:root{--ink:#18212a;--muted:#68737d;--line:#dfe4e7;--panel:#fff;--bg:#f3f5f6;--green:#116149;--green-soft:#e6f1ed;--nav:#20282e;--danger:#a43d3d}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:Arial,Microsoft YaHei,sans-serif;letter-spacing:0}button,input,textarea{font:inherit;letter-spacing:0}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.loading{place-items:center;color:var(--muted)}.loading,.login-page{min-height:100vh;display:grid}.login-page{place-items:center;padding:24px;background:linear-gradient(135deg,#eef2f1 0 52%,#dfe8e4 52%)}.login-panel{width:min(420px,100%);background:#fff;border:1px solid #d8dfdc;border-radius:8px;box-shadow:0 18px 50px rgba(28,47,39,.12);padding:34px}.login-brand{display:flex;gap:13px;align-items:center;margin-bottom:32px;color:var(--green)}.login-brand span,.login-brand strong{display:block}.login-brand strong{font-size:20px}.login-brand 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