/* roulang page: index */
:root {
            --brand-500: #e87d1a;
            --brand-600: #d46510;
            --brand-700: #b04c11;
            --accent-500: #0c8de6;
            --accent-600: #006fc4;
            --surface: #fafaf9;
            --card: #ffffff;
            --muted: #78726c;
            --border: #e7e5e2;
            --text: #1c1917;
            --text-soft: #57534e;
            --radius-sm: 0.625rem;
            --radius-md: 1rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-soft: 0 1px 2px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.05);
            --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 12px rgba(0,0,0,0.07), 0 12px 36px rgba(0,0,0,0.09);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        body { font-family: 'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif; line-height: 1.7; color: #1c1917; background: #fafaf9; overflow-x: hidden; }

        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; border: none; outline: none; }
        input, textarea { font-family: inherit; outline: none; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* Header & Navigation */
        .site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); box-shadow: 0 1px 4px rgba(0,0,0,0.03); transition: all var(--transition-smooth); }
        .site-header.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.08); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .header-inner { height: 60px; padding: 0 16px; } }

        .logo-link { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: #1c1917; letter-spacing: -0.01em; flex-shrink: 0; }
        .logo-link:hover { color: var(--brand-600); }
        .logo-icon { width: 40px; height: 40px; border-radius: var(--radius-sm); background: linear-gradient(135deg, var(--brand-500), var(--brand-700)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.1rem; font-weight: 700; flex-shrink: 0; }
        @media (max-width: 768px) { .logo-link { font-size: 1.1rem; } .logo-icon { width: 34px; height: 34px; font-size: 0.95rem; } }

        .nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
        .nav-links a { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 999px; font-weight: 500; font-size: 0.925rem; color: #57534e; transition: all var(--transition-fast); white-space: nowrap; }
        .nav-links a:hover { color: #1c1917; background: #f5f3f0; }
        .nav-links a.active { color: #fff; background: var(--brand-500); font-weight: 600; }
        .nav-links a.active:hover { background: var(--brand-600); }
        .nav-badge { display: inline-block; padding: 2px 8px; border-radius: 999px; background: #fef2f2; color: #dc2626; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.03em; animation: pulse-badge 2.2s ease-in-out infinite; }
        @keyframes pulse-badge { 0%,100% { opacity:1; } 50% { opacity:0.65; } }
        .nav-cta { display: inline-flex; align-items: center; gap: 6px; padding: 10px 22px; border-radius: 999px; background: var(--brand-500); color: #fff; font-weight: 600; font-size: 0.9rem; transition: all var(--transition-fast); white-space: nowrap; margin-left: 10px; }
        .nav-cta:hover { background: var(--brand-600); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(212,101,16,0.35); color: #fff; }
        .nav-cta:active { transform: translateY(0); }

        /* Mobile Menu */
        .mobile-toggle { display: none; background: none; border: none; width: 40px; height: 40px; border-radius: 10px; align-items: center; justify-content: center; color: #1c1917; font-size: 1.35rem; transition: background var(--transition-fast); }
        .mobile-toggle:hover { background: #f5f3f0; }
        @media (max-width: 860px) {
            .nav-links { display: none; }
            .nav-cta { display: none; }
            .mobile-toggle { display: flex; }
            .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 16px 20px; gap: 4px; box-shadow: 0 12px 32px rgba(0,0,0,0.1); z-index: 99; }
            .nav-links.open a { border-radius: var(--radius-sm); width: 100%; padding: 12px 16px; font-size: 1rem; }
            .nav-links.open .nav-cta-mobile { display: inline-flex; margin-left: 0; margin-top: 6px; width: 100%; justify-content: center; }
        }
        .nav-cta-mobile { display: none; }
        @media (max-width: 860px) { .nav-cta-mobile { display: inline-flex; } }

        /* Section Spacing */
        .section { padding: 72px 0; }
        @media (max-width: 768px) { .section { padding: 48px 0; } }
        .section-sm { padding: 48px 0; }
        @media (max-width: 768px) { .section-sm { padding: 32px 0; } }
        .section-label { display: inline-block; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--brand-600); margin-bottom: 10px; }
        .section-title { font-size: 2.25rem; font-weight: 800; letter-spacing: -0.02em; color: #1c1917; margin-bottom: 12px; line-height: 1.25; }
        @media (max-width: 768px) { .section-title { font-size: 1.7rem; } }
        .section-subtitle { font-size: 1.05rem; color: #78726c; max-width: 600px; line-height: 1.65; }

