/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --dark-3: #334155;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-600: #475569;
            --white: #ffffff;
            --text-light: #f1f5f9;
            --text-muted: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --shadow-glow: 0 0 40px rgba(37,99,235,0.25);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Segoe UI','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--dark);background:var(--white);-webkit-font-smoothing:antialiased}
        img{max-width:100%;height:auto;display:block}
        a{color:inherit;text-decoration:none;transition:color var(--transition)}
        button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none}
        button{cursor:pointer;background:none}
        ul,ol{list-style:none}
        h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700}
        h1{font-size:clamp(2rem,5vw,3.6rem)}
        h2{font-size:clamp(1.6rem,3.5vw,2.6rem)}
        h3{font-size:clamp(1.2rem,2.5vw,1.6rem)}
        p{margin-bottom:0.8em}
        .container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px}
        .section{padding:clamp(50px,8vw,100px) 0}
        .section-title{text-align:center;margin-bottom:12px;font-weight:800;letter-spacing:-0.02em}
        .section-sub{text-align:center;color:var(--gray-500);font-size:1.1rem;max-width:640px;margin:0 auto 48px;line-height:1.6}
        .text-center{text-align:center}

        /* ===== Buttons ===== */
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;transition:all var(--transition);position:relative;overflow:hidden;cursor:pointer}
        .btn-primary{background:var(--accent);color:var(--dark);box-shadow:0 4px 20px rgba(245,158,11,0.35)}
        .btn-primary:hover{background:var(--accent-dark);box-shadow:0 6px 30px rgba(245,158,11,0.45);transform:translateY(-2px)}
        .btn-primary:active{transform:translateY(0)}
        .btn-outline{border:2px solid var(--white);color:var(--white);background:transparent}
        .btn-outline:hover{background:var(--white);color:var(--dark);transform:translateY(-2px)}
        .btn-lg{padding:18px 44px;font-size:1.1rem}
        .btn-sm{padding:8px 20px;font-size:0.9rem}
        .btn .fa-solid,.btn .fa-regular,.btn .fas,.btn .far{font-size:1.05em}

        /* ===== Badge / Tag ===== */
        .badge{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:50px;font-size:0.8rem;font-weight:600;background:var(--primary-bg);color:var(--primary)}
        .badge-hot{background:#fef2f2;color:#dc2626}
        .badge-new{background:#f0fdf4;color:#16a34a}
        .badge-accent{background:rgba(245,158,11,0.15);color:var(--accent-dark)}
        .badge-white{background:rgba(255,255,255,0.2);color:var(--white)}

        /* ===== Header / Nav ===== */
        .header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-height);background:rgba(15,23,42,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.06);transition:background var(--transition)}
        .header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
        .logo{display:flex;align-items:center;gap:10px;font-size:1.4rem;font-weight:800;color:var(--white);letter-spacing:-0.02em}
        .logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--white);font-weight:900}
        .logo span{background:linear-gradient(135deg,var(--white),var(--gray-300));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
        .nav{display:flex;align-items:center;gap:32px}
        .nav a{color:var(--gray-300);font-weight:500;font-size:0.95rem;position:relative;padding:4px 0;transition:color var(--transition)}
        .nav a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--accent);transition:width var(--transition);border-radius:2px}
        .nav a:hover,.nav a.active{color:var(--white)}
        .nav a.active::after{width:100%}
        .nav-cta .btn{padding:10px 24px;font-size:0.9rem}
        .nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
        .nav-toggle span{display:block;width:26px;height:2.5px;background:var(--white);border-radius:4px;transition:all var(--transition)}
        .nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
        .nav-toggle.active span:nth-child(2){opacity:0}
        .nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

        /* ===== Mobile Nav ===== */
        .mobile-menu{display:none;position:fixed;top:var(--header-height);left:0;right:0;background:rgba(15,23,42,0.98);backdrop-filter:blur(20px);padding:24px 20px;border-bottom:1px solid rgba(255,255,255,0.06);z-index:999;flex-direction:column;gap:16px;transform:translateY(-10px);opacity:0;transition:all var(--transition);pointer-events:none}
        .mobile-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
        .mobile-menu a{color:var(--gray-300);font-size:1.1rem;font-weight:500;padding:10px 0;border-bottom:1px solid rgba(255,255,255,0.05)}
        .mobile-menu a.active{color:var(--accent)}
        .mobile-menu .btn{margin-top:8px;width:100%;justify-content:center}

