*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --primary: #1a6b4a; --primary-dark: #145539; --primary-light: #22865e;
      --primary-pale: #e8f5ef; --primary-mid: #c5e6d4;
      --bg: #f8faf9; --bg2: #f0f3f1; --bg3: #ffffff;
      --text: #111a15; --muted: #4a5a50; --faint: #8a9a90;
      --border: #d4ddd8; --radius: 10px; --radius-lg: 16px;
      --shadow: 0 2px 12px rgba(26,107,74,0.10);
      --font: 'Inter', system-ui, sans-serif;
    }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
    a { color: var(--primary); text-decoration: none; }
    a:hover { text-decoration: underline; }
    .container { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }

    nav { position: sticky; top: 0; z-index: 100; background: rgba(248,250,249,0.95); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
    .nav-inner { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; height: 60px; display: flex; align-items: center; justify-content: space-between; }
    .nav-logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 800; font-size: 1.1rem; color: var(--primary-dark); letter-spacing: -0.03em; text-decoration: none; }
    .nav-logo:hover { text-decoration: none; }
    .nav-logo i { color: var(--primary); width: 22px; height: 22px; }
    .nav-logo .accent { color: var(--primary-light); font-weight: 600; }
    .nav-links { display: flex; align-items: center; gap: 1.5rem; list-style: none; }
    .nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--muted); }
    .nav-links a:hover { color: var(--primary); text-decoration: none; }

    .page-header { padding: 3rem 0 2rem; }
    .page-header h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 0.5rem; }
    .page-header p { font-size: 1rem; color: var(--muted); max-width: 600px; }

    .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; padding-bottom: 3rem; }

    .contact-form-wrap { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow); }
    .contact-form-wrap h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.25rem; }

    .form-group { margin-bottom: 1rem; }
    .form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text); margin-bottom: 0.3rem; }
    .form-group label .required { color: #dc3545; }
    .form-group input, .form-group textarea, .form-group select {
      width: 100%; font-family: var(--font); font-size: 0.95rem;
      padding: 0.7rem 0.9rem; border: 1.5px solid var(--border); border-radius: var(--radius);
      background: var(--bg); color: var(--text); outline: none; transition: border-color 0.15s;
    }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
      border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,107,74,0.12);
    }
    .form-group textarea { resize: vertical; min-height: 120px; }
    .form-group .field-error { font-size: 0.8rem; color: #dc3545; margin-top: 0.25rem; display: none; }
    .form-group.has-error input, .form-group.has-error textarea, .form-group.has-error select {
      border-color: #dc3545;
    }
    .form-group.has-error .field-error { display: block; }

    .contact-submit {
      display: flex; align-items: center; justify-content: center; gap: 0.5rem;
      width: 100%; background: var(--primary); color: white; border: none;
      border-radius: var(--radius); padding: 0.75rem; font-family: var(--font);
      font-size: 1rem; font-weight: 700; cursor: pointer; margin-top: 0.5rem;
      transition: background 0.15s, transform 0.1s;
    }
    .contact-submit:hover { background: var(--primary-dark); transform: translateY(-1px); }
    .contact-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
    .contact-submit i { width: 18px; height: 18px; }

    .contact-success {
      display: none; padding: 1.25rem; background: var(--primary-pale); border: 1px solid var(--primary-mid);
      border-radius: var(--radius); text-align: center; margin-top: 1rem;
    }
    .contact-success-title { font-weight: 700; color: var(--primary-dark); font-size: 1rem; }
    .contact-success-sub { color: var(--muted); font-size: 0.85rem; margin-top: 0.2rem; }

    .contact-error {
      display: none; padding: 1rem; background: #fef2f2; border: 1px solid #fecaca;
      border-radius: var(--radius); text-align: center; margin-top: 1rem;
      font-size: 0.9rem; color: #991b1b;
    }

    .contact-info { padding-top: 0.5rem; }
    .contact-info h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.25rem; }
    .info-card { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.5rem; }
    .info-icon {
      display: flex; align-items: center; justify-content: center;
      width: 40px; height: 40px; min-width: 40px; background: var(--primary-pale);
      border: 1px solid var(--primary-mid); border-radius: 10px; color: var(--primary);
    }
    .info-icon i { width: 20px; height: 20px; }
    .info-label { font-size: 0.8rem; font-weight: 600; color: var(--faint); text-transform: uppercase; letter-spacing: 0.05em; }
    .info-value { font-size: 0.95rem; color: var(--text); margin-top: 0.15rem; }
    .info-value a { color: var(--primary); }

    @media (max-width: 768px) {
      .contact-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 640px) { .nav-links { display: none; } }