/* V2.5.0: four-card editorial grid; original design/theme unchanged. */
.architecture-grid.architecture-four { grid-template-columns: repeat(4,minmax(0,1fr)); }
.manual-content .architecture-grid.architecture-four { grid-template-columns: repeat(2,minmax(0,1fr)); }
.hero .hero-copy > p:not(.hero-lead) { color: #eaf3fc; max-width: 740px; }
@media (max-width: 1050px) { .architecture-grid.architecture-four { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 760px) { .architecture-grid.architecture-four,.manual-content .architecture-grid.architecture-four { grid-template-columns: 1fr; } }


/* V2.5.1: additional public architecture content, preserving the 2.4.3 visual language. */
.itdrf-layer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0 0}
.itdrf-layer{display:grid;grid-template-columns:50px minmax(0,1fr);gap:16px;padding:25px 24px;border:1px solid #cfdae3;border-radius:14px;background:#fff;box-shadow:0 8px 22px rgba(0,32,80,.045);min-width:0}
.itdrf-layer-id{display:grid;place-items:center;width:44px;height:44px;border-radius:11px;background:#002050;color:#fff;font-weight:850;font-size:15px;letter-spacing:.03em}
.itdrf-layer h3{font-size:20px;line-height:1.2;margin:1px 0 9px;color:#002050}
.itdrf-layer p{font-size:14px;line-height:1.68;margin:0;color:#43566c}
.itdrf-note{border-left:4px solid #114a88;background:#f3f8fc;border-radius:0 12px 12px 0;padding:22px 26px;margin-top:25px;color:#193a56}
.itdrf-note strong{display:block;font-size:17px;color:#002050}
.itdrf-note p{margin:9px 0 0;font-size:15px;line-height:1.68}
.itdrf-note a{color:#114a88}
.itdrf-inline-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}
.itdrf-layer-grid + .itdrf-inline-actions{margin-top:28px}
@media(max-width:760px){.itdrf-layer-grid{grid-template-columns:1fr}.itdrf-layer{grid-template-columns:42px minmax(0,1fr);gap:11px;padding:19px 16px}.itdrf-layer-id{width:38px;height:38px}.itdrf-layer h3{font-size:18px}.itdrf-inline-actions{flex-direction:column}.itdrf-inline-actions .btn{max-width:100%}.itdrf-note{padding:18px}}