  Topological phases based on tight-binding models have been extensively
studied in recent decades. By mimicking the linear combination of atomic
orbitals in tight-binding models based on the evanescent couplings between
resonators in classical waves, numerous experimental demonstrations of
topological phases have been successfully conducted. However, in dielectric
photonic crystals, the Mie resonances' states decay too slowly as $1/r$ when
$r$ $\to$ $\infty$, leading to intrinsically different physical properties
between tight-binding models and dielectric photonic crystals. Here, we propose
a confined Mie resonance photonic crystal by embedding perfect electric
conductors in between dielectric rods, leading to a perfectly matched band
structure as the tight-binding models with nearest-neighbour couplings. As a
consequence, disentangled band structure spanned by higher atomic orbitals is
observed. Moreover, we also achieve a three-dimensional photonic crystal with a
complete photonic bandgap and third-order topology based on our design. Our
implementation provides a versatile platform for studying exotic higher-orbital
bands and achieving tight-binding-like 3D topological photonic crystals.
