:root{--fg: #0f172a;--muted: #64748b;--accent: #6366f1;--accent-strong: #4f46e5;--border: #e8ecf3;--bg: #ffffff;--bg-soft: #f8fafc;--radius: 16px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 4px 16px rgba(15, 23, 42, .05);--shadow-md: 0 8px 30px rgba(15, 23, 42, .1)}*{box-sizing:border-box}body{margin:0}.landing{color:var(--fg);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Pretendard,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}.container{max-width:1080px;margin:0 auto;padding:0 24px}a{color:var(--accent);text-decoration:none;transition:color .15s}a:hover{color:var(--accent-strong)}.hero{display:flex;flex-direction:column;gap:56px;padding:88px 24px 64px;background:radial-gradient(1100px 460px at 12% -8%,rgba(99,102,241,.1),transparent 60%),radial-gradient(900px 420px at 100% 0%,rgba(139,92,246,.08),transparent 55%)}.hero-copy{flex:1}.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.5px;color:var(--accent-strong);background:#6366f11a;padding:6px 12px;border-radius:999px}.hero h1{font-size:48px;line-height:1.1;letter-spacing:-1px;font-weight:800;margin:20px 0 18px;background:linear-gradient(120deg,#0f172a 30%,#4f46e5);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero p{font-size:18px;color:var(--muted);max-width:480px;margin:0}.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn-primary{display:inline-flex;align-items:center;padding:13px 26px;border-radius:12px;color:#fff;background:linear-gradient(120deg,var(--accent),#8b5cf6);font-weight:600;box-shadow:0 8px 22px #6366f159;transition:transform .15s,box-shadow .15s}.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px #6366f173}.btn-secondary{display:inline-flex;align-items:center;padding:13px 24px;border-radius:12px;color:var(--accent-strong);background:#fff;border:1px solid var(--border);font-weight:600;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s,border-color .15s}.btn-secondary:hover{color:var(--accent-strong);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}.hero-demo{flex:1;min-width:0}@media (min-width: 980px){.hero{flex-direction:row;align-items:center;gap:64px}}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.chip{border:1px solid var(--border);background:#fff;border-radius:999px;padding:7px 15px;font-size:13px;color:var(--fg);cursor:pointer;box-shadow:var(--shadow-sm);transition:all .15s}.chip:hover{border-color:var(--accent);color:var(--accent-strong);transform:translateY(-1px)}.demo-box{height:470px;overflow:hidden;border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow-md);background:#fff}.section{padding:72px 0}.section h2{text-align:center;font-size:30px;font-weight:800;letter-spacing:-.5px;margin:0 0 10px}.section .sub{text-align:center;color:var(--muted);margin:0 0 40px}.features{display:grid;grid-template-columns:1fr;gap:18px}@media (min-width: 640px){.features{grid-template-columns:1fr 1fr}}@media (min-width: 980px){.features{grid-template-columns:repeat(4,1fr)}}.feature{border:1px solid var(--border);border-radius:var(--radius);padding:24px;background:#fff;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s}.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.feature h3{margin:0 0 8px;font-size:16px;font-weight:700}.feature p{margin:0;font-size:14px;color:var(--muted)}.kg{display:flex;flex-direction:column;gap:24px;align-items:stretch}@media (min-width: 820px){.kg{flex-direction:row}}.kg-graph{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg-soft);box-shadow:var(--shadow-sm)}.kg-panel{flex:1;min-width:240px}.kg-count{font-size:13px;color:var(--muted);margin-bottom:10px}.kg-list{border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm)}.kg-node{display:flex;justify-content:space-between;align-items:center;gap:8px;width:100%;text-align:left;border:0;border-bottom:1px solid var(--border);background:#fff;padding:11px 14px;font-size:14px;cursor:pointer;transition:background .12s}.kg-node:last-child{border-bottom:0}.kg-node:hover{background:var(--bg-soft)}.kg-type{font-size:11px;color:var(--accent-strong);background:#6366f11a;padding:2px 8px;border-radius:999px}.kg-detail{margin-top:14px;border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:var(--shadow-sm)}.kg-detail-name{font-weight:700;font-size:15px;margin-bottom:6px}.kg-detail-desc{margin-top:8px;font-size:14px;color:var(--muted)}.contact{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}.contact-card{display:flex;align-items:center;gap:16px;padding:20px 26px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s,border-color .15s;min-width:264px}.contact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#6366f159}.contact-icon{display:grid;place-items:center;width:46px;height:46px;flex-shrink:0;border-radius:12px;color:#fff;background:linear-gradient(135deg,var(--accent),#8b5cf6);box-shadow:0 6px 16px #6366f14d}.contact-meta{display:flex;flex-direction:column;gap:3px}.contact-label{font-size:12px;font-weight:600;letter-spacing:.5px;color:var(--muted);text-transform:uppercase}.contact-value{font-size:16px;font-weight:700;color:var(--fg)}.contact-value:hover{color:var(--accent-strong)}.footer{border-top:1px solid var(--border);padding:44px 0 36px;background:var(--bg-soft)}.footer-inner{display:flex;flex-direction:column;gap:22px}.footer-top{display:flex;flex-wrap:wrap;gap:20px 32px;justify-content:space-between;align-items:flex-start}.footer-brand{display:flex;flex-direction:column;gap:5px}.footer-logo{font-size:18px;font-weight:800;letter-spacing:-.3px;background:linear-gradient(120deg,#0f172a 20%,#4f46e5);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.footer-tagline{margin:0;font-size:13px;color:var(--muted)}.footer-links{display:flex;flex-wrap:wrap;gap:22px;font-size:13px;font-weight:600}.footer-biz{display:flex;flex-direction:column;gap:3px;font-size:12.5px;color:var(--muted);line-height:1.7;padding-top:22px;border-top:1px solid var(--border)}.footer-biz b{color:var(--fg);font-weight:700;font-size:13.5px}.footer-copy{font-size:12px;color:var(--muted)}.doc-header{border-bottom:1px solid var(--border);padding:18px 0}.doc-home{font-weight:700}.doc{padding:48px 24px 72px;max-width:760px}.doc h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:0 0 8px}.doc h2{font-size:17px;font-weight:700;margin:32px 0 10px}.doc p,.doc li{color:#334155;font-size:15px}.doc ul{padding-left:20px}.doc li{margin:4px 0}.doc-meta{color:var(--muted);font-size:13px;margin:0 0 18px}.doc-note{background:#6366f112;border:1px solid var(--border);border-radius:10px;padding:12px 14px;font-size:13px;color:var(--muted)}