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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(180deg, #f0f4ff 0%, #ffffff 40%);
  color: #1f2937;
  line-height: 1.6;
}

.page {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 24px;
}

.logo {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.18);
  margin-bottom: 16px;
}

.title {
  font-size: 28px;
  font-weight: 700;
  color: #111827;
}

.banner {
  margin-bottom: 24px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

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

.description {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.description p {
  font-size: 15px;
  color: #4b5563;
  white-space: pre-wrap;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #111827;
}

.screenshots {
  margin-bottom: 32px;
}

.screenshot-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.screenshot {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
}

.download {
  position: sticky;
  bottom: 16px;
}

.download-btn {
  display: block;
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-btn:active {
  transform: scale(0.98);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
}