:root{--bg: #f4f6f9;--surface: #ffffff;--border: #e2e8f0;--text: #1e293b;--muted: #64748b;--faint: #94a3b8;--accent: #1f6feb;--accent-dark: #1a5fd0;--green: #16a34a;--amber: #d97706;--red: #dc2626}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Noto Sans TC,system-ui,-apple-system,PingFang TC,Microsoft JhengHei,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.app{max-width:760px;margin:0 auto;padding:40px 20px 72px}.app__header{text-align:center;margin-bottom:32px}.app__header h1{font-size:1.7rem;font-weight:700;letter-spacing:.5px;margin:0;color:var(--text)}.app__sub{color:var(--muted);margin:8px 0 0;font-size:.98rem}.app__control{text-align:center;margin:32px 0 40px}.record-btn{font-size:1.1rem;font-weight:600;padding:16px 40px;border:none;border-radius:10px;color:#fff;background:var(--accent);cursor:pointer;transition:background .15s ease,box-shadow .15s ease;min-width:220px;box-shadow:0 1px 3px #1f6feb40}.record-btn:hover{background:var(--accent-dark)}.record-btn:disabled{cursor:default;opacity:.7}.record-btn--recording{background:var(--red);box-shadow:0 0 #dc262666;animation:pulse 1.4s infinite}.record-btn--processing{background:var(--faint)}@keyframes pulse{0%,to{box-shadow:0 0 #dc262666}50%{box-shadow:0 0 0 10px #dc262600}}.alert{margin:18px auto 0;max-width:460px;background:#fef3c7;border:1px solid #fcd34d;color:#92400e;padding:10px 16px;border-radius:8px;font-size:.95rem}.section-title{font-size:.85rem;font-weight:600;color:var(--faint);letter-spacing:1px;margin:28px 0 12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-bottom:14px;box-shadow:0 1px 2px #0f172a0a}.card--primary{border-color:var(--accent);box-shadow:0 2px 10px #1f6feb1a}.card__head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}.badge{font-size:.78rem;font-weight:500;padding:3px 11px;border-radius:999px;background:#eef2f7;color:var(--muted)}.conf{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:600;padding:3px 11px;border-radius:999px}.conf__dot{width:8px;height:8px;border-radius:50%;background:currentColor;display:inline-block}.conf--high{color:var(--green);background:#ecfdf3}.conf--medium{color:var(--amber);background:#fffbeb}.conf--low{color:var(--red);background:#fef2f2}.player{height:32px;margin-left:auto}.card__zh{font-size:1.45rem;font-weight:600;line-height:1.55;color:var(--text)}.card__raw,.card__uncertain{margin-top:12px;color:var(--muted);font-size:.92rem;line-height:1.6}.card__label{display:inline-block;font-size:.72rem;color:var(--faint);margin-right:8px;padding:1px 7px;border:1px solid var(--border);border-radius:6px;vertical-align:middle}.chip{display:inline-block;background:#fef2f2;color:var(--red);padding:2px 9px;border-radius:6px;margin:0 6px 5px 0;font-size:.85rem}.empty{text-align:center;color:var(--faint);margin-top:36px}.app__footer{margin-top:48px;text-align:center;color:var(--faint);font-size:.8rem;line-height:1.6}