:root{color-scheme:dark;--bg:#111512;--panel:#191e19;--ink:#eeeee2;--muted:#a4ad9d;--line:#333d31;--orange:#ff8b4d;--mono:Consolas,"Courier New",monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--orange)}::selection{background:var(--orange);color:var(--bg)}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}button,.button{transition:background .16s,border-color .16s}button:hover:not(:disabled),.button:hover{border-color:var(--orange)}.topbar{height:86px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 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p{font-size:13px;color:var(--muted);line-height:1.8;margin:0;max-width:660px}.intro-number{position:absolute;right:0;top:15px;font:72px Georgia,serif;color:#252e24;pointer-events:none}.panel{background:var(--panel);border:1px solid var(--line);border-radius:6px;margin-bottom:20px;padding:25px 27px}.panel-heading{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:23px}.panel-heading h2{font-size:16px;letter-spacing:-.25px;font-weight:500;margin:0}.step{color:var(--orange);font:10px var(--mono);margin-right:12px}.small{font-size:11px;color:var(--muted);line-height:1.6}.panel-heading .small{font:9px var(--mono);letter-spacing:.7px}.fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.fields.four{grid-template-columns:repeat(4,minmax(0,1fr))}.fields.two{grid-template-columns:repeat(2,minmax(0,1fr))}.field{display:flex;flex-direction:column;gap:9px;font-size:11px;color:var(--ink)}.field .unit{color:var(--muted);font-size:10px}.field 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