:root {
            --primary: rgb(234,88,12);
            --primary-hover: rgba(234,88,12,0.85);
            --primary-light: rgba(234,88,12,0.08);
            --text-main: #111827;
            --text-muted: #4b5563;
            --text-light: #9ca3af;
            --bg-body: #f9fafb;
            --bg-white: #ffffff;
            --border-color: #e5e7eb;
            --radius: 12px;
            --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);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: var(--font-family); 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 { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .header { background-color: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--border-color); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        
        
        .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: flex; gap: 32px; align-items: center; }
        .desktop-nav a { font-weight: 500; font-size: 16px; color: var(--text-muted); padding: 8px 0; position: relative; }
        .desktop-nav a:hover { color: var(--primary); }
        .desktop-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--primary); transition: width 0.3s; }
        .desktop-nav a:hover::after { width: 100%; }
        
        .header-actions { display: flex; align-items: center; gap: 16px; }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; 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 rgba(234,88,12,0.3); }
        .btn-primary:hover { background-color: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(234,88,12,0.4); }
        .btn-outline { border: 1px solid var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background: var(--primary-light); }
        
        
        .mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; flex-direction: column; gap: 5px; }
        .mobile-toggle span { display: block; width: 24px; height: 2px; background-color: var(--text-main); transition: 0.3s; }
        
        
        .drawer { position: fixed; inset: 0; z-index: 1000; pointer-events: none; }
        .drawer.active { pointer-events: auto; }
        .drawer-mask { position: absolute; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; transition: opacity 0.3s; }
        .drawer.active .drawer-mask { opacity: 1; }
        .drawer-content { position: absolute; top: 0; bottom: 0; left: -300px; width: 280px; background: var(--bg-white); box-shadow: var(--shadow-lg); transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; }
        .drawer.active .drawer-content { left: 0; }
        .drawer-header { padding: 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-color); }
        .drawer-close { background: none; border: none; font-size: 28px; color: var(--text-muted); cursor: pointer; line-height: 1; }
        .drawer-body { flex: 1; overflow-y: auto; padding: 20px; }
        .drawer-nav { display: flex; flex-direction: column; gap: 16px; }
        .drawer-nav a { display: block; font-size: 16px; font-weight: 500; color: var(--text-main); padding: 12px 16px; border-radius: 8px; background: var(--bg-body); }
        .drawer-nav a:hover { background: var(--primary-light); color: var(--primary); }
        
        
        .footer { background-color: #111827; color: #9ca3af; padding: 60px 0 30px; margin-top: 60px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer .logo span { color: #fff; }
        .footer-desc { margin-top: 16px; font-size: 14px; max-width: 300px; line-height: 1.8; }
        .footer-title { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; }
        .footer-links { display: flex; flex-direction: column; gap: 12px; }
        .footer-links a { color: #9ca3af; font-size: 14px; }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom { padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; justify-content: space-between; align-items: center; font-size: 14px; flex-wrap: wrap; gap: 16px; }
        .footer-utils { display: flex; gap: 20px; }
        
        
        .hero { padding: 80px 0; background: linear-gradient(135deg, var(--bg-white) 0%, #fff1eb 100%); overflow: hidden; position: relative; }
        .hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .hero-content h1 { font-size: 48px; font-weight: 800; line-height: 1.2; margin-bottom: 24px; color: var(--text-main); letter-spacing: -1px; }
        .hero-content h1 span { color: var(--primary); }
        .hero-desc { font-size: 18px; color: var(--text-muted); margin-bottom: 40px; line-height: 1.8; }
        .hero-actions { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
        .hero-tags { display: flex; gap: 16px; margin-top: 40px; }
        .hero-tag { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-muted); font-weight: 500; }
        .hero-tag::before { content: ''; display: block; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
        .hero-visual { position: relative; }
        .hero-image-wrap { position: relative; z-index: 2; border-radius: 24px; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.15); overflow: hidden; background: #fff; border: 8px solid #fff; }
        .hero-image-wrap::before { content:''; display:block; padding-top:120%; background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="400" height="480" viewBox="0 0 400 480"><rect width="100%" height="100%" fill="%23f3f4f6"/><text x="50%" y="50%" font-family="sans-serif" font-size="20" fill="%239ca3af" text-anchor="middle" dy=".3em">App Interface Preview</text></svg>') center/cover; }
        .hero-bg-shape { position: absolute; width: 400px; height: 400px; background: var(--primary); filter: blur(80px); opacity: 0.1; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 1; border-radius: 50%; }

