.qk-info{--blue-900:#1e3a8a;--blue-800:#1e40af;--blue-700:#1d4ed8;--blue-100:#dbeafe;--blue-50:#eff6ff;--amber-600:#d97706;--amber-500:#f59e0b;--amber-300:#fcd34d;--bg:#fff;--bg-soft:#f8fafc;--head-top:#eff6ff;--border:#e2e8f0;--border-soft:#f1f5f9;--ink:#0f172a;--text:#334155;--text-2:#475569;--muted:#64748b;--faint:#94a3b8;--card:#fff;--nav-bg:var(--blue-900);--accent:#1d4ed8;--accent-soft:var(--blue-100);--font-display:var(--font-qk-display),"Baloo 2",system-ui,sans-serif;--font-body:var(--font-qk-body),"Nunito Sans",system-ui,sans-serif;--font-mono:var(--font-qk-mono),"IBM Plex Mono",ui-monospace,monospace;--maxw:1180px;--pad:36px;--nav-h:74px;--content-w:720px;font-family:var(--font-body);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;min-height:100vh;font-size:15px;line-height:1.55}@media (prefers-color-scheme:dark){.qk-info{--bg:#0b1220;--bg-soft:#131c2e;--head-top:#111a2e;--border:#24314a;--border-soft:#1b2740;--ink:#f1f5f9;--text:#cbd5e1;--text-2:#aebed3;--muted:#93a4bd;--faint:#6b7d99;--card:#131c2e;--nav-bg:#161d2e;--accent:#8bb4ff;--accent-soft:#8bb4ff59}}.qk-info *{box-sizing:border-box}.qk-info a{color:inherit;text-decoration:none}.qk-info button{cursor:pointer;font-family:inherit}.qk-info .wrap{max-width:var(--maxw);padding:0 var(--pad);margin:0 auto}.qk-info .topnav{background:var(--nav-bg);color:#ffffffe6;z-index:50;position:sticky;top:0}.qk-info .topnav .row{height:var(--nav-h);align-items:center;gap:30px;display:flex}.qk-info .brand{font-family:var(--font-display);letter-spacing:-.01em;white-space:nowrap;color:#ffffffd9;font-size:25px;font-weight:800}.qk-info .brand .k{color:var(--amber-500)}.qk-info .nav-cta{white-space:nowrap;background:linear-gradient(180deg,var(--amber-300),var(--amber-500));color:#3a2606;height:40px;font-family:var(--font-display);box-shadow:0 3px 0 var(--amber-600);border:none;border-radius:11px;align-items:center;gap:8px;margin-left:auto;padding:0 18px;font-size:14.5px;font-weight:800;display:inline-flex}.qk-info .nav-cta:active{box-shadow:0 1px 0 var(--amber-600);transform:translateY(2px)}.qk-info .nav-cta svg{width:16px;height:16px}.qk-info .info-head{background:linear-gradient(180deg,var(--head-top)0%,var(--bg)100%);border-bottom:1px solid var(--border-soft);padding:34px 0 0}.qk-info .crumbs{color:var(--muted);margin-bottom:36px;font-size:13px;font-weight:700}.qk-info .crumbs a:hover{color:var(--accent)}.qk-info .crumbs .sep{color:var(--faint);margin:0 8px}.qk-info .crumbs .curr{color:var(--text-2)}.qk-info .info-head-center{flex-direction:column;align-items:center;display:flex}.qk-info .info-icon{color:#fff;background:linear-gradient(140deg,var(--blue-700),var(--blue-900)75%);border-radius:24px;justify-content:center;align-items:center;width:90px;height:90px;margin:0 0 22px;display:flex;position:relative;overflow:hidden;box-shadow:0 18px 40px -14px #1e3a8a80}.qk-info .info-icon:after{content:"";opacity:.5;background-image:radial-gradient(circle at 1px 1px,#ffffff2e 1px,#0000 0);background-size:14px 14px;position:absolute;inset:0}.qk-info .info-icon svg{z-index:1;width:44px;height:44px;position:relative}.qk-info .info-head h1{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);text-align:center;margin:0;font-size:46px;font-weight:800;line-height:1.05}.qk-info .doc-tabs{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:26px;display:flex;transform:translateY(50%)}.qk-info .doc-tab{background:var(--card);border:1.5px solid var(--border);height:42px;color:var(--text-2);font-family:var(--font-display);border-radius:99px;align-items:center;gap:8px;padding:0 18px;font-size:14px;font-weight:700;transition:all .12s;display:inline-flex;box-shadow:0 4px 14px -8px #0f172a4d}.qk-info .doc-tab svg{opacity:.8;width:16px;height:16px}.qk-info .doc-tab:hover{color:var(--accent);border-color:var(--accent-soft)}.qk-info .doc-tab.on{background:var(--blue-900);border-color:var(--blue-900);color:#fff}.qk-info .doc-tab.on svg{opacity:1}.qk-info .content{padding:74px 0 56px}.qk-info .article{max-width:var(--content-w);color:var(--text-2);margin:0 auto;font-size:16px;line-height:1.72}.qk-info .article .updated{color:var(--muted);border-bottom:1px solid var(--border-soft);font-size:12.5px;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em;margin-bottom:30px;padding-bottom:16px}.qk-info .article .lead{color:var(--text-2);font-size:18px;line-height:1.6}.qk-info .article h2{font-family:var(--font-display);letter-spacing:-.01em;color:var(--ink);margin:42px 0 12px;font-size:25px;font-weight:700;line-height:1.2}.qk-info .article h3{font-family:var(--font-display);color:var(--ink);margin:26px 0 8px;font-size:18px;font-weight:700}.qk-info .article p{margin:0 0 16px}.qk-info .article ul,.qk-info .article ol{margin:0 0 20px;padding-left:22px}.qk-info .article li{margin-bottom:9px}.qk-info .article li::marker{color:var(--faint)}.qk-info .article a{color:var(--accent);text-decoration:underline;-webkit-text-decoration-color:var(--accent-soft);text-decoration-color:var(--accent-soft);text-underline-offset:3px;font-weight:700}.qk-info .article a:hover{-webkit-text-decoration-color:var(--accent);text-decoration-color:var(--accent)}.qk-info .article strong{color:var(--ink);font-weight:800}.qk-info .article blockquote{border-left:3px solid var(--accent);background:var(--bg-soft);color:var(--text-2);border-radius:0 8px 8px 0;margin:24px 0;padding:14px 18px;font-size:15px}.qk-info .article img{border-radius:12px;max-width:100%}.qk-info .stat-grid{grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0 34px;display:grid}.qk-info .stat{background:var(--bg-soft);border:1px solid var(--border-soft);border-radius:14px;padding:18px 20px}.qk-info .stat-n{font-family:var(--font-display);color:var(--accent);letter-spacing:-.02em;font-size:30px;font-weight:800;line-height:1.05}.qk-info .stat-l{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-top:5px;font-size:12px;font-weight:800}.qk-info .back-home{text-align:center;padding:30px 0 64px}.qk-info .btn-back{white-space:nowrap;background:var(--blue-900);color:#fff;height:50px;font-family:var(--font-display);border-radius:13px;align-items:center;gap:9px;padding:0 24px;font-size:16px;font-weight:700;transition:transform 80ms,box-shadow 80ms;display:inline-flex;box-shadow:0 4px #16295f}.qk-info .btn-back:active{transform:translateY(3px);box-shadow:0 1px #16295f}.qk-info .btn-back svg{width:18px;height:18px}.qk-info .app-cta{color:var(--text);background:#f59e0b1a;border-top:1px solid #f59e0b2e;padding:54px 0}.qk-info .app-cta-inner{text-align:center;flex-direction:column;align-items:center;gap:22px;display:flex}.qk-info .app-cta p{color:var(--text-2);max-width:460px;margin:0;font-size:16px;font-weight:600}.qk-info .app-cta-badges{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.qk-info .store{color:#fff;background:#000;border:1px solid #000;border-radius:11px;align-items:center;gap:11px;height:52px;padding:0 16px;display:inline-flex}.qk-info .store:hover{background:#1a1a1a}.qk-info .store .st-tx{flex-direction:column;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.05;display:flex}.qk-info .store .st-tx small{opacity:.95;font-size:10px;font-weight:400}.qk-info .store .st-tx b{font-size:19px;font-weight:600}.qk-info .store.gp .st-tx small{letter-spacing:1.4px;text-transform:uppercase;font-size:8.5px;font-weight:500}.qk-info footer{border-top:1px solid var(--border);background:var(--bg-soft);padding:44px 0 40px}.qk-info .foot-simple{text-align:center;flex-direction:column;align-items:center;gap:18px;display:flex}.qk-info .foot-brand{font-family:var(--font-display);color:var(--ink);letter-spacing:-.01em;font-size:22px;font-weight:800}.qk-info .foot-brand .k{color:var(--amber-600)}.qk-info .foot-links{flex-wrap:wrap;justify-content:center;gap:28px;display:flex}.qk-info .foot-links a{color:var(--text-2);white-space:nowrap;font-size:14px;font-weight:700}.qk-info .foot-links a:hover{color:var(--accent)}.qk-info .foot-copy{color:var(--faint);font-size:13px;font-weight:700}.qk-info .nf{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:52vh;padding:96px 24px 110px;display:flex}.qk-info .nf-code{font-family:var(--font-display);letter-spacing:-.03em;color:var(--accent);opacity:.16;-webkit-user-select:none;user-select:none;font-size:120px;font-weight:800;line-height:1}.qk-info .nf-title{font-family:var(--font-display);color:var(--ink);margin:-36px 0 10px;font-size:30px;font-weight:800}.qk-info .nf-text{color:var(--muted);max-width:420px;margin:0 0 26px;font-weight:600}@media (max-width:860px){.qk-info{--pad:20px}.qk-info .info-head h1{font-size:34px}.qk-info .stat-grid{grid-template-columns:1fr 1fr}}@media (max-width:560px){.qk-info .stat-grid{grid-template-columns:1fr}.qk-info .content{padding:64px 0 44px}}