:root{--ink:#121512;--muted:#6f756f;--paper:#f3f4ee;--card:#fff;--line:#dfe2da;--lime:#caff4f;--coral:#ff6c55;--green:#2d8a5f;--blue:#5478e8;--shadow:0 18px 50px #1f281e17}*{box-sizing:border-box}html{background:var(--paper)}body{color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}button,input,select{font:inherit}button{color:inherit}.app-shell{min-height:100svh;padding-bottom:92px;position:relative;overflow-x:hidden}.ambient{filter:blur(80px);pointer-events:none;opacity:.24;z-index:0;border-radius:50%;position:fixed}.ambient-one{background:#dfff8f;width:270px;height:270px;top:-130px;right:-90px}.ambient-two{background:#ffd2c9;width:220px;height:220px;top:440px;left:-160px}.topbar,.page,.bottom-nav{z-index:1;position:relative}.topbar{justify-content:space-between;align-items:center;max-width:680px;height:78px;margin:0 auto;padding:18px 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