/* roulang page: index */
:root {
        --color-primary: #059669;
        --color-primary-dark: #047857;
        --color-primary-light: #10B981;
        --color-accent: #F59E0B;
        --color-accent-light: #FBBF24;
        --color-accent-dark: #B45309;
        --color-bg: #031A12;
        --color-bg-alt: #062E20;
        --color-bg-card: #064E3B;
        --color-bg-hero: #022C22;
        --color-text: #F0FDF4;
        --color-text-muted: #A7F3D0;
        --color-text-soft: #D1FAE5;
        --color-border: rgba(16,185,129,0.2);
        --color-shadow: rgba(5,150,105,0.15);
        --color-highlight: #FDE68A;
        --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
        --font-heading: 'Georgia', 'Times New Roman', serif;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --shadow-card: 0 4px 20px rgba(0,0,0,0.3), 0 1px 3px rgba(5,150,105,0.1);
        --shadow-card-hover: 0 8px 30px rgba(5,150,105,0.3), 0 2px 8px rgba(0,0,0,0.4);
        --shadow-btn: 0 4px 14px rgba(245,158,11,0.35);
        --shadow-btn-hover: 0 6px 20px rgba(245,158,11,0.55);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      }
      *, *::before, *::after { box-sizing: border-box; }
      body { font-family: var(--font-primary); font-size: 16px; line-height: 1.65; color: var(--color-text); background-color: var(--color-bg); margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }
      a { color: var(--color-accent-light); text-decoration: none; transition: var(--transition); }
      a:hover, a:focus { color: var(--color-accent); text-decoration: underline; outline: none; }
      img { max-width: 100%; height: auto; display: block; }
      h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--color-text); margin-top: 0; line-height: 1.25; }
      h1 { font-size: 2.8rem; font-weight: 700; }
      h2 { font-size: 2rem; font-weight: 700; }
      h3 { font-size: 1.5rem; font-weight: 600; }
      .container { max-width: 1200px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
      section { padding: 4rem 0; }
      .section-header { margin-bottom: 2.5rem; }
      .section-header h2 { margin-bottom: 0.75rem; }
      .section-header p { color: var(--color-text-muted); font-size: 1.1rem; max-width: 800px; }
      .btn { display: inline-block; padding: 0.85rem 2rem; border-radius: var(--radius-md); font-weight: 600; font-size: 1rem; text-align: center; cursor: pointer; transition: var(--transition); border: none; text-decoration: none; line-height: 1.4; }
      .btn-primary { background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark)); color: #031A12; box-shadow: var(--shadow-btn); }
      .btn-primary:hover, .btn-primary:focus { background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent)); transform: translateY(-2px); box-shadow: var(--shadow-btn-hover); color: #031A12; text-decoration: none; }
      .btn-secondary { background: transparent; border: 2px solid var(--color-primary-light); color: var(--color-primary-light); }
      .btn-secondary:hover, .btn-secondary:focus { background: var(--color-primary); border-color: var(--color-primary); color: #fff; transform: translateY(-2px); text-decoration: none; }
      .btn-outline-light { background: transparent; border: 1px solid var(--color-text-muted); color: var(--color-text-muted); }
      .btn-outline-light:hover, .btn-outline-light:focus { background: rgba(255,255,255,0.05); border-color: var(--color-text); color: var(--color-text); transform: translateY(-2px); text-decoration: none; }
      header { background: rgba(3,26,18,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 100; padding: 0.5rem 0; }
      .nav-container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
      .logo { font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700; color: var(--color-accent); line-height: 1.3; max-width: 340px; text-decoration: none; }
      .logo:hover, .logo:focus { color: var(--color-accent-light); text-decoration: none; }
      .nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; margin: 0; padding: 0; }
      .nav-links a { color: var(--color-text-muted); font-weight: 500; font-size: 0.95rem; position: relative; }
      .nav-links a:hover, .nav-links a:focus, .nav-links a.active { color: var(--color-accent); text-decoration: none; }
      .nav-links a.active::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 100%; height: 2px; background: var(--color-accent); border-radius: 2px; }
      .nav-actions { display: flex; align-items: center; gap: 0.8rem; }
      .btn-login { border: 1px solid var(--color-text-muted); color: var(--color-text-muted); padding: 0.5rem 1.2rem; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem; background: transparent; cursor: pointer; transition: var(--transition); }
      .btn-login:hover, .btn-login:focus { border-color: var(--color-accent); color: var(--color-accent); text-decoration: none; }
      .btn-signup { background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark)); color: #031A12; padding: 0.5rem 1.4rem; border-radius: var(--radius-sm); font-weight: 700; font-size: 0.9rem; border: none; cursor: pointer; box-shadow: 0 2px 10px rgba(245,158,11,0.3); transition: var(--transition); }
      .btn-signup:hover, .btn-signup:focus { background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent)); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(245,158,11,0.45); text-decoration: none; }
      .hamburger { display: none; background: none; border: none; color: var(--color-text); font-size: 1.8rem; cursor: pointer; padding: 0.2rem; }
      .hero { background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-bg-alt) 100%); position: relative; overflow: hidden; padding: 5rem 0 4rem; }
      .hero::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at 30% 40%, rgba(5,150,105,0.12) 0%, transparent 60%); }
      .hero .container { position: relative; z-index: 1; }
      .hero-content { max-width: 800px; }
      .hero-icon-grid { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
      .hero-icon-item { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.2); border-radius: var(--radius-md); padding: 0.7rem 1.2rem; display: flex; align-items: center; gap: 0.6rem; font-size: 0.95rem; color: var(--color-text-muted); font-weight: 500; }
      .hero-icon-item i { color: var(--color-accent); font-size: 1.2rem; }
      .hero-status-bar { background: rgba(0,0,0,0.25); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 0.8rem 1.8rem; display: inline-flex; gap: 2rem; margin-bottom: 1.8rem; flex-wrap: wrap; }
      .hero-status-item { display: flex; align-items: center; gap: 0.5rem; }
      .status-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-primary-light); box-shadow: 0 0 10px rgba(16,185,129,0.7); animation: pulse-dot 1.8s infinite; }
      @keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }
      .hero-status-item span { font-size: 0.9rem; color: var(--color-text-muted); }
      .hero h1 { font-size: 2.8rem; margin-bottom: 1.2rem; color: #fff; }
      .hero h1 em { color: var(--color-accent-light); font-style: normal; }
      .hero p { font-size: 1.15rem; color: var(--color-text-muted); margin-bottom: 2rem; line-height: 1.7; }
      .hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
      .features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.8rem; }
      .feature-card { background: var(--color-bg-card); border-radius: var(--radius-lg); padding: 2rem 1.8rem; border: 1px solid var(--color-border); transition: var(--transition); }
      .feature-card:hover { border-color: var(--color-primary-light); box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
      .feature-icon { width: 56px; height: 56px; border-radius: var(--radius-md); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); display: flex; align-items: center; justify-content: center; margin-bottom: 1.2rem; font-size: 1.6rem; color: #fff; }
      .feature-card h3 { font-size: 1.3rem; margin-bottom: 0.6rem; }
      .feature-card p { color: var(--color-text-muted); font-size: 0.95rem; margin: 0; }
      .scene-matrix { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; }
      .scene-card { background: var(--color-bg-card); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); transition: var(--transition); }
      .scene-card:hover { border-color: var(--color-primary-light); box-shadow: var(--shadow-card-hover); }
      .scene-card-body { padding: 1.5rem; }
      .scene-card img { width: 100%; height: 180px; object-fit: cover; }
