/* roulang page: index */
:root{
  --bg-deep:#050a15;
  --bg-main:#0a1428;
  --bg-card:#0f1d38;
  --bg-card-hover:#142645;
  --bg-soft:#111f3d;
  --primary:#4d8dff;
  --primary-dark:#2f66d4;
  --accent:#f0a93b;
  --accent-dark:#d48d24;
  --text-main:#e8eef8;
  --text-muted:#8fa1bd;
  --text-faint:#5f7293;
  --border:rgba(255,255,255,0.08);
  --border-light:rgba(255,255,255,0.16);
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover:0 20px 55px rgba(0,0,0,0.55);
  --shadow-glow:0 0 30px rgba(77,141,255,0.18);
  --transition:all 0.3s cubic-bezier(.4,0,.2,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font);
  background:var(--bg-main);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit}
::selection{background:rgba(77,141,255,0.3);color:#fff}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section-pad{padding:90px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 56px}
.section-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(77,141,255,0.12);border:1px solid rgba(77,141,255,0.25);color:var(--primary);font-size:13px;font-weight:600;padding:6px 18px;border-radius:40px;letter-spacing:1px;margin-bottom:16px}
.section-tag i{font-size:11px}
.section-title{font-size:clamp(26px,4vw,38px);font-weight:800;line-height:1.3;letter-spacing:-0.5px}
.section-sub{color:var(--text-muted);font-size:16px;margin-top:12px;line-height:1.8}

/* header */
.site-header{
  position:fixed;
  top:0;left:0;right:0;z-index:1000;
  background:rgba(6,10,21,0.82);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  transition:var(--transition);
}
.site-header.scrolled{box-shadow:0 6px 30px rgba(0,0,0,0.45);background:rgba(6,10,21,0.92)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:74px;gap:24px;
}
.brand-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-icon{
  width:42px;height:42px;
  background:linear-gradient(135deg,var(--primary) 0%,#7a5cff 100%);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 18px rgba(77,141,255,0.35);
  position:relative;
}
.brand-icon i{color:#fff;font-size:18px}
.brand-icon::after{
  content:'';position:absolute;top:-3px;right:-3px;
  width:10px;height:10px;background:var(--accent);
  border-radius:50%;border:2px solid var(--bg-deep);
}
.brand-text{font-size:20px;font-weight:800;letter-spacing:0.5px;white-space:nowrap}
.brand-badge{
  font-size:10px;background:rgba(240,169,59,0.15);
  border:1px solid rgba(240,169,59,0.4);
  color:var(--accent);padding:2px 10px;border-radius:20px;
  font-weight:600;letter-spacing:1px;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  padding:8px 18px;border-radius:40px;
  font-size:15px;font-weight:500;color:var(--text-muted);
  transition:var(--transition);position:relative;white-space:nowrap;
}
.nav-link:hover{color:var(--text-main);background:rgba(255,255,255,0.06)}
.nav-link.active{
  color:#fff;background:linear-gradient(135deg,rgba(77,141,255,0.25),rgba(122,92,255,0.18));
  box-shadow:inset 0 0 0 1px rgba(77,141,255,0.35);
}
.nav-link.active::after{
  content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;border-radius:10px;background:rgba(255,255,255,0.06)}
.nav-toggle span{width:20px;height:2px;background:var(--text-main);border-radius:2px;transition:var(--transition)}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.header-status{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--text-muted);background:rgba(255,255,255,0.05);
  padding:4px 12px;border-radius:20px;border:1px solid var(--border);white-space:nowrap;
}
.header-status i{color:#4ade80;font-size:10px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:40px;font-size:15px;font-weight:700;
  transition:var(--transition);white-space:nowrap;cursor:pointer;border:none;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,#7a5cff 100%);
  color:#fff;box-shadow:0 4px 18px rgba(77,141,255,0.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(77,141,255,0.5);color:#fff}
.btn-accent{
  background:linear-gradient(135deg,var(--accent) 0%,#f7c35c 100%);
  color:#1a1204;box-shadow:0 4px 18px rgba(240,169,59,0.3);
}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(240,169,59,0.45);color:#1a1204}
.btn-outline{
  background:transparent;color:var(--text-main);
  border:1px solid var(--border-light);backdrop-filter:blur(10px);
}
.btn-outline:hover{border-color:var(--primary);background:rgba(77,141,255,0.1);transform:translateY(-2px);color:#fff}
.btn-lg{padding:15px 38px;font-size:16px}
.btn-sm{padding:8px 20px;font-size:13px;border-radius:30px}
.btn-block{width:100%}

/* hero */
.hero{
  position:relative;
  min-height:86vh;
  display:flex;align-items:center;
  padding:140px 0 90px;
  overflow:hidden;
  background:var(--bg-deep);
}
.hero-bg{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background-size:cover;background-position:center;
  transform:scale(1.05);
  z-index:0;
}
.hero-overlay{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background:
    linear-gradient(to right,rgba(5,10,21,0.95) 0%,rgba(5,10,21,0.7) 40%,rgba(5,10,21,0.25) 70%,rgba(5,10,21,0.55) 100%),
    linear-gradient(to bottom,rgba(5,10,21,0.3) 0%,rgba(5,10,21,0.1) 30%,var(--bg-main) 100%);
  z-index:1;
}
.hero .container{position:relative;z-index:2}
.hero-content{max-width:720px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(240,169,59,0.12);
  border:1px solid rgba(240,169,59,0.4);
  color:var(--accent);font-size:13px;font-weight:600;
  padding:8px 20px;border-radius:40px;margin-bottom:24px;
  backdrop-filter:blur(10px);
  animation:fadeUp 0.8s ease both;
}
.hero-badge i{font-size:12px;animation:pulse 2s infinite}
.hero h1{
  font-size:clamp(36px,5.5vw,58px);
  font-weight:900;line-height:1.18;letter-spacing:-0.5px;
  margin-bottom:20px;
  background:linear-gradient(120deg,#fff 0%,#c7d7f5 60%,var(--primary) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  animation:fadeUp 0.8s 0.1s ease both;
}
.hero-sub{
  font-size:clamp(15px,2vw,18px);
  color:var(--text-muted);line-height:1.9;
  max-width:600px;margin-bottom:34px;
  animation:fadeUp 0.8s 0.2s ease both;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;animation:fadeUp 0.8s 0.3s ease both}
.hero-points{
  display:flex;gap:28px;flex-wrap:wrap;margin-top:50px;
  animation:fadeUp 0.8s 0.4s ease both;
}
.hero-point{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-muted);
}
.hero-point i{color:var(--accent);font-size:12px;background:rgba(240,169,59,0.15);width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center}

/* stats bar */
.stats-bar{
  position:relative;z-index:5;margin-top:-60px;
  background:linear-gradient(135deg,rgba(15,29,56,0.92),rgba(10,20,40,0.95));
  backdrop-filter:blur(20px);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:40px 36px;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-item{text-align:center;padding:10px}
.stat-num{
  font-size:clamp(30px,4vw,44px);font-weight:900;
  background:linear-gradient(135deg,var(--primary),#7a5cff);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  line-height:1.2;
}
.stat-label{font-size:14px;color:var(--text-muted);margin-top:6px}
.stat-item+.stat-item{border-left:1px solid var(--border)}

/* feature cards */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px 26px;
  text-align:center;
  transition:var(--transition);
  position:relative;overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  opacity:0;transition:var(--transition);
}
.feature-card:hover{transform:translateY(-6px);background:var(--bg-card-hover);box-shadow:var(--shadow-hover);border-color:var(--border-light)}
.feature-card:hover::before{opacity:1}
.feature-icon{
  width:64px;height:64px;margin:0 auto 20px;
  background:linear-gradient(135deg,rgba(77,141,255,0.15),rgba(122,92,255,0.12));
  border:1px solid rgba(77,141,255,0.25);
  border-radius:18px;display:flex;align-items:center;justify-content:center;
}
.feature-icon i{font-size:26px;color:var(--primary)}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-muted);line-height:1.8}

