/* roulang page: index */
:root{
  --primary:#0a1633;
  --primary-2:#101f42;
  --primary-3:#162952;
  --accent:#f6b544;
  --accent-2:#ffd08a;
  --accent-dark:#d9921f;
  --bg-light:#f6f8fc;
  --bg-deep:#081124;
  --text-main:#18243a;
  --text-muted:#64748f;
  --text-light:#f2f5fa;
  --border:#e4e8f0;
  --white:#ffffff;
  --radius:14px;
  --radius-lg:22px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(10,22,51,.06);
  --shadow-md:0 8px 30px rgba(10,22,51,.10);
  --shadow-lg:0 18px 50px rgba(10,22,51,.16);
  --transition:.3s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg-light);
  color:var(--text-main);
  line-height:1.7;
  margin:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
ul,ol{margin:0;padding:0;list-style:none}
button{border:none;background:none;cursor:pointer;font-family:inherit}
input,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-container{padding-left:24px;padding-right:24px;max-width:1248px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-dark{background:var(--bg-deep);color:var(--text-light)}
.section-light{background:var(--bg-light)}
.section-white{background:var(--white)}
.section-header{text-align:center;max-width:680px;margin:0 auto 56px}
.section-tag{
  display:inline-block;
  background:rgba(246,181,68,.12);
  color:var(--accent-dark);
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  padding:6px 18px;
  border-radius:30px;
  margin-bottom:14px;
  border:1px solid rgba(246,181,68,.22);
}
.section-header h2{
  font-size:clamp(28px,4vw,40px);
  font-weight:900;
  line-height:1.25;
  margin-bottom:12px;
  letter-spacing:-.5px;
  color:var(--text-main);
}
.section-dark .section-header h2{color:var(--white)}
.section-header p{
  font-size:16px;
  color:var(--text-muted);
  margin-bottom:0;
}
.section-dark .section-header p{color:rgba(255,255,255,.65)}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  font-weight:600;
  font-size:15px;
  padding:14px 32px;
  border-radius:50px;
  transition:all var(--transition);
  line-height:1.4;
}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-lg{padding:17px 44px;font-size:17px}
.btn-accent{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#0a1633;
  box-shadow:0 6px 24px rgba(246,181,68,.35);
}
.btn-accent:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(246,181,68,.45);
  color:#0a1633;
}
.btn-outline-light{
  border:1.5px solid rgba(255,255,255,.5);
  color:var(--white);
  background:transparent;
}
.btn-outline-light:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:rgba(255,255,255,.04);
}
.btn-ghost{
  border:1.5px solid var(--border);
  color:var(--text-main);
  background:var(--white);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--shadow-sm)}

/* Header & Navigation */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(10,22,51,.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s,box-shadow .3s;
}
.site-header.scrolled{background:rgba(10,22,51,.98);box-shadow:0 6px 30px rgba(0,0,0,.24)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:76px;
  gap:24px;
}
.brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0}
.brand-logo{display:inline-flex;align-items:baseline;gap:5px;font-size:22px;font-weight:900;color:var(--white)}
.brand-logo em{font-style:normal;color:var(--accent)}
.brand-sub{
  font-size:11px;
  letter-spacing:2px;
  color:rgba(255,255,255,.55);
  font-weight:500;
  margin-top:2px;
}
.site-nav{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:8px}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:rgba(255,255,255,.75);
  font-size:15px;
  font-weight:500;
  padding:10px 18px;
  border-radius:10px;
  transition:all .25s;
  position:relative;
}
.nav-link:hover{color:var(--white);background:rgba(255,255,255,.06)}
.nav-link.active{color:var(--accent);font-weight:700}
.nav-link.active::after{
  content:'';position:absolute;bottom:2px;left:18px;right:18px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-cta{
  padding:10px 26px;
  font-size:14px;
  margin-left:12px;
  box-shadow:0 4px 18px rgba(246,181,68,.3);
}
.has-mega{position:relative}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  left:50%;
  transform:translateX(-50%) translateY(12px);
  width:420px;
  background:var(--white);
  border-radius:16px;
  box-shadow:var(--shadow-lg);
  padding:22px;
  opacity:0;
  visibility:hidden;
  transition:all .3s ease;
  z-index:1200;
  border:1px solid var(--border);
}
.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
}
.mega-inner{display:flex;gap:20px}
.mega-col{flex:1}
.mega-col h4{
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:1px;
  color:var(--text-muted);
  margin-bottom:12px;
  font-weight:700;
}
.mega-col ul li{margin-bottom:8px}
.mega-col ul li a{
  display:block;
  padding:8px 12px;
  border-radius:8px;
  font-size:14px;
  color:var(--text-main);
  transition:background .2s,color .2s;
}
.mega-col ul li a:hover{background:rgba(246,181,68,.1);color:var(--accent-dark)}
.mega-card{
  background:var(--bg-deep);
  border-radius:12px;
  overflow:hidden;
  padding:0;
  min-height:140px;
  position:relative;
}
.mega-card img{
  width:100%;height:100%;
  object-fit:cover;
  position:absolute;
  inset:0;
  opacity:.6;
}
.mega-card p{
  position:relative;
  z-index:2;
  color:#fff;
  font-size:13px;
  font-weight:600;
  padding:14px;
  background:linear-gradient(to top,rgba(0,0,0,.65),transparent);
  display:flex;
  align-items:flex-end;
  min-height:140px;
  margin:0;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.08);
  border-radius:10px;
}
.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)}

