/* roulang page: index */
:root {
  --bg-primary: #07070D;
  --bg-secondary: #0E0E1E;
  --bg-card: rgba(15, 15, 30, 0.65);
  --accent-cyan: #06B6D4;
  --accent-lime: #A3E635;
  --accent-pink: #F43F5E;
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border-glow: rgba(163, 230, 53, 0.25);
  --border-card: rgba(6, 182, 212, 0.15);
  --shadow-neon-lime: 0 0 18px rgba(163, 230, 53, 0.45);
  --shadow-neon-cyan: 0 0 22px rgba(6, 182, 212, 0.55);
  --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(6, 182, 212, 0.3);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, .btn { cursor: pointer; font-family: inherit; }

.container {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* HEADER / NAV */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 7, 13, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(6, 182, 212, 0.12);
  transition: var(--transition-smooth);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
}
.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--accent-lime);
  border-radius: 2px;
  box-shadow: 0 0 10px var(--accent-lime);
}
.auth-buttons {
  display: flex;
  align-items: center;
  gap: 14px;
}
.btn-login {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: var(--text-secondary);
  padding: 9px 22px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}
.btn-login:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  background: rgba(6, 182, 212, 0.08);
}
.btn-signup {
  background: linear-gradient(135deg, var(--accent-lime), #4ADE80);
  color: #07070D;
  font-weight: 700;
  padding: 10px 26px;
  border: none;
  border-radius: 30px;
  font-size: 0.9rem;
  box-shadow: var(--shadow-neon-lime);
  transition: var(--transition-smooth);
}
.btn-signup:hover {
  box-shadow: 0 0 28px rgba(163, 230, 53, 0.75);
  transform: translateY(-1px);
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.8rem;
}
@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
}

/* HERO */
.hero {
  padding: 140px 0 80px;
  position: relative;
  background: radial-gradient(circle at 20% 20%, #0c1a2b, var(--bg-primary) 70%);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 50px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-content h1 {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
  max-width: 540px;
}
.hero-kpis {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}
.kpi-val {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--accent-lime);
  display: block;
}
.kpi-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.hero-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #0891B2);
  color: white;
  font-weight: 700;
  padding: 15px 38px;
  border-radius: 40px;
  border: none;
  font-size: 1.05rem;
  box-shadow: var(--shadow-neon-cyan);
  transition: var(--transition-smooth);
}
.btn-primary:hover {
  box-shadow: 0 0 35px rgba(6, 182, 212, 0.85);
  transform: translateY(-2px);
}
.btn-outline-glow {
  background: transparent;
  border: 1.5px solid var(--accent-lime);
  color: var(--accent-lime);
  font-weight: 600;
  padding: 15px 34px;
  border-radius: 40px;
  transition: var(--transition-smooth);
}
.btn-outline-glow:hover {
  background: rgba(163, 230, 53, 0.1);
  box-shadow: 0 0 20px rgba(163, 230, 53, 0.35);
}
.hero-image img {
  border-radius: 24px;
  box-shadow: 0 25px 60px rgba(6, 182, 212, 0.2);
  border: 1px solid rgba(255,255,255,0.08);
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 2.5rem; }
  .hero-image { display: none; }
}

/* Section Titles */
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-sub {
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 680px;
  font-size: 1rem;
  line-height: 1.7;
}

/* PRODUCT VALUE CARDS (Bento style) */
.product-value {
  padding: 90px 0;
  background: var(--bg-secondary);
}
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.bento-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition-smooth);
}
.bento-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--accent-cyan);
}
.bento-icon {
  font-size: 2.2rem;
  margin-bottom: 19px;
  display: block;
}
.bento-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.bento-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}
@media (max-width: 768px) {
  .bento-grid { grid-template-columns: 1fr; }
}

/* FEATURE SHOWCASE */
.features-showcase {
  padding: 100px 0;
  background: var(--bg-primary);
}
.feature-row {
  display: flex;
  align-items: center;
  gap: 70px;
  margin-bottom: 80px;
}
.feature-row.reverse {
  flex-direction: row-reverse;
}
.feature-img img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 45px rgba(0,0,0,0.55);
}
.feature-text h2 {
  font-size: 1.9rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.feature-text p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}
@media (max-width: 768px) {
  .feature-row, .feature-row.reverse { flex-direction: column; gap: 30px; }
}

/* STEPS */
.steps {
  padding: 90px 0;
  background: var(--bg-secondary);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 35px;
  margin-top: 45px;
}
.step-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition-smooth);
}
.step-card:hover {
  border-color: var(--accent-lime);
}
.step-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent-lime);
  margin-bottom: 10px;
}
@media (max-width: 768px) {
  .steps-grid { grid-template-columns: 1fr; }
}

/* PLATFORM ENTRY */
.platform-entry {
  padding: 90px 0;
  background: var(--bg-primary);
}
.platform-grid {
  display: flex;
  gap: 30px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}
.platform-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  text-align: center;
  flex: 1 1 180px;
  border: 1px solid rgba(255,255,255,0.06);
}
.platform-card:hover {
  border-color: var(--accent-cyan);
}

/* TESTIMONIALS */
.testimonials {
  padding: 100px 0;
  background: var(--bg-secondary);
}
.testimonial-cards {
  display: flex;
  gap: 30px;
  overflow-x: auto;
  padding-bottom: 15px;
}
.review-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  min-width: 290px;
  border: 1px solid rgba(255,255,255,0.05);
}
.review-footer {
  margin-top: 18px;
  font-weight: 600;
  color: var(--accent-lime);
}

/* CMS NEWS */
.news-section {
  padding: 90px 0;
  background: var(--bg-primary);
}
.news-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  margin-top: 35px;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.news-item {
  display: flex;
  gap: 22px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding-bottom: 22px;
}
.news-item img {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border-radius: 12px;
}
.news-content h4 {
  font-weight: 600;
  margin-bottom: 6px;
}
.news-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.sidebar-widget {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
}
@media (max-width: 768px) {
  .news-grid { grid-template-columns: 1fr; }
}

