:root{--bg: #f7f8fb;--surface: #ffffff;--line: #dfe4ec;--line-soft: #edf0f5;--ink: #111827;--muted: #667085;--soft: #98a2b3;--navy: #111827;--cyan: #1899d6;--blue: #3268d8;--violet: #8b5cf6;--green: #18a568;--amber: #f3b21a;--red: #e13d3d;--shadow: 0 20px 60px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html{min-width:320px;background:var(--bg)}body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}.shell{width:min(1320px,calc(100% - 48px));margin:48px auto}.stage{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow)}.hero{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding:32px 36px 22px;border-bottom:1px solid var(--line-soft)}.eyebrow,.section-kicker{margin:0 0 8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:0;text-transform:uppercase}h1,h2,p{margin:0}h1{font-size:clamp(30px,4vw,54px);line-height:1.04;letter-spacing:0}h2{font-size:18px;line-height:1.25}.subhead{margin-top:10px;color:var(--muted);font-size:15px}.status-stack{display:inline-flex;align-items:center;gap:9px;min-height:36px;padding:0 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:#fbfcff;font-size:13px;font-weight:700;white-space:nowrap}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px #18a56824}.workspace{display:grid;grid-template-columns:minmax(0,1.55fr) 420px;gap:22px;padding:22px 36px 36px}.visual-card,.panel,.card,.metric-card{border:1px solid var(--line);border-radius:16px;background:var(--surface)}.primary-card{padding:16px}.card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:0 0 14px}.card-header.compact{align-items:center}.legend{display:grid;grid-template-columns:auto 96px auto;align-items:center;gap:10px;color:var(--muted);font-size:12px;font-weight:700}.legend i{display:block;height:9px;border-radius:999px;background:linear-gradient(90deg,#15223d,#2563eb,#14b8a6,#f8d44d,#ef4444)}.brain-frame{position:relative;overflow:hidden;border:1px solid var(--line-soft);border-radius:12px;min-height:520px;background:radial-gradient(circle at 34% 38%,rgba(50,104,216,.08),transparent 33%),linear-gradient(180deg,#fff,#fbfcff)}#megCanvas,#eegCanvas{display:block;width:100%}#megCanvas{height:min(58vw,620px);min-height:500px}.brain-meta{position:absolute;right:22px;bottom:20px;display:grid;place-items:center;width:96px;height:96px;border:1px solid rgba(50,104,216,.18);border-radius:50%;background:#ffffffbd;box-shadow:0 16px 32px #11182714;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brain-meta strong{display:block;max-width:72px;overflow:hidden;font-size:34px;line-height:1;text-overflow:ellipsis;white-space:nowrap}.brain-meta span{color:var(--muted);font-size:12px;font-weight:700}.control-column{display:grid;align-content:start;gap:14px}.panel{padding:18px}.panel h2{margin-bottom:14px}textarea{display:block;width:100%;min-height:120px;resize:vertical;border:1px solid #cfd6e1;border-radius:10px;padding:14px;color:var(--ink);background:#fbfcff;line-height:1.55;outline:none;transition:border-color .18s ease,box-shadow .18s ease}textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px #3268d81f}.panel-title-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.panel-title-row h2{margin:0}.ai-badge{padding:5px 9px;border:1px solid rgba(24,165,104,.18);border-radius:999px;color:var(--green);background:#18a56814;font-size:11px;font-weight:900}.input-label,.assist-block>span{display:block;margin-bottom:8px;color:var(--muted);font-size:12px;font-weight:800}input{width:100%;min-height:44px;border:1px solid #cfd6e1;border-radius:10px;padding:0 13px;color:var(--ink);background:#fbfcff;outline:none;transition:border-color .18s ease,box-shadow .18s ease}input:focus{border-color:var(--blue);box-shadow:0 0 0 4px #3268d81f}.ai-panel{display:grid;gap:14px}.assist-block{min-width:0}.candidate-rail,.semantic-rail{display:flex;flex-wrap:wrap;gap:8px}.candidate-rail button,.semantic-rail button{min-height:34px;max-width:100%;border:1px solid var(--line);border-radius:9px;padding:0 10px;color:#344054;background:#fff;font-size:13px;font-weight:800;transition:transform .18s ease,border-color .18s ease,background .18s ease,color .18s ease}.candidate-rail button:hover,.semantic-rail button:hover{transform:translateY(-1px);border-color:#3268d857;color:var(--blue);background:#3268d80f}.semantic-rail button{text-align:left}.candidate-rail kbd{display:inline-grid;place-items:center;min-width:18px;height:18px;margin-right:6px;border-radius:5px;color:#fff;background:var(--navy);font-size:11px;font-family:inherit}.efficiency-bar{display:grid;grid-template-columns:1fr 1fr;gap:10px}.efficiency-bar div{padding:12px;border:1px solid var(--line-soft);border-radius:12px;background:#fbfcff}.efficiency-bar span{display:block;color:var(--muted);font-size:12px;font-weight:700}.efficiency-bar strong{display:block;margin-top:4px;color:var(--ink);font-size:22px;line-height:1.1}#generateBtn,.upload-panel button{width:100%;min-height:48px;margin-top:12px;border:0;border-radius:10px;color:#fff;background:var(--navy);font-weight:800}.typed-strip{display:flex;flex-wrap:wrap;gap:8px;min-height:78px;padding:12px;border:1px dashed #cfd6e1;border-radius:10px;background:#fbfcff}.typed-strip span{display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--muted);font-size:13px;font-weight:800}.typed-strip span.active{border-color:#3268d873;color:#fff;background:linear-gradient(135deg,var(--blue),var(--violet))}.mini-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.mini-metrics div,.metric-card{padding:14px;border:1px solid var(--line-soft);border-radius:12px;background:#fbfcff}.mini-metrics span,.metric-card span{display:block;color:var(--muted);font-size:12px;font-weight:700}.mini-metrics strong,.metric-card strong{display:block;margin-top:6px;color:var(--ink);font-size:22px;line-height:1.1}.signal-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:22px;margin-top:22px}.card{padding:18px;box-shadow:0 12px 32px #0f172a0d}.pill{min-width:68px;padding:8px 11px;border:1px solid rgba(50,104,216,.18);border-radius:999px;color:var(--blue);background:#3268d814;text-align:center;font-size:12px;font-weight:900}.keyboard{display:grid;gap:8px;padding:18px;border:1px solid var(--line-soft);border-radius:12px;background:#fbfcff}.key-row{display:flex;justify-content:center;gap:8px}.key{display:grid;place-items:center;width:clamp(30px,4.2vw,48px);aspect-ratio:1.03;border:1px solid #d8dee8;border-radius:8px;color:#344054;background:#fff;font-size:13px;font-weight:900;cursor:pointer;-webkit-user-select:none;user-select:none;transition:transform .18s ease,border-color .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease}.key.wide{width:clamp(76px,9vw,132px)}.key.active{transform:translateY(-3px);border-color:#3268d859;color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 16px 28px #3268d83d}.key.hot{border-color:#8b5cf666;color:#fff;background:linear-gradient(135deg,var(--violet),#ec4899)}.tabs{display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:#fbfcff}.tab{display:grid;place-items:center;width:34px;height:30px;border:0;border-radius:999px;color:var(--muted);background:transparent;font-weight:900}.tab.active{color:#fff;background:var(--navy)}.eeg-card{min-width:0}#eegCanvas{height:260px;border:1px solid var(--line-soft);border-radius:12px;background:#fbfcff}.metrics-row{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;margin-top:22px}.metric-card{box-shadow:0 12px 32px #0f172a0d}@media(max-width:1100px){.workspace,.signal-grid{grid-template-columns:1fr}.control-column{grid-template-columns:1fr 1fr}}@media(max-width:760px){.shell{width:min(100% - 24px,1320px);margin:24px auto}.hero{display:block;padding:24px 18px 18px}.status-stack{margin-top:18px}.workspace{padding:18px}.metrics-row{grid-template-columns:repeat(2,1fr)}.control-column{grid-template-columns:1fr}.brain-frame{min-height:390px}#megCanvas{height:420px;min-height:390px}.signal-grid,.metrics-row{gap:14px;margin-top:14px}.legend{display:none}.key{width:clamp(24px,8vw,40px);font-size:11px}.efficiency-bar,.metrics-row{grid-template-columns:1fr}}