      .scene-card h3 { font-size: 1.2rem; margin-bottom: 0.4rem; }
      .scene-card p { color: var(--color-text-muted); font-size: 0.9rem; margin: 0; }
      .steps-timeline { position: relative; padding-left: 3rem; }
      .steps-timeline::before { content: ''; position: absolute; left: 18px; top: 8px; bottom: 8px; width: 2px; background: var(--color-border); }
      .step-item { position: relative; margin-bottom: 2.5rem; }
      .step-item:last-child { margin-bottom: 0; }
      .step-number { position: absolute; left: -3rem; top: 0; width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark)); color: #031A12; font-weight: 700; font-size: 1rem; display: flex; align-items: center; justify-content: center; z-index: 2; }
      .step-content h3 { font-size: 1.25rem; margin-bottom: 0.4rem; }
      .step-content p { color: var(--color-text-muted); margin: 0; font-size: 0.95rem; }
      .demo-block { background: var(--color-bg-alt); border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--color-border); display: flex; flex-wrap: wrap; }
      .demo-visual { flex: 1; min-width: 300px; }
      .demo-visual img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
      .demo-text { flex: 1; min-width: 300px; padding: 2.5rem; display: flex; flex-direction: column; justify-content: center; }
      .demo-text h2 { margin-bottom: 1rem; }
      .demo-text p { color: var(--color-text-muted); margin-bottom: 1.2rem; font-size: 1rem; }
      .testimonial-slider { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.8rem; }
      .testimonial-card { background: var(--color-bg-card); border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--color-border); }
      .testimonial-card .quote { font-size: 1.1rem; color: var(--color-text-soft); font-style: italic; margin-bottom: 1.2rem; position: relative; padding-left: 1.5rem; }
      .testimonial-card .quote::before { content: '"'; position: absolute; left: 0; top: -10px; font-size: 3rem; color: var(--color-accent); line-height: 1; font-family: serif; }
      .testimonial-author { display: flex; align-items: center; gap: 0.8rem; }
      .author-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--color-primary); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; }
      .author-info strong { display: block; font-size: 0.95rem; }
      .author-info span { font-size: 0.8rem; color: var(--color-text-muted); }
      .pricing-compare { overflow-x: auto; }
      .pricing-compare table { width: 100%; border-collapse: collapse; min-width: 600px; }
      .pricing-compare th { background: var(--color-bg-card); color: var(--color-text); padding: 1rem 1.2rem; text-align: left; font-weight: 700; font-size: 1rem; border-bottom: 2px solid var(--color-border); }
      .pricing-compare td { padding: 1rem 1.2rem; border-bottom: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 0.95rem; }
      .pricing-compare .highlight-row { background: rgba(5,150,105,0.1); }
      .pricing-compare .highlight-row td { color: var(--color-text); font-weight: 500; }
      .table-check { color: var(--color-primary-light); font-weight: 700; }
      .table-cross { color: #EF4444; }
      .news-list { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
      .news-main { display: flex; flex-direction: column; gap: 1.5rem; }
      .news-item { background: var(--color-bg-card); border-radius: var(--radius-lg); padding: 1.5rem; border: 1px solid var(--color-border); transition: var(--transition); display: flex; gap: 1.2rem; align-items: flex-start; }
      .news-item:hover { border-color: var(--color-primary-light); box-shadow: var(--shadow-card-hover); }
      .news-item img { width: 120px; height: 80px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
      .news-item-content h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
      .news-item-content p { color: var(--color-text-muted); font-size: 0.85rem; margin-bottom: 0.4rem; }
      .news-meta { font-size: 0.8rem; color: var(--color-accent); }
      .news-sidebar { display: flex; flex-direction: column; gap: 1.2rem; }
      .sidebar-card { background: var(--color-bg-alt); border-radius: var(--radius-lg); padding: 1.5rem; border: 1px solid var(--color-border); }
      .sidebar-card h4 { font-size: 1.1rem; margin-bottom: 1rem; }
      .sidebar-card ul { list-style: none; padding: 0; margin: 0; }
      .sidebar-card ul li { padding: 0.5rem 0; border-bottom: 1px solid var(--color-border); }
      .sidebar-card ul li:last-child { border-bottom: none; }
      .sidebar-card ul li a { color: var(--color-text-muted); font-size: 0.9rem; }
      .sidebar-card ul li a:hover { color: var(--color-accent-light); }
      .download-cta { background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent)); border-radius: var(--radius-xl); padding: 3rem 2rem; text-align: center; color: #031A12; }
      .download-cta h2 { color: #031A12; }
      .download-cta p { color: rgba(0,0,0,0.7); font-size: 1.1rem; margin-bottom: 1.5rem; }
      .download-cta .btn { background: #031A12; color: var(--color-accent-light); box-shadow: 0 4px 16px rgba(0,0,0,0.25); }
      .download-cta .btn:hover { background: #000; color: var(--color-accent); }
      .fab-left { position: fixed; left: 1.5rem; bottom: 6rem; z-index: 99; }
      .fab-btn { width: 56px; height: 56px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, var(--color-accent-light), var(--color-accent-dark)); border: 2px solid var(--color-accent); box-shadow: 0 6px 25px rgba(245,158,11,0.35); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: #031A12; cursor: pointer; transition: var(--transition); animation: float-gentle 3s ease-in-out infinite; }
      @keyframes float-gentle { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
      .fab-btn:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(245,158,11,0.5); }
      .badge-hot { background: #DC2626; color: #fff; font-size: 0.7rem; font-weight: 700; padding: 0.25rem 0.7rem; border-radius: 20px; position: absolute; top: -8px; right: -8px; box-shadow: 0 2px 8px rgba(220,38,38,0.5); }
      .text-highlight { color: var(--color-accent-light); font-weight: 600; }
      footer { background: var(--color-bg-alt); border-top: 1px solid var(--color-border); padding: 3rem 0 1.5rem; color: var(--color-text-muted); }
      .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
      .footer-col h4 { color: var(--color-text); margin-bottom: 0.8rem; font-size: 1.1rem; }
      .footer-col ul { list-style: none; padding: 0; margin: 0; }
      .footer-col ul li { margin-bottom: 0.5rem; }
      .footer-col ul li a { color: var(--color-text-muted); font-size: 0.9rem; }
      .footer-col ul li a:hover { color: var(--color-accent-light); }
      .footer-bottom { border-top: 1px solid var(--color-border); padding-top: 1.5rem; text-align: center; font-size: 0.85rem; }
      @media (max-width: 1024px) {
        h1 { font-size: 2.2rem; }
        h2 { font-size: 1.7rem; }
        .hero h1 { font-size: 2.2rem; }
        .news-list { grid-template-columns: 1fr; }
      }
      @media (max-width: 768px) {
        .hamburger { display: block; }
        .nav-links { display: none; flex-direction: column; width: 100%; background: var(--color-bg-alt); border-radius: var(--radius-md); margin-top: 0.5rem; padding: 1rem; }
        .nav-links.open { display: flex; }
        .nav-container { flex-wrap: wrap; }
        h1 { font-size: 1.9rem; }
        h2 { font-size: 1.5rem; }
        .hero { padding: 3rem 0 2.5rem; }
        .hero h1 { font-size: 1.9rem; }
        .hero p { font-size: 1rem; }
        .hero-status-bar { gap: 0.8rem; padding: 0.6rem 1rem; }
        .demo-block { flex-direction: column; }
        .demo-visual img { min-height: 200px; }
        .news-item { flex-direction: column; }
        .news-item img { width: 100%; height: 160px; }
        .fab-left { left: 0.8rem; bottom: 4rem; }
        .fab-btn { width: 48px; height: 48px; font-size: 1.3rem; }
      }
      @media (max-width: 520px) {
        .container { padding-left: 1rem; padding-right: 1rem; }
        section { padding: 2.5rem 0; }
        h1 { font-size: 1.6rem; }
        h2 { font-size: 1.35rem; }
        .hero h1 { font-size: 1.6rem; }
        .hero-buttons { flex-direction: column; }
        .hero-buttons .btn { width: 100%; }
        .nav-actions { gap: 0.4rem; }
        .btn-login, .btn-signup { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
        .logo { font-size: 1rem; max-width: 220px; }
        .features-grid, .scene-matrix, .testimonial-slider { grid-template-columns: 1fr; }
      }