/* FOOTER */
.site-footer {
  background: #05050A;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 55px 0 35px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 35px;
}
.footer-links h4 {
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-links a {
  display: block;
  color: var(--text-muted);
  margin-bottom: 9px;
  font-size: 0.9rem;
}
.copyright {
  margin-top: 40px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* FAB */
.fab {
  position: fixed;
  left: 18px;
  bottom: 90px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: rgba(7,7,13,0.8);
  backdrop-filter: blur(12px);
  border-radius: 50%;
  border: 2px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-neon-cyan);
  transition: var(--transition-smooth);
  font-size: 1.7rem;
}
.fab:hover {
  box-shadow: 0 0 30px var(--accent-cyan);
}

/* roulang page: article */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: rgba(15, 15, 30, 0.65);
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-glow: rgba(163, 230, 53, 0.25);
            --border-card: rgba(6, 182, 212, 0.15);
            --shadow-neon-lime: 0 0 18px rgba(163, 230, 53, 0.45);
            --shadow-neon-cyan: 0 0 22px rgba(6, 182, 212, 0.55);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(6, 182, 212, 0.3);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; height: auto; display: block; }
        button, .btn { cursor: pointer; font-family: inherit; }
        .container { max-width: 1280px; margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }

        /* HEADER */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            background: rgba(7, 7, 13, 0.85); backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(6, 182, 212, 0.12);
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo {
            font-weight: 800; font-size: 1.35rem; letter-spacing: -0.01em;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .nav-links { display: flex; align-items: center; gap: 34px; list-style: none; }
        .nav-links a { font-weight: 500; font-size: 0.95rem; color: var(--text-secondary); transition: color 0.2s; position: relative; }
        .nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
        .nav-links a.active::after {
            content: ''; position: absolute; bottom: -6px; left: 0; width: 100%; height: 2.5px;
            background: var(--accent-lime); border-radius: 2px; box-shadow: 0 0 10px var(--accent-lime);
        }
        .auth-buttons { display: flex; align-items: center; gap: 14px; }
        .btn-login {
            background: transparent; border: 1px solid rgba(148, 163, 184, 0.5); color: var(--text-secondary);
            padding: 9px 22px; border-radius: 30px; font-weight: 600; font-size: 0.9rem; transition: var(--transition-smooth);
        }
        .btn-login:hover { border-color: var(--accent-cyan); color: var(--text-primary); background: rgba(6, 182, 212, 0.08); }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lime), #4ADE80); color: #07070D; font-weight: 700;
            padding: 10px 26px; border: none; border-radius: 30px; font-size: 0.9rem;
            box-shadow: var(--shadow-neon-lime); transition: var(--transition-smooth);
        }
        .btn-signup:hover { box-shadow: 0 0 28px rgba(163, 230, 53, 0.75); transform: translateY(-1px); }
        .mobile-menu-btn { display: none; background: none; border: none; color: white; font-size: 1.8rem; }

        /* ARTICLE BANNER */
        .article-banner {
            padding: 140px 0 50px;
            background: radial-gradient(circle at 20% 20%, #0c1a2b, var(--bg-primary) 70%);
        }
        .article-banner .breadcrumb {
            display: flex; gap: 10px; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-banner .breadcrumb a { color: var(--accent-cyan); }
        .article-banner .breadcrumb a:hover { text-decoration: underline; }
        .article-banner .breadcrumb span { color: var(--text-secondary); }
        .article-header h1 {
            font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px;
            background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .article-meta {
            display: flex; gap: 24px; color: var(--text-muted); font-size: 0.95rem;
            border-bottom: 1px solid var(--border-card); padding-bottom: 24px; margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .article-meta span { display: flex; align-items: center; gap: 6px; }

        /* ARTICLE LAYOUT */
        .article-wrapper {
            display: grid; grid-template-columns: 1fr 340px; gap: 48px; padding: 0 0 80px;
        }
        .article-content {
            background: var(--bg-card); backdrop-filter: blur(12px);
            border: 1px solid var(--border-card); border-radius: var(--radius-lg); padding: 40px;
        }
        .article-content h2 { font-size: 1.8rem; margin: 32px 0 16px; font-weight: 700; }
        .article-content h3 { font-size: 1.4rem; margin: 24px 0 12px; font-weight: 600; }
        .article-content p { color: var(--text-secondary); line-height: 1.75; margin-bottom: 18px; font-size: 1rem; }
        .article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 20px; color: var(--text-secondary); line-height: 1.7; }
        .article-content li { margin-bottom: 10px; }
        .article-content strong { color: var(--accent-lime); }
        .article-content a { color: var(--accent-cyan); text-decoration: underline; }
        .article-content blockquote {
            border-left: 4px solid var(--accent-cyan); padding: 18px 24px; margin: 28px 0;
            background: rgba(6, 182, 212, 0.05); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic; color: var(--text-primary);
        }
        .article-content img { border-radius: var(--radius-md); margin: 24px 0; }

        /* SIDEBAR */
        .article-sidebar .sidebar-card {
            background: var(--bg-card); backdrop-filter: blur(12px);
            border: 1px solid var(--border-card); border-radius: var(--radius-lg); padding: 28px 24px;
            margin-bottom: 28px;
        }
        .sidebar-card h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 20px; color: var(--accent-lime); }
        .related-post { display: flex; gap: 14px; padding-bottom: 18px; margin-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,0.05); align-items: flex-start; }
        .related-post:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
        .related-post img { width: 70px; height: 70px; border-radius: var(--radius-sm); object-fit: cover; }
        .related-post-info h5 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; line-height: 1.4; }
        .related-post-info h5 a:hover { color: var(--accent-cyan); }
        .related-post-info span { font-size: 0.8rem; color: var(--text-muted); }
        .game-tags { display: flex; flex-wrap: wrap; gap: 10px; }
        .game-tag {
            background: rgba(6, 182, 212, 0.1); border: 1px solid var(--border-card);
            padding: 8px 16px; border-radius: 24px; font-size: 0.85rem; color: var(--accent-cyan);
            transition: var(--transition-smooth);
        }
        .game-tag:hover { background: rgba(6, 182, 212, 0.2); border-color: var(--accent-cyan); }

        /* AUTHOR BOX */
        .author-box {
            display: flex; gap: 20px; background: rgba(163, 230, 53, 0.05);
            border: 1px solid var(--border-glow); border-radius: var(--radius-lg); padding: 24px;
            margin-top: 40px; align-items: center;
        }
        .author-avatar {
            width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.5rem;
            color: #07070D;
        }
        .author-info h4 { font-weight: 700; margin-bottom: 4px; }
        .author-info p { color: var(--text-secondary); font-size: 0.9rem; margin: 0; }

