/* roulang page: index */
:root {
  --primary: #ff6a00;
  --primary-dark: #e05a00;
  --primary-light: #ff8c33;
  --secondary: #1a1a2e;
  --accent: #16213e;
  --bg-dark: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-light: #f8f9fa;
  --text-primary: #ffffff;
  --text-secondary: #b0b0c0;
  --text-dark: #1a1a2e;
  --text-muted: #6c757d;
  --border-color: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-hover: 0 12px 40px rgba(255,106,0,0.25);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-sans: 'Inter','Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-sans);background:var(--bg-dark);color:var(--text-primary);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-light)}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;transition:var(--transition)}
button{cursor:pointer}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 16px}}

/* Header & Nav */
header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,15,26,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);height:var(--header-height)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--text-primary);letter-spacing:-0.5px}
.logo i{color:var(--primary);font-size:1.6rem}
.logo span{background:linear-gradient(135deg,var(--primary),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{display:flex;align-items:center;gap:6px;padding:8px 18px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:0.9rem;font-weight:500;transition:var(--transition);position:relative}
.nav-links a i{font-size:0.85rem}
.nav-links a:hover,.nav-links a.active{color:var(--text-primary);background:rgba(255,106,0,0.12)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--primary);border-radius:2px}
.header-cta{display:flex;align-items:center;gap:12px}
.header-cta .btn-ghost{color:var(--text-secondary);padding:8px 16px;border-radius:var(--radius-sm);font-size:0.9rem;font-weight:500;background:transparent;border:1px solid var(--border-color)}
.header-cta .btn-ghost:hover{color:var(--text-primary);border-color:var(--primary);background:rgba(255,106,0,0.08)}
.header-cta .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:8px 22px;border-radius:var(--radius-sm);font-size:0.9rem;font-weight:600;box-shadow:0 4px 16px rgba(255,106,0,0.3)}
.header-cta .btn-primary:hover{box-shadow:0 6px 24px rgba(255,106,0,0.45);transform:translateY(-1px)}
.mobile-toggle{display:none;background:transparent;color:var(--text-primary);font-size:1.5rem;padding:4px 8px}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:rgba(15,15,26,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--border-color)}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:12px 16px}
  .mobile-toggle{display:block}
  .header-cta .btn-ghost{display:none}
}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 24px 80px;background:linear-gradient(135deg,rgba(15,15,26,0.92),rgba(26,26,46,0.88)),url('/assets/images/backpic/back-1.png') center center/cover no-repeat;overflow:hidden}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 30% 50%,rgba(255,106,0,0.15),transparent 60%),radial-gradient(ellipse at 70% 50%,rgba(255,106,0,0.08),transparent 50%)}
.hero-content{position:relative;z-index:2;max-width:820px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border-radius:50px;background:rgba(255,106,0,0.15);border:1px solid rgba(255,106,0,0.25);color:var(--primary-light);font-size:0.85rem;font-weight:500;margin-bottom:24px;backdrop-filter:blur(8px)}
.hero-badge i{font-size:0.75rem}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:900;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}
.hero h1 span{background:linear-gradient(135deg,var(--primary),#ffb347);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:clamp(1rem,2vw,1.2rem);color:var(--text-secondary);max-width:640px;margin:0 auto 36px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.hero-actions .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:14px 36px;border-radius:var(--radius-sm);font-size:1.05rem;font-weight:700;box-shadow:0 8px 28px rgba(255,106,0,0.35);display:inline-flex;align-items:center;gap:10px}
.hero-actions .btn-primary:hover{box-shadow:0 12px 36px rgba(255,106,0,0.5);transform:translateY(-2px)}
.hero-actions .btn-secondary{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);color:var(--text-primary);padding:14px 36px;border-radius:var(--radius-sm);font-size:1.05rem;font-weight:600;display:inline-flex;align-items:center;gap:10px;backdrop-filter:blur(8px)}
.hero-actions .btn-secondary:hover{background:rgba(255,255,255,0.12);border-color:rgba(255,255,255,0.2)}
.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:40px;margin-top:56px;padding-top:40px;border-top:1px solid rgba(255,255,255,0.06)}
.hero-stat{text-align:center}
.hero-stat .num{font-size:1.8rem;font-weight:800;color:var(--text-primary);line-height:1.2}
.hero-stat .num i{color:var(--primary);margin-right:4px}
.hero-stat .label{font-size:0.85rem;color:var(--text-secondary);margin-top:4px}
@media(max-width:768px){
  .hero{padding:100px 16px 60px;min-height:auto}
  .hero-stats{gap:24px;padding-top:28px;margin-top:36px}
  .hero-stat .num{font-size:1.4rem}
}

