/* roulang page: index */
:root{
  --bg-primary:#0B1519;
  --bg-secondary:#122127;
  --accent:#00D27F;
  --accent-hover:#33DF9C;
  --gold:#FFC74A;
  --text-primary:#F1F5F2;
  --text-muted:#A7B3AD;
  --border-color:#263238;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-default:0 4px 20px rgba(0,0,0,0.35);
  --shadow-hover:0 8px 30px rgba(0,210,127,0.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s;}
button,input,select{font-family:inherit;}
section{position:relative;}
.tabular-nums{font-variant-numeric:tabular-nums;}

.container{max-width:1280px;margin:0 auto;padding:0 40px;}
@media(max-width:1023px){.container{padding:0 24px;}}
@media(max-width:767px){.container{padding:0 16px;}}

.section{padding-top:96px;padding-bottom:96px;}
@media(max-width:767px){.section{padding-top:64px;padding-bottom:64px;}}

.section-head{margin-bottom:56px;}
.section-head.slim{margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--accent);font-size:.875rem;font-weight:600;
  letter-spacing:.05em;margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";display:inline-block;width:18px;height:2px;
  background:var(--accent);border-radius:2px;
}
.section-head h2{
  font-size:clamp(1.35rem,2.6vw,2rem);
  font-weight:800;line-height:1.2;color:var(--text-primary);
  margin-bottom:10px;
}
.section-head p{color:var(--text-muted);font-size:.975rem;max-width:640px;}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,21,25,0.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{
  width:36px;height:36px;border-radius:10px;background:var(--accent);
  display:flex;align-items:center;justify-content:center;color:var(--bg-primary);
  font-size:1.1rem;font-weight:900;
  box-shadow:0 0 16px rgba(0,210,127,0.3);
}
.brand-text{font-size:1.15rem;font-weight:800;color:var(--text-primary);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:8px;
  font-size:.925rem;font-weight:500;color:var(--text-muted);
  position:relative;transition:color .2s;
  white-space:nowrap;
}
.nav-link i{font-size:.8rem;opacity:.7;}
.nav-link:hover{color:var(--accent);}
.nav-link.active{color:var(--text-primary);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;bottom:-2px;left:14px;right:14px;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:var(--bg-secondary);border:1px solid var(--border-color);
  border-radius:999px;padding:6px 14px;width:200px;
  transition:border-color .2s;
}
.search-box:focus-within{border-color:var(--accent);}
.search-box i{color:var(--text-muted);font-size:.85rem;flex-shrink:0;}
.search-box input{
  background:transparent;border:none;outline:none;color:var(--text-primary);
  font-size:.875rem;width:100%;
}
.search-box input::placeholder{color:#5C6A64;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;border:none;cursor:pointer;font-weight:600;
  border-radius:var(--radius-sm);transition:all .2s ease;
  text-decoration:none;line-height:1.2;
}
.btn-primary{
  background:var(--accent);color:var(--bg-primary);
  padding:12px 26px;font-size:.95rem;
}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,210,127,0.25);}
.btn-primary:active{transform:scale(0.96);}
.btn-outline{
  background:transparent;border:1px solid var(--border-color);color:var(--text-primary);
  padding:10px 22px;font-size:.9rem;
}
.btn-outline:hover{border-color:var(--accent);background:rgba(0,210,127,0.08);}
.btn-dark{
  background:var(--bg-primary);color:var(--accent);
  padding:12px 28px;font-size:.95rem;
}
.btn-dark:hover{background:var(--bg-secondary);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:.85rem;}
.btn-header{
  background:var(--accent);color:var(--bg-primary);
  padding:9px 18px;font-size:.875rem;font-weight:700;
}
.btn-header:hover{background:var(--accent-hover);transform:translateY(-1px);}
.mobile-toggle{
  display:none;background:none;border:none;color:var(--text-primary);
  font-size:1.4rem;cursor:pointer;padding:4px;
}

/* Countdown bar */
.countdown-bar{
  margin-top:74px;
  background:var(--bg-primary);
  border-bottom:1px solid rgba(255,255,255,0.04);
  border-top:2px solid var(--accent);
  padding:14px 0;
}
.countdown-inner{display:flex;align-items:center;gap:20px;flex-wrap:nowrap;}
.cd-label{font-size:.9rem;color:var(--text-primary);font-weight:600;flex-shrink:0;}
.cd-time{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.cd-num{
  font-variant-numeric:tabular-nums;
  background:var(--bg-secondary);color:var(--gold);
  font-weight:700;font-size:1.05rem;padding:4px 10px;
  border-radius:8px;letter-spacing:.02em;
  font-family:"PingFang SC","Microsoft YaHei",monospace;
}
.cd-sep{color:var(--text-muted);font-weight:700;font-size:1rem;}
.cd-note{color:var(--text-muted);font-size:.85rem;flex-shrink:0;margin-left:auto;}

/* Hero */
.hero{
  padding-top:120px;padding-bottom:96px;
  background:
    radial-gradient(ellipse 60% 70% at 15% 20%,rgba(0,210,127,0.08) 0%,transparent 70%),
    radial-gradient(ellipse 40% 50% at 85% 80%,rgba(0,210,127,0.04) 0%,transparent 60%),
    var(--bg-primary);
}
.hero-inner{display:flex;align-items:center;gap:64px;}
.hero-content{flex:1 1 54%;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,210,127,0.1);border:1px solid rgba(0,210,127,0.3);
  color:var(--accent);font-size:.8rem;font-weight:600;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero-tag i{font-size:.75rem;}
.hero h1{
  font-size:clamp(1.9rem,4vw,3.2rem);
  font-weight:900;line-height:1.15;letter-spacing:-.01em;
  color:var(--text-primary);margin-bottom:24px;
}
.hero h1 .highlight{color:var(--accent);}
.hero-sub{
  color:var(--text-muted);font-size:1.05rem;line-height:1.75;
  max-width:520px;margin-bottom:36px;
}
.hero-btns{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.hero-facts{
  display:flex;gap:32px;margin-top:52px;
  border-top:1px solid var(--border-color);padding-top:28px;
}
.hero-fact .fact-num{
  font-size:1.35rem;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;display:block;
}
.hero-fact .fact-label{font-size:.82rem;color:var(--text-muted);}
.hero-visual{flex:1 1 46%;position:relative;}
.hero-img{
  border-radius:18px;overflow:hidden;position:relative;
  box-shadow:var(--shadow-default);
}
.hero-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,210,127,0.15) 0%,transparent 45%);
  pointer-events:none;
}
.hero-img::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(0,210,127,0.08) 1px,transparent 1px),
  linear-gradient(90deg,rgba(0,210,127,0.08) 1px,transparent 1px);
  background-size:28px 28px;
  pointer-events:none;z-index:1;
}
.hero-badge{
  position:absolute;bottom:18px;left:18px;z-index:2;
  display:flex;align-items:center;gap:10px;
  background:rgba(11,21,25,0.9);border:1px solid rgba(0,210,127,0.25);
  border-radius:12px;padding:10px 16px;
}
.hero-badge i{color:var(--gold);font-size:.9rem;}
.hero-badge span{color:var(--text-primary);font-size:.85rem;font-weight:600;}

/* Feature section */
.feature-section{background:var(--bg-primary);}
.feature-list{
  display:grid;grid-template-columns:repeat(3,1fr);gap:48px;
  border-bottom:1px solid var(--border-color);
}
.feature-item{
  position:relative;padding:24px 0 32px;
  padding-left:24px;
}
.feature-item::before{
  content:"";position:absolute;left:0;top:0;width:1px;height:100%;
  background:var(--border-color);
}
.feature-item::after{
  content:"";position:absolute;left:0;top:0;width:4px;height:4px;
  background:var(--accent);border-radius:50%;transform:translateX(-2px);
}
.feature-num{
  font-size:2.8rem;font-weight:900;color:var(--accent);
  line-height:1;font-variant-numeric:tabular-nums;
  display:block;margin-bottom:18px;transition:transform .3s;
}
.feature-item:hover .feature-num{transform:translateX(4px);}
.feature-item h3{font-size:1.1rem;font-weight:700;margin-bottom:10px;color:var(--text-primary);}
.feature-item p{color:var(--text-muted);font-size:.925rem;line-height:1.7;}

/* Mosaic */
.mosaic-section{background:var(--bg-secondary);}
.mosaic-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  grid-auto-rows:200px;gap:16px;
}
.mosaic-item{
  position:relative;border-radius:12px;overflow:hidden;
  cursor:pointer;
}
.mosaic-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.mosaic-item:hover img{transform:scale(1.04);}
.mosaic-overlay{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:18px;background:linear-gradient(to top,rgba(0,0,0,0.75) 0%,transparent 55%);
  opacity:0;transition:opacity .3s;
}
.mosaic-item:hover .mosaic-overlay{opacity:1;}
.mosaic-overlay .mosaic-cat{
  font-size:.72rem;font-weight:600;color:var(--gold);
  margin-bottom:6px;
}
.mosaic-overlay h3{
  font-size:1rem;font-weight:700;color:var(--text-primary);line-height:1.4;
}
.mosaic-large{grid-column:span 2;grid-row:span 2;}

/* CTA */
.cta-section{
  background:var(--accent);
  padding:76px 0;
}
.cta-inner{
  display:flex;align-items:center;gap:48px;
  justify-content:space-between;
}
.cta-copy h2{
  font-size:clamp(1.35rem,2.6vw,2rem);font-weight:800;
  color:var(--bg-primary);line-height:1.2;margin-bottom:10px;
}
.cta-copy p{color:rgba(11,21,25,0.75);font-size:.95rem;max-width:420px;}
.cta-form{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  width:100%;max-width:440px;
}
.cta-form input{
  flex:1;background:var(--bg-primary);border:none;
  border-radius:10px;padding:14px 18px;color:var(--text-primary);
  font-size:.925rem;outline:none;min-width:0;
}
.cta-form input::placeholder{color:var(--text-muted);}
.cta-form input:focus{box-shadow:0 0 0 3px rgba(11,21,25,0.3);}
.cta-form .btn-dark{flex-shrink:0;padding:14px 28px;}
.cta-hint{font-size:.78rem;color:rgba(11,21,25,0.6);margin-top:10px;}

