:root{font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:#18374a;background:#f6f4ed;font-synthesis:none;--paper:#f6f4ed;--ink:#18374a;--muted:#68808c;--blue:#064e8a;--surface:#fffdf8;--line:#d8e0df;--soft:#e9eee9;--gold:#c48c35;color-scheme:light}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit}a{color:var(--blue)}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #d69b3d;outline-offset:3px}button{touch-action:manipulation}input,textarea,select{width:100%;border:1px solid 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small{font-size:8px}.chain-note{font-size:9px}.howto-wrap{display:block}.howto-label{font-size:10px}.howto{margin-top:10px}.howto-text{font-size:10px}.side-actions{grid-template-columns:repeat(4,1fr);gap:6px}.side-action{display:flex;flex-direction:column;justify-content:center;gap:5px;font-size:10px;padding:10px 3px}.side-action>span:first-child{font-size:16px}.site-footer{flex-direction:column;align-items:flex-start;gap:7px;font-size:9px;padding:14px 0 19px}.footer-links{gap:16px}.footer-links button{font-size:9px}.mobile-nav{display:flex;gap:20px;justify-content:center;padding-top:17px}.mobile-nav button{font-size:11px;color:var(--muted)}.dialog-header,.dialog-body{padding:20px}.dialog-header h2{font-size:21px}.tabs{gap:17px}.tabs button{font-size:12px}.board-status{font-size:9px;margin-top:10px;min-height:26px}.form-grid{gap:10px}.board-overlay 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