/* Section Base */
section{padding:80px 0}
.section-header{text-align:center;margin-bottom:52px}
.section-header .subtitle{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:50px;background:rgba(255,106,0,0.1);color:var(--primary-light);font-size:0.8rem;font-weight:500;margin-bottom:12px;border:1px solid rgba(255,106,0,0.15)}
.section-header h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;color:var(--text-primary);letter-spacing:-0.5px}
.section-header p{color:var(--text-secondary);max-width:560px;margin:12px auto 0;font-size:1rem}
@media(max-width:768px){section{padding:56px 0}.section-header{margin-bottom:36px}}

/* Features */
.features{background:var(--bg-card);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:rgba(255,255,255,0.03);border:1px solid var(--border-color);border-radius:var(--radius);padding:32px 24px;text-align:center;transition:var(--transition)}
.feature-card:hover{background:rgba(255,106,0,0.06);border-color:rgba(255,106,0,0.2);transform:translateY(-4px);box-shadow:var(--shadow)}
.feature-card .icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,rgba(255,106,0,0.2),rgba(255,106,0,0.05));display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem;color:var(--primary)}
.feature-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.feature-card p{font-size:0.88rem;color:var(--text-secondary);line-height:1.6}
@media(max-width:1024px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.features-grid{grid-template-columns:1fr}}

/* Hot Games */
.hot-games{background:var(--bg-dark)}
.games-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.game-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;transition:var(--transition);position:relative}
.game-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,0,0.3)}
.game-card .cover{height:200px;overflow:hidden;position:relative}
.game-card .cover img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.game-card:hover .cover img{transform:scale(1.05)}
.game-card .cover .badge{position:absolute;top:12px;left:12px;padding:4px 12px;border-radius:50px;background:var(--primary);color:#fff;font-size:0.75rem;font-weight:600}
.game-card .info{padding:20px 20px 24px}
.game-card .info h3{font-size:1.1rem;font-weight:700;margin-bottom:6px}
.game-card .info .meta{display:flex;align-items:center;gap:12px;font-size:0.82rem;color:var(--text-secondary);margin-bottom:10px}
.game-card .info .meta span{display:flex;align-items:center;gap:4px}
.game-card .info .meta i{color:var(--primary);font-size:0.75rem}
.game-card .info p{font-size:0.88rem;color:var(--text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.game-card .info .tag-group{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.game-card .info .tag{display:inline-block;padding:2px 10px;border-radius:50px;background:rgba(255,106,0,0.1);color:var(--primary-light);font-size:0.72rem;font-weight:500}
@media(max-width:1024px){.games-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.games-grid{grid-template-columns:1fr}}

/* News / CMS List */
.news{background:var(--bg-card);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{display:flex;gap:20px;background:rgba(255,255,255,0.02);border:1px solid var(--border-color);border-radius:var(--radius);padding:20px;transition:var(--transition)}
.news-card:hover{background:rgba(255,106,0,0.04);border-color:rgba(255,106,0,0.15);transform:translateY(-2px)}
.news-card .thumb{width:110px;min-height:80px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0;background:var(--bg-card)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{flex:1;min-width:0}
.news-card .body .cat{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:50px;background:rgba(255,106,0,0.1);color:var(--primary-light);font-size:0.7rem;font-weight:500;margin-bottom:6px}
.news-card .body h3{font-size:1rem;font-weight:600;line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .body h3 a{color:var(--text-primary)}
.news-card .body h3 a:hover{color:var(--primary)}
.news-card .body .excerpt{font-size:0.85rem;color:var(--text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.news-card .body .time{font-size:0.78rem;color:var(--text-muted);display:flex;align-items:center;gap:6px}
.news-card .body .time i{font-size:0.7rem}
.news-empty{grid-column:1/-1;text-align:center;padding:48px 24px;color:var(--text-secondary);background:rgba(255,255,255,0.02);border-radius:var(--radius);border:1px dashed var(--border-color)}
.news-empty i{font-size:2rem;color:var(--text-muted);margin-bottom:12px;display:block}
@media(max-width:768px){.news-grid{grid-template-columns:1fr}.news-card{flex-direction:column}.news-card .thumb{width:100%;height:140px}}

