<style>
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #64748b;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --light: #f8fafc;
            --dark: #1e293b;
            --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        * {
            font-family: 'Inter', sans-serif;
            box-sizing: border-box;
        }
        
        body {
            background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
            min-height: 100vh;
            padding-top: 0 !important;
        }
        
        /* Hide scrollbar for Chrome, Safari and Opera */
        .right-sidebar::-webkit-scrollbar {
            display: none;
        }
        
        /* Hide scrollbar for IE, Edge and Firefox */
        .right-sidebar {
            -ms-overflow-style: none;  /* IE and Edge */
            scrollbar-width: none;  /* Firefox */
        }
        
        /* Header với animation ẩn/hiện */
        .main-header {
            background: white;
            box-shadow: 0 2px 20px rgba(0,0,0,0.08);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transform: translateY(0);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            height: 70px;
            display: flex;
            align-items: center;
        }
        
        .main-header.hidden {
            transform: translateY(-100%);
        }
        
        .main-header.scrolled {
            box-shadow: 0 4px 30px rgba(0,0,0,0.12);
            backdrop-filter: blur(10px);
            background: rgba(255, 255, 255, 0.95);
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
        }
        
        .nav-link {
            color: var(--dark) !important;
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            border-radius: 10px;
            transition: all 0.3s;
        }
        
        .nav-link:hover {
            background: var(--light);
            color: var(--primary) !important;
        }
        
        /* Hero Section */
        .hero-section {
            padding: 6rem 0 4rem;
            background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
            border-radius: 0 0 40px 40px;
            margin-bottom: 2rem;
            position: relative;
        }
        
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        
        .search-container {
            background: white;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 20px 60px rgba(0,0,0,0.1);
            margin-top: 2rem;
            position: relative;
        }
        
        .search-input {
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            padding: 1rem 1.5rem;
            font-size: 1.1rem;
            transition: all 0.3s;
            background: #fafbff;
        }
        
        .search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
            background: white;
        }
        
        .search-btn {
            background: var(--gradient);
            border: none;
            border-radius: 12px;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .search-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
        }
        
        /* Quick Stats */
        .stat-card {
            background: white;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 8px 30px rgba(0,0,0,0.06);
            transition: all 0.3s;
            border: 1px solid rgba(0,0,0,0.03);
            text-align: center;
        }
        
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(37, 99, 235, 0.15);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            margin-bottom: 0.5rem;
        }
        
        /* Company Cards */
        .company-card {
            background: white;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1rem;
            border: 2px solid transparent;
            box-shadow: 0 8px 40px rgba(0,0,0,0.06);
            transition: all 0.3s;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        
        .company-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 0;
            background: var(--gradient);
            transition: height 0.3s;
        }
        
        .company-card:hover::before {
            height: 100%;
        }
        
        .company-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(37, 99, 235, 0.15);
        }
        
        .company-mst {
            background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
            color: white;
            padding: 0.4rem 1.2rem;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
        }
        
        /* Right Sidebar - FIXED với quảng cáo */
        .right-sidebar {
            position: sticky;
            top: 90px;
            height: calc(100vh - 100px);
            overflow-y: auto;
            padding-right: 5px;
        }
        
        .sidebar-card {
            background: white;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 8px 30px rgba(0,0,0,0.06);
            border: 1px solid rgba(0,0,0,0.05);
        }
        
        /* ADVERTISEMENT STYLES */
        .ad-banner {
            background: white;
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            position: relative;
            overflow: hidden;
            border: 2px solid transparent;
            transition: all 0.3s;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
        }
        
        .ad-banner:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.12);
            border-color: var(--primary);
        }
        
        .ad-label {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--warning);
            color: white;
            padding: 0.3rem 1rem;
            border-radius: 15px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 0 3px 10px rgba(245, 158, 11, 0.3);
        }
        
        .ad-title {
            color: var(--dark);
            font-weight: 700;
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        
        .ad-cta {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            color: white;
            border: none;
            padding: 0.6rem 1.5rem;
            border-radius: 10px;
            font-weight: 600;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
        }
        