/* FAQ */
.faq-section{background:var(--bg-primary);}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px;}
.faq-item{
  background:var(--bg-secondary);border:1px solid var(--border-color);
  border-radius:var(--radius-md);overflow:hidden;
  transition:border-color .25s;
}
.faq-item:hover{border-color:rgba(0,210,127,0.5);}
.faq-item.open{border-color:rgba(0,210,127,0.6);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:16px 20px;cursor:pointer;user-select:none;
}
.faq-q h3{font-size:1rem;font-weight:600;color:var(--text-primary);line-height:1.45;}
.faq-icon{
  width:28px;height:28px;border-radius:50%;
  background:rgba(0,210,127,0.1);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:.9rem;flex-shrink:0;transition:transform .3s;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:var(--bg-primary);}
.faq-a{
  display:none;padding:0 20px 18px;color:var(--text-muted);
  font-size:.925rem;line-height:1.7;
}
.faq-item.open .faq-a{display:block;}

/* News */
.news-section{background:var(--bg-secondary);}
.news-divider{
  height:1px;background:var(--border-color);margin-bottom:36px;
  position:relative;
}
.news-divider::after{
  content:"";position:absolute;left:0;top:-1px;width:80px;height:2px;
  background:var(--accent);
}
.news-list{
  display:flex;flex-direction:column;
  background:var(--bg-primary);
  border:1px solid var(--border-color);
  border-radius:var(--radius-lg);overflow:hidden;
}
.news-card{
  display:flex;align-items:center;gap:24px;
  padding:20px 24px;
  border-bottom:1px solid var(--border-color);
  transition:background .2s;
}
.news-card:last-child{border-bottom:none;}
.news-card:hover{background:rgba(0,210,127,0.03);}
.news-card-cat{
  flex-shrink:0;display:inline-flex;align-items:center;
  border:1px solid rgba(255,199,74,0.5);color:var(--gold);
  border-radius:999px;padding:3px 12px;font-size:.75rem;
  font-weight:600;white-space:nowrap;
}
.news-card-main{flex:1;min-width:0;}
.news-card-title{
  font-size:1rem;font-weight:700;color:var(--text-primary);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px;
}
.news-card-excerpt{
  color:var(--text-muted);font-size:.875rem;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card-meta{
  flex-shrink:0;display:flex;align-items:center;gap:18px;
}
.news-date{color:var(--text-muted);font-size:.8rem;font-variant-numeric:tabular-nums;}
.news-link{
  color:var(--accent);font-size:.85rem;font-weight:600;
  white-space:nowrap;
}
.news-link i{transition:transform .2s;}
.news-card:hover .news-link i{transform:translateX(4px);}
.empty-state{
  border:1px dashed var(--text-muted);border-radius:var(--radius-lg);
  padding:60px 20px;text-align:center;color:var(--text-muted);
  background:var(--bg-primary);font-size:.95rem;
}

/* Footer */
.site-footer{background:var(--bg-primary);border-top:1px solid var(--border-color);}
.footer-grid{
  display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:48px;
  padding-top:72px;padding-bottom:56px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand-text{
  color:var(--text-muted);font-size:.9rem;line-height:1.7;max-width:260px;
}
.footer-col h4{
  font-size:.95rem;font-weight:700;color:var(--text-primary);
  margin-bottom:18px;position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;
  background:var(--accent);
}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  color:var(--text-muted);font-size:.875rem;transition:color .2s;
}
.footer-links a:hover{color:var(--accent);}
.footer-service li{
  color:var(--text-muted);font-size:.86rem;display:flex;gap:8px;
  margin-bottom:10px;
}
.footer-service i{color:var(--accent);font-size:.8rem;margin-top:4px;}
.footer-bottom{
  border-top:1px solid var(--border-color);
  padding:20px 0;text-align:center;
  color:var(--text-muted);font-size:.8rem;
}
.footer-bottom a{color:var(--text-muted);}
.footer-bottom a:hover{color:var(--accent);}

/* Responsive */
@media(max-width:1023px){
  .header-inner{gap:18px;}
  .search-box{width:150px;}
  .main-nav{gap:2px;}
  .nav-link{padding:8px 10px;font-size:.85rem;}
  .hero-inner{gap:40px;flex-direction:column;}
  .hero-content{flex:1 1 auto;}
  .hero-visual{flex:1 1 auto;width:100%;}
  .hero-img img{aspect-ratio:16/9;}
  .feature-list{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-form{max-width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .news-card{padding:16px;}
  .news-card-excerpt{display:none;}
}
@media(max-width:767px){
  .mobile-toggle{display:block;}
  .main-nav{
    display:none;
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:rgba(11,21,25,0.98);
    border-bottom:1px solid var(--border-color);
    padding:16px 20px;
  }
  .main-nav.open{display:flex;}
  .main-nav .nav-link{width:100%;padding:10px 12px;font-size:.95rem;}
  .main-nav .nav-link.active::after{left:12px;right:auto;width:28px;}
  .search-box{display:none;}
  .header-actions .btn-header{display:none;}
  .hero{padding-top:100px;padding-bottom:64px;}
  .hero-inner{gap:32px;}
  .hero-facts{gap:20px;flex-wrap:wrap;}
  .countdown-bar{margin-top:74px;}
  .cd-label{font-size:.8rem;}
  .cd-time{gap:4px;}
  .cd-num{padding:3px 7px;font-size:.9rem;}
  .cd-sep{gap:0;font-size:.85rem;}
  .feature-list{grid-template-columns:1fr;gap:0;}
  .feature-item::before{display:none;}
  .feature-item{padding-left:0;padding-top:24px;border-bottom:1px solid var(--border-color);}
  .mosaic-grid{grid-template-columns:1fr 1fr;grid-auto-rows:150px;}
  .mosaic-large{grid-column:span 2;grid-row:span 1;}
  .news-card{flex-wrap:wrap;gap:10px;}
  .news-card-main{flex:1 1 calc(100% - 30px);}
  .news-card-title{white-space:normal;line-height:1.4;}
  .news-card-meta{width:100%;justify-content:space-between;gap:10px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-section{padding:56px 0;}
  .cta-form{flex-direction:column;gap:12px;}
  .cta-form input{width:100%;}
  .cta-form .btn-dark{width:100%;}
  .section-head h2{font-size:1.5rem;}
}

/* roulang page: article */
:root {
    --bg-primary: #0B1519;
    --bg-secondary: #122127;
    --accent: #00D27F;
    --accent-hover: #33DF9C;
    --gold: #FFC74A;
    --text-primary: #F1F5F2;
    --text-muted: #A7B3AD;
    --border: #263238;
    --border-light: rgba(255,255,255,0.06);
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-default: 0 4px 20px rgba(0,0,0,0.35);
    --shadow-accent: 0 8px 30px rgba(0,210,127,0.12);
    --transition: 0.2s ease;
    --container: 1280px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.75;font-size:1rem;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 40px}}

/* ── Header ── */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(11,21,25,0.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-light)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{width:28px;height:28px;border-radius:8px;background:var(--accent);color:var(--bg-primary);display:flex;align-items:center;justify-content:center;font-size:14px}
.brand-text{font-size:1.05rem;font-weight:800;letter-spacing:0.2px;white-space:nowrap;color:#fff}
.main-nav{display:flex;align-items:center;gap:26px;flex:1;justify-content:center}
.nav-link{position:relative;padding:8px 2px;color:var(--text-muted);font-size:0.92rem;font-weight:500;transition:color .2s;white-space:nowrap}
.nav-link::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent);border-radius:2px;opacity:0;transition:opacity .2s}
.nav-link:hover{color:var(--accent)}
.nav-link:hover::after{opacity:.5}
.nav-link.active{color:#fff}
.nav-link.active::after{opacity:1}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{display:flex;align-items:center;background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:6px 12px;gap:8px}
.search-box input{background:transparent;color:var(--text-primary);width:110px;font-size:.85rem}
.search-box input::placeholder{color:var(--text-muted)}
.search-box button{color:var(--text-muted);cursor:pointer;transition:color .2s}
.search-box button:hover{color:var(--accent)}
.nav-login{color:var(--text-muted);font-size:.9rem;transition:color .2s;white-space:nowrap}
.nav-login:hover{color:var(--accent)}
.btn-cta{background:var(--accent);color:var(--bg-primary);padding:8px 18px;border-radius:10px;font-weight:700;font-size:.9rem;transition:background .2s,transform .2s;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.btn-cta:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-cta:active{transform:scale(.96)}
.nav-toggle{display:none;color:#fff;font-size:1.4rem;cursor:pointer;padding:4px}

/* ── Breadcrumb ── */
.article-main{padding-top:68px}
.breadcrumb-wrap{max-width:760px;margin:0 auto;padding:32px 0 16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:.85rem;color:var(--text-muted)}
.breadcrumb-wrap a{color:var(--text-muted);transition:color .2s}
.breadcrumb-wrap a:hover{color:var(--accent)}
.breadcrumb-sep{color:var(--border)}
.breadcrumb-current{color:var(--text-primary);font-weight:500;max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ── Article Head ── */
.article-head{max-width:760px;margin:0 auto;padding:16px 0 32px}
.article-meta{display:flex;align-items:center;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.category-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,199,74,0.08);border:1px solid rgba(255,199,74,0.5);color:var(--gold);font-size:.82rem;font-weight:600;padding:4px 14px;border-radius:999px}
.meta-time{color:var(--text-muted);font-size:.85rem;display:inline-flex;align-items:center;gap:6px}
.article-head h1{font-size:clamp(1.65rem,3.4vw,2.6rem);font-weight:900;line-height:1.25;letter-spacing:-0.01em;margin-bottom:16px;color:#fff}
.article-summary{font-size:1.05rem;color:var(--text-muted);line-height:1.8;border-left:3px solid var(--accent);padding-left:16px}

