/* roulang page: index */
:root {
            --clr-primary: #8B5CF6;
            --clr-primary-light: #A78BFA;
            --clr-primary-pale: #C4B5FD;
            --clr-secondary: #34D399;
            --clr-gold: #F4C95D;
            --clr-pink: #FB7185;
            --clr-bg-deep: #17121F;
            --clr-bg-mid: #241B33;
            --clr-bg-panel: rgba(28,22,43,0.86);
            --clr-border: #3A2F50;
            --clr-bg-light: #F2EDFA;
            --clr-text-primary: #F5F1FF;
            --clr-text-secondary: #C9BFD9;
            --clr-text-muted: #8F86A6;
            --clr-border-glow: rgba(139,92,246,0.5);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-card: 0 12px 30px rgba(0,0,0,0.35);
            --shadow-glow: 0 0 18px rgba(139,92,246,0.5);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --transition-base: all 0.25s ease;
            --transition-slow: all 0.4s cubic-bezier(0.4,0,0.2,1);
        }
        *,*::before,*::after { box-sizing: border-box; margin:0; padding:0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--clr-text-primary);
            background: radial-gradient(ellipse at 20% 10%, #241B33 0%, #17121F 55%, #120E1C 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition-base); }
        a:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 2px; border-radius: 4px; }
        button { font-family: inherit; cursor: pointer; }
        button:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 2px; }
        input, select, textarea { font-family: inherit; }
        input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 0; }
        .container { max-width: 1200px; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
        @media (min-width: 640px) { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }
        @media (min-width: 1024px) { .container { padding-left: 2rem; padding-right: 2rem; } }
        .section { padding: 4rem 0; }
        @media (min-width: 1024px) { .section { padding: 6rem 0; } }
        .section-title { font-size: clamp(1.5rem,3vw,2.25rem); font-weight: 800; color: var(--clr-text-primary); margin-bottom: 0.75em; letter-spacing: 0.02em; }
        .section-desc { font-size: 16px; color: var(--clr-text-secondary); max-width: 720px; margin-bottom: 2.5rem; }
        .highlight { color: var(--clr-primary-light); }
        .tag { display: inline-block; padding: 0.2rem 0.8rem; border-radius: 999px; font-size: 13px; font-weight: 500; border: 1px solid; transition: var(--transition-base); }
        .tag-purple { background: rgba(139,92,246,0.15); border-color: var(--clr-primary); color: var(--clr-primary-pale); }
        .tag-gold { background: rgba(244,201,93,0.12); border-color: var(--clr-gold); color: var(--clr-gold); }
        .tag-green { background: rgba(52,211,153,0.12); border-color: var(--clr-secondary); color: var(--clr-secondary); }
        .tag-pink { background: rgba(251,113,133,0.12); border-color: var(--clr-pink); color: var(--clr-pink); }
        .btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.8rem; border-radius: 999px; font-weight: 700; font-size: 15px; transition: var(--transition-base); border: none; line-height: 1.4; }
        .btn-primary { background: linear-gradient(135deg,#8B5CF6,#C4B5FD); color: #17121F; box-shadow: 0 4px 14px rgba(139,92,246,0.35); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 24px rgba(139,92,246,0.55); background: linear-gradient(135deg,#9B6CF7,#D0C5FE); }
        .btn-secondary { background: transparent; color: var(--clr-primary-light); border: 1px solid var(--clr-primary); }
        .btn-secondary:hover { background: rgba(139,92,246,0.12); border-color: var(--clr-primary-light); transform: translateY(-2px); }
        .btn-dark { background: rgba(23,18,31,0.7); color: #F5F1FF; border: 1px solid var(--clr-border); }
        .btn-dark:hover { background: rgba(139,92,246,0.2); border-color: var(--clr-primary); transform: translateY(-2px); }
        .card { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); transition: var(--transition-base); overflow: hidden; position: relative; }
        .card:hover { border-color: rgba(139,92,246,0.7); box-shadow: 0 14px 36px rgba(0,0,0,0.45), 0 0 20px rgba(139,92,246,0.2); transform: translateY(-3px); }
        .card-glow-gold { border-color: rgba(244,201,93,0.5); }
        .card-glow-gold:hover { box-shadow: 0 14px 36px rgba(0,0,0,0.45), 0 0 24px rgba(244,201,93,0.25); }
        .card-img { width: 100%; height: 180px; object-fit: cover; }
        @media (min-width: 768px) { .card-img { height: 200px; } }
        .card-body { padding: 1.25rem; }
        .card-title { font-size: 18px; font-weight: 700; margin-bottom: 0.6em; color: var(--clr-text-primary); }
        .card-text { font-size: 14px; color: var(--clr-text-secondary); line-height: 1.7; }
        .metric-value { font-size: clamp(1.6rem,3vw,2.5rem); font-weight: 800; color: var(--clr-primary-light); line-height: 1.2; }
        .metric-label { font-size: 14px; color: var(--clr-text-muted); }
        .badge-diamond { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; transform: rotate(45deg); border-radius: 4px; background: linear-gradient(135deg,var(--clr-primary),var(--clr-primary-pale)); color: #17121F; font-size: 14px; font-weight: 800; }
        .badge-diamond span { transform: rotate(-45deg); }
        .progress-bar { width: 100%; height: 8px; border-radius: 999px; background: rgba(58,47,80,0.6); overflow: hidden; }
        .progress-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg,var(--clr-primary),var(--clr-secondary)); transition: width 0.8s ease; }
        .debuff-card { background: rgba(251,113,133,0.06); border: 1px solid rgba(251,113,133,0.4); border-radius: var(--radius-lg); padding: 1.5rem; transition: var(--transition-base); }
        .debuff-card:hover { background: rgba(251,113,133,0.12); border-color: var(--clr-pink); transform: translateY(-2px); }
        .step-node { display: flex; align-items: center; gap: 0.75rem; padding: 1rem 1.25rem; background: rgba(139,92,246,0.08); border: 1px solid rgba(139,92,246,0.35); border-radius: var(--radius-md); transition: var(--transition-base); }
        .step-node:hover { background: rgba(139,92,246,0.18); border-color: var(--clr-primary); }
        .step-num { flex-shrink: 0; width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,var(--clr-primary),var(--clr-secondary)); color: #17121F; font-weight: 800; font-size: 18px; border-radius: 8px; transform: rotate(45deg); }
        .step-num span { transform: rotate(-45deg); }
        .faq-item { background: rgba(28,22,43,0.7); border: 1px solid var(--clr-border); border-radius: var(--radius-md); margin-bottom: 0.8rem; overflow: hidden; transition: var(--transition-base); }
        .faq-item:hover { border-color: rgba(139,92,246,0.5); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; cursor: pointer; font-weight: 600; color: var(--clr-text-primary); background: transparent; border: none; width: 100%; text-align: left; font-size: 15px; }
        .faq-icon { flex-shrink: 0; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; background: rgba(139,92,246,0.2); border-radius: 4px; transform: rotate(45deg); transition: var(--transition-base); }
        .faq-icon span { transform: rotate(-45deg); font-size: 16px; color: var(--clr-primary-light); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; padding: 0 1.25rem; color: var(--clr-text-secondary); font-size: 14px; line-height: 1.8; }
        .faq-answer.open { max-height: 400px; padding: 0 1.25rem 1.25rem; }
        .faq-item.active { background: var(--clr-bg-light); border-color: var(--clr-primary); }
        .faq-item.active .faq-question { color: #241B33; }
        .faq-item.active .faq-icon { background: var(--clr-primary); }
        .faq-item.active .faq-icon span { color: #FFFFFF; }
        .faq-item.active .faq-answer { color: #4A3E5E; }
        .list-item-link { display: flex; align-items: center; gap: 0.8rem; padding: 0.7rem 0; border-bottom: 1px solid var(--clr-border); transition: var(--transition-base); }
        .list-item-link:hover { background: rgba(139,92,246,0.08); padding-left: 0.5rem; border-radius: 4px; }
        .rank-number { flex-shrink: 0; width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; border-radius: 8px; font-weight: 800; font-size: 14px; }
        .rank-1 { background: linear-gradient(135deg,#F4C95D,#F59E0B); color: #17121F; box-shadow: 0 0 14px rgba(244,201,93,0.5); }