/* Data / Stats */
.data-section{background:linear-gradient(135deg,rgba(15,15,26,0.95),rgba(26,26,46,0.9)),url('/assets/images/backpic/back-2.png') center center/cover no-repeat;position:relative}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.data-item .num{font-size:2.6rem;font-weight:900;background:linear-gradient(135deg,var(--primary),#ffb347);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.data-item .label{color:var(--text-secondary);font-size:0.9rem;margin-top:6px}
.data-item .desc{font-size:0.8rem;color:var(--text-muted);margin-top:4px}
@media(max-width:768px){.data-grid{grid-template-columns:repeat(2,1fr);gap:24px}.data-item .num{font-size:2rem}}
@media(max-width:520px){.data-grid{grid-template-columns:1fr}}

/* Guide / 图文区块 */
.guide{background:var(--bg-dark)}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guide-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,106,0,0.2)}
.guide-card .cover{height:180px;overflow:hidden}
.guide-card .cover img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.guide-card:hover .cover img{transform:scale(1.04)}
.guide-card .body{padding:20px 20px 24px}
.guide-card .body .step{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:50px;background:rgba(255,106,0,0.1);color:var(--primary-light);font-size:0.7rem;font-weight:500;margin-bottom:8px}
.guide-card .body h3{font-size:1.05rem;font-weight:700;margin-bottom:6px}
.guide-card .body p{font-size:0.88rem;color:var(--text-secondary);line-height:1.6}
@media(max-width:1024px){.guide-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.guide-grid{grid-template-columns:1fr}}

/* FAQ */
.faq{background:var(--bg-card);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:rgba(255,255,255,0.02);border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(255,106,0,0.15)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;font-weight:600;font-size:0.98rem;cursor:pointer;color:var(--text-primary);list-style:none;transition:var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--primary);transition:var(--transition);font-size:0.85rem}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item .answer{padding:0 24px 18px;color:var(--text-secondary);font-size:0.9rem;line-height:1.7}
@media(max-width:768px){.faq-item summary{padding:14px 18px;font-size:0.92rem}.faq-item .answer{padding:0 18px 14px}}

/* CTA */
.cta-section{background:linear-gradient(135deg,rgba(255,106,0,0.12),rgba(255,106,0,0.03)),url('/assets/images/backpic/back-3.png') center center/cover no-repeat;text-align:center;position:relative}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800;margin-bottom:12px}
.cta-section p{color:var(--text-secondary);max-width:520px;margin:0 auto 32px;font-size:1rem}
.cta-section .btn-group{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.cta-section .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:14px 34px;border-radius:var(--radius-sm);font-size:1.05rem;font-weight:700;box-shadow:0 8px 28px rgba(255,106,0,0.35);display:inline-flex;align-items:center;gap:10px}
.cta-section .btn-primary:hover{box-shadow:0 12px 40px rgba(255,106,0,0.5);transform:translateY(-2px)}
.cta-section .btn-outline{background:transparent;border:1px solid rgba(255,255,255,0.2);color:var(--text-primary);padding:14px 34px;border-radius:var(--radius-sm);font-size:1.05rem;font-weight:600;display:inline-flex;align-items:center;gap:10px}
.cta-section .btn-outline:hover{background:rgba(255,255,255,0.06);border-color:var(--primary);color:var(--primary)}

/* Footer */
footer{background:var(--secondary);border-top:1px solid var(--border-color);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--border-color)}
.footer-brand .logo{font-size:1.2rem;margin-bottom:12px}
.footer-brand p{font-size:0.88rem;color:var(--text-secondary);line-height:1.7;max-width:320px}
.footer-brand .social{display:flex;gap:12px;margin-top:16px}
.footer-brand .social a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,0.05);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:1rem;transition:var(--transition)}
.footer-brand .social a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:0.95rem;font-weight:700;margin-bottom:16px;color:var(--text-primary)}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:var(--text-secondary);font-size:0.88rem;transition:var(--transition);display:flex;align-items:center;gap:6px}
.footer-col ul li a:hover{color:var(--primary);padding-left:4px}
.footer-col ul li a i{font-size:0.65rem;color:var(--text-muted)}
.footer-bottom{text-align:center;padding:20px 0;font-size:0.82rem;color:var(--text-muted)}
.footer-bottom a{color:var(--text-secondary)}
.footer-bottom a:hover{color:var(--primary)}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;gap:24px}}