/* category cards */
.cate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.cate-card{
  border-radius:var(--radius-lg);
  overflow:hidden;position:relative;
  background:var(--bg-card);
  border:1px solid var(--border);
  transition:var(--transition);
  display:flex;flex-direction:column;
}
.cate-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:rgba(77,141,255,0.3)}
.cate-media{position:relative;height:200px;overflow:hidden}
.cate-media img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.cate-card:hover .cate-media img{transform:scale(1.08)}
.cate-media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(15,29,56,0.95) 0%,rgba(15,29,56,0.1) 60%,rgba(15,29,56,0.2) 100%);
}
.cate-flag{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(5,10,21,0.65);backdrop-filter:blur(10px);
  color:var(--text-main);font-size:12px;font-weight:600;
  padding:5px 14px;border-radius:20px;
  border:1px solid var(--border-light);
}
.cate-body{padding:24px;flex:1;display:flex;flex-direction:column}
.cate-body h3{font-size:20px;font-weight:700;margin-bottom:8px}
.cate-body p{font-size:14px;color:var(--text-muted);line-height:1.8;flex:1}
.cate-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;font-size:14px;font-weight:700;color:var(--primary);
}
.cate-link i{transition:transform 0.3s ease;font-size:12px}
.cate-link:hover{color:var(--accent)}
.cate-link:hover i{transform:translateX(5px)}

/* news section */
.news-section{background:var(--bg-deep);position:relative}
.news-section::before{
  content:'';position:absolute;top:0;left:50%;
  width:600px;height:600px;
  background:radial-gradient(circle,rgba(77,141,255,0.06) 0%,transparent 70%);
  transform:translateX(-50%);
}
.news-layout{display:grid;grid-template-columns:1fr 360px;gap:40px;position:relative}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  transition:var(--transition);
  overflow:hidden;
}
.news-card:hover{background:var(--bg-card-hover);box-shadow:var(--shadow);transform:translateX(4px);border-color:rgba(77,141,255,0.25)}
.news-card-link{display:block;padding:24px 26px}
.news-card-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.news-cat{
  font-size:11px;font-weight:700;letter-spacing:1px;
  background:rgba(77,141,255,0.14);color:var(--primary);
  padding:3px 12px;border-radius:20px;white-space:nowrap;
}
.news-date{font-size:12px;color:var(--text-faint);display:flex;align-items:center;gap:5px}
.news-title{font-size:17px;font-weight:700;margin-bottom:8px;line-height:1.5}
.news-card:hover .news-title{color:var(--primary)}
.news-desc{
  font-size:13px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:12px;
}
.news-more{font-size:13px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.news-more i{font-size:11px;transition:transform 0.3s ease}
.news-card:hover .news-more i{transform:translateX(4px)}
.empty-tip{
  background:var(--bg-card);border:1px dashed var(--border-light);
  border-radius:var(--radius);padding:40px;text-align:center;
  color:var(--text-muted);font-size:15px;
}
/* sidebar */
.news-sidebar{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px;
}
.side-card h4{
  font-size:16px;font-weight:700;margin-bottom:18px;
  display:flex;align-items:center;gap:8px;
}
.side-card h4 i{color:var(--accent);font-size:14px}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tag{
  font-size:13px;color:var(--text-muted);
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border);
  padding:5px 14px;border-radius:20px;
  transition:var(--transition);
}
.side-tag:hover{color:var(--primary);border-color:rgba(77,141,255,0.4);background:rgba(77,141,255,0.08)}
.side-hot li{
  display:flex;align-items:flex-start;gap:10px;
  padding:10px 0;border-bottom:1px solid var(--border);
  font-size:14px;color:var(--text-muted);line-height:1.5;
}
.side-hot li:last-child{border-bottom:none}
.side-hot .hot-ico{color:var(--accent);font-size:12px;margin-top:5px;flex-shrink:0}
.side-hot a:hover{color:var(--text-main)}

/* game cards */
.game-section{background:var(--bg-main)}
.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.game-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;transition:var(--transition);
  position:relative;
}
.game-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:rgba(240,169,59,0.3)}
.game-cover{height:180px;position:relative;overflow:hidden}
.game-cover img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.game-card:hover .game-cover img{transform:scale(1.1)}
.game-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,var(--bg-card) 0%,transparent 55%);
}
.game-type{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:11px;background:rgba(5,10,21,0.7);backdrop-filter:blur(10px);
  color:#fff;padding:4px 12px;border-radius:20px;border:1px solid var(--border-light);
}
.game-score{
  position:absolute;bottom:10px;right:14px;z-index:2;
  background:rgba(240,169,59,0.9);color:#1a1204;
  font-size:13px;font-weight:800;padding:3px 10px;border-radius:10px;
}
.game-body{padding:20px}
.game-body h3{font-size:17px;font-weight:700;margin-bottom:6px}
.game-body p{font-size:13px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.game-actions{display:flex;gap:10px;margin-top:14px}
.game-btn{
  flex:1;text-align:center;font-size:13px;font-weight:600;
  padding:8px 12px;border-radius:8px;transition:var(--transition);
  border:1px solid var(--border-light);
}
.game-btn.play{background:linear-gradient(135deg,var(--primary),#7a5cff);color:#fff;border:none}
.game-btn.play:hover{opacity:0.88;transform:translateY(-2px)}
.game-btn.detail{color:var(--text-muted)}
.game-btn.detail:hover{color:var(--text-main);border-color:var(--primary)}

/* process */
.process-section{background:var(--bg-deep);position:relative}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.process-item{position:relative;text-align:center;padding:36px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition)}
.process-item:hover{transform:translateY(-5px);background:var(--bg-card-hover)}
.process-item::after{
  content:'';position:absolute;top:50%;right:-22px;width:24px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.process-item:last-child::after{display:none}
.process-num{
  width:52px;height:52px;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--primary),#7a5cff);
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;color:#fff;
  box-shadow:0 6px 22px rgba(77,141,255,0.35);
  position:relative;
}
.process-num::before{
  content:'';position:absolute;inset:-5px;border-radius:50%;
  border:1px solid rgba(77,141,255,0.3);animation:pulse 2s infinite;
}
.process-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.process-item p{font-size:13px;color:var(--text-muted);line-height:1.7}

/* data banner */
.data-banner{
  position:relative;padding:100px 0;overflow:hidden;
  background-size:cover;background-position:center;
}
.data-banner::before{
  content:'';position:absolute;inset:0;
  background:rgba(5,10,21,0.85);
}
.data-banner .container{position:relative;z-index:2}
.data-banner-head{text-align:center;max-width:700px;margin:0 auto 50px}
.data-banner-head h2{font-size:clamp(26px,4vw,38px);font-weight:800;margin-bottom:14px}
.data-banner-head p{color:var(--text-muted);font-size:16px}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-item{
  text-align:center;padding:30px 20px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border);
  border-radius:var(--radius);
  backdrop-filter:blur(10px);
  transition:var(--transition);
}
.data-item:hover{background:rgba(255,255,255,0.08);transform:translateY(-4px)}
.data-item i{font-size:28px;color:var(--accent);margin-bottom:14px}
.data-item .d-num{font-size:36px;font-weight:900;line-height:1.2}
.data-item .d-label{font-size:14px;color:var(--text-muted);margin-top:6px}

/* faq */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:rgba(77,141,255,0.25)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:22px 26px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-main);
  transition:var(--transition);
}
.faq-q .faq-ico{
  width:34px;height:34px;flex-shrink:0;
  background:rgba(77,141,255,0.15);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  transition:var(--transition);
}
.faq-q .faq-ico i{font-size:14px;color:var(--primary);transform:rotate(0deg);transition:var(--transition)}
.faq-q .faq-arrow{margin-left:auto;font-size:13px;color:var(--text-faint);transition:var(--transition)}
.faq-item.open .faq-q .faq-ico{background:rgba(240,169,59,0.15)}
.faq-item.open .faq-q .faq-ico i{color:var(--accent);transform:rotate(90deg)}
.faq-item.open .faq-q .faq-arrow{transform:rotate(180deg);color:var(--accent)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 0.4s ease;
  padding:0 26px;color:var(--text-muted);font-size:14px;line-height:1.9;
}
.faq-item.open .faq-a{max-height:400px;padding-bottom:22px}

