:root {
            --primary: rgb(234,179,8);
            --primary-hover: #ca8a04;
            --primary-light: rgba(234,179,8,0.1);
            --text-main: #18181b;
            --text-muted: #52525b;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --dark-bg: #0f172a;
            --border-color: #e2e8f0;
            --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);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; }
        body { background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul, li { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        
        
        h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; }
        
        
        .header { background: var(--dark-bg); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow); }
        .header-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; 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: #ffffff; white-space: nowrap; }
        
        
        .nav-desktop { display: none; }
        .nav-desktop ul { display: flex; gap: 30px; align-items: center; }
        .nav-desktop a { color: #cbd5e1; font-weight: 500; font-size: 15px; }
        .nav-desktop a:hover { color: var(--primary); }
        
        
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 6px; font-weight: 600; font-size: 15px; cursor: pointer; transition: all 0.3s; }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(234,179,8,0.4); }
        .btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
        .btn-outline { border: 1px solid var(--primary); color: var(--primary); }
        .btn-outline:hover { background: var(--primary); color: #fff; }
        
        
        .menu-btn { display: block; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }
        .drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); opacity: 0; visibility: hidden; transition: 0.3s; z-index: 999; }
        .mobile-drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: #fff; box-shadow: var(--shadow-lg); transition: 0.3s; z-index: 1000; display: flex; flex-direction: column; }
        .drawer-active .drawer-overlay { opacity: 1; visibility: visible; }
        .drawer-active .mobile-drawer { left: 0; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
        .drawer-header .logo span { color: var(--text-main); }
        .close-drawer { background: none; border: none; font-size: 24px; color: var(--text-muted); cursor: pointer; }
        .drawer-nav { padding: 20px; flex: 1; overflow-y: auto; }
        .drawer-nav li { margin-bottom: 15px; }
        .drawer-nav a { display: block; font-size: 16px; font-weight: 500; color: var(--text-main); padding: 8px 0; }
        
        @media(min-width: 768px) {
            .nav-desktop { display: block; }
            .menu-btn { display: none; }
        }

        
        .hero { background: linear-gradient(to right, #0f172a, #1e293b); padding: 80px 20px; overflow: hidden; position: relative; }
        .hero::after { content: ''; position: absolute; right: 0; top: 0; width: 50%; height: 100%; background: radial-gradient(circle at center, rgba(234,179,8,0.1) 0%, transparent 70%); pointer-events: none; }
        .hero-container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: column; gap: 40px; align-items: center; position: relative; z-index: 1; }
        .hero-content { text-align: center; color: #fff; max-width: 800px; }
        .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; border: 1px solid rgba(234,179,8,0.2); }
        .hero h1 { font-size: 42px; margin-bottom: 20px; }
        .hero h1 span { color: var(--primary); }
        .hero p { font-size: 18px; color: #94a3b8; margin-bottom: 30px; }
        .hero-actions { display: flex; gap: 15px; justify-content: center; }
        .hero-visual { width: 100%; max-width: 700px; position: relative; }
        .hero-visual img { border-radius: 12px; box-shadow: 0 20px 40px rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.1); }
        
        @media(min-width: 992px) {
            .hero-container { flex-direction: row; text-align: left; }
            .hero-content { text-align: left; flex: 1; }
            .hero-actions { justify-content: flex-start; }
            .hero-visual { flex: 1; }
        }

        
        .stats { background: #fff; border-bottom: 1px solid var(--border-color); }
        .stats-container { max-width: 1200px; margin: 0 auto; padding: 30px 20px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; text-align: center; }
        .stat-item h4 { font-size: 32px; color: var(--primary); margin-bottom: 5px; }
        .stat-item p { font-size: 14px; color: var(--text-muted); }
        @media(min-width: 768px) { .stats-container { grid-template-columns: repeat(4, 1fr); } }

        
        .features { padding: 80px 20px; }
        .section-head { text-align: center; margin-bottom: 50px; }
        .section-head h2 { font-size: 32px; margin-bottom: 15px; color: var(--text-main); }
        .section-head p { color: var(--text-muted); max-width: 600px; margin: 0 auto; }
        .feature-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 30px; }
        .feature-card { background: var(--bg-card); padding: 30px; border-radius: 12px; box-shadow: var(--shadow); transition: all 0.3s; border: 1px solid transparent; }
        .feature-card:hover { transform: translateY(-5px); border-color: var(--primary-light); box-shadow: var(--shadow-lg); }
        .feature-icon { width: 50px; height: 50px; background: var(--primary-light); color: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: bold; margin-bottom: 20px; }
        .feature-card h3 { font-size: 20px; margin-bottom: 15px; }
        .feature-card p { color: var(--text-muted); font-size: 15px; }
        @media(min-width: 768px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
        @media(min-width: 1024px) { .feature-grid { grid-template-columns: repeat(4, 1fr); } }

        
        .platform { padding: 80px 20px; background: #fff; }
        .platform-container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: column; gap: 40px; align-items: center; }
        .platform-img { flex: 1; border-radius: 12px; overflow: hidden; }
        .platform-text { flex: 1; }
        .platform-text h2 { font-size: 32px; margin-bottom: 20px; }
        .platform-list { margin-top: 30px; }
        .platform-list li { margin-bottom: 20px; display: flex; align-items: flex-start; gap: 15px; }
        .platform-list .num { width: 30px; height: 30px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; }
        @media(min-width: 992px) { .platform-container { flex-direction: row; } }

        
        .articles { padding: 80px 20px; background: var(--bg-body); }
        .article-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 30px; }
        .article-card { background: var(--bg-card); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); transition: 0.3s; display: flex; flex-direction: column; }
        .article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
        .article-thumb { width: 100%; height: 200px; object-fit: cover; border-bottom: 1px solid var(--border-color); }
        .article-info { padding: 20px; flex: 1; display: flex; flex-direction: column; }
        .article-info h3 { font-size: 18px; margin-bottom: 10px; line-height: 1.4; }
        .article-info h3 a { color: var(--text-main); }
        .article-info h3 a:hover { color: var(--primary); }
        .article-info p { color: var(--text-muted); font-size: 14px; margin-bottom: 15px; flex: 1; }
        .article-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #94a3b8; padding-top: 15px; border-top: 1px solid var(--border-color); }
        .article-tags { color: var(--primary); }
        @media(min-width: 768px) { .article-grid { grid-template-columns: repeat(2, 1fr); } }
        @media(min-width: 1024px) { .article-grid { grid-template-columns: repeat(3, 1fr); } }

        
        .cta { padding: 80px 20px; background: linear-gradient(135deg, var(--primary), #b45309); text-align: center; color: #fff; }
        .cta h2 { font-size: 36px; margin-bottom: 20px; }
        .cta p { font-size: 18px; margin-bottom: 30px; opacity: 0.9; }

        
        .footer { background: var(--dark-bg); color: #cbd5e1; padding: 60px 20px 20px; }
        .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { margin-top: 20px; font-size: 14px; line-height: 1.8; color: #94a3b8; }
        .footer-links h4 { color: #fff; margin-bottom: 20px; font-size: 16px; }
        .footer-links ul li { margin-bottom: 10px; }
        .footer-links a { color: #94a3b8; font-size: 14px; }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 13px; color: #64748b; }
        .footer-bottom a { color: #64748b; margin: 0 10px; }
        .footer-bottom a:hover { color: #fff; }
        @media(min-width: 768px) { .footer-container { grid-template-columns: 2fr 1fr 1fr; } }