        /* ===== Hero ===== */
        .hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:var(--header-height);background:var(--dark);overflow:hidden}
        .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;opacity:0.4;transform:scale(1.05);animation:heroZoom 20s ease-in-out infinite alternate}
        @keyframes heroZoom{0%{transform:scale(1.05)}100%{transform:scale(1.15)}}
        .hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,0.88) 30%,rgba(37,99,235,0.25) 70%,rgba(245,158,11,0.10) 100%)}
        .hero .container{position:relative;z-index:2;padding:80px 20px 60px}
        .hero-content{max-width:720px}
        .hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border-radius:50px;background:rgba(255,255,255,0.10);backdrop-filter:blur(10px);color:var(--white);font-size:0.9rem;font-weight:500;margin-bottom:24px;border:1px solid rgba(255,255,255,0.08)}
        .hero-badge .pulse-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;animation:pulse 1.8s ease-in-out infinite}
        @keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.8)}}
        .hero h1{color:var(--white);font-size:clamp(2.2rem,5.5vw,4rem);font-weight:900;letter-spacing:-0.03em;line-height:1.15;margin-bottom:20px}
        .hero h1 .highlight{background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
        .hero p{color:var(--gray-300);font-size:clamp(1rem,2vw,1.2rem);line-height:1.7;max-width:560px;margin-bottom:36px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
        .hero-stats{display:flex;flex-wrap:wrap;gap:24px 48px;margin-top:48px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.08)}
        .hero-stat{display:flex;flex-direction:column;gap:2px}
        .hero-stat-num{font-size:1.6rem;font-weight:800;color:var(--white);line-height:1.2}
        .hero-stat-num .num-count{background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
        .hero-stat-label{font-size:0.85rem;color:var(--gray-400)}
        .hero-live{display:flex;align-items:center;gap:10px;margin-top:16px;color:var(--gray-400);font-size:0.9rem}
        .hero-live .live-dot{width:10px;height:10px;border-radius:50%;background:#22c55e;position:relative}
        .hero-live .live-dot::after{content:'';position:absolute;inset:-4px;border-radius:50%;background:rgba(34,197,94,0.3);animation:pulse 1.8s ease-in-out infinite}

        /* ===== Countdown ===== */
        .countdown-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px;padding:14px 24px;background:rgba(245,158,11,0.10);border-radius:var(--radius-md);border:1px solid rgba(245,158,11,0.15)}
        .countdown-bar .label{color:var(--accent-light);font-weight:600;font-size:0.95rem;display:flex;align-items:center;gap:8px}
        .countdown-bar .label .fa-solid{color:var(--accent)}
        .countdown-items{display:flex;gap:8px;font-weight:700;font-size:1.3rem;color:var(--white)}
        .countdown-items .cd-item{background:rgba(0,0,0,0.35);padding:6px 14px;border-radius:var(--radius-sm);min-width:48px;text-align:center;backdrop-filter:blur(4px)}
        .countdown-items .cd-item .cd-num{font-size:1.4rem;line-height:1.2}
        .countdown-items .cd-item .cd-label{font-size:0.6rem;font-weight:400;color:var(--gray-400);text-transform:uppercase;display:block;margin-top:2px}

        /* ===== Features ===== */
        .features{background:var(--white)}
        .features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
        .feature-card{background:var(--gray-50);border-radius:var(--radius-md);padding:36px 28px;border:1px solid var(--gray-100);transition:all var(--transition);position:relative;overflow:hidden}
        .feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity var(--transition)}
        .feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
        .feature-card:hover::before{opacity:1}
        .feature-icon{width:56px;height:56px;border-radius:var(--radius-sm);background:var(--primary-bg);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px;transition:all var(--transition)}
        .feature-card:hover .feature-icon{background:var(--primary);color:var(--white);transform:scale(1.05)}
        .feature-card h3{font-size:1.2rem;font-weight:700;margin-bottom:10px}
        .feature-card p{color:var(--gray-500);font-size:0.95rem;line-height:1.6}