        /* EMPTY STATE */
        .article-empty {
            text-align: center; padding: 80px 24px;
            background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius-lg);
        }
        .article-empty h2 { font-size: 2rem; margin-bottom: 16px; }
        .article-empty p { color: var(--text-secondary); margin-bottom: 32px; }
        .article-empty .btn-primary { display: inline-block; }

        /* FOOTER */
        .site-footer {
            background: var(--bg-secondary); padding: 60px 0 30px;
            border-top: 1px solid rgba(6, 182, 212, 0.12);
        }
        .footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; margin-bottom: 40px; }
        .footer-links h4 { font-weight: 700; font-size: 1rem; margin-bottom: 18px; color: var(--text-primary); }
        .footer-links a { display: block; color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 10px; transition: color 0.2s; }
        .footer-links a:hover { color: var(--accent-cyan); }
        .copyright { text-align: center; color: var(--text-muted); font-size: 0.85rem; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.05); }

        /* FAB */
        .fab {
            position: fixed; left: 24px; bottom: 96px; z-index: 999;
            width: 56px; height: 56px; border-radius: 28px;
            background: rgba(7, 7, 13, 0.8); backdrop-filter: blur(12px);
            border: 2px solid transparent; background-clip: padding-box;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; color: var(--accent-lime);
            box-shadow: var(--shadow-neon-lime); transition: var(--transition-smooth);
            position: relative;
        }
        .fab::before {
            content: ''; position: absolute; inset: -3px; border-radius: 31px; padding: 3px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime), var(--accent-pink));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor; mask-composite: exclude;
            z-index: -1;
        }
        .fab:hover { transform: scale(1.1); box-shadow: 0 0 30px rgba(163, 230, 53, 0.65); }
        .fab .badge {
            position: absolute; top: -4px; right: -4px; width: 14px; height: 14px;
            background: var(--accent-pink); border-radius: 50%; border: 2px solid #07070D;
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .article-wrapper { grid-template-columns: 1fr; }
            .article-content { padding: 28px; }
            .article-header h1 { font-size: 2.2rem; }
            .nav-links { display: none; }
            .mobile-menu-btn { display: block; }
            .auth-buttons .btn-login, .auth-buttons .btn-signup { padding: 8px 16px; font-size: 0.8rem; }
        }
        @media (max-width: 768px) {
            .article-banner { padding: 120px 0 40px; }
            .article-header h1 { font-size: 1.8rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .author-box { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-content { padding: 20px; }
            .article-header h1 { font-size: 1.5rem; }
            .container { padding-left: 16px; padding-right: 16px; }
            .footer-grid { grid-template-columns: 1fr; }
        }

