:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #667085;
  --line: rgba(23, 32, 51, 0.12);
  --surface: #f6f7fb;
  --accent: #1f7a8c;
  --accent-strong: #0b4f5c;
  --paper: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

.page {
  min-height: 100vh;
}

.hero {
  min-height: 86vh;
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
  align-items: stretch;
  background: var(--paper);
  overflow: hidden;
}

.hero__media {
  min-height: 520px;
  background:
    linear-gradient(120deg, rgba(23, 32, 51, 0.18), rgba(31, 122, 140, 0.18)),
    url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.hero__content {
  padding: clamp(40px, 7vw, 96px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  animation: rise 0.7s ease both;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(52px, 8vw, 112px);
  line-height: 0.92;
  letter-spacing: 0;
}

.summary {
  max-width: 560px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 46px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.18s ease, background 0.18s ease;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--accent-strong);
}

.button--ghost {
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
}

.button--ghost:hover {
  color: #fff;
}

.section {
  padding: clamp(34px, 6vw, 76px);
}

.section--intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 48px;
  align-items: end;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #eef3f5;
}

.section__label {
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

h2 {
  margin: 12px 0 0;
  font-size: clamp(32px, 5vw, 64px);
  line-height: 1;
  letter-spacing: 0;
}

.section p,
.features p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.features {
  padding: clamp(34px, 6vw, 76px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.features article {
  min-height: 260px;
  padding: 28px;
  background: var(--paper);
  transition: transform 0.18s ease, background 0.18s ease;
}

.features article:hover {
  transform: translateY(-4px);
  background: #fbfcff;
}

.features span {
  color: var(--accent);
  font-weight: 900;
}

h3 {
  margin: 52px 0 14px;
  font-size: 26px;
  letter-spacing: 0;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .hero,
  .section--intro,
  .features {
    grid-template-columns: 1fr;
  }

  .hero__media {
    min-height: 360px;
    order: 2;
  }
}