:root {
  --ink: #211c18;
  --muted: #6f685f;
  --paper: #fbfaf6;
  --panel: #ffffff;
  --yellow: #f4c84a;
  --yellow-soft: #fff4c9;
  --line: #ded9d0;
  --dark: #26221e;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.65; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
.shell { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; border-radius: 8px; background: var(--ink); color: #fff; }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(33,28,24,.08); background: rgba(251,250,246,.92); backdrop-filter: blur(14px); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; }
.brand img { width: 92px; }
.brand span { padding-left: 10px; border-left: 1px solid var(--line); letter-spacing: .08em; }
nav { display: flex; align-items: center; gap: 28px; }
nav a { text-decoration: none; font-size: 14px; font-weight: 600; }
nav a:hover { opacity: .62; }
.nav-cta { padding: 10px 17px; border: 1px solid var(--ink); border-radius: 999px; }

.hero { overflow: hidden; padding: 108px 0 126px; background: linear-gradient(135deg, #fbfaf6 0%, #fff8de 100%); }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 72px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 18px; color: var(--muted); font-size: 13px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 3px; border-radius: 3px; background: var(--yellow); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 28px; font-size: clamp(48px, 6vw, 76px); line-height: 1.08; letter-spacing: -.055em; }
h1 em { display: block; color: #947014; font-style: normal; }
.lead { max-width: 650px; margin-bottom: 32px; color: #4d4740; font-size: 19px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 23px; border-radius: 999px; text-decoration: none; font-weight: 700; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, nav a:focus-visible, .company-copy a:focus-visible { outline: 3px solid #2365d8; outline-offset: 3px; }
.primary { background: var(--yellow); box-shadow: 0 10px 28px rgba(174,129,10,.2); }
.primary:hover { background: #ffd968; }
.secondary { border: 1px solid var(--line); background: rgba(255,255,255,.72); }
.hero-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }

.hero-visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.sun { position: absolute; width: 420px; height: 420px; border-radius: 50%; background: var(--yellow); opacity: .22; filter: blur(1px); }
.phone-card { position: relative; z-index: 2; width: min(100%, 340px); padding: 28px 22px 22px; border: 1px solid rgba(33,28,24,.12); border-radius: 34px; background: #fff; box-shadow: 0 35px 80px rgba(75,57,13,.18); transform: rotate(2deg); }
.phone-top { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 20px; font-weight: 700; }
.status { padding: 4px 9px; border-radius: 999px; background: var(--yellow-soft); color: #765914; font-size: 11px; }
.pet-card { display: flex; align-items: center; gap: 13px; padding: 14px; border-radius: 18px; background: #f7f4ec; }
.pet-mark { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 16px; background: var(--yellow); }
.pet-mark svg { width: 42px; fill: none; stroke: var(--ink); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.pet-card strong, .pet-card span { display: block; }
.pet-card span { color: var(--muted); font-size: 12px; }
.task { display: flex; align-items: center; gap: 12px; padding: 18px 4px; border-bottom: 1px solid #ece8e1; }
.task strong, .task small { display: block; }
.task small { color: var(--muted); }
.check { width: 25px; height: 25px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: var(--yellow); font-weight: 800; }
.check.hollow { border: 2px solid var(--line); background: transparent; }
.ai-chip { margin-top: 18px; padding: 14px; border-radius: 16px; background: var(--dark); color: #fff; }
.ai-chip span { display: inline-block; margin-bottom: 7px; padding: 2px 8px; border-radius: 999px; background: var(--yellow); color: var(--ink); font-size: 11px; font-weight: 800; }
.ai-chip p { margin: 0; color: #e3dfd9; font-size: 13px; }
.float-card { position: absolute; z-index: 3; min-width: 142px; padding: 14px 17px; border: 1px solid rgba(33,28,24,.12); border-radius: 15px; background: rgba(255,255,255,.92); box-shadow: 0 18px 40px rgba(59,47,23,.14); }
.float-card b, .float-card span { display: block; }
.float-card b { font-size: 14px; }
.float-card span { color: var(--muted); font-size: 11px; }
.float-card.record { left: 0; top: 94px; transform: rotate(-5deg); }
.float-card.source { right: 0; bottom: 74px; transform: rotate(4deg); }

