:root{--canvas:#f8f8f7;--surface:#fff;--text:#232522;--muted:#6b6e69;--border:#dedfdb;--accent:#35634d;--selected:#eaf0eb;--warning:#b8541f;--pro:#4c5fd5;--v56:#2e9e8f;--side:230px;--r:6px}
:root[data-theme=dark]{--canvas:#101110;--surface:#161715;--text:#e4e6e1;--muted:#a2a79f;--border:#30332e;--accent:#98c5aa;--selected:#1d3025;--warning:#e9a070;--pro:#8b99f0;--v56:#5bc2b3}
*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--text);font:15px/1.6 "PingFang TC","Noto Sans TC",sans-serif}
button{font:inherit;color:inherit;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:6px 10px;cursor:pointer}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
#sidebar{position:fixed;inset:0 auto 0 0;width:var(--side);display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--canvas);z-index:5}
#sidebar header{display:flex;align-items:center;justify-content:space-between;padding:20px 16px 8px}h1{font-size:19px;margin:0;font-weight:600}h2{font-size:15px;font-weight:600;margin:16px 0 6px}
.side-content{overflow-y:auto;min-height:0;padding:0 12px 16px}.muted{color:var(--muted);font-size:13px}
.nav{display:block;text-align:left;width:100%;border:0;background:none;padding:6px 10px;margin-bottom:2px}.nav.active,.round.active{background:var(--selected);color:var(--accent)}
.field{margin-top:14px}#rounds{display:grid;grid-template-columns:repeat(5,1fr);gap:3px}.round{min-height:34px;padding:4px;border-color:transparent;background:transparent;position:relative}.round.fb::after{content:"●";position:absolute;right:3px;top:1px;color:var(--warning);font-size:9px}
#sidebar footer{padding:12px 16px;border-top:1px solid var(--border)}#theme{border:0;background:none;font-size:20px;padding:0 6px}
main{margin-left:var(--side);padding:0 24px 40px;min-width:0}.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;position:sticky;top:0;z-index:3;background:var(--canvas);border-bottom:1px solid var(--border)}#roundTitle{margin:0 auto 0 0;font-size:17px}
.turn{margin-top:20px}.turn>h3{font-size:14px;color:var(--muted);margin:0 0 8px;font-weight:500}
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.arm{min-width:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:16px 20px}
.arm header{display:flex;align-items:center;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--border);padding-bottom:8px;margin-bottom:12px}
.arm header b{font-size:14px}.badge{font-size:12px;padding:2px 8px;border-radius:999px;border:1px solid currentColor}.badge.pro{color:var(--pro)}.badge.v56{color:var(--v56)}.badge.warn{color:var(--warning);border-color:var(--warning)}
.player{background:var(--selected);border-radius:var(--r);padding:10px 14px;margin-bottom:12px;white-space:pre-wrap;overflow-wrap:anywhere}.player small{display:block;color:var(--muted);margin-bottom:4px;font-size:12px}
.reply{font-size:16.5px;line-height:1.9;overflow-wrap:anywhere}.reply p{white-space:pre-wrap;margin:0 0 .9em}.reply .voice{color:var(--muted)}.reply .dialog{font-weight:500}
.meta{font-size:12px;color:var(--muted);margin-top:8px}.stat{font-size:12px;color:var(--muted)}
@media(max-width:1100px){.cols{grid-template-columns:minmax(0,1fr)}}@media(max-width:720px){main{margin-left:0;padding-inline:12px}#sidebar{position:static;width:auto;border-right:0;border-bottom:1px solid var(--border)}}