/* F-009: Shared bilingual Pons V2 layout and brand typography, Chinese fonts, and accessible controls. */
:root{color-scheme:light;--bg:#fbfaf8;--panel:#fff;--ink:#16181d;--muted:#646b78;--line:#e6e4df;--block-line:#d5d2ca;--accent:#1a56db;--good:#0f7b4f;--warn:#916000;--bad:#b02020;--warn-bg:#fdf3e0;--mono:"SF Mono",ui-monospace,Menlo,Consolas,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",monospace}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;--bg:#131417;--panel:#1b1d22;--ink:#e8e8ea;--muted:#a2a7b1;--line:#2c2f36;--block-line:#444952;--accent:#82acff;--good:#4ade80;--warn:#fbbf24;--bad:#f87171;--warn-bg:#2b2210}}
:root[data-theme="dark"]{color-scheme:dark;--bg:#131417;--panel:#1b1d22;--ink:#e8e8ea;--muted:#a2a7b1;--line:#2c2f36;--block-line:#444952;--accent:#82acff;--good:#4ade80;--warn:#fbbf24;--bad:#f87171;--warn-bg:#2b2210}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;-webkit-font-smoothing:antialiased}.wrap{max-width:1100px;margin:auto;padding:28px 20px 64px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}header{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:15px}h1,.site-title{font-size:20px;margin:0;font-weight:650;letter-spacing:-.02em}h1 a,.site-title a{color:inherit}h1 span,.site-title span{color:var(--muted);font-weight:400}.controls{display:flex;gap:8px;flex-wrap:wrap}.ctl{border:1px solid var(--block-line);border-radius:6px;background:var(--panel);color:var(--muted);padding:7px 10px;font:12px/1.4 var(--mono);cursor:pointer;min-height:34px}.ctl:hover{color:var(--ink);border-color:var(--muted)}.ctl:disabled{opacity:.5;cursor:default}:focus-visible{outline:2px solid var(--accent);outline-offset:3px}nav{display:flex;gap:8px 20px;flex-wrap:wrap;font-size:13px;padding:15px 0}nav a[aria-current="page"]{color:var(--ink);font-weight:650;border-bottom:2px solid var(--accent)}.intro{max-width:82ch;margin:8px 0 16px}.note{font-size:12px;color:var(--muted);margin:10px 0;line-height:1.65}.notice{border-left:3px solid var(--accent);padding:10px 14px;background:var(--panel);font-size:12px;color:var(--muted);margin:16px 0 24px}.notice p{margin:0}.notice p+p{margin-top:5px}.eyebrow{text-transform:uppercase;font:11px var(--mono);letter-spacing:.06em;color:var(--muted)}.card{background:var(--panel);border:1px solid var(--block-line);border-radius:10px;padding:20px 22px;margin:20px 0;min-width:0}.card h2{font-size:16px;margin:0;font-weight:650}.card h3{font-size:14px;margin:20px 0 10px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px 16px;flex-wrap:wrap;margin-bottom:14px}.section-head .note{margin:0}.fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px 18px;margin:16px 0}.fields.two{grid-template-columns:repeat(2,minmax(0,1fr))}.field{min-width:0}label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}input,select{width:100%;min-width:0;border:1px solid var(--block-line);border-radius:6px;padding:10px 11px;background:var(--bg);color:var(--ink);font:14px/1.4 var(--mono);min-height:42px}select{font-family:inherit}input[aria-invalid="true"]{border-color:var(--bad)}.field small{display:block;font-size:11px;color:var(--muted);margin-top:4px;line-height:1.5}.check{display:flex;align-items:center;gap:9px;font-size:13px}.check input{width:17px;min-height:17px;flex:none}.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.split>.card{margin:0}.split+.card{margin-top:20px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:7px;overflow:hidden;margin-top:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.kpi{background:var(--panel);padding:13px 14px;min-width:0}.k{font-size:11px;color:var(--muted);line-height:1.5}.v{font:550 18px/1.5 var(--mono);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;letter-spacing:-.03em;margin:3px 0}.m{font-size:11px;color:var(--muted);line-height:1.5}.primary .v{color:var(--accent);font-size:23px}.error{font-size:12px;color:var(--bad);border-left:2px solid var(--bad);padding-left:10px;margin:12px 0}.result-note{font-size:12px;color:var(--muted);margin:12px 0 0}.warn{color:var(--warn)}.good{color:var(--good)}.bad{color:var(--bad)}.table-wrap{max-width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:7px;margin-top:14px}table{width:100%;border-collapse:collapse;font:12px/1.6 var(--mono);text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}th,td{padding:11px 13px;border-bottom:1px solid var(--line)}th{font:500 11px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--muted)}th:first-child,td:first-child{text-align:left}tbody th{font-family:var(--mono);color:var(--ink)}tbody tr:last-child>*{border-bottom:0}caption{text-align:left;padding:10px 13px;font:12px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--muted)}details{margin-top:15px}summary{cursor:pointer;font-size:13px;color:var(--accent)}.section-rule{border:0;border-top:1px solid var(--line);margin:20px 0}.inline-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.inline-actions .note{margin:0}.raw-value{font-size:14px}.foot-links{display:flex;gap:12px;flex-wrap:wrap}footer{margin-top:35px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer p{margin:8px 0}code{font-family:var(--mono);font-size:.92em;overflow-wrap:anywhere}.prose{max-width:86ch}.prose h2{margin-top:26px}.prose h3{margin-top:22px}.prose p,.prose li{font-size:14px}.prose pre{overflow:auto;padding:14px;background:var(--bg);border:1px solid var(--line);border-radius:6px}.skip-link{position:absolute;top:-50px;left:10px;background:var(--panel);padding:8px;z-index:10}.skip-link:focus{top:8px}.status{min-height:20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:750px){.split{grid-template-columns:1fr}.fields{grid-template-columns:repeat(2,minmax(0,1fr))}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.wrap{padding:20px 16px 48px}.card{padding:18px}.section-head{gap:6px}}
@media(max-width:420px){.wrap{padding:18px 12px 40px}.card{padding:15px 12px}.fields,.fields.two{grid-template-columns:1fr;gap:12px}.kpi{padding:11px 9px}.v{font-size:15px}.primary .v{font-size:18px}h1,.site-title{font-size:18px}nav{gap:9px 15px}.grid.two{grid-template-columns:1fr}.split .grid{grid-template-columns:1fr}}

:root[lang="zh-CN"] .eyebrow{letter-spacing:0;line-height:1.6}:root[lang="zh-CN"] .ctl{font-family:inherit}:root[lang="zh-CN"] .method-body{max-width:100%}

/* F-009: Derived values remain selectable, focusable and visibly distinct. */
input[readonly]{border-style:dashed;color:var(--accent);background:var(--panel)}