:root { --primary: rgb(0,199,190); --primary-dark: #00a8a1; --primary-light: #e6f9f8; --text-main: #1a1f24; --text-muted: #6b7280; --bg-body: #f8fafc; --bg-white: #ffffff; --border-color: #e2e8f0; --shadow-sm: 0 1px 3px rgba(0,0,0,0.05); --shadow-hover: 0 10px 25px -5px rgba(0,199,190,0.15); --transition: all 0.3s ease; }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
        h1, h2, h3 { color: var(--text-main); font-weight: 700; }
        .site-header { background: var(--bg-white); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 44px; width: auto; max-width: 180px; 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; }
        .desktop-nav ul { display: flex; gap: 30px; }
        .desktop-nav a { font-weight: 500; font-size: 16px; color: var(--text-main); padding: 10px 0; position: relative; }
        .desktop-nav a:hover { color: var(--primary); }
        .mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--text-main); }
        .mobile-drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; z-index: 1000; transition: var(--transition); }
        .mobile-drawer { position: fixed; top: 0; left: -320px; width: 320px; max-width: 85vw; height: 100vh; background: var(--bg-white); z-index: 1001; transition: var(--transition); display: flex; flex-direction: column; }
        .drawer-active .mobile-drawer-overlay { opacity: 1; visibility: visible; }
        .drawer-active .mobile-drawer { left: 0; }
        .drawer-header { display: flex; justify-content: space-between; align-items: center; padding: 20px; border-bottom: 1px solid var(--border-color); }
        .drawer-close { background: var(--primary-light); border: none; width: 36px; height: 36px; border-radius: 50%; color: var(--primary); }
        .drawer-body { padding: 20px; overflow-y: auto; }
        .mobile-nav li { border-bottom: 1px solid var(--border-color); }
        .mobile-nav a { display: block; padding: 15px 0; font-size: 16px; font-weight: 500; }
        .site-footer { background: #1a1f24; color: #a0aec0; padding: 60px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
        .footer-logo span { color: #fff; }
        .footer-links ul { display: flex; flex-direction: column; gap: 12px; }
        .footer-links a:hover { color: var(--primary); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; }

        
        .about-hero { background: var(--primary-light); padding: 80px 0; text-align: center; margin-bottom: 60px; }
        .about-hero h1 { font-size: 42px; margin-bottom: 20px; color: var(--primary-dark); }
        .about-hero p { font-size: 18px; color: var(--text-muted); max-width: 700px; margin: 0 auto; }
        
        .content-block { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 80px; }
        .content-block.reverse { direction: rtl; }
        .content-block.reverse > * { direction: ltr; }
        .block-text h2 { font-size: 32px; margin-bottom: 24px; position: relative; padding-left: 20px; }
        .block-text h2::before { content: ''; position: absolute; left: 0; top: 5px; bottom: 5px; width: 6px; background: var(--primary); border-radius: 3px; }
        .block-text p { font-size: 16px; color: var(--text-muted); margin-bottom: 20px; }
        .block-img img { border-radius: 16px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

        .mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 80px; }
        .mission-card { background: var(--bg-white); padding: 40px 30px; border-radius: 12px; text-align: center; border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); }
        .mission-icon { font-size: 40px; font-weight: 900; color: var(--primary-light); -webkit-text-stroke: 2px var(--primary); margin-bottom: 20px; display: inline-block; }
        .mission-card h3 { font-size: 20px; margin-bottom: 15px; }
        .mission-card p { color: var(--text-muted); font-size: 15px; }

        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu-toggle { display: block; }
            .content-block { grid-template-columns: 1fr; gap: 30px; }
            .mission-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
        }