        .ad-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
            color: white;
        }
        
        .ad-sponsor {
            background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
        }
        
        .ad-premium {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
        }
        
        .ad-featured {
            background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
        }
        
        .ad-cta-sponsor {
            background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
        }
        
        .ad-cta-premium {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
        }
        
        .ad-cta-featured {
            background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
        }
        
        /* Search History */
        .search-history-item {
            padding: 0.8rem;
            border-bottom: 1px solid #f1f5f9;
            transition: all 0.2s;
            cursor: pointer;
            border-radius: 8px;
        }
        
        .search-history-item:hover {
            background: #f8fafc;
        }
        
        .search-history-item:last-child {
            border-bottom: none;
        }
        
        /* Pagination */
        .pagination-custom .page-link {
            border: none;
            color: var(--secondary);
            padding: 0.6rem 1rem;
            margin: 0 0.2rem;
            border-radius: 10px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .pagination-custom .page-link:hover {
            background: var(--primary);
            color: white;
        }
        
        .pagination-custom .active .page-link {
            background: var(--gradient);
            color: white;
        }
        
        /* Responsive */
        @media (max-width: 992px) {
            .right-sidebar {
                position: relative;
                top: 0;
                height: auto;
                margin-top: 2rem;
                overflow-y: visible;
            }
            
            .hero-section {
                padding: 7rem 0 3rem;
            }
        }
        
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            
            .search-container {
                padding: 1.5rem;
            }
            
            .hero-section {
                padding: 5rem 0 2rem;
            }
            
            .main-header {
                height: 60px;
            }
            
            .logo {
                font-size: 1.5rem;
            }
        }
        
        /* Back to Top */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--gradient);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
            cursor: pointer;
            z-index: 999;
            transition: all 0.3s;
            border: none;
            opacity: 0;
            transform: translateY(20px);
        }
        
        .back-to-top.visible {
            display: flex;
            opacity: 1;
            transform: translateY(0);
        }
        
        .back-to-top:hover {
            transform: translateY(-3px);
        }
        
        /* Ads between content */
        .content-ad {
            margin: 2rem 0;
            padding: 1.5rem;
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            border-radius: 16px;
            border-left: 4px solid var(--primary);
        }
        
        /* Floating Search Button (for mobile when header is hidden) */
        .floating-search-btn {
            position: fixed;
            bottom: 90px;
            right: 30px;
            background: var(--gradient);
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            box-shadow: 0 6px 25px rgba(102, 126, 234, 0.4);
            cursor: pointer;
            z-index: 998;
            transition: all 0.3s;
            border: none;
            opacity: 0;
            transform: translateY(20px);
        }
        
        .floating-search-btn.visible {
            display: flex;
            opacity: 1;
            transform: translateY(0);
        }
        
        /* Quick Access Menu khi header ẩn */
        .quick-access-menu {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 10px 0;
            z-index: 999;
            transform: translateY(-100%);
            transition: transform 0.3s ease;
            display: none;
        }
        
        .quick-access-menu.visible {
            transform: translateY(0);
        }
        
        .quick-access-menu .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .quick-access-logo {
            font-weight: 700;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-size: 1.2rem;
        }
        
        .quick-search-input {
            flex: 1;
            margin: 0 15px;
            padding: 8px 15px;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            font-size: 0.9rem;
        }
        
        /* Scroll Progress Bar */
        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: #e2e8f0;
            z-index: 1001;
            display: none;
        }
        
        .scroll-progress-bar {
            height: 100%;
            background: var(--gradient);
            width: 0%;
            transition: width 0.3s ease;
        }
        
        .scroll-progress.visible {
            display: block;
        }
        
        /* Header Show/Hide Animation */
        @keyframes slideDown {
            from {
                transform: translateY(-100%);
            }
            to {
                transform: translateY(0);
            }
        }
        
        @keyframes slideUp {
            from {
                transform: translateY(0);
            }
            to {
                transform: translateY(-100%);
            }
        }
    </style>