        /* Hero */
        .hero { position: relative; min-height: 620px; display: flex; align-items: center; overflow: hidden; background: #1c1917; }
        @media (max-width: 768px) { .hero { min-height: 500px; } }
        .hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.55; }
        .hero-overlay { position: absolute; inset: 0; background: linear-gradient(160deg, rgba(28,25,23,0.82) 0%, rgba(28,25,23,0.45) 50%, rgba(28,25,23,0.7) 100%); }
        .hero-content { position: relative; z-index: 2; max-width: 680px; color: #fff; }
        .hero-tag { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,0.13); backdrop-filter: blur(10px); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em; margin-bottom: 20px; border: 1px solid rgba(255,255,255,0.18); }
        .hero-tag-dot { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; animation: pulse-dot 1.8s ease-in-out infinite; }
        @keyframes pulse-dot { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.5; transform:scale(1.6); } }
        .hero h1 { font-size: 3.2rem; font-weight: 900; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 18px; }
        @media (max-width: 768px) { .hero h1 { font-size: 2.1rem; } }
        .hero p { font-size: 1.15rem; color: rgba(255,255,255,0.82); line-height: 1.7; margin-bottom: 32px; max-width: 520px; }
        @media (max-width: 768px) { .hero p { font-size: 1rem; } }
        .hero-btns { display: flex; flex-wrap: wrap; gap: 12px; }
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 0.95rem; transition: all var(--transition-fast); cursor: pointer; }
        .btn-primary { background: var(--brand-500); color: #fff; }
        .btn-primary:hover { background: var(--brand-600); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,101,16,0.4); }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.45); }
        .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.7); transform: translateY(-2px); }
        .btn-outline:active { transform: translateY(0); }
        .btn:focus-visible { outline: 3px solid rgba(232,125,26,0.6); outline-offset: 3px; }

        /* Card Grid */
        .card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        @media (max-width: 1024px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 600px) { .card-grid { grid-template-columns: 1fr; } }
        .card { background: #fff; border-radius: var(--radius-lg); padding: 28px 24px; box-shadow: var(--shadow-card); border: 1px solid var(--border); transition: all var(--transition-smooth); position: relative; overflow: hidden; }
        .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: #d6d3ce; }
        .card-icon { width: 50px; height: 50px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 16px; }
        .card-icon.warm { background: #fef7ee; color: #e87d1a; }
        .card-icon.cool { background: #f0f7ff; color: #0c8de6; }
        .card-icon.green { background: #f0fdf4; color: #16a34a; }
        .card h3 { font-size: 1.15rem; font-weight: 700; color: #1c1917; margin-bottom: 8px; }
        .card p { font-size: 0.925rem; color: #78726c; line-height: 1.6; }
        .card-img { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius-sm); margin-bottom: 16px; }

        /* Category Entry Card */
        .cat-entry { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; background: #fff; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-card); border: 1px solid var(--border); transition: all var(--transition-smooth); }
        .cat-entry:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        @media (max-width: 768px) { .cat-entry { grid-template-columns: 1fr; } }
        .cat-entry-img { width: 100%; height: 100%; min-height: 280px; object-fit: cover; }
        @media (max-width: 768px) { .cat-entry-img { min-height: 200px; } }
        .cat-entry-body { padding: 36px 32px; }
        @media (max-width: 768px) { .cat-entry-body { padding: 24px 20px; } }
        .cat-entry-body h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 10px; color: #1c1917; }
        .cat-entry-body p { color: #78726c; margin-bottom: 18px; line-height: 1.6; }
        .cat-entry-body .btn { display: inline-flex; }

        /* CMS List */
        .cms-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
        @media (max-width: 768px) { .cms-list { grid-template-columns: 1fr; } }
        .cms-item { background: #fff; border-radius: var(--radius-lg); padding: 22px 20px; box-shadow: var(--shadow-soft); border: 1px solid var(--border); transition: all var(--transition-smooth); display: flex; flex-direction: column; gap: 8px; }
        .cms-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: #d6d3ce; }
        .cms-item-cat { display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: #fef7ee; color: #d46510; letter-spacing: 0.03em; align-self: flex-start; }
        .cms-item-title { font-size: 1rem; font-weight: 700; color: #1c1917; line-height: 1.4; }
        .cms-item-title a { color: inherit; }
        .cms-item-title a:hover { color: #d46510; }
        .cms-item-desc { font-size: 0.875rem; color: #78726c; line-height: 1.55; }
        .cms-item-meta { font-size: 0.78rem; color: #a8a29e; display: flex; gap: 12px; align-items: center; }
        .cms-empty { text-align: center; padding: 40px 20px; color: #a8a29e; font-size: 1rem; background: #fff; border-radius: var(--radius-lg); border: 1px dashed var(--border); }