/* ── Article Content ── */
.article-content{max-width:760px;margin:0 auto;padding-bottom:40px}
.article-content p{margin-bottom:1.2rem;line-height:1.85}
.article-content h2{font-size:1.5rem;font-weight:800;margin:2.2rem 0 1rem;padding-left:14px;border-left:4px solid var(--accent);line-height:1.4}
.article-content h3{font-size:1.2rem;font-weight:700;margin:1.8rem 0 .8rem;padding-left:12px;border-left:3px solid var(--gold);line-height:1.4}
.article-content ul,.article-content ol{margin:1rem 0 1.4rem;padding-left:1.6rem;color:var(--text-primary)}
.article-content li{margin-bottom:.5rem;line-height:1.8}
.article-content ul li::marker{color:var(--accent)}
.article-content ol li::marker{color:var(--gold)}
.article-content blockquote{border-left:4px solid var(--accent);background:rgba(0,210,127,0.06);padding:14px 20px;border-radius:0 14px 14px 0;margin:1.5rem 0;color:var(--text-primary)}
.article-content blockquote p{margin-bottom:.4rem}
.article-content table{width:100%;border-collapse:collapse;background:var(--bg-secondary);border-radius:12px;overflow:hidden;margin:1.5rem 0;font-size:.92rem}
.article-content th{background:var(--bg-secondary);padding:12px 16px;text-align:left;font-weight:700;color:#fff;border-bottom:1px solid var(--border)}
.article-content td{padding:12px 16px;border-bottom:1px solid rgba(38,50,56,0.45);color:var(--text-muted)}
.article-content tr:last-child td{border-bottom:none}
.article-content tr:hover td{background:rgba(0,210,127,0.06);color:var(--text-primary)}
.article-content pre{background:#050A0D;border:1px solid var(--border);border-radius:12px;padding:16px 20px;overflow-x:auto;margin:1.5rem 0}
.article-content code{font-family:'JetBrains Mono',Consolas,'Courier New',monospace;font-size:.88rem;color:var(--accent)}
.article-content pre code{color:#d6e3db}
.article-content img{border-radius:14px;margin:1.5rem 0;box-shadow:var(--shadow-default)}
.article-content a{color:var(--accent);border-bottom:1px solid rgba(0,210,127,0.3);transition:border-color .2s}
.article-content a:hover{border-bottom-color:var(--accent)}

/* ── Empty State ── */
.article-empty{max-width:760px;margin:0 auto;padding:80px 20px;text-align:center;border:2px dashed var(--border);border-radius:18px;background:var(--bg-secondary)}
.article-empty .empty-icon{font-size:2.5rem;color:var(--text-muted);margin-bottom:16px}
.article-empty h3{font-size:1.3rem;font-weight:700;color:#fff;margin-bottom:10px}
.article-empty p{color:var(--text-muted);margin-bottom:24px}

/* ── Topics ── */
.article-topics{max-width:760px;margin:0 auto;padding:24px 0 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--border)}
.topics-label{color:var(--text-muted);font-size:.9rem;font-weight:600}
.topic-tag{display:inline-flex;align-items:center;gap:6px;background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-muted);font-size:.85rem;padding:5px 16px;border-radius:999px;transition:all .2s}
.topic-tag:hover{border-color:var(--accent);color:var(--accent);background:rgba(0,210,127,0.06)}

/* ── Article CTA ── */
.article-cta{margin:40px auto;max-width:960px;background:var(--accent);border-radius:18px;padding:44px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:var(--shadow-accent)}
.article-cta-left h3{font-size:1.35rem;font-weight:900;color:var(--bg-primary);line-height:1.3;margin-bottom:6px}
.article-cta-left p{font-size:.95rem;color:rgba(11,21,25,0.75)}
.article-cta-btn{background:var(--bg-primary);color:var(--accent);padding:12px 28px;border-radius:10px;font-weight:700;transition:all .2s;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.article-cta-btn:hover{background:var(--bg-secondary);transform:translateY(-2px)}
.article-cta-btn:active{transform:scale(.96)}

/* ── Related ── */
.related-section{max-width:960px;margin:0 auto 48px}
.related-section .section-title{display:flex;align-items:center;gap:12px;font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:10px}
.section-title::after{content:'';flex:1;height:1px;background:var(--border)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:all .25s;display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-4px);border-color:rgba(0,210,127,0.5);box-shadow:var(--shadow-accent)}
.related-card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.related-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.related-card:hover .related-card-media img{transform:scale(1.05)}
.related-card-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(11,21,25,0.72));opacity:.7}
.related-card-cat{position:absolute;top:12px;left:12px;z-index:2;background:rgba(11,21,25,0.8);color:var(--gold);font-size:.75rem;font-weight:600;padding:3px 12px;border-radius:999px;border:1px solid rgba(255,199,74,0.4)}
.related-card-body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.related-card-body h3{font-size:1.02rem;font-weight:700;line-height:1.45;margin-bottom:8px;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card-body p{font-size:.88rem;color:var(--text-muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.related-card-link{margin-top:auto;color:var(--accent);font-size:.88rem;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.related-card-link:hover{gap:10px}
.related-card-link i{font-size:.75rem}

/* ── Back Entry ── */
.back-entry{max-width:760px;margin:0 auto 48px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:14px;flex-wrap:wrap}
.back-entry a{display:inline-flex;align-items:center;gap:8px;color:var(--text-muted);font-size:.92rem;transition:color .2s}
.back-entry a:hover{color:var(--accent)}

/* ── Footer ── */
.site-footer{background:#081013;border-top:1px solid var(--border);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 1fr 1fr;gap:32px;padding-bottom:36px}
.footer-brand-text{color:var(--text-muted);font-size:.88rem;line-height:1.7;margin-top:14px;max-width:300px}
.footer-col h4{font-size:.95rem;font-weight:700;color:#fff;margin-bottom:14px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-muted);font-size:.88rem;transition:color .2s}
.footer-links a:hover{color:var(--accent)}
.footer-service{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-service li{color:var(--text-muted);font-size:.88rem;display:flex;align-items:center;gap:10px}
.footer-service i{color:var(--accent);width:16px;text-align:center;font-size:.85rem}
.footer-bottom{border-top:1px solid var(--border);padding:18px 0;text-align:center}
.footer-bottom p{color:var(--text-muted);font-size:.8rem}

/* ── Buttons ── */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:var(--bg-primary);padding:12px 28px;border-radius:10px;font-weight:700;font-size:.95rem;transition:background .2s,transform .2s,box-shadow .2s}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-accent)}
.btn-primary:active{transform:scale(.96)}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;border:1px solid var(--border);color:var(--text-primary);padding:12px 28px;border-radius:10px;font-weight:600;font-size:.95rem;transition:all .2s}
.btn-secondary:hover{border-color:var(--accent);background:rgba(0,210,127,0.08);color:var(--accent)}