/* Hero */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding:140px 0 90px;
  background:linear-gradient(135deg,#081124 0%,#0f2145 55%,#1a2f5e 100%);
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.25;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(8,17,36,.95) 20%,rgba(10,22,51,.68) 55%,rgba(15,33,69,.3) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-content{max-width:720px}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(246,181,68,.12);
  border:1px solid rgba(246,181,68,.3);
  color:var(--accent-2);
  font-size:13px;
  font-weight:600;
  padding:7px 18px;
  border-radius:30px;
  margin-bottom:24px;
}
.hero-badge i{color:var(--accent)}
.hero h1{
  font-size:clamp(36px,6vw,60px);
  font-weight:900;
  line-height:1.15;
  color:var(--white);
  letter-spacing:-1px;
  margin-bottom:20px;
}
.hero h1 span{color:var(--accent)}
.hero-lead{
  font-size:18px;
  color:rgba(255,255,255,.7);
  margin-bottom:36px;
  max-width:560px;
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:52px}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  max-width:640px;
}
.hero-stat{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:20px 22px;
  backdrop-filter:blur(8px);
  transition:transform .3s,background .3s;
}
.hero-stat:hover{transform:translateY(-4px);background:rgba(255,255,255,.09)}
.hero-stat .num{
  font-size:28px;
  font-weight:900;
  color:var(--accent);
  line-height:1.2;
}
.hero-stat .label{
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-top:6px;
}
.hero-metrics{
  position:absolute;
  right:24px;
  bottom:48px;
  display:flex;
  gap:14px;
  z-index:2;
}
.metric-chip{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  border-radius:30px;
  padding:10px 22px;
  font-size:13px;
  color:rgba(255,255,255,.7);
  backdrop-filter:blur(6px);
}
.metric-chip strong{color:var(--accent);font-size:16px;margin-right:4px}

/* Cards */
.card{
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:16px;
  transition:all var(--transition);
  height:100%;
}
.card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
  border-color:rgba(246,181,68,.4);
}
.feature-card{
  padding:30px;
  position:relative;
  overflow:hidden;
}
.feature-card .icon-wrap{
  width:56px;height:56px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  margin-bottom:20px;
  position:relative;
}
.icon-wrap i{position:relative;z-index:2}
.feature-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
  color:var(--text-main);
}
.feature-card p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
  margin-bottom:0;
}
.feature-card::after{
  content:'';position:absolute;
  width:110px;height:110px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(246,181,68,.12),transparent 70%);
  top:-30px;right:-30px;
}

/* Cover Cards */
.cover-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.cover-card{
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--white);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:all var(--transition);
  display:flex;
  flex-direction:column;
}
.cover-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.cover-card-img{
  position:relative;
  height:190px;
  overflow:hidden;
}
.cover-card-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s;
}
.cover-card:hover .cover-card-img img{transform:scale(1.05)}
.cover-card-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,22,51,.55),transparent 60%);
}
.cover-card-tag{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
  background:var(--accent);
  color:#0a1633;
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:20px;
}
.cover-card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.cover-card-body h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--text-main)}
.cover-card-body p{
  font-size:14px;color:var(--text-muted);
  line-height:1.7;margin-bottom:18px;flex:1;
}
.cover-card-link{
  font-size:14px;
  font-weight:600;
  color:var(--accent-dark);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.cover-card-link i{transition:transform .3s}
.cover-card-link:hover i{transform:translateX(4px)}

/* News / CMS */
.news-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:start;
}
.news-feature{
  background:var(--bg-deep);
  border-radius:var(--radius-lg);
  padding:34px;
  min-height:380px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  position:relative;
  overflow:hidden;
}
.news-feature::before{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(246,181,68,.12),transparent 45%),linear-gradient(to top,rgba(8,17,36,.92),rgba(10,22,51,.3));
  z-index:1;
}
.news-feature>*{position:relative;z-index:2}
.news-cat{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:20px;
  background:var(--accent);
  color:#0a1633;
  margin-bottom:14px;
  align-self:flex-start;
}
.news-feature h3{
  font-size:24px;
  font-weight:700;
  color:#fff;
  line-height:1.4;
  margin-bottom:12px;
}
.news-feature h3 a{color:#fff;transition:color .2s}
.news-feature h3 a:hover{color:var(--accent)}
.news-feature p{
  color:rgba(255,255,255,.65);
  font-size:15px;
  margin-bottom:20px;
}
.news-feature .news-date{
  color:var(--accent);
  font-size:13px;
  font-weight:500;
}
.news-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.news-list-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px 24px;
  transition:all var(--transition);
  display:flex;
  align-items:center;
  gap:20px;
}
.news-list-item:hover{
  box-shadow:var(--shadow-md);
  border-color:rgba(246,181,68,.35);
  transform:translateX(4px);
}
.news-list-item .news-date{
  font-size:13px;
  color:var(--text-muted);
  white-space:nowrap;
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-list-item .news-date i{color:var(--accent)}
.news-list-item h4{
  font-size:15px;
  font-weight:600;
  margin:0;
  color:var(--text-main);
  line-height:1.5;
  flex:1;
}
.news-list-item h4 a:hover{color:var(--accent-dark)}
.news-list-item .news-list-arrow{color:var(--border);font-size:14px;transition:all .3s}
.news-list-item:hover .news-list-arrow{color:var(--accent);transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;
  text-align:center;
  padding:70px 24px;
  background:var(--white);
  border-radius:var(--radius-lg);
  border:1px dashed var(--border);
  color:var(--text-muted);
  font-size:16px;
}

