:root {
  color-scheme: light;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: #172026;
  background: #f5f7f8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(30, 106, 95, 0.10), transparent 38%),
    linear-gradient(180deg, #ffffff 0%, #f1f4f5 100%);
}

.page {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0 40px;
}

.hero {
  min-height: calc(100vh - 130px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 14px;
  color: #2f746d;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: 56px;
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: 0;
}

.lead {
  margin: 22px 0 0;
  max-width: 560px;
  font-size: 20px;
  line-height: 1.7;
  color: #45545b;
}

.actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  background: #176b5f;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(23, 107, 95, 0.22);
}

.download-button:hover {
  background: #11574d;
}

.meta {
  color: #66757c;
  font-size: 14px;
}

.product-visual {
  overflow: hidden;
  border: 1px solid #d7e0e3;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 24px 60px rgba(23, 32, 38, 0.14);
}

.window-bar {
  height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  border-bottom: 1px solid #e4eaec;
  background: #f8fafb;
}

.window-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c9d3d7;
}

.visual-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 14px;
  padding: 18px;
}

.visual-panel {
  min-height: 112px;
  padding: 18px;
  border: 1px solid #e2e8ea;
  border-radius: 6px;
  background: #fbfcfc;
}

.visual-panel.large {
  min-height: 238px;
  grid-row: span 2;
  background: linear-gradient(180deg, #eff7f5 0%, #ffffff 100%);
}

.visual-panel.accent {
  background: #172026;
  color: #ffffff;
}

.visual-panel b {
  display: block;
  font-size: 18px;
  margin-bottom: 10px;
}

.visual-panel p {
  margin: 0;
  color: inherit;
  opacity: 0.72;
}

.notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding-top: 20px;
}

.notes h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.notes p {
  margin: 0;
  color: #526067;
  line-height: 1.7;
}

@media (max-width: 860px) {
  .page {
    width: min(100% - 28px, 560px);
    padding-top: 36px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 32px;
  }

  h1 {
    font-size: 40px;
  }

  .lead {
    font-size: 17px;
  }

  .product-visual {
    order: -1;
  }

  .notes {
    grid-template-columns: 1fr;
    gap: 22px;
    padding-top: 34px;
  }
}