:root {
            --primary-color: #8b0000;
            --secondary-color: #f8f9fa;
            --accent-color: #d4af37;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background-color: #fefefe;
            color: #333;
            line-height: 1.8;
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1519699047748-de8e457a634e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
            text-align: center;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .section-title {
            color: var(--primary-color);
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 10px;
            margin-bottom: 30px;
            display: inline-block;
        }
        .card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: transform 0.4s, box-shadow 0.4s;
            box-shadow: 0 6px 12px rgba(0,0,0,0.1);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.2);
        }
        .card-img-top {
            height: 300px;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .btn-custom {
            background-color: var(--primary-color);
            color: white;
            border-radius: 30px;
            padding: 10px 25px;
            transition: background-color 0.3s, transform 0.3s;
        }
        .btn-custom:hover {
            background-color: #a00000;
            color: white;
            transform: scale(1.05);
        }
        .video-container {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            border-radius: 15px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.2);
        }
        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        .flink {
            display: inline-block;
            background: var(--secondary-color);
            padding: 10px 20px;
            margin: 10px;
            border-radius: 30px;
            color: var(--primary-color);
            text-decoration: none;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--accent-color);
            transform: translateY(-3px);
        }
        .friendlink {
            background: linear-gradient(135deg, #f9f9f9, #eaeaea);
            padding: 40px 0;
        }
        footer {
            background-color: #222;
            color: #ccc;
        }
        footer a {
            color: var(--accent-color);
            text-decoration: none;
        }
        footer a:hover {
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .card-img-top {
                height: 200px;
            }
        }
        .content-text {
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            color: var(--primary-color);
            font-weight: bold;
        }
        .badge-keyword {
            background-color: var(--accent-color);
            color: #333;
            margin: 2px;
            font-size: 0.9rem;
        }
        .icon-feature {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }