/* roulang page: index */
:root{
  --bg-primary:#060D17;
  --bg-secondary:#081422;
  --bg-card:rgba(255,255,255,0.045);
  --bg-card-hover:rgba(255,255,255,0.07);
  --accent-blue:#00D1FF;
  --accent-blue-dark:#00A3FF;
  --accent-red:#E6002E;
  --text-primary:#E8F0F8;
  --text-secondary:#8FA3B8;
  --text-muted:#5D7287;
  --border-color:rgba(255,255,255,0.08);
  --border-hover:rgba(0,200,255,0.35);
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.28);
  --shadow-glow-blue:0 0 20px rgba(0,200,255,0.45);
  --shadow-glow-red:0 0 20px rgba(230,0,46,0.4);
  --font-main:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);
  background-attachment:fixed;
  color:var(--text-primary);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit;transition:color .25s ease,border-color .25s ease,background .25s ease}
a:hover{color:var(--accent-blue)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
.section-pad{padding-top:90px;padding-bottom:90px}
.section-title{font-size:32px;font-weight:700;color:var(--text-primary);text-align:center;margin-bottom:16px;letter-spacing:-0.5px;line-height:1.3}
.section-subtitle{font-size:16px;color:var(--text-secondary);text-align:center;max-width:640px;margin:0 auto 48px;line-height:1.8}
.glass-card{
  background:var(--bg-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--border-color);
  border-radius:var(--radius-lg);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.glass-card:hover{
  border-color:var(--border-hover);
  transform:translateY(-4px);
  box-shadow:0 12px 40px rgba(0,0,0,0.4),0 0 24px rgba(0,200,255,0.12);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:15px;
  padding:12px 26px;
  border:none;
  transition:all .3s ease;
  cursor:pointer;
}
.btn-primary-custom{
  background:linear-gradient(135deg,var(--accent-blue) 0%,var(--accent-blue-dark) 100%);
  color:#062033;
  box-shadow:var(--shadow-glow-blue);
  font-weight:700;
}
.btn-primary-custom:hover{
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(0,200,255,0.6);
  color:#062033;
}
.btn-cta-red{
  background:linear-gradient(135deg,var(--accent-red) 0%,#B80020 100%);
  color:#fff;
  box-shadow:var(--shadow-glow-red);
  font-weight:700;
  padding:10px 22px;
}
.btn-cta-red:hover{
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(230,0,46,0.6);
  color:#fff;
}
.btn-outline-custom{
  background:transparent;
  border:1px solid rgba(255,255,255,0.2);
  color:var(--text-primary);
  padding:12px 26px;
}
.btn-outline-custom:hover{
  border-color:var(--accent-blue);
  color:var(--accent-blue);
  box-shadow:0 0 16px rgba(0,200,255,0.2);
  transform:translateY(-2px);
}
.badge-custom{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 14px;
  border-radius:10px;
  font-size:13px;
  font-weight:500;
  background:rgba(0,200,255,0.12);
  color:#7FDFFF;
  border:1px solid rgba(0,200,255,0.25);
}
.badge-red{
  background:rgba(230,0,46,0.15);
  color:#FF6B85;
  border-color:rgba(230,0,46,0.3);
}
/* ===== 导航栏 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(6,13,23,0.88);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid transparent;
  background-image:linear-gradient(rgba(6,13,23,0.92),rgba(6,13,23,0.92)),linear-gradient(90deg,var(--accent-blue),var(--accent-red));
  background-origin:border-box;
  background-clip:padding-box,border-box;
  border-bottom:1px solid transparent;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--accent-blue) 20%,var(--accent-red) 80%,transparent);
  opacity:0.7;
}
.main-nav{
  min-height:72px;
  padding-top:0;
  padding-bottom:0;
}
.navbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  letter-spacing:0.5px;
  padding:0;
}
.navbar-brand:hover{
  color:var(--accent-blue);
}
.brand-icon{
  width:38px;
  height:38px;
  flex-shrink:0;
}
.main-nav .nav-link{
  color:var(--text-primary);
  font-size:15px;
  font-weight:500;
  padding:10px 16px;
  border-radius:8px;
  position:relative;
  margin:0 2px;
  transition:color .25s,background .25s;
}
.main-nav .nav-link:hover{
  color:var(--accent-blue);
  background:rgba(0,200,255,0.08);
}
.main-nav .nav-link.active{
  color:var(--accent-blue);
  text-shadow:0 0 12px rgba(0,200,255,0.5);
}
.main-nav .nav-link.active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  background:linear-gradient(90deg,var(--accent-blue),transparent);
  border-radius:2px;
  box-shadow:0 0 8px rgba(0,200,255,0.5);
}
.navbar-toggler{
  border-color:rgba(255,255,255,0.25);
  border-radius:8px;
  padding:6px 10px;
}
.navbar-toggler:focus{
  box-shadow:0 0 0 3px rgba(0,200,255,0.2);
}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
  width:24px;
  height:24px;
}
.nav-cta-btn{
  margin-left:14px;
}
/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:640px;
  display:flex;
  align-items:center;
  padding-top:80px;
  padding-bottom:80px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(6,13,23,0.96) 40%,rgba(6,13,23,0.65) 70%,rgba(6,13,23,0.45));
  z-index:1;
}
.hero::after{
  content:"";
  position:absolute;
  top:-20%;
  right:-10%;
  width:500px;
  height:500px;
  background:radial-gradient(circle,rgba(0,200,255,0.15) 0%,transparent 65%);
  z-index:1;
  pointer-events:none;
}
.hero .container{
  position:relative;
  z-index:2;
}
.hero-content{
  max-width:640px;
}
.hero .hero-tagline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(0,200,255,0.1);
  border:1px solid rgba(0,200,255,0.25);
  color:#7FDFFF;
  padding:6px 16px;
  border-radius:100px;
  font-size:13px;
  font-weight:600;
  margin-bottom:22px;
  letter-spacing:1px;
}
.hero h1{
  font-size:46px;
  font-weight:700;
  line-height:1.25;
  color:var(--text-primary);
  margin-bottom:20px;
  letter-spacing:-1px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--accent-blue) 0%,var(--accent-blue-dark) 60%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero .hero-desc{
  font-size:17px;
  color:var(--text-secondary);
  line-height:1.8;
  margin-bottom:36px;
  max-width:540px;
}
.hero .hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero .hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-top:40px;
}
.hero .hero-points .point{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text-secondary);
  font-size:14px;
}
.hero .hero-points .point i{
  color:var(--accent-blue);
  font-size:15px;
}
.hero-visual{
  position:absolute;
  right:60px;
  bottom:40px;
  width:480px;
  z-index:2;
  display:flex;
  justify-content:center;
}
.hero-visual .hero-card{
  width:100%;
  background:rgba(8,20,34,0.6);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:20px;
  padding:28px;
  backdrop-filter:blur(16px);
  box-shadow:0 16px 50px rgba(0,0,0,0.5);
}
.hero-card .card-header-line{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:22px;
}
.hero-card .card-header-line span{
  font-size:14px;
  color:var(--text-secondary);
}
.hero-card .live-dot{
  width:8px;
  height:8px;
  background:var(--accent-red);
  border-radius:50%;
  animation:pulse 1.5s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(230,0,46,0.5)}
  50%{opacity:0.7;box-shadow:0 0 0 8px rgba(230,0,46,0)}
}
.hero-card .chart-bars{
  display:flex;
  align-items:flex-end;
  gap:10px;
  height:120px;
}
.hero-card .bar{
  flex:1;
  background:linear-gradient(180deg,var(--accent-blue) 0%,rgba(0,200,255,0.15) 100%);
  border-radius:6px 6px 2px 2px;
  min-width:14px;
  transition:height .6s ease;
}
.hero-card .bar-item{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
}
.hero-card .bar-item .bar{
  width:100%;
}
.hero-card .bar-label{
  font-size:11px;
  color:var(--text-muted);
  white-space:nowrap;
}
.hero-card .card-stats{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:10px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,0.06);
}
.hero-card .stat-item .num{
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  font-variant-numeric:tabular-nums;
}
.hero-card .stat-item .lbl{
  font-size:12px;
  color:var(--text-muted);
}
/* ===== 三步上手 ===== */
.steps-section{
  position:relative;
  padding-top:90px;
  padding-bottom:90px;
}
.steps-section::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:720px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,200,255,0.3),transparent);
}
.steps-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:24px;
  margin-top:48px;
  position:relative;
}
.steps-grid::before{
  content:"";
  position:absolute;
  top:64px;
  left:16%;
  right:16%;
  height:2px;
  background:linear-gradient(90deg,var(--accent-blue),rgba(0,200,255,0.3),var(--accent-red));
  border-radius:2px;
  opacity:0.4;
  z-index:0;
}
.step-item{
  position:relative;
  z-index:1;
  background:var(--bg-card);
  backdrop-filter:blur(16px);
  border:1px solid var(--border-color);
  border-radius:20px;
  padding:36px 28px 32px;
  text-align:left;
  transition:all .3s ease;
}
.step-item:hover{
  border-color:var(--border-hover);
  transform:translateY(-4px);
  box-shadow:0 12px 36px rgba(0,0,0,0.35),0 0 20px rgba(0,200,255,0.08);
}
.step-num{
  font-size:52px;
  font-weight:800;
  color:transparent;
  -webkit-text-stroke:2px rgba(0,200,255,0.35);
  line-height:1;
  margin-bottom:20px;
  font-variant-numeric:tabular-nums;
}
.step-item:nth-child(3) .step-num{
  -webkit-text-stroke:2px rgba(230,0,46,0.4);
}
.step-icon{
  width:48px;
  height:48px;
  border-radius:12px;
  background:rgba(0,200,255,0.1);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
  color:var(--accent-blue);
  font-size:20px;
}
.step-item:nth-child(3) .step-icon{
  background:rgba(230,0,46,0.1);
  color:var(--accent-red);
}
.step-title{
  font-size:20px;
  font-weight:700;
  margin-bottom:12px;
  color:var(--text-primary);
}
.step-desc{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
}
/* ===== 案例证明 ===== */
.cases-section{
  position:relative;
  padding-top:90px;
  padding-bottom:60px;
  background:rgba(8,20,34,0.4);
}
.cases-section::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:30px 30px;
  pointer-events:none;
}
.case-list{
  max-width:960px;
  margin:0 auto;
}
.case-block{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:32px;
  align-items:flex-start;
  padding:32px 0;
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:border-color .3s ease;
}
.case-block:last-child{
  border-bottom:none;
}
.case-block:hover{
  border-bottom-color:rgba(0,200,255,0.2);
}
.case-image{
  width:120px;
  height:120px;
  border-radius:16px;
  overflow:hidden;
  position:relative;
  background:rgba(255,255,255,0.05);
}
.case-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.case-block:hover .case-image img{
  transform:scale(1.05);
}
.case-block:nth-child(even){
  grid-template-columns:1fr 120px;
}
.case-block:nth-child(even) .case-image{
  order:2;
}
.case-block:nth-child(even) .case-body{
  order:1;
  text-align:right;
}
.case-body h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:8px;
  color:var(--text-primary);
}
.case-body .case-tags{
  display:flex;
  gap:8px;
  margin-bottom:10px;
  flex-wrap:wrap;
}
.case-block:nth-child(even) .case-tags{
  justify-content:flex-end;
}
.case-body .case-desc{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
}
.case-body .case-metric{
  margin-top:10px;
  font-size:14px;
  color:var(--accent-blue);
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
/* 数据统计条 */
.stats-bar{
  background:linear-gradient(90deg,rgba(0,200,255,0.08) 0%,rgba(230,0,46,0.08) 100%);
  border-top:1px solid rgba(255,255,255,0.05);
  border-bottom:1px solid rgba(255,255,255,0.05);
  padding:48px 0;
  margin-top:30px;
}
.stats-bar .container{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stats-item{
  text-align:center;
  padding:10px;
}
.stats-item .num{
  font-size:42px;
  font-weight:800;
  color:transparent;
  background:linear-gradient(135deg,var(--accent-blue) 0%,#fff 50%,var(--accent-red) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stats-item .lbl{
  font-size:14px;
  color:var(--text-secondary);
  margin-top:8px;
}
/* ===== 资讯区 ===== */
.news-section{
  padding-top:90px;
  padding-bottom:90px;
  position:relative;
}
.news-section::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:720px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(230,0,46,0.3),transparent);
}
.news-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  margin-top:40px;
}
.news-card{
  padding:28px 30px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.news-card.featured{
  grid-row:span 2;
  padding:32px;
}
.news-card .news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.news-card .news-date{
  font-size:13px;
  color:var(--text-muted);
  font-variant-numeric:tabular-nums;
}
.news-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--text-primary);
  line-height:1.5;
  transition:color .25s;
}
.news-card.featured h3{
  font-size:24px;
  font-weight:700;
}
.news-card h3 a{
  color:inherit;
}
.news-card h3 a:hover{
  color:var(--accent-blue);
}
.news-card .news-excerpt{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
  flex:1;
}
.news-card .news-link{
  font-size:14px;
  color:var(--accent-blue);
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-card .news-link i{
  transition:transform .25s;
}
.news-card .news-link:hover i{
  transform:translateX(4px);
}
.empty-state{
  grid-column:1/-1;
  border:1px dashed rgba(255,255,255,0.2);
  border-radius:20px;
  padding:60px;
  text-align:center;
  color:var(--text-muted);
  font-size:15px;
  background:rgba(255,255,255,0.02);
}
/* ===== FAQ ===== */
.faq-section{
  padding-top:90px;
  padding-bottom:90px;
  background:rgba(8,20,34,0.4);
  position:relative;
}
.faq-container{
  max-width:800px;
  margin:0 auto;
}
.accordion-item{
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:16px !important;