/* cta banner */
.cta-banner{
  position:relative;padding:90px 0;overflow:hidden;
  background-size:cover;background-position:center;
}
.cta-banner::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,10,21,0.93) 0%,rgba(10,20,40,0.8) 100%);
}
.cta-banner .container{position:relative;z-index:2;text-align:center}
.cta-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(240,169,59,0.12);border:1px solid rgba(240,169,59,0.4);
  color:var(--accent);font-size:13px;font-weight:600;
  padding:6px 18px;border-radius:30px;margin-bottom:20px;
}
.cta-banner h2{font-size:clamp(28px,4.5vw,42px);font-weight:800;margin-bottom:16px;line-height:1.3}
.cta-banner p{color:var(--text-muted);font-size:16px;max-width:620px;margin:0 auto 32px;line-height:1.8}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* footer */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--border);
  padding:70px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:50px;padding-bottom:50px}
.footer-brand .brand-logo{margin-bottom:18px}
.footer-brand p{color:var(--text-muted);font-size:14px;line-height:1.9;max-width:340px}
.footer-col h4{font-size:16px;font-weight:700;margin-bottom:20px;position:relative;padding-bottom:10px}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-muted);transition:var(--transition)}
.footer-col a:hover{color:var(--primary);transform:translateX(4px)}
.footer-col a i{font-size:10px;margin-right:6px;color:var(--text-faint)}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:24px 0;
  text-align:center;
  color:var(--text-faint);font-size:13px;
}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--primary)}

/* back to top */
.back-top{
  position:fixed;bottom:30px;right:30px;z-index:999;
  width:46px;height:46px;border-radius:14px;
  background:var(--bg-card);border:1px solid var(--border-light);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:16px;
  opacity:0;visibility:hidden;transform:translateY(20px);
  transition:var(--transition);
  box-shadow:var(--shadow);
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* animations */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(24px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:0.6;transform:scale(1.15)}
}

/* responsive */
@media screen and (max-width:1024px){
  .section-pad{padding:70px 0}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .cate-grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .game-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .stat-item+.stat-item{border-left:none}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .process-item::after{display:none}
}
@media screen and (max-width:768px){
  .site-header .main-nav{
    position:fixed;top:74px;left:0;right:0;
    background:rgba(6,10,21,0.97);backdrop-filter:blur(20px);
    flex-direction:column;align-items:flex-start;
    padding:20px 24px 30px;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:all 0.3s ease;
    border-bottom:1px solid var(--border);
  }
  .site-header .main-nav.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-link{width:100%;padding:12px 16px;border-radius:12px}
  .nav-toggle{display:flex}
  .header-status{display:none}
  .hero{min-height:auto;padding:130px 0 100px}
  .hero-points{gap:14px;flex-direction:column}
  .cate-grid{grid-template-columns:1fr}
  .cate-media{height:180px}
  .features-grid{grid-template-columns:1fr}
  .game-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr;gap:16px}
  .cta-banner{padding:70px 0}
  .footer-grid{grid-template-columns:1fr}
  .brand-badge{display:none}
  .hero-actions .btn{width:100%}
}
@media screen and (max-width:520px){
  .section-pad{padding:56px 0}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stats-bar{padding:26px 20px}
  .news-card-link{padding:20px}
  .faq-q{padding:18px 20px}
  .faq-a{padding:0 20px}
  .data-grid{grid-template-columns:1fr 1fr;gap:14px}
  .footer-grid{gap:30px}
  .brand-text{font-size:17px}
  .brand-icon{width:36px;height:36px}
  .header-actions .btn{padding:8px 15px;font-size:12px}
  .back-top{bottom:20px;right:20px;width:40px;height:40px}
  .cta-banner h2{font-size:24px}
  .hero h1{font-size:34px}
}