/* Stats Section */
.stats-section{
  position:relative;
  background:var(--bg-deep);
  padding:90px 0;
  overflow:hidden;
}
.stats-section::before{
  content:'';
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  opacity:.18;
}
.stats-wrap{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.stat-card{
  text-align:center;
  padding:36px 20px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-lg);
  transition:all var(--transition);
}
.stat-card:hover{
  background:rgba(255,255,255,.08);
  transform:translateY(-6px);
}
.stat-card .stat-icon{
  font-size:28px;
  color:var(--accent);
  margin-bottom:14px;
}
.stat-card .stat-num{
  font-size:42px;
  font-weight:900;
  color:#fff;
  line-height:1.1;
  letter-spacing:-1px;
  margin-bottom:8px;
}
.stat-card .stat-label{
  font-size:14px;
  color:rgba(255,255,255,.6);
}

/* Process */
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  counter-reset:step;
}
.process-item{
  position:relative;
  text-align:center;
  padding:34px 22px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  transition:all var(--transition);
}
.process-item:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.process-step{
  width:52px;height:52px;
  margin:0 auto 18px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#0a1633;
  font-weight:900;
  font-size:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 8px 24px rgba(246,181,68,.35);
}
.process-item h3{font-size:17px;font-weight:700;margin-bottom:10px}
.process-item p{font-size:14px;color:var(--text-muted);margin:0;line-height:1.7}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:16px;
  overflow:hidden;
  transition:box-shadow var(--transition),border-color var(--transition);
}
.faq-item.active{box-shadow:var(--shadow-md);border-color:rgba(246,181,68,.4)}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  text-align:left;
  padding:22px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--text-main);
  background:transparent;
  transition:background .3s;
  gap:16px;
}
.faq-question:hover{background:rgba(246,181,68,.04)}
.faq-question i{
  color:var(--accent);
  font-size:14px;
  transition:transform .35s;
  flex-shrink:0;
}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
  background:var(--white);
}
.faq-answer-content{
  padding:0 26px 22px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.8;
}
.faq-item.active .faq-answer{max-height:500px}

/* CTA Section */
.cta-section{
  position:relative;
  padding:100px 0;
  background:var(--bg-deep);
  overflow:hidden;
}
.cta-section .cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  opacity:.35;
}
.cta-section .cta-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,17,36,.9) 0%,rgba(10,22,51,.65) 100%);
}
.cta-box{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:640px;
  margin:0 auto;
  padding:60px 40px;
}
.cta-box h2{
  font-size:clamp(30px,4vw,44px);
  font-weight:900;
  color:#fff;
  margin-bottom:16px;
  line-height:1.3;
}
.cta-box p{
  font-size:17px;
  color:rgba(255,255,255,.7);
  margin-bottom:34px;
}

/* Footer */
.site-footer{
  background:var(--primary);
  color:rgba(255,255,255,.6);
  padding:70px 0 0;
}
.footer-top{
  padding-bottom:46px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer-brand .brand-logo{margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  max-width:280px;
  margin-bottom:22px;
  color:rgba(255,255,255,.55);
}
.footer-social{
  display:flex;
  gap:12px;
}
.footer-social a{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.7);
  font-size:15px;
  transition:all .3s;
}
.footer-social a:hover{background:var(--accent);color:#0a1633;transform:translateY(-3px)}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:20px;
  margin-top:8px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  font-size:14px;
  color:rgba(255,255,255,.55);
  transition:color .3s,padding-left .3s;
}
.footer-col ul li a:hover{
  color:var(--accent);
  padding-left:5px;
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:14px;
  color:rgba(255,255,255,.55);
  margin-bottom:14px;
}
.footer-contact i{color:var(--accent);width:18px;text-align:center}
.footer-bottom{
  padding:22px 0;
  font-size:13px;
  text-align:center;
  color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--accent)}

/* Utility */
.mb-0{margin-bottom:0}
.mt-1{margin-top:8px}
.mt-2{margin-top:16px}
.mt-3{margin-top:24px}
.mb-3{margin-bottom:24px}
.ta-center{text-align:center}