        .rank-2 { background: linear-gradient(135deg,#A78BFA,#8B5CF6); color: #FFFFFF; }
        .rank-3 { background: linear-gradient(135deg,#34D399,#10B981); color: #17121F; }
        .rank-other { background: rgba(139,92,246,0.2); color: var(--clr-primary-light); }
        .hover-underline { position: relative; }
        .hover-underline::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--clr-primary-light); transition: width 0.3s ease; }
        .hover-underline:hover::after { width: 100%; }
        .diamond-divider { width: 12px; height: 12px; background: var(--clr-primary); transform: rotate(45deg); margin: 0 auto; border-radius: 2px; }
        .hero-bg { background-image: linear-gradient(rgba(23,18,31,0.75), rgba(23,18,31,0.85)), url('/assets/images/9cdc3927daaddbf7.webp'); background-size: cover; background-position: center; }
        .cta-bg { background-image: linear-gradient(rgba(23,18,31,0.78), rgba(23,18,31,0.9)), url('/assets/images/1cb36559b408988b.webp'); background-size: cover; background-position: center; }
        .sticky-nav { position: sticky; top: 0; z-index: 50; background: rgba(23,18,31,0.85); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--clr-border); }
        .nav-link { font-size: 14px; font-weight: 500; color: var(--clr-text-secondary); padding: 0.4rem 0.6rem; transition: var(--transition-base); position: relative; }
        .nav-link:hover { color: var(--clr-text-primary); }
        .nav-link.active { color: var(--clr-primary-light); font-weight: 700; }
        .nav-link.active::after { content: ''; position: absolute; left: 50%; transform: translateX(-50%); bottom: -4px; width: 6px; height: 6px; background: var(--clr-primary-light); border-radius: 2px; }
        .navbar { box-shadow: 0 4px 16px rgba(0,0,0,0.3); }
        .hero-card { background: rgba(28,22,43,0.9); border: 1px solid rgba(139,92,246,0.5); border-radius: var(--radius-xl); box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 30px rgba(139,92,246,0.25); padding: 1.25rem; }
        .hero-card .card-img-wrap { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 1rem; }
        .hero-card .card-img-wrap img { width: 100%; height: 220px; object-fit: cover; }
        .stat-bar { height: 6px; border-radius: 999px; background: rgba(58,47,80,0.5); overflow: hidden; }
        .stat-bar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg,var(--clr-primary),var(--clr-secondary)); }
        .hex-icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background: rgba(139,92,246,0.15); border: 1px solid rgba(139,92,246,0.4); border-radius: 12px; transition: var(--transition-base); }
        .hex-icon:hover { background: rgba(139,92,246,0.3); border-color: var(--clr-primary); transform: rotate(6deg); }
        .hex-icon i { font-size: 24px; color: var(--clr-primary-light); }
        .scene-card { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition-base); }
        .scene-card:hover { border-color: rgba(139,92,246,0.6); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.4); }
        .scene-card img { width: 100%; height: 150px; object-fit: cover; }
        .chip { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.55rem 1.2rem; border-radius: 999px; background: rgba(139,92,246,0.1); border: 1px solid rgba(139,92,246,0.35); font-size: 14px; font-weight: 500; color: var(--clr-text-secondary); transition: var(--transition-base); }
        .chip:hover { background: rgba(139,92,246,0.25); color: var(--clr-text-primary); border-color: var(--clr-primary); }
        .signature-card { background: rgba(28,22,43,0.85); border: 1px solid rgba(244,201,93,0.4); border-radius: var(--radius-lg); padding: 1.5rem; transition: var(--transition-base); }
        .signature-card:hover { border-color: var(--clr-gold); transform: translateY(-3px); box-shadow: 0 12px 28px rgba(0,0,0,0.4); }
        .avatar-circle { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg,var(--clr-primary),var(--clr-secondary)); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 19px; color: #17121F; flex-shrink: 0; }
        .stars { color: var(--clr-gold); font-size: 14px; display: flex; gap: 0.15rem; }
        .form-input { width: 100%; padding: 0.8rem 1.1rem; border-radius: var(--radius-md); background: rgba(23,18,31,0.8); border: 1px solid var(--clr-border); color: var(--clr-text-primary); font-size: 15px; transition: var(--transition-base); }
        .form-input:focus { border-color: var(--clr-primary); box-shadow: 0 0 0 3px rgba(139,92,246,0.25) ; }
        .form-input::placeholder { color: var(--clr-text-muted); }
        #mobile-menu { display: none; }
        @media (max-width: 767px) {
            #mobile-menu { display: block; }
            .mobile-menu-panel { position: fixed; top: 64px; right: 0; width: 260px; max-height: 80vh; background: rgba(23,18,31,0.96); border-left: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); z-index: 45; padding: 1.5rem; overflow-y: auto; border-radius: 0 0 0 var(--radius-lg); display: none; }
            .mobile-menu-panel.open { display: block; }
            .mobile-menu-panel a { display: block; padding: 0.8rem 0; border-bottom: 1px solid rgba(58,47,80,0.4); font-size: 16px; color: var(--clr-text-secondary); }
            .mobile-menu-panel a:hover { color: var(--clr-primary-light); }
        }
        @media (max-width: 1024px) {
            .desktop-nav-links { display: none !important; }
        }
        @media (min-width: 1025px) {
            #mobile-menu { display: none !important; }
            .mobile-menu-panel { display: none !important; }
        }
        .footer { background: #120E1C; border-top: 1px solid var(--clr-border); }
        .footer-col { display: flex; flex-direction: column; gap: 0.5rem; }
        .footer-col a { color: var(--clr-text-muted); font-size: 14px; transition: var(--transition-base); }
        .footer-col a:hover { color: var(--clr-primary-light); }
        .footer-heading { font-weight: 700; font-size: 15px; color: var(--clr-text-primary); margin-bottom: 0.8rem; }
        .gradient-text { background: linear-gradient(135deg,#A78BFA,#34D399); -webkit-background-clip: text; background-clip: text; color: transparent; }
        .deco-diamond { position: absolute; width: 10px; height: 10px; background: rgba(139,92,246,0.4); transform: rotate(45deg); border-radius: 2px; }
        .img-fade { animation: fadeIn 0.6s ease; }
        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        .card-img-hover { overflow: hidden; }
        .card-img-hover img { transition: transform 0.5s ease; }
        .card-img-hover:hover img { transform: scale(1.05); }
        .security-item { display: flex; align-items: flex-start; gap: 0.7rem; }
        .security-item i { color: var(--clr-secondary); font-size: 20px; margin-top: 0.2rem; }
        .resource-tier { background: rgba(28,22,43,0.7); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); padding: 1.5rem; transition: var(--transition-base); position: relative; overflow: hidden; }
        .resource-tier:hover { border-color: var(--clr-primary); transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0,0,0,0.4); }
        .resource-tier.featured { border-color: rgba(244,201,93,0.6); background: rgba(28,22,43,0.85); }
        .resource-tier.featured::before { content: ''; position: absolute; top: -20px; right: -20px; width: 80px; height: 80px; background: linear-gradient(135deg,var(--clr-gold),transparent); border-radius: 50%; opacity: 0.3; }
        .tier-badge { display: inline-block; padding: 0.2rem 0.7rem; border-radius: 999px; font-size: 12px; font-weight: 700; letter-spacing: 0.05em; }
        .tier-badge-free { background: rgba(139,92,246,0.2); color: var(--clr-primary-pale); border: 1px solid var(--clr-primary); }
        .tier-badge-pro { background: rgba(52,211,153,0.2); color: var(--clr-secondary); border: 1px solid var(--clr-secondary); }
        .tier-badge-full { background: rgba(244,201,93,0.2); color: var(--clr-gold); border: 1px solid var(--clr-gold); }
        .float-cta { position: fixed; bottom: 0; left: 0; right: 0; z-index: 40; background: rgba(23,18,31,0.92); backdrop-filter: blur(10px); border-top: 1px solid var(--clr-primary); padding: 0.6rem 0; display: none; }
        @media (max-width: 767px) { .float-cta { display: block; } }
        .qr-placeholder { width: 110px; height: 110px; background: rgba(255,255,255,0.06); border: 1px dashed rgba(139,92,246,0.6); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: var(--clr-text-muted); font-size: 12px; }