/* roulang page: article */
:root {
  --primary: #7c4dff;
  --primary-dark: #5e35b1;
  --primary-light: #b388ff;
  --accent: #00e5ff;
  --accent-2: #ff6d00;
  --dark: #0b0825;
  --dark-2: #141034;
  --dark-3: #1d1745;
  --text: #e8e6f5;
  --text-dim: #a29ec4;
  --border: rgba(255,255,255,0.09);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0,0,0,0.45);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.3);
  --space: 32px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--dark); color: var(--text); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: all 0.25s ease; }
a:hover { color: #fff; }
button { font-family: var(--font); }
input, textarea, select { font-family: var(--font); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(13, 10, 40, 0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--primary), var(--accent)); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 16px; color: #fff; box-shadow: 0 4px 14px rgba(124,77,255,0.4); }
.brand-text { font-size: 18px; font-weight: 800; color: #fff; letter-spacing: 0.5px; white-space: nowrap; }
.brand-badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--accent); background: rgba(0,229,255,0.12); border: 1px solid rgba(0,229,255,0.3); padding: 3px 10px; border-radius: 30px; margin-left: 6px; white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav .nav-link { display: inline-block; padding: 8px 16px; color: var(--text-dim); font-size: 15px; font-weight: 500; border-radius: 8px; transition: all 0.25s; position: relative; }
.main-nav .nav-link:hover { color: #fff; background: rgba(124,77,255,0.12); }
.main-nav .nav-link.active { color: #fff; background: linear-gradient(135deg, rgba(124,77,255,0.25), rgba(0,229,255,0.1)); box-shadow: inset 0 0 0 1px rgba(124,77,255,0.3); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-status { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: #69f0ae; background: rgba(105,240,174,0.1); padding: 5px 12px; border-radius: 30px; border: 1px solid rgba(105,240,174,0.25); white-space: nowrap; }
.header-status i { font-size: 8px; }
.btn { display: inline-flex; align-items: center; gap: 8px; border: none; cursor: pointer; font-weight: 600; transition: all 0.3s; border-radius: 10px; font-size: 14px; line-height: 1; padding: 12px 24px; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 4px 18px rgba(124,77,255,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 26px rgba(124,77,255,0.5); color: #fff; }
.btn-sm { padding: 9px 20px; font-size: 13px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 40px; height: 40px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border-radius: 8px; }
.nav-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 2px; transition: all 0.3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.article-hero { position: relative; padding: 90px 0 70px; background: linear-gradient(135deg, rgba(11,8,37,0.92), rgba(30,20,80,0.85)), url('/assets/images/backpic/back-3.png') center/cover fixed; border-bottom: 1px solid var(--border); }
.article-hero .container { position: relative; z-index: 2; }
.article-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); margin-bottom: 20px; flex-wrap: wrap; }
.article-breadcrumb a { color: var(--accent); }
.article-breadcrumb a:hover { color: #fff; }
.article-breadcrumb .sep { color: rgba(255,255,255,0.35); font-size: 11px; }
.article-category-badge { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: 30px; margin-bottom: 16px; letter-spacing: 1px; }
.article-title { font-size: clamp(28px, 4.2vw, 44px); font-weight: 800; line-height: 1.3; color: #fff; margin-bottom: 18px; letter-spacing: -0.5px; }
.article-meta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; font-size: 14px; color: var(--text-dim); }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); font-size: 12px; }
.article-main { padding: 60px 0 80px; }
.article-layout { display: grid; grid-template-columns: 280px 1fr 300px; gap: 40px; align-items: start; }
.article-sidebar-left { position: sticky; top: 100px; }
.sidebar-card { background: var(--dark-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.sidebar-card h4 { font-size: 15px; color: #fff; font-weight: 700; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.sidebar-card h4 i { color: var(--accent); }
.sidebar-list { list-style: none; }
.sidebar-list li { margin-bottom: 6px; }
.sidebar-list a { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 8px; color: var(--text-dim); font-size: 14px; transition: all 0.25s; }
.sidebar-list a:hover { background: rgba(124,77,255,0.1); color: #fff; padding-left: 16px; }
.sidebar-list a i { font-size: 11px; color: var(--primary-light); }
.article-content-wrap { background: var(--dark-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 44px; box-shadow: var(--shadow); }
.article-content { color: var(--text); font-size: 16px; line-height: 2; }
.article-content > *:not(:last-child) { margin-bottom: 1.4em; }
.article-content h2 { font-size: 24px; color: #fff; font-weight: 700; margin-top: 1.8em; padding-bottom: 10px; border-bottom: 2px solid rgba(124,77,255,0.3); }
.article-content h3 { font-size: 20px; color: #fff; font-weight: 600; margin-top: 1.5em; }
.article-content p { color: var(--text); }
.article-content ul, .article-content ol { padding-left: 24px; }
.article-content li { margin-bottom: 6px; }
.article-content blockquote { border-left: 3px solid var(--accent); background: rgba(0,229,255,0.06); padding: 16px 20px; border-radius: 0 10px 10px 0; color: var(--text-dim); font-style: italic; }
.article-content img { border-radius: var(--radius-sm); margin: 24px 0; }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: #fff; }
.article-pagination { display: flex; justify-content: space-between; gap: 12px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.article-pagination a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; background: var(--dark-3); border: 1px solid var(--border); border-radius: 10px; font-size: 14px; color: var(--text-dim); transition: all 0.25s; }
.article-pagination a:hover { border-color: var(--primary); color: #fff; transform: translateY(-1px); }
.article-sidebar-right { position: sticky; top: 100px; }
.article-toc { background: var(--dark-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.article-toc h4 { font-size: 15px; color: #fff; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.article-toc h4 i { color: var(--accent); }
.article-toc ul { list-style: none; }
.article-toc li { margin-bottom: 4px; }
.article-toc a { display: block; padding: 6px 10px; border-radius: 6px; color: var(--text-dim); font-size: 13px; transition: all 0.2s; border-left: 2px solid transparent; }
.article-toc a:hover { color: #fff; background: rgba(124,77,255,0.08); border-left-color: var(--primary); }
.related-card { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.related-card:last-child { border-bottom: none; }
.related-thumb { width: 64px; height: 48px; object-fit: cover; border-radius: 6px; background: var(--dark-3); flex-shrink: 0; }
.related-info { flex: 1; min-width: 0; }
.related-info a { display: block; font-size: 13px; color: var(--text); font-weight: 500; line-height: 1.5; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.related-info a:hover { color: var(--accent); }
.related-info .time { font-size: 11px; color: var(--text-dim); margin-top: 4px; display: block; }
.not-found-wrap { padding: 80px 0; text-align: center; }
.not-found-box { display: inline-block; background: var(--dark-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 60px 80px; box-shadow: var(--shadow); }
.not-found-icon { font-size: 48px; color: var(--primary-light); margin-bottom: 20px; }
.not-found-box h1 { font-size: 28px; color: #fff; margin-bottom: 12px; }
.not-found-box p { color: var(--text-dim); margin-bottom: 24px; }
.btn-back { display: inline-flex; align-items: center; gap: 8px; }
.related-section { padding: 60px 0 80px; background: var(--dark); border-top: 1px solid var(--border); }
.section-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; gap: 20px; flex-wrap: wrap; }
.section-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--accent); background: rgba(0,229,255,0.08); padding: 4px 14px; border-radius: 30px; margin-bottom: 10px; }
.section-title { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 8px; }
.section-sub { color: var(--text-dim); font-size: 15px; max-width: 640px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: var(--dark-2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all 0.35s; box-shadow: var(--shadow-sm); }
.news-card:hover { transform: translateY(-4px); border-color: rgba(124,77,255,0.4); box-shadow: var(--shadow); }
.news-card-thumb { position: relative; height: 180px; overflow: hidden; }
.news-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-card-thumb img { transform: scale(1.06); }
.news-card-thumb .cat-badge { position: absolute; top: 12px; left: 12px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; font-size: 12px; padding: 4px 12px; border-radius: 30px; font-weight: 600; }
.news-card-body { padding: 20px; }
.news-card-body h3 { font-size: 16px; line-height: 1.5; margin-bottom: 10px; }
.news-card-body h3 a { color: #fff; }
.news-card-body h3 a:hover { color: var(--accent); }
.news-card-body p { font-size: 14px; color: var(--text-dim); line-height: 1.6; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: rgba(255,255,255,0.45); }
.news-card-meta i { font-size: 11px; }
.site-footer { background: var(--dark-2); border-top: 1px solid var(--border); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand p { color: var(--text-dim); font-size: 14px; line-height: 1.8; max-width: 420px; }
.footer-col h4 { font-size: 16px; color: #fff; font-weight: 600; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 2px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { display: inline-flex; align-items: center; gap: 6px; color: var(--text-dim); font-size: 14px; transition: all 0.25s; }
.footer-col ul a i { font-size: 10px; color: var(--primary-light); }
.footer-col ul a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 22px 0; text-align: center; }
.footer-bottom p { color: var(--text-dim); font-size: 13px; }
.cta-section { padding: 70px 0; background: linear-gradient(135deg, var(--dark-2), var(--dark-3)); border-top: 1px solid var(--border); }
.cta-box { background: linear-gradient(135deg, rgba(124,77,255,0.2), rgba(0,229,255,0.08)), url('/assets/images/backpic/back-2.png') center/cover; border-radius: var(--radius); padding: 60px; text-align: center; border: 1px solid rgba(124,77,255,0.25); position: relative; overflow: hidden; }
.cta-box h2 { font-size: clamp(24px, 3vw, 34px); color: #fff; font-weight: 800; margin-bottom: 14px; }
.cta-box p { color: var(--text-dim); max-width: 600px; margin: 0 auto 24px; font-size: 15px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,0.25); color: #fff; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(0,229,255,0.08); }
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar-left { position: static; }
  .article-sidebar-right { position: static; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .main-nav { position: fixed; top: 72px; left: 0; right: 0; background: var(--dark-2); flex-direction: column; padding: 20px; gap: 4px; border-bottom: 1px solid var(--border); transform: translateY(-120%); opacity: 0; transition: all 0.35s; z-index: 999; backdrop-filter: blur(20px); }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav .nav-link { width: 100%; text-align: left; padding: 12px 16px; }
  .nav-toggle { display: flex; }
  .header-status { display: none; }
  .article-hero { padding: 60px 0 50px; background-attachment: scroll; }
  .article-content-wrap { padding: 28px 22px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-box { padding: 40px 24px; }
  .header-actions .btn { display: none; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand-text { font-size: 15px; }
  .brand-badge { display: none; }
  .article-title { font-size: 24px; }
  .article-meta { gap: 12px; }
  .article-content-wrap { padding: 22px 16px; }
  .article-pagination a { width: 100%; justify-content: center; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
}

/* roulang page: category1 */
:root {
  --primary: #0b1a2e;
  --primary-light: #132a47;
  --primary-deep: #060e1a;
  --accent: #f5a623;
  --accent-light: #ffc266;
  --accent-dark: #d48a17;
  --cyan: #4cc9f0;
  --bg-body: #070d16;
  --bg-section: #0a1524;
  --bg-card: rgba(255, 255, 255, 0.045);
  --bg-card-hover: rgba(255, 255, 255, 0.075);
  --text-main: #e8edf3;
  --text-muted: #8fa0b9;
  --text-light: #c4d0de;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 10px 32px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 20px 54px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-light);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

input,
textarea {
  font-family: inherit;
}

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

.grid-container {
  max-width: 1200px;
}

.section {
  padding: 84px 0;
  position: relative;
}

section.section-alt {
  background: var(--bg-section);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 166, 35, 0.12);
  border: 1px solid rgba(245, 166, 35, 0.3);
  color: var(--accent-light);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 16px;
  border-radius: 40px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-tag i {
  font-size: 0.7rem;
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.section-head .section-title {
  font-size: clamp(1.65rem, 3.4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.section-head .section-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.75;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  padding: 13px 26px;
  border-radius: 40px;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #0b1a2e;
  box-shadow: 0 6px 20px rgba(245, 166, 35, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(245, 166, 35, 0.35);
  color: #0b1a2e;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.82rem;
}

