body[data-page="security"] .platform-boundaries {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 28px;
  border: 1px solid #6aaeff;
  border-radius: 14px;
  background: linear-gradient(135deg, #dceeff, #edfaff 55%, #fff);
  box-shadow: 0 14px 34px rgba(19, 99, 184, .14);
}
.platform-boundaries .platform-visual { display: grid; grid-template-columns: 1fr 26px 1fr; gap: 8px; align-items: center; }
.platform-boundaries .platform-object { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 5px; }
.platform-boundaries .platform-symbol { display: grid; place-items: center; width: 88px; height: 88px; margin-bottom: 8px; border: 1px solid #0872ec; border-radius: 20px; background: linear-gradient(145deg, #258fff, #0756d9); box-shadow: 0 9px 20px rgba(15, 109, 225, .28); }
.platform-boundaries .platform-symbol svg { width: 54px; height: 54px; fill: none; stroke: #fff; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.platform-boundaries .platform-object:last-child .platform-symbol { border-color: #0395b3; background: linear-gradient(145deg, #06c9dc, #007dba); box-shadow: 0 9px 20px rgba(0, 157, 189, .25); }
.platform-boundaries .platform-object:last-child svg { stroke: #fff; }
.platform-boundaries .platform-object b { color: #123354; font-size: .87rem; line-height: 1.3; }
.platform-boundaries .platform-object small { color: #375676; font-size: .7rem; }
.platform-boundaries .platform-plus { color: #0873dc; font-size: 2rem; font-weight: 600; text-align: center; padding-bottom: 40px; }
.platform-boundaries .platform-practices { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; padding-bottom: 20px; border-bottom: 1px solid #a5cbef; }
.platform-boundaries .platform-practices span { padding: 4px 10px; border: 1px solid #a4cfff; border-radius: 6px; background: #d6eaff; color: #124f94; font-size: .7rem; font-weight: 600; }
.platform-boundaries h3 { font-size: 1rem; line-height: 1.4; color: #123d6b; margin-bottom: 10px; }
@media (max-width: 500px) {
  body[data-page="security"] .platform-boundaries { padding: 22px 16px; }
  .platform-boundaries .platform-visual { gap: 4px; grid-template-columns: 1fr 20px 1fr; }
  .platform-boundaries .platform-object b { font-size: .78rem; }
}