/* roulang page: category1 */
:root {
            --clr-primary: #8B5CF6;
            --clr-primary-light: #A78BFA;
            --clr-primary-pale: #C4B5FD;
            --clr-secondary: #34D399;
            --clr-gold: #F4C95D;
            --clr-pink: #FB7185;
            --clr-bg-deep: #17121F;
            --clr-bg-mid: #241B33;
            --clr-bg-panel: rgba(28,22,43,0.86);
            --clr-border: #3A2F50;
            --clr-bg-light: #F2EDFA;
            --clr-text-primary: #F5F1FF;
            --clr-text-secondary: #C9BFD9;
            --clr-text-muted: #8F86A6;
            --clr-border-glow: rgba(139,92,246,0.5);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-card: 0 12px 30px rgba(0,0,0,0.35);
            --shadow-glow: 0 0 18px rgba(139,92,246,0.5);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --transition-base: all 0.25s ease;
            --transition-slow: all 0.4s cubic-bezier(0.4,0,0.2,1);
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--clr-text-primary);
            background: radial-gradient(ellipse at 20% 10%, #241B33 0%, #17121F 55%, #120E1C 100%);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition-base); }
        a:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 2px; border-radius: 4px; }
        button { font-family: inherit; cursor: pointer; background: none; border: none; }
        button:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 2px; }
        input, select, textarea { font-family: inherit; }
        input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 0; }
        ::selection { background: rgba(139,92,246,0.4); color: #fff; }