        /* ===== Games ===== */
        .games{background:var(--gray-50)}
        .games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
        .game-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition);border:1px solid var(--gray-100)}
        .game-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
        .game-card-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--gray-200)}
        .game-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
        .game-card:hover .game-card-img img{transform:scale(1.08)}
        .game-card-img .game-badge{position:absolute;top:12px;left:12px;z-index:2}
        .game-card-body{padding:18px 20px 22px}
        .game-card-body h4{font-size:1.05rem;font-weight:700;margin-bottom:6px}
        .game-card-body p{color:var(--gray-500);font-size:0.88rem;line-height:1.5;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .game-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:0.82rem;color:var(--gray-400)}
        .game-card-meta .rating{color:var(--accent);font-weight:600}

        /* ===== News / CMS ===== */
        .news{background:var(--white)}
        .news-list{display:flex;flex-direction:column;gap:16px;max-width:860px;margin:0 auto}
        .news-item{display:flex;align-items:flex-start;gap:18px;padding:20px 24px;background:var(--gray-50);border-radius:var(--radius-md);border:1px solid var(--gray-100);transition:all var(--transition)}
        .news-item:hover{transform:translateX(6px);box-shadow:var(--shadow-sm);border-color:var(--primary-light)}
        .news-item .news-icon{width:40px;height:40px;flex-shrink:0;border-radius:var(--radius-sm);background:var(--primary-bg);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1rem}
        .news-item .news-content{flex:1;min-width:0}
        .news-item .news-content h4{font-size:1rem;font-weight:600;margin-bottom:4px;transition:color var(--transition)}
        .news-item:hover .news-content h4{color:var(--primary)}
        .news-item .news-content p{color:var(--gray-500);font-size:0.9rem;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
        .news-item .news-meta{display:flex;align-items:center;gap:12px;margin-top:8px;font-size:0.8rem;color:var(--gray-400)}
        .news-item .news-meta .tag{background:var(--gray-200);padding:2px 10px;border-radius:50px;font-size:0.75rem;font-weight:500;color:var(--gray-600)}
        .news-empty{text-align:center;padding:48px 20px;color:var(--gray-400);font-size:1.05rem;background:var(--gray-50);border-radius:var(--radius-md)}

        /* ===== Data / Stats ===== */
        .data-section{background:var(--dark);position:relative;overflow:hidden}
        .data-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat;opacity:0.08;transform:scale(1.05)}
        .data-section .container{position:relative;z-index:2}
        .data-section .section-title{color:var(--white)}
        .data-section .section-sub{color:var(--gray-400)}
        .data-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:32px;text-align:center}
        .data-item{padding:24px 16px;background:rgba(255,255,255,0.04);border-radius:var(--radius-md);border:1px solid rgba(255,255,255,0.06);transition:all var(--transition)}
        .data-item:hover{background:rgba(255,255,255,0.08);transform:translateY(-4px)}
        .data-item .data-num{font-size:2.4rem;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2;margin-bottom:6px}
        .data-item .data-label{color:var(--gray-400);font-size:0.95rem;font-weight:500}

        /* ===== Featured ===== */
        .featured{background:var(--white)}
        .featured-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:32px;align-items:center}
        .featured-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);aspect-ratio:4/3}
        .featured-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease}
        .featured-img:hover img{transform:scale(1.04)}
        .featured-img .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,0.2);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--white);transition:all var(--transition);border:2px solid rgba(255,255,255,0.3)}
        .featured-img:hover .play-btn{background:var(--accent);border-color:var(--accent);transform:translate(-50%,-50%) scale(1.08)}
        .featured-text h3{font-size:1.8rem;font-weight:800;margin-bottom:16px;letter-spacing:-0.02em}
        .featured-text p{color:var(--gray-500);font-size:1.05rem;line-height:1.7;margin-bottom:24px}
        .featured-text .featured-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
        .featured-text .featured-list li{display:flex;align-items:center;gap:12px;color:var(--gray-600);font-size:0.98rem}
        .featured-text .featured-list li .fa-solid,.featured-text .featured-list li .fas{color:var(--primary);font-size:1.1rem;width:24px;text-align:center}

