* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: radial-gradient(ellipse at 50% 20%, #2a2118 0%, #17110c 55%, #0c0906 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Consolas", "Courier New", monospace;
  color: #8a8278;
  padding: 24px 12px;
  overflow-x: hidden;
}

.desk { text-align: center; }

.cartridge-title {
  font-size: 15px;
  letter-spacing: 4px;
  color: #6f675e;
  margin-bottom: 12px;
  text-shadow: 0 1px 0 rgba(255,255,255,0.05);
}
.cartridge-title span { color: #c9a44a; }

/* ---------- NDS 主机 ---------- */
#nds {
  width: 596px;
  margin: 0 auto;
  background: linear-gradient(180deg, #d5d9de 0%, #b6bac0 42%, #989ca2 68%, #8d9197 100%);
  border-radius: 30px 30px 64px 64px;
  padding: 24px 22px 18px;
  box-shadow:
    0 24px 54px rgba(0,0,0,0.62),
    0 2px 0 rgba(255,255,255,0.55) inset,
    0 -3px 0 rgba(0,0,0,0.22) inset;
  position: relative;
}

.screen-wrap {
  width: 512px;
  margin: 0 auto;
  background: #16181d;
  border: 7px solid #25272e;
  border-radius: 12px;
  box-shadow:
    0 0 0 2px rgba(0,0,0,0.7),
    inset 0 0 22px rgba(0,0,0,0.85);
  position: relative;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: pointer;
}

.gloss {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(255,255,255,0.13) 0%, rgba(255,255,255,0.03) 32%, rgba(255,255,255,0) 46%);
  border-radius: 5px;
}

#middle {
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 44px;
}

#brand {
  font-size: 12px;
  letter-spacing: 2px;
  color: #4e525a;
  text-shadow: 0 1px 0 rgba(255,255,255,0.35);
}

#mic {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #3a3e46;
  box-shadow: 0 0 0 2px rgba(0,0,0,0.22);
}

#led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #3fae5a;
  box-shadow: 0 0 8px 1px rgba(63,174,90,0.85);
  animation: led-pulse 2.4s ease-in-out infinite;
}
@keyframes led-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* ---------- 按键区 ---------- */
#controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding: 0 6px;
}

.dpad {
  width: 108px;
  height: 108px;
  position: relative;
}
.dpad-btn {
  position: absolute;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 5px;
  background: linear-gradient(180deg, #33363d, #1d2026);
  color: #7c848f;
  font-size: 13px;
  line-height: 1;
  box-shadow: 0 3px 0 #101217, 0 5px 8px rgba(0,0,0,0.35);
  cursor: pointer;
  user-select: none;
}
.dpad-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 #101217; }
.dpad-btn.up   { left: 37px;  top: 0; }
.dpad-btn.left { left: 0;     top: 37px; }
.dpad-btn.right{ left: 74px;  top: 37px; }
.dpad-btn.down { left: 37px;  top: 74px; }

.abxy {
  width: 118px;
  height: 108px;
  position: relative;
}
.ab {
  position: absolute;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  font-weight: 700;
  font-size: 15px;
  font-family: inherit;
  color: rgba(255,255,255,0.95);
  box-shadow: 0 4px 0 rgba(0,0,0,0.38), 0 6px 10px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.4);
  cursor: pointer;
  user-select: none;
}
.ab:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0,0,0,0.38); }
.ab-a { right: 0;   top: 8px;  background: radial-gradient(circle at 35% 30%, #5fc96f, #2c8f4a); }
.ab-b { right: 0;   top: 62px; background: radial-gradient(circle at 35% 30%, #f08a5a, #c04a2c); }
.ab-x { left: 0;    top: 62px; background: radial-gradient(circle at 35% 30%, #7aa8e8, #3a68b8); }
.ab-y { left: 0;    top: 8px;  background: radial-gradient(circle at 35% 30%, #f0d05a, #c09a2c); }

.start-select {
  display: flex;
  gap: 8px;
  flex-direction: column;
  align-items: center;
}
.start-select button {
  width: 88px;
  height: 22px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(180deg, #4a4e56, #2e3138);
  color: #b6bdc8;
  font-size: 10px;
  font-family: inherit;
  letter-spacing: 1px;
  box-shadow: 0 3px 0 #171a1f, 0 5px 8px rgba(0,0,0,0.3);
  cursor: pointer;
  user-select: none;
}
.start-select button:active { transform: translateY(2px); box-shadow: 0 1px 0 #171a1f; }

.speaker {
  position: absolute;
  right: 20px;
  bottom: 36px;
  display: flex;
  gap: 5px;
}
.speaker span {
  width: 4px;
  height: 26px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(0,0,0,0.28), rgba(255,255,255,0.16));
}

.foot-note {
  margin-top: 14px;
  font-size: 11px;
  letter-spacing: 1px;
  color: #5c554d;
}

@media (max-width: 640px) {
  body { padding: 10px; }
  #nds { transform: scale(0.72); transform-origin: top center; margin-bottom: -190px; }
}