        .container { max-width: 1200px; margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
        @media (min-width: 640px) {
            .container { padding-left: 2rem; padding-right: 2rem; }
        }
        @media (min-width: 1024px) {
            .container { padding-left: 2.5rem; padding-right: 2.5rem; }
        }

        .section { padding: 4rem 0; }
        @media (min-width: 1024px) {
            .section { padding: 6rem 0; }
        }

        .section-title { font-size: clamp(1.5rem,3vw,2.25rem); font-weight: 800; color: var(--clr-text-primary); margin-bottom: 0.5rem; letter-spacing: 0.02em; line-height: 1.3; }
        .section-desc { font-size: 16px; color: var(--clr-text-secondary); max-width: 720px; margin-bottom: 2.5rem; line-height: 1.8; }

        .tag { display: inline-block; padding: 0.2rem 0.8rem; border-radius: 999px; font-size: 13px; font-weight: 500; border: 1px solid; transition: var(--transition-base); line-height: 1.6; }
        .tag-purple { background: rgba(139,92,246,0.15); border-color: var(--clr-primary); color: var(--clr-primary-pale); }
        .tag-gold { background: rgba(244,201,93,0.12); border-color: var(--clr-gold); color: var(--clr-gold); }
        .tag-green { background: rgba(52,211,153,0.12); border-color: var(--clr-secondary); color: var(--clr-secondary); }
        .tag-pink { background: rgba(251,113,133,0.12); border-color: var(--clr-pink); color: var(--clr-pink); }

        .btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.8rem; border-radius: 999px; font-weight: 700; font-size: 15px; transition: var(--transition-base); border: none; line-height: 1.4; justify-content: center; }
        .btn-primary { background: linear-gradient(135deg,#8B5CF6,#C4B5FD); color: #17121F; box-shadow: 0 4px 14px rgba(139,92,246,0.35); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 24px rgba(139,92,246,0.55); background: linear-gradient(135deg,#9B6CF7,#D0C5FE); }
        .btn-secondary { background: transparent; color: var(--clr-primary-light); border: 1px solid var(--clr-primary); }
        .btn-secondary:hover { background: rgba(139,92,246,0.12); border-color: var(--clr-primary-light); transform: translateY(-2px); }
        .btn-dark { background: rgba(23,18,31,0.7); color: #F5F1FF; border: 1px solid var(--clr-border); }
        .btn-dark:hover { background: rgba(139,92,246,0.2); border-color: var(--clr-primary); transform: translateY(-2px); }

        .card { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); transition: var(--transition-base); overflow: hidden; position: relative; }
        .card:hover { border-color: rgba(139,92,246,0.7); box-shadow: 0 14px 36px rgba(0,0,0,0.45), 0 0 20px rgba(139,92,246,0.2); transform: translateY(-3px); }
        .card-glow-gold { border-color: rgba(244,201,93,0.5); }
        .card-glow-gold:hover { box-shadow: 0 14px 36px rgba(0,0,0,0.45), 0 0 24px rgba(244,201,93,0.25); }
        .card-img { width: 100%; height: 180px; object-fit: cover; }
        @media (min-width: 768px) {
            .card-img { height: 200px; }
        }
        .card-body { padding: 1.25rem 1.5rem 1.5rem; }
        .card-title { font-size: 18px; font-weight: 700; margin-bottom: 0.6em; color: var(--clr-text-primary); line-height: 1.4; }
        .card-text { font-size: 14px; color: var(--clr-text-secondary); line-height: 1.7; }

        .badge-diamond { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; transform: rotate(45deg); border-radius: 4px; background: linear-gradient(135deg,var(--clr-primary),var(--clr-primary-pale)); color: #17121F; font-size: 14px; font-weight: 800; flex-shrink: 0; }
        .badge-diamond span { transform: rotate(-45deg); }

        .faq-item { background: rgba(28,22,43,0.7); border: 1px solid var(--clr-border); border-radius: var(--radius-md); margin-bottom: 0.8rem; overflow: hidden; transition: var(--transition-base); }
        .faq-item:hover { border-color: rgba(139,92,246,0.5); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; cursor: pointer; font-weight: 600; color: var(--clr-text-primary); gap: 1rem; }
        .faq-question .faq-icon { flex-shrink: 0; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; background: rgba(139,92,246,0.15); border-radius: 4px; color: var(--clr-primary-light); transition: var(--transition-base); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; background: rgba(139,92,246,0.06); }
        .faq-answer-inner { padding: 0 1.25rem 1.25rem; color: var(--clr-text-secondary); font-size: 15px; line-height: 1.8; }
        .faq-item.open .faq-answer { max-height: 500px; }
        .faq-item.open .faq-icon { transform: rotate(45deg); background: var(--clr-secondary); color: #17121F; }

