/* 岩田 */
.c3-scene { --c3-hue: 330; position: relative; width: 100%; height: 680px; margin: 0 auto 3rem; display: flex; align-items: center; justify-content: center; perspective: 1100px; overflow: hidden; touch-action: pan-y; user-select: none; }
.c3-tilt { position: relative; width: 1px; height: 1px; transform-style: preserve-3d; }
.c3-stage { position: absolute; top: 0; left: 0; transform-style: preserve-3d; }
.c3-card { position: absolute; top: 50%; left: 50%; display: flex; align-items: center; justify-content: center; border-radius: 16px; background: linear-gradient(160deg, hsl(var(--c3-hue), 50%, 42%), hsl(var(--c3-hue), 56%, 18%)); border: 1px solid hsla(var(--c3-hue), 60%, 82%, 0.3); box-shadow: 0 18px 40px rgba(0,0,0,0.4); color: hsl(var(--c3-hue), 55%, 90%); font-size: 30px; font-weight: 700; overflow: hidden; }
.c3-card img, .c3-card video { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }
a.c3-card { text-decoration: none; -webkit-user-drag: none; }