.container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1 {
            font-size: clamp(28px, 5vw, 42px);
            font-weight: 900;
            margin-bottom: 16px;
            color: white;
        }

        .subtitle {
            font-size: clamp(15px, 3vw, 18px);
            opacity: 0.95;
            color: white;
        }

        .content {
            background: white;
            padding: 60px 20px;
        }

        h2 {
            font-size: clamp(20px, 4vw, 26px);
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 16px;
            color: #2563eb;
        }

        h2:first-child {
            margin-top: 0;
        }

        p {
            margin-bottom: 16px;
            line-height: 1.9;
            color: #495057;
        }

        ul,
        ol {
            margin-left: 24px;
            margin-bottom: 24px;
        }

        li {
            margin-bottom: 12px;
            line-height: 1.8;
            color: #495057;
        }

        .update-date {
            text-align: right;
            color: #6c757d;
            font-size: 14px;
            margin-bottom: 32px;
        }

        .back-link {
            display: inline-block;
            background: linear-gradient(135deg, #2563eb 0%, #10b981 100%);
            color: white;
            padding: 12px 32px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            margin-top: 40px;
            transition: all 0.3s ease;
        }

        .back-link:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }