/* 首页 · MasterGo 158:2187 · 1920×1080 舞台 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #000a29;
}

body {
  font-family: var(--font-sans);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  color: #ffffff;
}

a,
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

button {
  border: 0;
  background: none;
  padding: 0;
}

img {
  display: block;
  max-width: none;
}

.stage {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1920px;
  height: 1080px;
  overflow: hidden;
  background: #ffffff;
  transform-origin: center center;
}

.home-bg,
.home-bg__img,
.home-bg__dim {
  position: absolute;
  inset: 0;
}

.home-bg__img {
  width: 1920px;
  height: 1216.8px;
  object-fit: cover;
}

.home-bg__dim {
  background: linear-gradient(180deg, rgba(0, 20, 62, 0.8) 0%, rgba(19, 32, 58, 0.64) 100%);
}

.home-side {
  position: absolute;
  top: 0;
  width: 451.84px;
  height: 1080px;
  overflow: hidden;
  pointer-events: none;
}

.home-side--left {
  left: 0;
}

.home-side--right {
  left: 1468px;
}

.home-side img {
  width: 451.84px;
  height: 1080px;
  object-fit: cover;
}

.home-side--right img {
  transform: rotate(180deg);
}

.home-title-deco {
  position: absolute;
  left: 389px;
  top: 158px;
  width: 1110px;
  height: 273px;
  overflow: hidden;
  pointer-events: none;
}

.home-title-deco img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-title {
  position: absolute;
  left: 290px;
  top: 147px;
  width: 1340px;
  height: 120px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 120px;
  line-height: 120px;
  font-weight: 700;
  letter-spacing: 2px;
  text-align: center;
  color: #ffffff;
  white-space: nowrap;
}

.home-sub {
  position: absolute;
  left: 715px;
  top: 336px;
  width: 490px;
  height: 60px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 80px;
  line-height: 60px;
  font-weight: 700;
  letter-spacing: 2px;
  text-align: center;
  color: #ffffff;
  white-space: nowrap;
}

.home-modes {
  position: absolute;
  left: 197px;
  top: 473px;
  width: 1525px;
  height: 475px;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 68px;
}

.home-modes::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 54%;
  width: 1380px;
  height: 320px;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    ellipse 52% 46% at 50% 50%,
    rgba(0, 111, 229, 0.2) 0%,
    rgba(76, 182, 255, 0.08) 42%,
    transparent 72%
  );
  pointer-events: none;
  animation: home-modes-glow 8s ease-in-out infinite;
}

.home-modes::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8px;
  width: 1200px;
  height: 120px;
  transform: translateX(-50%);
  background: radial-gradient(
    ellipse 100% 100% at 50% 0%,
    rgba(76, 182, 255, 0.12) 0%,
    transparent 72%
  );
  pointer-events: none;
}

.mode {
  position: relative;
  width: 463px;
  height: 475px;
  flex-shrink: 0;
  text-decoration: none;
  background: url("../assets/home/mode-bg.png") center / contain no-repeat;
  transition:
    transform 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.32s ease;
}

.mode::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 46%;
  z-index: 0;
  width: 280px;
  height: 280px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(76, 182, 255, 0.14) 0%, transparent 68%);
  opacity: 0.65;
  pointer-events: none;
  transition: opacity 0.32s ease, transform 0.32s ease;
}

.mode__glow,
.mode__hex,
.mode__hex-inner,
.mode__hex-grad,
.mode__svg-bg,
.mode__building,
.mode__frame {
  display: none;
}

.mode__icon {
  position: absolute;
  left: 187px;
  top: 143px;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform 0.32s ease, filter 0.32s ease;
}

.mode__icon svg {
  width: 100%;
  height: 100%;
}

.mode__label {
  position: absolute;
  left: 149px;
  top: 243px;
  width: 166px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 40px;
  line-height: 40px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #ffffff;
  white-space: nowrap;
  z-index: 2;
  text-shadow: 0 0 16px rgba(76, 182, 255, 0.22);
  transition: text-shadow 0.32s ease, transform 0.32s ease, letter-spacing 0.32s ease;
}

