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

html {
  font-size: 62.5%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: #fff;
  color: #333;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

.landing {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.hero {
  width: 100%;
}

.hero__frame {
  position: relative;
  width: 100%;
  line-height: 0;
}

.hero__bg {
  display: block;
  width: 100%;
  height: auto;
}

.hero__cta {
  position: absolute;
  left: 50%;
  bottom: 1.5%;
  width: 88%;
  transform: translateX(-50%);
  text-decoration: none;
  animation: cta-pulse 1.2s ease-in-out infinite;
  transform-origin: center center;
}

.hero__cta:active {
  animation-play-state: paused;
  opacity: 0.92;
}

.hero__cta-btn {
  display: block;
  width: 100%;
  height: auto;
}

@keyframes cta-pulse {
  0%,
  100% {
    transform: translateX(-50%) scale(1);
  }
  50% {
    transform: translateX(-50%) scale(1.06);
  }
}

@media (min-width: 481px) {
  body {
    background: #f0f2f5;
  }

  .landing {
    margin-top: 12px;
    margin-bottom: 12px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.06);
  }
}