/* roulang page: category1 */
:root {
      --bg-primary: #07070D;
      --bg-secondary: #0E0E1E;
      --bg-card: rgba(15, 15, 30, 0.65);
      --accent-cyan: #06B6D4;
      --accent-lime: #A3E635;
      --accent-pink: #F43F5E;
      --text-primary: #FFFFFF;
      --text-secondary: #94A3B8;
      --text-muted: #64748B;
      --border-glow: rgba(163, 230, 53, 0.25);
      --border-card: rgba(6, 182, 212, 0.15);
      --shadow-neon-lime: 0 0 18px rgba(163, 230, 53, 0.45);
      --shadow-neon-cyan: 0 0 22px rgba(6, 182, 212, 0.55);
      --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(6, 182, 212, 0.3);
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    button, .btn { cursor: pointer; font-family: inherit; }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* HEADER */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(7, 7, 13, 0.85);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(6, 182, 212, 0.12);
      transition: var(--transition-smooth);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      font-weight: 800;
      font-size: 1.35rem;
      letter-spacing: -0.01em;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 34px;
      list-style: none;
    }
    .nav-links a {
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-secondary);
      transition: color 0.2s;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2.5px;
      background: var(--accent-lime);
      border-radius: 2px;
      box-shadow: 0 0 10px var(--accent-lime);
    }
    .auth-buttons {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-login {
      background: transparent;
      border: 1px solid rgba(148, 163, 184, 0.5);
      color: var(--text-secondary);
      padding: 9px 22px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 0.9rem;
      transition: var(--transition-smooth);
    }
    .btn-login:hover {
      border-color: var(--accent-cyan);
      color: var(--text-primary);
      background: rgba(6, 182, 212, 0.08);
    }
    .btn-signup {
      background: linear-gradient(135deg, var(--accent-lime), #4ADE80);
      color: #07070D;
      font-weight: 700;
      padding: 10px 26px;
      border: none;
      border-radius: 30px;
      font-size: 0.9rem;
      box-shadow: var(--shadow-neon-lime);
      transition: var(--transition-smooth);
    }
    .btn-signup:hover {
      box-shadow: 0 0 28px rgba(163, 230, 53, 0.75);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: white;
      font-size: 1.8rem;
    }
    /* HERO */
    .category-hero {
      padding: 140px 0 80px;
      position: relative;
      background: radial-gradient(circle at 30% 30%, #0c1a2b, var(--bg-primary) 70%);
      overflow: hidden;
    }
    .category-hero-grid {
      display: grid;
      grid-template-columns: 6fr 6fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .category-hero-content h1 {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 24px;
      background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .category-hero-desc {
      font-size: 1.1rem;
      color: var(--text-secondary);
      margin-bottom: 36px;
      line-height: 1.7;
      max-width: 540px;
    }
    .category-hero-stats {
      display: flex;
      gap: 40px;
      margin-bottom: 36px;
    }
    .stat-item .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent-lime);
    }
    .stat-item .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .category-hero-actions {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--accent-cyan), #0891B2);
      color: white;
      font-weight: 700;
      padding: 15px 38px;
      border-radius: 40px;
      border: none;
      font-size: 1.05rem;
      box-shadow: var(--shadow-neon-cyan);
      transition: var(--transition-smooth);
    }
    .btn-primary:hover {
      box-shadow: 0 0 35px rgba(6, 182, 212, 0.85);
      transform: translateY(-2px);
    }
    .btn-outline-glow {
      background: transparent;
      border: 1.5px solid var(--accent-lime);
      color: var(--accent-lime);
      font-weight: 600;
      padding: 15px 34px;
      border-radius: 40px;
      transition: var(--transition-smooth);
    }
    .btn-outline-glow:hover {
      background: rgba(163, 230, 53, 0.1);
      box-shadow: 0 0 20px rgba(163, 230, 53, 0.35);
    }
    .category-hero-image img {
      border-radius: 24px;
      box-shadow: 0 25px 60px rgba(6, 182, 212, 0.2);
      border: 1px solid rgba(255,255,255,0.08);
      width: 100%;
    }
    /* Section Titles */
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .section-sub {
      color: var(--text-secondary);
      margin-bottom: 48px;
      max-width: 680px;
      font-size: 1rem;
      line-height: 1.7;
    }
    /* RULES INTRO */
    .rules-intro {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .rules-intro-flex {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .rules-intro-text h2 {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .rules-intro-text p {
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 16px;
      font-size: 1rem;
    }
    .rules-intro-image img {
      border-radius: var(--radius-lg);
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
      border: 1px solid rgba(255,255,255,0.06);
    }
    /* RULES CARDS */
    .rules-grid-section {
      padding: 90px 0;
    }
    .rules-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 48px;
    }
    .rule-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      transition: var(--transition-smooth);
      position: relative;
      overflow: hidden;
    }
    .rule-card:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--accent-cyan);
      transform: translateY(-4px);
    }
    .rule-icon {
      font-size: 2.4rem;
      margin-bottom: 20px;
      color: var(--accent-cyan);
    }
    .rule-card h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .rule-card p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.65;
    }
    /* SPECIAL CASES */
    .special-cases {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .cases-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      margin-top: 40px;
    }
    .case-item {
      background: rgba(15, 15, 30, 0.4);
      border: 1px solid rgba(255,255,255,0.05);
      border-radius: var(--radius-md);
      padding: 30px 26px;
      display: flex;
      gap: 20px;
      align-items: flex-start;
      transition: var(--transition-smooth);
    }
    .case-item:hover {
      border-color: var(--accent-lime);
      background: rgba(163, 230, 53, 0.03);
    }
    .case-badge {
      background: linear-gradient(135deg, var(--accent-pink), #E11D48);
      color: white;
      font-weight: 700;
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.85rem;
      white-space: nowrap;
    }
    .case-content h4 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-primary);
    }
    .case-content p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    /* PRACTICE SECTION */
    .practice-section {
      padding: 90px 0;
    }
    .practice-banner {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 60px 50px;
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 40px;
      align-items: center;
      position: relative;
      overflow: hidden;
    }
    .practice-banner h2 {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.25;
    }
    .practice-banner p {
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 24px;
      font-size: 1rem;
      max-width: 500px;
    }
    .btn-glow-lime {
      background: var(--accent-lime);
      color: #07070D;
      font-weight: 700;
      padding: 15px 36px;
      border-radius: 40px;
      border: none;
      font-size: 1rem;
      box-shadow: var(--shadow-neon-lime);
      transition: var(--transition-smooth);
    }
    .btn-glow-lime:hover {
      box-shadow: 0 0 32px rgba(163, 230, 53, 0.8);
      transform: translateY(-2px);
    }
    .practice-image img {
