/* roulang page: index */
:root {
      --bg-deep: #081229;
      --bg-surface: #0E1628;
      --bg-card: rgba(15, 25, 50, 0.75);
      --accent-blue: #2563EB;
      --accent-cyan: #38BDF8;
      --accent-glow: rgba(37, 99, 235, 0.5);
      --text-primary: #F8FAFC;
      --text-secondary: #94A3B8;
      --text-accent: #60A5FA;
      --border-subtle: rgba(148, 163, 184, 0.18);
      --border-glow: rgba(96, 165, 250, 0.4);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 22px;
      --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
      --shadow-glow: 0 0 22px rgba(37, 99, 235, 0.3);
      --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: var(--font-sans);
      background: radial-gradient(ellipse at 50% 0%, #0C1A3A 0%, var(--bg-deep) 70%);
      color: var(--text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; height: auto; display: block; }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* Navigation */
    .navbar {
      background: rgba(8, 18, 41, 0.88);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-subtle);
      padding: 14px 0;
      position: sticky;
      top: 0;
      z-index: 1050;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }
    .nav-logo {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, #38BDF8 0%, #60A5FA 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 2rem;
      flex-wrap: wrap;
    }
    .nav-links a {
      font-weight: 550;
      font-size: 0.95rem;
      color: var(--text-secondary);
      transition: color 0.2s, text-shadow 0.2s;
      position: relative;
    }
    .nav-links a.active,
    .nav-links a:hover {
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-cyan);
      border-radius: 1px;
      box-shadow: 0 0 8px var(--accent-cyan);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-login {
      background: transparent;
      border: 1px solid var(--border-glow);
      color: var(--text-primary);
      padding: 9px 18px;
      border-radius: 28px;
      font-weight: 600;
      transition: all 0.25s;
      cursor: pointer;
    }
    .btn-login:hover {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 14px rgba(56, 189, 248, 0.3);
      color: #fff;
    }
    .btn-signup {
      background: linear-gradient(135deg, #2563EB, #1D4ED8);
      border: none;
      color: #fff;
      padding: 10px 22px;
      border-radius: 28px;
      font-weight: 650;
      box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
      transition: all 0.25s;
      cursor: pointer;
    }
    .btn-signup:hover {
      background: linear-gradient(135deg, #3B82F6, #2563EB);
      box-shadow: 0 6px 24px rgba(56, 189, 248, 0.55);
      transform: translateY(-1px);
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-primary);
      font-size: 1.7rem;
      cursor: pointer;
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        margin-top: 16px;
        padding-top: 12px;
        border-top: 1px solid var(--border-subtle);
      }
      .nav-links.open {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-actions {
        gap: 8px;
      }
      .btn-signup,
      .btn-login {
        padding: 8px 16px;
        font-size: 0.9rem;
      }
    }
    /* Hero Video */
    .hero-video {
      position: relative;
      width: 100%;
      min-height: 85vh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background: #030712;
    }
    .hero-video video {
      position: absolute;
      top: 0; left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.55;
    }
    .hero-overlay {
      position: relative;
      z-index: 2;
      text-align: left;
      max-width: 800px;
      padding: 0 24px;
    }
    .hero-overlay h1 {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1.2rem;
      background: linear-gradient(to right, #FFFFFF, #A5D8FF);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-overlay .hero-desc {
      font-size: 1.15rem;
      color: var(--text-secondary);
      margin-bottom: 2rem;
      max-width: 620px;
    }
    .hero-btns {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-cta {
      background: #2563EB;
      border: none;
      padding: 14px 32px;
      border-radius: 36px;
      font-weight: 700;
      color: #fff;
      box-shadow: 0 0 24px rgba(37, 99, 235, 0.55);
      transition: all 0.3s;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-cta:hover {
      background: #3B82F6;
      box-shadow: 0 0 36px rgba(56, 189, 248, 0.6);
      transform: translateY(-2px);
    }
    .btn-outline-cta {
      background: transparent;
      border: 2px solid rgba(248, 250, 252, 0.6);
      padding: 14px 28px;
      border-radius: 36px;
      color: #fff;
      font-weight: 650;
      transition: 0.3s;
      cursor: pointer;
    }
    .btn-outline-cta:hover {
      border-color: var(--accent-cyan);
      background: rgba(37, 99, 235, 0.12);
    }
    .play-btn {
      background: rgba(255,255,255,0.12);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(255,255,255,0.25);
      width: 64px;
      height: 64px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.5rem;
      cursor: pointer;
      transition: 0.3s;
    }
    .play-btn i { font-size: 1.8rem; color: #fff; }
    .play-btn:hover { background: rgba(37,99,235,0.35); }
    @media (max-width: 768px) {
      .hero-overlay h1 { font-size: 2.2rem; }
      .hero-overlay .hero-desc { font-size: 1rem; }
    }
    /* Section */
    .section {
      padding: 5rem 0;
      position: relative;
    }
    .section-label {
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--accent-cyan);
      margin-bottom: 0.6rem;
      font-weight: 600;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 750;
      margin-bottom: 1rem;
      line-height: 1.3;
    }
    .section-desc {
      color: var(--text-secondary);
      max-width: 680px;
      margin-bottom: 2.4rem;
      font-size: 1.05rem;
    }
    /* Cards */
    .card-glass {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 2rem 1.8rem;
      transition: all 0.3s;
      height: 100%;
    }
    .card-glass:hover {
      border-color: var(--border-glow);
      box-shadow: var(--shadow-glow);
      transform: translateY(-4px);
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 28px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 28px;
    }
    .badge-accent {
      background: rgba(37, 99, 235, 0.2);
      color: var(--accent-cyan);
      padding: 5px 14px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    /* Pricing */
    .pricing-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 2.2rem;
      text-align: left;
      transition: 0.3s;
      position: relative;
    }
    .pricing-card.featured {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 28px rgba(37, 99, 235, 0.5);
    }
    .pricing-price {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--accent-cyan);
    }
    /* Footer */
    .footer {
      background: #040B1A;
      border-top: 1px solid var(--border-subtle);
      padding: 3rem 0 2rem;
      color: var(--text-secondary);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 2rem;
    }
    .footer a { color: var(--text-secondary); transition: color 0.2s; }
    .footer a:hover { color: var(--accent-cyan); }
    /* FAB */
    .fab-left {
      position: fixed;
      left: 18px;
      bottom: 90px;
      z-index: 999;
      width: 52px;
      height: 52px;
      background: rgba(8,18,41,0.8);
      backdrop-filter: blur(14px);
      border: 1.5px solid var(--border-glow);
      border-radius: 50%;
      color: var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      box-shadow: 0 0 20px rgba(37,99,235,0.4);
      transition: 0.3s;
      cursor: pointer;
    }
    .fab-left:hover {
      background: #2563EB;
      color: #fff;
      box-shadow: 0 0 32px #38BDF8;
    }

