:root {
  color-scheme: light;
  --bg: #f7faf8;
  --surface: #ffffff;
  --text: #17211b;
  --muted: #667085;
  --line: #dfe7e1;
  --primary: #70b979;
  --primary-dark: #2f7a4a;
  --soft: #eaf6ec;
  --warning: #f5a524;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--primary-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 231, 225, 0.8);
  background: rgba(247, 250, 248, 0.92);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: #ffffff;
  background: var(--primary);
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
}

.hero {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 36px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: var(--soft);
  font-size: 13px;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 16px;
  font-size: 28px;
  line-height: 1.25;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.lead {
  max-width: 660px;
  margin-top: 20px;
  color: #435047;
  font-size: 18px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
}

.button.primary {
  color: #ffffff;
  background: var(--primary-dark);
}

.button.secondary {
  color: var(--primary-dark);
  background: var(--soft);
}

.app-preview {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 24px 70px rgba(23, 33, 27, 0.08);
}

.phone-card {
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(180deg, #f8fbf8 0%, #ffffff 100%);
}

.phone-top {
  padding: 24px 22px 12px;
  background: var(--soft);
}

.pet-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-bottom: 1px solid #eef2ef;
}

.avatar {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #ffffff;
  background: var(--primary);
  font-weight: 900;
}

.section {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 44px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  min-height: 160px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
  border-radius: 10px;
  color: var(--primary-dark);
  background: var(--soft);
  font-weight: 900;
}

.doc {
  width: min(840px, calc(100% - 40px));
  margin: 0 auto;
  padding: 52px 0;
}

.doc-card {
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 36px rgba(31, 41, 51, 0.06);
}

.doc-card h1 {
  font-size: 36px;
}

.doc-card h2 {
  margin-top: 32px;
  font-size: 22px;
}

.doc-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.doc-card li {
  margin: 8px 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.notice {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 8px;
  color: #6b4b00;
  background: #fff7df;
  font-size: 14px;
  line-height: 1.7;
}

.site-footer {
  width: min(1080px, calc(100% - 40px));
  margin: 36px auto 0;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    gap: 14px;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 44px;
  }

  .hero-grid,
  .grid,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .doc-card {
    padding: 26px;
  }
}