:root {
            --primary: rgb(94,92,230);
            --primary-hover: rgb(75,73,190);
            --primary-light: rgba(94,92,230,0.1);
            --text-main: #1a202c;
            --text-sub: #4a5568;
            --text-light: #a0aec0;
            --bg-body: #f7fafc;
            --bg-card: #ffffff;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.05);
            --radius: 12px;
        }
        * { 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; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; }
        
        
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        
        .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(--text-main); white-space: nowrap; letter-spacing: 0.5px; }

        
        .site-header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-sm); }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
        .desktop-nav { display: flex; gap: 30px; align-items: center; }
        .desktop-nav a { font-weight: 500; color: var(--text-sub); }
        .desktop-nav a:hover { color: var(--primary); }
        .header-action { display: flex; align-items: center; gap: 15px; }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; font-weight: 600; cursor: pointer; transition: all 0.3s; }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 15px rgba(94,92,230,0.3); }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); color:#fff; }
        .btn-outline { border: 2px solid var(--primary); color: var(--primary); }
        .btn-outline:hover { background: var(--primary-light); }
        .menu-toggle { display: none; cursor: pointer; color: var(--text-main); }

        
        .drawer-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; transition: 0.3s; z-index: 998; }
        .drawer-mask.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: #fff; z-index: 999; transition: 0.3s; display: flex; flex-direction: column; box-shadow: 2px 0 15px rgba(0,0,0,0.1); }
        .drawer.active { left: 0; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { font-size: 28px; color: var(--text-sub); cursor: pointer; line-height: 1; }
        .drawer-nav { padding: 20px; overflow-y: auto; flex: 1; }
        .drawer-nav a { display: block; padding: 15px 0; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--border); color: var(--text-main); }
        .drawer-nav a:hover { color: var(--primary); padding-left: 10px; }

        
        .hero { padding: 80px 0; background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 100%); overflow: hidden; }
        .hero-inner { display: flex; align-items: center; gap: 60px; }
        .hero-content { flex: 1; }
        .hero-tag { display: inline-block; padding: 6px 16px; background: var(--primary-light); color: var(--primary); border-radius: 20px; font-size: 14px; font-weight: 600; margin-bottom: 20px; }
        .hero-title { font-size: 48px; font-weight: 800; line-height: 1.2; margin-bottom: 24px; color: var(--text-main); }
        .hero-desc { font-size: 18px; color: var(--text-sub); margin-bottom: 40px; max-width: 500px; }
        .hero-actions { display: flex; gap: 20px; }
        .hero-visual { flex: 1; position: relative; }
        .hero-img-wrap { position: relative; z-index: 2; border-radius: var(--radius); overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
        .hero-bg-shape { position: absolute; top: -10%; right: -10%; width: 120%; height: 120%; background: var(--primary); opacity: 0.05; border-radius: 50%; z-index: 1; }

        
        .features { padding: 80px 0; background: #fff; }
        .section-header { text-align: center; margin-bottom: 50px; }
        .section-title { font-size: 32px; font-weight: 700; color: var(--text-main); margin-bottom: 15px; }
        .section-desc { font-size: 16px; color: var(--text-sub); max-width: 600px; margin: 0 auto; }
        .feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
        .feature-card { padding: 40px 30px; background: var(--bg-body); border-radius: var(--radius); text-align: center; transition: 0.3s; border: 1px solid transparent; }
        .feature-card:hover { transform: translateY(-5px); background: #fff; border-color: var(--primary-light); box-shadow: var(--shadow-md); }
        .feature-icon { width: 64px; height: 64px; background: var(--primary-light); border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; color: var(--primary); }
        .feature-card h3 { font-size: 20px; margin-bottom: 15px; }
        .feature-card p { font-size: 14px; color: var(--text-sub); }

        
        .articles { padding: 80px 0; background: var(--bg-body); }
        .article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .article-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: 0.3s; display: flex; flex-direction: column; }
        .article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
        .article-img { display: block; width: 100%; aspect-ratio: 16/10; overflow: hidden; }
        .article-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
        .article-card:hover .article-img img { transform: scale(1.05); }
        .article-content { padding: 25px; flex: 1; display: flex; flex-direction: column; }
        .article-meta { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-light); margin-bottom: 12px; }
        .article-title { font-size: 18px; font-weight: 600; line-height: 1.4; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .article-title a { color: var(--text-main); }
        .article-title a:hover { color: var(--primary); }
        .article-summary { font-size: 14px; color: var(--text-sub); margin-bottom: 20px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
        .article-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 15px; border-top: 1px solid var(--border); }
        .article-tags { display: flex; gap: 8px; font-size: 12px; color: var(--primary); }

        
        .custom-block { padding: 40px 0; }

        
        .cta { padding: 80px 0; background: var(--primary); color: #fff; text-align: center; }
        .cta-inner { max-width: 800px; margin: 0 auto; }
        .cta h2 { font-size: 36px; margin-bottom: 20px; }
        .cta p { font-size: 18px; opacity: 0.9; margin-bottom: 40px; }
        .cta .btn-primary { background: #fff; color: var(--primary); box-shadow: none; }
        .cta .btn-primary:hover { background: #f8f9fa; }

        
        .site-footer { background: #1a202c; color: #a0aec0; padding: 80px 0 30px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
        .footer-logo span { color: #fff; }
        .footer-brand p { margin-top: 20px; font-size: 14px; line-height: 1.8; max-width: 300px; }
        .footer-links h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; }
        .footer-links ul li { margin-bottom: 12px; }
        .footer-links a:hover { color: #fff; padding-left: 5px; }
        .footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 14px; }

        @media (max-width: 992px) {
            .hero-inner { flex-direction: column; text-align: center; }
            .hero-actions { justify-content: center; }
            .hero-desc { margin: 0 auto 40px; }
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
            .article-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
            .footer-brand p { margin: 20px auto 0; }
        }
        @media (max-width: 768px) {
            .desktop-nav, .header-action .btn { display: none; }
            .menu-toggle { display: block; }
            .hero-title { font-size: 36px; }
            .feature-grid, .article-grid { grid-template-columns: 1fr; }
        }