:root{--ink:#142a42;--muted:#566b7b;--blue:#126caa;--teal:#168b79;--line:#d8e5e9;--paper:#f2f7f8;--card:#fff;--shadow:0 14px 40px rgba(19,49,67,.05)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);font:15px/1.65 "Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink)}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,select,textarea{font:inherit}button,a.button{cursor:pointer}button:disabled,select:disabled{opacity:.5;cursor:wait}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #51cbb3;outline-offset:3px}[hidden]{display:none!important}
.site-header{max-width:1260px;margin:auto;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:23px;font-weight:800;letter-spacing:-.6px;color:var(--ink)}.brand span{font-size:10px;letter-spacing:2px;margin-left:10px;color:var(--teal);font-weight:700}.site-header nav{display:flex;gap:24px;font-size:14px}.site-header nav a[aria-current]{color:var(--teal);font-weight:700}main{max-width:1260px;padding:0 28px;margin:auto}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;align-items:center;padding:46px 0 38px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:750;color:var(--teal);margin:0 0 12px}h1{font-size:clamp(30px,3.4vw,47px);line-height:1.25;letter-spacing:-1.2px;margin:0 0 24px}h2{font-size:25px;line-height:1.4;letter-spacing:-.5px;margin:0 0 12px}.lead{font-size:17px;max-width:590px;color:var(--muted)}.identity,.subtle{font-size:13px;color:var(--muted)}.question-card{background:#16364f;color:#fff;padding:32px;border-radius:20px;box-shadow:0 20px 50px #15364e18}.question-card p{color:#c4dbe5;font-size:14px}.chip{font-size:11px;font-weight:650;display:inline-block;letter-spacing:.4px;padding:5px 10px;border-radius:99px;background:#dff5ee;color:#14745f;margin-bottom:16px}.chip.light{background:#eaf5f5;color:#207b72;margin:0;white-space:nowrap}.flow{display:flex;align-items:center;gap:13px;margin-top:26px}.flow span{font-size:12px;border:1px solid #658a9b;border-radius:7px;padding:6px 10px}.flow b{color:#67d2b4}
.notice{padding:13px 17px;border-left:3px solid var(--teal);background:#e7f3ef;border-radius:0 7px 7px 0;font-size:14px;margin:12px 0 18px}.notice.warning{background:#fff0de;border-color:#d59337;color:#7b541a}.notice.error{background:#fbeaea;border-color:#c45a50;color:#8f332f}.notice.soft{background:#f1f7f7;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0}.metrics>div{background:white;padding:20px 22px;border:1px solid var(--line);border-radius:12px}.metrics span{display:block;font-size:12px;color:var(--muted)}.metrics strong{font-size:29px;letter-spacing:-.6px;display:block;margin:6px 0}.metrics small{font-size:11px;color:var(--muted);display:block}.panel{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:28px;margin:22px 0}.section-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}.section-head .eyebrow{margin-bottom:7px}.section-head h2{margin:0}.protocol-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.protocol-grid p{margin:0}.protocol-grid b{display:block;font-size:12px;color:var(--teal);margin-bottom:6px}.protocol-grid span{font-size:14px}details{border-top:1px solid var(--line);margin-top:20px;padding-top:14px}summary{cursor:pointer;font-size:13px;font-weight:700;color:var(--blue)}pre{max-height:340px;overflow:auto;padding:16px;background:#f3f7f9;border:1px solid var(--line);font-size:12px;line-height:1.6;border-radius:7px;white-space:pre-wrap;overflow-wrap:anywhere}.mono,code{font-family:Consolas,monospace;font-size:12px;overflow-wrap:anywhere}.controls{display:flex;gap:24px;flex-wrap:wrap}label{font-size:12px;color:var(--muted);font-weight:600}select{display:block;min-width:230px;padding:10px 