        /* Stats */
        .stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        @media (max-width: 768px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .stats-row { grid-template-columns: 1fr; } }
        .stat-card { text-align: center; padding: 28px 16px; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); border: 1px solid var(--border); }
        .stat-num { font-size: 2.4rem; font-weight: 900; color: #d46510; letter-spacing: -0.02em; }
        .stat-label { font-size: 0.9rem; color: #78726c; margin-top: 4px; }

        /* Steps */
        .steps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        @media (max-width: 768px) { .steps-row { grid-template-columns: 1fr; } }
        .step-card { background: #fff; border-radius: var(--radius-lg); padding: 28px 22px; box-shadow: var(--shadow-soft); border: 1px solid var(--border); text-align: center; position: relative; }
        .step-num { width: 44px; height: 44px; border-radius: 50%; background: var(--brand-500); color: #fff; font-weight: 800; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; }
        .step-card h4 { font-weight: 700; font-size: 1.05rem; color: #1c1917; margin-bottom: 6px; }
        .step-card p { font-size: 0.88rem; color: #78726c; line-height: 1.55; }

        /* FAQ */
        .faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 800px; }
        .faq-item { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; transition: all var(--transition-fast); }
        .faq-item:hover { border-color: #d6d3ce; }
        .faq-q { width: 100%; text-align: left; padding: 18px 22px; background: none; font-weight: 600; font-size: 1rem; color: #1c1917; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
        .faq-q i { transition: transform var(--transition-fast); color: #a8a29e; font-size: 0.85rem; }
        .faq-item.open .faq-q i { transform: rotate(180deg); color: #d46510; }
        .faq-a { padding: 0 22px 18px; font-size: 0.925rem; color: #57534e; line-height: 1.65; display: none; }
        .faq-item.open .faq-a { display: block; }

        /* CTA Section */
        .cta-section { background: linear-gradient(150deg, #1c1917 0%, #2d2720 100%); color: #fff; text-align: center; border-radius: var(--radius-xl); padding: 56px 32px; position: relative; overflow: hidden; }
        .cta-section::before { content:''; position:absolute; inset:0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity:0.12; }
        .cta-section>* { position:relative; z-index:1; }
        .cta-section h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
        @media (max-width: 768px) { .cta-section h2 { font-size: 1.5rem; } }
        .cta-section p { color: rgba(255,255,255,0.75); margin-bottom: 24px; font-size: 1.05rem; }
        .cta-section .btn { font-size: 1rem; padding: 14px 34px; }

        /* Footer */
        .site-footer { background: #1c1917; color: #a8a29e; padding: 48px 0 28px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }
        .footer-brand { font-size: 1.3rem; font-weight: 800; color: #fff; margin-bottom: 10px; }
        .footer-desc { font-size: 0.9rem; color: #78726c; line-height: 1.6; max-width: 300px; }
        .footer-col h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: #d6d3ce; margin-bottom: 14px; }
        .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
        .footer-col a { color: #a8a29e; font-size: 0.9rem; transition: color var(--transition-fast); }
        .footer-col a:hover { color: #fff; }
        .footer-bottom { max-width: 1200px; margin: 32px auto 0; padding: 20px 24px 0; border-top: 1px solid #2d2720; text-align: center; font-size: 0.82rem; color: #78726c; }

        /* Utility */
        .text-center { text-align: center; }
        .mb-0 { margin-bottom: 0 !important; }

