:root{--primary-color:rgb(245,158,11);--primary-light:rgba(245,158,11,0.1);--primary-hover:rgb(217,119,6);--text-main:#1f2937;--text-secondary:#4b5563;--text-light:#9ca3af;--bg-body:#f3f4f6;--bg-card:#ffffff;--border-color:#e5e7eb;--border-radius:8px;--transition:all 0.3s ease}
        *{box-sizing:border-box;margin:0;padding:0}
        body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text-main);background:var(--bg-body);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:1200px;margin:0 auto;padding:0 20px}
        
        header{background:var(--bg-card);box-shadow:0 2px 10px rgba(0,0,0,0.05);position:sticky;top:0;z-index:100}
        .header-inner{display:flex;justify-content:space-between;align-items:center;height:80px}
        .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}
        .nav-desktop{display:none}
        @media(min-width:992px){.nav-desktop{display:flex;gap:30px;align-items:center}.nav-desktop a{font-weight:500;position:relative;padding:5px 0}.nav-desktop a:hover{color:var(--primary-color)}.nav-desktop a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary-color);transition:var(--transition)}.nav-desktop a:hover::after{width:100%}}
        .btn-menu{display:block;background:none;border:none;font-size:24px;color:var(--text-main);cursor:pointer}
        @media(min-width:992px){.btn-menu{display:none}}
        .drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:998;opacity:0;visibility:hidden;transition:var(--transition)}
        .drawer-nav{position:fixed;top:0;left:-300px;width:280px;height:100%;background:var(--bg-card);z-index:999;transition:var(--transition);display:flex;flex-direction:column;box-shadow:2px 0 10px rgba(0,0,0,0.1)}
        .drawer-active .drawer-overlay{opacity:1;visibility:visible}.drawer-active .drawer-nav{left:0}
        .drawer-header{padding:20px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}
        .drawer-close{background:none;border:none;font-size:24px;color:var(--text-light);cursor:pointer}
        .drawer-body{padding:20px;overflow-y:auto;flex-grow:1}.drawer-body a{display:block;padding:12px 0;border-bottom:1px solid var(--border-color);font-weight:500}

        .page-header { background: url('https://via.placeholder.com/1920x400/111827/ffffff?text=About+Us') center/cover no-repeat; padding: 80px 0; text-align: center; color: #fff; position: relative; margin-bottom: 60px; }
        .page-header::before { content: ''; position: absolute; inset: 0; background: rgba(17,24,39,0.8); }
        .page-header .container { position: relative; z-index: 1; }
        .page-title { font-size: 2.5rem; margin-bottom: 15px; }
        .page-desc { font-size: 1.1rem; opacity: 0.9; max-width: 700px; margin: 0 auto; }

        .about-section { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 80px; align-items: center; }
        @media(min-width: 992px) { .about-section { grid-template-columns: 1fr 1fr; } }
        .about-text h2 { font-size: 2rem; color: var(--text-main); 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-color); }
        .about-text p { color: var(--text-secondary); margin-bottom: 15px; font-size: 1.05rem; }
        .about-img img { border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }

        .core-values { background: var(--bg-card); padding: 60px 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); margin-bottom: 80px; }
        .values-header { text-align: center; margin-bottom: 40px; }
        .values-header h2 { font-size: 2rem; color: var(--text-main); margin-bottom: 10px; }
        .values-grid { display: grid; grid-template-columns: 1fr; gap: 30px; }
        @media(min-width: 768px) { .values-grid { grid-template-columns: repeat(3, 1fr); } }
        .value-card { text-align: center; padding: 30px; background: var(--bg-body); border-radius: var(--border-radius); }
        .value-num { font-size: 3rem; font-weight: 900; color: var(--primary-light); margin-bottom: -20px; font-family: monospace; }
        .value-card h3 { color: var(--text-main); font-size: 1.25rem; margin-bottom: 15px; position: relative; z-index: 1; }
        .value-card p { color: var(--text-secondary); font-size: 0.95rem; }

        footer{background:#111827;color:#f3f4f6;padding:60px 0 20px}.footer-grid{display:grid;grid-template-columns:1fr;gap:40px;margin-bottom:40px}@media(min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}.footer-brand .logo span{color:#fff}.footer-brand p{color:#9ca3af;margin-top:15px;max-width:300px;font-size:0.95rem}.footer-title{font-size:1.2rem;font-weight:600;margin-bottom:20px;color:#fff;position:relative;padding-bottom:10px}.footer-title::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--primary-color)}.footer-links li{margin-bottom:10px}.footer-links a{color:#9ca3af;transition:var(--transition)}.footer-links a:hover{color:var(--primary-color)}.footer-bottom{padding-top:20px;border-top:1px solid #374151;text-align:center;color:#6b7280;font-size:0.9rem;display:flex;flex-direction:column;gap:10px}@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between}}.footer-bottom-links a{margin-left:15px;color:#9ca3af}.footer-bottom-links a:hover{color:var(--primary-color)}