      border-radius: var(--radius-md);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    /* TIPS */
    .tips-section {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .tips-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
      margin-top: 40px;
    }
    .tip-card {
      background: rgba(15, 15, 30, 0.5);
      border: 1px solid rgba(255,255,255,0.04);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition-smooth);
    }
    .tip-card:hover {
      border-color: var(--accent-cyan);
    }
    .tip-card .tip-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--accent-cyan);
      opacity: 0.7;
      margin-bottom: 8px;
    }
    .tip-card h4 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .tip-card p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    /* FAQ */
    .faq-section {
      padding: 90px 0;
    }
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 40px;
    }
    .faq-item {
      background: rgba(15, 15, 30, 0.5);
      border: 1px solid rgba(255,255,255,0.05);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition-smooth);
    }
    .faq-item:hover {
      border-color: var(--accent-lime);
      background: rgba(163, 230, 53, 0.03);
    }
    .faq-item h3 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text-primary);
    }
    .faq-item p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    /* CTA */
    .cta-section {
      padding: 80px 0;
      background: linear-gradient(135deg, #14161B 0%, #0B0C0E 100%);
    }
    .cta-box {
      background: rgba(6, 182, 212, 0.06);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 60px 50px;
      text-align: left;
    }
    .cta-box h2 {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .cta-box p {
      color: var(--text-secondary);
      max-width: 600px;
      line-height: 1.7;
      margin-bottom: 28px;
      font-size: 1rem;
    }
    .cta-buttons {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }
    /* FOOTER */
    .site-footer {
      background: #05050A;
      border-top: 1px solid rgba(255,255,255,0.04);
      padding: 60px 0 30px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-links h4 {
      color: var(--text-primary);
      font-weight: 600;
      margin-bottom: 16px;
      font-size: 1rem;
    }
    .footer-links a {
      display: block;
      color: var(--text-muted);
      margin-bottom: 10px;
      transition: color 0.2s;
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
    }
    .copyright {
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 20px;
      text-align: center;
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    /* FAB */
    .fab-floating {
      position: fixed;
      left: 24px;
      bottom: 96px;
      z-index: 50;
      width: 56px;
      height: 56px;
      background: rgba(7, 7, 13, 0.8);
      backdrop-filter: blur(12px);
      border: 2px solid var(--accent-cyan);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: var(--accent-lime);
      box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
      transition: var(--transition-smooth);
      opacity: 0.75;
    }
    .fab-floating:hover {
      opacity: 1;
      transform: scale(1.1);
      box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
    }
    /* RESPONSIVE */
    @media (max-width: 1024px) {
      .nav-links { gap: 20px; }
      .category-hero-grid { grid-template-columns: 1fr; }
      .category-hero-content h1 { font-size: 2.6rem; }
      .category-hero-image { display: none; }
      .rules-intro-flex { grid-template-columns: 1fr; }
      .rules-grid { grid-template-columns: 1fr 1fr; }
      .cases-list { grid-template-columns: 1fr; }
      .practice-banner { grid-template-columns: 1fr; }
      .tips-grid { grid-template-columns: 1fr; }
      .faq-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
      .rules-grid { grid-template-columns: 1fr; }
      .category-hero-content h1 { font-size: 2.2rem; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .header-inner { padding: 0 12px; }
    }
    @media (max-width: 520px) {
      .category-hero { padding: 120px 0 50px; }
      .category-hero-content h1 { font-size: 1.8rem; }
      .category-hero-stats { gap: 20px; }
      .cta-box { padding: 40px 28px; }
      .practice-banner { padding: 40px 28px; }
      .footer-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category2 */
:root {
  --bg-primary: #07070D;
  --bg-secondary: #0E0E1E;
  --bg-card: rgba(15, 15, 30, 0.65);
  --accent-cyan: #06B6D4;
  --accent-lime: #A3E635;
  --accent-pink: #F43F5E;
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border-glow: rgba(163, 230, 53, 0.25);
  --border-card: rgba(6, 182, 212, 0.15);
  --shadow-neon-lime: 0 0 18px rgba(163, 230, 53, 0.45);
  --shadow-neon-cyan: 0 0 22px rgba(6, 182, 212, 0.55);
  --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(6, 182, 212, 0.3);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, .btn { cursor: pointer; font-family: inherit; }
.container {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 7, 13, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(6, 182, 212, 0.12);
  transition: var(--transition-smooth);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--accent-lime);
  border-radius: 2px;
  box-shadow: 0 0 10px var(--accent-lime);
}
.auth-buttons {
  display: flex;
  align-items: center;
  gap: 14px;
}
.btn-login {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: var(--text-secondary);
  padding: 9px 22px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}
.btn-login:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  background: rgba(6, 182, 212, 0.08);
}
.btn-signup {
  background: linear-gradient(135deg, var(--accent-lime), #4ADE80);
  color: #07070D;
  font-weight: 700;
  padding: 10px 26px;
  border: none;
  border-radius: 30px;
  font-size: 0.9rem;
  box-shadow: var(--shadow-neon-lime);
  transition: var(--transition-smooth);
}
.btn-signup:hover {
  box-shadow: 0 0 28px rgba(163, 230, 53, 0.75);
  transform: translateY(-1px);
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.8rem;
}
/* Page Hero */
.page-hero {
  padding: 140px 0 60px;
  background: radial-gradient(ellipse at 30% 50%, #0F172A, var(--bg-primary) 70%);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.02));
  pointer-events: none;
}
.page-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.page-hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero-content .hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}
.page-hero-image {
  position: relative;
}
.page-hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.1);
}
/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #0891B2);
  color: white;
  font-weight: 700;
  padding: 15px 38px;
  border-radius: 40px;
  border: none;
  font-size: 1.05rem;
  box-shadow: var(--shadow-neon-cyan);
  transition: var(--transition-smooth);
  display: inline-block;
}
.btn-primary:hover {
  box-shadow: 0 0 35px rgba(6, 182, 212, 0.85);
  transform: translateY(-2px);
}
/* Section Base */
.section {
  padding: 80px 0;
}
.section-header {
  margin-bottom: 50px;
}
.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-header p {
  color: var(--text-secondary);
  max-width: 680px;
  font-size: 1rem;
  line-height: 1.7;
}
/* Strategy Category Cards */
.strategy-category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.strategy-cat-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition-smooth);
}
.strategy-cat-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-card-hover);
}
.strategy-cat-card .icon-wrap {
  width: 56px;
  height: 56px;
  background: rgba(6, 182, 212, 0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.6rem;
  color: var(--accent-cyan);
}
.strategy-cat-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.strategy-cat-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}
/* Tactics Timeline */
.tactics-timeline {
