:root{--bg:#f4f6f9;--panel:#fff;--panel-subtle:#f8f9fb;--line:#e4e8ef;--line-strong:#d6dce6;--text:#172033;--muted:#7b8495;--blue:#1769e0;--blue-hover:#0f57bd;--blue-soft:#eaf2ff;--green:#12805c;--green-soft:#e8f7f1;--amber:#b86413;--amber-soft:#fff3e5;--red:#c93f47;--red-soft:#ffedef;--shadow:0 8px 28px #18263e12}*{box-sizing:border-box}html,body{background:var(--bg);min-height:100%;color:var(--text);letter-spacing:0;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.login-shell{background:#fff;grid-template-columns:minmax(380px,44%) 1fr;min-height:100vh;display:grid}.login-brand{color:#fff;background:#111b2d;flex-direction:column;justify-content:space-between;padding:64px 8vw;display:flex;position:relative;overflow:hidden}.login-brand:after{content:"";border:1px solid #ffffff1f;height:72%;position:absolute;inset:auto 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