.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-light);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-2px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 13, 22, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 10px 0;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #0b1a2e;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(245, 166, 35, 0.3);
}

.brand-text {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  color: #fff;
  white-space: nowrap;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(76, 201, 240, 0.12);
  border: 1px solid rgba(76, 201, 240, 0.25);
  color: var(--cyan);
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 30px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav .nav-link {
  position: relative;
  padding: 9px 16px;
  border-radius: 40px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s ease;
}

.main-nav .nav-link:hover {
  color: var(--text-light);
}

.main-nav .nav-link:hover::after {
  width: 22px;
}

.main-nav .nav-link.active {
  color: var(--accent-light);
  background: rgba(245, 166, 35, 0.08);
}

.main-nav .nav-link.active::after {
  width: 22px;
  background: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: #5fd9a7;
  background: rgba(95, 217, 167, 0.1);
  border: 1px solid rgba(95, 217, 167, 0.2);
  padding: 5px 12px;
  border-radius: 30px;
  white-space: nowrap;
}

.header-status i {
  font-size: 0.4rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.page-banner {
  position: relative;
  padding: 96px 0 96px;
  background: linear-gradient(120deg, rgba(6, 14, 26, 0.94) 0%, rgba(11, 26, 46, 0.82) 55%, rgba(20, 40, 64, 0.7) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.15), transparent 70%);
  pointer-events: none;
}

.banner-inner {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--accent-light);
}

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.65rem;
}

.breadcrumb .current {
  color: var(--accent-light);
}

.page-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  background: linear-gradient(135deg, #ffffff 20%, var(--accent-light) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 620px;
  line-height: 1.8;
}

.banner-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 16px;
  border-radius: 40px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-light);
}

.banner-badge i {
  color: var(--accent);
}

.login-methods {
  background: var(--bg-section);
}

.method-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.method-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.method-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(245, 166, 35, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.method-card:hover::before {
  opacity: 1;
}

.method-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.16), rgba(245, 166, 35, 0.06));
  border: 1px solid rgba(245, 166, 35, 0.24);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.method-tag {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 30px;
  background: rgba(76, 201, 240, 0.12);
  border: 1px solid rgba(76, 201, 240, 0.26);
  color: var(--cyan);
  letter-spacing: 0.03em;
}

.method-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.method-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 18px;
  flex-grow: 1;
}

.method-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-top: 6px;
}

.method-link i {
  transition: transform 0.3s ease;
  font-size: 0.75rem;
}

.method-link:hover {
  color: var(--accent);
}

.method-link:hover i {
  transform: translateX(4px);
}

.login-steps {
  background: var(--bg-body);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
}

.step-item:hover {
  border-color: rgba(245, 166, 35, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.step-num {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: rgba(245, 166, 35, 0.12);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.step-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.step-item::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -16px;
  width: 32px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.18), transparent);
}

.step-item:last-child::after {
  display: none;
}

.security-tips {
  background: var(--bg-section);
  position: relative;
  overflow: hidden;
}

.security-tips::before {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(76, 201, 240, 0.08), transparent 70%);
  pointer-events: none;
}

.security-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  transition: var(--transition);
  height: 100%;
}

.security-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  transform: translateX(4px);
}

.security-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  background: rgba(76, 201, 240, 0.12);
  border: 1px solid rgba(76, 201, 240, 0.22);
  color: var(--cyan);
}

.security-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 5px;
}

.security-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.guide-list {
  background: var(--bg-body);
}

.guide-card {
  display: flex;
  align-items: stretch;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

.guide-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(245, 166, 35, 0.28);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.guide-cover {
  width: 260px;
  flex-shrink: 0;
  position: relative;
  min-height: 180px;
  overflow: hidden;
}

.guide-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.guide-card:hover .guide-cover img {
  transform: scale(1.05);
}

.guide-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 40%, rgba(7, 13, 22, 0.4));
}

.guide-info {
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-light);
  background: rgba(245, 166, 35, 0.1);
  border: 1px solid rgba(245, 166, 35, 0.2);
  padding: 3px 12px;
  border-radius: 30px;
  align-self: flex-start;
  margin-bottom: 12px;
}

.guide-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.4;
}

.guide-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 12px;
}

.guide-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.4);
}

.guide-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.faq-section {
  background: var(--bg-section);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-strong);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-light);
  text-align: left;
  transition: var(--transition);
}

.faq-question i {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq-item.active .faq-question {
  color: var(--accent-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.87rem;
  line-height: 1.75;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer-inner {
  border-top-color: var(--border);
  padding-top: 14px;
}

.cta-section {
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.08), rgba(11, 26, 46, 0.2));
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 100px 0;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  opacity: 0.16;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}

.cta-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 166, 35, 0.14);
  border: 1px solid rgba(245, 166, 35, 0.3);
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 40px;
  margin-bottom: 18px;
}

.cta-title {
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  font-weight: 900;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.cta-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 30px;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer {
  background: var(--primary-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 44px;
}

.footer-brand .brand-logo {
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 380px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-col h4::after {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: var(--text-muted);
  font-size: 0.86rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.footer-col ul a i {
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.3);
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent-light);
  transform: translateX(3px);
}

.footer-col ul a:hover i {
  color: var(--accent);
  transform: translateX(2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .section {
    padding: 68px 0;
  }

  .page-banner {
    padding: 80px 0;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .step-item::after {
    display: none;
  }

  .guide-cover {
    width: 220px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    min-height: 64px;
    padding: 8px 0;
  }

  .brand-badge,
  .header-status {
    display: none;
  }

  .brand-text {
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(7, 13, 22, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 6px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.4s ease;
    box-shadow: var(--shadow-lg);
    z-index: 99;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .main-nav .nav-link {
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 0.95rem;
    border: 1px solid transparent;
  }

  .main-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border);
  }

  .main-nav .nav-link.active {
    background: rgba(245, 166, 35, 0.1);
    border-color: rgba(245, 166, 35, 0.25);
  }

  .main-nav .nav-link::after {
    display: none;
  }

  .header-actions .btn-sm {
    padding: 8px 15px;
    font-size: 0.78rem;
  }

  .page-banner {
    padding: 64px 0;
  }

  .section {
    padding: 56px 0;
  }

  .section-head {
    margin-bottom: 36px;
  }

  .grid-x > .cell {
    margin-bottom: 20px;
  }

  .guide-card {
    flex-direction: column;
  }

  .guide-cover {
    width: 100%;
    height: 200px;
  }

  .guide-info {
    padding: 20px;
  }

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

  .cta-section {
    padding: 72px 0;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .cta-buttons .btn {
    width: 100%;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
  }