/* Responsive */
@media screen and (max-width:1024px){
  .section{padding:80px 0}
  .hero{padding:130px 0 70px}
  .cover-cards{grid-template-columns:repeat(2,1fr);gap:22px}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stats-wrap{grid-template-columns:repeat(2,1fr);gap:22px}
  .hero-metrics{display:none}
}
@media screen and (max-width:768px){
  .site-nav{
    position:fixed;
    top:76px;left:0;right:0;
    background:rgba(10,22,51,.98);
    backdrop-filter:blur(16px);
    flex-direction:column;
    align-items:stretch;
    padding:20px 24px 28px;
    max-height:0;
    overflow:hidden;
    opacity:0;
    transition:max-height .4s ease,opacity .3s ease;
    border-bottom:1px solid rgba(255,255,255,.1);
    box-shadow:0 20px 40px rgba(0,0,0,.3);
  }
  .site-nav.open{max-height:480px;opacity:1;overflow-y:auto}
  .nav-list{flex-direction:column;gap:4px}
  .nav-link{justify-content:flex-start;width:100%;padding:13px 16px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .mega-panel{
    position:static;
    transform:none;
    width:100%;
    box-shadow:none;
    opacity:1;
    visibility:visible;
    max-height:0;
    padding:0;
    overflow:hidden;
    margin-top:0;
    border:none;
    border-radius:0;
    background:transparent;
    transition:max-height .35s ease;
  }
  .has-mega.open-mega .mega-panel{
    max-height:400px;
    padding:16px 0 8px;
  }
  .has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{
    transform:none;
  }
  .mega-inner{flex-direction:column;gap:12px}
  .mega-card{min-height:100px}
  .mega-card p{min-height:100px}
  .mega-col h4{color:rgba(255,255,255,.6);font-size:12px}
  .mega-col ul li a{color:rgba(255,255,255,.8);padding:8px 10px;font-size:14px}
  .mega-col ul li a:hover{background:rgba(246,181,68,.1);color:var(--accent)}
  .hero h1{font-size:34px}
  .hero-lead{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr;gap:10px}
  .hero-stat{display:flex;align-items:center;gap:14px;padding:14px 18px}
  .hero-stat .num{font-size:22px}
  .hero-stat .label{margin-top:0}
  .section{padding:64px 0}
  .news-grid{grid-template-columns:1fr}
  .news-feature{min-height:300px}
  .cover-cards{grid-template-columns:1fr}
  .stats-wrap{grid-template-columns:1fr 1fr;gap:14px}
  .stat-card{padding:26px 14px}
  .stat-card .stat-num{font-size:30px}
  .process-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-box{padding:30px 20px}
  .btn-lg{width:100%}
  .section-header{margin-bottom:40px}
}
@media screen and (max-width:520px){
  .container,.grid-container{padding-left:16px;padding-right:16px}
  .brand-logo{font-size:19px}
  .brand-sub{font-size:10px}
  .hero{padding:120px 0 50px}
  .hero h1{font-size:28px}
  .hero-badge{font-size:12px}
  .hero-actions{margin-bottom:36px}
  .stats-wrap{grid-template-columns:1fr}
  .stat-card .stat-num{font-size:36px}
  .news-list-item{flex-direction:column;align-items:flex-start;gap:8px}
  .section{padding:52px 0}
  .cover-card-img{height:160px}
  .faq-question{font-size:15px;padding:18px}
  .faq-answer-content{padding:0 18px 18px}
  .footer-grid{gap:28px}
}

/* roulang page: category1 */
/* ===== 1. Design Tokens ===== */
:root {
  --primary: #0a1628;
  --primary-light: #132742;
  --primary-lighter: #223654;
  --accent: #f0b429;
  --accent-dark: #c99216;
  --accent-soft: rgba(240, 180, 41, .12);
  --bg: #f4f6fa;
  --bg-white: #ffffff;
  --text: #182336;
  --text-muted: #637187;
  --border: #e2e7f0;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 2px 10px rgba(16, 24, 40, .05);
  --shadow-md: 0 10px 30px rgba(16, 24, 40, .08);
  --shadow-lg: 0 24px 60px rgba(16, 24, 40, .12);
  --space-section: 90px;
  --space-section-sm: 60px;
  --transition: all .28s ease;
}

/* ===== 2. Base Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}
body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--accent-dark);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .5em;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
}
p {
  margin: 0 0 1em;
}
strong {
  font-weight: 700;
}

/* ===== 3. Layout ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.section {
  padding: var(--space-section) 0;
}
.section-sm {
  padding: var(--space-section-sm) 0;
}
.section-white {
  background: var(--bg-white);
}
.section-head {
  max-width: 760px;
  margin-bottom: 50px;
}
.section-head .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 30px;
  letter-spacing: .6px;
  margin-bottom: 16px;
}
.section-head .section-tag i {
  font-size: 12px;
}
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  margin-bottom: 14px;
  letter-spacing: -.5px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 0;
}

/* ===== 4. Buttons & Badges ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  line-height: 1;
  padding: 14px 26px;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn i {
  font-size: .9em;
}
.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
  border-radius: 14px;
}
.btn-sm {
  padding: 9px 18px;
  font-size: 13px;
  border-radius: 9px;
}
.btn-accent {
  background: var(--accent);
  color: var(--primary);
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(240, 180, 41, .35);
}
.btn-outline-dark {
  background: transparent;
  border: 1.5px solid rgba(10, 22, 40, .2);
  color: var(--primary);
}
.btn-outline-dark:hover {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255, 255, 255, .08);
  border: 1.5px solid rgba(255, 255, 255, .35);
  color: #fff;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .16);
  border-color: rgba(255, 255, 255, .7);
  color: #fff;
  transform: translateY(-2px);
}
.btn-xl {
  padding: 18px 38px;
  font-size: 17px;
  border-radius: 16px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: .4px;
}
.badge-success {
  background: rgba(16, 185, 129, .12);
  color: #0f9d6e;
}
.badge-dark {
  background: rgba(10, 22, 40, .08);
  color: var(--primary);
}