/* roulang page: article */
:root {
            --color-primary: #059669;
            --color-primary-dark: #047857;
            --color-primary-light: #10B981;
            --color-accent: #F59E0B;
            --color-accent-light: #FBBF24;
            --color-accent-dark: #B45309;
            --color-bg: #031A12;
            --color-bg-alt: #062E20;
            --color-bg-card: #064E3B;
            --color-bg-hero: #022C22;
            --color-text: #F0FDF4;
            --color-text-muted: #A7F3D0;
            --color-text-soft: #D1FAE5;
            --color-border: rgba(16,185,129,0.2);
            --color-shadow: rgba(5,150,105,0.15);
            --color-highlight: #FDE68A;
            --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3), 0 1px 3px rgba(5,150,105,0.1);
            --shadow-card-hover: 0 8px 30px rgba(5,150,105,0.3), 0 2px 8px rgba(0,0,0,0.4);
            --shadow-btn: 0 4px 14px rgba(245,158,11,0.35);
            --shadow-btn-hover: 0 6px 20px rgba(245,158,11,0.55);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--color-accent-light);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-accent);
            text-decoration: underline;
            outline: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        section {
            padding: 4rem 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header h2 {
            margin-bottom: 0.75rem;
        }

        .section-header p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            max-width: 800px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
            margin-top: 0;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
        }

        .btn {
            display: inline-block;
            padding: 0.85rem 2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #031A12;
            text-decoration: none;
        }

        .btn-secondary {
            background: transparent;
            border: 2px solid var(--color-primary-light);
            color: var(--color-primary-light);
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255,255,255,0.05);
            border-color: var(--color-text);
            color: var(--color-text);
            transform: translateY(-2px);
            text-decoration: none;
        }

        header {
            background: rgba(3,26,18,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0.5rem 0;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.3;
            max-width: 340px;
            text-decoration: none;
        }

        .logo:hover,
        .logo:focus {
            color: var(--color-accent-light);
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--color-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            text-decoration: none;
        }

        .nav-links a:hover,
        .nav-links a:focus,
        .nav-links a.active {
            color: var(--color-accent);
            text-decoration: none;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-login:hover,
        .btn-login:focus {
            border-color: var(--color-accent);
            color: var(--color-accent);
            text-decoration: none;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(245,158,11,0.3);
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(245,158,11,0.45);
            text-decoration: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem;
        }

        .article-hero {
            background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-bg-alt) 100%);
            position: relative;
            overflow: hidden;
            padding: 3rem 0;
            border-bottom: 1px solid var(--color-border);
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 50%, rgba(5,150,105,0.08) 0%, transparent 60%);
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }

        .article-meta .category-badge {
            background: var(--color-primary-dark);
            color: var(--color-accent-light);
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .article-body {
            background: var(--color-bg-alt);
            padding: 3rem 0;
        }

        .article-content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            align-items: start;
        }

        .article-main {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }

        .article-main h2 {
            font-size: 1.8rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--color-accent-light);
            border-left: 4px solid var(--color-accent);
            padding-left: 1rem;
        }

        .article-main h3 {
            font-size: 1.4rem;
            margin-top: 1.5rem;
            color: var(--color-text-soft);
        }

        .article-main p {
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 1.5rem;
            text-align: justify;
        }

        .article-main ul,
        .article-main ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--color-text-muted);
        }

        .article-main li {
            margin-bottom: 0.5rem;
            line-height: 1.7;
        }

        .article-main img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.4);
        }

        .article-main blockquote {
            border-left: 4px solid var(--color-accent);
            background: rgba(245,158,11,0.05);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-text-soft);
        }

        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h4 {
            font-size: 1.2rem;
            color: var(--color-accent);
            margin-bottom: 1rem;
            border-bottom: 1px solid var(--color-border);
            padding-bottom: 0.5rem;
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-card ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .sidebar-card ul li:last-child {
            border-bottom: none;
        }

        .sidebar-card ul li a {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .sidebar-card ul li a:hover {
            color: var(--color-accent);
            text-decoration: none;
            transform: translateX(5px);
        }

        .cta-sticky {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            color: #031A12;
            box-shadow: var(--shadow-card);
        }

        .cta-sticky h4 {
            color: #031A12;
            margin-bottom: 0.5rem;
            font-weight: 700;
        }

        .cta-sticky p {
            color: #031A12;
            font-size: 0.9rem;
            margin-bottom: 1rem;
            opacity: 0.9;
        }

        .cta-sticky .btn {
            background: #031A12;
            color: var(--color-accent-light);
            width: 100%;
            font-weight: 700;
        }

        .cta-sticky .btn:hover {
            background: #064E3B;
            color: var(--color-accent);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .related-articles-section {
            background: var(--color-bg);
            padding: 4rem 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .related-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }

        .related-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 1.5rem;
        }

        .related-card-body h4 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }

        .related-card-body p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .back-to-top {
            position: fixed;
            left: 20px;
            bottom: 120px;
            z-index: 50;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(245,158,11,0.4);
            transition: var(--transition);
            border: 2px solid rgba(255,255,255,0.2);
            text-decoration: none;
        }