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.accordion-item:hover{
  border-color:var(--border-hover);
}
.accordion-item:has(.accordion-collapse.show){
  border-color:rgba(230,0,46,0.25);
  box-shadow:0 0 20px rgba(230,0,46,0.08);
}
.accordion-button{
  background:var(--bg-card);
  color:var(--text-primary);
  font-weight:600;
  font-size:15px;
  padding:20px 24px;
  border:none;
}
.accordion-button:not(.collapsed){
  background:var(--bg-card);
  color:var(--text-primary);
  box-shadow:none;
  border-left:3px solid var(--accent-red);
}
.accordion-button:focus{
  box-shadow:0 0 0 3px rgba(0,200,255,0.15);
  z-index:1;
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(0,209,255,0.7)'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  transition:transform .3s ease;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
}
.accordion-body{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.8;
  padding:8px 24px 24px;
  background:var(--bg-card);
}
/* ===== CTA区域 ===== */
.cta-section{
  position:relative;
  padding-top:90px;
  padding-bottom:90px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(6,13,23,0.9);
  z-index:1;
}
.cta-section::after{
  content:"";
  position:absolute;
  bottom:-30%;
  left:50%;
  transform:translateX(-50%);
  width:600px;
  height:300px;
  background:radial-gradient(ellipse,rgba(230,0,46,0.15) 0%,transparent 60%);
  z-index:1;
}
.cta-section .container{
  position:relative;
  z-index:2;
}
.cta-wrap{
  max-width:900px;
  margin:0 auto;
  text-align:center;
}
.cta-wrap h2{
  font-size:34px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text-primary);
}
.cta-wrap .cta-sub{
  font-size:16px;
  color:var(--text-secondary);
  margin-bottom:40px;
  max-width:560px;
  margin-left:auto;
  margin-right:auto;
}
.cta-form{
  background:rgba(8,20,34,0.6);
  backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:24px;
  padding:40px;
  text-align:left;
  box-shadow:0 16px 50px rgba(0,0,0,0.4);
}
.cta-form .form-label{
  color:var(--text-secondary);
  font-size:14px;
  font-weight:500;
  margin-bottom:8px;
}
.cta-form .form-control,.cta-form .form-select{
  background:rgba(6,13,23,0.7);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:10px;
  color:var(--text-primary);
  font-size:15px;
  padding:12px 16px;
  height:auto;
  transition:border-color .25s,box-shadow .25s;
}
.cta-form .form-control::placeholder{
  color:var(--text-muted);
}
.cta-form .form-control:focus,.cta-form .form-select:focus{
  background:rgba(6,13,23,0.9);
  border-color:var(--accent-blue);
  box-shadow:0 0 0 3px rgba(0,200,255,0.15);
  color:var(--text-primary);
}
.cta-form .form-select option{
  background:#0A1628;
  color:var(--text-primary);
}
.cta-form .btn-cta-red{
  width:100%;
  padding:14px;
  font-size:16px;
  margin-top:8px;
}
.form-success{
  display:none;
  text-align:center;
  padding:40px;
  border:1px dashed rgba(0,200,255,0.3);
  border-radius:16px;
  background:rgba(0,200,255,0.05);
}
.form-success .icon{
  font-size:40px;
  color:var(--accent-blue);
  margin-bottom:14px;
}
.form-success .text{
  color:var(--text-primary);
  font-size:16px;
}
/* ===== 页脚 ===== */
.site-footer{
  background:#050C14;
  border-top:1px solid rgba(255,255,255,0.05);
  padding-top:70px;
  padding-bottom:30px;
}
.footer-brand{
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.footer-brand .brand-icon{
  width:32px;
  height:32px;
}
.footer-desc{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
  max-width:320px;
}
.footer-col-title{
  font-size:16px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer-col-title::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:28px;
  height:2px;
  background:linear-gradient(90deg,var(--accent-blue),transparent);
  border-radius:2px;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:var(--text-secondary);
  font-size:14px;
  transition:all .25s;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.footer-links a i{
  font-size:12px;
  color:var(--text-muted);
  transition:transform .25s,color .25s;
}
.footer-links a:hover{
  color:var(--accent-blue);
  padding-left:4px;
}
.footer-links a:hover i{
  color:var(--accent-blue);
  transform:translateX(2px);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--text-secondary);
  font-size:14px;
  margin-bottom:14px;
}
.footer-contact i{
  color:var(--accent-blue);
  font-size:16px;
  width:20px;
  text-align:center;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);
  margin-top:50px;
  padding-top:22px;
  text-align:center;
  color:var(--text-muted);
  font-size:13px;
}
.footer-bottom a{
  color:var(--text-muted);
}
.footer-bottom a:hover{
  color:var(--accent-blue);
}
/* ===== 返回顶部 ===== */
.back-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(8,20,34,0.8);
  border:1px solid rgba(255,255,255,0.1);
  color:var(--accent-blue);
  font-size:18px;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:999;
  cursor:pointer;
  transition:all .3s ease;
  opacity:0;
  pointer-events:none;
}
.back-top.show{
  opacity:1;
  pointer-events:auto;
}
.back-top:hover{
  border-color:var(--accent-blue);
  box-shadow:0 0 16px rgba(0,200,255,0.3);
  transform:translateY(-4px);
}
/* ===== 响应式 ===== */
@media (max-width:1199px){
  .hero-visual{width:400px;right:30px}
  .hero h1{font-size:40px}
}
@media (max-width:991px){
  .section-pad{padding-top:70px;padding-bottom:70px}
  .section-title{font-size:28px}
  .site-header{
    position:relative;
  }
  .main-nav .navbar-collapse{
    background:rgba(6,13,23,0.98);
    border-radius:0 0 16px 16px;
    padding:16px 12px;
    margin-top:8px;
    border-bottom:1px solid rgba(255,255,255,0.08);
  }
  .main-nav .nav-link{
    padding:12px 16px;
    border-radius:10px;
  }
  .main-nav .nav-link::after{
    display:none;
  }
  .nav-cta-btn{
    margin-left:0;
    margin-top:8px;
  }
  .nav-cta-btn .btn{
    width:100%;
  }
  .hero{
    min-height:auto;
    padding-top:60px;
    padding-bottom:60px;
  }
  .hero h1{
    font-size:34px;
  }
  .hero-visual{
    position:relative;
    right:auto;
    bottom:auto;
    width:100%;
    max-width:440px;
    margin:50px auto 0;
  }
  .hero .container{
    display:flex;
    flex-direction:column;
  }
  .steps-grid{
    grid-template-columns:1fr;
    gap:20px;
  }
  .steps-grid::before{
    display:none;
  }
  .step-item{
    padding:28px 24px;
  }
  .case-block,.case-block:nth-child(even){
    grid-template-columns:1fr;
    gap:18px;
  }
  .case-block:nth-child(even) .case-image{
    order:0;
  }
  .case-block:nth-child(even) .case-body{
    text-align:left;
  }
  .case-block:nth-child(even) .case-tags{
    justify-content:flex-start;
  }
  .case-image{
    width:100%;
    height:160px;
  }
  .stats-bar .container{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .stats-item .num{
    font-size:34px;
  }
  .news-grid{
    grid-template-columns:1fr;