.section { padding: 120px 0; }
.section-heading { max-width: 720px; margin-bottom: 54px; }
h2 { margin-bottom: 20px; font-size: clamp(36px, 4.5vw, 58px); line-height: 1.15; letter-spacing: -.04em; }
.section-heading > p:last-child { max-width: 660px; color: var(--muted); font-size: 18px; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
.feature { min-height: 300px; display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: var(--panel); }
.feature-large { grid-row: span 2; min-height: 618px; background: var(--yellow-soft); }
.feature.dark { background: var(--dark); color: #fff; }
.feature .number { margin-bottom: auto; color: var(--muted); font-size: 13px; font-weight: 800; }
.feature.dark .number { color: #bdb5aa; }
.feature h3 { margin: 22px 0 11px; font-size: 25px; }
.feature p { margin-bottom: 0; color: var(--muted); }
.feature.dark p { color: #d7d0c7; }
.mini-timeline { flex: 1; display: flex; align-items: flex-end; gap: 10px; margin-top: 42px; padding-bottom: 12px; border-bottom: 2px solid var(--ink); }
.mini-timeline i { position: relative; flex: 1; height: 32%; border-radius: 8px 8px 0 0; background: var(--yellow); }
.mini-timeline i:nth-child(2) { height: 52%; }
.mini-timeline i:nth-child(3) { height: 72%; }
.mini-timeline i:nth-child(4) { height: 94%; }

.principles { padding: 120px 0; background: var(--dark); color: #fff; }
.principles-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 110px; }
.eyebrow.light { color: #c5beb5; }
.principle-list article { display: grid; grid-template-columns: 48px 1fr; gap: 20px; padding: 28px 0; border-top: 1px solid rgba(255,255,255,.18); }
.principle-list article:last-child { border-bottom: 1px solid rgba(255,255,255,.18); }
.principle-list strong { color: var(--yellow); }
.principle-list h3 { margin-bottom: 8px; font-size: 22px; }
.principle-list p { margin: 0; color: #c9c1b8; }

.company-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.company-copy > p { color: #4d4740; font-size: 19px; }
.company-copy dl { margin: 42px 0 0; }
.company-copy dl div { display: grid; grid-template-columns: 120px 1fr; gap: 24px; padding: 18px 0; border-top: 1px solid var(--line); }
.company-copy dl div:last-child { border-bottom: 1px solid var(--line); }
.company-copy dt { color: var(--muted); }
.company-copy dd { margin: 0; font-weight: 650; }

.closing { padding: 36px 0 100px; }
.closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 54px; border-radius: 26px; background: var(--yellow-soft); }
.closing p { margin-bottom: 8px; color: var(--muted); font-weight: 700; }
.closing h2 { margin: 0; font-size: clamp(30px, 4vw, 46px); }
footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand img { width: 78px; }
.footer-inner p { margin: 0; color: var(--muted); font-size: 13px; }

@media (max-width: 900px) {
  .hero-grid, .principles-grid, .company-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 54px; }
  .hero-copy { max-width: 720px; }
  .hero-visual { min-height: 470px; }
  .principles-grid, .company-grid { gap: 42px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-large { grid-row: auto; min-height: 360px; grid-column: span 2; }
}

@media (max-width: 650px) {
  .shell { width: min(calc(100% - 32px), var(--max)); }
  .site-header { position: static; }
  .nav-wrap { min-height: 68px; }
  nav a:not(.nav-cta) { display: none; }
  .nav-cta { padding: 8px 13px; }
  .hero { padding: 72px 0 84px; }
  h1 { font-size: clamp(43px, 13vw, 58px); }
  .lead { font-size: 17px; }
  .hero-visual { min-height: 430px; }
  .phone-card { width: 295px; padding: 24px 18px 18px; }
  .float-card { min-width: 126px; padding: 11px 13px; }
  .float-card.record { left: -5px; top: 72px; }
  .float-card.source { right: -5px; bottom: 50px; }
  .section, .principles { padding: 82px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature, .feature-large { min-height: 280px; grid-column: auto; }
  .feature-large { min-height: 380px; }
  .closing { padding: 24px 0 74px; }
  .closing-inner { align-items: flex-start; flex-direction: column; padding: 32px 24px; }
  .company-copy dl div { grid-template-columns: 1fr; gap: 3px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}