:root{--bg: #0d1117;--panel: #161b22;--panel-2: #1c2330;--border: #2b3544;--text: #e6edf3;--muted: #8b98a8;--accent: #4f9dff;--accent-2: #ffb347;--danger: #ff3a00}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:radial-gradient(1200px 700px at 50% -10%,#16202f 0%,var(--bg) 60%);color:var(--text);font-family:PingFang TC,Microsoft JhengHei,Noto Sans TC,system-ui,sans-serif}.app{display:flex;flex-direction:column;min-height:100%}.app-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:16px 24px;border-bottom:1px solid var(--border);background:#0d1117b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0;z-index:20}.app-title{display:flex;align-items:baseline;gap:10px}.logo{font-size:20px;font-weight:700;letter-spacing:.5px}.subtitle{color:var(--muted);font-size:13px}.app-nav{display:flex;gap:8px;flex-wrap:wrap}.nav-btn{display:flex;align-items:center;gap:8px;padding:9px 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14px;border-radius:12px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.temp-value{font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;color:#ffd9a0;min-width:92px;text-align:right}.thermo-track{position:relative;width:26px;height:150px;background:#0a0e16;border:1px solid var(--border);border-radius:6px;overflow:hidden}.thermo-fill{position:absolute;left:0;right:0;bottom:0;height:0%;background:#4f9dff;transition:height .05s linear,background .3s ease}.mark{position:absolute;left:30px;font-size:10px;color:var(--muted);white-space:nowrap}.mark-ignite{bottom:calc((190 - 25) / 475 * 100%);transform:translateY(50%);color:#ff9d66}.mark-max{top:0;transform:translateY(-20%)}.status{background:#0a0e16c7;border:1px solid var(--border);padding:8px 14px;border-radius:999px;font-size:13.5px;color:#cfe0f0;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.reset-btn{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:8px 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ease}.mode-btn:hover{border-color:var(--accent)}.mode-btn.active{background:linear-gradient(135deg,#1e3a63,#2a4d8f);border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}