:root{--ink: #1f2933;--muted: #6b7280;--line: #e5e7eb;--primary: #4f46e5;--bg: #f4f5f8}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}button,textarea,input{font:inherit}.container{max-width:1080px;margin:0 auto;padding:0 24px}.app-header{background:linear-gradient(135deg,#4f46e5,#7c6cf0);color:#fff;padding:36px 0 40px}.app-header h1{margin:0 0 8px;font-size:26px}.app-header p{margin:0;max-width:640px;color:#ffffffe6;font-size:15px}main.container{padding-top:28px;padding-bottom:48px}.card{background:#fff;border-radius:16px;padding:22px 24px;box-shadow:0 6px 24px #1118270f;margin-bottom:22px}.card-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}.card-head h2{margin:0;font-size:18px}.step{width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;font-size:14px;display:flex;align-items:center;justify-content:center;flex:none}.hint,.clock{margin-left:auto;font-size:13px;color:var(--muted)}.clock{background:#eef2ff;color:var(--primary);padding:4px 10px;border-radius:999px;font-variant-numeric:tabular-nums}label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px}input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px}input:focus,textarea:focus{outline:none;border-color:var(--primary)}textarea{min-height:110px;resize:vertical}.actions{margin-top:16px;display:flex;gap:10px}button{border:0;border-radius:10px;padding:10px 18px;background:var(--primary);color:#fff;cursor:pointer;font-size:14px}button:disabled{opacity:.5;cursor:not-allowed}button.ghost{background:#eef0f4;color:var(--ink)}.banner-error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:12px 16px;border-radius:10px;margin-bottom:20px;font-size:14px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}@media (max-width: 760px){.grid{grid-template-columns:1fr}}.roster{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}@media (max-width: 760px){.roster{grid-template-columns:repeat(2,1fr)}}.student-card{border:1px solid var(--line);border-radius:12px;padding:12px}.student-name{font-weight:600}.student-archetype{font-size:12px;color:var(--muted);margin:2px 0 10px}.bar-row{display:flex;align-items:center;gap:6px}.bar-label{font-size:11px;color:var(--muted);flex:none}.bar{flex:1;height:6px;background:#eef0f4;border-radius:999px;overflow:hidden}.bar-fill{height:100%;background:var(--primary)}.plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 28px}@media (max-width: 760px){.plan-grid{grid-template-columns:1fr}}.plan-grid h3,.report h3{font-size:14px;margin:0 0 8px}.plan-grid ul{margin:0;padding-left:18px;font-size:14px}.plan-grid li{margin-bottom:4px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{background:#eef2ff;color:var(--primary);border-radius:999px;padding:5px 12px;font-size:13px}.quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.chip-btn{background:#f3f4f6;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12px}.empty{color:var(--muted);font-size:14px}.event{border-left:3px solid var(--line);background:#fafafb;border-radius:0 10px 10px 0;padding:10px 14px;margin-bottom:12px}.event-top{display:flex;align-items:center;gap:8px}.event-name{font-weight:600}.event-time{margin-left:auto;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.event-say{margin:8px 0 4px}.event-do{margin:4px 0;font-size:14px;color:#374151}.event-reason{color:var(--muted)}.badge{font-size:12px;padding:2px 9px;border-radius:999px}.ev-question{border-left-color:#3b82f6}.ev-wrong{border-left-color:#f59e0b}.ev-correct{border-left-color:#10b981}.ev-distraction{border-left-color:#9ca3af}.ev-emotion{border-left-color:#ec4899}.ev-positive{border-left-color:#10b981}.badge.ev-question{background:#dbeafe;color:#1d4ed8}.badge.ev-wrong{background:#fef3c7;color:#b45309}.badge.ev-correct{background:#d1fae5;color:#047857}.badge.ev-distraction{background:#e5e7eb;color:#4b5563}.badge.ev-emotion{background:#fce7f3;color:#be185d}.badge.ev-positive{background:#d1fae5;color:#047857}.report .summary{background:#eef2ff;border-radius:10px;padding:12px 14px;font-size:14px}.metric-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:18px 0 22px}@media (max-width: 760px){.metric-grid{grid-template-columns:repeat(2,1fr)}}.metric{border:1px solid var(--line);border-radius:10px;padding:12px;text-align:center}.metric-value{font-size:22px;font-weight:700;color:var(--primary)}.metric-label{font-size:12px;color:var(--muted);margin-top:4px}.app-footer{text-align:center;color:var(--muted);font-size:12px;margin-top:12px}