/* roulang page: article */
:root {
            --bg-deep: #081229;
            --bg-surface: #0E1628;
            --bg-card: rgba(15, 25, 50, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-glow: rgba(37, 99, 235, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-accent: #60A5FA;
            --border-subtle: rgba(148, 163, 184, 0.18);
            --border-glow: rgba(96, 165, 250, 0.4);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 22px rgba(37, 99, 235, 0.3);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: radial-gradient(ellipse at 50% 0%, #0C1A3A 0%, var(--bg-deep) 70%);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .navbar {
            background: rgba(8, 18, 41, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #38BDF8 0%, #60A5FA 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .nav-links a {
            font-weight: 550;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: color 0.2s, text-shadow 0.2s;
            position: relative;
        }

        .nav-links a.active,
        .nav-links a:hover {
            color: var(--accent-cyan);
            text-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 1px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-glow);
            color: var(--text-primary);
            padding: 9px 18px;
            border-radius: 28px;
            font-weight: 600;
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 14px rgba(56, 189, 248, 0.3);
            color: #fff;
        }

        .btn-signup {
            background: linear-gradient(135deg, #2563EB, #1D4ED8);
            border: none;
            color: #fff;
            padding: 10px 22px;
            border-radius: 28px;
            font-weight: 650;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            box-shadow: 0 6px 24px rgba(56, 189, 248, 0.55);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.7rem;
            cursor: pointer;
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            width: 100%;
            min-height: 50vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: #030712;
        }

        .article-banner img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
        }

        .banner-overlay {
            position: relative;
            z-index: 2;
            text-align: left;
            max-width: 860px;
            padding: 0 24px;
            width: 100%;
        }

        .banner-overlay h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1rem;
            background: linear-gradient(to right, #FFFFFF, #A5D8FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .article-meta {
            display: flex;
            gap: 24px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .category-tag {
            background: rgba(37, 99, 235, 0.25);
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
        }

        /* Article Content */
        .article-content-section {
            padding: 60px 0;
        }

        .article-body {
            max-width: 820px;
            margin: 0 auto;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-card);
            line-height: 1.75;
            color: var(--text-primary);
            font-size: 1.05rem;
        }

