body {
        font-family: 'Noto Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
        background: #f8fafc;
        color: #333;
        margin: 0;
        padding: 0;
        line-height: 1.7;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }
    .card {
        background: white;
        border-radius: 16px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        padding: 40px;
        margin-bottom: 30px;
    }
    h1 {
        font-size: 2.8rem;
        font-weight: 700;
        color: #1e293b;
        margin: 0 0 16px 0;
        text-align: center;
    }
    h2.keyword {
        font-size: 1.6rem;
        font-weight: 500;
        color: #64748b;
        margin: 0 0 40px 0;
        text-align: center;
        opacity: 0.9;
    }
    .media-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 30px;
        margin: 40px 0;
    }
    .media-item {
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }
    video, img {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 12px;
    }
    .links-container {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: center;
        margin-top: 20px;
        padding: 20px 0;
    }
    .nav-btn {
        background: #3b82f6;
        color: white;
        padding: 12px 28px;
        border-radius: 8px;
        text-decoration: none;
        font-weight: 500;
        font-size: 1.1rem;
        transition: all 0.3s;
    }
    .nav-btn:hover {
        background: #2563eb;
        transform: translateY(-2px);
    }
    .link-btn {
        background: #e2e8f0;
        color: #334155;
        padding: 10px 18px;
        border-radius: 8px;
        text-decoration: none;
        font-size: 0.95rem;
        transition: all 0.3s;
    }
    .link-btn:hover {
        background: #cbd5e1;
        transform: translateY(-2px);
    }
    .external {
        background: #fef3c7;
        color: #92400e;
    }
    .external:hover {
        background: #fde68a;
    }
    @media (max-width: 768px) {
        .card { padding: 20px; border-radius: 12px; }
        h1 { font-size: 2.2rem; }
        h2.keyword { font-size: 1.4rem; }
        .media-grid { grid-template-columns: 1fr; }
        .links-container { flex-direction: column; align-items: center; }
        .nav-btn, .link-btn { width: 100%; max-width: 300px; text-align: center; }
    }