/* ===== 5. Site Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(226, 231, 240, .9);
  transition: box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(16, 24, 40, .08);
  background: rgba(255, 255, 255, .96);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
  position: relative;
}
.brand {
  flex-shrink: 0;
}
.brand-logo {
  font-size: 24px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  letter-spacing: -.5px;
}
.brand-logo em {
  font-style: normal;
  color: var(--accent-dark);
}
.brand-sub {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  margin-top: 3px;
}
.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-list > li {
  position: relative;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  position: relative;
  transition: var(--transition);
}
.nav-link:hover {
  background: var(--accent-soft);
  color: var(--primary);
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
}
.nav-link i {
  font-size: 11px;
  opacity: .7;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-white);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: var(--transition);
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
  transition: var(--transition);
}
.nav-toggle:hover {
  border-color: var(--accent);
}
.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);
}

/* Mega Menu */
.has-mega {
  position: static;
}
.mega-panel {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(14px);
  width: 680px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
  z-index: 150;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel,
.has-mega.open .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.mega-inner {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 32px;
}
.mega-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 800;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.mega-col ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mega-col ul a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.mega-col ul a:hover {
  background: var(--accent-soft);
  color: var(--primary);
  padding-left: 16px;
}
.mega-col ul a::before {
  content: "\f054";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 10px;
  color: var(--accent-dark);
}
.mega-card {
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  background: var(--primary);
  padding: 14px;
}
.mega-card img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 12px;
}
.mega-card p {
  font-size: 13px;
  color: rgba(255, 255, 255, .85);
  font-weight: 600;
  margin: 0;
  line-height: 1.5;
}

/* ===== 6. Page Hero ===== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(5, 12, 26, .96), rgba(10, 22, 40, .84)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 100px 0 90px;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: 50%;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(240, 180, 41, .18), transparent 65%);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, .6);
}
.breadcrumb a {
  color: rgba(255, 255, 255, .75);
  font-weight: 500;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb i {
  font-size: 11px;
  opacity: .6;
}
.hero-content {
  max-width: 760px;
  margin-bottom: 56px;
  position: relative;
  z-index: 2;
}
.hero-content h1 {
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-content h1 span {
  color: var(--accent);
}
.hero-lead {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 36px;
  max-width: 640px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 880px;
}
.stat-card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.stat-card:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(240, 180, 41, .5);
  transform: translateY(-4px);
}
.stat-card strong {
  display: block;
  font-size: 38px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -.5px;
}
.stat-card span {
  font-size: 13px;
  color: rgba(255, 255, 255, .65);
  font-weight: 500;
  letter-spacing: .5px;
}

/* ===== 7. Quick Guide Cards ===== */
.quick-guide {
  position: relative;
}
.card-grid {
  display: grid;
  gap: 24px;
}
.card-grid.four {
  grid-template-columns: repeat(4, 1fr);
}
.card-grid.three {
  grid-template-columns: repeat(3, 1fr);
}
.card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 30px;
  transition: var(--transition);
  position: relative;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: rgba(240, 180, 41, .4);
}
.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 22px;
  margin-bottom: 20px;
}
.card .badge {
  position: absolute;
  top: 24px;
  right: 24px;
}
.card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin: 0;
}
.card-feature {
  min-height: 270px;
}

/* ===== 8. Step Guide ===== */
.step-guide {
  background: var(--bg-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.step-layout {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: center;
}
.step-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.step-item {
  display: flex;
  gap: 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px;
  transition: var(--transition);
}
.step-item:hover {
  border-color: rgba(240, 180, 41, .5);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.step-num {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary);
  color: var(--accent);
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.step-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.7;
}
.step-media {
  position: relative;
}
.step-media img {
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  width: 100%;
}
.step-media-card {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(12px);
  border-radius: 14px;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.step-media-card i {
  font-size: 22px;
  color: #10b981;
}
.step-media-card strong {
  font-size: 14px;
  color: var(--text);
}
.step-media-card span {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 9. Lineup ===== */
.lineup-section {
  background: var(--bg);
}
.lineup-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.lineup-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 26px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: var(--transition);
}
.lineup-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(240, 180, 41, .45);
  transform: translateY(-3px);
}
.lineup-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-dark);
  font-size: 18px;
  flex-shrink: 0;
}
.lineup-info {
  flex: 1;
  display: flex;
  gap: 14px;
  align-items: center;
  min-width: 0;
}
.lineup-info h3 {
  font-size: 15px;
  margin-bottom: 3px;
  white-space: nowrap;
}
.lineup-info p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lineup-meta {
  text-align: center;
  padding: 0 10px;
  border-left: 1px solid var(--border);
}
.lineup-meta span {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .8px;
}
.lineup-meta strong {
  font-size: 18px;
  color: var(--primary);
}

/* ===== 10. Troubleshoot ===== */
.troubleshoot-section {
  background: var(--primary);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.troubleshoot-section::before {
  content: "";
  position: absolute;
  left: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(240, 180, 41, .12), transparent 65%);
}
.troubleshoot-section .section-head h2 {
  color: #fff;
}
.troubleshoot-section .section-head p {
  color: rgba(255, 255, 255, .65);
}
.troubleshoot-section .section-tag {
  background: rgba(240, 180, 41, .15);
  color: var(--accent);
}
.trouble-layout {
  display: grid;
  grid-template-columns: 1fr .85fr;
  gap: 50px;
  align-items: center;
}
.trouble-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.trouble-item {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 22px 24px;
  display: flex;
  gap: 16px;
  transition: var(--transition);
}
.trouble-item:hover {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(240, 180, 41, .4);
  transform: translateX(4px);
}
.trouble-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(240, 180, 41, .15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.trouble-item h3 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 6px;
}
.trouble-item p {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  line-height: 1.7;
  margin: 0;
}
.trouble-media img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .3);
}

