:root { --primary: rgb(101,163,13); --primary-hover: rgb(77,124,10); --bg-light: #f4f9f0; --text-main: #1f2937; --text-sub: #4b5563; --border: #e5e7eb; --white: #ffffff; }
        * { margin: 0; padding: 0; box-sizing: border-box; font-family: system-ui, -apple-system, sans-serif; }
        body { color: var(--text-main); line-height: 1.6; background: #fafafa; }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        .header { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; height: 70px; display: flex; align-items: center; box-shadow: 0 2px 10px rgba(0,0,0,0.02); }
        .header .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
        .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: #111; white-space: nowrap; }
        .desktop-nav { display: flex; gap: 30px; align-items: center; }
        .desktop-nav a { font-weight: 500; color: var(--text-main); transition: color 0.3s; font-size: 15px; }
        .desktop-nav a:hover { color: var(--primary); }
        .menu-toggle { display: none; cursor: pointer; color: var(--text-main); }
        
        .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 200; opacity: 0; visibility: hidden; transition: 0.3s; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: var(--white); z-index: 201; transition: 0.3s; display: flex; flex-direction: column; box-shadow: 2px 0 10px rgba(0,0,0,0.1); }
        .drawer.open { left: 0; }
        .drawer-overlay.open { opacity: 1; visibility: visible; }
        .drawer-header { display: flex; justify-content: space-between; align-items: center; padding: 20px; border-bottom: 1px solid var(--border); }
        .drawer-close { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--text-sub); }
        .drawer-nav { padding: 20px; display: flex; flex-direction: column; gap: 20px; overflow-y: auto; }
        .drawer-nav a { font-size: 16px; font-weight: 500; color: var(--text-main); }
        
        .dl-hero { background: linear-gradient(to right, #111827, #1f2937); color: var(--white); padding: 80px 0; }
        .dl-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .dl-hero h1 { font-size: 42px; margin-bottom: 20px; font-weight: 800; }
        .dl-hero h1 span { color: var(--primary); }
        .dl-hero p { font-size: 18px; color: #9ca3af; margin-bottom: 40px; }
        
        .btn-dl { display: inline-flex; align-items: center; gap: 10px; padding: 16px 32px; border-radius: 8px; font-size: 18px; font-weight: 700; background: var(--primary); color: #fff; transition: 0.3s; box-shadow: 0 10px 20px rgba(101,163,13,0.3); }
        .btn-dl:hover { background: var(--primary-hover); transform: translateY(-3px); }
        
        .steps-section { padding: 80px 0; background: var(--white); }
        .section-header { text-align: center; margin-bottom: 50px; }
        .section-header h2 { font-size: 32px; font-weight: 700; color: #111; margin-bottom: 16px; }
        
        .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; position: relative; }
        .step-card { text-align: center; padding: 30px; position: relative; z-index: 2; background: var(--white); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.03); border: 1px solid var(--border); }
        .step-number { width: 60px; height: 60px; background: var(--primary); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 800; margin: -60px auto 20px; box-shadow: 0 4px 10px rgba(101,163,13,0.4); border: 4px solid var(--white); }
        .step-card h3 { font-size: 20px; margin-bottom: 12px; color: #111; }
        .step-card p { color: var(--text-sub); }
        
        .footer { background: #111827; color: #9ca3af; padding: 80px 0 30px; margin-top: 60px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
        .footer-brand .logo span { color: var(--white); }
        .footer-desc { margin-top: 24px; font-size: 14px; line-height: 1.8; }
        .footer-title { color: var(--white); font-size: 16px; font-weight: 600; margin-bottom: 24px; }
        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 14px; }
        .footer-links a { transition: color 0.3s; font-size: 14px; }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom { border-top: 1px solid #374151; padding-top: 24px; display: flex; justify-content: space-between; font-size: 14px; }
        
        @media(max-width: 1024px) {
            .dl-hero-grid { grid-template-columns: 1fr; text-align: center; }
            .steps-grid { grid-template-columns: 1fr; gap: 60px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media(max-width: 768px) {
            .desktop-nav { display: none; }
            .menu-toggle { display: block; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
            .dl-hero h1 { font-size: 32px; }
        }