/* ===========================================================
   Xiamen Oakcat Tech. Ltd. — site stylesheet
   =========================================================== */

:root {
  --bg: #fbf7f1;
  --bg-alt: #f2e9da;
  --card: #ffffff;
  --text: #2e2419;
  --text-muted: #6b5d4f;
  --primary: #7a4b27;
  --primary-dark: #5c371c;
  --accent: #c97b4a;
  --accent-soft: #eadfca;
  --sage: #7c9070;
  --border: #e6dac2;
  --radius: 14px;
  --shadow: 0 10px 30px -12px rgba(58, 39, 20, 0.25);
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 247, 241, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}

.brand svg { width: 40px; height: 40px; flex-shrink: 0; }

.brand .brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand .brand-text small {
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

nav.main-nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--primary-dark);
  border-bottom-color: var(--accent);
}

.nav-toggle { display: none; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* ---------- Hero ---------- */

.hero {
  padding: 76px 0 64px;
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.2;
  margin: 0 0 18px;
  color: var(--text);
}

.hero p.lead {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 46ch;
  margin: 0 0 30px;
}

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

.hero-art {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Sections ---------- */

section { padding: 68px 0; }

.section-head { max-width: 640px; margin: 0 auto 40px; text-align: center; }
.section-head h2 { font-size: 1.9rem; margin: 0 0 12px; }
.section-head p { color: var(--text-muted); margin: 0; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card h3 { margin: 0 0 10px; font-size: 1.12rem; }
.card p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

.alt-bg { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Product ---------- */

.product-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  align-items: center;
}

.product-visual {
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  min-height: 220px;
}

.product-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--sage);
  background: rgba(124, 144, 112, 0.14);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.product-card h3 { font-size: 1.4rem; margin: 6px 0 12px; }
.product-card ul { padding-left: 20px; margin: 16px 0; color: var(--text-muted); }
.product-card li { margin-bottom: 6px; }

/* ---------- Stats ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stats .num { font-size: 2rem; font-weight: 700; color: var(--primary-dark); }
.stats .label { color: var(--text-muted); font-size: 0.88rem; margin-top: 4px; }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.contact-info .item {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
}
.contact-info .item .icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--accent-soft); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-info .item h4 { margin: 0 0 4px; font-size: 1rem; }
.contact-info .item p, .contact-info .item a { margin: 0; color: var(--text-muted); }

form.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 16px;
}
form.contact-form label { font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; display: block; }
form.contact-form input,
form.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
}
form.contact-form textarea { min-height: 120px; resize: vertical; }
form.contact-form .note { font-size: 0.82rem; color: var(--text-muted); }

/* ---------- Legal / prose pages ---------- */

.prose {
  max-width: 780px;
  margin: 0 auto;
}
.prose h1 { font-size: 2.1rem; margin-bottom: 6px; }
.prose .updated { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 36px; }
.prose h2 { font-size: 1.25rem; margin-top: 38px; margin-bottom: 12px; color: var(--primary-dark); }
.prose p, .prose li { color: var(--text); }
.prose ul { padding-left: 22px; }
.prose a { text-decoration: underline; }

/* ---------- Page hero (secondary pages) ---------- */

.page-hero {
  padding: 52px 0 40px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-hero .hero-eyebrow { margin-bottom: 14px; }
.page-hero h1 { font-size: 2.2rem; margin: 0 0 12px; }
.page-hero p { color: var(--text-muted); max-width: 60ch; margin: 0 auto; }

/* ---------- Footer ---------- */

footer.site-footer {
  background: var(--primary-dark);
  color: #f3ece1;
  padding: 50px 0 26px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}

.footer-grid .brand { color: #fff; margin-bottom: 12px; }
.footer-grid p { color: rgba(243,236,225,0.75); font-size: 0.92rem; max-width: 34ch; }

.footer-grid h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  color: rgba(243,236,225,0.9);
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { color: rgba(243,236,225,0.78); font-size: 0.92rem; }
.footer-grid a:hover { color: #fff; }

.footer-bottom {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: rgba(243,236,225,0.6);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  nav.main-nav ul { flex-wrap: wrap; gap: 16px 20px; }
  .hero h1 { font-size: 2.1rem; }
}

@media (max-width: 600px) {
  nav.main-nav ul { justify-content: center; gap: 12px 16px; font-size: 0.9rem; }
  .nav-wrap { flex-direction: column; gap: 14px; }
}