  background: var(--bg-secondary);
}
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  align-items: flex-start;
}
.timeline-marker {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--bg-primary);
  flex-shrink: 0;
}
.timeline-body h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.timeline-body p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}
/* Strategy Mastery Grid */
.mastery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.mastery-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition-smooth);
}
.mastery-card:hover {
  border-color: var(--accent-lime);
  box-shadow: var(--shadow-card-hover);
}
.mastery-card .card-icon {
  font-size: 2rem;
  color: var(--accent-lime);
  margin-bottom: 18px;
}
.mastery-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.mastery-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}
/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #0B2E1E, #051F14);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.cta-banner::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -5%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(163,230,53,0.1) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-banner h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 600px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn-primary {
  position: relative;
  z-index: 1;
}
/* Community Badge Bar */
.community-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border-card);
  border-bottom: 1px solid var(--border-card);
  backdrop-filter: blur(12px);
}
.community-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  flex-wrap: wrap;
  gap: 16px;
}
.community-stats {
  display: flex;
  gap: 36px;
}
.community-stats .stat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-secondary);
}
.community-stats .stat i {
  color: var(--accent-cyan);
}
/* Latest News List */
.news-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}
.news-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-card-hover);
}
.news-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.news-card-body {
  padding: 20px;
}
.news-card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.news-card-body .news-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}
/* Footer */
.site-footer {
  background: #04040A;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 60px 0 28px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
  margin-bottom: 40px;
}
.footer-links h4 {
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  font-size: 1.05rem;
}
.footer-links a {
  display: block;
  margin-bottom: 10px;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--accent-lime);
}
.copyright {
  text-align: center;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 24px;
}
/* FAB */
.fab-left {
  position: fixed;
  left: 24px;
  bottom: 96px;
  z-index: 50;
  width: 56px;
  height: 56px;
  background: rgba(7, 7, 13, 0.8);
  backdrop-filter: blur(14px);
  border-radius: 16px;
  border: 1.5px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-lime);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
  transition: var(--transition-smooth);
  cursor: pointer;
}
.fab-left:hover {
  box-shadow: 0 0 32px rgba(6, 182, 212, 0.8);
  transform: scale(1.1);
}
@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
  .page-hero-grid { grid-template-columns: 1fr; }
  .page-hero-image { display: none; }
  .strategy-category-grid { grid-template-columns: 1fr; }
  .mastery-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .hero-content h1, .page-hero-content h1 { font-size: 2.2rem; }
  .community-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category3 */
:root {
      --bg-primary: #07070D;
      --bg-secondary: #0E0E1E;
      --bg-card: rgba(15, 15, 30, 0.65);
      --accent-cyan: #06B6D4;
      --accent-lime: #A3E635;
      --accent-pink: #F43F5E;
      --accent-gold: #F59E0B;
      --text-primary: #FFFFFF;
      --text-secondary: #94A3B8;
      --text-muted: #64748B;
      --border-glow: rgba(163, 230, 53, 0.25);
      --border-card: rgba(6, 182, 212, 0.15);
      --shadow-neon-lime: 0 0 18px rgba(163, 230, 53, 0.45);
      --shadow-neon-cyan: 0 0 22px rgba(6, 182, 212, 0.55);
      --shadow-neon-gold: 0 0 25px rgba(245, 158, 11, 0.45);
      --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(6, 182, 212, 0.3);
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --radius-full: 50px;
      --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    button, .btn { cursor: pointer; font-family: inherit; }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* HEADER / NAV */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(7, 7, 13, 0.85);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(6, 182, 212, 0.12);
      transition: var(--transition-smooth);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      font-weight: 800;
      font-size: 1.35rem;
      letter-spacing: -0.01em;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 34px;
      list-style: none;
    }
    .nav-links a {
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-secondary);
      transition: color 0.2s;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2.5px;
      background: var(--accent-lime);
      border-radius: 2px;
      box-shadow: 0 0 10px var(--accent-lime);
    }
    .auth-buttons {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-login {
      background: transparent;
      border: 1px solid rgba(148, 163, 184, 0.5);
      color: var(--text-secondary);
      padding: 9px 22px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 0.9rem;
      transition: var(--transition-smooth);
    }
    .btn-login:hover {
      border-color: var(--accent-cyan);
      color: var(--text-primary);
      background: rgba(6, 182, 212, 0.08);
    }
    .btn-signup {
      background: linear-gradient(135deg, var(--accent-lime), #4ADE80);
      color: #07070D;
      font-weight: 700;
      padding: 10px 26px;
      border: none;
      border-radius: 30px;
      font-size: 0.9rem;
      box-shadow: var(--shadow-neon-lime);
      transition: var(--transition-smooth);
    }
    .btn-signup:hover {
      box-shadow: 0 0 28px rgba(163, 230, 53, 0.75);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: white;
      font-size: 1.8rem;
    }
    /* PAGE HERO */
    .page-hero {
      padding: 150px 0 90px;
      background: radial-gradient(circle at 15% 10%, #1a0533, var(--bg-primary) 70%);
      position: relative;
      overflow: hidden;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 24px;
      background: linear-gradient(135deg, #FFFFFF, var(--accent-gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-secondary);
      margin-bottom: 36px;
      line-height: 1.7;
      max-width: 540px;
    }
    .promo-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(245, 158, 11, 0.15);
      border: 1px solid var(--accent-gold);
      border-radius: var(--radius-full);
      padding: 10px 24px;
      color: var(--accent-gold);
      font-weight: 600;
      font-size: 0.95rem;
      margin-bottom: 24px;
    }
    .promo-badge i { font-size: 1.1rem; }
    .hero-actions {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--accent-cyan), #0891B2);
      color: white;
      font-weight: 700;
      padding: 15px 38px;
      border-radius: 40px;
      border: none;
      font-size: 1.05rem;
      box-shadow: var(--shadow-neon-cyan);
      transition: var(--transition-smooth);
    }
    .btn-primary:hover {
      box-shadow: 0 0 35px rgba(6, 182, 212, 0.85);
      transform: translateY(-2px);
    }
    .btn-gold {
      background: linear-gradient(135deg, var(--accent-gold), #D97706);
      color: #07070D;
      font-weight: 700;
      padding: 15px 38px;
      border-radius: 40px;
      border: none;
      font-size: 1.05rem;
      box-shadow: var(--shadow-neon-gold);
      transition: var(--transition-smooth);
    }