        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            color: #fff;
            border-left: 4px solid var(--accent-cyan);
            padding-left: 16px;
        }

        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 650;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: var(--text-accent);
        }

        .article-body p {
            margin-bottom: 1.2rem;
            color: var(--text-secondary);
            text-align: left;
        }

        .article-body strong {
            color: #fff;
            font-weight: 650;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--text-secondary);
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent-cyan);
            padding: 16px 24px;
            margin: 28px 0;
            background: rgba(37, 99, 235, 0.08);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: #CBD5E1;
            font-size: 1.1rem;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: #7DD3FC;
        }

        .not-found {
            text-align: center;
            padding: 80px 24px;
            max-width: 600px;
            margin: 0 auto;
        }

        .not-found i {
            font-size: 3rem;
            color: var(--text-secondary);
            margin-bottom: 1.2rem;
            display: block;
        }

        .not-found h3 {
            font-size: 1.6rem;
            margin-bottom: 0.8rem;
            color: #fff;
        }

        .not-found p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .btn-back-home {
            background: linear-gradient(135deg, #2563EB, #1D4ED8);
            border: none;
            color: #fff;
            padding: 12px 28px;
            border-radius: 28px;
            font-weight: 650;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
            transition: all 0.25s;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-back-home:hover {
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            box-shadow: 0 6px 24px rgba(56, 189, 248, 0.55);
            transform: translateY(-1px);
        }

        /* Related Posts */
        .related-section {
            padding: 60px 0 80px;
        }

        .section-label {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-cyan);
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 750;
            margin-bottom: 2.5rem;
            color: #fff;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.25s;
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }

        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 20px 18px;
        }

        .related-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0.8rem;
        }

        .related-card-body .read-more {
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }

        .related-card-body .read-more:hover {
            gap: 10px;
        }

        /* Footer */
        .footer {
            background: rgba(8, 18, 41, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 28px;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-grid h5,
        .footer-grid h6 {
            color: #fff;
            font-weight: 700;
        }

        .footer-grid a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }

        .footer-grid a:hover {
            color: var(--accent-cyan);
        }

        .badge-dark {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        hr {
            opacity: 0.2;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .banner-overlay h1 {
                font-size: 2.2rem;
            }
            .article-body {
                padding: 32px 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 1rem;
                margin-top: 16px;
                padding-top: 12px;
                border-top: 1px solid var(--border-subtle);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-signup,
            .btn-login {
                padding: 8px 16px;
                font-size: 0.9rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-banner {
                min-height: 40vh;
            }
            .banner-overlay h1 {
                font-size: 1.9rem;
            }
            .article-body {
                padding: 24px 18px;
                font-size: 0.98rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .banner-overlay h1 {
                font-size: 1.6rem;
            }
            .article-body {
                padding: 20px 14px;
            }
            .article-body blockquote {
                padding: 12px 16px;
                font-size: 0.95rem;
            }
        }

/* roulang page: category1 */
:root {
  --bg-deep: #081229;
  --bg-surface: #0E1628;
  --bg-card: rgba(15, 25, 50, 0.75);
  --accent-blue: #2563EB;
  --accent-cyan: #38BDF8;
  --accent-glow: rgba(37, 99, 235, 0.5);
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-accent: #60A5FA;
  --border-subtle: rgba(148, 163, 184, 0.18);
  --border-glow: rgba(96, 165, 250, 0.4);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 22px rgba(37, 99, 235, 0.3);
  --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body {
  margin: 0;
  font-family: var(--font-sans);
  background: radial-gradient(ellipse at 50% 0%, #0C1A3A 0%, var(--bg-deep) 70%);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.container-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
/* Navbar */
.navbar {
  background: rgba(8, 18, 41, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1050;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.nav-logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #38BDF8 0%, #60A5FA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.nav-links a {
  font-weight: 550;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: color 0.2s, text-shadow 0.2s;
  position: relative;
}
.nav-links a.active,
.nav-links a:hover {
  color: var(--accent-cyan);
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 1px;
  box-shadow: 0 0 8px var(--accent-cyan);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-login {
  background: transparent;
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  padding: 9px 18px;
  border-radius: 28px;
  font-weight: 600;
  transition: all 0.25s;
  cursor: pointer;
}
.btn-login:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.3);
  color: #fff;
}
.btn-signup {
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
  border: none;
  color: #fff;
  padding: 10px 22px;
  border-radius: 28px;
  font-weight: 650;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
  transition: all 0.25s;
  cursor: pointer;
}
.btn-signup:hover {
  background: linear-gradient(135deg, #3B82F6, #2563EB);
  box-shadow: 0 6px 24px rgba(56, 189, 248, 0.55);
  transform: translateY(-1px);
}
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.7rem;
  cursor: pointer;
}
@media(max-width:991px){
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 1rem;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
  }
  .nav-links.open{display:flex;}
  .mobile-menu-toggle{display:block;}
  .nav-actions{gap:8px;}
  .btn-signup,.btn-login{padding:8px 16px;font-size:0.9rem;}
}

