.so1-feature {
  margin-top: 70px;
  padding-top: 55px;
  border-top: 1px solid var(--line);
}
.so1-feature h3 {
  font-size: clamp(36px, 4.5vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.so1-stage {
  position: relative;
  aspect-ratio: 2;
  overflow: hidden;
  background: radial-gradient(
    ellipse at 50% 50%,
    #26354b 0,
    #111b29 45%,
    #090e16 90%
  );
  border: 1px solid var(--line);
}
#so1-canvas,
.so1-fallback {
  position: absolute;
  width: 100%;
  height: 100%;
  inset: 0;
  object-fit: contain;
}
#so1-canvas {
  opacity: 0;
}
.is-animated #so1-canvas {
  opacity: 1;
}
.is-animated .so1-fallback {
  opacity: 0;
}
.so1-stage-top,
.so1-stage-bottom {
  position: absolute;
  left: 24px;
  right: 24px;
  display: flex;
  justify-content: space-between;
  gap: 15px;
  font-size: 10px;
  letter-spacing: 0.12em;
  pointer-events: none;
}
.so1-stage-top {
  top: 24px;
  color: #b4bed0;
}
.so1-stage-bottom {
  bottom: 24px;
  color: var(--accent);
}
.so1-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.so1-toolbar button {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  font: inherit;
  font-size: 12px;
  padding: 14px 18px;
  cursor: pointer;
}
.so1-toolbar button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
.so1-toolbar button:hover:not(:disabled) {
  border-color: var(--accent);
}
.so1-toolbar button:disabled {
  opacity: 0.5;
  cursor: default;
}
.breadcrumb-visual {
  display: flex;
  align-items: center;
  gap: clamp(20px, 5vw, 75px);
  margin: 55px 0;
  position: relative;
  max-width: 850px;
}
.breadcrumb-visual:before {
  content: "";
  height: 1px;
  position: absolute;
  left: 0;
  right: 25px;
  background: linear-gradient(90deg, transparent, #c3b1ff88);
}
.breadcrumb-visual span {
  width: 12px;
  height: 12px;
  flex: none;
  border: 1px solid #c3b1ff;
  border-radius: 50%;
  background: #0b1014;
  position: relative;
}
.breadcrumb-visual span:nth-child(1) {
  opacity: 0.2;
}
.breadcrumb-visual span:nth-child(2) {
  opacity: 0.4;
}
.breadcrumb-visual span:nth-child(3) {
  opacity: 0.6;
}
.breadcrumb-visual span:nth-child(4) {
  opacity: 0.8;
}
.breadcrumb-visual span:nth-child(5) {
  background: #c3b1ff;
  box-shadow: 0 0 24px #c3b1ff55;
}
.breadcrumb-visual i {
  font-style: normal;
  font-size: 44px;
  color: var(--accent);
  position: relative;
}
.breadcrumb-line {
  font-size: clamp(22px, 3vw, 36px);
  line-height: 1.4;
  color: var(--muted);
  max-width: 900px;
}
.breadcrumb-line strong {
  font-weight: 400;
  color: var(--ink);
}
@media (max-width: 760px) {
  .so1-stage {
    aspect-ratio: 1.4;
  }
  .so1-stage-top,
  .so1-stage-bottom {
    left: 14px;
    right: 14px;
    font-size: 8px;
  }
  .so1-stage-top {
    top: 15px;
  }
  .so1-stage-bottom {
    bottom: 15px;
  }
  .so1-stage-top span:last-child,
  .so1-stage-bottom span:last-child {
    display: none;
  }
  .so1-toolbar button {
    padding: 12px;
    font-size: 11px;
  }
}