        /* ===== Testimonials ===== */
        .testimonials{background:var(--gray-50)}
        .test-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
        .test-card{background:var(--white);border-radius:var(--radius-md);padding:28px 24px;box-shadow:var(--shadow-sm);border:1px solid var(--gray-100);transition:all var(--transition)}
        .test-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}
        .test-card .stars{color:var(--accent);font-size:1rem;margin-bottom:12px;letter-spacing:2px}
        .test-card blockquote{color:var(--gray-600);font-size:0.95rem;line-height:1.7;font-style:italic;margin-bottom:16px}
        .test-card .test-author{display:flex;align-items:center;gap:12px;padding-top:12px;border-top:1px solid var(--gray-100)}
        .test-card .test-author .avatar{width:40px;height:40px;border-radius:50%;background:var(--primary-bg);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}
        .test-card .test-author .name{font-weight:600;font-size:0.9rem}
        .test-card .test-author .role{font-size:0.8rem;color:var(--gray-400)}

        /* ===== FAQ ===== */
        .faq{background:var(--white)}
        .faq-list{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
        .faq-item{border:1px solid var(--gray-200);border-radius:var(--radius-md);overflow:hidden;transition:all var(--transition)}
        .faq-item.active{border-color:var(--primary-light);box-shadow:var(--shadow-sm)}
        .faq-question{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;font-weight:600;font-size:1rem;cursor:pointer;background:var(--gray-50);transition:background var(--transition);user-select:none}
        .faq-question:hover{background:var(--gray-100)}
        .faq-item.active .faq-question{background:var(--primary-bg);color:var(--primary)}
        .faq-question .fa-solid,.faq-question .fas{transition:transform var(--transition);font-size:0.85rem;color:var(--gray-400)}
        .faq-item.active .faq-question .fa-solid,.faq-item.active .faq-question .fas{transform:rotate(180deg);color:var(--primary)}
        .faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all var(--transition);color:var(--gray-500);line-height:1.7;font-size:0.95rem}
        .faq-item.active .faq-answer{padding:18px 24px 24px;max-height:400px}

        /* ===== CTA ===== */
        .cta{background:var(--dark);position:relative;overflow:hidden}
        .cta::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center center/cover no-repeat;opacity:0.10;transform:scale(1.05)}
        .cta .container{position:relative;z-index:2;text-align:center;padding:80px 20px}
        .cta h2{color:var(--white);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;margin-bottom:16px;letter-spacing:-0.02em}
        .cta p{color:var(--gray-400);font-size:1.1rem;max-width:520px;margin:0 auto 32px;line-height:1.7}
        .cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

        /* ===== Footer ===== */
        .footer{background:var(--dark-2);color:var(--gray-300);padding:48px 0 0;border-top:1px solid rgba(255,255,255,0.04)}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.05)}
        .footer-brand .logo{margin-bottom:14px}
        .footer-brand p{font-size:0.9rem;color:var(--gray-400);max-width:320px;line-height:1.7}
        .footer h4{color:var(--white);font-size:1rem;font-weight:700;margin-bottom:16px}
        .footer ul{display:flex;flex-direction:column;gap:10px}
        .footer ul a{color:var(--gray-400);font-size:0.9rem;transition:color var(--transition);display:flex;align-items:center;gap:6px}
        .footer ul a:hover{color:var(--accent)}
        .footer ul a .fa-solid,.footer ul a .fas{font-size:0.7rem;color:var(--gray-500)}
        .footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:24px 0;font-size:0.85rem;color:var(--gray-500);gap:12px}
        .footer-bottom a{color:var(--gray-400)}
        .footer-bottom a:hover{color:var(--accent)}
        .footer-social{display:flex;gap:12px}
        .footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,0.06);display:flex;align-items:center;justify-content:center;color:var(--gray-400);transition:all var(--transition);font-size:1rem}
        .footer-social a:hover{background:var(--primary);color:var(--white);transform:translateY(-3px)}

