:root {
  color-scheme: dark;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  background: #061422;
  color: #f7f9fb;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: #061422;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(65, 92, 115, 0.22), transparent 24rem),
    #061422;
}

.brochure {
  width: 100%;
  overflow: hidden;
}

.pages {
  display: grid;
  width: min(100%, 1600px);
  margin: 0 auto;
  gap: clamp(4px, 0.7vw, 12px);
  padding: 0 clamp(0px, 1vw, 16px);
}

.page {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2080 / 1170;
  background: #f1f1f1;
  box-shadow: 0 8px 35px rgba(0, 0, 0, 0.18);
}

.download {
  position: relative;
  display: grid;
  min-height: clamp(380px, 52vw, 600px);
  place-items: center;
  padding: 72px 24px max(72px, env(safe-area-inset-bottom));
  overflow: hidden;
  text-align: center;
  isolation: isolate;
}

.download::before,
.download::after {
  position: absolute;
  z-index: -1;
  border-radius: 999px;
  content: "";
  filter: blur(1px);
}

.download::before {
  top: 12%;
  left: 50%;
  width: min(52vw, 660px);
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(136, 159, 178, 0.17), transparent 68%);
  transform: translateX(-50%);
}

.download::after {
  right: -18%;
  bottom: -55%;
  width: min(65vw, 800px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.download__inner {
  width: min(100%, 720px);
}

.download__eyebrow {
  margin: 0 0 14px;
  color: #9daab5;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.32em;
}

.download h2 {
  margin: 0;
  font-size: clamp(28px, 4.3vw, 50px);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.download__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 42px;
}

.store-button {
  display: grid;
  width: 210px;
  min-height: 68px;
  grid-template-columns: 34px auto;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 12px 24px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.52);
  cursor: not-allowed;
  font: inherit;
  text-align: left;
  backdrop-filter: blur(10px);
}

.store-button svg {
  width: 31px;
  height: 31px;
  fill: currentColor;
}

.store-button span {
  font-size: 20px;
  font-weight: 500;
  line-height: 1.15;
}

.store-button small {
  display: block;
  margin-bottom: 3px;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.16em;
}

.download__notice {
  margin: 18px 0 0;
  color: #8d9ba7;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-indent: 0.28em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 560px) {
  .pages {
    gap: 2px;
  }

  .download {
    min-height: 430px;
    padding-inline: 20px;
  }

  .download__actions {
    width: min(100%, 330px);
    flex-direction: column;
    gap: 12px;
    margin-inline: auto;
    margin-top: 34px;
  }

  .store-button {
    width: 100%;
    min-height: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}