  }
  .news-card.featured{
    grid-row:auto;
  }
  .cta-form{
    padding:28px 20px;
  }
  .cta-wrap h2{
    font-size:28px;
  }
}
@media (max-width:767px){
  .container{
    padding-left:18px;
    padding-right:18px;
  }
  .section-title{
    font-size:24px;
  }
  .section-subtitle{
    font-size:15px;
  }
  .hero h1{
    font-size:28px;
  }
  .hero-desc{
    font-size:15px;
  }
  .hero-actions .btn{
    padding:10px 18px;
    font-size:14px;
  }
  .hero-points{
    flex-direction:column;
    gap:10px;
  }
  .step-num{
    font-size:42px;
  }
  .case-body h3{
    font-size:18px;
  }
  .stats-item .num{
    font-size:28px;
  }
  .stats-item .lbl{
    font-size:13px;
  }
  .footer-col{
    margin-bottom:32px;
  }
  .site-footer{
    padding-top:50px;
  }
  .back-top{
    right:16px;
    bottom:16px;
  }
}

/* roulang page: category1 */
:root {
      --bg-primary: #060D17;
      --bg-secondary: #081422;
      --bg-card: rgba(255, 255, 255, 0.04);
      --bg-card-hover: rgba(255, 255, 255, 0.06);
      --border-glass: rgba(255, 255, 255, 0.08);
      --border-hover: rgba(0, 200, 255, 0.35);
      --accent-blue: #00D1FF;
      --accent-blue-dark: #00A3FF;
      --accent-red: #E6002E;
      --text-primary: #E8F0F8;
      --text-secondary: #8FA3B8;
      --text-muted: #5A7186;
      --radius-lg: 22px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
      --glow-blue: 0 0 20px rgba(0, 200, 255, 0.45);
      --glow-red: 0 0 20px rgba(230, 0, 46, 0.45);
      --transition-base: all .3s ease;
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
      color: var(--text-primary);
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: var(--text-secondary);
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--accent-blue);
      text-shadow: 0 0 8px rgba(0, 209, 255, .35);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    h1, h2, h3, h4, h5, h6 {
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1.3;
    }
    p {
      margin: 0;
    }
    .container {
      max-width: 1200px;
    }
    .btn {
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: var(--transition-base);
      border: 1px solid transparent;
      padding: 12px 28px;
      font-size: 15px;
      line-height: 1.5;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn:focus {
      outline: none;
      box-shadow: 0 0 0 4px rgba(0, 209, 255, .18);
    }
    .btn-cta-blue {
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
      color: #062033 !important;
      border: none;
      box-shadow: 0 0 20px rgba(0, 200, 255, .35);
    }
    .btn-cta-blue:hover {
      box-shadow: 0 0 32px rgba(0, 200, 255, .55);
      transform: translateY(-2px);
      color: #062033;
    }
    .btn-cta-red {
      background: linear-gradient(135deg, #ff1744, #c40024);
      color: #fff !important;
      border: none;
      box-shadow: 0 0 18px rgba(230, 0, 46, .38);
    }
    .btn-cta-red:hover {
      box-shadow: 0 0 30px rgba(230, 0, 46, .58);
      transform: translateY(-2px);
      color: #fff;
      background: linear-gradient(135deg, #ff2b50, #d5002c);
    }
    .btn-outline-glass {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, .22);
      color: var(--text-primary);
    }
    .btn-outline-glass:hover {
      border-color: rgba(0, 209, 255, .6);
      box-shadow: 0 0 18px rgba(0, 209, 255, .18);
      color: var(--accent-blue);
      transform: translateY(-2px);
    }
    .btn-lg {
      padding: 14px 36px;
      font-size: 16px;
    }
    .btn-sm {
      padding: 8px 18px;
      font-size: 14px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 10px;
      background: rgba(0, 200, 255, .1);
      border: 1px solid rgba(0, 200, 255, .22);
      color: var(--accent-blue);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .5px;
      margin-bottom: 18px;
    }
    .section-tag::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent-blue);
      box-shadow: 0 0 8px rgba(0, 209, 255, .8);
    }
    .section-head {
      text-align: center;
      margin-bottom: 56px;
    }
    .section-head h2 {
      font-size: 34px;
      margin-bottom: 14px;
    }
    .section-head p {
      color: var(--text-secondary);
      max-width: 640px;
      margin: 0 auto;
      font-size: 16px;
    }
    .navbar-brand .brand-icon {
      width: 36px;
      height: 36px;
      margin-right: 6px;
      flex-shrink: 0;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(6, 13, 23, .82);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: none;
      box-shadow: 0 1px 0 rgba(255, 255, 255, .06), 0 4px 24px rgba(0, 0, 0, .25);
    }
    .site-header::after {
      content: '';
      display: block;
      height: 1px;
      background: linear-gradient(90deg, rgba(0, 209, 255, .6), rgba(230, 0, 46, .6));
      box-shadow: 0 0 12px rgba(0, 209, 255, .25);
    }
    .main-nav {
      min-height: 72px;
      padding: 8px 0;
    }
    .navbar-brand {
      font-size: 21px;
      font-weight: 700;
      color: var(--text-primary) !important;
      display: flex;
      align-items: center;
      letter-spacing: .2px;
      white-space: nowrap;
    }
    .navbar-brand:hover {
      color: var(--text-primary) !important;
      text-shadow: 0 0 14px rgba(0, 209, 255, .3);
    }
    .navbar-toggler {
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 8px;
      padding: 6px 10px;
      background: transparent;
    }
    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(0, 209, 255, .18);
    }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(232,240,248,.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    .navbar-nav .nav-item {
      margin: 0 4px;
    }
    .navbar-nav .nav-link {
      color: var(--text-secondary) !important;
      font-size: 15px;
      font-weight: 500;
      padding: 9px 18px !important;
      border-radius: 8px;
      transition: var(--transition-base);
      position: relative;
    }
    .navbar-nav .nav-link:hover {
      color: var(--accent-blue) !important;
      background: rgba(0, 200, 255, .08);
      text-shadow: 0 0 12px rgba(0, 209, 255, .5);
    }
    .navbar-nav .nav-link.active {
      color: var(--accent-blue) !important;
      font-weight: 600;
      text-shadow: 0 0 14px rgba(0, 209, 255, .6);
    }
    .navbar-nav .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 22px;
      height: 2px;
      background: var(--accent-blue);
      border-radius: 2px;
      box-shadow: 0 0 10px rgba(0, 209, 255, .8);
    }
    .nav-cta-btn {
      margin-left: 14px;
    }
    .nav-cta-btn .btn {
      padding: 9px 22px;
      font-size: 14px;
      border-radius: 10px;
    }
    @media (max-width: 991.98px) {
      .navbar-nav {
        padding: 16px 0 8px;
      }
      .navbar-nav .nav-item {
        margin: 3px 0;
      }
      .navbar-nav .nav-link {
        padding: 12px 16px !important;
        border-radius: 10px;