        /* ===== Responsive ===== */
        @media(max-width:1024px){
            .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
            .footer-brand{grid-column:1/-1}
        }
        @media(max-width:768px){
            .nav{display:none}
            .nav-toggle{display:flex}
            .mobile-menu{display:flex}
            .hero-content{text-align:center}
            .hero-actions{justify-content:center}
            .hero-stats{justify-content:center}
            .hero-stat{text-align:center}
            .countdown-bar{justify-content:center}
            .games-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
            .featured-grid{grid-template-columns:1fr}
            .featured-text{order:2}
            .featured-img{order:1}
            .test-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;text-align:center}
            .footer-brand p{margin:0 auto}
            .footer ul{align-items:center}
            .footer-bottom{flex-direction:column;text-align:center}
        }
        @media(max-width:520px){
            .section{padding:40px 0}
            .hero{padding-top:var(--header-height)}
            .hero .container{padding:40px 16px 40px}
            .hero h1{font-size:1.8rem}
            .hero-stats{gap:16px 24px}
            .hero-stat-num{font-size:1.3rem}
            .games-grid{grid-template-columns:repeat(2,1fr);gap:12px}
            .game-card-body{padding:12px 14px 16px}
            .game-card-body h4{font-size:0.95rem}
            .news-item{padding:14px 16px;flex-direction:column;gap:10px}
            .news-item .news-icon{display:none}
            .countdown-items .cd-item{padding:4px 10px;min-width:36px}
            .countdown-items .cd-item .cd-num{font-size:1.1rem}
            .data-grid{grid-template-columns:repeat(2,1fr);gap:16px}
            .data-item .data-num{font-size:1.8rem}
            .btn-lg{padding:14px 32px;font-size:1rem}
            .cta .container{padding:50px 16px}
            .faq-question{padding:14px 16px;font-size:0.95rem}
            .faq-item.active .faq-answer{padding:14px 16px 18px}
            .featured-grid{grid-template-columns:1fr;gap:24px}
            .featured-text h3{font-size:1.4rem}
        }

        /* ===== Utility ===== */
        .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
        .scroll-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:var(--shadow-md);z-index:999;transition:all var(--transition);opacity:0;transform:translateY(20px);pointer-events:none}
        .scroll-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}
        .scroll-top:hover{background:var(--primary-dark);transform:translateY(-4px)}

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #ff6b35;
            --primary-dark: #e55a2b;
            --primary-light: #ff8a5c;
            --primary-alpha: rgba(255, 107, 53, 0.12);
            --secondary: #ffc107;
            --secondary-light: #ffd54f;
            --accent: #00bcd4;
            --bg-dark: #0d0d1a;
            --bg-darker: #080812;
            --bg-light: #f8f9fc;
            --bg-card: #ffffff;
            --bg-card-alt: #f0f2f8;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8888aa;
            --text-white: #ffffff;
            --border-color: #e8e8f0;
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
            --shadow-glow: 0 0 30px rgba(255, 107, 53, 0.20);
            --transition: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.15rem, 2.2vw, 1.6rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 0.8rem;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
            margin-bottom: 16px;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto;
            color: var(--text-light);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn i,
        .btn .icon {
            font-size: 1.1em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-light {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(4px);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.30);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
            border-radius: var(--radius-md);
        }
        .btn-block {
            width: 100%;
        }
        .btn:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 3px;
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--primary-alpha);
            color: var(--primary);
        }
        .badge-hot {
            background: #fff0e6;
            color: #e55a2b;
        }
        .badge-new {
            background: #e0f7fa;
            color: #00838f;
        }
        .badge-top {
            background: #fff8e1;
            color: #f57f17;
        }
        .badge-white {
            background: rgba(255, 255, 255, 0.20);
            color: #fff;
        }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 13, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-h);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            text-decoration: none !important;
            letter-spacing: -0.5px;
        }
        .logo:hover {
            color: var(--primary-light);
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.35);
        }
        .logo span:last-child {
            color: #fff;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            color: rgba(255, 255, 255, 0.75);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav a.active {
            color: #fff;
            background: rgba(255, 107, 53, 0.20);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .nav-cta .btn {
            font-size: 0.85rem;
            padding: 8px 20px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px 4px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 768px) {
            .nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(13, 13, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 6px;
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-light);
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav a.active::after {
                display: none;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 10px;
                width: 100%;
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
                padding: 12px;
            }
            .nav-toggle {
                display: flex;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 80px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center center;
            background-attachment: fixed;
            position: relative;
            isolation: isolate;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.88) 0%, rgba(13, 13, 26, 0.70) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            color: #fff;
            font-size: clamp(2rem, 5vw, 3.4rem);
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .page-banner p {
            color: rgba(255, 255, 255, 0.80);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 24px;
        }
        .page-banner .badge-group {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.60);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb span {
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== Category Tabs ===== */
        .category-tabs {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: var(--header-h);
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .category-tabs .container {
            display: flex;
            gap: 4px;
            overflow-x: auto;
            padding: 12px 24px;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .category-tabs .container::-webkit-scrollbar {
            display: none;
        }
        .category-tabs .tab {
            flex-shrink: 0;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.88rem;
            color: var(--text-secondary);
            background: transparent;
            transition: var(--transition);
            border: 1.5px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }
        .category-tabs .tab:hover {
            background: var(--primary-alpha);
            color: var(--primary);
        }
        .category-tabs .tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.30);
        }
        .category-tabs .tab:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Game Grid ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 28px;
        }
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .game-card .card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .game-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .card-img img {
            transform: scale(1.06);
        }
        .game-card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            font-size: 0.72rem;
            padding: 3px 12px;
        }
        .game-card .card-img .overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.25);
            opacity: 0;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .game-card:hover .card-img .overlay {
            opacity: 1;
        }
        .game-card .card-img .overlay .btn {
            transform: translateY(12px);
            transition: var(--transition);
        }
        .game-card:hover .card-img .overlay .btn {
            transform: translateY(0);
        }
        .game-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-card .card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .game-card .card-body h3 a {
            color: var(--text-primary);
        }
        .game-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .game-card .card-body .meta {
            display: flex;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .game-card .card-body .meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .game-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card .card-body .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }
        .game-card .card-body .tags span {
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.72rem;
            background: var(--bg-card-alt);
            color: var(--text-secondary);
            font-weight: 500;
        }
        .game-card .card-body .card-actions {
            display: flex;
            gap: 10px;
            margin-top: auto;
        }
        .game-card .card-body .card-actions .btn {
            flex: 1;
            padding: 8px 12px;
            font-size: 0.82rem;
        }