/* Scroll to top */
.scroll-top{position:fixed;bottom:30px;right:30px;z-index:999;width:48px;height:48px;border-radius:14px;background:var(--primary);color:#fff;font-size:1.2rem;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(255,106,0,0.35);opacity:0;visibility:hidden;transform:translateY(20px);transition:var(--transition)}
.scroll-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.scroll-top:hover{background:var(--primary-dark);transform:translateY(-3px);box-shadow:0 8px 28px rgba(255,106,0,0.45)}

/* Responsive extras */
@media(max-width:768px){
  .header-cta .btn-primary{padding:8px 16px;font-size:0.82rem}
  .hero-actions .btn-primary,.hero-actions .btn-secondary{padding:12px 24px;font-size:0.95rem}
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --secondary-light: #fab1c8;
            --accent: #fdcb6e;
            --bg-dark: #0f0a1a;
            --bg-section: #1a1230;
            --bg-card: #241b3e;
            --bg-body: #0d0820;
            --text-main: #f0ecff;
            --text-secondary: #b8b0d4;
            --text-muted: #7a72a0;
            --border-color: rgba(162, 155, 254, 0.15);
            --border-light: rgba(162, 155, 254, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 12px rgba(108, 92, 231, 0.08);
            --shadow-md: 0 8px 32px rgba(108, 92, 231, 0.12);
            --shadow-lg: 0 20px 60px rgba(108, 92, 231, 0.18);
            --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.15);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-section: 80px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            min-height: 100vh;
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus-visible { color: #fff; }
        a:focus-visible { outline: 2px solid var(--primary-light); outline-offset: 4px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

        /* ===== 排版 ===== */
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: #fff; letter-spacing: -0.01em; }
        h1 { font-size: clamp(1.8rem, 4.5vw, 3rem); }
        h2 { font-size: clamp(1.5rem, 3.2vw, 2.2rem); }
        h3 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 { margin-bottom: 12px; }
        .section-title p { color: var(--text-muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
        .section-subtitle {
            display: inline-block;
            background: rgba(108, 92, 231, 0.15);
            color: var(--primary-light);
            padding: 4px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(162, 155, 254, 0.15);
        }

        /* ===== 导航 ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 8, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition), box-shadow var(--transition);
        }
        header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.4); }
        header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary-light); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, #fff 0%, var(--primary-light) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-links { display: flex; align-items: center; gap: 6px; }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a i { font-size: 0.85rem; }
        .nav-links a:hover { color: #fff; background: rgba(108, 92, 231, 0.12); }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--secondary), #e84393) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 20px rgba(253, 121, 168, 0.3);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(253, 121, 168, 0.4) !important; }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: #fff;
            background: rgba(108, 92, 231, 0.15);
            width: 44px;
            height: 44px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
        }
        .nav-toggle:hover { background: rgba(108, 92, 231, 0.25); }

        /* ===== 文章页 Hero ===== */
        .article-hero {
            padding-top: 140px;
            padding-bottom: 60px;
            background: linear-gradient(160deg, #0d0820 0%, #1a1230 40%, #0f0a1a 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108,92,231,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(253,121,168,0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero .container-narrow { position: relative; z-index: 1; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--primary-light); }
        .article-breadcrumb .sep { color: var(--text-muted); opacity: 0.4; }
        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            margin-bottom: 20px;
            line-height: 1.25;
            background: linear-gradient(135deg, #fff 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-item i { color: var(--primary-light); font-size: 0.8rem; }
        .article-meta .category-tag {
            background: linear-gradient(135deg, rgba(108,92,231,0.2), rgba(108,92,231,0.1));
            color: var(--primary-light);
            padding: 3px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid rgba(162,155,254,0.15);
        }