      }
      .nav-cta-btn {
        margin-left: 0;
        margin-top: 8px;
      }
      .nav-cta-btn .btn {
        width: 100%;
      }
      .navbar-collapse {
        background: rgba(6, 13, 23, .96);
        border-radius: 14px;
        border: 1px solid rgba(255, 255, 255, .06);
        padding: 0 16px;
        margin-top: 8px;
        box-shadow: 0 16px 40px rgba(0, 0, 0, .4);
      }
    }
    .page-hero {
      position: relative;
      min-height: 440px;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      display: flex;
      align-items: center;
      padding: 80px 0 70px;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(105deg, rgba(6, 13, 23, .97) 20%, rgba(6, 13, 23, .83) 55%, rgba(6, 13, 23, .55) 100%);
    }
    .page-hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 75% 45%, rgba(0, 209, 255, .1), transparent 55%),
                  radial-gradient(ellipse at 15% 80%, rgba(230, 0, 46, .08), transparent 45%);
      pointer-events: none;
    }
    .page-hero .container {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 20px;
      background: rgba(230, 0, 46, .14);
      border: 1px solid rgba(230, 0, 46, .28);
      color: #ff6b7c;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 20px;
      letter-spacing: .4px;
    }
    .hero-badge .pulse-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--accent-red);
      box-shadow: 0 0 10px rgba(230, 0, 46, .7);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.5); opacity: .6; }
    }
    .page-hero h1 {
      font-size: 44px;
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.22;
      letter-spacing: .3px;
    }
    .hero-lead {
      font-size: 17px;
      line-height: 1.8;
      color: var(--text-secondary);
      max-width: 600px;
      margin-bottom: 34px;
    }
    .hero-lead strong {
      color: var(--text-primary);
      font-weight: 600;
    }
    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-stats {
      border-top: 1px solid rgba(255, 255, 255, .07);
      padding-top: 24px;
      max-width: 520px;
    }
    .hero-stats .stat-num {
      font-size: 28px;
      font-weight: 700;
      font-variant-numeric: tabular-nums;
      color: var(--accent-blue);
      text-shadow: 0 0 18px rgba(0, 209, 255, .3);
      display: block;
      line-height: 1.2;
    }
    .hero-stats .stat-label {
      font-size: 13px;
      color: var(--text-secondary);
      display: block;
      margin-top: 6px;
    }
    .hero-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .08);
      box-shadow: 0 20px 60px rgba(0, 0, 0, .35);
    }
    .hero-media img {
      width: 100%;
      height: 300px;
      object-fit: cover;
    }
    .hero-media::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 50%, rgba(6, 13, 23, .35));
      pointer-events: none;
    }
    .section-pad {
      padding: 90px 0;
    }
    .solution-section {
      padding: 100px 0 20px;
      position: relative;
    }
    .solution-block {
      padding: 38px 0;
    }
    .solution-block .block-index {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(0, 200, 255, .1);
      border: 1px solid rgba(0, 200, 255, .2);
      color: var(--accent-blue);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      box-shadow: 0 0 16px rgba(0, 200, 255, .1);
    }
    .solution-block h3 {
      font-size: 24px;
      margin-bottom: 14px;
      line-height: 1.35;
    }
    .solution-block .desc {
      color: var(--text-secondary);
      font-size: 15.5px;
      line-height: 1.8;
      margin-bottom: 18px;
    }
    .solution-features {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .solution-features li {
      position: relative;
      padding-left: 26px;
      color: var(--text-primary);
      font-size: 15px;
      line-height: 1.75;
      margin-bottom: 10px;
    }
    .solution-features li::before {
      content: '\f058';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      left: 0;
      top: 2px;
      color: var(--accent-blue);
      font-size: 14px;
      text-shadow: 0 0 8px rgba(0, 209, 255, .4);
    }
    .solution-visual {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .08);
      box-shadow: var(--shadow-card);
    }
    .solution-visual img {
      width: 100%;
      height: 260px;
      object-fit: cover;
    }
    .divider-neon {
      height: 1px;
      border: none;
      background: linear-gradient(90deg, transparent, rgba(0, 209, 255, .55), rgba(230, 0, 46, .45), transparent);
      box-shadow: 0 0 12px rgba(0, 209, 255, .15);
    }
    .process-section {
      padding: 100px 0;
      position: relative;
    }
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .process-item {
      position: relative;
      background: rgba(255, 255, 255, .04);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: 20px;
      padding: 32px 26px;
      transition: var(--transition-base);
      backdrop-filter: blur(14px);
    }
    .process-item:hover {
      border-color: rgba(0, 200, 255, .3);
      transform: translateY(-4px);
      box-shadow: 0 0 28px rgba(0, 200, 255, .06);
      background: rgba(255, 255, 255, .06);
    }
    .process-num {
      font-size: 44px;
      font-weight: 800;
      font-variant-numeric: tabular-nums;
      line-height: 1;
      color: rgba(0, 209, 255, .45);
      display: block;
      margin-bottom: 24px;
      letter-spacing: -1px;
      transition: var(--transition-base);
    }
    .process-item:hover .process-num {
      color: var(--accent-blue);
      text-shadow: 0 0 24px rgba(0, 209, 255, .45);
    }
    .process-item h3 {
      font-size: 18px;
      margin-bottom: 10px;
    }
    .process-item p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
    }
    .process-arrow {
      position: absolute;
      right: -20px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--accent-blue);
      font-size: 14px;
      opacity: .5;
      z-index: 2;
    }
    @media (max-width: 991.98px) {
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
      }
      .process-arrow {
        display: none;
      }
    }
    @media (max-width: 575.98px) {
      .process-grid {
        grid-template-columns: 1fr;
      }
    }
    .scenario-section {
      padding: 30px 0 100px;
    }
    .scenario-block {
      margin-bottom: 30px;
      background: rgba(255, 255, 255, .04);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition-base);
    }
    .scenario-block:hover {
      border-color: rgba(0, 200, 255, .28);
      box-shadow: var(--shadow-card);
    }
    .scenario-block .row {
      align-items: stretch;
    }
    .scenario-img-wrap {
      min-height: 280px;
      overflow: hidden;
      position: relative;
    }
    .scenario-img-wrap img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .scenario-block:hover .scenario-img-wrap img {
      transform: scale(1.04);
    }