/* ── Responsive ── */
@media(max-width:1024px){
.footer-grid{grid-template-columns:1fr 1fr}
.related-grid{grid-template-columns:repeat(2,1fr)}
.header-actions .search-box{display:none}
}
@media(max-width:768px){
.nav-toggle{display:block}
.main-nav{position:fixed;top:68px;left:0;right:0;background:var(--bg-primary);flex-direction:column;align-items:flex-start;padding:20px 24px;gap:6px;transform:translateY(-120%);transition:transform .3s;border-bottom:1px solid var(--border);z-index:999}
.main-nav.open{transform:translateY(0)}
.nav-link{width:100%;padding:10px 0;font-size:1rem}
.header-actions{gap:8px}
.btn-cta{padding:8px 14px;font-size:.85rem}
.nav-login{display:none}
.article-cta{padding:32px 24px;flex-direction:column;align-items:flex-start}
.article-cta-btn{width:100%;justify-content:center}
.footer-grid{grid-template-columns:1fr;gap:24px}
.footer-brand-text{max-width:100%}
.breadcrumb-wrap{padding:24px 0 12px}
.article-head h1{font-size:1.6rem}
.article-summary{font-size:.95rem}
.article-content h2{font-size:1.3rem}
.article-content h3{font-size:1.1rem}
}
@media(max-width:520px){
.related-grid{grid-template-columns:1fr}
.brand-text{font-size:.9rem}
.search-box{display:none}
.article-topics{justify-content:flex-start}
.back-entry{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root {
    --bg: #0B1519;
    --bg-secondary: #122127;
    --primary: #00D27F;
    --primary-hover: #33DF9C;
    --accent: #FFC74A;
    --text: #F1F5F2;
    --muted: #A7B3AD;
    --border: #263238;
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --radius-pill: 999px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 8px 30px rgba(0, 210, 127, 0.12);
  }
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
    font-size: 1rem;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  a {
    color: inherit;
    text-decoration: none;
    transition: color .2s;
  }
  img {
    max-width: 100%;
    display: block;
  }
  button,
  input {
    font-family: inherit;
  }
  .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
  }
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 21, 25, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .header-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    height: 72px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg);
    font-size: 1rem;
  }
  .brand-text {
    font-size: 1.15rem;
    font-weight: 900;
    letter-spacing: 0.5px;
    white-space: nowrap;
  }
  .main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
  }
  .nav-link {
    position: relative;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--muted);
    border-radius: 8px;
    white-space: nowrap;
    transition: color .2s;
  }
  .nav-link:hover {
    color: var(--primary);
  }
  .nav-link.active {
    color: var(--text);
  }
  .nav-link.active::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 2px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
  }
  .header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
  }
  .search-box {
    position: relative;
  }
  .search-box input {
    width: 180px;
    height: 38px;
    padding: 0 14px 0 36px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.85rem;
    outline: none;
    transition: border .2s;
  }
  .search-box input::placeholder {
    color: var(--muted);
  }
  .search-box input:focus {
    border-color: rgba(0, 210, 127, 0.5);
  }
  .search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 0.85rem;
  }
  .text-btn {
    color: var(--muted);
    font-size: 0.9rem;
    padding: 6px 8px;
    cursor: pointer;
  }
  .text-btn:hover {
    color: var(--primary);
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--bg);
    font-weight: 700;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    transition: all .2s;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
  }
  .btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
  }
  .btn-primary:active {
    transform: scale(0.96);
  }
  .btn-small {
    padding: 8px 18px;
    font-size: 0.85rem;
  }
  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-weight: 500;
    transition: all .2s;
    cursor: pointer;
  }
  .btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(0, 210, 127, 0.08);
  }
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.3rem;
    cursor: pointer;
  }
  .cat-hero {
    position: relative;
    padding: 120px 0 96px;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
  }
  .cat-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.25;
  }
  .cat-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 20% 30%, rgba(0, 210, 127, 0.18) 0%, transparent 55%);
    pointer-events: none;
  }
  .cat-hero-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 860px;
  }
  .badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(255, 199, 74, 0.08);
    border: 1px solid rgba(255, 199, 74, 0.35);
    border-radius: var(--radius-pill);
    padding: 4px 14px;
    margin-bottom: 18px;
  }
  .cat-hero h1 {
    font-size: clamp(1.9rem, 4vw, 3.2rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: 1px;
  }
  .cat-hero-desc {
    margin-top: 18px;
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.8;
  }
  .cat-hero-actions {
    display: flex;
    justify-content: center;
    margin-top: 32px;
    gap: 16px;
  }
  .stats-bar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 40px 0;
    gap: 24px;
  }
  .stat-item {
    text-align: center;
    padding: 8px 16px;
  }
  .stat-icon {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 6px;
  }
  .stat-num {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
  }
  .stat-label {
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 4px;
  }
  .stat-desc {
    color: var(--muted);
    font-size: 0.85rem;
    margin-top: 4px;
    line-height: 1.6;
  }
  .topics {
    padding: 96px 0;
  }
  .section-head {
    margin-bottom: 48px;
  }
  .section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(255, 199, 74, 0.08);
    border: 1px solid rgba(255, 199, 74, 0.35);
    border-radius: var(--radius-pill);
    padding: 4px 14px;
    margin-bottom: 12px;
  }
  .section-head h2 {
    font-size: clamp(1.35rem, 2.6vw, 2rem);
    font-weight: 800;
    color: var(--text);
  }
  .section-head p {
    color: var(--muted);
    margin-top: 8px;
    max-width: 640px;
  }
  .card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  .topic-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .3s;
  }
  .topic-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 210, 127, 0.5);
  }
  .topic-card-img {
    aspect-ratio: 16 / 10;
    overflow: hidden;
  }
  .topic-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s;
  }
  .topic-card:hover .topic-card-img img {
    transform: scale(1.05);
  }
  .topic-card-body {
    padding: 20px;
  }
  .topic-card-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
  }
  .topic-card-body p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.65;
  }
  .topic-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
  }
  .topic-card-link i {
    transition: transform .2s;
  }
  .topic-card-link:hover i {
    transform: translateX(4px);
  }
  .scenarios {
    background: var(--bg-secondary);
    border-block: 1px solid var(--border);
    padding: 96px 0;
  }
  .scenario-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .scenario-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all .3s;
  }
  .scenario-card:hover {
    border-color: rgba(0, 210, 127, 0.5);
    box-shadow: var(--shadow-hover);
  }
  .scenario-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 210, 127, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 16px;
  }
  .scenario-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
  }
  .scenario-card p {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.7;
  }
  .process {
    padding: 96px 0;
  }
  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: process;
  }
  .process-step {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    overflow: hidden;
    transition: border-color .3s;
  }
  .process-step:hover {
    border-color: rgba(0, 210, 127, 0.5);
  }
  .process-step::before {
    content: counter(process, decimal-leading-zero);
    counter-increment: process;
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(0, 210, 127, 0.08);
    line-height: 1;
  }
  .process-step h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
  }
  .process-step p {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.6;
  }
  .faq-section {
    padding: 96px 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
  }
  .faq-list {
    max-width: 860px;
    margin: 0 auto;
  }
  .faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .3s;
  }
  .faq-item.active {
    border-color: rgba(0, 210, 127, 0.5);
  }
  .faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
  }
  .faq-icon {
    transition: transform .3s;
    color: var(--primary);
    font-size: 0.9rem;
  }
  .faq-item.active .faq-icon {
    transform: rotate(45deg);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }
  .faq-answer p {
    padding: 0 20px 18px;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.7;
  }
  .cta-section {
    padding: 96px 0;
  }
  .cta-box {
    background: var(--primary);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    color: var(--bg);
  }
  .cta-content h2 {
    font-size: clamp(1.35rem, 2.6vw, 2rem);
    font-weight: 900;
    color: var(--bg);
    line-height: 1.3;
  }
  .cta-content p {
    color: rgba(11, 21, 25, 0.8);
    margin-top: 8px;
  }
  .cta-form {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
  }
  .cta-form input {
    width: 240px;
    height: 44px;
    padding: 0 16px;
    background: var(--bg);
    border: none;
    border-radius: 10px;
    color: var(--text);
    outline: none;
    font-size: 0.9rem;
  }
  .cta-form input::placeholder {
    color: var(--muted);
  }
  .cta-form input:focus {
    box-shadow: 0 0 0 2px var(--bg);
    ring: 2px solid var(--bg);
  }
  .btn-dark {
    height: 44px;
    padding: 0 24px;
    background: var(--bg);
    color: var(--primary);
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background .2s;
    white-space: nowrap;
  }
  .btn-dark:hover {
    background: var(--bg-secondary);
  }
  .site-footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding: 64px 0 48px;
  }
  .footer-brand-text {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 14px;
    max-width: 320px;
    line-height: 1.7;
  }
  .footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
  }
  .footer-links {
    list-style: none;
  }
  .footer-links li {
    margin-bottom: 10px;
  }
  .footer-links a {
    color: var(--muted);
    font-size: 0.9rem;
    transition: color .2s;
  }
  .footer-links a:hover {
    color: var(--primary);
  }
  .footer-service li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 10px;
    list-style: none;
  }
  .footer-service li i {
    color: var(--primary);
    font-size: 0.85rem;
    width: 18px;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 18px 0;
    text-align: center;
  }
  .footer-bottom p {
    color: var(--muted);
    font-size: 0.85rem;
  }
  @media (max-width: 1200px) {
    .container {
      padding: 0 32px;
    }
    .header-inner {
      gap: 20px;
    }
    .main-nav {
      gap: 2px;
    }
    .nav-link {
      padding: 8px 10px;
      font-size: 0.85rem;
    }
    .search-box input {
      width: 140px;
    }
  }
  @media (max-width: 1023px) {
    .container {
      padding: 0 24px;
    }
    .header-inner {
      flex-wrap: wrap;
      height: auto;
      padding: 12px 0;
      gap: 12px;
    }
    .search-box {
      display: none;
    }
    .main-nav {
      display: none;
      width: 100%;
      order: 4;
      flex-direction: column;
      align-items: stretch;
      padding: 8px 0 4px;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }
    .main-nav.nav-open {
      display: flex;
    }
    .nav-link {
      padding: 12px 8px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .nav-link.active::after {
      display: none;
    }
    .nav-toggle {
      display: block;
    }
    .card-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .scenario-grid {
      grid-template-columns: 1fr 1fr;
    }
    .process-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
    .cta-box {
      flex-direction: column;
      align-items: flex-start;
    }
    .cta-form {
      width: 100%;
    }
    .cta-form input {
      flex: 1;
      width: auto;
    }
  }
  @media (max-width: 767px) {
    .container {
      padding: 0 16px;
    }
    .brand-text {
      font-size: 1rem;
    }
    .cat-hero {
      padding: 80px 0 64px;
    }
    .cat-hero-actions {
      flex-direction: column;
      width: 100%;
      gap: 12px;
    }
    .cat-hero-actions .btn-primary,
    .cat-hero-actions .btn-secondary {
      width: 100%;
    }
    .stats-grid {
      grid-template-columns: 1fr;
      gap: 28px;
      padding: 32px 0;
    }
    .card-grid {
      grid-template-columns: 1fr;
    }
    .scenario-grid {
      grid-template-columns: 1fr;
    }
    .process-grid {
      grid-template-columns: 1fr;
    }
    .topics {
      padding: 64px 0;
    }
    .scenarios {
      padding: 64px 0;
    }
    .process {
      padding: 64px 0;
    }
    .faq-section {
      padding: 64px 0;
    }
    .cta-section {
      padding: 64px 0;
    }
    .cta-box {
      padding: 32px 24px;
    }
    .cta-form {
      flex-direction: column;
    }
    .cta-form input {
      width: 100%;
    }
    .btn-dark {
      width: 100%;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      padding: 48px 0 36px;
    }
  }

/* roulang page: category1 */
:root {
    --bg-primary: #0B1519;
    --bg-secondary: #122127;
    --bg-elevated: #16262d;
    --accent-green: #00D27F;
    --accent-green-hover: #33DF9C;
    --accent-gold: #FFC74A;
    --text-hi: #F1F5F2;
    --text-mid: #A7B3AD;
    --text-low: #7e8a83;
    --border-line: #263238;
    --border-line-strong: #34464e;
    --r-lg: 18px;
    --r-md: 14px;
    --r-sm: 10px;
    --r-pill: 999px;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-green: 0 8px 30px rgba(0, 210, 127, 0.12);
    --transition: 0.2s ease;
    --container-max: 1280px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-hi);
    line-height: 1.75;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

