:root {
            --primary: rgb(15, 118, 110);
            --primary-hover: rgb(13, 148, 136);
            --primary-light: rgba(15, 118, 110, 0.05);
            --text-dark: #111827;
            --text-main: #374151;
            --text-muted: #6b7280;
            --bg-body: #f9fafb;
            --bg-white: #ffffff;
            --border: #e5e7eb;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --radius: 8px;
            --radius-lg: 16px;
            --container-width: 1200px;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul, ol { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
        
        
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
        .section-title { font-size: 32px; text-align: center; margin-bottom: 16px; }
        .section-desc { text-align: center; color: var(--text-muted); max-width: 600px; margin: 0 auto 48px; font-size: 16px; }

        
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 24px; border-radius: var(--radius); font-weight: 600; font-size: 15px; cursor: pointer; transition: all 0.3s; text-align: center; }
        .btn-primary { background-color: var(--primary); color: #fff; box-shadow: 0 4px 14px 0 rgba(15,118,110,0.39); }
        .btn-primary:hover { background-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(15,118,110,0.4); }
        .btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background: var(--primary); color: #fff; }

        
        .header { background: var(--bg-white); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm); }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 22px; font-weight: 800; line-height: 1; color: var(--primary); white-space: nowrap; letter-spacing: 1px; }
        
        .nav-desktop { display: flex; gap: 32px; align-items: center; }
        .nav-desktop a { font-size: 16px; font-weight: 500; color: var(--text-dark); position: relative; }
        .nav-desktop a:hover { color: var(--primary); }
        .nav-desktop a::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 0; height: 2px; background: var(--primary); transition: width 0.3s; }
        .nav-desktop a:hover::after { width: 100%; }
        
        .header-actions { display: flex; align-items: center; gap: 16px; }
        .menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--text-dark); cursor: pointer; }

        
        .drawer-mask { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); z-index: 999; opacity: 0; visibility: hidden; transition: all 0.3s ease; }
        .drawer-mask.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: var(--bg-white); z-index: 1000; box-shadow: var(--shadow-lg); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; overflow-y: auto; }
        .drawer.active { transform: translateX(300px); }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { background: none; border: none; font-size: 28px; color: var(--text-muted); cursor: pointer; line-height: 1; }
        .drawer-nav { padding: 20px 0; }
        .drawer-nav a { display: block; padding: 12px 24px; font-size: 16px; font-weight: 500; color: var(--text-dark); border-left: 4px solid transparent; }
        .drawer-nav a:hover { background: var(--primary-light); color: var(--primary); border-left-color: var(--primary); }

        
        .footer { background: #042F2E; color: #ccfbf1; padding: 64px 0 32px; margin-top: 64px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { margin-top: 16px; font-size: 14px; opacity: 0.8; max-width: 300px; }
        .footer-title { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 24px; }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { font-size: 14px; opacity: 0.8; }
        .footer-links a:hover { opacity: 1; color: #5eead4; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 14px; opacity: 0.7; }
        .footer-bottom-links { display: flex; gap: 16px; }

        
        @media (max-width: 992px) {
            .nav-desktop, .header-actions .btn { display: none; }
            .menu-toggle { display: block; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
            .section-title { font-size: 26px; }
        }

        
        .hero { position: relative; background: linear-gradient(135deg, #0F766E 0%, #115E59 100%); padding: 100px 0; overflow: hidden; color: #fff; }
        .hero::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 60%); pointer-events: none; }
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; position: relative; z-index: 10; }
        .hero-content h1 { font-size: 48px; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 24px; }
        .hero-content p { font-size: 18px; color: #ccfbf1; margin-bottom: 32px; max-width: 500px; }
        .hero-buttons { display: flex; gap: 16px; }
        .btn-white { background: #fff; color: var(--primary); font-weight: bold; }
        .btn-white:hover { background: #f0fdf4; transform: translateY(-2px); }
        .btn-outline-white { border: 2px solid rgba(255,255,255,0.5); color: #fff; }
        .btn-outline-white:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
        .hero-image { position: relative; }
        .hero-image img { border-radius: var(--radius-lg); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); border: 4px solid rgba(255,255,255,0.1); }
        .hero-tags { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
        .hero-tag { background: rgba(255,255,255,0.15); padding: 6px 12px; border-radius: 20px; font-size: 13px; backdrop-filter: blur(4px); }

        .stats-section { padding: 40px 0; background: var(--bg-white); border-bottom: 1px solid var(--border); }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
        .stat-item h3 { font-size: 36px; color: var(--primary); margin-bottom: 8px; font-weight: 800; }
        .stat-item p { color: var(--text-muted); font-size: 15px; font-weight: 500; }

        .features-section { padding: 80px 0; }
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
        .feature-card { background: var(--bg-white); padding: 32px; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: all 0.3s; border: 1px solid transparent; }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
        .feature-icon { width: 56px; height: 56px; background: var(--primary-light); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; color: var(--primary); }
        .feature-icon svg { width: 32px; height: 32px; }
        .feature-title { font-size: 20px; margin-bottom: 12px; }
        .feature-desc { color: var(--text-muted); font-size: 15px; }

        .platform-section { padding: 80px 0; background: #fff; }
        .platform-row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 80px; }
        .platform-row:nth-child(even) { direction: rtl; }
        .platform-row:nth-child(even) .platform-content { direction: ltr; }
        .platform-content h3 { font-size: 28px; margin-bottom: 20px; position: relative; padding-left: 16px; }
        .platform-content h3::before { content: ''; position: absolute; left: 0; top: 5px; bottom: 5px; width: 4px; background: var(--primary); border-radius: 2px; }
        .platform-content p { color: var(--text-muted); margin-bottom: 24px; font-size: 16px; }
        .platform-list { margin-bottom: 32px; }
        .platform-list li { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--text-dark); font-weight: 500; }
        .platform-list li svg { color: var(--primary); width: 20px; height: 20px; }
        .platform-image img { border-radius: var(--radius-lg); box-shadow: var(--shadow); }

        .articles-section { padding: 80px 0; background: var(--bg-body); }
        .article-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .article-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform 0.3s; display: flex; flex-direction: column; }
        .article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
        .article-img { width: 100%; height: 180px; object-fit: cover; border-bottom: 1px solid var(--border); }
        .article-body { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; }
        .article-tags { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
        .article-tag { font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 2px 8px; border-radius: 4px; }
        .article-title { font-size: 18px; font-weight: 600; margin-bottom: 12px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex-grow: 1; }
        .article-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #9ca3af; border-top: 1px solid var(--border); padding-top: 12px; }

        .cta-section { padding: 80px 0; background: url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?auto=format&fit=crop&w=1920&q=80') center/cover no-relative; position: relative; text-align: center; color: #fff; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(15, 118, 110, 0.9); backdrop-filter: blur(4px); }
        .cta-content { position: relative; z-index: 10; max-width: 700px; margin: 0 auto; }
        .cta-content h2 { font-size: 36px; color: #fff; margin-bottom: 20px; }
        .cta-content p { font-size: 18px; color: #ccfbf1; margin-bottom: 40px; }

        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; text-align: center; }
            .hero-content p { margin: 0 auto 32px; }
            .hero-buttons { justify-content: center; }
            .hero-tags { justify-content: center; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .article-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .hero-content h1 { font-size: 36px; }
            .features-grid { grid-template-columns: 1fr; }
            .platform-row { grid-template-columns: 1fr !important; gap: 32px; }
            .platform-row:nth-child(even) { direction: ltr; }
            .article-grid { grid-template-columns: 1fr; }
        }