:root {
  --green-900: #0f3d24;
  --green-700: #1b6b3a;
  --green-600: #21874a;
  --accent: #f0a020;
  --ink: #1f2937;
  --muted: #64748b;
  --bg-soft: #f4f8f5;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 61, 36, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(15, 61, 36, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--green-900);
  letter-spacing: 0.02em;
}

.logo small {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav a.nav-link:hover { color: var(--green-700); }

.nav a.nav-link.active {
  color: var(--green-700);
  border-bottom-color: var(--accent);
}

.lang-toggle {
  border: 1.5px solid var(--green-700);
  background: transparent;
  color: var(--green-700);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-family: inherit;
}

.lang-toggle:hover {
  background: var(--green-700);
  color: var(--white);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-btn svg { width: 26px; height: 26px; stroke: var(--green-900); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: var(--white);
  overflow: hidden;
  background: linear-gradient(100deg, #0f3d24 0%, #1b6b3a 55%, #2e9e5b 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 120px 0 130px;
  max-width: 640px;
}

.kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 20px;
}

.hero p.lead {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  color: #2b1a00;
}

.btn-primary:hover { box-shadow: 0 8px 22px rgba(240, 160, 32, 0.4); }

.btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  color: var(--white);
  margin-left: 12px;
}

.btn-outline:hover { background: rgba(255, 255, 255, 0.12); }

/* Page hero (about / contact) */
.page-hero { padding: 84px 0; }
.page-hero .hero-inner { padding: 0; }

/* ---------- Sections ---------- */
.section { padding: 84px 0; }

.section.soft { background: var(--bg-soft); }

.section-head {
  max-width: 680px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--green-900);
  margin-bottom: 12px;
}

.section-head p { color: var(--muted); }

/* Business cards */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.biz-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.biz-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 40px rgba(15, 61, 36, 0.14);
}

.biz-card-body {
  padding: 26px 26px 30px;
  flex: 1;
}

.biz-card-body h3 {
  font-size: 1.2rem;
  color: var(--green-900);
  margin-bottom: 10px;
}

.biz-card-body p {
  font-size: 0.94rem;
  color: var(--muted);
}

/* Stats */
.stats {
  background: var(--green-900);
  color: var(--white);
  padding: 52px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.stat .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat .label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 4px;
}

/* CTA band */
.cta-band {
  background: linear-gradient(105deg, var(--green-700), var(--green-900));
  color: var(--white);
  text-align: center;
  padding: 72px 0;
}

.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 12px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 28px;
}

/* ---------- About page ---------- */
.about-grid {
  max-width: 860px;
  margin: 0 auto;
}

.about-text p { margin-bottom: 18px; color: #374151; }

.profile-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.profile-table th,
.profile-table td {
  text-align: left;
  padding: 15px 22px;
  font-size: 0.94rem;
  vertical-align: top;
}

.profile-table th {
  width: 34%;
  background: var(--bg-soft);
  color: var(--green-900);
  font-weight: 600;
  border-bottom: 1px solid #e5ece7;
}

.profile-table td {
  color: #374151;
  border-bottom: 1px solid #eef2ee;
}

.profile-table tr:last-child th,
.profile-table tr:last-child td { border-bottom: none; }

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  max-width: 720px;
  margin: 0 auto;
}

.contact-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 34px;
}

.contact-card h3 {
  color: var(--green-900);
  font-size: 1.15rem;
  margin-bottom: 22px;
}

.contact-item {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
  align-items: flex-start;
}

.contact-item .icon {
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 12px;
  background: var(--green-700);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item .icon svg { width: 20px; height: 20px; stroke: #fff; }

.contact-item .label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-item .value {
  color: var(--ink);
  font-size: 0.96rem;
  word-break: break-word;
}

.contact-item a.value { color: var(--green-700); font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--green-900);
  color: rgba(255, 255, 255, 0.82);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 44px;
}

.site-footer h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.site-footer .logo { color: var(--white); margin-bottom: 14px; }

.site-footer .logo small { color: rgba(255, 255, 255, 0.55); }

.footer-links a {
  display: block;
  padding: 4px 0;
  font-size: 0.92rem;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--accent); }

.footer-contact p {
  font-size: 0.9rem;
  padding: 3px 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .biz-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

  .menu-btn { display: block; }

  .nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px 24px 20px;
    border-bottom: 1px solid rgba(15, 61, 36, 0.1);
    box-shadow: 0 14px 24px rgba(15, 61, 36, 0.08);
    display: none;
  }

  .nav.open { display: flex; }

  .nav a.nav-link {
    width: 100%;
    padding: 12px 4px;
    border-bottom: 1px solid #eef2ee;
  }

  .nav a.nav-link.active { border-bottom-color: var(--accent); }

  .lang-toggle { margin-top: 14px; }

  .hero-inner { padding: 88px 0 96px; }
}

@media (max-width: 560px) {
  .btn-outline { margin-left: 0; margin-top: 12px; }
  .stats-grid { grid-template-columns: 1fr; gap: 30px; }
  .section { padding: 60px 0; }
  .contact-card { padding: 26px 22px; }
}