:root{--sky:#dceaf7;--pastel:#b9d2ea;--mid:#7299c2;--deep:#243d5a;--gold:#c5a45d;--gold-l:#e8d6a5;--white:#fafbfd;--text:#1f3047;--muted:#5b6f88;--line:#d7e3ef;--danger:#b3402f;--ok:#2f7d4f;--radius:14px;--shadow:0 2px 10px #243d5a14;color:var(--text);background:var(--white);font-family:Inter,Segoe UI,system-ui,-apple-system,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:linear-gradient(180deg,var(--white),#f1f6fb);font-size:16px;line-height:1.5}a{color:var(--deep)}h1,h2,h3{color:var(--deep);margin:.2em 0 .5em;font-weight:650}h1{font-size:1.6rem}h2{font-size:1.25rem}h3{font-size:1.05rem}.logo{letter-spacing:.32em;color:var(--deep);font-family:Georgia,Times New Roman,serif;font-weight:700}.logo span{color:var(--gold)}.app{min-height:100vh;display:flex}.side{border-right:1px solid var(--line);background:#fff;flex-shrink:0;width:248px;height:100vh;padding:18px 12px;position:sticky;top:0;overflow:auto}.side .logo{padding:4px 12px 18px;font-size:1.5rem;display:block}.side img.brand{max-width:160px;max-height:48px;margin:0 12px 14px}.nav a{color:var(--text);border-radius:10px;align-items:center;gap:10px;padding:10px 12px;font-weight:500;text-decoration:none;display:flex}.nav a.active{background:var(--sky);color:var(--deep);box-shadow:inset 3px 0 0 var(--gold)}.nav a:hover{background:#eef4fa}.main{flex:1;min-width:0;padding:22px clamp(14px,3vw,34px) 90px}.topbar{display:none}@media (width<=860px){.side{z-index:50;box-shadow:var(--shadow);transition:left .2s;position:fixed;left:-270px}.side.open{left:0}.topbar{border-bottom:1px solid var(--line);z-index:40;background:#fff;justify-content:space-between;align-items:center;padding:10px 14px;display:flex;position:sticky;top:0}.app{flex-direction:column}}.card{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:16px}.grid{gap:14px;display:grid}.g2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.g3{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.g4{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.stat{color:var(--deep);font-size:2rem;font-weight:700}.stat-l{color:var(--muted);font-size:.9rem}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.sp{flex:1}.btn{border:1px solid var(--pastel);color:var(--deep);cursor:pointer;background:#fff;border-radius:10px;align-items:center;gap:6px;min-height:40px;padding:9px 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9px;font-size:.75rem;font-weight:600;display:inline-block}.badge.gold{background:var(--gold-l);color:#6a5321}.badge.ai{color:#5b2d86;background:#f3e6ff}.badge.ok{color:var(--ok);background:#dff1e6}.badge.warn{color:#8a5208;background:#fdecd6}.muted{color:var(--muted)}.err{color:var(--danger);font-weight:600}.okmsg{color:var(--ok);font-weight:600}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:9px 8px}th{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:.8rem}.list-item{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:10px;display:flex}.list-item:last-child{border-bottom:0}.tabs{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.tabs button{border:1px solid var(--line);cursor:pointer;color:var(--muted);background:#fff;border-radius:999px;padding:7px 12px;font-weight:600}.tabs button.on{background:var(--deep);color:#fff;border-color:var(--deep)}.auth-wrap{background:radial-gradient(circle at 30% 20%,var(--sky),var(--white) 60%);place-items:center;min-height:100vh;padding:20px;display:grid}.auth{width:min(420px,100%)}.auth .logo{text-align:center;margin-bottom:6px;font-size:2.2rem;display:block}.cp{white-space:normal;font-family:ui-monospace,Menlo,Consolas,monospace}.cp .sec{margin:0 0 18px}.cp .sec-l{color:var(--gold);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px;font-family:Inter,system-ui,sans-serif;font-size:.8rem;font-weight:700}.cp .ln{flex-wrap:wrap;align-items:flex-end;margin-bottom:2px;display:flex}.cp .ch{white-space:pre;flex-direction:column;display:inline-flex}.cp .ch b{color:#1d5fa8;cursor:pointer;min-height:1.3em;font-weight:700}.cp .ch b:hover{text-decoration:underline}.cp .cm{color:var(--muted);font-family:Inter,sans-serif;font-style:italic}.piano{-webkit-user-select:none;user-select:none;height:130px;position:relative;overflow-x:auto}.piano .k{border:1px solid #9fb2c8;border-radius:0 0 6px 6px;position:absolute;top:0}.piano .w{z-index:1;background:#fff;height:128px}.piano .b{z-index:2;background:#1f2a37;height:80px}.piano .on.w{background:var(--gold-l)}.piano .on.b{background:var(--gold)}.piano .lh.w{background:#cfe0f3}.piano .lh.b{background:var(--mid)}.piano .lbl{text-align:center;width:100%;color:var(--deep);font-size:.68rem;font-weight:700;position:absolute;bottom:4px}.piano .b .lbl{color:#fff}.stage{text-align:center;z-index:100;justify-content:center;align-items:center;display:flex;position:fixed;inset:0;overflow:hidden}.stage .slide{white-space:pre-line;max-width:92vw;max-height:88vh;font-weight:600;line-height:1.25;transition:opacity .35s}.stage .ref{opacity:.85;font-size:2.2vh;position:absolute;bottom:3vh;left:0;right:0}.stage .hud{opacity:.15;gap:8px;transition:opacity .2s;display:flex;position:absolute;top:10px;right:12px}.stage:hover .hud{opacity:.95}.stage.hidecontrols .hud{display:none}.stage .counter{opacity:.6;font-size:1.6vh;position:absolute;bottom:10px;right:14px}.musician{color:var(--text);z-index:100;background:#fff;padding:18px 24px;position:fixed;inset:0;overflow:auto}.musician .now{border:3px solid var(--gold);background:#fffdf6;border-radius:14px;padding:14px}.musician .next{border:2px dashed var(--pastel);opacity:.8;border-radius:14px;margin-top:14px;padding:12px}.thumb{border:1px solid var(--line);cursor:pointer;white-space:pre-line;background:#fff;border-radius:10px;max-height:110px;padding:8px;font-size:.85rem;overflow:hidden}.thumb.cur{border:2px solid var(--gold);background:#fffaf0}.remote-btn{border-radius:16px;flex:1;padding:22px;font-size:1.4rem}.drag{cursor:grab}.drag.over{outline:2px dashed var(--gold)}.fret{font-family:ui-monospace,monospace}.verse-num{color:var(--gold);vertical-align:super;margin-right:3px;font-size:.75rem;font-weight:700}.verse{cursor:pointer;border-radius:4px;padding:1px 2px}.verse.sel{background:var(--sky)}.hl-yellow{background:#fff3b0}.hl-blue{background:#d6e8fb}.hl-green{background:#dcf3df}.hl-pink{background:#fbe0ec}.toast{background:var(--deep);color:#fff;z-index:200;box-shadow:var(--shadow);border-radius:10px;padding:10px 16px;position:fixed;bottom:16px;left:50%;transform:translate(-50%)}@media (width<=640px){.hide-mobile{display:none}}.lp{max-width:1180px;margin:0 auto;padding:0 clamp(14px,3vw,28px) 40px}.lp-top{flex-wrap:wrap;align-items:center;gap:14px;padding:16px 0;display:flex}.lp-top .logo{font-size:1.5rem}.lp-top a:not(.btn){color:var(--text);font-weight:500;text-decoration:none}.lp-top select{width:auto;min-height:36px}.lp-hero{grid-template-columns:1.1fr 1fr;align-items:center;gap:34px;padding:40px 0 30px;display:grid}.lp-hero h1{margin:.2em 0;font-size:clamp(1.9rem,4.2vw,3rem);line-height:1.12}.lp-kicker{color:var(--gold);letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:.85rem;font-weight:700}.lp-sub{color:var(--muted);max-width:56ch;font-size:1.1rem}.btn.lg{padding:12px 20px;font-size:1.05rem}.lp-shot{background:linear-gradient(160deg,#fff,var(--sky));overflow:hidden}.lp-shot .piano{margin-top:10px;min-width:0!important}.lp-sec{padding:34px 0}.lp-sec>h2{text-align:center;margin-bottom:22px;font-size:1.7rem}.lp-feat h3{margin:.3em 0}.lp-feat p{color:var(--muted);margin:0;font-size:.95rem}.lp-ico{font-size:1.6rem}.lp-mini{flex-direction:column;gap:8px;min-height:220px;display:flex}.lp-screen{background:var(--deep);color:#fff;text-align:center;aspect-ratio:16/9;border-radius:10px;flex:1;place-items:center;padding:18px;font-size:1.2rem;font-weight:600;display:grid}.lp-phone{border:2px solid var(--deep);text-align:center;border-radius:22px;max-width:200px;margin:0 auto;padding:16px}.lp-code{letter-spacing:.15em;color:var(--deep);margin-bottom:10px;font-family:monospace;font-size:1.6rem}.lp-plans{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;display:grid}.lp-plan{flex-direction:column;gap:6px;display:flex}.lp-plan.hot{border:2px solid var(--deep)}.lp-plan.gold{border:2px solid var(--gold);background:linear-gradient(#fff,#fbf6ea)}.lp-plan h3{margin:0}.lp-price{color:var(--deep);font-size:1.7rem;font-weight:750}.lp-price small{color:var(--muted);font-size:.85rem;font-weight:500}.lp-plan ul{flex:1;margin:6px 0 10px;padding:0;font-size:.9rem;list-style:none}.lp-plan li{border-bottom:1px dashed var(--line);padding:3px 0}.lp-plan li.off{color:#9aa9ba}.lp-plan .btn{justify-content:center}.lp-note{text-align:center;max-width:70ch;margin:16px auto 0}.lp-faq{gap:10px;max-width:820px;margin:0 auto;display:grid}.lp-faq summary{cursor:pointer;color:var(--deep);font-weight:600}.lp-contact{max-width:680px;margin:0 auto}.lp-hp{opacity:0;width:1px;height:1px;position:absolute;left:-9999px}.lp-foot{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;align-items:center;gap:14px;padding:20px 0;display:flex}.lp-foot .logo{font-size:1.1rem}@media (width<=860px){.lp-hero{grid-template-columns:1fr;padding-top:16px}}