:root{--ink:#172336;--muted:#67758b;--line:#e3e8f0;--bg:#f5f7fb;--accent:#2d5bff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 "Segoe UI","Microsoft YaHei",sans-serif}button,input,select{font:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,a,input,select{outline-offset:4px}button{cursor:pointer}aside{position:fixed;inset:0 auto 0 0;width:246px;background:#101d30;color:#d5deed;padding:32px 22px;display:flex;flex-direction:column} .brand{font-size:20px;color:white;font-weight:750;letter-spacing:.5px}.brand small{display:block;font-size:10px;letter-spacing:3px;color:#88a0bb;margin:5px 0 38px}.nav button{display:block;text-align:left;width:100%;border:0;background:none;color:#aabbd1;padding:12px 15px;margin:6px 0;border-radius:8px}.nav button.active{background:#263954;color:white}.nav button:hover{background:#1e3049}.side-foot{margin-top:auto;font-size:11px;color:#8498b3}.side-foot a{color:#bccce1}main{margin-left:246px;padding:0 48px 64px;max-width:1600px}header{display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--line);padding:20px 0;font-size:12px;color:var(--muted)}.pill{display:inline-block;border:1px solid var(--line);border-radius:30px;padding:3px 11px;background:white;font-size:11px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:700;margin-bottom:18px}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:38px;padding:48px 0 34px;align-items:center}h1{font-size:42px;letter-spacing:-1.5px;line-height:1.18;margin:0 0 18px;max-width:650px}h1 small{display:block;font-size:19px;letter-spacing:0;font-weight:500;color:var(--muted);margin-top:14px}.hero p{color:var(--muted);max-width:620px}.btn{border:0;border-radius:7px;padding:10px 20px;background:var(--accent);color:white;display:inline-block;margin-top:10px}.ghost{background:white;color:var(--ink);border:1px solid var(--line);margin-left:8px}.diagram{border:1px solid var(--line);border-radius:12px;padding:24px;background:linear-gradient(140deg,#fff,#edf1f9)}.diagram .node{background:white;padding:12px 16px;border:1px solid #dce3ef;border-radius:8px;margin:9px 0;font-size:12px;display:flex;justify-content:space-between}.diagram .arrow{color:var(--accent);padding-left:20px;line-height:1}.diagram small{font-size:10px;color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 0 28px}.stat{background:white;border:1px solid var(--line);border-radius:10px;padding:19px 24px}.stat b{display:block;font-size:32px;letter-spacing:-1px}.stat span{color:var(--muted);font-size:12px}.section-head{display:flex;justify-content:space-between;gap:15px;align-items:center;margin:28px 0 15px}h2{font-size:22px;margin:0}h3{font-size:16px;margin:0 0 10px}.panel{background:white;padding:26px;border:1px solid var(--line);border-radius:10px;margin-bottom:20px}.panel p{margin:8px 0;color:var(--muted)}.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.step{display:flex;gap:18px}.step b.num{font-size:13px;color:var(--accent);padding-top:3px}.step p{font-size:13px}.note{background:#eef2f7;padding:17px 20px;border-left:3px solid var(--accent);font-size:13px;margin:18px 0;line-height:1.9}.tabscreen{display:none}.tabscreen.active{display:block}.page-title{padding:35px 0 15px}.page-title p{color:var(--muted);font-size:13px}.filters{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}input,select{background:white;border:1px solid #d4dce8;border-radius:7px;padding:10px 12px;color:var(--ink)}.filters input{flex:1;min-width:200px}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:10px}table{border-collapse:collapse;width:100%;font-size:13px}th{text-align:left;background:#eef2f7;color:var(--muted);font-size:11px;white-space:nowrap}td,th{padding:13px 