@import "https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600;9..40,700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg:#f7f7f5;--card:#fff;--bg2:#f0efeb;--hover:#e8e7e2;--line:#dedcd6;--line-focus:#b8b6ae;--text:#1a1917;--muted:#5f5d55;--muted-soft:#9a978f;--label:#46443d;--accent:#2b6b4f;--accent-soft:#e5f3eb;--accent-bg:#cce8d8;--good:#2b6b4f;--good-soft:#e5f3eb;--good-border:#96d1ae;--warn:#c87e06;--warn-soft:#fef5e4;--warn-border:#f5d78e;--bad:#be3525;--bad-soft:#fceceb;--bad-border:#ec9e94;--info:#2665aa;--info-soft:#e9f0fa;--info-border:#93b8e0;--shadow:0 1px 2px #0000000a;--shadow-md:0 3px 12px #00000012;--radius:8px;--radius-lg:10px;--sans:"DM Sans", "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--mono:"JetBrains Mono", "Cascadia Code", "Consolas", monospace;--tr:.18s ease;color:var(--text);background:var(--bg);font-family:var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:14px;line-height:1.55}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{min-width:320px;height:100vh;margin:0;overflow:hidden}button,input,textarea,select{font:inherit}a{color:inherit;text-decoration:none}#root{flex-direction:column;height:100vh;display:flex;overflow:hidden}.topbar{border-bottom:1px solid var(--line);background:var(--card);z-index:50;justify-content:space-between;align-items:center;height:48px;padding:0 28px;display:flex;position:sticky;top:0}.topbar-left{align-items:center;gap:14px;display:flex}.topbar-back{color:var(--accent);background:var(--accent-soft);cursor:pointer;transition:all var(--tr);border:none;border-radius:6px;align-items:center;gap:4px;padding:5px 12px 5px 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16px}.mode-tab:hover{color:var(--text)}.mode-tab.active{background:var(--card);color:var(--text);box-shadow:var(--shadow);font-weight:600}.calc-indicator{color:var(--accent);align-items:center;gap:4px;font-size:11.5px;font-weight:500;display:flex}.calc-indicator:before{content:"";background:var(--accent);border-radius:50%;width:5px;height:5px;animation:2s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.topbar-meta{color:var(--muted-soft);font-size:11.5px}.topbar-aux{align-items:center;gap:6px;display:flex}.topbar-btn{cursor:pointer;color:var(--muted-soft);transition:all var(--tr);background:0 0;border:none;border-radius:4px;align-items:center;padding:4px;display:flex}.topbar-btn:hover{background:var(--hover);color:var(--muted)}.split{flex:1;width:100%;max-width:1280px;display:flex;overflow:hidden}.left-panel{background:var(--card);flex:1;min-width:0;max-width:860px;padding:32px 36px 60px;overflow-y:auto}.right-panel{background:var(--bg);flex:0 0 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