        /* ===== 文章正文 ===== */
        .article-body-section {
            padding: 60px 0 var(--spacing-section);
            background: var(--bg-body);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 50px;
            align-items: start;
        }
        .article-main { min-width: 0; }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }
        .article-content .featured-img {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            object-fit: cover;
            max-height: 480px;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .article-content .content-body p { margin-bottom: 1.2rem; }
        .article-content .content-body h2,
        .article-content .content-body h3 {
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }
        .article-content .content-body ul li { list-style: disc; margin-bottom: 0.4rem; }
        .article-content .content-body ol li { list-style: decimal; margin-bottom: 0.4rem; }
        .article-content .content-body a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 3px; }
        .article-content .content-body a:hover { color: #fff; }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.5rem 0;
            background: rgba(108,92,231,0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content .content-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body code {
            background: rgba(108,92,231,0.1);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-light);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .tag {
            background: rgba(108,92,231,0.1);
            color: var(--primary-light);
            padding: 5px 16px;
            border-radius: 50px;
            font-size: 0.82rem;
            border: 1px solid rgba(162,155,254,0.08);
            transition: all var(--transition);
        }
        .article-tags .tag:hover { background: rgba(108,92,231,0.2); border-color: rgba(162,155,254,0.2); }
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
        }
        .article-share span { color: var(--text-muted); font-size: 0.9rem; }
        .article-share .share-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(108,92,231,0.1);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .article-share .share-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* ===== 侧边栏 ===== */
        .article-sidebar { position: sticky; top: 100px; }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-color);
            margin-bottom: 28px;
        }
        .sidebar-card h4 {
            font-size: 1rem;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--primary-light); }
        .sidebar-list li { margin-bottom: 12px; }
        .sidebar-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .sidebar-list li a:hover { background: rgba(108,92,231,0.08); color: #fff; padding-left: 18px; }
        .sidebar-list li a i { color: var(--primary-light); font-size: 0.75rem; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), #2d1b69);
            border-radius: var(--radius-md);
            padding: 28px;
            text-align: center;
            border: 1px solid rgba(162,155,254,0.15);
        }
        .sidebar-cta h4 { color: #fff; margin-bottom: 8px; }
        .sidebar-cta p { color: rgba(255,255,255,0.7); font-size: 0.85rem; margin-bottom: 18px; }
        .sidebar-cta .btn { width: 100%; }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 60px 0 var(--spacing-section);
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(162,155,254,0.2); }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h4 { font-size: 1rem; margin-bottom: 8px; }
        .related-card .card-body h4 a { color: #fff; }
        .related-card .card-body h4 a:hover { color: var(--primary-light); }
        .related-card .card-body p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0; }
        .related-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 12px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 35px rgba(108, 92, 231, 0.4); color: #fff; }
        .btn-secondary {
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary-light);
            border: 1px solid rgba(162, 155, 254, 0.15);
        }
        .btn-secondary:hover { background: rgba(108, 92, 231, 0.2); color: #fff; transform: translateY(-2px); }
        .btn-accent {
            background: linear-gradient(135deg, var(--secondary), #e84393);
            color: #fff;
            box-shadow: 0 4px 20px rgba(253, 121, 168, 0.3);
        }
        .btn-accent:hover { transform: translateY(-3px); box-shadow: 0 8px 35px rgba(253, 121, 168, 0.4); color: #fff; }

        /* ===== 页脚 ===== */
        footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
        .social { display: flex; gap: 12px; }
        .social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(108,92,231,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-3px); }
        .footer-col h4 { font-size: 1rem; margin-bottom: 20px; color: #fff; }
        .footer-col ul li { margin-bottom: 12px; }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .footer-col ul li a i { font-size: 0.6rem; color: var(--primary-light); }
        .footer-col ul li a:hover { color: #fff; padding-left: 4px; }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom p { margin-bottom: 0; }

