:root {
  --mint-50: #f1fbf7;
  --mint-100: #dff7ef;
  --mint-300: #8ee4d2;
  --mint-500: #22b8a5;
  --mint-700: #118071;
  --ink: #14312d;
  --muted: #5f7872;
  --line: rgba(17, 128, 113, 0.18);
  --card: rgba(255, 255, 255, 0.78);
  --shadow: 0 24px 70px rgba(17, 128, 113, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(142, 228, 210, 0.32), transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(255, 216, 130, 0.26), transparent 28%),
    linear-gradient(180deg, #f7fffb 0%, #f5fbf7 48%, #ffffff 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand img {
  width: 34px;
  height: 34px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--mint-700);
  background: rgba(255, 255, 255, 0.72);
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(17, 128, 113, 0.08);
}

.btn.primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--mint-500), var(--mint-700));
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 56px;
  align-items: center;
  padding: 58px 0 72px;
}

.eyebrow {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--mint-700);
  background: rgba(34, 184, 165, 0.1);
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 18px 0 16px;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.lead {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

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

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 13px;
}

.trust span {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.app-frame {
  position: relative;
  padding: 12px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.app-frame img {
  display: block;
  width: 100%;
  border-radius: 22px;
}

.floating-pet {
  position: absolute;
  right: -36px;
  bottom: -34px;
  width: 138px;
  padding: 12px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.section {
  padding: 54px 0;
}

.section h2 {
  margin: 0 0 14px;
  font-size: 34px;
  letter-spacing: -0.02em;
}

.section-desc {
  margin: 0 0 28px;
  max-width: 720px;
  color: var(--muted);
  line-height: 1.8;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--card);
  box-shadow: 0 14px 36px rgba(17, 128, 113, 0.08);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.pet-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.pet-card {
  display: grid;
  place-items: center;
  min-height: 210px;
  text-align: center;
}

.pet-card img {
  max-width: 84%;
  max-height: 180px;
  object-fit: contain;
}

.pet-card h3 {
  margin: 14px 0 6px;
  font-size: 20px;
}

.pet-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.download-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 28px;
  border-radius: 28px;
  color: #fff;
  background: linear-gradient(135deg, var(--mint-500), var(--mint-700));
  box-shadow: var(--shadow);
}

.download-panel p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.86);
}

.download-panel .btn {
  color: var(--mint-700);
  background: #fff;
}

.footer {
  padding: 42px 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumb a {
  color: var(--mint-700);
}

.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
  box-shadow: 0 12px 28px rgba(17, 128, 113, 0.06);
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-link {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  box-shadow: 0 12px 28px rgba(17, 128, 113, 0.06);
}

.article-link h2,
.article-link h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.article-link p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.article {
  max-width: 860px;
  padding: 24px 0 72px;
}

.article h1 {
  margin-top: 14px;
  font-size: clamp(34px, 5vw, 52px);
}

.article h2 {
  margin: 34px 0 10px;
  font-size: 26px;
}

.article p,
.article li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.article ul,
.article ol {
  padding-left: 22px;
}

.article-note {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(34, 184, 165, 0.08);
  color: var(--mint-700);
  font-weight: 700;
}

.download-page {
  max-width: 820px;
  padding: 40px 0 72px;
}

.download-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.meta div {
  padding: 12px;
  border-radius: 16px;
  background: rgba(34, 184, 165, 0.08);
  color: var(--muted);
}

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

  .grid,
  .pet-row,
  .meta {
    grid-template-columns: 1fr;
  }

  .floating-pet {
    right: 12px;
    bottom: -28px;
  }

  .nav-links {
    gap: 10px;
    font-size: 13px;
  }
}