12.5px; line-height: 1.8; margin: 10px 0 14px; }
.qq-bar {
  margin-top: 14px; padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.qq-left { display: flex; align-items: center; gap: 10px; color: var(--ink); font-size: 14.5px; font-weight: 600; }
.qq-num { font-size: 18px; font-weight: 800; background: linear-gradient(90deg, var(--sky-deep), var(--pink-deep)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* 页脚 */
.foot { text-align: center; padding: 60px 16px 34px; color: var(--ink-soft); font-size: 13.5px; }
.foot-sub { margin-top: 8px; font-size: 12px; }
.foot a { color: var(--sky-deep); text-decoration: none; }

@media (max-width: 640px) {
  .nav-links a:not(.nav-admin) { display: none; }
  .hero { padding: 70px 14px 50px; }
}