  .brand-text {
    font-size: 0.92rem;
  }

  .header-actions .btn-sm {
    display: none;
  }

  .page-title {
    font-size: 1.75rem;
  }

  .page-subtitle {
    font-size: 0.92rem;
  }

  .section-head .section-title {
    font-size: 1.45rem;
  }

  .method-card {
    padding: 24px 20px;
  }

  .step-item {
    padding: 22px 18px;
  }

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

  .faq-answer-inner {
    padding: 0 18px 16px;
  }
}

/* roulang page: category2 */
:root{
  --color-primary:#0f1b2d;
  --color-primary-light:#1b2c47;
  --color-accent:#f5a623;
  --color-accent-dark:#e08e0b;
  --color-bg:#f6f8fb;
  --color-bg-alt:#eef2f8;
  --color-text:#1a2a3a;
  --color-text-light:#6b7f93;
  --color-border:#e3eaf2;
  --color-white:#ffffff;
  --radius-sm:8px;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 2px 10px rgba(15,27,45,.06);
  --shadow:0 12px 36px rgba(15,27,45,.1);
  --shadow-lg:0 20px 50px rgba(15,27,45,.16);
  --font-main:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --transition:.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.7;
  color:var(--color-text);
  background:var(--color-bg);
}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
img{max-width:100%;display:block;border:0}
ul{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.grid-x{display:flex;flex-wrap:wrap}
.grid-margin-x{margin:0 -12px}
.grid-margin-x>.cell{padding:0 12px}
.small-up-1>.cell{flex:0 0 100%;max-width:100%}
@media(min-width:768px){
  .medium-up-2>.cell{flex:0 0 50%;max-width:50%}
}
@media(min-width:1024px){
  .large-up-3>.cell{flex:0 0 33.3333%;max-width:33.3333%}
  .large-up-4>.cell{flex:0 0 25%;max-width:25%}
}
.large-5{flex:0 0 41.6667%;max-width:41.6667%}
.large-7{flex:0 0 58.3333%;max-width:58.3333%}
@media(max-width:1023px){
  .large-5,.large-7{flex:0 0 100%;max-width:100%}
}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(15,27,45,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:74px;gap:24px;
}
.brand-logo{
  display:flex;align-items:center;gap:12px;flex-shrink:0;
}
.brand-icon{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--color-accent),#ffcf6e);
  display:flex;align-items:center;justify-content:center;
  color:var(--color-primary);font-size:20px;
  box-shadow:0 6px 18px rgba(245,166,35,.4);
}
.brand-text{
  color:#fff;font-size:20px;font-weight:700;letter-spacing:.5px;white-space:nowrap;
}
.brand-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:#ffd78a;background:rgba(245,166,35,.15);
  border:1px solid rgba(245,166,35,.35);
  border-radius:100px;padding:3px 12px;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:16px}
.nav-link{
  position:relative;padding:10px 16px;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  border-radius:10px;transition:all var(--transition);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.active{color:#fff;background:rgba(245,166,35,.16)}
.nav-link.active::after{
  content:'';position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--color-accent);border-radius:2px;
}
.header-actions{
  display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0;
}
.header-status{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:#7ee2a8;background:rgba(46,204,113,.12);
  border:1px solid rgba(46,204,113,.3);
  border-radius:100px;padding:4px 14px;white-space:nowrap;
}
.header-status i{font-size:8px;color:#2ecc71;animation:pulse 1.6s infinite}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.5;transform:scale(.8)}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 24px;border-radius:100px;
  border:2px solid transparent;cursor:pointer;
  transition:all var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--color-accent),#ffcf6e);
  color:var(--color-primary);
  box-shadow:0 8px 24px rgba(245,166,35,.35);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(245,166,35,.5);
  color:var(--color-primary);
}
.btn-outline{
  border-color:rgba(245,166,35,.6);color:var(--color-accent);
  background:transparent;
}
.btn-outline:hover{
  background:rgba(245,166,35,.12);border-color:var(--color-accent);
  transform:translateY(-2px);color:var(--color-accent-dark);
}
.btn-lg{padding:16px 36px;font-size:17px}
.btn-sm{padding:8px 18px;font-size:13px}
.btn-primary:active,.btn-outline:active{transform:translateY(0) scale(.98)}
.btn:focus{outline:3px solid rgba(245,166,35,.4);outline-offset:2px}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;border-radius:10px;
  background:rgba(255,255,255,.08);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Page Banner ===== */
.page-banner{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:120px 0 110px;color:#fff;
  border-bottom:4px solid var(--color-accent);
}
.page-banner::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(15,27,45,.96) 0%,rgba(15,27,45,.78) 55%,rgba(15,27,45,.45) 100%);
}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.7);margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--color-accent)}
.breadcrumb i{font-size:12px;color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#ffd78a}
.page-banner h1{
  font-size:48px;font-weight:800;line-height:1.2;
  margin-bottom:18px;letter-spacing:1px;
}
.page-banner .banner-sub{
  font-size:18px;line-height:1.8;max-width:640px;
  color:rgba(255,255,255,.85);margin-bottom:30px;
}
.banner-meta{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:28px;
}
.banner-meta .meta-item{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);
  border-radius:100px;padding:8px 18px;font-size:14px;
}
.banner-meta .meta-item i{color:var(--color-accent)}

/* ===== Section Common ===== */
.section{padding:90px 0}
.section-bg-alt{background:var(--color-bg-alt)}
.section-head{
  text-align:center;max-width:680px;margin:0 auto 54px;
}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--color-accent-dark);
  background:rgba(245,166,35,.12);
  border:1px solid rgba(245,166,35,.28);
  border-radius:100px;padding:6px 18px;margin-bottom:16px;
}
.section-head h2{
  font-size:36px;font-weight:800;color:var(--color-primary);
  line-height:1.3;margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--color-text-light)}

/* ===== Stats ===== */
.stats-section{
  position:relative;z-index:3;
  margin-top:-56px;padding:0 20px;
}
.stats-card{
  background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:36px 24px;
  display:flex;align-items:center;justify-content:center;gap:16px;
  border:1px solid var(--color-border);
  transition:transform var(--transition),box-shadow var(--transition);
  margin-bottom:16px;
}
.stats-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stats-icon{
  width:58px;height:58px;border-radius:14px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(245,166,35,.16),rgba(245,166,35,.06));
  border:1px solid rgba(245,166,35,.24);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;color:var(--color-accent-dark);
}
.stats-num{font-size:34px;font-weight:800;color:var(--color-primary);line-height:1.1}
.stats-label{font-size:14px;color:var(--color-text-light);margin-top:4px}

/* ===== Tag Filter ===== */
.tag-list{
  display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:48px;
}
.tag{
  padding:9px 22px;border-radius:100px;
  background:#fff;border:1.5px solid var(--color-border);
  font-size:14px;font-weight:600;color:var(--color-text);
  cursor:pointer;transition:all var(--transition);
}
.tag:hover{border-color:var(--color-accent);color:var(--color-accent-dark);transform:translateY(-2px)}
.tag.active{
  background:var(--color-primary);border-color:var(--color-primary);
  color:#fff;box-shadow:0 6px 18px rgba(15,27,45,.2);
}

/* ===== Game Card ===== */
.game-card{
  background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);border:1px solid var(--color-border);
  overflow:hidden;transition:all var(--transition);
  display:flex;flex-direction:column;margin-bottom:24px;
  position:relative;
}
.game-card:hover{
  transform:translateY(-6px);box-shadow:var(--shadow-lg);
  border-color:rgba(245,166,35,.45);
}
.game-card-media{position:relative;overflow:hidden;aspect-ratio:16/9}
.game-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.game-card:hover .game-card-media img{transform:scale(1.06)}
.game-score{
  position:absolute;top:14px;right:14px;
  background:rgba(15,27,45,.92);color:#ffd78a;
  font-size:20px;font-weight:800;border-radius:12px;
  padding:4px 14px;border:1px solid rgba(245,166,35,.4);
  box-shadow:0 4px 14px rgba(0,0,0,.3);
}
.game-type{
  position:absolute;top:14px;left:14px;
  background:rgba(245,166,35,.95);color:var(--color-primary);
  font-size:13px;font-weight:700;border-radius:100px;
  padding:5px 14px;
}
.game-card-body{padding:24px;flex:1;display:flex;flex-direction:column}
.game-card-body h3{
  font-size:22px;font-weight:700;color:var(--color-primary);margin-bottom:8px;
}
.game-card-body p{
  font-size:14px;color:var(--color-text-light);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.game-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.mini-tag{
  font-size:12px;font-weight:600;color:var(--color-primary-light);
  background:var(--color-bg-alt);border-radius:8px;padding:4px 10px;
}
.game-card-footer{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:16px;border-top:1px dashed var(--color-border);
}
.game-hot{font-size:13px;color:var(--color-text-light);display:inline-flex;align-items:center;gap:6px}
.game-hot i{color:#ff5d5d}

/* ===== Rank Section ===== */
.rank-wrap{background:var(--color-primary);border-radius:var(--radius-lg);padding:48px;color:#fff;position:relative;overflow:hidden}
.rank-wrap::before{
  content:'';position:absolute;top:-80px;right:-80px;width:260px;height:260px;
  background:radial-gradient(circle,rgba(245,166,35,.18),transparent 70%);
  border-radius:50%;
}
.rank-head{display:flex;align-items:center;gap:14px;margin-bottom:32px}
.rank-head i{font-size:34px;color:var(--color-accent)}
.rank-head h2{font-size:28px;font-weight:800;color:#fff}
.rank-list{display:flex;flex-direction:column;gap:6px}
.rank-item{
  display:flex;align-items:center;gap:18px;
  padding:16px 20px;border-radius:14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  transition:all var(--transition);cursor:default;
}
.rank-item:hover{background:rgba(255,255,255,.12);transform:translateX(6px)}
.rank-num{
  font-size:26px;font-weight:800;color:var(--color-accent);
  width:44px;text-align:center;flex-shrink:0;
}
.rank-num.rank-top{color:#ffd78a;text-shadow:0 0 18px rgba(245,166,35,.6)}
.rank-info{flex:1;min-width:0}
.rank-info h4{font-size:17px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-info p{font-size:13px;color:rgba(255,255,255,.6);margin-top:2px}
.rank-score{text-align:right;flex-shrink:0}
.score-val{font-size:24px;font-weight:800;color:#ffd78a}
.score-label{display:block;font-size:12px;color:rgba(255,255,255,.55)}
.rank-side-card{
  background:#fff;border-radius:var(--radius-lg);padding:36px;
  box-shadow:var(--shadow);height:100%;
  border:1px solid var(--color-border);
  display:flex;flex-direction:column;justify-content:center;
}
.rank-side-card h3{font-size:26px;font-weight:800;color:var(--color-primary);margin-bottom:16px}
.rank-side-card p{color:var(--color-text-light);font-size:15px;margin-bottom:18px;line-height:1.8}
.rank-side-tips{
  background:var(--color-bg-alt);border-radius:var(--radius);
  padding:20px;margin-bottom:24px;
}
.rank-side-tips h4{font-size:16px;font-weight:700;color:var(--color-primary);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.rank-side-tips h4 i{color:var(--color-accent-dark)}
.rank-side-tips ul li{font-size:14px;color:var(--color-text);padding:6px 0;display:flex;gap:8px;align-items:flex-start}
.rank-side-tips ul li i{color:var(--color-accent);font-size:12px;margin-top:6px}

/* ===== News List ===== */
.news-card{
  display:flex;gap:24px;background:#fff;
  border-radius:var(--radius-lg);padding:24px;
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-sm);transition:all var(--transition);
  align-items:center;margin-bottom:20px;
}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:rgba(245,166,35,.35)}
.news-thumb{
  width:240px;height:150px;flex-shrink:0;border-radius:var(--radius);
  overflow:hidden;position:relative;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-badge{
  position:absolute;top:10px;left:10px;
  background:rgba(245,166,35,.95);color:var(--color-primary);
  font-size:12px;font-weight:700;border-radius:8px;padding:3px 10px;
}
.news-content{flex:1;min-width:0}
.news-content h3{font-size:20px;font-weight:700;color:var(--color-primary);margin-bottom:8px;line-height:1.4}
.news-content h3 a:hover{color:var(--color-accent-dark)}
.news-content p{font-size:14px;color:var(--color-text-light);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{
  display:flex;align-items:center;gap:18px;font-size:13px;color:var(--color-text-light);
}
.news-meta span{display:inline-flex;align-items:center;gap:6px}
.news-meta i{color:var(--color-accent)}

/* ===== Guide Steps ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{
  background:#fff;border-radius:var(--radius-lg);padding:32px 26px;
  border:1px solid var(--color-border);box-shadow:var(--shadow-sm);
  text-align:center;position:relative;transition:all var(--transition);
  border-top:4px solid var(--color-accent);
}
.step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step-num{
  width:52px;height:52px;border-radius:16px;margin:0 auto 20px;
  background:var(--color-primary);color:#ffd78a;
  font-size:22px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(15,27,45,.2);
}
.step-card h3{font-size:18px;font-weight:700;color:var(--color-primary);margin-bottom:10px}
.step-card p{font-size:14px;color:var(--color-text-light);line-height:1.7}

/* ===== FAQ ===== */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border-radius:var(--radius);
  border:1px solid var(--color-border);box-shadow:var(--shadow-sm);
  margin-bottom:16px;overflow:hidden;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-item:hover{border-color:rgba(245,166,35,.4)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:22px 28px;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--color-primary);
}
.faq-question i{transition:transform .35s;color:var(--color-accent);flex-shrink:0}
.faq-item.open .faq-question i{transform:rotate(180deg)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
}
.faq-answer-inner{padding:0 28px 22px;font-size:15px;color:var(--color-text-light);line-height:1.8}
.faq-item.open .faq-answer{max-height:240px}
.faq-item.open{border-color:rgba(245,166,35,.35);box-shadow:var(--shadow)}

/* ===== CTA ===== */
.cta-section{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:100px 0;color:#fff;text-align:center;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(15,27,45,.97) 0%,rgba(15,27,45,.88) 100%);
}
.cta-section .container{position:relative;z-index:2}
.cta-inner{max-width:760px;margin:0 auto}
.cta-inner h2{font-size:38px;font-weight:800;color:#fff;margin-bottom:18px}
.cta-inner p{font-size:17px;color:rgba(255,255,255,.8);margin-bottom:36px;line-height:1.8}
.cta-actions{display:flex;justify-content:center;gap:18px;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{
  background:var(--color-primary);color:rgba(255,255,255,.75);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-logo{margin-bottom:20px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;max-width:420px}
.footer-col h4{
  color:#fff;font-size:17px;font-weight:700;margin-bottom:22px;position:relative;
  padding-bottom:12px;
}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;width:36px;height:3px;
  background:var(--color-accent);border-radius:3px;
}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{
  font-size:14px;color:rgba(255,255,255,.7);display:inline-flex;align-items:center;gap:6px;
  transition:all var(--transition);
}
.footer-col ul li a:hover{color:var(--color-accent);transform:translateX(4px)}
.footer-col ul li a i{font-size:12px;color:var(--color-accent)}
.footer-bottom{
  text-align:center;padding:26px 0;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .page-banner h1{font-size:38px}
  .section{padding:70px 0}
  .section-head h2{font-size:30px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .news-thumb{width:200px;height:130px}
}
@media(max-width:768px){
  .header-inner{min-height:64px;gap:16px}
  .main-nav{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--color-primary);flex-direction:column;padding:16px 24px 24px;
    gap:4px;box-shadow:0 20px 40px rgba(0,0,0,.3);
    border-top:1px solid rgba(255,255,255,.08);
  }
  .main-nav.open{display:flex}
  .nav-link{width:100%;padding:14px 16px;font-size:16px}
  .nav-toggle{display:flex}
  .header-status{display:none}
  .header-actions .btn-primary span{display:none}
  .page-banner{padding:90px 0 90px}
  .page-banner h1{font-size:30px}
  .page-banner .banner-sub{font-size:16px}
  .section-head h2{font-size:26px}
  .news-card{flex-direction:column;align-items:flex-start}
  .news-thumb{width:100%;height:190px}
  .rank-wrap{padding:30px 24px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .container{padding:0 18px}
  .cta-inner h2{font-size:28px}
  .game-card-body{padding:20px}
}
@media(max-width:520px){
  .stats-card{padding:24px 16px;flex-direction:column;text-align:center}
  .steps-grid{grid-template-columns:1fr}
  .tag-list{gap:8px}
  .tag{padding:7px 14px;font-size:13px}
  .btn-lg{padding:14px 28px;font-size:15px}
  .banner-meta .meta-item{padding:6px 12px;font-size:13px}
  .rank-item{gap:12px;padding:14px 14px}
  .rank-num{font-size:20px;width:34px}
  .score-val{font-size:20px}
  .faq-question{font-size:15px;padding:18px 20px}
  .faq-answer-inner{padding:0 20px 18px}
  .footer-brand p{font-size:13px}
}

