:root { --primary: rgb(219,39,119); --primary-hover: rgb(190, 20, 90); --primary-light: rgba(219,39,119, 0.1); --text-main: #1f2937; --text-muted: #6b7280; --bg-body: #ffffff; --bg-gray: #f9fafb; --border-color: #e5e7eb; --radius: 8px; --container-width: 1200px; }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: sans-serif; color: var(--text-main); background: var(--bg-body); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        ul, li { list-style: none; }
        img { max-width: 100%; height: auto; }
        .container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
        
        
        .header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 36px; 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; }
        .desktop-nav { display: flex; gap: 30px; align-items: center; }
        .desktop-nav a { font-size: 16px; font-weight: 500; position: relative; padding: 5px 0; }
        .desktop-nav a:hover { color: var(--primary); }
        .btn-download-sm { background: var(--primary); color: #fff !important; padding: 8px 20px; border-radius: 20px; font-weight: bold; }
        .btn-download-sm:hover { background: var(--primary-hover); }
        .menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 10px; }
        .menu-toggle span { width: 24px; height: 2px; background: var(--text-main); transition: 0.3s; }
        
        .mobile-drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998; opacity: 0; visibility: hidden; transition: 0.3s; }
        .mobile-drawer-overlay.active { opacity: 1; visibility: visible; }
        .mobile-drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100vh; background: #fff; z-index: 999; transition: transform 0.3s; display: flex; flex-direction: column; }
        .mobile-drawer.active { transform: translateX(300px); }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
        .drawer-close { font-size: 24px; cursor: pointer; color: var(--text-muted); }
        .drawer-body { padding: 20px; overflow-y: auto; flex: 1; }
        .drawer-nav li { margin-bottom: 15px; border-bottom: 1px dashed var(--border-color); padding-bottom: 10px; }
        .drawer-nav a { display: block; font-size: 16px; font-weight: 500; }

        
        .about-hero { padding: 80px 0; background: #111; color: #fff; text-align: center; position: relative; overflow: hidden; }
        .about-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(45deg, var(--primary) 0%, transparent 100%); opacity: 0.3; }
        .about-hero h1 { font-size: 42px; position: relative; z-index: 1; margin-bottom: 15px; }
        .about-hero p { font-size: 18px; color: #ccc; max-width: 600px; margin: 0 auto; position: relative; z-index: 1; }

        .about-section { padding: 80px 0; border-bottom: 1px solid var(--border-color); }
        .about-section:nth-child(even) { background: var(--bg-gray); }
        .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
        .about-text h2 { font-size: 32px; color: #111; margin-bottom: 20px; position: relative; padding-bottom: 15px; }
        .about-text h2::after { content: ''; position: absolute; bottom: 0; left: 0; width: 50px; height: 3px; background: var(--primary); }
        .about-text p { font-size: 16px; color: var(--text-muted); margin-bottom: 15px; line-height: 1.8; }
        .about-visual { background: #eee; border-radius: 20px; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; font-size: 20px; color: #999; box-shadow: 0 10px 30px rgba(0,0,0,0.05); overflow: hidden;}
        
        .timeline { display: flex; flex-direction: column; gap: 30px; margin-top: 40px; }
        .time-item { display: flex; gap: 20px; }
        .time-year { font-weight: bold; color: var(--primary); font-size: 20px; width: 80px; flex-shrink: 0; }
        .time-content { background: #fff; padding: 20px; border-radius: var(--radius); box-shadow: 0 2px 10px rgba(0,0,0,0.03); border: 1px solid var(--border-color); flex: 1;}
        .time-content h4 { margin-bottom: 5px; font-size: 18px; }

        
        .footer { background: #111827; color: #d1d5db; padding: 60px 0 20px; margin-top: auto; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo span { color: #fff; }
        .footer-title { color: #fff; font-size: 18px; font-weight: bold; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
        .footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 2px; background: var(--primary); }
        .footer-links li { margin-bottom: 12px; }
        .footer-bottom { border-top: 1px solid #374151; padding-top: 20px; text-align: center; font-size: 14px; color: #6b7280; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;}

        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .menu-toggle { display: flex; }
            .about-grid { grid-template-columns: 1fr; }
            .about-grid.reverse { direction: rtl; }
            .about-grid.reverse > * { direction: ltr; }
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-title::after { left: 50%; transform: translateX(-50%); }
            .footer-bottom { flex-direction: column; justify-content: center; }
        }