:root {
            --primary: rgb(0,184,148);
            --primary-hover: rgb(0,150,120);
            --primary-light: rgba(0,184,148,0.1);
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --text-main: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 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-md: 8px;
            --radius-lg: 12px;
            --transition: all 0.3s ease;
        }
        * { 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-body); line-height: 1.6; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .site-header { background: var(--bg-white); box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 100; }
        .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: 20px; font-weight: 800; line-height: 1; color: var(--text-main); white-space: nowrap; letter-spacing: 0.5px; }
        
        
        .desktop-nav { display: none; }
        .desktop-nav a { padding: 8px 16px; font-weight: 500; color: var(--text-main); border-radius: var(--radius-md); }
        .desktop-nav a:hover { color: var(--primary); background: var(--primary-light); }
        @media (min-width: 992px) {
            .desktop-nav { display: flex; gap: 10px; align-items: center; }
            .mobile-menu-toggle { display: none; }
        }
        
        
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; font-weight: 600; border-radius: var(--radius-md); cursor: pointer; transition: var(--transition); }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px 0 rgba(0,184,148,0.39); }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
        .btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background: var(--primary); color: #fff; }
        
        
        .mobile-menu-toggle { background: none; border: none; cursor: pointer; color: var(--text-main); display: flex; align-items: center; justify-content: center; padding: 8px; }
        .mobile-drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 998; backdrop-filter: blur(4px); }
        .mobile-drawer-overlay.active { opacity: 1; visibility: visible; }
        .mobile-drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: var(--bg-white); z-index: 999; transition: var(--transition); box-shadow: var(--shadow-lg); display: flex; flex-direction: column; }
        .mobile-drawer.active { left: 0; }
        .drawer-header { padding: 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); background: #f8fafc; }
        .drawer-close { background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 4px; }
        .drawer-nav { padding: 20px 0; overflow-y: auto; flex: 1; }
        .drawer-nav a { display: block; padding: 16px 24px; font-size: 16px; font-weight: 500; color: var(--text-main); border-left: 4px solid transparent; }
        .drawer-nav a:hover { background: var(--primary-light); color: var(--primary); border-left-color: var(--primary); }
        
        
        .hero { padding: 80px 0; background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 100%); overflow: hidden; }
        .hero-grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
        @media (min-width: 992px) { .hero-grid { grid-template-columns: 1.2fr 0.8fr; gap: 60px; } }
        .hero-content h1 { font-size: 42px; font-weight: 800; color: var(--text-main); line-height: 1.2; margin-bottom: 24px; }
        .hero-content h1 span { color: var(--primary); }
        .hero-content p { font-size: 18px; color: var(--text-body); margin-bottom: 32px; max-width: 600px; }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); transform: perspective(1000px) rotateY(-5deg); transition: var(--transition); }
        .hero-visual:hover { transform: perspective(1000px) rotateY(0deg); }
        .hero-visual img { width: 100%; height: auto; display: block; }
        .hero-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top right, rgba(0,184,148,0.2), transparent); pointer-events: none; }
        
        
        .features { padding: 80px 0; background: var(--bg-white); }
        .section-header { text-align: center; margin-bottom: 50px; }
        .section-header h2 { font-size: 32px; color: var(--text-main); margin-bottom: 16px; }
        .section-header p { color: var(--text-muted); font-size: 16px; }
        .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .feature-card { padding: 40px 30px; background: var(--bg-body); border-radius: var(--radius-lg); text-align: center; transition: var(--transition); border: 1px solid transparent; }
        .feature-card:hover { transform: translateY(-5px); border-color: var(--primary-light); box-shadow: var(--shadow-md); background: #fff; }
        .feature-icon { width: 64px; height: 64px; background: var(--primary-light); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; font-size: 28px; }
        .feature-card h3 { font-size: 20px; color: var(--text-main); margin-bottom: 16px; }
        
        
        .articles { padding: 80px 0; }
        .article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
        .article-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-color); display: flex; flex-direction: column; height: 100%; }
        .article-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--primary-light); }
        .article-img { width: 100%; height: 200px; object-fit: cover; }
        .article-content { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .article-tags { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
        .tag-badge { font-size: 12px; background: var(--bg-body); color: var(--primary); padding: 4px 10px; border-radius: 20px; font-weight: 500; }
        .article-title { font-size: 18px; font-weight: 700; color: var(--text-main); 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: 20px; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
        .article-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--bg-body); padding-top: 16px; margin-top: auto; }
        .article-meta span { display: flex; align-items: center; gap: 4px; }
        
        
        .hot-section { margin-bottom: 60px; padding: 40px; background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border-left: 4px solid var(--primary); }
        .hot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 24px; }
        .hot-item { display: flex; gap: 16px; align-items: center; }
        .hot-item img { width: 80px; height: 80px; border-radius: var(--radius-md); object-fit: cover; }
        .hot-item-content h4 { font-size: 15px; margin-bottom: 8px; color: var(--text-main); }
        
        
        .brand-cta { padding: 100px 0; background: var(--text-main); color: #fff; text-align: center; position: relative; overflow: hidden; }
        .brand-cta::before { content: ''; position: absolute; inset: 0; background: url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&w=2000&q=80') center/cover; opacity: 0.1; }
        .brand-cta-inner { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
        .brand-cta h2 { font-size: 36px; margin-bottom: 20px; }
        .brand-cta p { font-size: 18px; color: #cbd5e1; margin-bottom: 40px; }
        
        
        .site-footer { background: #1e293b; color: #94a3b8; padding: 80px 0 0 0; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 60px; }
        .footer-logo span { color: #fff; }
        .footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.8; }
        .footer-links h3 { color: #fff; font-size: 18px; margin-bottom: 24px; font-weight: 600; }
        .footer-links ul li { margin-bottom: 12px; }
        .footer-links a:hover { color: var(--primary); padding-left: 5px; }
        .footer-contact p { margin-bottom: 12px; }
        .footer-bottom { border-top: 1px solid #334155; padding: 24px 0; text-align: center; font-size: 14px; }