        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 40px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .not-found-box i { font-size: 4rem; color: var(--primary-light); margin-bottom: 20px; opacity: 0.5; }
        .not-found-box h2 { margin-bottom: 12px; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 24px; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; position: static; }
            .sidebar-card { margin-bottom: 0; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
        }
        @media (max-width: 768px) {
            :root { --spacing-section: 50px; }
            header .container { height: 64px; }
            .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: rgba(13,8,32,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px 24px; border-bottom: 1px solid var(--border-color); gap: 8px; }
            .nav-links.open { display: flex; }
            .nav-links a { width: 100%; padding: 12px 18px; }
            .nav-toggle { display: flex; }
            .article-hero { padding-top: 110px; padding-bottom: 40px; }
            .article-content { padding: 24px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-brand { order: -1; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-content { padding: 18px; }
            .article-meta { gap: 12px; font-size: 0.82rem; }
            .article-hero h1 { font-size: 1.5rem; }
            .related-card img { height: 150px; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 10px; }
        .mt-2 { margin-top: 20px; }
        .mt-3 { margin-top: 40px; }
        .mb-1 { margin-bottom: 10px; }
        .mb-2 { margin-bottom: 20px; }
        .mb-3 { margin-bottom: 40px; }
        .gap-1 { gap: 10px; }
        .gap-2 { gap: 20px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b0b1a;
            --primary-light: #1a1a3e;
            --primary-mid: #12122a;
            --accent: #f0c040;
            --accent-hover: #e0b030;
            --accent-glow: rgba(240, 192, 64, 0.25);
            --secondary: #ff6b35;
            --secondary-hover: #e85a2a;
            --cyber: #00d4ff;
            --bg-dark: #0b0b1a;
            --bg-card: #12122a;
            --bg-card-hover: #1a1a3e;
            --bg-section: #0f0f22;
            --bg-section-alt: #0d0d1e;
            --text-white: #ffffff;
            --text-light: #e0e0e0;
            --text-muted: #a0a0b0;
            --text-dim: #6a6a7a;
            --border-color: rgba(240, 192, 64, 0.15);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 8px 32px rgba(240, 192, 64, 0.18);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --spacing-section: 90px;
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--accent-hover);
            outline: none;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: clamp(2.2rem, 6vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.3rem, 2.5vw, 1.8rem);
        }
        h4 {
            font-size: 1.2rem;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            background: rgba(240, 192, 64, 0.12);
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
            border: 1px solid rgba(240, 192, 64, 0.15);
        }

        .text-accent {
            color: var(--accent);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .text-dim {
            color: var(--text-dim);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(11, 11, 26, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
            padding: 0;
            transition: background var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            padding-top: 0;
            padding-bottom: 0;
            min-height: 68px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.6rem;
            filter: drop-shadow(0 0 8px var(--accent-glow));
        }
        .logo span {
            background: linear-gradient(135deg, #f0c040, #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a i {
            font-size: 0.9rem;
        }
        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(240, 192, 64, 0.10);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--accent);
            box-shadow: 0 4px 16px var(--accent-glow);
        }
        .nav-links a.active i {
            color: var(--primary);
        }
        .nav-links a .badge-hot {
            background: var(--secondary);
            color: #fff;
            font-size: 0.6rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 12px;
            margin-left: 4px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s infinite;
        }

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

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--secondary), #e04520);
            border: none;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.30);
            margin-left: 12px;
            white-space: nowrap;
            cursor: pointer;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 107, 53, 0.40);
            color: #fff;
        }
        .nav-cta i {
            font-size: 0.85rem;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero / Banner ===== */
        .hero-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            isolation: isolate;
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 11, 26, 0.70) 0%, rgba(11, 11, 26, 0.85) 50%, var(--bg-dark) 100%);
            z-index: 1;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(240, 192, 64, 0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-banner .container {
            position: relative;
            z-index: 2;
        }
        .hero-banner h1 {
            font-size: clamp(2.4rem, 7vw, 4rem);
            font-weight: 800;
            margin-bottom: 16px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .hero-banner h1 span {
            background: linear-gradient(135deg, #f0c040, #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-banner p {
            font-size: 1.15rem;
            max-width: 680px;
            margin: 0 auto 28px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .hero-banner .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 8px;
        }
        .hero-banner .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-light);
            backdrop-filter: blur(6px);
        }
        .hero-banner .hero-tags span i {
            color: var(--accent);
        }

        /* ===== Sections ===== */
        section {
            padding: var(--spacing-section) 0;
        }
        .section-dark {
            background: var(--bg-section);
        }
        .section-darker {
            background: var(--bg-section-alt);
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-muted);
            font-size: 1.05rem;
        }