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

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

  button,
  input {
    font-family: inherit;
    font-size: inherit;
  }

  ul,
  ol {
    list-style: none;
  }

  .container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
  }

  .section {
    padding: 96px 0;
  }

  .section-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 48px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-green);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: 12px;
  }

  .section-head h2 {
    font-size: clamp(1.35rem, 2.6vw, 2rem);
    font-weight: 800;
    margin-bottom: 12px;
  }

  .section-head p {
    color: var(--text-mid);
    max-width: 640px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.925rem;
    padding: 12px 24px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.4;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--accent-green);
    color: var(--bg-primary);
  }

  .btn-primary:hover {
    background: var(--accent-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 210, 127, 0.25);
  }

  .btn-primary:active {
    transform: scale(0.96);
  }

  .btn-primary:focus-visible,
  .btn-outline:focus-visible {
    outline: 2px solid var(--accent-green);
    outline-offset: 3px;
  }

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

  .btn-outline:hover {
    border-color: var(--accent-green);
    background: rgba(0, 210, 127, 0.08);
    transform: translateY(-2px);
  }

  .btn-large {
    padding: 16px 36px;
    font-size: 1rem;
    border-radius: 12px;
  }

  .btn-nav {
    padding: 9px 18px;
    font-size: 0.875rem;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 21, 25, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
  }

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

  .brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--accent-green);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
  }

  .brand-text {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.01em;
    white-space: nowrap;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .main-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    padding: 8px 14px;
    font-size: 0.9rem;
    color: var(--text-mid);
    border-radius: 8px;
    white-space: nowrap;
    position: relative;
    transition: color var(--transition);
  }

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

  .nav-link.active {
    color: var(--text-hi);
    font-weight: 600;
  }

  .nav-link.active::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 0;
    height: 2px;
    background: var(--accent-green);
    border-radius: 2px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border: 1px solid var(--border-line);
    border-radius: 10px;
    background: var(--bg-secondary);
    color: var(--text-mid);
    width: 190px;
    transition: border-color 0.2s ease;
  }

  .search-box input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-hi);
    font-size: 0.875rem;
  }

  .search-box input::placeholder {
    color: var(--text-mid);
  }

  .search-box:focus-within {
    border-color: var(--accent-green);
  }

  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-line);
    border-radius: 10px;
    color: var(--text-hi);
    cursor: pointer;
    transition: border-color 0.2s ease;
  }

  .nav-toggle:hover {
    border-color: var(--accent-green);
  }

  .category-hero {
    position: relative;
    padding: 72px 0 88px;
    background:
      radial-gradient(ellipse at 18% 0%, rgba(0, 210, 127, 0.10), transparent 58%),
      linear-gradient(to bottom, rgba(11, 21, 25, 0.82), rgba(11, 21, 25, 0.62)),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom: 1px solid var(--border-line);
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    font-size: 0.875rem;
    color: var(--text-mid);
  }

  .breadcrumb ol {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }

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

  .breadcrumb i {
    font-size: 0.7rem;
    opacity: 0.6;
  }

  .hero-main {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 64px;
    align-items: center;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 210, 127, 0.1);
    border: 1px solid rgba(0, 210, 127, 0.3);
    color: var(--accent-green);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
  }

  .category-hero h1 {
    font-size: clamp(1.9rem, 4vw, 3.2rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: 0.01em;
  }

  .category-hero .hero-copy > p {
    color: var(--text-mid);
    font-size: 1.05rem;
    max-width: 560px;
    margin-bottom: 32px;
    line-height: 1.75;
  }

  .hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
  }

  .hero-visual {
    position: relative;
  }

  .hero-img {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-line);
    box-shadow: var(--shadow-soft);
  }

  .hero-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
      linear-gradient(150deg, rgba(0, 210, 127, 0.15) 0%, transparent 45%),
      linear-gradient(to top, rgba(11, 21, 25, 0.35), transparent 60%);
    pointer-events: none;
  }

  .hero-img img {
    width: 100%;
    height: 340px;
    object-fit: cover;
  }

  .hero-stat-card {
    position: absolute;
    left: -24px;
    bottom: -24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-line);
    border-radius: 14px;
    padding: 16px 20px;
    display: flex;
    gap: 18px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
    z-index: 2;
  }

  .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
  }

  .stat-item span {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--accent-gold);
    font-variant-numeric: tabular-nums;
  }

  .stat-item small {
    font-size: 0.7rem;
    color: var(--text-mid);
    white-space: nowrap;
  }

  .entry-section {
    background: transparent;
  }

  .entry-cards-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .entry-card {
    grid-column: span 3;
    background: var(--bg-secondary);
    border: 1px solid var(--border-line);
    border-radius: var(--r-md);
    overflow: hidden;
    transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  }

  .entry-card:hover {
    box-shadow: var(--shadow-green);
    border-color: rgba(0, 210, 127, 0.5);
    transform: translateY(-4px);
  }

  .entry-card-featured {
    grid-column: span 6;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .entry-card-thumb {
    position: relative;
    overflow: hidden;
    min-height: 220px;
  }

  .entry-card-thumb img {
    width: 100%;
    height: 100%;
    min-height: 220px;
    object-fit: cover;
    transition: transform 0.45s ease;
  }

  .entry-card:hover .entry-card-thumb img {
    transform: scale(1.04);
  }

  .card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(11, 21, 25, 0.82);
    color: var(--accent-gold);
    border: 1px solid rgba(255, 199, 74, 0.4);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    z-index: 2;
  }

  .entry-card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .entry-card-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
  }

  .entry-card-content p {
    color: var(--text-mid);
    font-size: 0.925rem;
    flex-grow: 1;
  }

  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-green);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 6px;
    transition: color 0.2s;
  }

  .card-link i {
    transition: transform 0.2s ease;
  }

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

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

  .card-category {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--accent-gold);
    opacity: 0.9;
  }

  .entry-card-featured .entry-card-thumb {
    min-height: 100%;
  }

  .entry-card-wide {
    grid-column: span 6;
  }

  .scenario-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-line);
    border-bottom: 1px solid var(--border-line);
  }

  .scenario-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .scenario-card {
    grid-column: span 6;
    background: var(--bg-primary);
    border: 1px solid var(--border-line);
    border-radius: var(--r-md);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  }

  .scenario-card:hover {
    box-shadow: var(--shadow-green);
    border-color: rgba(0, 210, 127, 0.5);
    transform: translateY(-4px);
  }

  .scenario-card:first-child {
    grid-column: span 7;
  }

  .scenario-card:nth-child(2) {
    grid-column: span 5;
  }

  .scenario-card:last-child {
    grid-column: span 12;
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 36px 40px;
  }

  .scenario-card:last-child .scenario-text {
    flex: 1;
  }

  .scenario-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(0, 210, 127, 0.12);
    color: var(--accent-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 18px;
    flex-shrink: 0;
  }

  .scenario-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .scenario-card p {
    color: var(--text-mid);
    font-size: 0.9rem;
    line-height: 1.7;
  }

  .scenario-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-gold);
    background: rgba(255, 199, 74, 0.08);
    border: 1px solid rgba(255, 199, 74, 0.3);
    padding: 4px 12px;
    border-radius: 999px;
  }

  .flow-section {
    background: transparent;
  }

  .flow-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
  }

  .flow-step {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-line);
    border-radius: var(--r-md);
    padding: 28px 22px;
    text-align: center;
    transition: border-color var(--transition), box-shadow var(--transition);
  }

  .flow-step:hover {
    border-color: rgba(0, 210, 127, 0.5);
    box-shadow: var(--shadow-green);
  }

  .step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 210, 127, 0.12);
    color: var(--accent-green);
    font-weight: 800;
    font-size: 0.875rem;
    margin-bottom: 12px;
    font-variant-numeric: tabular-nums;
  }

  .step-icon {
    color: var(--accent-gold);
    font-size: 1.45rem;
    margin-bottom: 10px;
  }

  .flow-step h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .flow-step p {
    color: var(--text-mid);
    font-size: 0.85rem;
    line-height: 1.6;
  }

  .faq-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-line);
  }

  .faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .faq-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-line);
    border-radius: var(--r-md);
    overflow: hidden;
    transition: border-color 0.25s ease;
  }

  .faq-item.open {
    border-color: rgba(0, 210, 127, 0.45);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    background: transparent;
    border: none;
    color: var(--text-hi);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    transition: color 0.2s ease;
  }

  .faq-question:hover {
    color: var(--accent-green);
  }

  .faq-question i {
    color: var(--accent-green);
    transition: transform 0.3s ease;
    flex-shrink: 0;
  }

  .faq-item.open .faq-question i {
    transform: rotate(45deg);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 20px;
    color: var(--text-mid);
    font-size: 0.9rem;
    line-height: 1.75;
  }

  .faq-item.open .faq-answer {
    max-height: 400px;
    padding: 0 20px 18px;
  }

  .cta-section {
    padding: 96px 0;
  }

  .cta-block {
    background: var(--accent-green);
    border-radius: var(--r-lg);
    padding: 56px 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    color: var(--bg-primary);
    position: relative;
    overflow: hidden;
  }

  .cta-block::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(11, 21, 25, 0.05);
    top: -80px;
    right: -60px;
  }

  .cta-block h2 {
    font-size: clamp(1.4rem, 2.4vw, 2rem);
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--bg-primary);
  }

  .cta-block p {
    color: rgba(11, 21, 25, 0.75);
    font-size: 0.95rem;
    max-width: 480px;
  }

  .cta-block .btn {
    background: var(--bg-primary);
    color: var(--accent-green);
    position: relative;
    z-index: 1;
  }

  .cta-block .btn:hover {
    background: #0F1D23;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(11, 21, 25, 0.25);
  }

  .site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-line);
    padding: 64px 0 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
  }

  .footer-brand-text {
    color: var(--text-mid);
    font-size: 0.9rem;
    margin-top: 14px;
    max-width: 320px;
    line-height: 1.7;
  }

  .footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-hi);
  }

  .footer-links li {
    margin-bottom: 8px;
  }

  .footer-links a {
    color: var(--text-mid);
    font-size: 0.875rem;
    transition: color 0.2s ease, padding-left 0.2s ease;
  }

  .footer-links a:hover {
    color: var(--accent-green);
    padding-left: 4px;
  }

  .footer-service li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-mid);
    font-size: 0.875rem;
    margin-bottom: 10px;
  }

  .footer-service i {
    color: var(--accent-green);
    width: 16px;
    text-align: center;
  }

  .footer-bottom {
    border-top: 1px solid var(--border-line);
    padding: 20px 0;
  }

  .footer-bottom p {
    color: var(--text-low);
    font-size: 0.85rem;
    text-align: center;
  }

  @media (min-width: 768px) and (max-width: 1023px) {
    .container {
      padding-left: 24px;
      padding-right: 24px;
    }

    .nav-toggle {
      display: flex;
    }

    .main-nav {
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      background: var(--bg-secondary);
      flex-direction: column;
      gap: 0;
      padding: 12px 24px;
      border-bottom: 1px solid var(--border-line);
      opacity: 0;
      visibility: hidden;
      transform: translateY(-10px);
      transition: 0.25s ease;
      z-index: 99;
      max-height: calc(100vh - 72px);
      overflow-y: auto;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }

    .main-nav.nav-open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .nav-link {
      width: 100%;
      padding: 12px 8px;
      border-radius: 8px;
    }

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

    .search-box {
      display: none;
    }

    .hero-main {
      grid-template-columns: 1fr 0.9fr;
      gap: 36px;
    }

    .hero-stat-card {
      left: auto;
      right: 12px;
    }

    .entry-card-featured {
      grid-column: span 6;
    }

    .entry-card {
      grid-column: span 3;
    }

    .entry-card-featured .entry-card-content {
      padding: 20px;
    }

    .scenario-card:first-child,
    .scenario-card:nth-child(2),
    .scenario-card:last-child {
      grid-column: span 12;
    }

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

    .cta-block {
      flex-direction: column;
      text-align: center;
      padding: 48px;
    }

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

  @media (max-width: 767px) {
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }

    .section {
      padding: 64px 0;
    }

    .header-inner {
      height: 64px;
      gap: 12px;
    }

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

    .nav-toggle {
      display: flex;
    }

    .main-nav {
      position: fixed;
      top: 64px;
      left: 0;
      right: 0;
      background: var(--bg-secondary);
      flex-direction: column;
      gap: 0;
      padding: 12px 16px;
      border-bottom: 1px solid var(--border-line);
      opacity: 0;
      visibility: hidden;
      transform: translateY(-10px);
      transition: 0.25s ease;
      z-index: 99;
      max-height: calc(100vh - 64px);
      overflow-y: auto;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }

    .main-nav.nav-open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .nav-link {
      width: 100%;
      padding: 12px 8px;
      border-radius: 8px;
      font-size: 0.95rem;
    }

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

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

    .search-box {
      display: none;
    }

    .category-hero {
      padding: 48px 0 64px;
    }

    .hero-main {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .hero-img img {
      height: 240px;
    }

    .hero-stat-card {
      position: static;
      margin-top: 16px;
      justify-content: space-around;
    }

    .breadcrumb {
      margin-bottom: 28px;
    }

    .hero-actions .btn {
      width: 100%;
    }

    .entry-cards-grid {
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .entry-card,
    .entry-card-featured,
    .entry-card-wide {
      grid-column: span 1;
      grid-template-columns: 1fr;
    }

    .entry-card-thumb img,
    .entry-card-featured .entry-card-thumb img {
      min-height: 180px;
      max-height: 200px;
    }

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

    .scenario-card,
    .scenario-card:first-child,
    .scenario-card:nth-child(2),
    .scenario-card:last-child {
      grid-column: span 1;
      flex-direction: column;
      gap: 0;
      padding: 28px;
    }

    .flow-steps {
      grid-template-columns: 1fr;
      gap: 12px;
    }

    .flow-step {
      display: flex;
      align-items: flex-start;
      text-align: left;
      gap: 16px;
      padding: 20px;
    }

    .flow-step .step-num,
    .flow-step .step-icon {
      margin-bottom: 0;
    }

    .flow-step-text {
      flex: 1;
    }

    .cta-section {
      padding: 64px 0;
    }

    .cta-block {
      flex-direction: column;
      text-align: center;
      padding: 40px 24px;
      gap: 20px;
    }

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

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

    .footer-bottom p {
      font-size: 0.78rem;
    }
  }

/* roulang page: category3 */
:root {
  --bg-primary: #0B1519;
  --bg-secondary: #122127;
  --bg-card: #122127;
  --accent: #00D27F;
  --accent-hover: #33DF9C;
  --gold: #FFC74A;
  --text-primary: #F1F5F2;
  --text-muted: #A7B3AD;
  --border: #263238;
  --border-light: rgba(255, 255, 255, 0.06);
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-tag: 999px;
  --shadow-default: 0 4px 20px rgba(0, 0, 0, 0.35);
  --shadow-accent: 0 8px 30px rgba(0, 210, 127, 0.12);
  --transition: 0.2s ease;
  --container-w: 1280px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
ul,
ol {
  list-style: none;
}
button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 1023px) {
  .container {
    padding: 0 24px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
}
.tabular {
  font-variant-numeric: tabular-nums;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 21, 25, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: 8px;
  font-size: 15px;
}
.brand-text {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 8px;
  flex: 1;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.9375rem;
  color: var(--text-muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--accent);
  background: rgba(0, 210, 127, 0.06);
}
.nav-link.active {
  color: #fff;
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 180px;
  height: 38px;
  padding: 0 14px 0 36px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-box input::placeholder {
  color: var(--text-muted);
}
.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 210, 127, 0.15);
}
.search-box i {
  position: absolute;
  left: 13px;
  color: var(--text-muted);
  font-size: 0.8125rem;
  pointer-events: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 10px 22px;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 210, 127, 0.25);
}
.btn-primary:active {
  transform: scale(0.96);
}
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: rgba(0, 210, 127, 0.08);
  color: var(--accent);
}
.btn-outline:active {
  transform: scale(0.96);
}
.btn-dark {
  background: var(--bg-primary);
  color: var(--accent);
}
.btn-dark:hover {
  background: var(--bg-secondary);
  color: var(--accent-hover);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.menu-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}
@media (max-width: 1023px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    gap: 6px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    width: 100%;
    padding: 12px 16px;
  }
  .nav-link.active::after {
    left: 16px;
    right: auto;
    width: 32px;
  }
  .header-actions {
    margin-left: auto;
  }
  .menu-toggle {
    display: flex;
  }
}
@media (max-width: 767px) {
  .search-box {
    display: none;
  }
  .brand-text {
    font-size: 0.9375rem;
  }
  .btn-sm {
    padding: 8px 12px;
    font-size: 0.8125rem;
  }
}

.hero-section {
  position: relative;
  padding: 96px 0 80px;
  background: var(--bg-primary);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity: 0.25;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 21, 25, 0.95) 30%, rgba(11, 21, 25, 0.65) 100%);
}
.hero-glow {
  position: absolute;
  top: -80px;
  left: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 210, 127, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border: 1px solid rgba(255, 199, 74, 0.4);
  border-radius: var(--radius-tag);
  color: var(--gold);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 18px;
  background: rgba(255, 199, 74, 0.06);
}
.hero-title {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-title span {
  color: var(--accent);
}
.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.0625rem;
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 44px;
  max-width: 500px;
}
.hero-stat {
  background: rgba(18, 33, 39, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  text-align: center;
}
.hero-stat-num {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.hero-stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.hero-visual {
  position: relative;
}
.hero-visual-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-default);
}
.hero-visual-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}
.hero-visual-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 210, 127, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 210, 127, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  border-radius: var(--radius-lg);
}
.hero-visual-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(11, 21, 25, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(6px);
}
.hero-visual-badge i {
  color: var(--accent);
  font-size: 1.25rem;
}
.hero-visual-badge p {
  font-size: 0.875rem;
  color: var(--text-primary);
  line-height: 1.5;
}
@media (max-width: 1023px) {
  .hero-section {
    padding: 64px 0 56px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-stats {
    max-width: 100%;
  }
}
@media (max-width: 767px) {
  .hero-section {
    padding: 48px 0 40px;
  }
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
  .hero-stat {
    padding: 14px 10px;
  }
  .hero-stat-num {
    font-size: 1.375rem;
  }
}