        /* ===== Feature Section ===== */
        .feature-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
        }
        .feature-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.92) 0%, rgba(13, 13, 26, 0.80) 100%);
            z-index: 1;
        }
        .feature-section .container {
            position: relative;
            z-index: 2;
        }
        .feature-section .section-title h2 {
            color: #fff;
        }
        .feature-section .section-title h2::after {
            background: var(--secondary);
        }
        .feature-section .section-title p {
            color: rgba(255, 255, 255, 0.70);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .feature-item {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 107, 53, 0.30);
        }
        .feature-item .icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .feature-item h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .feature-item p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.88) 0%, rgba(13, 13, 26, 0.92) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: left;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-darker);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
            border-top: 1px solid var(--border-light);
        }
        .footer .logo {
            margin-bottom: 16px;
        }
        .footer .logo span:last-child {
            color: #fff;
        }
        .footer p {
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.92rem;
            max-width: 360px;
            margin-bottom: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-light);
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-grid h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
        }
        .footer-grid ul li {
            margin-bottom: 10px;
        }
        .footer-grid ul li a {
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-grid ul li a i {
            font-size: 0.65rem;
            color: var(--primary);
        }
        .footer-grid ul li a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.65);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-grid .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .page-banner {
                padding: 110px 0 56px;
            }
            .game-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: 20px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .category-tabs .container {
                padding: 10px 16px;
            }
            .category-tabs .tab {
                padding: 6px 16px;
                font-size: 0.82rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .cta-section .btn-group .btn {
                width: 100%;
            }
            .game-card .card-body .card-actions {
                flex-direction: column;
            }
        }

        /* ===== Scroll To Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-lg);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .scroll-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .scroll-top:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 3px;
        }

        /* ===== Loading Skeleton ===== */
        .loading-spinner {
            display: flex;
            justify-content: center;
            padding: 40px 0;
        }
        .loading-spinner .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid var(--border-color);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* ===== Accessibility ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        /* focus-visible for all interactive */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

/* roulang page: article */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8A5C;
            --secondary: #FFD700;
            --accent: #FF4757;
            --dark: #1a1a2e;
            --dark-light: #16213e;
            --dark-card: #0f3460;
            --white: #ffffff;
            --bg-light: #f8f9fa;
            --bg-gray: #f0f2f5;
            --text: #2d3436;
            --text-light: #636e72;
            --text-muted: #b2bec3;
            --border: #e1e8ed;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 20px;
            --radius-full: 50px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Inter', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--dark); }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn i { font-size: 16px; }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            box-shadow: 0 4px 15px rgba(255,107,53,0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255,107,53,0.45);
            color: var(--white);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(255,107,53,0.3); }
        .btn-secondary {
            background: var(--white);
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }
        .btn-sm { padding: 8px 20px; font-size: 13px; }
        .btn-lg { padding: 16px 36px; font-size: 17px; }