        .back-to-top:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 20px rgba(245,158,11,0.6);
            text-decoration: none;
            color: #031A12;
        }

        footer {
            background: linear-gradient(180deg, var(--color-bg-alt) 0%, #020F09 100%);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid var(--color-border);
            color: var(--color-text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: var(--color-accent);
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--color-border);
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 1024px) {
            .article-content-wrapper {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
            }

            h1 {
                font-size: 2rem;
            }

            .nav-links {
                gap: 1rem;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(3,26,18,0.95);
                backdrop-filter: blur(20px);
                padding: 1rem;
                border-top: 1px solid var(--color-border);
                box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            }

            .nav-links.active {
                display: flex;
            }

            .nav-actions {
                display: flex;
            }

            .logo {
                font-size: 1.1rem;
                max-width: 250px;
            }

            .article-main {
                padding: 1.5rem;
            }

            .article-meta {
                font-size: 0.85rem;
                gap: 0.8rem;
            }

            h1 {
                font-size: 1.8rem;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .btn {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
            }

            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
      --color-primary: #059669;
      --color-primary-dark: #047857;
      --color-primary-light: #10B981;
      --color-accent: #F59E0B;
      --color-accent-light: #FBBF24;
      --color-accent-dark: #B45309;
      --color-bg: #031A12;
      --color-bg-alt: #062E20;
      --color-bg-card: #064E3B;
      --color-bg-hero: #022C22;
      --color-text: #F0FDF4;
      --color-text-muted: #A7F3D0;
      --color-text-soft: #D1FAE5;
      --color-border: rgba(16,185,129,0.2);
      --color-shadow: rgba(5,150,105,0.15);
      --color-highlight: #FDE68A;
      --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
      --font-heading: 'Georgia', 'Times New Roman', serif;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --shadow-card: 0 4px 20px rgba(0,0,0,0.3), 0 1px 3px rgba(5,150,105,0.1);
      --shadow-card-hover: 0 8px 30px rgba(5,150,105,0.3), 0 2px 8px rgba(0,0,0,0.4);
      --shadow-btn: 0 4px 14px rgba(245,158,11,0.35);
      --shadow-btn-hover: 0 6px 20px rgba(245,158,11,0.55);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    body {
      font-family: var(--font-primary);
      font-size: 16px;
      line-height: 1.65;
      color: var(--color-text);
      background-color: var(--color-bg);
      margin: 0; padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--color-accent-light); text-decoration: none; transition: var(--transition); }
    a:hover, a:focus { color: var(--color-accent); text-decoration: underline; outline: none; }
    img { max-width: 100%; height: auto; display: block; }
    .container { max-width: 1200px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
    section { padding: 5rem 0; }
    .section-header { margin-bottom: 3rem; }
    .section-header h2 {
      font-family: var(--font-heading);
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 0.75rem;
      line-height: 1.35;
    }
    .section-header p {
      color: var(--color-text-muted);
      font-size: 1.15rem;
      max-width: 800px;
      margin-bottom: 0;
    }
    .btn {
      display: inline-block;
      padding: 0.9rem 2.2rem;
      border-radius: var(--radius-md);
      font-weight: 600;
      font-size: 1rem;
      text-align: center;
      cursor: pointer;
      transition: var(--transition);
      border: none;
      text-decoration: none;
      line-height: 1.4;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
      color: #031A12;
      box-shadow: var(--shadow-btn);
    }
    .btn-primary:hover, .btn-primary:focus {
      background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
      transform: translateY(-2px);
      box-shadow: var(--shadow-btn-hover);
      color: #031A12;
      text-decoration: none;
    }
    .btn-secondary {
      background: transparent;
      border: 2px solid var(--color-primary-light);
      color: var(--color-primary-light);
    }
    .btn-secondary:hover, .btn-secondary:focus {
      background: var(--color-primary);
      border-color: var(--color-primary);
      color: #fff;
      transform: translateY(-2px);
      text-decoration: none;
    }
    .btn-outline-light {
      background: transparent;
      border: 1px solid var(--color-text-muted);
      color: var(--color-text-muted);
    }
    .btn-outline-light:hover, .btn-outline-light:focus {
      background: rgba(255,255,255,0.05);
      border-color: var(--color-text);
      color: var(--color-text);
      transform: translateY(-2px);
      text-decoration: none;
    }
    header {
      background: rgba(3,26,18,0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--color-border);
      position: sticky;
      top: 0;
      z-index: 100;
      padding: 0.5rem 0;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }
    .logo {
      font-family: var(--font-heading);
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-accent);
      line-height: 1.3;
      max-width: 320px;
      text-decoration: none;
    }
    .logo:hover, .logo:focus { color: var(--color-accent-light); text-decoration: none; }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.8rem;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links a {
      color: var(--color-text-muted);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
    }
    .nav-links a:hover, .nav-links a:focus, .nav-links a.active {
      color: var(--color-accent);
      text-decoration: none;
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--color-accent);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 0.8rem;
    }
    .btn-login {
      border: 1px solid var(--color-text-muted);
      color: var(--color-text-muted);
      padding: 0.5rem 1.2rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.9rem;
      background: transparent;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-login:hover, .btn-login:focus {
      border-color: var(--color-accent);
      color: var(--color-accent);
      text-decoration: none;
    }
    .btn-signup {
      background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
      color: #031A12;
      padding: 0.5rem 1.4rem;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      box-shadow: 0 2px 10px rgba(245,158,11,0.3);
      transition: var(--transition);
    }
    .btn-signup:hover, .btn-signup:focus {
      background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
      transform: translateY(-1px);
      box-shadow: 0 4px 16px rgba(245,158,11,0.45);
      text-decoration: none;
    }
    .hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--color-text);
      font-size: 1.8rem;
      cursor: pointer;
      padding: 0.2rem;
    }
    .hero {
      background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-bg-alt) 100%);
      position: relative;
      overflow: hidden;
      padding: 4.5rem 0 3.5rem;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: radial-gradient(circle at 30% 40%, rgba(5,150,105,0.15) 0%, transparent 70%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      gap: 3rem;
