  Ochiai has previously proved that the Beilinson-Kato Euler systems for
modular forms interpolate in nearly-ordinary $p$-adic families (Howard has
obtained a similar result for Heegner points), based on which he was able to
prove a half of the two-variable main conjectures. The principal goal of this
article is to generalize Ochiai's work in the level of Kolyvagin systems so as
to prove that Kolyvagin systems associated to Beilinson-Kato elements
interpolate in the full deformation space (in particular, beyond the
nearly-ordinary locus) and use what we call universal Kolyvagin systems to
attempt a main conjecture over the eigencurve. Along the way, we utilize these
objects in order to define a quasicoherent sheaf on the eigencurve that behaves
like a $p$-adic $L$-function (in a certain sense of the word, in
$3$-variables).