        /* ===== 标签 / 徽章 ===== */
        .tag {
            display: inline-block;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-full);
            background: var(--bg-light);
            color: var(--text-light);
            transition: var(--transition);
        }
        .tag-primary {
            background: rgba(255,107,53,0.12);
            color: var(--primary);
        }
        .tag-primary:hover { background: var(--primary); color: var(--white); }
        .tag-gold {
            background: rgba(255,215,0,0.2);
            color: #b8860b;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-full);
            background: var(--accent);
            color: var(--white);
        }
        .badge-hot { background: var(--accent); }
        .badge-new { background: #2ecc71; }

        /* ===== 头部导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: var(--dark);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--white);
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
        }
        .logo:hover { color: var(--secondary); }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            font-size: 20px;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(255,107,53,0.4);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            border-radius: var(--radius-full);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--white); background: rgba(255,255,255,0.08); }
        .nav a.active {
            color: var(--white);
            background: rgba(255,107,53,0.25);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-cta { margin-left: 12px; }
        .nav-cta .btn { padding: 8px 22px; font-size: 14px; }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--white);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        @media (max-width: 768px) {
            .nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 4px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: 0 10px 30px rgba(0,0,0,0.4);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a { width: 100%; padding: 12px 16px; font-size: 16px; }
            .nav a.active::after { display: none; }
            .nav a.active { background: rgba(255,107,53,0.2); }
            .nav-cta { margin-left: 0; margin-top: 12px; width: 100%; }
            .nav-cta .btn { width: 100%; justify-content: center; }
            .nav-toggle { display: flex; }
        }

        /* ===== Hero / 文章头图 ===== */
        .article-hero {
            position: relative;
            padding: 120px 0 80px;
            margin-top: var(--header-h);
            background: var(--dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.92) 0%, rgba(15,52,96,0.8) 50%, rgba(26,26,46,0.7) 100%);
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }
        .article-hero-meta .tag {
            font-size: 13px;
            padding: 5px 18px;
            background: rgba(255,107,53,0.2);
            color: var(--secondary);
            border: 1px solid rgba(255,215,0,0.2);
        }
        .article-hero-meta .date {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero-meta .views {
            font-size: 14px;
            color: rgba(255,255,255,0.5);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }
        .article-hero h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--white);
            line-height: 1.25;
            max-width: 900px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .article-hero .desc {
            font-size: 17px;
            color: rgba(255,255,255,0.75);
            margin-top: 16px;
            max-width: 700px;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .article-hero { padding: 100px 0 50px; }
            .article-hero h1 { font-size: 26px; }
            .article-hero .desc { font-size: 15px; }
            .article-hero-meta .views { margin-left: 0; width: 100%; }
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 50px 0 60px;
            background: var(--white);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body {
            min-width: 0;
        }
        .article-body-content {
            font-size: 16.5px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body-content h2 {
            font-size: 24px;
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
        }
        .article-body-content h3 {
            font-size: 20px;
            margin: 32px 0 12px;
        }
        .article-body-content p {
            margin-bottom: 20px;
        }
        .article-body-content ul, .article-body-content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body-content ul li { list-style: disc; margin-bottom: 6px; }
        .article-body-content ol li { list-style: decimal; margin-bottom: 6px; }
        .article-body-content blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--bg-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body-content img {
            margin: 24px auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-body-content a { color: var(--primary); text-decoration: underline; }
        .article-body-content a:hover { color: var(--primary-dark); }
        .article-body-content code {
            background: var(--bg-gray);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            font-family: 'Courier New', monospace;
        }
        .article-body-content pre {
            background: var(--dark);
            color: #e8e8e8;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.6;
        }

        /* ===== 文章侧栏 ===== */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-h) + 30px);
            align-self: start;
        }
        .sidebar-card {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 24px;
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 17px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-article-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-article-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-article-item img {
            width: 70px;
            height: 52px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-article-item .info { flex: 1; min-width: 0; }
        .sidebar-article-item .info a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-article-item .info a:hover { color: var(--primary); }
        .sidebar-article-item .info .meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: none; }
        }