        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(23,18,31,0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--clr-border);
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .nav-link {
            color: var(--clr-text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 0.5rem 0.25rem;
            position: relative;
            transition: var(--transition-base);
            letter-spacing: 0.01em;
        }
        .nav-link:hover { color: var(--clr-text-primary); }
        .nav-link.active { color: var(--clr-primary-light); font-weight: 700; }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -4px;
            width: 14px;
            height: 14px;
            background: linear-gradient(135deg,var(--clr-primary),var(--clr-secondary));
            border-radius: 2px;
            transform: translateX(-50%) rotate(45deg);
            opacity: 0.9;
        }
        .mobile-menu-panel {
            display: none;
            background: rgba(23,18,31,0.96);
            border-bottom: 1px solid var(--clr-border);
            flex-direction: column;
            gap: 0.5rem;
            padding: 1rem 1.5rem 1.5rem;
            backdrop-filter: blur(14px);
        }
        .mobile-menu-panel.open { display: flex; }
        .mobile-menu-panel a {
            color: var(--clr-text-secondary);
            font-weight: 500;
            padding: 0.5rem 0;
            display: block;
            transition: var(--transition-base);
        }
        .mobile-menu-panel a:hover { color: var(--clr-primary-light); }

        .category-hero {
            position: relative;
            min-height: 340px;
            padding: 4rem 0 3rem;
            background-image: url('/assets/images/9cdc3927daaddbf7.webp');
            background-size: cover;
            background-position: center;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23,18,31,0.88) 0%, rgba(23,18,31,0.7) 50%, rgba(36,27,51,0.85) 100%);
            z-index: 1;
        }
        .category-hero .container { position: relative; z-index: 2; }
        .category-hero h1 {
            font-size: clamp(2rem,5vw,3.5rem);
            font-weight: 800;
            color: var(--clr-text-primary);
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
            line-height: 1.25;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 14px;
            color: var(--clr-text-muted);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--clr-primary-light); }
        .breadcrumb a:hover { color: var(--clr-primary-pale); }
        .breadcrumb .separator { color: var(--clr-text-muted); }

        .chip-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.2rem;
            border-radius: 999px;
            background: rgba(28,22,43,0.7);
            border: 1px solid var(--clr-border);
            color: var(--clr-text-secondary);
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .chip-link:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary-light);
            background: rgba(139,92,246,0.12);
            transform: translateY(-1px);
        }

        .list-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--clr-border);
            transition: var(--transition-base);
        }
        .list-item:hover { background: rgba(139,92,246,0.06); border-radius: 8px; padding-left: 0.5rem; padding-right: 0.5rem; }
        .list-item:last-child { border-bottom: none; }
        .list-thumb {
            width: 72px;
            height: 56px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
            border: 1px solid var(--clr-border);
        }
        .list-content { flex: 1; min-width: 0; }
        .list-title { font-weight: 600; font-size: 15px; color: var(--clr-text-primary); margin-bottom: 0.3rem; line-height: 1.5; }
        .list-meta { font-size: 13px; color: var(--clr-text-muted); display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.9rem 1.25rem;
            border-radius: var(--radius-md);
            background: rgba(28,22,43,0.5);
            border: 1px solid var(--clr-border);
            margin-bottom: 0.8rem;
            transition: var(--transition-base);
        }
        .rank-item:hover { border-color: rgba(139,92,246,0.5); background: rgba(139,92,246,0.08); }
        .rank-item .rank-number {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-weight: 800;
            font-size: 16px;
            flex-shrink: 0;
        }
        .rank-item.rank-1 .rank-number { background: linear-gradient(135deg,#F4C95D,#F59E0B); color: #17121F; }
        .rank-item.rank-2 .rank-number { background: rgba(196,181,253,0.25); color: var(--clr-primary-pale); }
        .rank-item.rank-3 .rank-number { background: rgba(52,211,153,0.18); color: var(--clr-secondary); }
        .rank-item.rank-4 .rank-number, .rank-item.rank-5 .rank-number { background: rgba(139,92,246,0.15); color: var(--clr-text-secondary); }
        .rank-item .rank-body { flex: 1; }
        .rank-item .rank-title { font-weight: 600; font-size: 15px; color: var(--clr-text-primary); }
        .rank-item .rank-progress {
            height: 6px;
            background: rgba(139,92,246,0.2);
            border-radius: 999px;
            margin-top: 0.4rem;
            overflow: hidden;
        }
        .rank-item .rank-progress-bar {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg,var(--clr-primary),var(--clr-secondary));
            transition: width 0.6s ease;
        }

        .step-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem;
            border-radius: var(--radius-lg);
            background: rgba(28,22,43,0.55);
            border: 1px solid var(--clr-border);
            transition: var(--transition-base);
        }
        .step-item:hover { border-color: rgba(139,92,246,0.5); }
        .step-item .step-diamond {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            transform: rotate(45deg);
            border-radius: 6px;
            background: linear-gradient(135deg,var(--clr-primary),var(--clr-primary-pale));
            color: #17121F;
            font-weight: 800;
            font-size: 16px;
        }
        .step-item .step-diamond span { transform: rotate(-45deg); }
        .step-item .step-content { flex: 1; }
        .step-item .step-title { font-weight: 700; font-size: 16px; color: var(--clr-text-primary); margin-bottom: 0.3rem; }
        .step-item .step-desc { font-size: 14px; color: var(--clr-text-secondary); line-height: 1.7; }

        .cta-panel {
            position: relative;
            border-radius: var(--radius-xl);
            padding: 2.5rem 2rem;
            background: linear-gradient(135deg, rgba(139,92,246,0.18) 0%, rgba(23,18,31,0.9) 100%);
            border: 1px solid rgba(139,92,246,0.4);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            text-align: center;
        }
        .cta-panel h2 { font-size: 1.75rem; font-weight: 800; color: var(--clr-text-primary); margin-bottom: 0.75rem; line-height: 1.3; }
        .cta-panel p { font-size: 16px; color: var(--clr-text-secondary); margin-bottom: 1.5rem; max-width: 560px; margin-left: auto; margin-right: auto; }