        .stats-section { padding: 40px 0; background: var(--bg-white); border-bottom: 1px solid var(--border-color); }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
        .stat-val { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
        .stat-label { font-size: 14px; color: var(--text-muted); font-weight: 500; }

        .features { padding: 100px 0; }
        .sec-title { text-align: center; margin-bottom: 60px; }
        .sec-title h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
        .sec-title p { color: var(--text-muted); font-size: 18px; max-width: 600px; margin: 0 auto; }
        .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
        .feature-card { background: var(--bg-white); padding: 40px 30px; border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform 0.3s, box-shadow 0.3s; border: 1px solid var(--border-color); }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
        .feature-icon { width: 60px; height: 60px; border-radius: 16px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 28px; margin-bottom: 24px; }
        .feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
        .feature-card p { color: var(--text-muted); font-size: 15px; }

        .app-steps { padding: 100px 0; background: var(--bg-white); }
        .steps-wrapper { display: flex; align-items: center; gap: 80px; }
        .steps-content { flex: 1; }
        .step-item { display: flex; gap: 20px; margin-bottom: 30px; }
        .step-num { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 18px; flex-shrink: 0; box-shadow: 0 4px 10px rgba(234,88,12,0.3); }
        .step-text h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .step-text p { color: var(--text-muted); font-size: 15px; }
        .steps-visual { flex: 1; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-lg); }
        
        .news-section { padding: 100px 0; }
        .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .article-card { background: var(--bg-white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-color); transition: 0.3s; display: flex; flex-direction: column; }
        .article-card:hover { box-shadow: var(--shadow); border-color: var(--primary); }
        .article-img { width: 100%; padding-top: 56.25%; background-color: #f3f4f6; position: relative; overflow: hidden; }
        .article-img img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
        .article-card:hover .article-img img { transform: scale(1.05); }
        .article-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .article-meta { display: flex; gap: 12px; font-size: 12px; color: var(--text-light); margin-bottom: 12px; }
        .article-title { font-size: 16px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; color: var(--text-main); }
        .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: 1; }
        .article-tags { display: flex; flex-wrap: wrap; gap: 6px; }
        .article-tags span { background: var(--bg-body); color: var(--text-muted); font-size: 12px; padding: 2px 8px; border-radius: 4px; }

        .cta-section { padding: 80px 0; background: var(--primary); color: #fff; text-align: center; border-radius: 24px; margin: 0 20px 80px; position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; top: -50%; left: -10%; width: 50%; height: 200%; background: rgba(255,255,255,0.1); transform: rotate(30deg); }
        .cta-content { position: relative; z-index: 2; }
        .cta-content h2 { font-size: 36px; font-weight: 800; margin-bottom: 20px; }
        .cta-content p { font-size: 18px; opacity: 0.9; margin-bottom: 40px; }
        .cta-btn { background: #fff; color: var(--primary); padding: 14px 32px; font-size: 18px; border-radius: 8px; font-weight: 700; box-shadow: 0 10px 20px rgba(0,0,0,0.1); display: inline-flex; align-items: center; gap: 8px; }
        .cta-btn:hover { background: #f9fafb; transform: translateY(-2px); }

        @media (max-width: 992px) {
            .desktop-nav, .header-actions { display: none; }
            .mobile-toggle { display: flex; }
            .hero-grid, .steps-wrapper { grid-template-columns: 1fr; gap: 40px; }
            .hero-content { text-align: center; }
            .hero-actions, .hero-tags { justify-content: center; }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 640px) {
            .feature-grid, .news-grid { grid-template-columns: 1fr; }
            .hero-content h1 { font-size: 36px; }
            .cta-section { margin: 0 0 60px; border-radius: 0; padding: 60px 20px; }
            .stats-grid { grid-template-columns: 1fr; }
        }