:root {
  --bg: #0a0a0f;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #f5f5f7;
  --text-dim: #9b9ba7;
  --accent: #6e8bff;
  --accent-2: #c66bff;
  --accent-3: #42e8c8;
  --radius: 20px;
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 背景流光 */
.glow {
  position: fixed; border-radius: 50%; filter: blur(120px);
  opacity: 0.35; z-index: 0; pointer-events: none;
}
.glow-1 { top: -160px; left: -100px; width: 480px; height: 480px; background: var(--accent); }
.glow-2 { top: 200px; right: -160px; width: 520px; height: 520px; background: var(--accent-2); }
.glow-3 { bottom: -200px; left: 30%; width: 460px; height: 460px; background: var(--accent-3); }

.wrap { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* 导航 */
nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(10, 10, 15, 0.6);
  border-bottom: 1px solid var(--card-border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 700; font-size: 18px; letter-spacing: 0.5px; display: flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 0 14px var(--accent); }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 14px; transition: color 0.25s; }
.nav-links a:hover { color: var(--text); }

/* Hero */
header { padding: 120px 0 100px; text-align: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  border: 1px solid var(--card-border); background: var(--card);
  font-size: 13px; color: var(--text-dim); margin-bottom: 28px;
}
.badge .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); animation: pulse 2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(66,232,200,0.5); }
  70% { box-shadow: 0 0 0 10px rgba(42,232,200,0); }
  100% { box-shadow: 0 0 0 0 rgba(42,232,200,0); }
}
h1 {
  font-size: clamp(48px, 9vw, 104px); font-weight: 800; line-height: 1.02; letter-spacing: -2px;
  background: linear-gradient(180deg, #ffffff 0%, #b8b8c8 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nb {
  display: block; font-size: clamp(22px, 4.5vw, 44px); font-weight: 700; margin-top: 18px;
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  background-size: 200% auto; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shine 5s linear infinite;
}
@keyframes shine { to { background-position: 200% center; } }
.subtitle { color: var(--text-dim); font-size: clamp(15px, 2vw, 18px); max-width: 540px; margin: 28px auto 0; }
.cta { margin-top: 40px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 13px 28px; border-radius: 999px; font-size: 15px; font-weight: 600;
  text-decoration: none; transition: transform 0.2s, box-shadow 0.2s; cursor: pointer; border: none;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; box-shadow: 0 10px 30px rgba(110,139,255,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 38px rgba(110,139,255,0.5); }
.btn-ghost { background: var(--card); border: 1px solid var(--card-border); color: var(--text); }
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.25); }

/* 统计 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 90px 0; }
.stat { text-align: center; padding: 28px 12px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--card-border); }
.stat .num { font-size: clamp(30px, 5vw, 44px); font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent-3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .label { color: var(--text-dim); font-size: 13px; margin-top: 6px; }

/* 区块标题 */
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .kicker { color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin-top: 10px; letter-spacing: -0.5px; }

/* 特质卡片 */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  padding: 28px; border-radius: var(--radius); background: var(--card);
  border: 1px solid var(--card-border); transition: transform 0.3s, border-color 0.3s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.3s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(110,139,255,0.12), transparent 40%);
}
.card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.18); }
.card:hover::before { opacity: 1; }
.card .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; background: linear-gradient(135deg, rgba(110,139,255,0.2), rgba(198,107,255,0.2)); margin-bottom: 16px; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--text-dim); font-size: 14px; }

/* 首页成员网格 */
.members-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 20px; }
.member {
  display: block; padding: 32px 28px; border-radius: var(--radius); background: var(--card);
  border: 1px solid var(--card-border); text-decoration: none; color: var(--text);
  position: relative; overflow: hidden; transition: transform 0.3s, border-color 0.3s; cursor: pointer;
}
.member::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.3s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(110,139,255,0.14), transparent 40%);
}
.member:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.2); }
.member:hover::before { opacity: 1; }
.member .avatar { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; font-size: 24px; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent-2)); margin-bottom: 18px; color: #fff; }
.member h3 { font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.member .role { color: var(--accent-3); font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.member .tag { display: inline-block; padding: 5px 12px; border-radius: 999px; border: 1px solid var(--card-border); background: rgba(255,255,255,0.03); font-size: 12px; color: var(--text-dim); }
.member .enter { margin-top: 18px; font-size: 14px; color: var(--text-dim); display: flex; align-items: center; gap: 6px; transition: gap 0.2s, color 0.2s; }
.member:hover .enter { color: var(--text); gap: 12px; }

/* 信条 */
.quote { margin: 100px 0; text-align: center; padding: 64px 24px; border-radius: 28px; background: linear-gradient(135deg, rgba(110,139,255,0.08), rgba(198,107,255,0.08)); border: 1px solid var(--card-border); }
.quote p { font-size: clamp(22px, 3.5vw, 34px); font-weight: 700; line-height: 1.4; max-width: 720px; margin: 0 auto; }
.quote .mark { color: var(--accent-2); }

footer { border-top: 1px solid var(--card-border); padding: 40px 0; text-align: center; color: var(--text-dim); font-size: 13px; }
footer .logo { justify-content: center; margin-bottom: 14px; }

/* 入场动画 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 760px) {
  .nav-links { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: 1fr; }
  .members-grid { grid-template-columns: 1fr; }
}

/* 开源图标库 Font Awesome 图标样式 */
.card .ico svg { width: 24px; height: 24px; color: #fff; }
.card .ico { color: #fff; }