      flex-wrap: wrap;
    }
    .hero-text { flex: 1 1 55%; }
    .hero-text h1 {
      font-family: var(--font-heading);
      font-size: 2.8rem;
      font-weight: 700;
      color: #fff;
      line-height: 1.25;
      margin-bottom: 1.25rem;
    }
    .hero-text p {
      font-size: 1.2rem;
      color: var(--color-text-muted);
      margin-bottom: 2rem;
      line-height: 1.7;
    }
    .hero-visual {
      flex: 1 1 35%;
      display: flex;
      justify-content: center;
      align-items: center;
    }
    .hero-visual img {
      border-radius: var(--radius-lg);
      box-shadow: 0 10px 40px rgba(0,0,0,0.5), 0 0 30px rgba(5,150,105,0.2);
    }
    .group-buy-bar {
      background: var(--color-bg-card);
      border-radius: var(--radius-lg);
      padding: 1.5rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1.5rem;
      margin-top: 2rem;
      border: 1px solid var(--color-border);
    }
    .group-info {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .group-avatars {
      display: flex;
      align-items: center;
    }
    .group-avatars span {
      display: inline-block;
      width: 36px;
      height: 36px;
      background: var(--color-bg-alt);
      border-radius: 50%;
      border: 2px solid var(--color-primary);
      margin-left: -10px;
      font-size: 0.8rem;
      color: var(--color-text-muted);
      text-align: center;
      line-height: 32px;
    }
    .group-avatars span:first-child { margin-left: 0; }
    .group-text strong {
      display: block;
      font-size: 1.1rem;
      color: var(--color-accent);
    }
    .group-text small { color: var(--color-text-muted); font-size: 0.9rem; }
    .group-buttons { display: flex; gap: 0.8rem; }
    .category-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 2rem;
      margin-top: 1rem;
    }
    .category-card {
      background: var(--color-bg-card);
      border-radius: var(--radius-lg);
      padding: 2rem 1.5rem;
      border: 1px solid var(--color-border);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .category-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-card-hover);
      border-color: var(--color-primary);
    }
    .category-card h3 {
      font-family: var(--font-heading);
      font-size: 1.4rem;
      color: var(--color-accent-light);
      margin-bottom: 1rem;
    }
    .category-card p {
      color: var(--color-text-muted);
      font-size: 0.95rem;
      margin-bottom: 1.5rem;
      line-height: 1.6;
    }
    .category-card .btn { margin-top: auto; }
    .info-list-block {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2.5rem;
      align-items: start;
    }
    .info-list-block .text-content h3 {
      font-family: var(--font-heading);
      font-size: 1.85rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1.25rem;
    }
    .info-list-block .text-content p {
      color: var(--color-text-muted);
      font-size: 1.1rem;
      line-height: 1.7;
    }
    .icon-list {
      list-style: none;
      padding: 0;
      margin: 1.5rem 0 0;
    }
    .icon-list li {
      display: flex;
      align-items: flex-start;
      gap: 0.75rem;
      margin-bottom: 1.25rem;
      font-size: 1.05rem;
      color: var(--color-text-soft);
    }
    .icon-list li i {
      color: var(--color-accent);
      font-size: 1.3rem;
      margin-top: 0.2rem;
      flex-shrink: 0;
    }
    .step-section {
      background: var(--color-bg-alt);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
    }
    .step-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 2.5rem;
      counter-reset: step;
    }
    .step-item {
      background: var(--color-bg-card);
      border-radius: var(--radius-lg);
      padding: 2rem 1.5rem;
      position: relative;
      border: 1px solid var(--color-border);
    }
    .step-item::before {
      counter-increment: step;
      content: counter(step);
      position: absolute;
      top: -20px;
      left: 20px;
      background: var(--color-accent);
      color: #031A12;
      width: 45px;
      height: 45px;
      border-radius: 50%;
      font-weight: 700;
      font-size: 1.3rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .step-item h4 {
      font-family: var(--font-heading);
      font-size: 1.25rem;
      color: var(--color-accent-light);
      margin-top: 1rem;
      margin-bottom: 0.5rem;
    }
    .step-item p {
      color: var(--color-text-muted);
      font-size: 0.95rem;
    }
    .cta-block {
      background: linear-gradient(135deg, var(--color-bg-alt), var(--color-bg-card));
      border-radius: var(--radius-xl);
      padding: 3.5rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 2rem;
      border: 1px solid var(--color-border);
    }
    .cta-block h2 {
      font-family: var(--font-heading);
      font-size: 2rem;
      color: #fff;
      margin-bottom: 0.5rem;
    }
    .cta-block p { color: var(--color-text-muted); font-size: 1.1rem; margin: 0; }
    .post-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
      margin-top: 1rem;
    }
    .post-card {
      background: var(--color-bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-border);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .post-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-card-hover);
      border-color: var(--color-primary);
    }
    .post-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .post-card-body {
      padding: 1.5rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .post-card-body h3 {
      font-family: var(--font-heading);
      font-size: 1.2rem;
      color: var(--color-accent-light);
      margin-bottom: 0.5rem;
    }
    .post-card-body p {
      color: var(--color-text-muted);
      font-size: 0.9rem;
      flex: 1;
      margin-bottom: 1rem;
    }
    .post-card-body .post-meta {
      font-size: 0.8rem;
      color: var(--color-text-soft);
      margin-top: auto;
    }
    footer {
      background: var(--color-bg-alt);
      border-top: 1px solid var(--color-border);
      padding: 4rem 0 2rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2.5rem;
      margin-bottom: 2.5rem;
    }
    .footer-col h4 {
      font-family: var(--font-heading);
      font-size: 1.1rem;
      color: var(--color-accent);
      margin-bottom: 1.25rem;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li { margin-bottom: 0.75rem; }
    .footer-col ul li a {
      color: var(--color-text-muted);
      font-size: 0.95rem;
    }
    .footer-col ul li a:hover { color: var(--color-accent); text-decoration: none; }
    .footer-bottom {
      border-top: 1px solid var(--color-border);
      padding-top: 1.5rem;
      text-align: center;
      color: var(--color-text-muted);
      font-size: 0.9rem;
    }
    .footer-bottom a { color: var(--color-accent); }
    @media (max-width: 1024px) {
      .hero-content { flex-direction: column; }
      .hero-text h1 { font-size: 2.2rem; }
      .section-header h2 { font-size: 1.85rem; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: rgba(3,26,18,0.95); flex-direction: column; padding: 1.5rem; gap: 1rem; }
      .nav-links.active { display: flex; }
      .hamburger { display: block; }
      .nav-actions { margin-left: auto; }
      .group-buy-bar { flex-direction: column; align-items: flex-start; }
      .hero-text h1 { font-size: 1.8rem; }
      section { padding: 3rem 0; }
      .cta-block { flex-direction: column; text-align: center; }
    }
    @media (max-width: 520px) {
      .group-buttons { flex-direction: column; width: 100%; }
      .group-buttons .btn { width: 100%; }
    }