        .footer {
            background: #120E1C;
            border-top: 1px solid var(--clr-border);
        }
        .footer .footer-col { display: flex; flex-direction: column; gap: 0.5rem; }
        .footer .footer-heading { font-weight: 700; color: var(--clr-text-primary); font-size: 15px; margin-bottom: 0.5rem; }
        .footer .footer-col a { color: var(--clr-text-muted); font-size: 14px; transition: var(--transition-base); }
        .footer .footer-col a:hover { color: var(--clr-primary-light); }

        .diamond-decor {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: linear-gradient(135deg,var(--clr-primary),var(--clr-secondary));
            border-radius: 2px;
            transform: rotate(45deg);
            flex-shrink: 0;
        }

        @media (max-width: 767px) {
            .category-hero { min-height: 280px; padding: 3rem 0 2rem; }
            .cta-panel { padding: 2rem 1.25rem; }
            .cta-panel h2 { font-size: 1.4rem; }
            .step-item { flex-direction: column; gap: 0.75rem; }
            .rank-item { padding: 0.75rem 1rem; }
            .section { padding: 3rem 0; }
            @media (min-width: 1024px) {
                .section { padding: 6rem 0; }
            }
        }

/* roulang page: article */
:root {
            --clr-primary: #8B5CF6;
            --clr-primary-light: #A78BFA;
            --clr-primary-pale: #C4B5FD;
            --clr-secondary: #34D399;
            --clr-gold: #F4C95D;
            --clr-pink: #FB7185;
            --clr-bg-deep: #17121F;
            --clr-bg-mid: #241B33;
            --clr-bg-panel: rgba(28,22,43,0.86);
            --clr-border: #3A2F50;
            --clr-bg-light: #F2EDFA;
            --clr-text-primary: #F5F1FF;
            --clr-text-secondary: #C9BFD9;
            --clr-text-muted: #8F86A6;
            --clr-border-glow: rgba(139,92,246,0.5);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-card: 0 12px 30px rgba(0,0,0,0.35);
            --shadow-glow: 0 0 18px rgba(139,92,246,0.5);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --transition-base: all 0.25s ease;
            --transition-slow: all 0.4s cubic-bezier(0.4,0,0.2,1);
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.9;
            color: var(--clr-text-primary);
            background: radial-gradient(ellipse at 20% 10%, #241B33 0%, #17121F 55%, #120E1C 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition-base); }
        a:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 2px; border-radius: 4px; }
        button { font-family: inherit; cursor: pointer; }
        button:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 2px; }
        input, select, textarea { font-family: inherit; }
        input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(52,211,153,0.7); outline-offset: 0; }
        .container { max-width: 1200px; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
        @media (min-width: 640px) { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }
        @media (min-width: 1024px) { .container { padding-left: 2rem; padding-right: 2rem; } }
        .section { padding: 4rem 0; }
        @media (min-width: 1024px) { .section { padding: 6rem 0; } }
        .section-title { font-size: clamp(1.5rem,3vw,2.25rem); font-weight: 800; color: var(--clr-text-primary); margin-bottom: 0.75em; letter-spacing: 0.02em; }
        .section-desc { font-size: 16px; color: var(--clr-text-secondary); max-width: 720px; margin-bottom: 2.5rem; }
        .tag { display: inline-block; padding: 0.2rem 0.8rem; border-radius: 999px; font-size: 13px; font-weight: 500; border: 1px solid; transition: var(--transition-base); }
        .tag-purple { background: rgba(139,92,246,0.15); border-color: var(--clr-primary); color: var(--clr-primary-pale); }
        .tag-gold { background: rgba(244,201,93,0.12); border-color: var(--clr-gold); color: var(--clr-gold); }
        .tag-green { background: rgba(52,211,153,0.12); border-color: var(--clr-secondary); color: var(--clr-secondary); }
        .tag-pink { background: rgba(251,113,133,0.12); border-color: var(--clr-pink); color: var(--clr-pink); }
        .btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.8rem; border-radius: 999px; font-weight: 700; font-size: 15px; transition: var(--transition-base); border: none; line-height: 1.4; }
        .btn-primary { background: linear-gradient(135deg,#8B5CF6,#C4B5FD); color: #17121F; box-shadow: 0 4px 14px rgba(139,92,246,0.35); }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 24px rgba(139,92,246,0.55); background: linear-gradient(135deg,#9B6CF7,#D0C5FE); }
        .btn-secondary { background: transparent; color: var(--clr-primary-light); border: 1px solid var(--clr-primary); }
        .btn-secondary:hover { background: rgba(139,92,246,0.12); border-color: var(--clr-primary-light); transform: translateY(-2px); }
        .btn-dark { background: rgba(23,18,31,0.7); color: #F5F1FF; border: 1px solid var(--clr-border); }
        .btn-dark:hover { background: rgba(139,92,246,0.2); border-color: var(--clr-primary); transform: translateY(-2px); }
        .card { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); transition: var(--transition-base); overflow: hidden; position: relative; }
        .card:hover { border-color: rgba(139,92,246,0.7); box-shadow: 0 14px 36px rgba(0,0,0,0.45), 0 0 20px rgba(139,92,246,0.2); transform: translateY(-3px); }
        .card-img { width: 100%; height: 180px; object-fit: cover; }
        .card-body { padding: 1.25rem; }
        .card-title { font-size: 18px; font-weight: 700; margin-bottom: 0.6em; color: var(--clr-text-primary); line-height: 1.5; }
        .card-text { font-size: 14px; color: var(--clr-text-secondary); line-height: 1.7; }
        .badge-diamond { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; transform: rotate(45deg); border-radius: 4px; background: linear-gradient(135deg,var(--clr-primary),var(--clr-primary-pale)); color: #17121F; font-size: 14px; font-weight: 800; flex-shrink: 0; }
        .badge-diamond span { transform: rotate(-45deg); }