.section {
  padding: 96px 0;
}
.section-alt {
  background: var(--bg-secondary);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-title {
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--accent);
  border-radius: 4px;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 0.9375rem;
  max-width: 600px;
}
@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }
  .section-head {
    margin-bottom: 32px;
  }
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-tag);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.tag-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}
.tag-item i {
  color: var(--gold);
  font-size: 0.875rem;
}
.tag-item .count {
  background: rgba(0, 210, 127, 0.12);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: var(--radius-tag);
  font-variant-numeric: tabular-nums;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card-grid .content-card:nth-child(4n + 2) {
  transform: translateY(20px);
}
.content-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}
.content-card:hover {
  border-color: rgba(0, 210, 127, 0.5);
  box-shadow: var(--shadow-accent);
  transform: translateY(-6px);
}
.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 2.6;
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.content-card:hover .card-media img {
  transform: scale(1.05);
}
.card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 21, 25, 0.5) 0%, transparent 40%);
  pointer-events: none;
}
.card-media-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 4px 12px;
  background: rgba(11, 21, 25, 0.75);
  border: 1px solid rgba(255, 199, 74, 0.5);
  color: var(--gold);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-tag);
  backdrop-filter: blur(4px);
}
.card-body {
  padding: 22px 22px 24px;
}
.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
  transition: color var(--transition);
}
.content-card:hover .card-title {
  color: var(--accent);
}
.card-text {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  transition: gap var(--transition);
}
.card-link i {
  font-size: 0.8125rem;
}
.card-link:hover {
  gap: 12px;
}
@media (max-width: 1023px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-grid .content-card:nth-child(4n + 2) {
    transform: none;
  }
}
@media (max-width: 767px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  .card-grid .content-card:nth-child(4n + 2) {
    transform: none;
  }
}

.rank-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.rank-wrapper {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.rank-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.rank-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 18px;
  background: transparent;
  border-radius: var(--radius-md);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: default;
}
.rank-item:hover {
  background: rgba(0, 210, 127, 0.05);
  transform: translateX(6px);
  box-shadow: var(--shadow-accent);
}
.rank-num {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  width: 52px;
  flex-shrink: 0;
  text-align: center;
}
.rank-info {
  flex: 1;
}
.rank-name {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
}
.rank-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 2px;
}
.rank-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(0, 210, 127, 0.1);
  border-radius: var(--radius-tag);
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.rank-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 420px;
  border: 1px solid var(--border);
}
.rank-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.rank-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 21, 25, 0.9) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: 28px;
}
.rank-visual-text h3 {
  font-size: 1.375rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.rank-visual-text p {
  color: var(--text-muted);
  font-size: 0.875rem;
}
@media (max-width: 1023px) {
  .rank-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .rank-visual {
    height: 300px;
  }
}
@media (max-width: 767px) {
  .rank-item {
    padding: 14px 12px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .rank-count {
    margin-left: 64px;
  }
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 16px;
}
.step-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px 28px;
  transition: all var(--transition);
}
.step-item:hover {
  border-color: rgba(0, 210, 127, 0.5);
  box-shadow: var(--shadow-accent);
  transform: translateY(-6px);
}
.step-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(0, 210, 127, 0.25);
  line-height: 1;
  margin-bottom: 14px;
  font-variant-numeric: tabular-nums;
  transition: color var(--transition);
}
.step-item:hover .step-num {
  color: var(--accent);
}
.step-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 210, 127, 0.1);
  border-radius: 12px;
  color: var(--accent);
  font-size: 1.125rem;
  margin-bottom: 16px;
}
.step-title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-text {
  color: var(--text-muted);
  font-size: 0.875rem;
}
@media (max-width: 1023px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item.active {
  border-color: rgba(0, 210, 127, 0.5);
  box-shadow: var(--shadow-accent);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--accent);
}
.faq-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: transform 0.3s ease, background var(--transition), border-color var(--transition);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: rgba(0, 210, 127, 0.1);
  border-color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 22px 20px;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  max-height: 300px;
}

.cta-section {
  padding: 96px 0;
}
.cta-box {
  background: var(--accent);
  border-radius: 22px;
  padding: 56px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  pointer-events: none;
}
.cta-copy h2 {
  color: var(--bg-primary);
  font-size: clamp(1.5rem, 2.4vw, 2.125rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 10px;
}
.cta-copy p {
  color: rgba(11, 21, 25, 0.7);
  font-size: 1rem;
  max-width: 480px;
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
@media (max-width: 1023px) {
  .cta-box {
    flex-direction: column;
    padding: 40px 32px;
    text-align: center;
  }
  .cta-copy p {
    margin: 0 auto;
  }
}
@media (max-width: 767px) {
  .cta-section {
    padding: 64px 0;
  }
  .cta-box {
    padding: 32px 24px;
  }
  .cta-actions {
    justify-content: center;
  }
}

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-brand-text {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-muted);
  font-size: 0.9375rem;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-service {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-service li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.9375rem;
}
.footer-service i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  text-align: center;
}
.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.875rem;
}
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .site-footer {
    padding-top: 48px;
  }
}

/* roulang page: category4 */
:root {
            --bg-deep: #0B1519;
            --bg-soft: #122127;
            --accent: #00D27F;
            --accent-hover: #33DF9C;
            --gold: #FFC74A;
            --text-main: #F1F5F2;
            --text-muted: #A7B3AD;
            --border: #263238;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-default: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 30px rgba(0, 210, 127, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-deep);
            color: var(--text-main);
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 21, 25, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .brand-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: var(--bg-deep);
            border-radius: 10px;
            font-size: 16px;
        }

        .brand-text {
            font-size: 1.02rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-link {
            position: relative;
            padding: 8px 12px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-muted);
            border-radius: 8px;
            transition: color 0.2s;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: -2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transition: transform 0.2s;
        }

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

        .nav-link:hover::after {
            transform: scaleX(0.4);
            opacity: 0.5;
        }

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

        .nav-link.active::after {
            transform: scaleX(1);
        }

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

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box input {
            width: 170px;
            height: 38px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0 14px 0 36px;
            font-size: 0.85rem;
            color: var(--text-main);
            transition: border-color 0.2s, background 0.2s;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.06);
        }

        .search-box i {
            position: absolute;
            left: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
            pointer-events: none;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 10px;
            color: var(--text-main);
            font-size: 1.05rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            border-radius: 10px;
            transition: all 0.2s;
            font-size: 0.95rem;
            padding: 11px 24px;
            white-space: nowrap;
        }

        .btn:active {
            transform: scale(0.96);
        }

        .btn-primary {
            background: var(--accent);
            color: var(--bg-deep);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-main);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            background: rgba(0, 210, 127, 0.08);
        }

        .btn-dark {
            background: var(--bg-deep);
            color: var(--accent);
        }

        .btn-dark:hover {
            background: var(--bg-soft);
            transform: translateY(-2px);
        }

        .btn-small {
            padding: 8px 16px;
            font-size: 0.88rem;
        }

        .page-hero {
            position: relative;
            background-color: var(--bg-deep);
            background-image: linear-gradient(rgba(11, 21, 25, 0.85), rgba(11, 21, 25, 0.94)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 96px 0 88px;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top left, rgba(0, 210, 127, 0.16), transparent 55%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 210, 127, 0.1);
            border: 1px solid rgba(0, 210, 127, 0.3);
            color: var(--accent);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3.4rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

        .hero-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 640px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            transition: color 0.2s;
        }

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

        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        .stats-bar {
            background: var(--bg-soft);
            border-bottom: 1px solid var(--border);
        }

        .stat-item {
            text-align: center;
            padding: 12px 0;
        }

        .stat-num {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 900;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.8vw, 2.1rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 0.98rem;
            margin-top: 10px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
        }

        .activity-card {
            position: relative;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.25s;
            display: flex;
            flex-direction: column;
        }

        .activity-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 210, 127, 0.5);
            transform: translateY(-4px);
        }

        .card-thumb {
            position: relative;
            overflow: hidden;
            height: 200px;
            border-radius: 14px 14px 0 0;
        }

        .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .activity-card:hover .card-thumb img {
            transform: scale(1.05);
        }

        .card-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 21, 25, 0.35), transparent 45%);
            pointer-events: none;
        }

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(11, 21, 25, 0.88);
            border: 1px solid rgba(255, 199, 74, 0.55);
            color: var(--gold);
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 999px;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }

        .card-body {
            padding: 22px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border);
            margin-bottom: 14px;
        }

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

        .card-meta i {
            color: var(--accent);
            font-size: 0.78rem;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent);
            transition: gap 0.2s;
        }

        .card-link:hover {
            gap: 10px;
        }

        .steps-section {
            background: var(--bg-soft);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .step-item {
            position: relative;
            padding: 28px 24px;
            background: var(--bg-deep);
            border: 1px solid var(--border);
            border-radius: 14px;
            transition: border-color 0.2s;
        }

        .step-item:hover {
            border-color: rgba(0, 210, 127, 0.4);
        }

        .step-num {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(0, 210, 127, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            font-variant-numeric: tabular-nums;
            margin-bottom: 18px;
        }

        .step-item h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        .notice-item {
            display: flex;
            gap: 16px;
            padding: 24px;
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 14px;
            transition: border-color 0.2s;
        }

        .notice-item:hover {
            border-color: rgba(0, 210, 127, 0.4);
        }

        .notice-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(0, 210, 127, 0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .notice-item h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .notice-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .faq-item {
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color 0.2s;
        }

        .faq-item.open {
            border-color: rgba(0, 210, 127, 0.5);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 1.02rem;
            font-weight: 700;
            cursor: pointer;
            text-align: left;
            width: 100%;
            color: var(--text-main);
            transition: background 0.2s;
        }

        .faq-question:hover {
            background: rgba(0, 210, 127, 0.04);
        }

        .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: rgba(0, 210, 127, 0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 20px 18px;
        }

        .cta-section {
            padding: 72px 0 80px;
        }

        .cta-block {
            background: var(--accent);
            color: var(--bg-deep);
            border-radius: 20px;
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            right: -40px;
            top: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .cta-block h2 {
            font-size: clamp(1.4rem, 2.6vw, 1.9rem);
            font-weight: 800;
            margin-bottom: 8px;
        }

        .cta-block p {
            font-size: 1rem;
            opacity: 0.85;
        }

        .site-footer {
            background: var(--bg-soft);
            border-top: 1px solid var(--border);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-top: 16px;
            line-height: 1.65;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color 0.2s;
        }

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

        .footer-service {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-service li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .footer-service i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 0.82rem;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }

            .search-box {
                display: none;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-inner {
                height: 64px;
            }

            .main-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(11, 21, 25, 0.98);
                border-bottom: 1px solid var(--border);
                flex-direction: column;
                padding: 16px;
                display: none;
                gap: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
                width: 100%;
            }

            .nav-link::after {
                left: 16px;
                right: auto;
                width: 24px;
            }

            .nav-toggle {
                display: flex;
            }

            .header-actions .btn-small {
                padding: 8px 14px;
                font-size: 0.82rem;
            }

            .page-hero {
                padding: 64px 0 56px;
            }

            .page-hero h1 {
                font-size: 1.9rem;
            }

            .hero-sub {
                font-size: 0.95rem;
            }

            .btn {
                padding: 10px 18px;
                font-size: 0.9rem;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .cta-block {
                padding: 40px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

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

        @media (max-width: 520px) {
            .brand-text {
                font-size: 0.9rem;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

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

            .page-hero {
                padding: 48px 0 44px;
            }

            .card-thumb {
                height: 180px;
            }
        }

/* roulang page: category5 */
:root {
  --bg-primary: #0B1519;
  --bg-secondary: #122127;
  --bg-elevated: #17282E;
  --accent: #00D27F;
  --accent-hover: #33DF9C;
  --gold: #FFC74A;
  --text-primary: #F1F5F2;
  --text-secondary: #A7B3AD;
  --border: #263238;
  --border-light: rgba(255,255,255,0.06);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(0,0,0,0.35);
  --shadow-accent: 0 8px 30px rgba(0,210,127,0.12);
  --container: 1280px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 768px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}
@media (min-width: 1024px) {
  .container {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }
}
/* ===== Header / Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 21, 25, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.brand-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: 8px;
  font-size: 1rem;
}
.brand-text {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  position: relative;
  padding: 0.5rem 0.85rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: color 0.2s ease;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-link:hover {
  color: var(--accent);
}
.nav-link:hover::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--text-primary);
}
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-search {
  position: relative;
  display: flex;
  align-items: center;
}
.nav-search input {
  width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.875rem;
  outline: none;
  transition: width 0.3s ease, padding 0.3s ease, background 0.3s ease, border 0.3s ease;
  border-radius: var(--radius-pill);
}
.nav-search input:focus {
  width: 180px;
  padding: 0.45rem 2.2rem 0.45rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 210, 127, 0.4);
}
.nav-search i {
  position: absolute;
  right: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  pointer-events: none;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
}
/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.5;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 210, 127, 0.25);
}
.btn-primary:active {
  transform: scale(0.96);
}
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: rgba(0, 210, 127, 0.08);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--bg-primary);
  color: var(--accent);
}
.btn-dark:hover {
  background: var(--bg-secondary);
  color: var(--accent-hover);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}
/* ===== Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-gold {
  background: rgba(255, 199, 74, 0.1);
  border: 1px solid rgba(255, 199, 74, 0.4);
  color: var(--gold);
}
/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 6.5rem 0 5rem;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(118deg, rgba(11, 21, 25, 0.97) 0%, rgba(11, 21, 25, 0.88) 65%, rgba(0, 210, 127, 0.15) 100%);
}
.page-hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 210, 127, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.page-hero-content {
  max-width: 760px;
  padding-left: 1rem;
}
.page-hero-title {
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  font-weight: 900;
  line-height: 1.15;
  margin: 1.2rem 0 1rem;
  letter-spacing: 0.01em;
}
.page-hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 1.8rem;
}
.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.2rem;
}
.hero-meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}
.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: rgba(18, 33, 39, 0.7);
  border: 1px solid var(--border);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
}
.hero-meta-item i {
  color: var(--accent);
}
/* ===== Sections ===== */
.section {
  padding: 5rem 0;
}
@media (min-width: 768px) {
  .section {
    padding: 6rem 0;
  }
}
.section-alt {
  background: var(--bg-secondary);
}
.section-head {
  margin-bottom: 2.5rem;
  max-width: 640px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-title {
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 0.7rem;
}
.section-desc {
  color: var(--text-secondary);
  line-height: 1.7;
}
/* ===== Feature Track ===== */
.features-track {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1.8rem;
  padding: 1.8rem 0.5rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.feature-item:hover {
  background: rgba(0, 210, 127, 0.03);
}
.feature-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  min-width: 3.5rem;
  transition: transform 0.2s;
}
.feature-item:hover .feature-num {
  transform: translateX(6px);
}
.feature-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.feature-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}
@media (min-width: 768px) {
  .features-track {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-top: 1px solid var(--border);
  }
  .feature-item {
    display: block;
    padding: 1.8rem 1.5rem 1.5rem 0;
    border-bottom: 0;
    border-right: 1px solid var(--border);
  }
  .feature-item:last-child {
    border-right: 0;
  }
  .feature-num {
    display: block;
    margin-bottom: 1.2rem;
  }
}
/* ===== Help Grid ===== */
.help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .help-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .help-grid {
    grid-template-columns: repeat(12, 1fr);
  }
  .help-card:first-child {
    grid-column: span 7;
  }
  .help-card:nth-child(2) {
    grid-column: span 5;
  }
  .help-card:nth-child(3) {
    grid-column: span 5;
  }
  .help-card:nth-child(4) {
    grid-column: span 7;
  }
}
.help-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
  display: flex;
  flex-direction: column;
}
.help-card:hover {
  border-color: rgba(0, 210, 127, 0.5);
  box-shadow: var(--shadow-accent);
  transform: translateY(-3px);
}
.help-card-img {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.help-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.help-card:hover .help-card-img img {
  transform: scale(1.04);
}
.help-card-body {
  padding: 1.4rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.help-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.help-card-body p {
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.7;
  margin-bottom: 1.2rem;
  flex: 1;
}
.help-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.2s;
}
.help-card-link:hover {
  gap: 0.7rem;
}
/* ===== Process ===== */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.process-step {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.4rem;
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
}
.process-step:hover {
  border-color: rgba(0, 210, 127, 0.5);
  transform: translateY(-3px);
}
.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 210, 127, 0.12);
  color: var(--accent);
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 1rem;
  font-variant-numeric: tabular-nums;
}
.process-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.process-step p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
}
/* ===== Info Cards ===== */
.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}
@media (min-width: 768px) {
  .info-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.info-card {
  display: flex;
  gap: 1rem;
  padding: 1.4rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s;
}
.info-card:hover {
  border-color: rgba(0, 210, 127, 0.4);
}
.info-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(0, 210, 127, 0.1);
  color: var(--accent);
  font-size: 1.1rem;
}
.info-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.info-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
}
/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item.open {
  border-color: rgba(0, 210, 127, 0.4);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem 1.4rem;
  background: transparent;
  border: 0;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 650;
  cursor: pointer;
  text-align: left;
  gap: 1rem;
  transition: color 0.2s;
}
.faq-question:hover {
  color: var(--accent);
}
.faq-icon {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 0.9rem;
  transition: transform 0.25s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 260px;
}
.faq-answer-inner {
  padding: 0 1.4rem 1.2rem;
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.7;
}
/* ===== CTA Panel ===== */
.cta-panel {
  background: var(--accent);
  border-radius: 24px;
  padding: 2.8rem 2rem;
  color: var(--bg-primary);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.cta-panel::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  background: rgba(11, 21, 25, 0.08);
  border-radius: 50%;
  pointer-events: none;
}
.cta-copy {
  max-width: 480px;
  position: relative;
  z-index: 1;
}
.cta-copy h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 900;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.cta-copy p {
  color: rgba(11, 21, 25, 0.75);
  line-height: 1.7;
  font-size: 0.95rem;
}
.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}
.cta-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(11, 21, 25, 0.08);
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem;
  color: rgba(11, 21, 25, 0.7);
  margin-top: 0.7rem;
}
.cta-chip i {
  color: var(--bg-primary);
}
/* ===== Footer ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  padding: 3.5rem 0 2.5rem;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
    gap: 2rem;
  }
}
.footer-brand .brand {
  margin-bottom: 0.8rem;
}
.footer-brand-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-service {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.footer-service li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.footer-service i {
  color: var(--accent);
  margin-top: 0.3rem;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.4rem 0;
}
.footer-bottom p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-align: center;
}
/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-search input {
    width: 140px;
    padding: 0.45rem 2.2rem 0.45rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
  }
  .nav-search input:focus {
    width: 140px;
  }
}
@media (max-width: 767px) {
  .site-header {
    position: sticky;
  }
  .nav-container {
    height: 64px;
  }
  .brand-text {
    font-size: 1rem;
  }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .nav-actions .nav-search {
    display: none;
  }
  .nav-actions .btn {
    display: none;
  }
  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(11, 21, 25, 0.98);
    padding: 0.8rem 1rem 1.2rem;
    border-bottom: 1px solid var(--border);
    display: none;
    gap: 0.25rem;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    padding: 0.7rem 0.8rem;
    font-size: 0.95rem;
    border-radius: 8px;
  }
  .nav-link::after {
    left: 0;
    right: 0;
  }
  .nav-link.active {
    background: rgba(0, 210, 127, 0.08);
  }
  .page-hero {
    padding: 3.5rem 0 3rem;
  }
  .page-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-meta-list {
    flex-direction: column;
    gap: 0.5rem;
  }
  .cta-panel {
    padding: 2rem 1.4rem;
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }
  .footer-grid {
    padding: 2.5rem 0 2rem;
  }
}
@media (max-width: 520px) {
  .section {
    padding: 3.5rem 0;
  }
  .feature-item {
    flex-direction: column;
    gap: 0.75rem;
  }
  .feature-num {
    font-size: 1.7rem;
  }
  .help-card-img {
    height: 170px;
  }
  .info-card {
    flex-direction: column;
  }
  .info-icon {
    width: 40px;
    height: 40px;
  }
}