:root {
  color-scheme: light;
  --coral: #ff5a7a;
  --berry: #e84666;
  --blush: #ffe2ea;
  --cream: #fff8f2;
  --paper: #f7f3ef;
  --ink: #25212b;
  --muted: #625b68;
  --border: #efe5dd;
  --indigo: #34256b;
  --aqua: #6ae8ff;
  --mint: #2fcfa2;
  --lime: #b8f56a;
  --sky: #43a7ff;
  --gold: #ffbf4d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(255, 248, 242, 0.88);
  border-bottom: 1px solid rgba(239, 229, 221, 0.72);
  backdrop-filter: blur(18px);
}

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

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 32px);
  color: var(--muted);
  font-weight: 700;
  font-size: 15px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(40px, 7vw, 86px) clamp(18px, 5vw, 72px) 44px;
  background:
    radial-gradient(circle at 76% 16%, rgba(106, 232, 255, 0.32), transparent 28%),
    radial-gradient(circle at 18% 12%, rgba(255, 90, 122, 0.18), transparent 30%),
    linear-gradient(135deg, #fff8f2 0%, #fff2ec 44%, #f4f0ff 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--berry);
  font-size: 14px;
  font-weight: 800;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 18px;
  font-size: clamp(44px, 8vw, 84px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4.5vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
}

.lead {
  max-width: 660px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 850;
  white-space: nowrap;
}

.primary-button {
  background: linear-gradient(135deg, #ff9a7b, #ff6f91 48%, var(--coral));
  color: white;
  box-shadow: 0 16px 36px rgba(232, 70, 102, 0.24);
}

.secondary-button {
  background: white;
  color: var(--ink);
  border: 1px solid var(--border);
}

.compact {
  min-height: 46px;
  padding: 0 18px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 720px;
  margin: 0;
}

.trust-strip div {
  padding: 14px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(239, 229, 221, 0.78);
  border-radius: 8px;
}

dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

dd {
  margin: 3px 0 0;
  font-weight: 850;
  word-break: break-word;
}

.phone-stage {
  display: flex;
  justify-content: center;
}

.phone {
  width: min(100%, 390px);
  padding: 18px;
  border: 12px solid #2a2330;
  border-radius: 42px;
  background: #fffaf6;
  box-shadow: 0 36px 80px rgba(37, 33, 43, 0.18);
}

.phone-top,
.download-card {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone-top img,
.download-card img {
  width: 54px;
  height: 54px;
  border-radius: 14px;
}

.phone-top strong,
.download-card strong {
  display: block;
  line-height: 1.25;
}

.phone-top span,
.download-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.pet-card {
  margin: 18px 0;
  overflow: hidden;
  border-radius: 24px;
  aspect-ratio: 1 / 1;
  background: var(--blush);
}

.pet-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ai-bubble {
  padding: 16px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(106, 232, 255, 0.42), rgba(244, 240, 255, 0.95), rgba(255, 226, 234, 0.9));
}

.ai-bubble span {
  color: var(--indigo);
  font-size: 13px;
  font-weight: 900;
}

.ai-bubble p { margin: 6px 0 0; font-weight: 750; }

.mini-feed {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.mini-feed span {
  padding: 10px 6px;
  border-radius: 8px;
  background: var(--paper);
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.feature-band,
.download-band,
.story-band,
.site-footer {
  padding: clamp(48px, 7vw, 90px) clamp(18px, 5vw, 72px);
}

.section-head {
  max-width: 760px;
  margin-bottom: 26px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid article,
.download-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: white;
  box-shadow: 0 14px 36px rgba(37, 33, 43, 0.06);
}

.feature-grid article {
  padding: 22px;
}

.feature-grid p,
.download-band p,
.story-band p {
  color: var(--muted);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--blush);
  color: var(--berry);
  font-weight: 900;
}

.feature-icon.mint { background: rgba(47, 207, 162, 0.16); color: #13896b; }
.feature-icon.sky { background: rgba(67, 167, 255, 0.16); color: #116cad; }
.feature-icon.gold { background: rgba(255, 191, 77, 0.22); color: #946000; }

.story-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 6vw, 80px);
  align-items: center;
  background: #ffffff;
}

.story-band p:last-child {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
}

.download-band {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(22px, 5vw, 58px);
  align-items: center;
}

.download-card {
  padding: 20px;
  justify-content: space-between;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  background: var(--ink);
  color: white;
}

.site-footer p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  color: rgba(255, 255, 255, 0.82);
}

.legal-main {
  max-width: 920px;
  margin: 0 auto;
  padding: 52px 18px 76px;
}

.legal-main article {
  padding: clamp(22px, 5vw, 44px);
  border-radius: 8px;
  background: white;
  border: 1px solid var(--border);
}

.legal-main li { margin-bottom: 10px; color: var(--muted); }

@media (max-width: 920px) {
  .hero,
  .story-band,
  .download-band {
    grid-template-columns: 1fr;
  }

  .hero { min-height: auto; }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }

  .nav { width: 100%; justify-content: space-between; }

  .trust-strip,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .download-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}