/* Platform cards: text and layout remain native HTML, only brand avatars are images. */
.platform-wall { margin-top: 28px; }
.platform-wall-head { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 0 0 20px; }
.platform-wall-head strong { color: var(--text); font-size: 16px; }
.platform-wall-head span { color: var(--muted); font-size: 12px; }
.platform-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; padding: 0; margin: 0; list-style: none; }
.platform-card { min-width: 0; padding: 18px 18px 24px; border: 1px solid var(--line); border-radius: 12px; background: linear-gradient(145deg, rgba(25, 43, 50, .82), rgba(10, 20, 27, .96)); text-align: center; transition: border-color 180ms ease, transform 180ms ease; }
.platform-card:hover { border-color: rgba(53, 230, 155, .5); transform: translateY(-3px); }
.platform-card-index { display: block; color: var(--dim); font: 11px/1.5 Consolas, monospace; text-align: left; letter-spacing: .08em; margin-bottom: 16px; }
.platform-avatar { width: 128px; height: 128px; margin: 0 auto 20px; padding: 9px; display: flex; align-items: center; justify-content: center; border-radius: 22px; background: #fff; overflow: hidden; box-shadow: 0 8px 24px rgba(0, 0, 0, .16); }
.platform-avatar img { display: block; width: 100%; height: 100%; object-fit: contain; }
.platform-card h3 { margin: 0; color: var(--text); font-size: 18px; line-height: 1.5; font-weight: 600; overflow-wrap: anywhere; }
.platform-wall-note { display: flex; align-items: center; gap: 9px; margin: 20px 0 0; color: var(--muted); font-size: 12px; }
.platform-wall-note::before { content: ''; width: 5px; height: 5px; background: var(--green); border-radius: 50%; }
.platform-case-page { padding-bottom: 32px; }
html[data-theme="light"] .platform-card { background: #fff; border-color: #dce5e3; }
html[data-theme="light"] .platform-avatar { background: #f7f9fb; box-shadow: 0 5px 18px rgba(20, 40, 50, .08); }
@media (max-width: 1100px) {
  .platform-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 780px) {
  .platform-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .platform-card { padding: 16px 12px 20px; }
}
@media (max-width: 520px) {
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .platform-wall-head { align-items: start; flex-direction: column; gap: 6px; }
  .platform-avatar { width: 112px; height: 112px; margin-bottom: 16px; border-radius: 18px; padding: 7px; }
  .platform-card h3 { font-size: 16px; }
  .platform-card-index { margin-bottom: 12px; font-size: 10px; }
}
@media (max-width: 360px) {
  .platform-avatar { width: 96px; height: 96px; }
  .platform-card { padding-inline: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .platform-card { transition: none; }
}