* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Arial, sans-serif; color: #1a1a1a; background: #fff; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

:root {
  --green: #2e7d32;
  --green-light: #43a047;
  --mint: #e8f5e9;
  --mint-deep: #c8e6c9;
  --muted: #6b7280;
  --border: #e5e7eb;
  --card-shadow: 0 2px 12px rgba(0,0,0,0.08);
  --card-shadow-hover: 0 8px 30px rgba(0,0,0,0.14);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.bg-mint { background: var(--mint); }
.bg-mint-deep { background: var(--mint-deep); }
.bg-white { background: #fff; }
.bg-gray { background: #f9fafb; }

nav.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: #fff; border-bottom: 1px solid var(--border); height: 64px; display: flex; align-items: center; }
nav.navbar .nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
nav.navbar .nav-logo {font-size: 1.1rem;font-weight: 800;color: #414141;display: flex;align-items: center;gap: 8px;}
nav.navbar .nav-logo span { background: var(--green); color: #fff; width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; font-weight: 900; }
nav.navbar .nav-links { display: flex; gap: 28px; list-style: none; }
nav.navbar .nav-links a { font-size: 0.9rem; font-weight: 500; color: #374151; transition: color 0.2s; }
nav.navbar .nav-links a:hover, nav.navbar .nav-links a.active { color: var(--green); }
nav.navbar .nav-cta { background: var(--green); color: #fff; padding: 8px 20px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; transition: background 0.2s; }
nav.navbar .nav-cta:hover { background: var(--green-light); }

footer { background: #111827; color: #d1d5db; padding: 48px 0 24px; }
footer .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
footer .footer-brand { font-size: 1.1rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
footer .footer-desc { font-size: 0.85rem; line-height: 1.7; }
footer h4 { color: #fff; font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; }
footer ul { list-style: none; }
footer ul li { margin-bottom: 8px; }
footer ul li a { font-size: 0.85rem; color: #9ca3af; transition: color 0.2s; }
footer ul li a:hover { color: #43a047; }
footer .footer-bottom { border-top: 1px solid #374151; padding-top: 24px; display: flex; align-items: center; justify-content: space-between; }
footer .footer-bottom p { font-size: 0.8rem; color: #6b7280; }
footer .eco-badge { background: #1a2e1a; color: #4caf50; font-size: 0.75rem; font-weight: 600; padding: 4px 12px; border-radius: 20px; border: 1px solid #2e7d32; }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 24px; border-radius: 10px; font-size: 0.9rem; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s; }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-light); }
.btn-outline { background: transparent; color: var(--green); border: 1.5px solid var(--green); }
.btn-outline:hover { background: var(--mint); }
.btn-lg { padding: 13px 32px; font-size: 1rem; }

.badge { display: inline-flex; align-items: center; gap: 6px; background: var(--mint); color: var(--green); font-size: 0.8rem; font-weight: 700; padding: 5px 14px; border-radius: 20px; margin-bottom: 20px; }

.card { background: #fff; border-radius: 16px; padding: 28px; box-shadow: var(--card-shadow); border: 1px solid var(--border); transition: box-shadow 0.2s; }
.card:hover { box-shadow: var(--card-shadow-hover); }
.icon-box { width: 48px; height: 48px; background: var(--mint); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }

.heading-xl { font-size: 3rem; font-weight: 800; line-height: 1.15; }
.heading-lg { font-size: 2rem; font-weight: 700; }
.heading-md { font-size: 1.5rem; font-weight: 700; }
.text-green { color: var(--green); }
.text-muted { color: var(--muted); }
.text-sm { font-size: 0.875rem; }
.text-center { text-align: center; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }

.hero { padding: 100px 0 80px; min-height: calc(100vh - 64px); display: flex; align-items: center; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-img { border-radius: 20px; overflow: hidden; box-shadow: var(--card-shadow-hover); background: var(--mint); min-height: 320px; display: flex; align-items: center; justify-content: center; }
.hero-meta-card { position: absolute; bottom: -16px; left: -16px; background: #fff; border-radius: 14px; box-shadow: var(--card-shadow); padding: 14px 18px; display: flex; align-items: center; gap: 12px; }
.hero-img-wrap { position: relative; }

.stat-card { background: var(--mint); border-radius: 16px; padding: 28px; }
.stat-card .stat-value { font-size: 2.5rem; font-weight: 800; color: var(--green); line-height: 1; margin-bottom: 6px; }
.stat-card .stat-label { font-size: 0.85rem; color: var(--muted); }

.product-card { border-radius: 16px; overflow: hidden; box-shadow: var(--card-shadow); border: 1px solid var(--border); display: flex; flex-direction: column; }
.product-card:hover { box-shadow: var(--card-shadow-hover); }
.product-card-img { height: 140px; display: flex; align-items: center; justify-content: center; }
.product-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.product-card-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.product-card-body p { font-size: 0.83rem; color: var(--muted); line-height: 1.6; margin-bottom: 14px; flex: 1; }

.tabs { margin-bottom: 40px; }
.tab-list { display: flex; gap: 6px; background: #f3f4f6; padding: 6px; border-radius: 12px; width: fit-content; }
.tab-btn { padding: 10px 20px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; border: none; background: transparent; cursor: pointer; color: #374151; transition: all 0.2s; }
.tab-btn.active { background: var(--green); color: #fff; }
.tab-content { display: none; }
.tab-content.active { display: block; }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: #374151; }
.form-control { width: 100%; padding: 11px 14px; border: 1.5px solid var(--border); border-radius: 10px; font-size: 0.9rem; color: #111; outline: none; transition: border 0.2s; }
.form-control:focus { border-color: var(--green); }
textarea.form-control { resize: vertical; min-height: 120px; }

.sustain-section { border-radius: 20px; padding: 36px; display: flex; gap: 28px; margin-bottom: 20px; }
.sustain-section:nth-child(odd) { background: var(--mint); }
.sustain-section:nth-child(even) { background: #fff; border: 1px solid var(--border); box-shadow: var(--card-shadow); }
.sustain-icon-box { width: 60px; height: 60px; background: #fff; border-radius: 16px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: var(--card-shadow); }
.sustain-points { display: flex; flex-wrap: wrap; gap: 16px 32px; margin-top: 16px; }
.sustain-point { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; font-weight: 500; }
.sustain-point::before { content: '✓ '; color: var(--green); font-weight: 700; }

.map-placeholder { border-radius: 16px; background: var(--mint); border: 1px solid #a5d6a7; height: 260px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; text-align: center; }
.cta-banner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.section-header p { color: var(--muted); max-width: 520px; margin: 0 auto; }

.industry-card { border-radius: 16px; padding: 28px; background: #fff; box-shadow: var(--card-shadow); border: 1px solid var(--border); }
.industry-card:hover { box-shadow: var(--card-shadow-hover); }
.industry-solutions { list-style: none; margin-top: 16px; }
.industry-solutions li { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.industry-solutions li::before { content: ''; display: block; width: 6px; height: 6px; background: var(--green); border-radius: 50%; flex-shrink: 0; }

.contact-info-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.contact-icon { width: 44px; height: 44px; background: var(--mint); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

@media (max-width: 900px) {
  .hero-grid, .grid-2, footer .footer-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .heading-xl { font-size: 2.2rem; }
  nav.navbar .nav-links { display: none; }
}
@media (max-width: 600px) {
  .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .sustain-section { flex-direction: column; }
  .cta-banner { flex-direction: column; text-align: center; }
}