/* Section Spacing */
.section {
  padding: 60px 0;
}
.section-title {
  font-size: 2rem;
  font-weight: 750;
  margin-bottom: 1rem;
  color: var(--text-primary);
}
/* Hero */
.hero-cat {
  position: relative;
  padding: 70px 0;
  background: linear-gradient(135deg, rgba(8,18,41,0.9) 0%, rgba(15,25,50,0.8) 100%);
  border-bottom: 1px solid var(--border-subtle);
}
.hero-cat h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #FFFFFF, #A5D8FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-cat .lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 2rem;
}
.btn-primary-cta {
  background: #2563EB;
  border: none;
  padding: 14px 34px;
  border-radius: 36px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.55);
  transition: 0.3s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary-cta:hover {
  background: #3B82F6;
  box-shadow: 0 0 36px rgba(56, 189, 248, 0.6);
  transform: translateY(-2px);
}
/* Cards */
.card-glass {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.3s;
  box-shadow: var(--shadow-card);
}
.card-glass:hover {
  border-color: var(--border-glow);
  box-shadow: 0 12px 32px rgba(37,99,235,0.35);
  transform: translateY(-4px);
}
.card-img-wrapper {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
  background: #0A1835;
  position: relative;
}
.badge-vip {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(234, 88, 12, 0.9);
  color: #fff;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 20px;
  backdrop-filter: blur(6px);
  letter-spacing: 0.5px;
}
/* FAQ Section */
.faq-item {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin-bottom: 12px;
  transition: 0.25s;
}
.faq-item h5 {
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.faq-item p {
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: 0.95rem;
}
/* CTA */
.cta-section {
  background: linear-gradient(135deg, rgba(37,99,235,0.2), rgba(15,25,50,0.9));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 50px 30px;
  text-align: center;
}
.cta-section h3 {
  font-size: 2rem;
  font-weight: 750;
  margin-bottom: 1rem;
}
/* List News */
.news-list .card-glass {
  margin-bottom: 20px;
}
.news-list .card-title {
  font-size: 1.1rem;
  font-weight: 650;
}
.news-list .card-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
/* Footer */
.footer {
  background: rgba(7, 15, 35, 0.95);
  border-top: 1px solid var(--border-subtle);
  padding: 50px 0 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.footer a {
  color: var(--text-secondary);
  transition: 0.2s;
}
.footer a:hover {
  color: var(--accent-cyan);
}
@media(max-width:768px){
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .hero-cat h1{font-size:2rem;}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .hero-cat h1{font-size:1.6rem;}
}

/* roulang page: category2 */
:root {
            --bg-deep: #081229;
            --bg-surface: #0E1628;
            --bg-card: rgba(15, 25, 50, 0.75);
            --accent-blue: #2563EB;
            --accent-cyan: #38BDF8;
            --accent-glow: rgba(37, 99, 235, 0.5);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-accent: #60A5FA;
            --border-subtle: rgba(148, 163, 184, 0.18);
            --border-glow: rgba(96, 165, 250, 0.4);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 22px rgba(37, 99, 235, 0.3);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
        }

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

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: radial-gradient(ellipse at 50% 0%, #0C1A3A 0%, var(--bg-deep) 70%);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .navbar {
            background: rgba(8, 18, 41, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #38BDF8 0%, #60A5FA 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .nav-links a {
            font-weight: 550;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: color 0.2s, text-shadow 0.2s;
            position: relative;
            white-space: nowrap;
        }

        .nav-links a.active,
        .nav-links a:hover {
            color: var(--accent-cyan);
            text-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 1px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-glow);
            color: var(--text-primary);
            padding: 9px 18px;
            border-radius: 28px;
            font-weight: 600;
            transition: all 0.25s;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 14px rgba(56, 189, 248, 0.3);
            color: #fff;
        }

        .btn-signup {
            background: linear-gradient(135deg, #2563EB, #1D4ED8);
            border: none;
            color: #fff;
            padding: 10px 22px;
            border-radius: 28px;
            font-weight: 650;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
            transition: all 0.25s;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            box-shadow: 0 6px 24px rgba(56, 189, 248, 0.55);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.7rem;
            cursor: pointer;
        }