        /* ===== 文章标签与分享 ===== */
        .article-tags-share {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-light);
        }
        .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-gray);
            color: var(--text-light);
            font-size: 16px;
            transition: var(--transition);
        }
        .article-share a:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }

        /* ===== 文章导航（上下篇） ===== */
        .article-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }
        .article-nav a {
            padding: 20px 24px;
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-nav a:hover {
            background: var(--white);
            box-shadow: var(--shadow);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .article-nav .label {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 6px;
        }
        .article-nav .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-nav a:hover .title { color: var(--primary); }
        .article-nav .next { text-align: right; }
        .article-nav .next .label { justify-content: flex-end; }
        @media (max-width: 600px) {
            .article-nav { grid-template-columns: 1fr; }
            .article-nav .next { text-align: left; }
            .article-nav .next .label { justify-content: flex-start; }
        }

        /* ===== 内容未找到 ===== */
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 64px; color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found h2 { font-size: 28px; color: var(--text); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-light); margin-bottom: 24px; }
        .article-not-found .btn { margin-top: 8px; }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-light);
        }
        .related-section .section-title {
            text-align: center;
            font-size: 28px;
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 40px;
            font-size: 16px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-card .thumb {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .related-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .related-card:hover .thumb img { transform: scale(1.05); }
        .related-card .thumb .badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .related-card .body {
            padding: 18px 20px 20px;
        }
        .related-card .body .cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .body h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .body h4 a { color: var(--text); }
        .related-card .body h4 a:hover { color: var(--primary); }
        .related-card .body p {
            font-size: 14px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .related-card .body .meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        @media (max-width: 1024px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 600px) { .related-grid { grid-template-columns: 1fr; } }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 70px 0;
            background: var(--dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.92), rgba(15,52,96,0.85));
        }
        .cta-section .container { position: relative; z-index: 1; text-align: center; }
        .cta-section h2 {
            font-size: 32px;
            color: var(--white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255,255,255,0.7);
            max-width: 600px;
            margin: 0 auto 30px;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-section .btn-primary {
            background: linear-gradient(135deg, var(--secondary), #f0a500);
            color: var(--dark);
            box-shadow: 0 4px 20px rgba(255,215,0,0.4);
        }
        .cta-section .btn-primary:hover { box-shadow: 0 8px 30px rgba(255,215,0,0.55); transform: translateY(-3px); }
        .cta-section .btn-secondary {
            border-color: rgba(255,255,255,0.3);
            color: var(--white);
        }
        .cta-section .btn-secondary:hover { background: var(--white); color: var(--dark); border-color: var(--white); }
        @media (max-width: 768px) {
            .cta-section h2 { font-size: 24px; }
            .cta-section p { font-size: 15px; }
        }

        /* ===== FAQ 区块 ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--white);
        }
        .faq-section .section-title {
            text-align: center;
            font-size: 28px;
            margin-bottom: 8px;
        }
        .faq-section .section-sub {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 40px;
            font-size: 16px;
        }
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: var(--bg-light); }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 14px; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            background: var(--bg-light);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 24px 20px;
        }
        .faq-answer p { font-size: 15px; color: var(--text-light); line-height: 1.7; }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer .logo { color: var(--white); margin-bottom: 16px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 12px; color: rgba(255,255,255,0.55); max-width: 320px; }
        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .footer ul li { margin-bottom: 10px; }
        .footer ul li a {
            color: rgba(255,255,255,0.55);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer ul li a i { font-size: 11px; }
        .footer ul li a:hover { color: var(--primary); transform: translateX(4px); }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.5);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }

        @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; } }
        @media (max-width: 600px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 通用辅助 ===== */
        .section-title { font-size: 28px; font-weight: 800; }
        .section-sub { color: var(--text-light); font-size: 16px; }
        .text-center { text-align: center; }
        .mt-20 { margin-top: 20px; }
        .mb-20 { margin-bottom: 20px; }

        /* ===== 页面内锚点偏移 ===== */
        #faq, #download { scroll-margin-top: calc(var(--header-h) + 20px); }

        /* ===== 返回顶部 ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(255,107,53,0.4);
            opacity: 0;
            transform: translateY(20px);
            transition: var(--transition);
            pointer-events: none;
        }
        .back-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
        .back-top:hover { background: var(--primary-dark); transform: translateY(-4px); color: var(--white); }

        @media (max-width: 600px) {
            .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 16px; }
        }