/* protocol.html style block 1 */
:root {
            --bg-body: #ffffff;
            --bg-nav: rgba(255, 255, 255, 0.85);
            --text-primary: #18181b;
            --text-secondary: #52525b;
            --text-tertiary: #71717a;
            --accent-primary: #2563eb;
            --border-light: #e4e4e7;
            --border-hover: #d4d4d8;
            --nav-height: 80px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; outline: none; -webkit-font-smoothing: antialiased; }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background-color: var(--bg-body);
            color: var(--text-primary);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            font-size: 15px;
        }

        .top-navbar {
            height: var(--nav-height);
            backdrop-filter: blur(12px);
            background-color: var(--bg-nav);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            flex-shrink: 0;
            z-index: 100;
            position: sticky;
            top: 0;
            border-bottom: 1px solid var(--border-light);
        }

        .nav-logo {
            display: flex; align-items: center; gap: 10px;
            text-decoration: none; color: var(--text-primary);
            font-weight: 800; font-size: 18px; letter-spacing: -0.03em;
        }

        .beta-tag {
            font-size: 10px; 
            padding: 1px 6px; border-radius: 999px; font-weight: 700; margin-left: 4px;
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            background: rgba(0,0,0,0.02);
        }

        .nav-right { display: flex; align-items: center; gap: 16px; }

        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 6px;
            height: 32px; padding: 0 14px; border-radius: 9999px;
            font-size: 13px; font-weight: 500; cursor: pointer;
            border: 1px solid var(--border-light); text-decoration: none;
            color: var(--text-secondary);
            transition: all 0.2s;
        }

        .btn:hover {
            background: rgba(0,0,0,0.05);
            color: var(--text-primary);
            border-color: var(--border-hover);
        }

        .privacy-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 60px 24px 100px;
        }

        h1 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--text-primary);
        }

        .effective-date {
            color: var(--text-secondary);
            margin-bottom: 48px;
            font-size: 14px;
        }

        .policy-section {
            margin-bottom: 40px;
        }

        h2 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 10px;
        }
        
        h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
            margin-top: 20px;
        }

        p, ul, li {
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        ul {
            padding-left: 20px;
            margin-bottom: 24px;
        }

        li {
            margin-bottom: 8px;
        }

        a {
            color: var(--accent-primary);
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
            color: var(--text-primary);
        }
        
        .bold {
            font-weight: 600;
            color: var(--text-primary);
        }

        /* Contact Section with QR Codes */
        .contact-qr-section {
            display: flex;
            gap: 16px;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .qr-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .qr-item img {
            width: 120px;
            height: 120px;
            object-fit: contain;
            border: 1px solid var(--border-light);
            border-radius: 8px;
        }
        .qr-item span {
            font-size: 12px;
            color: var(--text-secondary);
        }