    .scenario-content {
      padding: 40px 36px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .scenario-content h3 {
      font-size: 23px;
      margin-bottom: 14px;
      line-height: 1.4;
    }
    .scenario-content p {
      color: var(--text-secondary);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .scenario-content ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .scenario-content ul li {
      position: relative;
      padding-left: 24px;
      margin-bottom: 8px;
      color: var(--text-primary);
      font-size: 14.5px;
    }
    .scenario-content ul li::before {
      content: '\f061';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      left: 0;
      top: 1px;
      color: var(--accent-blue);
      font-size: 13px;
    }
    .faq-section {
      padding: 0 0 100px;
    }
    .accordion {
      --bs-accordion-color: var(--text-primary);
      --bs-accordion-bg: rgba(255, 255, 255, .04);
      --bs-accordion-border-color: rgba(255, 255, 255, .08);
      --bs-accordion-border-radius: 18px;
      --bs-accordion-inner-border-radius: 18px;
      --bs-accordion-btn-padding-y: 20px;
      --bs-accordion-btn-padding-x: 24px;
      --bs-accordion-body-padding-y: 4px;
      --bs-accordion-body-padding-x: 24px;
    }
    .accordion-item {
      border: 1px solid rgba(255, 255, 255, .08) !important;
      background: rgba(255, 255, 255, .04) !important;
      border-radius: 18px !important;
      margin-bottom: 16px;
      overflow: hidden;
      backdrop-filter: blur(14px);
      transition: var(--transition-base);
    }
    .accordion-item:hover {
      border-color: rgba(0, 200, 255, .22) !important;
    }
    .accordion-item.active {
      border-color: rgba(230, 0, 46, .08) !important;
      box-shadow: 0 0 24px rgba(0, 0, 0, .15);
    }
    .accordion-button {
      background: transparent !important;
      color: var(--text-primary) !important;
      font-size: 16px;
      font-weight: 600;
      box-shadow: none !important;
      padding: 22px 24px;
      border-left: 3px solid transparent;
      transition: var(--transition-base);
    }
    .accordion-button:not(.collapsed) {
      border-left-color: var(--accent-red);
      box-shadow: inset 0 -1px 0 rgba(255, 255, 255, .04) !important;
      color: var(--accent-red) !important;
      text-shadow: 0 0 12px rgba(230, 0, 46, .2);
    }
    .accordion-button::after {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(232,240,248,.8)'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
      transition: transform .25s ease;
      width: 16px;
      height: 16px;
    }
    .accordion-button:not(.collapsed)::after {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23E6002E'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
      transform: rotate(180deg);
    }
    .accordion-body {
      padding: 6px 24px 24px 27px !important;
      color: var(--text-secondary);
      font-size: 15px;
      line-height: 1.8;
    }
    .accordion-button:focus {
      box-shadow: 0 0 0 4px rgba(0, 209, 255, .12) !important;
      z-index: auto;
    }
    .cta-section {
      position: relative;
      padding: 100px 0;
      background: radial-gradient(ellipse at 20% 50%, rgba(0, 209, 255, .1), transparent 50%),
                  radial-gradient(ellipse at 80% 50%, rgba(230, 0, 46, .1), transparent 50%),
                  var(--bg-primary);
      border-top: 1px solid rgba(255, 255, 255, .06);
    }
    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
                        linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
      background-size: 56px 56px;
      pointer-events: none;
    }
    .cta-section .container {
      position: relative;
      z-index: 2;
    }
    .cta-head {
      text-align: center;
      margin-bottom: 44px;
    }
    .cta-head h2 {
      font-size: 34px;
      margin-bottom: 14px;
    }
    .cta-head p {
      color: var(--text-secondary);
      font-size: 16px;
      max-width: 560px;
      margin: 0 auto;
    }
    .cta-form-wrap {
      max-width: 620px;
      margin: 0 auto;
      background: rgba(255, 255, 255, .045);
      border: 1px solid rgba(255, 255, 255, .09);
      border-radius: 24px;
      padding: 40px 40px 36px;
      backdrop-filter: blur(18px);
      box-shadow: 0 16px 48px rgba(0, 0, 0, .3);
    }
    .form-label {
      color: var(--text-primary);
      font-size: 14px;
      font-weight: 500;
      margin-bottom: 8px;
    }
    .form-control {
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 12px;
      color: var(--text-primary);
      padding: 13px 16px;
      font-size: 15px;
      transition: var(--transition-base);
    }
    .form-control::placeholder {
      color: var(--text-muted);
    }
    .form-control:focus {
      background: rgba(255, 255, 255, .09);
      border-color: rgba(0, 209, 255, .5);
      box-shadow: 0 0 0 4px rgba(0, 209, 255, .12);
      color: var(--text-primary);
    }
    .form-select {
      background-color: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 12px;
      color: var(--text-primary);
      padding: 13px 16px;
      font-size: 15px;
      cursor: pointer;
    }
    .form-select:focus {
      border-color: rgba(0, 209, 255, .5);
      box-shadow: 0 0 0 4px rgba(0, 209, 255, .12);
      background-color: rgba(255, 255, 255, .09);
    }
    .form-select option {
      background: #081422;
      color: var(--text-primary);
    }
    .cta-submit {
      width: 100%;
      margin-top: 8px;
    }
    .form-message {
      display: none;
      text-align: center;
      padding: 18px;
      border-radius: 12px;
      background: rgba(0, 209, 255, .08);
      border: 1px solid rgba(0, 209, 255, .2);
      color: var(--accent-blue);
      font-size: 15px;
      font-weight: 500;
      margin-top: 16px;
    }
    .form-message.show {
      display: block;
    }
    .back-top-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 28px;
      color: var(--text-secondary);
      font-size: 14px;
      transition: var(--transition-base);
    }
    .back-top-link:hover {
      color: var(--accent-blue);
      text-shadow: 0 0 8px rgba(0, 209, 255, .3);
    }
    .site-footer {
      background: #040a13;
      border-top: 1px solid rgba(255, 255, 255, .05);
      padding: 70px 0 0;
    }
    .site-footer::before {
      content: '';
      display: block;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(0, 209, 255, .4), rgba(230, 0, 46, .3), transparent);
      margin-bottom: 0;
    }
    .footer-brand {
      font-size: 21px;
      font-weight: 700;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .footer-brand .brand-icon {
      width: 34px;
      height: 34px;
    }
    .footer-desc {
      color: var(--text-secondary);
      font-size: 14.5px;
      line-height: 1.8;
      margin-bottom: 12px;
      max-width: 340px;
    }