/* roulang page: category2 */
:root {
            --color-primary: #059669;
            --color-primary-dark: #047857;
            --color-primary-light: #10B981;
            --color-accent: #F59E0B;
            --color-accent-light: #FBBF24;
            --color-accent-dark: #B45309;
            --color-bg: #031A12;
            --color-bg-alt: #062E20;
            --color-bg-card: #064E3B;
            --color-bg-hero: #022C22;
            --color-text: #F0FDF4;
            --color-text-muted: #A7F3D0;
            --color-text-soft: #D1FAE5;
            --color-border: rgba(16,185,129,0.2);
            --color-shadow: rgba(5,150,105,0.15);
            --color-highlight: #FDE68A;
            --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3), 0 1px 3px rgba(5,150,105,0.1);
            --shadow-card-hover: 0 8px 30px rgba(5,150,105,0.3), 0 2px 8px rgba(0,0,0,0.4);
            --shadow-btn: 0 4px 14px rgba(245,158,11,0.35);
            --shadow-btn-hover: 0 6px 20px rgba(245,158,11,0.55);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--color-accent-light);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-accent);
            text-decoration: underline;
            outline: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        section {
            padding: 4rem 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header h2 {
            margin-bottom: 0.75rem;
        }

        .section-header p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            max-width: 800px;
        }

        .btn {
            display: inline-block;
            padding: 0.85rem 2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #031A12;
            text-decoration: none;
        }

        .btn-secondary {
            background: transparent;
            border: 2px solid var(--color-primary-light);
            color: var(--color-primary-light);
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255,255,255,0.05);
            border-color: var(--color-text);
            color: var(--color-text);
            transform: translateY(-2px);
            text-decoration: none;
        }

        header {
            background: rgba(3,26,18,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0.5rem 0;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.3;
            max-width: 340px;
            text-decoration: none;
        }

        .logo:hover,
        .logo:focus {
            color: var(--color-accent-light);
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--color-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a:focus,
        .nav-links a.active {
            color: var(--color-accent);
            text-decoration: none;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-login:hover,
        .btn-login:focus {
            border-color: var(--color-accent);
            color: var(--color-accent);
            text-decoration: none;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(245,158,11,0.3);
            transition: var(--transition);
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(245,158,11,0.45);
            text-decoration: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem;
        }

        .category-hero {
            background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-bg-alt) 100%);
            position: relative;
            overflow: hidden;
            padding: 4rem 0 3rem;
            text-align: left;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 70% 30%, rgba(5,150,105,0.15) 0%, transparent 60%);
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .category-hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 1rem;
            line-height: 1.25;
        }

        .category-hero-text p {
            font-size: 1.2rem;
            color: var(--color-text-muted);
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .category-hero-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 2px solid var(--color-border);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-top: 2rem;
        }

        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 2rem;
            border: 1px solid var(--color-border);
            transition: var(--transition);
            text-align: left;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary-light);
        }

        .feature-icon {
            font-size: 2.2rem;
            color: var(--color-accent);
            margin-bottom: 1rem;
        }

        .feature-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--color-text);
        }

        .feature-card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .scale-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        .scale-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            border: 1px solid var(--color-border);
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
        }

        .scale-item img {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            border: 1px solid var(--color-border);
        }

        .scale-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .scale-info p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .stripe-bg {
            background: var(--color-bg-alt);
        }

        .faq-section details {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            margin-bottom: 1rem;
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-section details:hover {
            border-color: var(--color-primary-light);
        }

        .faq-section summary {
            font-weight: 700;
            font-size: 1.05rem;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-section summary::-webkit-details-marker {
            display: none;
        }

        .faq-section details[open] summary {
            margin-bottom: 0.75rem;
            color: var(--color-accent);
        }

        .faq-section .faq-body {
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .posts-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .post-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }

        .post-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary-light);
        }

        .post-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .post-card-body {
            padding: 1.2rem;
        }

        .post-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .post-card-body p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }

        .post-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 0.5rem;
        }

        .strip-cta {
            background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
            padding: 3rem 0;
            text-align: center;
            border-radius: var(--radius-lg);
            margin: 0 1.5rem;
        }

        footer {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--color-accent);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--color-border);
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .floating-fab {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.85;
        }

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(245,158,11,0.55);
        }

        .floating-fab i {
            font-size: 1.5rem;
            color: #031A12;
        }

        @media (max-width: 1024px) {
            .category-hero-content {
                grid-template-columns: 1fr;
            }

            .category-hero-image {
                display: block;
                max-width: 500px;
                margin: 0 auto;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .posts-list {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scale-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--color-bg);
                padding: 1rem;
                border-top: 1px solid var(--color-border);
            }

            .nav-links.active {
                display: flex;
            }

            .nav-actions {
                width: 100%;
                justify-content: space-between;
                margin-top: 1rem;
            }

            .category-hero-text h1 {
                font-size: 2rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .posts-list {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .scale-item {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .category-hero-text h1 {
                font-size: 1.6rem;
            }

            .category-hero-text p {
                font-size: 1rem;
            }

            .btn {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #059669;
            --color-primary-dark: #047857;
            --color-primary-light: #10B981;
            --color-accent: #F59E0B;
            --color-accent-light: #FBBF24;
            --color-accent-dark: #B45309;
            --color-bg: #031A12;
            --color-bg-alt: #062E20;
            --color-bg-card: #064E3B;
            --color-bg-hero: #022C22;
            --color-text: #F0FDF4;
            --color-text-muted: #A7F3D0;
            --color-text-soft: #D1FAE5;
            --color-border: rgba(16,185,129,0.2);
            --color-shadow: rgba(5,150,105,0.15);
            --color-highlight: #FDE68A;
            --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3), 0 1px 3px rgba(5,150,105,0.1);
            --shadow-card-hover: 0 8px 30px rgba(5,150,105,0.3), 0 2px 8px rgba(0,0,0,0.4);
            --shadow-btn: 0 4px 14px rgba(245,158,11,0.35);
            --shadow-btn-hover: 0 6px 20px rgba(245,158,11,0.55);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        
        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        
        a {
            color: var(--color-accent-light);
            text-decoration: none;
            transition: var(--transition);
        }
        
        a:hover,
        a:focus {
            color: var(--color-accent);
            text-decoration: underline;
            outline: none;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        
        section {
            padding: 4rem 0;
        }
        
        .section-header {
            margin-bottom: 2.5rem;
        }
        
        .section-header h2 {
            margin-bottom: 0.75rem;
            font-family: var(--font-heading);
        }
        
        .section-header p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            max-width: 800px;
        }
        
        .btn {
            display: inline-block;
            padding: 0.85rem 2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            box-shadow: var(--shadow-btn);
        }
        
        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #031A12;
            text-decoration: none;
        }
        
        .btn-secondary {
            background: transparent;
            border: 2px solid var(--color-primary-light);
            color: var(--color-primary-light);
        }
        
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
        }
        
        .btn-outline-light {
            background: transparent;
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
        }
        
        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255,255,255,0.05);
            border-color: var(--color-text);
            color: var(--color-text);
            transform: translateY(-2px);
            text-decoration: none;
        }
        
        header {
            background: rgba(3,26,18,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0.5rem 0;
        }
        
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        
        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.3;
            max-width: 340px;
            text-decoration: none;
        }
        
        .logo:hover,
        .logo:focus {
            color: var(--color-accent-light);
            text-decoration: none;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .nav-links a {
            color: var(--color-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
        }
        
        .nav-links a:hover,
        .nav-links a:focus,
        .nav-links a.active {
            color: var(--color-accent);
            text-decoration: none;
        }
        
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        
        .btn-login {
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .btn-login:hover,
        .btn-login:focus {
            border-color: var(--color-accent);
            color: var(--color-accent);
            text-decoration: none;
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(245,158,11,0.3);
            transition: var(--transition);
        }
        
        .btn-signup:hover,
        .btn-signup:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(245,158,11,0.45);
            text-decoration: none;
        }
        