        @media (max-width: 991px) {
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 1rem;
                margin-top: 16px;
                padding-top: 12px;
                border-top: 1px solid var(--border-subtle);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-signup,
            .btn-login {
                padding: 8px 16px;
                font-size: 0.9rem;
            }
        }

        .page-header {
            background: linear-gradient(180deg, rgba(12, 26, 58, 0.9) 0%, rgba(8, 18, 41, 0.95) 100%), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            padding: 80px 0 60px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .page-header h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            background: linear-gradient(to right, #FFFFFF, #A5D8FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-header .lead {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: 0;
        }

        .section {
            padding: 70px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 750;
            margin-bottom: 1rem;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
            max-width: 650px;
        }

        .game-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .game-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            position: relative;
        }

        .game-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 28px rgba(37, 99, 235, 0.3);
            transform: translateY(-4px);
        }

        .game-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
        }

        .game-card-body {
            padding: 18px 20px;
        }

        .game-card-body h5 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .game-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .badge-jackpot {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            color: #000;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 20px;
            display: inline-block;
            letter-spacing: 0.3px;
        }

        .badge-new {
            background: var(--accent-blue);
            color: #fff;
            font-weight: 650;
            font-size: 0.7rem;
            padding: 4px 10px;
            border-radius: 20px;
            display: inline-block;
            margin-left: 6px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 18px;
        }

        .feature-list li {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 20px 22px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: all 0.25s;
        }

        .feature-list li:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 18px rgba(37, 99, 235, 0.2);
        }

        .feature-list li i {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-top: 2px;
        }

        .feature-list li strong {
            display: block;
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 4px;
        }

        .feature-list li span {
            color: var(--text-secondary);
            font-size: 0.9rem;
            display: block;
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            border: 1px solid var(--border-subtle);
        }

        .stat-item {
            text-align: left;
        }

        .stat-item .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1.1;
        }

        .stat-item .stat-label {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 4px;
        }

        .info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .info-grid img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }

        .btn-cta-lg {
            background: linear-gradient(135deg, #2563EB, #1D4ED8);
            border: none;
            color: #fff;
            padding: 14px 32px;
            border-radius: 36px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 0 20px rgba(37, 99, 235, 0.55);
            transition: all 0.3s;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-lg:hover {
            background: linear-gradient(135deg, #3B82F6, #2563EB);
            box-shadow: 0 0 36px rgba(56, 189, 248, 0.55);
            transform: translateY(-2px);
        }

        .info-text h2 {
            font-size: 1.9rem;
            font-weight: 750;
            margin-bottom: 1rem;
            color: #fff;
        }

        .info-text p {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 22px 26px;
            margin-bottom: 16px;
            transition: all 0.25s;
        }

        .faq-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 16px rgba(37, 99, 235, 0.18);
        }

        .faq-item h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .faq-item p {
            color: var(--text-secondary);
            margin-bottom: 0;
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .cta-banner {
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(29, 78, 216, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: left;
        }

        .cta-banner h3 {
            font-size: 1.9rem;
            font-weight: 750;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-banner p {
            color: var(--text-secondary);
            max-width: 550px;
            margin-bottom: 24px;
        }

        .footer {
            background: rgba(6, 14, 30, 0.95);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 30px;
        }

        .footer a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }

        .footer a:hover {
            color: var(--accent-cyan);
        }

        .footer hr {
            border-color: var(--border-subtle);
        }

        @media (max-width: 767px) {
            .page-header h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .cta-banner {
                padding: 32px 24px;
            }
            .game-card-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: 16px;
            }
        }

/* roulang page: category3 */
/* ===== DESIGN SYSTEM (Aligned with Index) ===== */
        :root {
            --bg-deep: #031A12;
            --bg-surface: #042619;
            --bg-card: rgba(4, 38, 25, 0.78);
            --accent-gold: #F59E0B;
            --accent-amber: #D97706;
            --accent-green: #10B981;
            --accent-glow: rgba(245, 158, 11, 0.45);
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --border-subtle: rgba(167, 243, 208, 0.16);
            --border-glow: rgba(245, 158, 11, 0.5);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px rgba(245, 158, 11, 0.35);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: radial-gradient(ellipse at 50% 0%, #042D1E 0%, var(--bg-deep) 70%);
            color: var(--text-primary);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .navbar {
            background: rgba(3, 26, 18, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #FCD34D 0%, #F59E0B 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            flex-wrap: wrap;
        }