/* ===== 11. FAQ ===== */
.faq-section {
  background: var(--bg-white);
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(240, 180, 41, .45);
}
.faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 26px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  margin-left: auto;
  color: var(--accent-dark);
  transition: var(--transition);
}
.faq-item[open] summary::after {
  transform: rotate(180deg);
}
.faq-item[open] summary {
  border-bottom: 1px solid var(--border);
  background: var(--accent-soft);
}
.faq-item p {
  padding: 20px 26px;
  margin: 0;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== 12. CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(240, 180, 41, .18), transparent 60%);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 2;
}
.cta-inner h2 {
  color: #fff;
  font-size: clamp(22px, 3vw, 32px);
  margin-bottom: 8px;
}
.cta-inner p {
  color: rgba(255, 255, 255, .65);
  margin: 0;
  font-size: 15px;
}

/* ===== 13. Footer ===== */
.site-footer {
  background: #070d18;
  color: rgba(255, 255, 255, .6);
  padding-top: 60px;
  font-size: 14px;
}
.site-footer .footer-top {
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.site-footer .footer-brand {
  max-width: 340px;
}
.site-footer .brand-logo {
  color: #fff;
  font-size: 22px;
}
.site-footer .brand-logo em {
  color: var(--accent);
  font-style: normal;
}
.site-footer .footer-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.site-footer .footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, .12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .7);
  font-size: 14px;
  transition: var(--transition);
}
.site-footer .footer-social a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary);
  transform: translateY(-3px);
}
.site-footer .footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 700;
}
.site-footer .footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.site-footer .footer-col ul a {
  color: rgba(255, 255, 255, .5);
  font-size: 14px;
  transition: var(--transition);
}
.site-footer .footer-col ul a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.site-footer .footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .5);
}
.site-footer .footer-contact li i {
  color: var(--accent);
  font-size: 12px;
  width: 18px;
}
.site-footer .footer-bottom {
  padding: 24px 0;
  text-align: center;
}
.site-footer .footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .35);
}
.site-footer .footer-bottom a {
  color: rgba(255, 255, 255, .55);
}
.site-footer .footer-bottom a:hover {
  color: var(--accent);
}

/* ===== 14. Responsive ===== */
@media (max-width: 1024px) {
  .card-grid.four {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-grid.three {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .step-media {
    max-width: 560px;
  }
  .trouble-layout {
    grid-template-columns: 1fr;
  }
  .trouble-media {
    display: none;
  }
  .lineup-list {
    grid-template-columns: 1fr;
  }
  .mega-panel {
    width: 560px;
  }
  .site-footer .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    display: none;
    position: fixed;
    top: 92px;
    left: 20px;
    right: 20px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 22px;
    z-index: 200;
  }
  .site-nav.open {
    display: block;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 14px 16px;
  }
  .nav-link i {
    margin-left: auto;
  }
  .mega-panel {
    position: static;
    width: 100%;
    transform: none;
    opacity: 1;
    visibility: visible;
    display: none;
    box-shadow: none;
    border: none;
    border-top: 1px solid var(--border);
    border-radius: 0;
    padding: 18px 0 10px;
  }
  .has-mega.open .mega-panel {
    display: block;
  }
  .mega-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .mega-card {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-hero {
    padding: 80px 0 60px;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .section-head {
    margin-bottom: 36px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .card-grid.four,
  .card-grid.three {
    grid-template-columns: 1fr;
  }
  .card-feature {
    min-height: auto;
  }
  .hero-content h1 {
    font-size: 32px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .step-media-card {
    white-space: normal;
    bottom: 14px;
    left: 14px;
    right: 14px;
    transform: none;
    justify-content: center;
    padding: 14px;
  }
  .lineup-item {
    flex-wrap: wrap;
    padding: 20px;
  }
  .lineup-info {
    flex-basis: calc(100% - 70px);
  }
  .lineup-meta {
    border-left: none;
    padding: 0;
  }
  .lineup-item .badge {
    order: 5;
  }
  .site-footer .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .cta-section {
    padding: 50px 0;
  }
}

@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat-card {
    padding: 18px 12px;
  }
  .stat-card strong {
    font-size: 30px;
  }
  .step-item {
    flex-direction: column;
    gap: 12px;
  }
  .step-num {
    width: 40px;
    height: 40px;
    font-size: 17px;
  }
  .faq-item summary {
    font-size: 15px;
    padding: 18px 20px;
  }
  .faq-item p {
    padding: 16px 20px;
  }
  .lineup-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .lineup-info {
    flex-basis: auto;
  }
  .lineup-meta {
    border-left: none;
    padding-left: 0;
  }
  .site-header .nav-inner {
    height: 68px;
  }
  .brand-sub {
    font-size: 10px;
  }
  .brand-logo {
    font-size: 20px;
  }
}