    .footer-col-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-col-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-blue), transparent);
      border-radius: 2px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-secondary);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-base);
      padding: 4px 0;
    }
    .footer-links a i {
      font-size: 11px;
      color: rgba(0, 209, 255, .5);
      transition: var(--transition-base);
    }
    .footer-links a:hover {
      color: var(--accent-blue);
      transform: translateX(4px);
      text-shadow: 0 0 8px rgba(0, 209, 255, .3);
    }
    .footer-links a:hover i {
      transform: translateX(2px);
      color: var(--accent-blue);
    }
    .footer-contact {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-contact li {
      color: var(--text-secondary);
      font-size: 14px;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-contact li i {
      color: rgba(0, 209, 255, .6);
      width: 20px;
      text-align: center;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .06);
      padding: 24px 0;
      margin-top: 50px;
      text-align: center;
    }
    .footer-bottom span {
      color: var(--text-muted);
      font-size: 13px;
    }
    @media (max-width: 991.98px) {
      .page-hero {
        padding: 60px 0 60px;
        min-height: 380px;
      }
      .page-hero h1 {
        font-size: 36px;
      }
      .hero-media img {
        height: 240px;
      }
      .section-pad {
        padding: 70px 0;
      }
      .solution-section {
        padding: 70px 0 10px;
      }
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 767.98px) {
      .page-hero h1 {
        font-size: 32px;
      }
      .hero-lead {
        font-size: 15.5px;
      }
      .section-head h2,
      .cta-head h2 {
        font-size: 28px;
      }
      .solution-block h3 {
        font-size: 21px;
      }
      .scenario-content {
        padding: 28px 24px;
      }
      .scenario-img-wrap {
        min-height: 200px;
      }
      .cta-form-wrap {
        padding: 28px 20px 24px;
      }
      .footer-brand {
        font-size: 19px;
      }
    }
    @media (max-width: 575.98px) {
      .page-hero {
        min-height: 340px;
        padding: 44px 0 50px;
      }
      .page-hero h1 {
        font-size: 28px;
      }
      .hero-stats .stat-num {
        font-size: 23px;
      }
      .hero-stats .stat-label {
        font-size: 12px;
      }
      .hero-btns {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
      }
      .hero-btns .btn {
        width: 100%;
      }
      .section-head {
        margin-bottom: 38px;
      }
      .process-grid {
        grid-template-columns: 1fr;
      }
      .scenario-block .row {
        flex-direction: column;
      }
      .scenario-img-wrap {
        min-height: 180px;
      }
      .scenario-img-wrap img {
        position: relative;
        height: 180px;
      }
      .scenario-reverse .order-comp {
        order: 1;
      }
      .scenario-reverse .order-img {
        order: 0;
      }
    }

/* roulang page: article */
:root {
  --bg-deep: #060D17;
  --bg-body: #081422;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --blue: #00D1FF;
  --blue-deep: #00A3FF;
  --blue-glow: rgba(0,200,255,0.45);
  --red: #E6002E;
  --red-bright: #FF1A3C;
  --red-glow: rgba(230,0,46,0.45);
  --text-main: #E8F0F8;
  --text-sub: #8FA3B8;
  --text-mute: #5A7088;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,0.28);
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition: all .3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(0,209,255,0.08), transparent 60%),
              radial-gradient(900px 500px at 10% 110%, rgba(230,0,46,0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.container { position: relative; z-index: 1; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

/* ======== Header Nav ======== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6,13,23,0.88);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-header::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue) 30%, var(--red) 70%, transparent);
  opacity: 0.9;
}
.main-nav { position: relative; min-height: 72px; }
.navbar-brand { display: inline-flex; align-items: center; font-size: 1.3rem; font-weight: 700; letter-spacing: .02em; color: #fff; padding: 0; }
.navbar-brand:hover { color: var(--blue); }
.brand-icon { width: 36px; height: 36px; margin-right: 10px; filter: drop-shadow(0 0 8px rgba(0,209,255,0.55)); flex: 0 0 auto; }
.navbar-nav { gap: 4px; }
.nav-link { color: var(--text-sub); font-size: .95rem; font-weight: 500; padding: 9px 16px !important; border-radius: var(--radius-sm); position: relative; transition: var(--transition); }
.nav-link:hover { color: var(--blue); background: rgba(0,200,255,0.08); }
.nav-link.active { color: var(--blue); text-shadow: 0 0 14px rgba(0,209,255,0.55); }
.nav-link.active::after { content: ''; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--blue); box-shadow: 0 0 8px var(--blue); }
.nav-cta-btn { margin-left: 10px; }
.navbar-toggler { border: 1px solid rgba(255,255,255,.22); border-radius: 10px; background: rgba(255,255,255,.04); }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(0,209,255,.2); }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(232,240,248,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }

/* ======== Buttons ======== */
.btn { border-radius: var(--radius-sm); font-weight: 600; letter-spacing: .02em; transition: var(--transition); border: none; }
.btn:focus, .btn:active { box-shadow: 0 0 0 3px rgba(0,209,255,.18) !important; }
.btn-cta-red { background: var(--red); color: #fff; padding: 10px 24px; box-shadow: 0 0 18px rgba(230,0,46,.38); }
.btn-cta-red:hover { background: var(--red-bright); color: #fff; transform: translateY(-2px); box-shadow: 0 0 26px rgba(230,0,46,.6); }
.btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,.22); color: var(--text-main); padding: 10px 24px; }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); box-shadow: 0 0 16px rgba(0,209,255,.25); transform: translateY(-2px); }
.btn-lg { padding: 13px 34px; font-size: 1rem; }

/* ======== Breadcrumb ======== */
.article-breadcrumb { padding: 108px 0 8px; font-size: .85rem; color: var(--text-sub); }
.breadcrumb-list { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 0; margin: 0; }
.breadcrumb-list a { color: var(--text-sub); }
.breadcrumb-list a:hover { color: var(--blue); }
.breadcrumb-list .sep { color: var(--text-mute); opacity: .7; }
.breadcrumb-list .current { color: var(--text-mute); max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ======== Article Header ======== */
.article-header { padding: 20px 0 8px; }
.article-title { font-size: clamp(1.8rem, 3.4vw, 2.65rem); font-weight: 700; line-height: 1.35; color: #fff; letter-spacing: .01em; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px; padding: 18px 0 6px; align-items: center; }