        .nav-links a {
            font-weight: 550;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: color 0.2s, text-shadow 0.2s;
            position: relative;
        }

        .nav-links a.active,
        .nav-links a:hover {
            color: #FCD34D;
            text-shadow: 0 0 10px rgba(252, 211, 77, 0.5);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #FCD34D;
            border-radius: 1px;
            box-shadow: 0 0 8px #FCD34D;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(252, 211, 77, 0.4);
            color: #FCD34D;
            padding: 9px 18px;
            border-radius: 28px;
            font-weight: 600;
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-login:hover {
            border-color: #F59E0B;
            box-shadow: 0 0 14px rgba(245, 158, 11, 0.35);
            color: #fff;
        }

        .btn-signup {
            background: linear-gradient(135deg, #D97706, #B45309);
            border: none;
            color: #fff;
            padding: 10px 22px;
            border-radius: 28px;
            font-weight: 650;
            box-shadow: 0 4px 16px rgba(217, 119, 6, 0.45);
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.55);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.7rem;
            cursor: pointer;
        }

        /* Hero Section */
        .hero-category {
            padding: 70px 0 60px;
            display: flex;
            align-items: center;
            min-height: 60vh;
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-6.jpg');
            background-size: cover;
            background-position: center;
            border-bottom-left-radius: 0;
            border-bottom-right-radius: 0;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(3, 26, 18, 0.92) 0%, rgba(3, 26, 18, 0.6) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, 0.2);
            border: 1px solid rgba(245, 158, 11, 0.4);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #FCD34D;
            margin-bottom: 1.5rem;
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            color: #fff;
        }

        .hero-content h1 span {
            background: linear-gradient(to right, #FCD34D, #F59E0B);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 550px;
        }

        .btn-cta-gold {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            border: none;
            padding: 14px 36px;
            border-radius: 36px;
            font-weight: 700;
            color: #041B11;
            box-shadow: 0 0 24px rgba(245, 158, 11, 0.55);
            transition: all 0.3s;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.05rem;
        }

        .btn-cta-gold:hover {
            background: #FBBF24;
            box-shadow: 0 0 36px rgba(251, 191, 36, 0.65);
            transform: translateY(-2px);
            color: #000;
        }

        /* Section Titles */
        .section-title {
            font-size: 2rem;
            font-weight: 750;
            margin-bottom: 0.75rem;
            color: #fff;
        }

        .section-title span {
            color: #FCD34D;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 3rem;
            max-width: 650px;
        }

        /* Game Cards Grid */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 2rem;
        }

        .game-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }

        .game-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-5px);
        }

        .game-card img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }

        .game-card-body {
            padding: 18px;
        }

        .game-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: #fff;
        }

        .game-tag {
            font-size: 0.75rem;
            background: rgba(16, 185, 129, 0.25);
            color: #10B981;
            padding: 3px 10px;
            border-radius: 14px;
            display: inline-block;
            margin-top: 8px;
            font-weight: 600;
        }

        .game-card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-subtle);
            padding: 14px 18px;
            margin-top: 8px;
        }

        .jackpot-badge {
            color: #FCD34D;
            font-weight: 700;
            font-size: 0.9rem;
        }

        /* Promo Bar (Flash Sale Style) */
        .promo-flash {
            background: linear-gradient(105deg, #B45309 0%, #92400E 100%);
            border: 1px solid #F59E0B;
            border-radius: var(--radius-md);
            padding: 24px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            margin: 2rem 0;
            box-shadow: 0 0 30px rgba(245, 158, 11, 0.3);
        }

        .flash-text h2 {
            margin: 0;
            font-size: 1.8rem;
            font-weight: 800;
        }

        .flash-timer {
            font-size: 2rem;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: #FCD34D;
        }

        /* Process Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 2rem;
        }

        .step-item {
            background: rgba(15, 59, 35, 0.6);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px;
            text-align: left;
            transition: 0.3s;
        }

        .step-item:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4);
        }

        .step-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #F59E0B;
            opacity: 0.7;
            margin-bottom: 0.75rem;
        }

        .step-item h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }

        /* Feature List */
        .feature-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
            margin: 3rem 0;
        }

        .feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 0 36px rgba(245, 158, 11, 0.2);
            border: 1px solid var(--border-subtle);
        }

        .feature-list {
            list-style: none;
            padding: 0;
        }

        .feature-list li {
            display: flex;
            gap: 14px;
            margin-bottom: 1.5rem;
            color: var(--text-secondary);
        }

        .feature-list i {
            color: #F59E0B;
            font-size: 1.4rem;
            margin-top: 2px;
        }