        /* sticky navbar */
        .sticky-nav { position: sticky; top: 0; z-index: 50; background: rgba(23,18,31,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--clr-border); }
        .navbar { width: 100%; }
        .nav-link { position: relative; font-size: 15px; font-weight: 500; color: var(--clr-text-secondary); padding: 0.5rem 0.25rem; transition: var(--transition-base); }
        .nav-link:hover { color: #fff; }
        .nav-link::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--clr-primary); transition: var(--transition-base); border-radius: 2px; }
        .nav-link:hover::after { width: 100%; }
        .nav-link.active { color: var(--clr-primary-light); }
        .nav-link.active::after { width: 100%; background: var(--clr-primary-light); }
        .desktop-nav-links .nav-link { margin-right: 0.5rem; }
        .mobile-menu-panel { display: none; background: rgba(23,18,31,0.97); border-top: 1px solid var(--clr-border); padding: 1rem 1.5rem 1.5rem; flex-direction: column; gap: 0.8rem; }
        .mobile-menu-panel.open { display: flex; }
        .mobile-menu-panel a { color: var(--clr-text-secondary); font-size: 15px; padding: 0.5rem 0; transition: var(--transition-base); }
        .mobile-menu-panel a:hover { color: #fff; padding-left: 0.5rem; }

        /* article header */
        .article-hero { position: relative; padding: 3.5rem 0 2.5rem; background: linear-gradient(135deg, rgba(23,18,31,0.95) 0%, rgba(36,27,51,0.9) 100%); border-bottom: 1px solid var(--clr-border); overflow: hidden; }
        .article-hero::before { content: ''; position: absolute; top: -120px; right: -80px; width: 320px; height: 320px; background: radial-gradient(circle, rgba(139,92,246,0.25) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        .article-hero::after { content: ''; position: absolute; bottom: -100px; left: -60px; width: 260px; height: 260px; background: radial-gradient(circle, rgba(52,211,153,0.12) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        .breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; font-size: 14px; color: var(--clr-text-muted); margin-bottom: 1rem; position: relative; z-index: 2; }
        .breadcrumb a { color: var(--clr-text-secondary); transition: var(--transition-base); }
        .breadcrumb a:hover { color: var(--clr-primary-light); }
        .breadcrumb .sep { color: var(--clr-text-muted); font-size: 12px; }
        .article-hero h1 { font-size: clamp(1.5rem,3.5vw,2.75rem); font-weight: 800; line-height: 1.35; color: var(--clr-text-primary); margin-bottom: 1rem; letter-spacing: 0.02em; position: relative; z-index: 2; }
        .article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; font-size: 14px; color: var(--clr-text-muted); position: relative; z-index: 2; }
        .article-meta .meta-item { display: inline-flex; align-items: center; gap: 0.4rem; }
        .article-meta .meta-item i { color: var(--clr-primary-light); font-size: 13px; }

        /* article content area */
        .article-layout { display: grid; grid-template-columns: 1fr; gap: 2rem; }
        @media (min-width: 1024px) {
            .article-layout { grid-template-columns: minmax(0, 1fr) 320px; gap: 2.5rem; }
        }
        .article-main { min-width: 0; }
        .article-panel { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-xl); box-shadow: var(--shadow-card); padding: 1.5rem; }
        @media (min-width: 640px) { .article-panel { padding: 2rem; } }
        .article-content { font-size: 16px; line-height: 1.95; color: var(--clr-text-secondary); }
        .article-content h2 { font-size: 1.5rem; font-weight: 800; color: var(--clr-text-primary); margin-top: 2rem; margin-bottom: 1rem; line-height: 1.4; padding-left: 0.75rem; border-left: 4px solid var(--clr-primary); }
        .article-content h3 { font-size: 1.2rem; font-weight: 700; color: var(--clr-text-primary); margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.45; }
        .article-content h4 { font-size: 1.05rem; font-weight: 700; color: var(--clr-primary-pale); margin-top: 1.2rem; margin-bottom: 0.6rem; }
        .article-content p { margin-bottom: 1em; }
        .article-content ul, .article-content ol { margin-bottom: 1em; padding-left: 1.5rem; }
        .article-content ul { list-style-type: disc; }
        .article-content ol { list-style-type: decimal; }
        .article-content li { margin-bottom: 0.5em; }
        .article-content blockquote { margin: 1.5rem 0; padding: 1rem 1.5rem; background: rgba(139,92,246,0.08); border-left: 4px solid var(--clr-primary); border-radius: var(--radius-sm); color: var(--clr-text-secondary); font-style: italic; }
        .article-content img { border-radius: var(--radius-md); margin: 1.5rem auto; box-shadow: var(--shadow-card); }
        .article-content a { color: var(--clr-primary-light); border-bottom: 1px dashed var(--clr-primary-light); transition: var(--transition-base); }
        .article-content a:hover { color: #fff; border-bottom-color: #fff; }
        .article-content code, .article-content pre { background: rgba(23,18,31,0.8); border: 1px solid var(--clr-border); border-radius: var(--radius-sm); padding: 0.2rem 0.4rem; font-size: 14px; color: var(--clr-primary-pale); }
        .article-content pre { padding: 1rem 1.25rem; overflow-x: auto; margin: 1.5rem 0; }
        .article-content pre code { background: none; border: none; padding: 0; }

