:root{--bg: #f4f6fa;--panel: #fff;--panel-soft: #f8fafc;--line: #d9e1ee;--line-strong: #c8d3e4;--text: #20242c;--muted: #667085;--primary: #2563d8;--primary-strong: #174ea6;--primary-soft: #eef4ff;--danger: #b42318;--danger-soft: #fff0ee;--success: #117642;--success-soft: #e8f7ef;color:#20242c;background:var(--bg);font-family:Inter,PingFang SC,Microsoft YaHei,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,select,textarea{font:inherit}button{cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}button:disabled{cursor:not-allowed;opacity:.55}.center,.auth-page{min-height:100vh;display:grid;place-items:center}.auth-card{width:min(420px,calc(100vw - 32px));background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:24px;display:grid;gap:14px;box-shadow:0 18px 40px 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