:root{--ink:#18324B;--ink-deep:#0F2337;--paper:#F5F4EF;--card:#FFFFFF;--seal:#C6402B;--jade:#2F7D5B;--gold:#C99A3C;--azure:#2E6DA4;--line:#E4E2D8;--text:#25313B;--text-2:#7A828A;--radius:14px;--font-display:"Songti SC","STSong","NSimSun","SimSun",serif;--font-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--font-num:"SF Mono","Cascadia Mono","Roboto Mono",Consolas,monospace}*{margin:0;padding:0;box-sizing:border-box}html,body{overflow-x:hidden}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-body);background:var(--paper);color:var(--text);min-height:100vh}button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}input{font-family:inherit}:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}.shell{display:flex;min-height:100vh}.sidebar{display:none}.main{flex:1;max-width:520px;margin:0 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rgba(228,226,216,.8);box-shadow:0 -8px 24px #18324b14;display:flex;justify-content:space-around;align-items:center;padding:6px 8px calc(6px + env(safe-area-inset-bottom));z-index:20}.tabbar a,.tabbar button{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;letter-spacing:.5px;color:var(--text-2);width:60px;padding:4px 0;text-decoration:none;-webkit-tap-highlight-color:transparent}.tabbar a .glyph,.tabbar button .glyph{font-family:var(--font-display);font-size:16px;width:34px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:9px;transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .12s ease}.tabbar .nav-icon{width:22px;height:22px}.tabbar a:active .glyph{transform:scale(.88)}.tabbar a.on,.tabbar button.on{color:var(--ink);font-weight:600}.tabbar a.on .glyph{background:var(--ink);color:#edeae0;box-shadow:0 3px 9px #18324b4d}.tabbar 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