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem;
        }
        
        .hero-category {
            background: linear-gradient(135deg, var(--color-bg-hero) 0%, #021712 100%);
            position: relative;
            overflow: hidden;
            padding: 5rem 0 4rem;
            border-bottom: 2px solid var(--color-border);
        }
        
        .hero-category::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(5,150,105,0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        
        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.25;
            margin-bottom: 1.5rem;
        }
        
        .hero-text h1 span {
            color: var(--color-accent);
        }
        
        .hero-text .hero-subtitle {
            font-size: 1.2rem;
            color: var(--color-text-muted);
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        
        .hero-bullets {
            list-style: none;
            padding: 0;
            margin: 0 0 2rem 0;
        }
        
        .hero-bullets li {
            padding: 0.5rem 0;
            color: var(--color-text-soft);
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .hero-bullets li i {
            color: var(--color-accent);
            font-size: 1.2rem;
            min-width: 24px;
            text-align: center;
        }
        
        .hero-visual {
            position: relative;
            text-align: center;
        }
        
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card-hover);
            border: 3px solid rgba(245,158,11,0.3);
        }
        
        .trust-strip {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--color-border);
        }
        
        .trust-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }
        
        .trust-item i {
            color: var(--color-primary-light);
            font-size: 1.2rem;
        }
        
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }
        
        .criteria-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .criteria-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(245,158,11,0.3);
        }
        
        .criteria-card .card-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.2rem;
            font-size: 1.8rem;
            color: var(--color-accent);
        }
        
        .criteria-card h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            color: var(--color-text);
            margin-bottom: 0.75rem;
        }
        
        .criteria-card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }
        
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            counter-reset: step;
        }
        
        .step-card {
            flex: 1 1 240px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            position: relative;
            transition: var(--transition);
        }
        
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -15px;
            left: 20px;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: #031A12;
            box-shadow: 0 4px 12px rgba(245,158,11,0.3);
        }
        
        .step-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            margin-top: 0.5rem;
            margin-bottom: 0.75rem;
            color: var(--color-text);
        }
        
        .step-card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }
        
        .info-list-section {
            background: var(--color-bg-alt);
        }
        
        .info-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.2rem;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .info-list li {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            transition: var(--transition);
        }
        
        .info-list li:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-card);
        }
        
        .info-list li i {
            font-size: 1.5rem;
            color: var(--color-accent);
            margin-top: 2px;
        }
        
        .info-list li strong {
            display: block;
            font-family: var(--font-heading);
            font-size: 1.05rem;
            color: var(--color-text);
            margin-bottom: 0.4rem;
        }
        
        .info-list li span {
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }
        
        .comparison-table-wrap {
            overflow-x: auto;
            margin-top: 2rem;
        }
        
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        
        .comparison-table th {
            background: var(--color-primary-dark);
            color: var(--color-text);
            font-family: var(--font-heading);
            padding: 1rem 1.5rem;
            text-align: left;
            font-weight: 600;
        }
        
        .comparison-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text-muted);
        }
        
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        
        .comparison-table .check {
            color: var(--color-primary-light);
            font-weight: 700;
        }
        
        .comparison-table .cross {
            color: #EF4444;
            font-weight: 700;
        }
        
        .faq-section {
            background: var(--color-bg-alt);
        }
        
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem 2rem;
            margin-bottom: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .faq-item:hover {
            border-color: var(--color-primary-light);
        }
        
        .faq-question {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin: 0 0 0.5rem 0;
        }
        
        .faq-answer {
            color: var(--color-text-muted);
            line-height: 1.7;
            margin: 0;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 2px rgba(245,158,11,0.1);
        }
        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        
        .article-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(245,158,11,0.3);
        }
        
        .article-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .article-card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .article-card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            margin-bottom: 0.75rem;
            color: var(--color-text);
        }
        
        .article-card-body h3 a {
            color: var(--color-text);
            text-decoration: none;
        }
        
        .article-card-body h3 a:hover {
            color: var(--color-accent);
        }
        
        .article-card-body .article-meta {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 0.75rem;
        }
        
        .article-card-body p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 1rem;
        }
        
        .article-card-body .read-more {
            align-self: flex-start;
            font-weight: 600;
            color: var(--color-accent);
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        
        .cta-strip {
            background: linear-gradient(135deg, var(--color-primary-dark), var(--color-bg-hero));
            border-top: 2px solid var(--color-accent);
            border-bottom: 2px solid var(--color-accent);
            text-align: center;
            padding: 3rem 0;
        }
        
        .cta-strip h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--color-text);
            margin-bottom: 1rem;
        }
        
        .cta-strip p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            margin-bottom: 2rem;
        }
        
        footer {
            background: #02120C;
            border-top: 3px solid var(--color-accent);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-col h4 {
            font-family: var(--font-heading);
            color: var(--color-accent);
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        
        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .footer-col ul li a:hover {
            color: var(--color-accent);
            padding-left: 5px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--color-border);
        }
        
        .footer-bottom p {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            margin: 0;
        }
        
        .fab-fixed {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid var(--color-accent-light);
            animation: floatBreath 3s ease-in-out infinite;
        }
        
        .fab-fixed:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(245,158,11,0.55);
        }
        
        .fab-fixed i {
            color: #031A12;
            font-size: 1.6rem;
        }
        
        @keyframes floatBreath {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }
        
        @media screen and (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: left;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-visual {
                order: -1;
                margin-bottom: 1rem;
            }
            .hero-visual img {
                max-height: 300px;
                width: auto;
                margin: 0 auto;
            }
            .nav-links {
                gap: 1.2rem;
            }
        }
        
        @media screen and (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(3,26,18,0.98);
                backdrop-filter: blur(20px);
                padding: 1rem 1.5rem;
                border-bottom: 2px solid var(--color-border);
                gap: 1rem;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-actions {
                margin-left: auto;
                margin-right: 1rem;
            }
            .hero-category {
                padding: 3rem 0;
            }
            .hero-text h1 {
                font-size: 1.9rem;
            }
            .criteria-grid,
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-direction: column;
            }
            section {
                padding: 2.5rem 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }
        
        @media screen and (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 1.6rem;
            }
            .btn {
                padding: 0.7rem 1.5rem;
                font-size: 0.95rem;
            }
            .trust-strip {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
            .nav-actions {
                gap: 0.5rem;
            }
            .btn-login,
            .btn-signup {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
            .logo {
                font-size: 1.1rem;
                max-width: 220px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #059669;
            --color-primary-dark: #047857;
            --color-primary-light: #10B981;
            --color-accent: #F59E0B;
            --color-accent-light: #FBBF24;
            --color-accent-dark: #B45309;
            --color-bg: #031A12;
            --color-bg-alt: #062E20;
            --color-bg-card: #064E3B;
            --color-bg-hero: #022C22;
            --color-text: #F0FDF4;
            --color-text-muted: #A7F3D0;
            --color-text-soft: #D1FAE5;
            --color-border: rgba(16,185,129,0.2);
            --color-shadow: rgba(5,150,105,0.15);
            --color-highlight: #FDE68A;
            --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3), 0 1px 3px rgba(5,150,105,0.1);
            --shadow-card-hover: 0 8px 30px rgba(5,150,105,0.3), 0 2px 8px rgba(0,0,0,0.4);
            --shadow-btn: 0 4px 14px rgba(245,158,11,0.35);
            --shadow-btn-hover: 0 6px 20px rgba(245,158,11,0.55);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-primary);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--color-accent-light);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--color-accent);
            text-decoration: underline;
            outline: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        section {
            padding: 4rem 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header h2 {
            margin-bottom: 0.75rem;
        }