/* roulang page: category3 */
:root {
  --primary: #7c3aed;
  --primary-dark: #5b21b6;
  --primary-light: #a78bfa;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg-dark: #0f0a1a;
  --bg-darker: #0a0612;
  --bg-card: #1a1228;
  --bg-card-light: #241736;
  --text-main: #f3ecff;
  --text-weak: #b7a6d9;
  --text-muted: #8a78b0;
  --border: rgba(167, 139, 250, 0.18);
  --border-light: rgba(167, 139, 250, 0.32);
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 8px 22px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-primary: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-primary);
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; border: none; outline: none; background: none; }
i { line-height: 1; }

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

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 6, 18, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(10, 6, 18, 0.95);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.5);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 20px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  color: #fff;
  box-shadow: 0 6px 16px rgba(124, 58, 237, 0.4);
}
.brand-text {
  font-size: 1.22rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #fff, var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-badge {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-weak);
  position: relative;
  white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(167, 139, 250, 0.1); }
.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.35), rgba(245, 158, 11, 0.15));
  border: 1px solid var(--border-light);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-status {
  font-size: 0.82rem;
  color: #4ade80;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(74, 222, 128, 0.1);
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid rgba(74, 222, 128, 0.2);
}
.header-status i { font-size: 0.55rem; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 22px rgba(124, 58, 237, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(124, 58, 237, 0.5); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0f0a1a;
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.3);
}
.btn-accent:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(245, 158, 11, 0.45); }
.btn-outline {
  border-color: var(--border-light);
  color: var(--text-main);
  background: rgba(167, 139, 250, 0.05);
}
.btn-outline:hover { border-color: var(--primary-light); background: rgba(124, 58, 237, 0.15); transform: translateY(-3px); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 180px 0 100px;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  overflow: hidden;
}
.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 6, 18, 0.75), rgba(15, 10, 26, 0.92) 100%);
  z-index: 1;
}
.category-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 75% 20%, rgba(124, 58, 237, 0.22), transparent 55%);
  z-index: 1;
}
.category-hero .container { z-index: 2; }
.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-weak);
  margin-bottom: 24px;
}
.hero-breadcrumb a:hover { color: var(--primary-light); }
.hero-breadcrumb i { font-size: 0.7rem; color: var(--primary-light); }
.hero-title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero-title span {
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 1.12rem;
  color: var(--text-weak);
  max-width: 680px;
  margin-bottom: 34px;
  line-height: 1.9;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 30px;
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-main);
}

/* ===== Section general ===== */
.section {
  padding: 90px 0;
  position: relative;
}
.section-alt { background: var(--bg-darker); }
.section-head {
  text-align: center;
  margin-bottom: 52px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 24px;
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid var(--border);
  color: var(--primary-light);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
  color: #fff;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-weak);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== News Grid ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}
.news-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
  border-color: var(--border-light);
}
.news-card-image {
  position: relative;
  height: 210px;
  overflow: hidden;
}
.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-card-image img { transform: scale(1.07); }
.news-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 10, 26, 0.7));
}
.news-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
}
.news-card-badge.hot { background: linear-gradient(135deg, #ef4444, #dc2626); }
.news-card-badge.warn { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #0f0a1a; }
.news-card-body {
  padding: 26px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-card-title {
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 10px;
  color: #fff;
  transition: var(--transition);
}
.news-card:hover .news-card-title { color: var(--primary-light); }
.news-card-text {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.news-card-meta span { display: flex; align-items: center; gap: 6px; }
.news-card-meta i { font-size: 0.75rem; color: var(--primary-light); }
.read-more {
  color: var(--primary-light);
  font-weight: 700;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.read-more:hover { color: var(--accent); gap: 10px; }

/* ===== Tag filter / chips ===== */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 44px;
}
.chip {
  padding: 9px 20px;
  border-radius: 26px;
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-weak);
  background: rgba(167, 139, 250, 0.06);
  cursor: pointer;
  transition: var(--transition);
}
.chip:hover { color: #fff; border-color: var(--primary-light); background: rgba(124, 58, 237, 0.15); }
.chip.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(124, 58, 237, 0.3);
}

/* ===== Featured / editorial ===== */
.featured-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 30px;
  align-items: stretch;
}
.featured-main {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  min-height: 420px;
  display: flex;
  flex-direction: column;
}
.featured-main img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.featured-main-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.featured-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.featured-title {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
  color: #fff;
}
.featured-text {
  font-size: 0.95rem;
  color: var(--text-weak);
  line-height: 1.8;
  flex: 1;
}
.featured-side {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 18px;
}
.side-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.side-card:hover { border-color: var(--primary-light); background: var(--bg-card-light); transform: translateX(5px); }
.side-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.side-card-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.5;
}
.side-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 30px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent), transparent);
}
.timeline-item {
  position: relative;
  padding: 20px 0 24px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 26px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.2);
  z-index: 1;
}
.timeline-item.hot::before { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.2); }
.timeline-date {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.timeline-item.hot .timeline-date { color: var(--accent); }
.timeline-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}
.timeline-text {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.75;
}

/* ===== Stats ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  text-align: center;
  padding: 36px 20px;
  background: linear-gradient(145deg, var(--bg-card), var(--bg-darker));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.stat-card:hover { transform: translateY(-6px); border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.stat-num {
  font-size: 2.6rem;
  font-weight: 900;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.92rem;
  color: var(--text-weak);
  font-weight: 600;
}

/* ===== FAQ ===== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-light); }
.faq-q {
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}
.faq-q i { color: var(--primary-light); font-size: 0.85rem; transition: var(--transition); }
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--accent); }
.faq-a {
  padding: 0 26px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding-bottom: 22px;
}
.faq-a p {
  font-size: 0.92rem;
  color: var(--text-weak);
  line-height: 1.85;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
  padding: 0 0 90px;
}
.cta-box {
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-radius: 24px;
  padding: 70px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-light);
}
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 6, 18, 0.85), rgba(124, 58, 237, 0.55));
}
.cta-box > * { position: relative; z-index: 1; }
.cta-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.cta-desc {
  font-size: 1rem;
  color: var(--text-weak);
  max-width: 540px;
  margin: 0 auto 30px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  padding: 70px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--border);
}
.footer-brand p {
  margin-top: 18px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 360px;
}
.footer-col h4 {
  font-size: 1.02rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
  color: var(--text-weak);
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.footer-col ul li a i { font-size: 0.7rem; color: var(--primary-light); }
.footer-col ul li a:hover { color: #fff; padding-left: 6px; }
.footer-bottom {
  padding-top: 26px;
  text-align: center;
}
.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Focus & accessibility ===== */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .featured-wrap { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 300px;
    height: calc(100vh - 70px);
    background: var(--bg-darker);
    flex-direction: column;
    align-items: flex-start;
    padding: 30px 28px;
    gap: 8px;
    border-left: 1px solid var(--border);
    transition: right 0.4s ease;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
  }
  .main-nav.open { right: 0; }
  .main-nav .nav-link { width: 100%; font-size: 1rem; }
  .nav-toggle { display: flex; }
  .header-status { display: none; }
}

@media screen and (max-width: 768px) {
  .category-hero { padding: 150px 0 70px; }
  .section { padding: 70px 0; }
  .brand-text { font-size: 1.02rem; }
  .brand-badge { display: none; }
  .cta-box { padding: 48px 28px; }
  .news-grid { grid-template-columns: 1fr; }
  .featured-main img { height: 200px; }
}

@media screen and (max-width: 520px) {
  .container { padding: 0 18px; }
  .stats-row { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stat-num { font-size: 2rem; }
  .hero-title { font-size: 1.7rem; }
  .cta-box { padding: 40px 22px; border-radius: 18px; }
  .cta-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-meta { flex-direction: column; }
  .timeline { padding-left: 22px; }
  .timeline-item::before { left: -22px; }
}