/* roulang page: article */
:root{
  --primary:#0f2b4a;
  --primary-light:#1c3f66;
  --primary-soft:#e8f0fa;
  --accent:#f7b733;
  --accent-2:#fc4a1a;
  --bg:#f3f6fb;
  --surface:#ffffff;
  --text:#172a3d;
  --muted:#64748b;
  --border:#e2e8f0;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 2px 10px rgba(15,43,74,.06);
  --shadow-md:0 10px 30px rgba(15,43,74,.10);
  --shadow-lg:0 20px 50px rgba(15,43,74,.15);
  --trans:.3s ease;
  --section-pad:80px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--trans)}
a:hover{color:var(--accent-2)}
ul,ol{list-style:none}
button{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{flex:none;display:flex;align-items:center}
.brand-logo{font-size:24px;font-weight:800;color:var(--primary);display:inline-flex;align-items:baseline;gap:2px;letter-spacing:-.5px;line-height:1}
.brand-logo em{font-style:normal;color:var(--accent-2)}
.brand-sub{font-size:11px;color:var(--muted);margin-left:8px;font-weight:400;letter-spacing:.5px}
.site-nav{flex:1;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:40px;font-size:14px;font-weight:600;color:var(--text);transition:var(--trans);white-space:nowrap}
.nav-link i{font-size:11px;transition:transform var(--trans)}
.nav-link:hover{background:var(--primary-soft);color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(15,43,74,.25)}
.has-mega{position:relative}
.mega-panel{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(10px);width:540px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:24px;opacity:0;visibility:hidden;transition:var(--trans);border:1px solid var(--border);z-index:50}
.has-mega:hover .mega-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(4px)}
.mega-inner{display:flex;gap:24px}
.mega-col{flex:1}
.mega-col h4{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:12px;letter-spacing:.5px}
.mega-col ul{margin:0;padding:0}
.mega-col li{margin-bottom:9px}
.mega-col a{font-size:13px;color:var(--muted);transition:var(--trans)}
.mega-col a:hover{color:var(--accent-2);padding-left:3px}
.mega-card{width:190px;flex:none}
.mega-card img{border-radius:12px;height:110px;width:100%;object-fit:cover}
.mega-card p{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.5}
.nav-actions{flex:none;display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:40px;font-weight:600;transition:var(--trans);cursor:pointer;line-height:1.4;gap:8px}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 4px 16px rgba(252,74,26,.28)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(252,74,26,.35);color:#fff}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(15,43,74,.25)}
.btn-primary:hover{background:var(--primary-light);transform:translateY(-2px);color:#fff;box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-sm{font-size:13px;padding:9px 20px}
.btn-md{font-size:14px;padding:13px 30px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:var(--trans)}
.article-banner{background:linear-gradient(135deg,rgba(15,43,74,.93),rgba(28,63,102,.78)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:76px 0 64px;text-align:center;color:#fff;position:relative;overflow:hidden}
.article-banner::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:32px;background:var(--bg);border-radius:50% 50% 0 0}
.article-banner .article-category{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);padding:6px 18px;border-radius:30px;font-size:12px;font-weight:600;letter-spacing:2px;margin-bottom:18px;text-transform:uppercase}
.article-banner h1{font-size:36px;font-weight:800;line-height:1.4;max-width:820px;margin:0 auto;word-break:break-word}
.article-banner .banner-meta{display:flex;justify-content:center;gap:22px;color:rgba(255,255,255,.75);font-size:13px;margin-top:18px;flex-wrap:wrap}
.article-banner .banner-meta span{display:inline-flex;align-items:center;gap:6px}
.article-main{padding:60px 0 80px}
.article-card{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:44px;border:1px solid var(--border);position:relative}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-2)}
.breadcrumb i{font-size:10px;color:#c0c9d4}
.breadcrumb span{color:var(--text);font-weight:600;max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding-bottom:20px;margin-bottom:26px;border-bottom:1px solid var(--border)}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.meta-item i{color:var(--accent-2);font-size:14px}
.article-body{font-size:15px;line-height:1.9;color:#2d4055;word-wrap:break-word}
.article-body h2,.article-body h3,.article-body h4{color:var(--primary);margin-top:32px;margin-bottom:14px;line-height:1.4;font-weight:700}
.article-body h2{font-size:24px}
.article-body h3{font-size:20px}
.article-body h4{font-size:17px}
.article-body p{margin-bottom:18px}
.article-body ul,.article-body ol{margin:0 0 20px 20px;padding:0}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--accent-2);font-weight:600;border-bottom:1px solid transparent}
.article-body a:hover{border-bottom-color:var(--accent-2)}
.article-body blockquote{padding:18px 22px;background:var(--primary-soft);border-left:4px solid var(--accent);border-radius:10px;margin:24px 0;font-style:normal}
.article-body blockquote p{margin-bottom:0}
.article-body img{border-radius:12px;margin:20px 0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-body th{background:var(--primary-soft);color:var(--primary);font-weight:600}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;padding-top:22px;border-top:1px solid var(--border)}
.tag-item{background:#f1f5f9;color:var(--muted);padding:5px 14px;border-radius:20px;font-size:13px;transition:var(--trans)}
.tag-item:hover{background:var(--primary);color:#fff}
.article-empty{text-align:center;padding:70px 20px}
.article-empty i{font-size:52px;color:var(--accent);margin-bottom:16px;display:block}
.article-empty h3{font-size:26px;color:var(--primary);margin-bottom:10px}
.article-empty p{color:var(--muted);margin-bottom:24px}
.article-empty .btn{min-width:140px}