        /* FAQ */
        .faq-section {
            background: rgba(6, 35, 22, 0.6);
            border-radius: var(--radius-lg);
            padding: 40px;
            margin: 3rem 0;
            border: 1px solid var(--border-subtle);
        }

        .accordion-button {
            background: rgba(10, 50, 30, 0.7) !important;
            color: #fff !important;
            font-weight: 650;
            border: none !important;
            box-shadow: none !important;
            padding: 18px 20px;
            border-radius: var(--radius-sm) !important;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(245, 158, 11, 0.2) !important;
            color: #FCD34D !important;
            border: 1px solid rgba(245, 158, 11, 0.3) !important;
        }

        .accordion-body {
            color: var(--text-secondary);
            background: rgba(4, 26, 19, 0.4);
            border-radius: 0 0 var(--radius-sm) var(--radius-sm);
            padding: 20px;
        }

        /* Blog List */
        .blog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .blog-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: 0.3s;
        }

        .blog-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-glow);
        }

        .blog-card img {
            height: 160px;
            object-fit: cover;
        }

        .blog-body {
            padding: 18px;
        }

        .blog-body h4 {
            font-size: 1rem;
            font-weight: 700;
        }

        .blog-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 8px 0;
        }

        /* Footer */
        .footer {
            background: #02110C;
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: 4rem;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 2rem;
        }

        .footer a {
            color: var(--text-secondary);
            transition: 0.2s;
        }

        .footer a:hover {
            color: #FCD34D;
        }

        /* FAB */
        .fab-treasure {
            position: fixed;
            left: 24px;
            bottom: 100px;
            z-index: 1055;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #FBBF24, #B45309);
            border: 2px solid #FCD34D;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #041B11;
            font-size: 1.8rem;
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.4);
            cursor: pointer;
            transition: 0.3s;
            animation: float 3s infinite;
        }

        .fab-treasure:hover {
            transform: scale(1.12);
            box-shadow: 0 0 30px rgba(245, 158, 11, 0.7);
        }

        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }

        /* Responsive */
        @media (max-width: 992px) {
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .blog-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .feature-row {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 1rem;
                margin-top: 16px;
                padding-top: 12px;
                border-top: 1px solid var(--border-subtle);
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .promo-flash {
                flex-direction: column;
                text-align: center;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .blog-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
        }

/* roulang page: category4 */
:root {
  --bg-deep: #081229;
  --bg-surface: #0E1628;
  --bg-card: rgba(15, 25, 50, 0.75);
  --accent-blue: #2563EB;
  --accent-cyan: #38BDF8;
  --accent-glow: rgba(37, 99, 235, 0.5);
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-accent: #60A5FA;
  --border-subtle: rgba(148, 163, 184, 0.18);
  --border-glow: rgba(96, 165, 250, 0.4);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 22px rgba(37, 99, 235, 0.3);
  --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: radial-gradient(ellipse at 50% 0%, #0C1A3A 0%, var(--bg-deep) 70%);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.navbar {
  background: rgba(8, 18, 41, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1050;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.nav-logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #38BDF8 0%, #60A5FA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.nav-links a {
  font-weight: 550;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: color 0.2s, text-shadow 0.2s;
  position: relative;
}
.nav-links a.active, .nav-links a:hover { color: var(--accent-cyan); text-shadow: 0 0 8px rgba(56, 189, 248, 0.5); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -6px; left: 0; width: 100%; height: 2px;
  background: var(--accent-cyan); border-radius: 1px; box-shadow: 0 0 8px var(--accent-cyan);
}
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-login {
  background: transparent; border: 1px solid var(--border-glow); color: var(--text-primary);
  padding: 9px 18px; border-radius: 28px; font-weight: 600; transition: all 0.25s; cursor: pointer;
}
.btn-login:hover { border-color: var(--accent-cyan); box-shadow: 0 0 14px rgba(56, 189, 248, 0.3); color: #fff; }
.btn-signup {
  background: linear-gradient(135deg, #2563EB, #1D4ED8); border: none; color: #fff;
  padding: 10px 22px; border-radius: 28px; font-weight: 650;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45); transition: all 0.25s; cursor: pointer;
}
.btn-signup:hover { background: linear-gradient(135deg, #3B82F6, #2563EB); box-shadow: 0 6px 24px rgba(56, 189, 248, 0.55); transform: translateY(-1px); }
.mobile-menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.7rem; cursor: pointer; }