/* roulang page: article */
:root {
            --primary: #0b2d52;
            --primary-light: #153e6b;
            --primary-dark: #071d36;
            --accent: #c8963e;
            --accent-light: #e0b45a;
            --accent-dark: #a67a2e;
            --bg: #f5f6fa;
            --bg-white: #ffffff;
            --bg-light: #eef1f7;
            --text: #1a1a2e;
            --text-secondary: #4a4a62;
            --text-muted: #7a7a92;
            --text-light: #9a9aaf;
            --border: #dce0e8;
            --border-light: #eaecf2;
            --shadow-sm: 0 1px 4px rgba(0,0,0,0.04);
            --shadow-md: 0 2px 12px rgba(0,0,0,0.07);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.13);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --content-width: 780px;
        }
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        body{font-family:var(--font-sans);font-size:16px;line-height:1.65;color:var(--text);background:var(--bg);min-height:100vh}
        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition)}
        button,input,select,textarea{font-family:inherit;font-size:inherit}
        ul,ol{list-style:none}
        h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--text)}
        .container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
        .content-container{max-width:var(--content-width);margin:0 auto;padding:0 24px}

        /* Header */
        .site-header{position:sticky;top:0;z-index:100;background:var(--bg-white);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
        .header-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
        .logo-link{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;color:var(--primary);white-space:nowrap;flex-shrink:0}
        .logo-link:hover{color:var(--primary-light)}
        .logo-icon{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;background:var(--primary);color:#fff;border-radius:var(--radius-sm);font-size:1.05rem;font-weight:800;flex-shrink:0;letter-spacing:0}
        .mobile-toggle{display:none;background:none;border:none;font-size:1.4rem;color:var(--text);cursor:pointer;padding:8px;border-radius:var(--radius-sm);transition:background var(--transition)}
        .mobile-toggle:hover{background:var(--bg-light)}
        .nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
        .nav-links li{display:flex}
        .nav-links a{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-size:0.95rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition);white-space:nowrap}
        .nav-links a:hover{color:var(--primary);background:var(--bg-light)}
        .nav-links a.active{color:var(--primary);background:rgba(11,45,82,0.06);font-weight:600}
        .nav-badge{display:inline-flex;align-items:center;font-size:0.7rem;font-weight:700;padding:2px 8px;border-radius:20px;background:linear-gradient(135deg,#e74c3c,#f0625c);color:#fff;letter-spacing:0.5px;animation:pulse-badge 2s ease-in-out infinite}
        @keyframes pulse-badge{0%,100%{opacity:1}50%{opacity:0.75}}
        .nav-cta{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:var(--radius-sm);font-size:0.93rem;font-weight:600;color:#fff!important;background:var(--accent);transition:all var(--transition);white-space:nowrap;flex-shrink:0}
        .nav-cta:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 4px 16px rgba(200,150,62,0.3)}
        .nav-cta-mobile{display:none!important}

        /* Breadcrumb */
        .breadcrumb-wrap{padding:16px 0;background:var(--bg-white);border-bottom:1px solid var(--border-light)}
        .breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:0.88rem;color:var(--text-muted)}
        .breadcrumb a{color:var(--text-secondary);transition:color var(--transition)}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb .sep{color:var(--text-light);font-size:0.7rem}
        .breadcrumb .current{color:var(--text);font-weight:500;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

        /* Article Main */
        .article-main{padding:40px 0 60px}
        .article-card{background:var(--bg-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}
        .article-featured-image{width:100%;max-height:460px;object-fit:cover;display:block;background:var(--bg-light)}
        .article-body{padding:36px 40px 48px}
        .article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px;font-size:0.88rem;color:var(--text-muted)}
        .article-meta .meta-tag{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:20px;background:rgba(11,45,82,0.06);color:var(--primary);font-weight:500;font-size:0.82rem}
        .article-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-light)}
        .article-title{font-size:2rem;font-weight:800;color:var(--primary-dark);margin-bottom:12px;line-height:1.25}
        .article-excerpt{font-size:1.08rem;color:var(--text-secondary);line-height:1.7;padding:16px 20px;background:var(--bg-light);border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin-bottom:28px}
        .article-content{font-size:1.02rem;line-height:1.85;color:var(--text);word-break:break-word}
        .article-content h2{font-size:1.45rem;margin:32px 0 14px;color:var(--primary-dark)}
        .article-content h3{font-size:1.2rem;margin:24px 0 10px;color:var(--primary)}
        .article-content p{margin-bottom:16px}
        .article-content ul,.article-content ol{margin-bottom:16px;padding-left:24px}
        .article-content ul{list-style:disc}
        .article-content ol{list-style:decimal}
        .article-content li{margin-bottom:6px}
        .article-content img{border-radius:var(--radius-md);margin:20px 0;box-shadow:var(--shadow-md)}
        .article-content blockquote{margin:20px 0;padding:16px 22px;background:var(--bg-light);border-left:4px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-secondary);font-style:italic}
        .article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
        .article-content a:hover{color:var(--accent)}
        .article-content code{background:var(--bg-light);padding:2px 7px;border-radius:4px;font-size:0.9em}
        .article-content pre{background:#1a1a2e;color:#e0e0e0;padding:20px;border-radius:var(--radius-md);overflow-x:auto;margin:20px 0;font-size:0.9rem;line-height:1.6}
        .article-tags{margin-top:32px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-top:20px;border-top:1px solid var(--border-light)}
        .article-tags span.label{font-size:0.85rem;color:var(--text-muted);font-weight:500}
        .article-tags .tag{display:inline-block;padding:6px 14px;border-radius:20px;background:var(--bg-light);color:var(--text-secondary);font-size:0.84rem;transition:all var(--transition)}
        .article-tags .tag:hover{background:rgba(11,45,82,0.08);color:var(--primary)}