.mode:nth-child(even) {
  margin-top: 16px;
}

.mode:hover {
  filter: brightness(1.1) drop-shadow(0 16px 36px rgba(0, 111, 229, 0.32));
  transform: translateY(-10px);
}

.mode:hover::before {
  opacity: 1;
  transform: translate(-50%, -52%) scale(1.06);
}

.mode:hover .mode__icon {
  animation: none;
  transform: scale(1.06);
  filter: drop-shadow(0 0 18px rgba(76, 182, 255, 0.65));
}

.mode:hover .mode__label {
  text-shadow: 0 0 24px rgba(76, 182, 255, 0.55);
  transform: translateY(-2px);
  letter-spacing: 3px;
}

@keyframes home-fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes home-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes home-side-in {
  from {
    opacity: 0.35;
    transform: translateX(var(--home-side-from));
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes home-bg-drift {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.05);
  }
}

@keyframes home-scan {
  from {
    top: -160px;
  }
  to {
    top: 1080px;
  }
}

@keyframes home-title-glow {
  0%,
  100% {
    text-shadow: 0 0 10px rgba(76, 182, 255, 0.18);
  }
  50% {
    text-shadow: 0 0 28px rgba(76, 182, 255, 0.5);
  }
}

@keyframes home-deco-pulse {
  0%,
  100% {
    opacity: 0.82;
  }
  50% {
    opacity: 1;
  }
}

@keyframes home-icon-float {
  0%,
  100% {
    transform: translateY(0);
    filter: drop-shadow(0 0 0 rgba(76, 182, 255, 0));
  }
  50% {
    transform: translateY(-6px);
    filter: drop-shadow(0 0 14px rgba(76, 182, 255, 0.55));
  }
}

@keyframes home-modes-glow {
  0%,
  100% {
    opacity: 0.82;
  }
  50% {
    opacity: 1;
  }
}

.home-bg__img {
  animation: home-bg-drift 22s ease-in-out infinite alternate;
}

.home-bg__dim::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(180deg, transparent, rgba(76, 182, 255, 0.1), transparent);
  pointer-events: none;
  animation: home-scan 8s linear infinite;
}

.home-side--left {
  --home-side-from: -36px;
  animation: home-side-in 0.9s ease both;
}

.home-side--right {
  --home-side-from: 36px;
  animation: home-side-in 0.9s ease both;
}

.home-title-deco {
  animation: home-fade-up 0.9s ease both;
}

.home-title-deco img {
  animation: home-deco-pulse 5s 0.9s ease-in-out infinite;
}

.home-title {
  animation: home-fade-up 0.7s ease both, home-title-glow 4s 0.7s ease-in-out infinite;
}

.home-sub {
  animation: home-fade-up 0.7s 0.12s ease both, home-title-glow 4s 0.82s ease-in-out infinite;
}

.mode {
  opacity: 0;
  animation: home-fade-up 0.75s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.mode:nth-child(1) {
  animation-delay: 0.22s;
}

.mode:nth-child(2) {
  animation-delay: 0.34s;
}

.mode:nth-child(3) {
  animation-delay: 0.46s;
}

.mode__icon {
  animation: home-icon-float 3.6s ease-in-out infinite;
}

.mode:nth-child(2) .mode__icon {
  animation-delay: 0.6s;
}

.mode:nth-child(3) .mode__icon {
  animation-delay: 1.2s;
}

@media (prefers-reduced-motion: reduce) {
  .home-bg__img,
  .home-bg__dim::after,
  .home-side--left,
  .home-side--right,
  .home-title-deco,
  .home-title-deco img,
  .home-title,
  .home-sub,
  .home-modes::before,
  .mode,
  .mode__icon {
    animation: none;
    opacity: 1;
    transform: none;
    filter: none;
    text-shadow: none;
  }

  .mode:nth-child(even) {
    margin-top: 0;
  }

  .mode:hover {
    transform: none;
    filter: none;
  }

  .mode:hover .mode__label {
    letter-spacing: 2px;
  }

  .mode__label {
    text-shadow: none;
  }

}