17px;border-bottom:1px solid var(--line)}td:first-child{font-family:Consolas,monospace;color:var(--accent);font-weight:600}td:nth-child(2){min-width:180px}tr:last-child td{border-bottom:0}tbody tr:hover{background:#f7f9ff}.linkbtn{padding:3px 10px;color:var(--accent);border:1px solid var(--line);background:white;border-radius:5px;white-space:nowrap}.pager{display:flex;justify-content:space-between;align-items:center;padding:17px 0;font-size:12px;color:var(--muted)}.pager button{margin-left:8px}.paper{display:grid;grid-template-columns:65px 1fr;gap:16px}.paper .year{color:var(--accent);font:600 17px Consolas,monospace;overflow-wrap:anywhere}.paper h3{font-size:17px;line-height:1.5}.paper small{color:var(--muted)}.badge{font-size:10px;color:var(--accent);padding:2px 7px;background:#f0f3fa;border-radius:4px;display:inline-block;margin-bottom:8px}.empty{padding:45px;text-align:center;color:var(--muted)}dialog{border:0;border-radius:14px;max-width:800px;width:calc(100% - 35px);max-height:85vh;box-shadow:0 20px 100px #0004;padding:32px;color:var(--ink)}dialog::backdrop{background:#10213999}dialog h2{margin-bottom:12px;overflow-wrap:anywhere}dialog p{font-size:14px}dialog .formula{font-family:Consolas,"Microsoft YaHei",monospace;background:#f2f5fa;padding:20px;overflow-wrap:anywhere}.close{float:right;border:0;background:#edf1f8;border-radius:5px;padding:6px 12px}.lab-inputs{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.lab-inputs label{font-size:12px;color:var(--muted)}.lab-inputs input{display:block;width:100%;margin-top:5px}.result{background:#101d30;color:#e0e9f5;padding:24px;border-radius:9px;margin-top:24px;font-family:Consolas,"Microsoft YaHei",monospace;white-space:pre-wrap}.result b{color:#90b3ff}.barrow{display:grid;grid-template-columns:155px 1fr 35px;align-items:center;gap:15px;font-size:12px;margin:13px 0}.bar{height:7px;background:#edf1f7;border-radius:10px;overflow:hidden}.bar i{display:block;background:var(--accent);height:100%;border-radius:10px}footer{color:var(--muted);font-size:11px;border-top:1px solid var(--line);margin-top:35px;padding-top:18px}.count{font-size:12px;color:var(--muted)}code{font-family:Consolas,monospace}button:disabled{opacity:.4;cursor:default}@media(max-width:1050px){main{padding:0 25px 40px;margin-left:205px}aside{width:205px;padding:25px 15px}h1{font-size:34px}.hero{gap:20px}.hero .diagram{padding:15px}}@media(max-width:760px){aside{position:static;width:100%;padding:18px}.brand small{margin:0 0 14px}.nav{display:flex;overflow:auto;gap:3px}.nav button{white-space:nowrap;padding:8px 12px;margin:0}.side-foot{display:none}main{margin:0;padding:0 18px 35px}.hero{grid-template-columns:1fr;padding:28px 0 18px}.hero .diagram{display:none}h1{font-size:33px}.stats{gap:8px}.stat{padding:14px 12px}.stat b{font-size:25px}.grid{grid-template-columns:1fr}.lab-inputs{grid-template-columns:1fr 1fr}.panel{padding:19px}.barrow{grid-template-columns:125px 1fr 25px}header{font-size:10px}}





/* Bilingual layout */
.language{display:flex;gap:6px;flex-shrink:0}.language button{border:1px solid var(--line);background:white;color:var(--ink);border-radius:5px;padding:5px 10px}.language button[aria-pressed=true]{background:var(--accent);color:white}.panel,.stat,header>span{min-width:0;overflow-wrap:anywhere}h1{font-size:38px;overflow-wrap:anywhere}.result{overflow-wrap:anywhere;white-space:pre-wrap}dialog h3{margin-top:16px}@media(max-width:760px){h1{font-size:30px}.stats{grid-template-columns:repeat(3,minmax(0,1fr))}.stat b{font-size:23px}.stat span{font-size:11px}.filters select{max-width:100%}.nav button{font-size:13px}header{align-items:flex-start}}