        .section-header p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            max-width: 800px;
        }

        h1,
        h2,
        h3,
        h4 {
            font-family: var(--font-heading);
            line-height: 1.3;
            margin-top: 0;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-highlight);
            margin-bottom: 1rem;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
        }

        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--color-accent-light);
        }

        .btn {
            display: inline-block;
            padding: 0.85rem 2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #031A12;
            text-decoration: none;
        }

        .btn-secondary {
            background: transparent;
            border: 2px solid var(--color-primary-light);
            color: var(--color-primary-light);
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255,255,255,0.05);
            border-color: var(--color-text);
            color: var(--color-text);
            transform: translateY(-2px);
            text-decoration: none;
        }

        /* Header */
        header {
            background: rgba(3,26,18,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0.5rem 0;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.3;
            max-width: 340px;
            text-decoration: none;
        }

        .logo:hover,
        .logo:focus {
            color: var(--color-accent-light);
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--color-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a:focus,
        .nav-links a.active {
            color: var(--color-accent);
            text-decoration: none;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .btn-login {
            border: 1px solid var(--color-text-muted);
            color: var(--color-text-muted);
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-login:hover,
        .btn-login:focus {
            border-color: var(--color-accent);
            color: var(--color-accent);
            text-decoration: none;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #031A12;
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 2px 10px rgba(245,158,11,0.3);
            transition: var(--transition);
        }

        .btn-signup:hover,
        .btn-signup:focus {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(245,158,11,0.45);
            text-decoration: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem;
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, var(--color-bg-hero) 0%, var(--color-bg-alt) 100%);
            position: relative;
            overflow: hidden;
            padding: 5rem 0 4rem;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 40%, rgba(5,150,105,0.12) 0%, transparent 60%);
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .hero-content {
            text-align: left;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            margin-bottom: 1.2rem;
        }

        .hero-content p {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .hero-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

        .hero-tags {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }

        .hero-tag {
            background: rgba(5,150,105,0.15);
            color: var(--color-text-soft);
            border: 1px solid var(--color-border);
            padding: 0.35rem 1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* Cards */
        .card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-primary-light);
        }

        .card-icon {
            width: 50px;
            height: 50px;
            background: rgba(5,150,105,0.2);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            font-size: 1.5rem;
            color: var(--color-primary-light);
        }

        .card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }

        .card p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        /* Process / Timeline */
        .process-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .process-item {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--color-border);
        }

        .process-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .process-num {
            width: 56px;
            height: 56px;
            background: rgba(245,158,11,0.15);
            border: 2px solid var(--color-accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }

        .process-body h4 {
            font-size: 1.2rem;
            color: var(--color-text);
            margin-bottom: 0.4rem;
        }

        .process-body p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Nutrition Table */
        .nutrition-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .nutrition-table th,
        .nutrition-table td {
            padding: 1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid var(--color-border);
        }

        .nutrition-table th {
            background: var(--color-primary-dark);
            color: var(--color-highlight);
            font-weight: 700;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .nutrition-table td {
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }

        .nutrition-table tbody tr:last-child td {
            border-bottom: none;
        }

        .nutrition-table tbody tr:hover td {
            background: rgba(5,150,105,0.08);
        }

        .nutrition-table .highlight-cell {
            color: var(--color-accent-light);
            font-weight: 600;
        }

        /* FAQ */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 1.2rem 1.5rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            line-height: 1.5;
        }

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 0 1.5rem 1.5rem;
        }

        .faq-item.active {
            border-color: var(--color-primary-light);
            box-shadow: 0 0 15px rgba(5,150,105,0.1);
        }

        /* Testimonial */
        .testimonial-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 2rem;
        }

        .testimonial-text {
            font-style: italic;
            color: var(--color-text-soft);
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 1.2rem;
            position: relative;
            padding-left: 1.5rem;
        }

        .testimonial-text::before {
            content: '\201C';
            font-size: 3rem;
            color: var(--color-accent);
            position: absolute;
            left: 0;
            top: -0.5rem;
            line-height: 1;
            font-family: var(--font-heading);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .testimonial-author img {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 2px solid var(--color-accent);
        }

        .testimonial-author strong {
            display: block;
            color: var(--color-text);
            font-size: 0.95rem;
        }

        .testimonial-author span {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary-dark), var(--color-bg-alt));
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            text-align: left;
            border: 1px solid var(--color-border);
        }

        .cta-banner h3 {
            color: var(--color-highlight);
        }

        .cta-banner p {
            color: var(--color-text-muted);
            font-size: 1rem;
            margin-bottom: 1.5rem;
        }

        /* Floating FAB */
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, #031A12, #064E3B);
            border: 2px solid var(--color-accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.4rem;
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.8;
        }

        .fab-left:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 30px rgba(245,158,11,0.5);
        }

        .fab-left:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid #fff;
        }

        /* Footer */
        footer {
            background: var(--color-bg-alt);
            border-top: 2px solid var(--color-border);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-col h4 {
            color: var(--color-accent-light);
            font-size: 1.1rem;
            margin-bottom: 1rem;
            font-family: var(--font-heading);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--color-border);
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }

        .footer-bottom a {
            color: var(--color-accent-light);
        }

        .bg-alt {
            background: var(--color-bg-alt);
        }

        .bg-card {
            background: var(--color-bg-card);
        }

        .text-center {
            text-align: center;
        }

        .text-left {
            text-align: left;
        }

        .mb-1 {
            margin-bottom: 1rem;
        }

        .mb-2 {
            margin-bottom: 2rem;
        }

        .mb-3 {
            margin-bottom: 3rem;
        }

        .mt-2 {
            margin-top: 2rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-image {
                order: -1;
            }

            .hero-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--color-bg-card);
                padding: 1rem;
                border-radius: var(--radius-md);
                margin-top: 0.5rem;
                gap: 0.8rem;
            }

            .nav-links.show {
                display: flex;
            }

            .nav-actions {
                display: flex;
                gap: 0.5rem;
            }

            .btn-login,
            .btn-signup {
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
            }

            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }

            .grid-4 {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            h1 {
                font-size: 2rem;
            }

            section {
                padding: 2.5rem 0;
            }

            .hero {
                padding: 3rem 0 2.5rem;
            }

            .nutrition-table {
                font-size: 0.8rem;
            }

            .nutrition-table th,
            .nutrition-table td {
                padding: 0.7rem;
            }

            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                bottom: 5rem;
                left: 1rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }

            .hero-content h1 {
                font-size: 1.7rem;
            }

            .btn {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
            }
        }
