:root {
            --primary-color: #1a5fb4;
            --secondary-color: #e6a700;
            --accent-color: #26a269;
            --dark-color: #1c1c1c;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar {
            background-color: rgba(26, 95, 180, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
            padding: 15px 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9) !important;
            font-weight: 500;
            padding: 8px 20px;
            margin: 0 5px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: white !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 95, 180, 0.85), rgba(38, 162, 105, 0.8)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 160px 0 120px;
            margin-top: 76px;
            position: relative;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 25px;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 40px;
            opacity: 0.9;
            max-width: 700px;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: #000;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: #ffc107;
            border-color: #ffc107;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .section-padding {
            padding: 100px 0;
        }
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 15px;
        }
        .section-title:after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 70px;
            height: 4px;
            background-color: var(--primary-color);
        }
        .text-center .section-title:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 40px 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            height: 100%;
            transition: all 0.4s ease;
            border: 1px solid #eee;
            position: relative;
            overflow: hidden;
        }
        .feature-card:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background-color: var(--primary-color);
            transition: width 0.4s ease;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
        }
        .feature-card:hover:before {
            width: 100%;
            opacity: 0.1;
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 25px;
        }
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        .methodology-section {
            background-color: #f9f9f9;
        }
        .methodology-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 40px;
        }
        .methodology-number {
            background-color: var(--primary-color);
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-right: 25px;
        }
        .team-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            height: 100%;
        }
        .team-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
        }
        .team-img {
            height: 280px;
            width: 100%;
            object-fit: cover;
        }
        .team-info {
            padding: 25px;
        }
        .team-name {
            font-size: 1.4rem;
            margin-bottom: 5px;
        }
        .team-role {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 15px;
        }
        .prediction-table {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        .table thead th {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 18px 20px;
            font-weight: 600;
        }
        .table tbody tr {
            transition: all 0.3s ease;
        }
        .table tbody tr:hover {
            background-color: rgba(26, 95, 180, 0.05);
        }
        .table tbody td {
            padding: 18px 20px;
            border-color: #eee;
            vertical-align: middle;
        }
        .success-badge {
            background-color: rgba(38, 162, 105, 0.15);
            color: var(--accent-color);
            padding: 5px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .warning-badge {
            background-color: rgba(230, 167, 0, 0.15);
            color: #b08500;
            padding: 5px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .contact-form {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        .form-control, .form-select {
            padding: 14px 18px;
            border: 1px solid #ddd;
            border-radius: 8px;
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 95, 180, 0.15);
        }
        .contact-info {
            background-color: var(--primary-color);
            color: white;
            border-radius: 12px;
            padding: 40px;
            height: 100%;
        }
        .contact-info h3 {
            color: white;
            margin-bottom: 30px;
        }
        .contact-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 25px;
        }
        .contact-icon {
            font-size: 1.3rem;
            width: 40px;
            color: var(--secondary-color);
        }
        .friendlink {
            background-color: #f9f9f9;
            padding: 70px 0;
        }
        .flink {
            display: inline-block;
            background: white;
            color: var(--dark-color);
            padding: 12px 25px;
            margin: 8px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 500;
            border: 1px solid #eee;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
            border-color: var(--primary-color);
        }
        footer {
            background-color: #1a1a1a;
            color: #aaa;
            padding: 70px 0 20px;
        }
        .footer-title {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            display: block;
            margin-bottom: 10px;
            transition: all 0.3s ease;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        .copyright {
            border-top: 1px solid #333;
            padding-top: 20px;
            margin-top: 50px;
            text-align: center;
            font-size: 0.9rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            color: #000;
            transform: translateY(-5px);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 60px 0;
            }
            .section-title {
                font-size: 2rem;
            }
            .contact-form {
                padding: 25px;
            }
            .contact-info {
                padding: 25px;
                margin-top: 30px;
            }
        }