    .btn-gold:hover {
      box-shadow: 0 0 35px rgba(245, 158, 11, 0.75);
      transform: translateY(-2px);
    }
    .hero-image img {
      border-radius: 24px;
      box-shadow: 0 25px 60px rgba(245, 158, 11, 0.2);
      border: 1px solid rgba(255,255,255,0.08);
    }
    /* SECTION TITLES */
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .section-sub {
      color: var(--text-secondary);
      margin-bottom: 48px;
      max-width: 680px;
      font-size: 1rem;
      line-height: 1.7;
    }
    /* PROMO DETAIL CARDS */
    .promo-detail {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .promo-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .promo-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      gap: 18px;
      transition: var(--transition-smooth);
    }
    .promo-card:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--accent-gold);
    }
    .promo-tag {
      background: linear-gradient(135deg, var(--accent-pink), #E11D48);
      display: inline-block;
      width: fit-content;
      padding: 6px 18px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 0.8rem;
      color: white;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .promo-card h3 {
      font-size: 1.6rem;
      font-weight: 700;
      line-height: 1.3;
    }
    .promo-card .value-highlight {
      font-size: 2.4rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-lime));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .promo-card p {
      color: var(--text-secondary);
      font-size: 0.98rem;
      line-height: 1.7;
    }
    .promo-card .deadline {
      color: var(--accent-pink);
      font-weight: 600;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    /* SCENARIO / USAGE */
    .scenario {
      padding: 90px 0;
    }
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      transition: var(--transition-smooth);
      text-align: left;
    }
    .scenario-card:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--accent-cyan);
    }
    .scenario-icon {
      font-size: 2.2rem;
      margin-bottom: 18px;
      display: block;
    }
    .scenario-card h4 {
      font-size: 1.25rem;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .scenario-card p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.65;
    }
    /* STEP / HOW TO CLAIM */
    .claim-steps {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .steps-list {
      display: flex;
      flex-direction: column;
      gap: 28px;
      counter-reset: step-counter;
    }
    .step-item {
      display: flex;
      align-items: flex-start;
      gap: 24px;
      background: var(--bg-card);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 30px 32px;
      counter-increment: step-counter;
      transition: var(--transition-smooth);
    }
    .step-item:hover {
      border-color: var(--accent-lime);
      box-shadow: 0 0 20px rgba(163, 230, 53, 0.15);
    }
    .step-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent-lime);
      min-width: 48px;
      text-align: center;
    }
    .step-body h4 {
      font-size: 1.3rem;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .step-body p {
      color: var(--text-secondary);
      font-size: 0.98rem;
      line-height: 1.7;
    }
    /* TESTIMONIALS */
    .proof {
      padding: 90px 0;
    }
    .proof-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .proof-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      transition: var(--transition-smooth);
    }
    .proof-card:hover {
      border-color: var(--accent-cyan);
    }
    .proof-card .user-info {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #07070D;
    }
    .proof-card .comment {
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .proof-card .stats {
      color: var(--accent-gold);
      font-weight: 700;
    }
    /* FAQ */
    .faq {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      max-width: 800px;
    }
    .faq-item {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      transition: var(--transition-smooth);
    }
    .faq-item:hover {
      border-color: var(--accent-lime);
    }
    .faq-item h4 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .faq-item p {
      color: var(--text-secondary);
      font-size: 0.98rem;
      line-height: 1.7;
    }
    /* CTA BANNER */
    .cta-banner {
      padding: 90px 0;
    }
    .cta-box {
      background: linear-gradient(135deg, #1c0533, #0b0c1a);
      border: 1px solid var(--accent-gold);
      border-radius: var(--radius-lg);
      padding: 64px 40px;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 24px;
    }
    .cta-box h2 {
      font-size: 2.4rem;
      font-weight: 700;
    }
    .cta-box p {
      color: var(--text-secondary);
      max-width: 600px;
      font-size: 1.05rem;
      line-height: 1.7;
    }
    /* CONTENT LIST */
    .content-list {
      padding: 90px 0;
      background: var(--bg-secondary);
    }
    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .article-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-smooth);
      display: flex;
      flex-direction: column;
    }
    .article-card:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--accent-cyan);
      transform: translateY(-4px);
    }
    .article-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }
    .article-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex: 1;
    }
    .article-body time {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .article-body h5 {
      font-size: 1.05rem;
      font-weight: 600;
      line-height: 1.4;
    }
    .article-body p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    .read-more {
      color: var(--accent-cyan);
      font-weight: 600;
      font-size: 0.9rem;
      margin-top: auto;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    /* FOOTER */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 1px solid rgba(255,255,255,0.06);
      padding: 60px 0 30px;
      text-align: left;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links h4 {
      font-weight: 700;
      margin-bottom: 8px;
      font-size: 1rem;
    }
    .footer-links a {
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: var(--text-primary);
    }
    .copyright {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-align: center;
    }
    /* FAB LEFT */
    .fab-left {
      position: fixed;
      left: 24px;
      bottom: 96px;
      z-index: 50;
      width: 52px;
      height: 52px;
      border-radius: 16px;
      background: rgba(7,7,13,0.8);
      backdrop-filter: blur(14px);
      border: 2px solid transparent;
      background-clip: padding-box;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      color: var(--accent-lime);
      box-shadow: 0 0 22px rgba(163,230,53,0.35);
      transition: var(--transition-smooth);
      cursor: pointer;
      animation: subtle-pulse 2.4s infinite;
    }
    .fab-left:hover {
      transform: scale(1.1);
      box-shadow: 0 0 35px rgba(6,182,212,0.65);
      color: var(--accent-cyan);
    }
    @keyframes subtle-pulse {
      0%, 100% { opacity: 0.85; }
      50% { opacity: 1; }
    }
    /* Responsive */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .hero-content h1 { font-size: 2.5rem; }
      .hero-image { display: none; }
      .promo-grid { grid-template-columns: 1fr; }
      .scenario-grid { grid-template-columns: 1fr; }
      .proof-grid { grid-template-columns: 1fr; }
      .article-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
    }
    @media (max-width: 520px) {
      .container { padding-left: 18px; padding-right: 18px; }
      .hero-content h1 { font-size: 2rem; }
      .section-title { font-size: 1.7rem; }
      .cta-box h2 { font-size: 1.8rem; }
      .footer-grid { grid-template-columns: 1fr; }
      .auth-buttons { gap: 8px; }
      .btn-login, .btn-signup { padding: 8px 16px; font-size: 0.8rem; }
    }