        /* ===== Cards ===== */
        .card-game {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .card-game:hover {
            transform: translateY(-6px);
            border-color: rgba(240, 192, 64, 0.25);
            box-shadow: var(--shadow-lg), 0 0 40px rgba(240, 192, 64, 0.05);
            background: var(--bg-card-hover);
        }
        .card-game .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--primary-light);
        }
        .card-game .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .card-game:hover .card-img img {
            transform: scale(1.05);
        }
        .card-game .card-img .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--secondary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 16px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.35);
        }
        .card-game .card-img .card-rating {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(11, 11, 26, 0.80);
            backdrop-filter: blur(6px);
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
            border: 1px solid rgba(240, 192, 64, 0.15);
        }
        .card-game .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-game .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .card-game .card-body h3 a {
            color: var(--text-white);
            transition: color var(--transition);
        }
        .card-game .card-body h3 a:hover {
            color: var(--accent);
        }
        .card-game .card-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.65;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-game .card-body .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .card-game .card-body .card-meta span {
            font-size: 0.75rem;
            padding: 3px 12px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-dim);
            border: 1px solid var(--border-light);
        }
        .card-game .card-body .btn-download {
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 24px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--accent);
            border: none;
            transition: all var(--transition);
            box-shadow: 0 4px 16px var(--accent-glow);
        }
        .card-game .card-body .btn-download:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--accent-glow);
            color: var(--primary);
        }

        /* ===== Feature Icons ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-item {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            border-color: rgba(240, 192, 64, 0.20);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
        }
        .feature-item .icon-wrap {
            width: 72px;
            height: 72px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(240, 192, 64, 0.10);
            border: 1px solid rgba(240, 192, 64, 0.15);
            font-size: 1.8rem;
            color: var(--accent);
            transition: all var(--transition);
        }
        .feature-item:hover .icon-wrap {
            background: rgba(240, 192, 64, 0.18);
            transform: scale(1.05);
            box-shadow: 0 0 30px rgba(240, 192, 64, 0.10);
        }
        .feature-item h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
            margin: 0 auto;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(240, 192, 64, 0.20);
            box-shadow: var(--shadow-sm);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -0.03em;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .stat-item .stat-icon {
            font-size: 1.4rem;
            color: var(--text-dim);
            margin-bottom: 10px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 192, 64, 0.15);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.05rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(240, 192, 64, 0.10);
            color: var(--accent);
            font-size: 0.85rem;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light), var(--bg-dark));
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(240, 192, 64, 0.06) 0%, transparent 70%);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--accent);
            border: none;
            transition: all var(--transition);
            box-shadow: 0 8px 32px var(--accent-glow);
            cursor: pointer;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 44px var(--accent-glow);
            background: var(--accent-hover);
            color: var(--primary);
        }
        .cta-section .btn-cta i {
            font-size: 1.1rem;
        }

        /* ===== Footer ===== */
        footer {
            background: var(--bg-section-alt);
            border-top: 1px solid var(--border-light);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-light);
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 18px;
            max-width: 360px;
        }
        .footer-brand .social {
            display: flex;
            gap: 12px;
        }
        .footer-brand .social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .footer-brand .social a:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px var(--accent-glow);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .footer-col ul li a i {
            font-size: 0.6rem;
            color: var(--text-dim);
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col ul li a:hover i {
            color: var(--accent);
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            color: var(--text-dim);
            font-size: 0.85rem;
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 60px;
            }

            .site-header .container {
                min-height: 60px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(11, 11, 26, 0.96);
                backdrop-filter: blur(14px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 10px 16px;
                border-radius: 12px;
                font-size: 1rem;
            }
            .nav-links a.active {
                background: var(--accent);
                color: var(--primary);
            }
            .nav-cta {
                margin: 8px 0 0 0;
                width: 100%;
                justify-content: center;
                padding: 12px;
            }

            .hero-banner {
                min-height: 320px;
                padding: 60px 0 40px;
            }
            .hero-banner h1 {
                font-size: clamp(1.8rem, 6vw, 2.6rem);
            }
            .hero-banner p {
                font-size: 1rem;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }

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

            .faq-question {
                font-size: 0.95rem;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 0.88rem;
            }

            .section-header {
                margin-bottom: 36px;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-banner {
                min-height: 260px;
                padding: 44px 0 32px;
            }
            .hero-banner .hero-tags span {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .card-game .card-body {
                padding: 16px 16px 20px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
        }

        /* ===== Accessibility ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-light);
            border-radius: 8px;
            border: 2px solid var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-dim);
        }

        /* ===== Utility ===== */
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .text-center {
            text-align: center;
        }