:root{--bg:#060a13;--bg-soft:#0b1220;--panel:#0f172ab8;--panel-solid:#0f172a;--border:#94a3b824;--border-strong:#94a3b842;--text:#e6edf7;--muted:#93a4bd;--primary:#6366f1;--primary-2:#22d3ee;--success:#34d399;--warn:#fbbf24;--danger:#f87171;--radius:16px;--shadow:0 20px 50px #0206178c}*{box-sizing:border-box}html,body{margin:0;padding:0}body{min-height:100vh;color:var(--text);-webkit-font-smoothing:antialiased;background:radial-gradient(1000px 600px at 12% -10%,#6366f138,#0000 60%),radial-gradient(900px 500px at 92% 0,#22d3ee24,#0000 55%),linear-gradient(#070c17 0%,#060a13 45%,#05080f 100%);font-family:system-ui,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 18px}.site-header{z-index:50;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);background:#060a13b8;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:16px;height:62px;display:flex}.brand{letter-spacing:.4px;align-items:center;gap:10px;font-size:17px;font-weight:700;display:flex}.brand-mark{background:linear-gradient(135deg, var(--primary), var(--primary-2));color:#04101a;border-radius:9px;place-items:center;width:30px;height:30px;font-size:15px;font-weight:800;display:grid}.nav{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.nav a{color:var(--muted);border-radius:10px;padding:8px 12px;font-size:14px;transition:all .18s}.nav a:hover{color:var(--text);background:#94a3b81a}.section{padding:28px 0}.hero{padding:54px 0 34px}.hero-title{letter-spacing:-.5px;margin:0 0 14px;font-size:clamp(28px,5vw,44px);font-weight:800;line-height:1.2}.hero-title span{background:linear-gradient(120deg,#a5b4fc,#22d3ee 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