.article-footer-btns{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.sidebar-widget{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:24px;margin-bottom:24px;border:1px solid var(--border)}
.widget-title{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:18px;position:relative;padding-left:14px;line-height:1.4}
.widget-title::before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--accent),var(--accent-2))}
.sidebar-intro{font-size:13px;color:var(--muted);line-height:1.8}
.post-list{margin:0;padding:0}
.post-list li{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px dashed var(--border)}
.post-list li:last-child{border-bottom:0}
.post-list .num{flex:none;width:26px;height:26px;border-radius:8px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.post-list a{font-size:14px;line-height:1.6;color:var(--text);display:block}
.post-list a:hover{color:var(--accent-2)}
.sidebar-contact{margin:0;padding:0}
.sidebar-contact li{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:13px;color:var(--muted)}
.sidebar-contact li i{color:var(--accent-2);width:18px;text-align:center}
.related-section{padding:70px 0;background:var(--bg)}
.section-head{text-align:center;margin-bottom:42px}
.section-head h2{font-size:30px;font-weight:800;color:var(--primary);margin-bottom:10px;letter-spacing:-.5px}
.section-head p{color:var(--muted);font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.related-card{background:var(--surface);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--trans);box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.related-card .cover{height:190px;overflow:hidden;position:relative}
.related-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .cover img{transform:scale(1.06)}
.related-card .cover .tag-tip{position:absolute;left:14px;top:14px;background:rgba(15,43,74,.82);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px;backdrop-filter:blur(4px)}
.related-card .info{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.related-card .info h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px}
.related-card .info h3 a{color:var(--text)}
.related-card .info h3 a:hover{color:var(--accent-2)}
.related-card .info .desc{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .info .meta{font-size:12px;color:#a0aec0;margin-top:auto;display:flex;gap:14px}
.related-card .info .meta i{margin-right:4px}
.faq-section{padding:70px 0;background:var(--surface)}
.faq-list{max-width:830px;margin:0 auto}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:var(--trans)}
.faq-item:hover{border-color:#cbd5e1}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:15px;color:var(--text);display:flex;align-items:center;gap:12px;list-style:none;transition:var(--trans)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;margin-left:auto;color:var(--accent-2);transition:transform .3s;font-size:14px}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-content{padding:0 22px 20px;color:var(--muted);font-size:14px;line-height:1.85}
.cta-section{background:linear-gradient(120deg,rgba(15,43,74,.94),rgba(28,63,102,.85)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;padding:76px 0;text-align:center;color:#fff;position:relative}
.cta-section h2{font-size:32px;font-weight:800;margin-bottom:16px;letter-spacing:-.5px}
.cta-section p{color:rgba(255,255,255,.7);max-width:560px;margin:0 auto 30px;font-size:15px;line-height:1.8}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--primary);border-color:#fff;transform:translateY(-2px)}
.site-footer{background:#0a1c2f;color:rgba(255,255,255,.65);padding:60px 0 0}
.footer-top{border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:36px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{max-width:340px;font-size:13px;line-height:1.8;color:rgba(255,255,255,.5)}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);transition:var(--trans)}
.footer-social a:hover{background:var(--accent);color:#0a1c2f;transform:translateY(-2px)}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-col ul{margin:0;padding:0}
.footer-col li{margin-bottom:10px;font-size:13px}
.footer-col a{color:rgba(255,255,255,.5);font-size:14px;transition:var(--trans)}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--accent);width:16px;text-align:center}
.footer-bottom{text-align:center;padding:22px 0;color:rgba(255,255,255,.35);font-size:13px}
.footer-bottom a{color:rgba(255,255,255,.4)}
.footer-bottom a:hover{color:var(--accent)}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  :root{--section-pad:50px}
  .grid-container,.container{padding:0 20px}
  .nav-toggle{display:flex}
  .site-nav{position:fixed;top:70px;left:0;right:0;bottom:0;background:#fff;padding:24px 20px;justify-content:flex-start;transform:translateX(100%);transition:transform .35s ease;overflow-y:auto;box-shadow:var(--shadow-lg);z-index:99}
  .site-nav.open{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:8px;width:100%}
  .nav-link{justify-content:space-between;padding:12px 16px;border-radius:12px}
  .mega-panel{position:static;opacity:1;visibility:visible;transform:none;width:100%;box-shadow:none;border:0;padding:0;margin-top:8px}
  .has-mega:hover .mega-panel{transform:none}
  .mega-inner{flex-direction:column}
  .mega-card{width:100%;margin-top:10px}
  .mega-card img{height:90px}
  .article-banner{padding:56px 0 50px}
  .article-banner h1{font-size:26px}
  .article-main{padding:40px 0 60px}
  .article-card{padding:24px}
  .breadcrumb span{max-width:140px}
  .article-meta{gap:12px}
  .sidebar-widget{padding:20px}
  .related-grid{grid-template-columns:1fr}
  .cta-section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{font-size:12px}
}
@media(max-width:520px){
  .nav-inner{padding:0 16px;height:64px}
  .brand-sub{display:none}
  .brand-logo{font-size:20px}
  .nav-cta{display:none}
  .site-nav{top:64px}
  .article-banner h1{font-size:22px}
  .banner-meta{gap:10px}
  .related-card .cover{height:160px}
  .cta-buttons{flex-direction:column;align-items:center}
  .cta-buttons .btn{width:100%;max-width:260px}
}