        /* Not Found */
        .not-found-block{text-align:center;padding:60px 24px}
        .not-found-block .nf-icon{font-size:4rem;color:var(--text-light);margin-bottom:16px}
        .not-found-block h2{font-size:1.6rem;margin-bottom:10px;color:var(--primary-dark)}
        .not-found-block p{color:var(--text-secondary);margin-bottom:24px}
        .btn-back{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;font-size:0.95rem;color:#fff;background:var(--primary);transition:all var(--transition)}
        .btn-back:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:var(--shadow-lg)}

        /* CTA Section */
        .section-cta{padding:56px 0;background:linear-gradient(160deg,var(--primary-dark) 0%,var(--primary) 50%,var(--primary-light) 100%);color:#fff;text-align:center}
        .section-cta .cta-inner{max-width:620px;margin:0 auto;padding:0 24px}
        .section-cta h2{font-size:1.7rem;color:#fff;margin-bottom:12px}
        .section-cta p{color:rgba(255,255,255,0.8);font-size:1rem;margin-bottom:28px;line-height:1.7}
        .btn-cta-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;border-radius:var(--radius-sm);font-weight:700;font-size:1rem;color:var(--primary-dark);background:var(--accent-light);transition:all var(--transition);box-shadow:0 6px 24px rgba(200,150,62,0.35)}
        .btn-cta-primary:hover{background:#f0c870;transform:translateY(-3px);box-shadow:0 10px 32px rgba(200,150,62,0.45)}

        /* Related Section */
        .section-related{padding:48px 0 56px;background:var(--bg)}
        .section-related .section-title{font-size:1.5rem;font-weight:700;color:var(--primary-dark);margin-bottom:28px;text-align:center}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .related-card{background:var(--bg-white);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition);cursor:pointer}
        .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
        .related-card img{width:100%;height:180px;object-fit:cover}
        .related-card .rc-body{padding:18px 20px 22px}
        .related-card .rc-tag{font-size:0.78rem;color:var(--accent);font-weight:600;margin-bottom:6px}
        .related-card h4{font-size:1rem;font-weight:600;color:var(--text);line-height:1.4;margin-bottom:6px}
        .related-card .rc-date{font-size:0.82rem;color:var(--text-muted)}

        /* Footer */
        .site-footer{background:var(--primary-dark);color:rgba(255,255,255,0.8);padding:48px 0 24px}
        .footer-grid{max-width:var(--max-width);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:32px}
        .footer-brand{font-size:1.3rem;font-weight:700;color:#fff;margin-bottom:10px}
        .footer-desc{font-size:0.9rem;line-height:1.7;color:rgba(255,255,255,0.6);max-width:360px}
        .footer-col h4{font-size:0.95rem;color:#fff;margin-bottom:14px;font-weight:600}
        .footer-col ul li{margin-bottom:8px}
        .footer-col ul a{font-size:0.88rem;color:rgba(255,255,255,0.6);transition:color var(--transition)}
        .footer-col ul a:hover{color:var(--accent-light)}
        .footer-bottom{max-width:var(--max-width);margin:0 auto;padding:18px 24px 0;border-top:1px solid rgba(255,255,255,0.12);text-align:center;font-size:0.84rem;color:rgba(255,255,255,0.45)}