/* roulang page: category4 */
:root {
      --bg-primary: #07070D;
      --bg-secondary: #0E0E1E;
      --bg-card: rgba(15, 15, 30, 0.65);
      --accent-cyan: #06B6D4;
      --accent-lime: #A3E635;
      --accent-pink: #F43F5E;
      --text-primary: #FFFFFF;
      --text-secondary: #94A3B8;
      --text-muted: #64748B;
      --border-glow: rgba(163, 230, 53, 0.25);
      --border-card: rgba(6, 182, 212, 0.15);
      --shadow-neon-lime: 0 0 18px rgba(163, 230, 53, 0.45);
      --shadow-neon-cyan: 0 0 22px rgba(6, 182, 212, 0.55);
      --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(6, 182, 212, 0.3);
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      margin: 0;
    }
    *, *::before, *::after { box-sizing: border-box; }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; height: auto; display: block; }
    button, .btn { cursor: pointer; font-family: inherit; }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* HEADER / NAV */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(7, 7, 13, 0.85);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(6, 182, 212, 0.12);
      transition: var(--transition-smooth);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      font-weight: 800;
      font-size: 1.35rem;
      letter-spacing: -0.01em;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 34px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links a {
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-secondary);
      transition: color 0.2s;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2.5px;
      background: var(--accent-lime);
      border-radius: 2px;
      box-shadow: 0 0 10px var(--accent-lime);
    }
    .auth-buttons {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn-login {
      background: transparent;
      border: 1px solid rgba(148, 163, 184, 0.5);
      color: var(--text-secondary);
      padding: 9px 22px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 0.9rem;
      transition: var(--transition-smooth);
      display: inline-block;
    }
    .btn-login:hover {
      border-color: var(--accent-cyan);
      color: var(--text-primary);
      background: rgba(6, 182, 212, 0.08);
    }
    .btn-signup {
      background: linear-gradient(135deg, var(--accent-lime), #4ADE80);
      color: #07070D;
      font-weight: 700;
      padding: 10px 26px;
      border: none;
      border-radius: 30px;
      font-size: 0.9rem;
      box-shadow: var(--shadow-neon-lime);
      transition: var(--transition-smooth);
      display: inline-block;
    }
    .btn-signup:hover {
      box-shadow: 0 0 28px rgba(163, 230, 53, 0.75);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: white;
      font-size: 1.8rem;
      padding: 0;
      line-height: 1;
    }
    /* HERO */
    .hero {
      padding: 140px 0 80px;
      position: relative;
      background: radial-gradient(circle at 20% 20%, #0c1a2b, var(--bg-primary) 70%);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 3.4rem;
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 24px;
      background: linear-gradient(135deg, #FFFFFF, var(--accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-top: 0;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-secondary);
      margin-bottom: 36px;
      line-height: 1.7;
      max-width: 540px;
    }
    .hero-actions {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--accent-cyan), #0891B2);
      color: white;
      font-weight: 700;
      padding: 15px 38px;
      border-radius: 40px;
      border: none;
      font-size: 1.05rem;
      box-shadow: var(--shadow-neon-cyan);
      transition: var(--transition-smooth);
      display: inline-block;
    }
    .btn-primary:hover {
      box-shadow: 0 0 35px rgba(6, 182, 212, 0.85);
      transform: translateY(-2px);
    }
    .hero-image img {
      border-radius: 24px;
      box-shadow: 0 25px 60px rgba(6, 182, 212, 0.2);
      border: 1px solid rgba(255,255,255,0.08);
    }
    /* Section Titles */
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
      margin-top: 0;
    }
    .section-sub {
      color: var(--text-secondary);
      margin-bottom: 48px;
      max-width: 680px;
      font-size: 1rem;
      line-height: 1.7;
      margin-top: 0;
    }
    /* BENTO GRID */
    .bento-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .bento-card {
      background: var(--bg-card);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      transition: var(--transition-smooth);
    }
    .bento-card:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--accent-cyan);
      transform: translateY(-4px);
    }
    .bento-card h3 {
      font-size: 1.3rem;
      font-weight: 600;
      margin-bottom: 12px;
      margin-top: 0;
    }
    .bento-card p {
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.65;
      margin: 0;
    }
    .bento-icon {
      font-size: 2.2rem;
      margin-bottom: 20px;
      display: block;
    }
    /* SECTIONS */
    .community-section {
      padding: 90px 0;
    }
    .bg-secondary {
      background: var(--bg-secondary);
    }
    .event-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .event-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition-smooth);
    }
    .event-card:hover {
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-4px);
    }
    .event-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .event-card-body {
      padding: 24px;
    }
    .event-card-body h3 {
      font-size: 1.25rem;
      font-weight: 600;
      margin-top: 0;
    }
    .event-card-body p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    .badge {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.03em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .badge-pink {
      background: rgba(244, 63, 94, 0.2);
      color: var(--accent-pink);
      border: 1px solid rgba(244, 63, 94, 0.3);
    }
    .badge-cyan {
      background: rgba(6, 182, 212, 0.2);
      color: var(--accent-cyan);
      border: 1px solid rgba(6, 182, 212, 0.3);
    }
    .badge-lime {
      background: rgba(163, 230, 53, 0.2);
      color: var(--accent-lime);
      border: 1px solid rgba(163, 230, 53, 0.3);
    }
    /* CTA */
    .cta-section {
      padding: 100px 0;
      text-align: center;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(163, 230, 53, 0.05));
      border-top: 1px solid rgba(6, 182, 212, 0.15);
      border-bottom: 1px solid rgba(6, 182, 212, 0.15);
    }
    .cta-section h2 {
      font-size: 2.5rem;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-section p {
      color: var(--text-secondary);
      font-size: 1.1rem;
      margin-bottom: 36px;
    }
    /* LIST */
    .post-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 20px;
    }
    .post-list li {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      transition: var(--transition-smooth);
    }
    .post-list li:hover {
      box-shadow: var(--shadow-card-hover);
      border-color: var(--accent-cyan);
    }
    .post-list a {
      font-weight: 600;
      font-size: 1.1rem;
      color: var(--text-primary);
      display: block;
      margin-bottom: 8px;
      transition: color 0.2s;
    }
    .post-list a:hover {
      color: var(--accent-cyan);
    }
    .post-list p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin: 0;
    }
    .post-meta {
      display: flex;
      gap: 16px;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 8px;
    }
    .view-more {
      display: inline-block;
      margin-top: 24px;
      color: var(--accent-lime);
      font-weight: 600;
      font-size: 1rem;
      border-bottom: 1px solid transparent;
      transition: 0.2s;
    }
    .view-more:hover {
      border-bottom-color: var(--accent-lime);
    }
    /* FOOTER */
    .site-footer {
      background: #05050A;
      border-top: 1px solid rgba(148, 163, 184, 0.1);
      padding: 60px 0 30px;
      margin-top: 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-links h4 {
      color: var(--text-primary);
      margin-bottom: 16px;
      font-size: 1rem;
      font-weight: 700;
    }
    .footer-links a {
      display: block;
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-bottom: 10px;
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
    }
    .copyright {
      color: var(--text-muted);
      text-align: center;
      font-size: 0.85rem;
      border-top: 1px solid rgba(148, 163, 184, 0.1);
      padding-top: 24px;
    }
    /* FAB */
    .fab {
      position: fixed;
      left: 24px;
      bottom: 96px;
      z-index: 50;
      width: 56px;
      height: 56px;
      background: rgba(7, 7, 13, 0.8);
      backdrop-filter: blur(12px);
      border: 2px solid;
      border-image: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan)) 1;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
      transition: var(--transition-smooth);
      animation: fabFloat 2.5s infinite alternate ease-in-out;
    }
    @keyframes fabFloat {
      0% { transform: translateY(0); }
      100% { transform: translateY(-6px); }
    }
    .fab:hover {
      box-shadow: 0 0 35px rgba(163, 230, 53, 0.75);
      transform: scale(1.1);
      border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink)) 1;
    }
    /* RESPONSIVE */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-content h1 {
        font-size: 2.5rem;
      }
      .hero-image {
        display: none;
      }
      .bento-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .event-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .nav-links {
        gap: 20px;
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .bento-grid {
        grid-template-columns: 1fr;
      }
      .event-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .section-title {
        font-size: 1.8rem;
      }
      .hero-content h1 {
        font-size: 2rem;
      }
      .cta-section h2 {
        font-size: 1.8rem;
      }
    }
    @media (max-width: 520px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-actions {
        flex-direction: column;
        gap: 12px;
      }
      .btn-primary, .btn-outline-glow {
        width: 100%;
        text-align: center;
      }
    }