32px 10px 12px;margin-top:6px;background:white;color:var(--ink);border:1px solid #afc6cf;border-radius:7px;font-size:14px}.chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;min-width:0}.chart{min-width:0;min-height:300px}.wide-chart{min-height:340px;min-width:0}.id-row{display:flex;gap:18px;align-items:center;flex-wrap:wrap;background:#f5f8f9;padding:12px;border-radius:7px;font-size:12px}.id-row code{color:var(--blue)}.table-wrap{overflow-x:auto;margin:16px 0}table{width:100%;border-collapse:collapse;min-width:580px;text-align:left;font-size:13px}caption{text-align:left;color:var(--muted);font-size:12px;margin-bottom:10px}th{background:#eff5f7;font-weight:650;color:#435d6e}th,td{padding:11px 13px;border-bottom:1px solid var(--line);white-space:nowrap}td:last-child{white-space:normal}tbody tr:hover{background:#f8fbfb}.tag{font-size:11px;border-radius:4px;padding:3px 6px;background:#e3f4ec;color:#1c765b}.tag.neutral{color:#6d727b;background:#edf0f3}.pair-select{display:block;margin-top:25px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 8px}button,.button{padding:9px 14px;background:var(--blue);border:1px solid var(--blue);color:white;border-radius:6px;font-size:13px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.secondary,.button.secondary{color:var(--blue);background:white;border:1px solid #b3cbd5}.button:hover{background:#eef6f8;color:var(--blue);text-decoration:none}textarea{width:100%;min-height:280px;padding:15px;border:1px solid var(--line);border-radius:7px;font:12px/1.5 Consolas,monospace}.boundary{margin:32px 0 44px;border-left:3px solid #a3bbc6;padding:6px 25px;color:var(--muted)}.boundary h2{font-size:18px;color:var(--ink)}.boundary p{font-size:14px}footer{max-width:1260px;margin:0 auto;padding:20px 28px 35px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}footer p{max-width:1020px}
@media(max-width:850px){.hero{gap:25px;padding-top:25px}.metrics{grid-template-columns:repeat(2,1fr)}.protocol-grid{grid-template-columns:repeat(2,1fr)}.chart-grid{grid-template-columns:1fr}.site-header nav{gap:12px;font-size:12px}.panel{padding:22px}}
@media(max-width:590px){.site-header{padding:18px 18px;flex-direction:column;align-items:flex-start;gap:12px}main{padding:0 16px}.hero{grid-template-columns:1fr;gap:20px;padding:25px 0 20px}h1{font-size:32px;letter-spacing:-.8px}h2{font-size:21px}.question-card{padding:24px}.flow{gap:10px}.metrics{gap:10px}.metrics>div{padding:16px}.metrics strong{font-size:26px}.metrics small{font-size:10px}.panel{padding:18px 14px}.protocol-grid{gap:18px}.section-head{align-items:flex-start}.section-head .chip{max-width:120px;white-space:normal;font-size:10px}.controls{gap:13px}.controls label{width:100%}select{width:100%;min-width:0}.chart{min-height:300px}.actions>*{flex:1 1 160px}.id-row{gap:9px;align-items:flex-start;flex-direction:column}footer{padding:18px}.boundary{padding-left:17px}.wide-chart{min-height:330px}}
@media print{body{background:white;font-size:10pt}.site-header nav,.actions,.controls,.pair-select,#retry{display:none}.hero{padding:15px 0;gap:20px}.question-card{background:#fff;color:var(--ink);border:1px solid #ccc}.question-card p{color:var(--muted)}.flow{display:none}.panel{box-shadow:none;break-inside:avoid;margin:15px 0;padding:16px}.chart-grid{grid-template-columns:1fr 1fr}.chart{min-height:250px}.metrics{grid-template-columns:repeat(4,1fr)}.table-wrap{overflow:visible}table{min-width:0;font-size:9pt}th,td{padding:6px}h1{font-size:25pt}h2{font-size:16pt}pre{max-height:none}footer{font-size:8pt}}