        /* Responsive */
        @media (max-width:1024px){
            .related-grid{grid-template-columns:repeat(2,1fr)}
            .article-body{padding:28px 24px 36px}
            .article-title{font-size:1.6rem}
        }
        @media (max-width:768px){
            .header-inner{height:56px}
            .mobile-toggle{display:block}
            .nav-links{display:none;position:absolute;top:56px;left:0;right:0;background:var(--bg-white);flex-direction:column;align-items:stretch;padding:10px 16px;gap:2px;border-bottom:2px solid var(--border);box-shadow:var(--shadow-lg);z-index:99}
            .nav-links.show{display:flex}
            .nav-links a{border-radius:var(--radius-sm);padding:13px 16px;font-size:1rem}
            .nav-cta-desktop{display:none!important}
            .nav-cta-mobile{display:inline-flex!important;justify-content:center;margin-top:8px;font-size:1rem;padding:14px 20px}
            .article-title{font-size:1.4rem}
            .article-body{padding:20px 18px 28px}
            .article-content{font-size:0.98rem}
            .related-grid{grid-template-columns:1fr;gap:16px}
            .related-card img{height:160px}
            .section-cta h2{font-size:1.4rem}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .breadcrumb .current{max-width:180px}
        }
        @media (max-width:520px){
            .container,.content-container,.header-inner{padding-left:14px;padding-right:14px}
            .article-title{font-size:1.25rem}
            .article-featured-image{max-height:240px}
            .article-meta{font-size:0.8rem;gap:10px}
            .article-excerpt{font-size:0.95rem;padding:12px 14px}
            .btn-cta-primary{padding:12px 26px;font-size:0.93rem}
            .section-cta{padding:40px 0}
            .section-related{padding:32px 0 40px}
            .section-related .section-title{font-size:1.25rem}
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a6df5;
            --color-primary-dark: #1254c4;
            --color-primary-light: #e8f1fe;
            --color-accent: #ff6b35;
            --color-accent-hover: #e85a2a;
            --color-bg: #f7f9fc;
            --color-surface: #ffffff;
            --color-text: #1a1a2e;
            --color-text-secondary: #5a5f72;
            --color-text-weak: #8b8fa3;
            --color-border: #e2e6f0;
            --color-border-light: #eef1f7;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.12), 0 8px 20px rgba(0,0,0,0.06);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1240px;
            --header-height: 68px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-text);
            text-decoration: none;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.82;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), #3b82f6);
            color: #fff;
            font-size: 1.05rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 600;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            padding: 2px 8px;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 700;
            background: var(--color-accent);
            color: #fff;
            letter-spacing: 0.03em;
            animation: badgePulse 2s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.08); }
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(255,107,53,0.3);
        }

        .nav-cta:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 4px 18px rgba(255,107,53,0.42);
            transform: translateY(-1px);
        }

        .nav-cta-mobile {
            display: none;
        }

        .mobile-toggle {
            display: none;
            font-size: 1.35rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: var(--color-border-light);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            padding: 72px 0 64px;
            background: linear-gradient(160deg, #f0f5ff 0%, #e8f1fe 30%, #f7f9fc 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26,109,245,0.07) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,107,53,0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .category-hero-text {
            flex: 1;
            min-width: 0;
        }

        .category-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--color-text-weak);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .category-breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }

        .category-breadcrumb a:hover {
            color: var(--color-primary);
        }

        .category-breadcrumb .sep {
            color: #c0c5d0;
        }

        .category-breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        .category-hero-text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            line-height: 1.2;
            margin-bottom: 14px;
        }

        .category-hero-text .hero-desc {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 560px;
            margin-bottom: 24px;
        }

        .category-hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 2px;
        }

        .category-hero-image {
            flex-shrink: 0;
            width: 320px;
            height: 240px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .category-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .category-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
            pointer-events: none;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 56px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-weak);
        }

        /* ===== Article Grid ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .article-card-image {
            position: relative;
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #eef1f7;
        }

        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .article-card:hover .article-card-image img {
            transform: scale(1.06);
        }

        .article-card-body {
            padding: 20px 20px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .article-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--color-primary-light);
            color: var(--color-primary);
            letter-spacing: 0.01em;
        }

        .article-card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-body h3 a {
            color: inherit;
            transition: color var(--transition-fast);
        }

        .article-card-body h3 a:hover {
            color: var(--color-primary);
        }

        .article-card-excerpt {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-weak);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }

        .article-card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .article-card-meta i {
            font-size: 0.75rem;
            margin-right: 4px;
        }

        /* ===== Featured Panel ===== */
        .featured-panel {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .featured-panel-image {
            flex-shrink: 0;
            width: 280px;
            height: 200px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .featured-panel-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-panel-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .featured-panel-content p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(26,109,245,0.3);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 4px 18px rgba(26,109,245,0.42);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary-dark);
            color: var(--color-primary-dark);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 2px 10px rgba(255,107,53,0.3);
        }

        .btn-accent:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 4px 18px rgba(255,107,53,0.42);
            transform: translateY(-1px);
        }

        /* ===== Steps Section ===== */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), #3b82f6);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .step-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
        }

        /* ===== Tags Cloud ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-cloud-item {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            background: var(--color-surface);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .tag-cloud-item:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .tag-cloud-item.hot {
            background: var(--color-primary-light);
            color: var(--color-primary);
            border-color: transparent;
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.975rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            transition: transform var(--transition-normal);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,107,53,0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26,109,245,0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            position: relative;
            z-index: 1;
            font-size: 1.85rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-section p {
            position: relative;
            z-index: 1;
            font-size: 1rem;
            opacity: 0.85;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-accent {
            position: relative;
            z-index: 1;
            font-size: 1rem;
            padding: 13px 30px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border-light);
            padding: 48px 0 0;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px 36px;
            border-bottom: 1px solid var(--color-border-light);
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col a {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            text-align: center;
            padding: 18px 24px;
            font-size: 0.8rem;
            color: var(--color-text-weak);
            max-width: var(--max-width);
            margin: 0 auto;
        }

        /* ===== Pagination ===== */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 6px;
            margin-top: 36px;
        }

        .pagination a, .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            color: var(--color-text-secondary);
            border: 1px solid transparent;
        }

        .pagination a:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
            border-color: var(--color-primary-light);
        }

        .pagination .current {
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            border-color: var(--color-primary);
        }

        .pagination .dots {
            color: var(--color-text-weak);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }

            .category-hero-inner {
                flex-direction: column;
                text-align: center;
            }

            .category-hero-text .hero-desc {
                max-width: 100%;
            }

            .category-hero-stats {
                justify-content: center;
            }

            .category-hero-image {
                width: 260px;
                height: 190px;
            }

            .featured-panel {
                flex-direction: column;
                text-align: center;
            }

            .featured-panel-image {
                width: 100%;
                max-width: 400px;
                height: 180px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }

            .mobile-toggle {
                display: block;
            }

            nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                transform: translateY(-110%);
                opacity: 0;
                transition: all var(--transition-normal);
                z-index: 999;
            }

            nav.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-links {
                flex-direction: column;
                gap: 4px;
                align-items: stretch;
            }

            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }

            .nav-cta {
                display: none;
            }

            .nav-cta-mobile {
                display: inline-flex;
                justify-content: center;
                margin-top: 8px;
                background: var(--color-accent);
                color: #fff;
                border-radius: var(--radius-sm);
                font-weight: 600;
            }

            .nav-cta-mobile:hover {
                background: var(--color-accent-hover);
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .steps-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .category-hero {
                padding: 44px 0 36px;
            }

            .category-hero-text h1 {
                font-size: 1.8rem;
            }

            .category-hero-text .hero-desc {
                font-size: 0.95rem;
            }

            .category-hero-stats {
                gap: 20px;
            }

            .hero-stat .stat-number {
                font-size: 1.4rem;
            }

            .category-hero-image {
                width: 100%;
                max-width: 320px;
                height: 160px;
            }

            .featured-panel {
                padding: 24px;
                gap: 20px;
            }

            .featured-panel-content h3 {
                font-size: 1.15rem;
            }

            .cta-section {
                padding: 36px 24px;
                border-radius: var(--radius-lg);
            }

            .cta-section h2 {
                font-size: 1.4rem;
            }

            .section {
                padding: 36px 0;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }

            .footer-desc {
                max-width: 100%;
            }

            .tags-cloud {
                gap: 8px;
            }

            .tag-cloud-item {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero-text h1 {
                font-size: 1.5rem;
            }

            .hero-stat .stat-number {
                font-size: 1.2rem;
            }

            .hero-stat .stat-label {
                font-size: 0.75rem;
            }

            .category-hero-stats {
                gap: 14px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }

            .pagination a, .pagination span {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
        }