.category-hero {
  background: linear-gradient(135deg, #0A1A3A 0%, #071126 100%);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.category-hero::before {
  content: ''; position: absolute; top: -60px; right: -60px; width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%); border-radius: 50%; pointer-events: none;
}
.hero-content { position: relative; z-index: 2; }
.hero-content h1 { font-size: 3rem; font-weight: 800; line-height: 1.25; margin-bottom: 1rem; background: linear-gradient(to right, #FFFFFF, #A5D8FF); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 1.15rem; color: var(--text-secondary); max-width: 680px; margin-bottom: 2.2rem; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; margin-top: 2.5rem; }
.stat-item { text-align: left; }
.stat-value { font-size: 2rem; font-weight: 750; color: var(--accent-cyan); line-height: 1.2; }
.stat-label { font-size: 0.9rem; color: var(--text-secondary); }

.section { padding: 70px 0; }
.section-title { font-size: 2rem; font-weight: 750; margin-bottom: 1rem; color: var(--text-primary); }
.section-subtitle { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 2.5rem; max-width: 680px; }

.glass-card {
  background: rgba(15, 25, 50, 0.75);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: all 0.3s;
}
.glass-card:hover { border-color: var(--border-glow); box-shadow: 0 12px 32px rgba(37, 99, 235, 0.35); transform: translateY(-3px); }

.game-card { padding: 24px; border-radius: var(--radius-md); background: var(--bg-card); border: 1px solid var(--border-subtle); transition: all 0.3s; }
.game-card:hover { border-color: var(--border-glow); box-shadow: 0 0 18px rgba(37, 99, 235, 0.25); transform: translateY(-2px); }
.game-card img { border-radius: 12px; margin-bottom: 16px; }
.game-card h4 { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.game-card .prov { color: var(--text-accent); font-size: 0.85rem; }
.game-card .badge-vip { background: linear-gradient(135deg, #F59E0B, #FCD34D); color: #000; font-weight: 700; padding: 4px 10px; border-radius: 20px; font-size: 0.8rem; }

.feature-row { display: flex; align-items: center; gap: 60px; flex-wrap: wrap; }
.feature-row .img-holder { flex: 1; min-width: 280px; border-radius: var(--radius-lg); overflow: hidden; }
.feature-row .text-holder { flex: 1; min-width: 280px; }
.feature-row .text-holder h2 { font-size: 1.9rem; font-weight: 750; margin-bottom: 1rem; }

.list-check li { list-style: none; margin-bottom: 12px; padding-left: 28px; position: relative; color: var(--text-secondary); }
.list-check li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; color: var(--accent-cyan); }

.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-box { padding: 24px; text-align: left; border-radius: var(--radius-md); background: var(--bg-card); border: 1px solid var(--border-subtle); }
.step-num { font-size: 2.5rem; font-weight: 800; color: var(--accent-cyan); opacity: 0.8; line-height: 1; margin-bottom: 10px; }
.step-box h5 { font-weight: 700; margin-bottom: 6px; }

.btn-primary-glow {
  background: #2563EB; border: none; padding: 14px 30px; border-radius: 36px; font-weight: 700; color: #fff;
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.55); transition: all 0.3s; cursor: pointer; display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary-glow:hover { background: #3B82F6; box-shadow: 0 0 36px rgba(56, 189, 248, 0.6); transform: translateY(-2px); }

.footer {
  background: rgba(8, 18, 41, 0.9); border-top: 1px solid var(--border-subtle);
  padding: 50px 0 30px; color: var(--text-secondary); font-size: 0.95rem;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
.footer h5, .footer h6 { color: #fff; }
.footer a { color: var(--text-secondary); transition: color 0.2s; }
.footer a:hover { color: var(--accent-cyan); }

.faq-item { border-bottom: 1px solid var(--border-subtle); padding: 18px 0; }
.faq-q { font-weight: 700; font-size: 1.05rem; margin-bottom: 6px; cursor: pointer; }
.faq-a { color: var(--text-secondary); }

.news-card { padding: 20px; border-radius: var(--radius-md); background: var(--bg-card); border: 1px solid var(--border-subtle); transition: 0.25s; }
.news-card:hover { border-color: var(--border-glow); }
.news-card h6 { font-weight: 700; margin: 10px 0 6px; }
.news-card .date { font-size: 0.8rem; color: var(--text-accent); }

@media (max-width: 992px) {
  .nav-links { display: none; width: 100%; flex-direction: column; gap: 1rem; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border-subtle); }
  .nav-links.open { display: flex; }
  .mobile-menu-toggle { display: block; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 576px) {
  .hero-content h1 { font-size: 2rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .feature-row { gap: 30px; }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}