:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-color: #f8fafc;
            --dark-color: #0f172a;
            --gray-color: #64748b;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
            color: white;
            padding: 6rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB2aWV3Qm94PSIwIDAgMTIwMCA2MDAiIHByZXNlcnZlQXNwZWN0UmF0aW89Im5vbmUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGcgZmlsbD0ibm9uZSIgZmlsbC1ydWxlPSJldmVub2RkIj48cGF0aCBkPSJNMTIwMCAwSDZ2NjAwaDEyMDBWMHoiLz48cGF0aCBmaWxsPSJyZ2JhKDI1NSwgMjU1LCAyNTUsIDAuMDUpIiBkPSJNLTItMmgxMjA0djYwNEgtMnoiLz48L2c+PC9zdmc+');
            opacity: 0.1;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
        }
        .prediction-card {
            border-left: 4px solid var(--secondary-color);
            background: var(--light-color);
            transition: all 0.3s ease;
        }
        .prediction-card:hover {
            background: #fff;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            line-height: 1;
        }
        .footer {
            background: var(--dark-color);
            color: #cbd5e1;
            padding-top: 4rem;
        }
        .footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
        }
        .friendlink a.flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background: var(--light-color);
            border-radius: 30px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #e2e8f0;
        }
        .friendlink a.flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: #1e40af;
            border-color: #1e40af;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(30, 58, 138, 0.2);
        }
        .btn-danger {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.75rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-danger:hover {
            background-color: #b91c1c;
            border-color: #b91c1c;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(220, 38, 38, 0.2);
        }
        .match-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent-color);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .analysis-process {
            position: relative;
            padding-left: 30px;
        }
        .analysis-process::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-color);
            border-radius: 1.5px;
        }
        .process-step {
            position: relative;
            margin-bottom: 2.5rem;
        }
        .process-step::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--primary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--primary-color);
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            padding: 0.5rem 1.2rem;
            position: relative;
        }
        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            transition: all 0.3s;
            transform: translateX(-50%);
        }
        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            width: 70%;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0;
                text-align: center;
            }
            .display-4 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
        }
        .team-img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .testimonial-card {
            border-radius: 15px;
            border: 1px solid #e2e8f0;
            transition: transform 0.3s;
        }
        .testimonial-card:hover {
            transform: translateY(-5px);
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-right: 1rem;
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(30, 58, 138, 0.05);
            color: var(--primary-color);
            font-weight: 600;
        }
        .blog-card {
            transition: transform 0.3s;
            border-radius: 12px;
            overflow: hidden;
        }
        .blog-card:hover {
            transform: translateY(-10px);
        }
        .blog-card img {
            height: 200px;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .blog-card:hover img {
            transform: scale(1.05);
        }