        /* article sidebar */
        .article-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }
        .sidebar-widget { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); padding: 1.25rem; box-shadow: var(--shadow-card); }
        .sidebar-widget .widget-title { font-size: 16px; font-weight: 700; color: var(--clr-text-primary); margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
        .sidebar-widget .widget-title::before { content: ''; display: inline-block; width: 8px; height: 8px; background: var(--clr-primary); transform: rotate(45deg); border-radius: 1px; flex-shrink: 0; }
        .sidebar-link-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-link-list li { margin-bottom: 0.6rem; }
        .sidebar-link-list a { font-size: 14px; color: var(--clr-text-secondary); display: flex; align-items: center; gap: 0.4rem; transition: var(--transition-base); }
        .sidebar-link-list a:hover { color: var(--clr-primary-light); padding-left: 0.25rem; }
        .sidebar-link-list a i { font-size: 11px; color: var(--clr-primary-light); }

        /* related card */
        .related-card { display: flex; flex-direction: column; background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition-base); box-shadow: 0 4px 14px rgba(0,0,0,0.2); }
        .related-card:hover { border-color: rgba(139,92,246,0.7); box-shadow: 0 8px 24px rgba(0,0,0,0.35), 0 0 14px rgba(139,92,246,0.15); transform: translateY(-3px); }
        .related-card .related-img { width: 100%; height: 150px; object-fit: cover; }
        .related-card .related-body { padding: 1rem; }
        .related-card .related-title { font-size: 14px; font-weight: 700; color: var(--clr-text-primary); line-height: 1.5; margin-bottom: 0.4rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .related-meta { font-size: 12px; color: var(--clr-text-muted); }

        /* author card */
        .author-card { display: flex; flex-direction: column; gap: 1rem; background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); padding: 1.5rem; }
        @media (min-width: 640px) { .author-card { flex-direction: row; align-items: flex-start; } }
        .author-avatar { width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary)); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
        .author-avatar span { font-size: 22px; font-weight: 800; color: #fff; }
        .author-info { flex: 1; }

        /* prev-next nav */
        .prev-next { display: grid; grid-template-columns: 1fr; gap: 1rem; }
        @media (min-width: 640px) { .prev-next { grid-template-columns: 1fr 1fr; } }
        .pn-link { background: var(--clr-bg-panel); border: 1px solid var(--clr-border); border-radius: var(--radius-md); padding: 1rem 1.25rem; transition: var(--transition-base); display: flex; align-items: center; gap: 0.75rem; }
        .pn-link:hover { border-color: rgba(139,92,246,0.6); background: rgba(139,92,246,0.08); }
        .pn-link .pn-arrow { width: 32px; height: 32px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: rgba(139,92,246,0.15); border-radius: 50%; color: var(--clr-primary-light); font-size: 13px; }
        .pn-link .pn-text { font-size: 13px; color: var(--clr-text-muted); }
        .pn-link .pn-title { font-size: 14px; font-weight: 600; color: var(--clr-text-primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .pn-link.next { text-align: right; justify-content: flex-end; }

        /* CTA */
        .article-cta { background: linear-gradient(135deg, rgba(139,92,246,0.2) 0%, rgba(196,181,253,0.08) 50%, rgba(52,211,153,0.08) 100%); border: 1px solid rgba(139,92,246,0.45); border-radius: var(--radius-xl); padding: 2rem 1.5rem; text-align: center; box-shadow: 0 0 30px rgba(139,92,246,0.15); }
        .article-cta h2 { font-size: 1.4rem; font-weight: 800; color: var(--clr-text-primary); margin-bottom: 0.5rem; }
        .article-cta p { font-size: 15px; color: var(--clr-text-secondary); margin-bottom: 1.25rem; max-width: 560px; margin-left: auto; margin-right: auto; }

        /* footer */
        .footer { background: linear-gradient(180deg, #17121F 0%, #120E1C 100%); border-top: 1px solid var(--clr-border); }
        .footer-heading { font-size: 14px; font-weight: 700; color: var(--clr-text-primary); margin-bottom: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }
        .footer-col { display: flex; flex-direction: column; gap: 0.5rem; }
        .footer-col a { font-size: 14px; color: var(--clr-text-muted); transition: var(--transition-base); }
        .footer-col a:hover { color: var(--clr-primary-light); padding-left: 0.25rem; }

        /* utility */
        .text-muted { color: var(--clr-text-muted); }
        .text-secondary { color: var(--clr-text-secondary); }
        .text-gold { color: var(--clr-gold); }
        .mt-0 { margin-top: 0; }
        .mb-2 { margin-bottom: 0.5rem; }
        .mb-3 { margin-bottom: 0.75rem; }
        .mb-4 { margin-bottom: 1rem; }
        .mb-6 { margin-bottom: 1.5rem; }
        .mb-8 { margin-bottom: 2rem; }
        .flex { display: flex; }
        .items-center { align-items: center; }
        .justify-between { justify-content: space-between; }
        .gap-2 { gap: 0.5rem; }
        .gap-3 { gap: 0.75rem; }
        .gap-4 { gap: 1rem; }
        .gap-6 { gap: 1.5rem; }
        .gap-8 { gap: 2rem; }
        .grid { display: grid; }
        .grid-cols-1 { grid-template-columns: 1fr; }
        .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
        .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
        .text-center { text-align: center; }
        .w-full { width: 100%; }
        .relative { position: relative; }
        .z-10 { z-index: 10; }
        .truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

        @media (max-width: 767px) {
            .desktop-nav-links { display: none !important; }
            .mobile-menu-panel.open { display: flex !important; }
            .article-layout { gap: 1.25rem; }
            .article-panel { padding: 1.25rem; }
            .article-content h2 { font-size: 1.3rem; }
        }
        @media (min-width: 768px) {
            .mobile-menu-panel { display: none !important; }
        }
        @media (max-width: 639px) {
            .article-meta { gap: 0.75rem; font-size: 13px; }
            .article-cta { padding: 1.5rem 1rem; }
            .article-cta h2 { font-size: 1.2rem; }
        }