:root{--c:#0e6fd8;--bg:#f4f7fb;--card:#fff;--txt:#1d2433;--muted:#6b7585;--bd:#dde3ec;--warn:#d33}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.6}
header{text-align:center;padding:28px 16px 8px}
h1{margin:0;font-size:28px}
.sub{margin:6px 0 0;color:var(--muted)}
main{max-width:900px;margin:0 auto;padding:12px 16px 40px}
.card{background:var(--card);border:1px solid var(--bd);border-radius:14px;padding:18px;margin-bottom:18px;box-shadow:0 2px 8px rgba(0,0,0,.03)}
h2{font-size:18px;margin:0 0 12px}
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tab{flex:1;padding:10px;border:1px solid var(--bd);background:#f7f9fc;border-radius:10px;font-size:15px;cursor:pointer}
.tab.on{background:var(--c);color:#fff;border-color:var(--c)}
.io{display:flex;flex-direction:column;gap:8px}
.box label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
textarea,#q,#tblFilter{width:100%;font:inherit;font-size:18px;padding:10px 12px;border:1px solid var(--bd);border-radius:10px;resize:vertical;outline:none}
textarea:focus,#q:focus{border-color:var(--c)}
.out{min-height:92px;padding:10px 12px;border:1px dashed var(--bd);border-radius:10px;background:#fafbfd;font-size:18px;word-break:break-all;white-space:pre-wrap;font-family:Consolas,"PingFang SC",monospace}
.arrow{text-align:center;color:var(--muted);font-size:20px}
.tools{display:flex;align-items:center;gap:12px;margin-top:8px;flex-wrap:wrap}
button{font:inherit;padding:7px 16px;border-radius:8px;border:1px solid var(--c);background:var(--c);color:#fff;cursor:pointer}
button.ghost{background:#fff;color:var(--c)}
.chk{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:4px}
.muted{color:var(--muted);font-size:13px}
.warn{color:var(--warn);font-size:13px}
.detail{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.detail span{display:inline-flex;flex-direction:column;align-items:center;padding:4px 8px;border:1px solid var(--bd);border-radius:8px;background:#fafbfd;font-size:13px;min-width:44px}
.detail span b{font-size:20px;font-weight:500}
.detail span.bad{border-color:var(--warn);color:var(--warn)}
.detail span.raw{opacity:.55}
.row{display:flex;gap:12px;align-items:center}
#q{max-width:220px}
.qres{font-size:20px}
.rules li{margin:6px 0}
.rules ul{margin:4px 0}
code{background:#eef3fa;padding:1px 6px;border-radius:5px;font-family:Consolas,monospace}
details{margin-top:14px}
summary{cursor:pointer;color:var(--c)}
.tblTools{margin:10px 0}
.tbl{display:grid;grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:4px;max-height:420px;overflow:auto;font-size:14px}
.tbl div{text-align:center;padding:3px 0;border:1px solid var(--bd);border-radius:6px}
.tbl div b{display:block;font-size:18px;font-weight:500}
footer{text-align:center;padding:10px 16px 30px}
@media(min-width:760px){.io{flex-direction:row;align-items:stretch}.box{flex:1}.arrow{align-self:center;transform:rotate(-90deg)}}