:root{--ink:#182a27;--muted:#75817a;--line:#e4e9e2;--green:#34755b;--green-dark:#245840;--paper:#f6f7f2;--white:#fff;--red:#b94343;--blue:#347bc5}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}[hidden]{display:none!important}button,input,textarea,select{font:inherit}button,a,input,textarea,select{outline-offset:4px}button{cursor:pointer;border:1px solid var(--line);border-radius:8px;background:white;padding:9px 16px;color:var(--ink);transition:background 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11px;gap:5px}nav em{display:none}main{padding:25px 18px}.editor-grid{grid-template-columns:1fr}.preview-panel{position:static}.login-shell{grid-template-columns:1fr}.login-intro{min-height:280px;padding:35px}.login-intro .mark{margin-bottom:20px}.login-intro h1{font-size:28px;margin:10px 0}.login-intro p,.intro-footer{display:none}.login-card{margin:35px auto}.panel{padding:18px}header{align-items:flex-start}.bot-link{font-size:10px}footer span{display:none}}