.meta-chip { display: inline-flex; align-items: center; gap: 7px; padding: 5px 13px; border-radius: 20px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.07); color: var(--text-sub); font-size: .82rem; }
.meta-chip i { color: var(--blue); }
.meta-chip.cat { background: rgba(0,209,255,.1); border-color: rgba(0,209,255,.2); color: #7FDFFF; font-weight: 500; }

/* ======== Article Body ======== */
.article-wrap { max-width: 760px; margin: 0 auto; padding: 30px 0 20px; }
.article-body {
  background: rgba(255,255,255,.025);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.article-body > *:first-child { margin-top: 0; }
.article-body p { color: var(--text-main); line-height: 1.8; margin-bottom: 1.25rem; font-size: 1rem; }
.article-body h1 { font-size: 1.55rem; font-weight: 700; color: #fff; margin: 2rem 0 1rem; }
.article-body h2 { font-size: 1.6rem; font-weight: 700; color: #fff; margin: 2.2rem 0 1rem; padding-bottom: .45rem; border-bottom: 1px solid rgba(255,255,255,.06); }
.article-body h3 { font-size: 1.3rem; font-weight: 700; color: #fff; margin: 1.8rem 0 .9rem; }
.article-body h4 { font-size: 1.12rem; font-weight: 600; color: var(--blue); margin: 1.5rem 0 .7rem; }
.article-body a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { text-shadow: 0 0 10px rgba(0,209,255,.6); }
.article-body blockquote { border-left: 3px solid var(--red); background: rgba(255,255,255,.03); padding: 16px 22px; border-radius: 0 14px 14px 0; color: var(--text-sub); margin: 1.6rem 0; box-shadow: -6px 0 16px rgba(230,0,46,.08); }
.article-body blockquote p { margin-bottom: 0; color: var(--text-sub); }
.article-body img { border-radius: 16px; margin: 1.5rem 0; width: auto; max-width: 100%; height: auto; border: 1px solid rgba(255,255,255,.05); background: #0A1626; }
.article-body ul, .article-body ol { padding-left: 1.35rem; color: var(--text-main); line-height: 1.85; margin-bottom: 1.25rem; }
.article-body li { margin-bottom: .4rem; }
.article-body li::marker { color: var(--blue); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.6rem 0; border: 1px solid rgba(255,255,255,.07); overflow: hidden; }
.article-body th { background: rgba(0,209,255,.1); color: #7FDFFF; font-weight: 600; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.08); font-size: .92rem; white-space: nowrap; }
.article-body td { padding: 11px 16px; border-bottom: 1px solid rgba(255,255,255,.05); color: var(--text-sub); font-size: .92rem; }
.article-body tr:last-child td { border-bottom: none; }
.article-body code { background: rgba(0,209,255,.1); color: #7FDFFF; border-radius: 6px; padding: 2px 8px; font-size: .88em; }
.article-body hr { border: none; height: 1px; background: rgba(255,255,255,.07); margin: 2rem 0; }

.article-empty { text-align: center; padding: 60px 20px; }
.article-empty h2 { font-size: 1.5rem; color: #fff; margin-bottom: 24px; border: none; }

/* ======== Tags & Back ======== */
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.06); }
.tag-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: var(--radius-sm); background: rgba(0,209,255,.1); border: 1px solid rgba(0,209,255,.18); color: #7FDFFF; font-size: .82rem; transition: var(--transition); }
.tag-chip:hover { background: rgba(0,209,255,.16); border-color: rgba(0,209,255,.3); }
.article-back { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin: 34px 0 8px; flex-wrap: wrap; }
.article-back .btn { padding: 9px 22px; }

/* ======== Related ======== */
.related-section { padding: 56px 0 20px; }
.section-header { margin-bottom: 32px; }
.section-tag { display: inline-block; padding: 5px 14px; border-radius: 20px; background: rgba(0,209,255,.1); border: 1px solid rgba(0,209,255,.18); color: #7FDFFF; font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 14px; }
.section-title { font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 700; color: #fff; margin-bottom: 10px; line-height: 1.4; }
.section-desc { color: var(--text-sub); max-width: 560px; line-height: 1.8; }
.related-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.related-card:hover { transform: translateY(-5px); border-color: rgba(0,209,255,.35); box-shadow: 0 14px 42px rgba(0,0,0,.4), 0 0 18px rgba(0,209,255,.08); }
.related-cover { aspect-ratio: 16/9; overflow: hidden; background: #0A1626; }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-body { padding: 24px; }
.related-body h3 { font-size: 1.12rem; font-weight: 700; color: #fff; line-height: 1.5; margin: 0 0 10px; }
.related-card:hover .related-body h3 { color: var(--blue); }
.related-body p { color: var(--text-sub); font-size: .9rem; line-height: 1.75; margin-bottom: 16px; }
.related-meta { display: flex; align-items: center; gap: 12px; color: var(--text-mute); font-size: .82rem; flex-wrap: wrap; }
.related-date { display: inline-flex; align-items: center; gap: 5px; }
.related-link { color: var(--blue); font-weight: 600; font-size: .9rem; display: inline-flex; align-items: center; gap: 6px; }
.related-link i { transition: transform .3s ease; }
.related-card:hover .related-link i { transform: translateX(4px); }

/* ======== CTA ======== */
.cta-section {
  padding: 70px 0;
  margin-top: 46px;
  background:
    linear-gradient(rgba(6,13,23,.9), rgba(6,13,23,.94)),
    url('/assets/images/backpic/back-2.webp') center/cover fixed;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.cta-section .section-title { margin-bottom: 14px; }
.cta-desc { color: var(--text-sub); max-width: 620px; margin: 0 auto 28px; line-height: 1.8; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ======== Footer ======== */
.site-footer { background: #040A12; padding: 64px 0 0; border-top: 1px solid rgba(255,255,255,.05); position: relative; }
.site-footer::before { content: ''; position: absolute; top: -1px; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(0,209,255,.4), rgba(230,0,46,.4), transparent); }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-brand .brand-icon { width: 34px; height: 34px; }
.footer-desc { color: var(--text-sub); font-size: .9rem; line-height: 1.8; max-width: 360px; }
.footer-col-title { font-size: .98rem; font-weight: 600; color: #fff; margin-bottom: 18px; letter-spacing: .02em; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-sub); font-size: .88rem; display: inline-flex; align-items: center; gap: 7px; transition: var(--transition); }
.footer-links a i { font-size: .68rem; color: var(--text-mute); transition: var(--transition); }
.footer-links a:hover { color: var(--blue); padding-left: 3px; }
.footer-links a:hover i { color: var(--blue); transform: translateX(2px); }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { color: var(--text-sub); font-size: .9rem; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--blue); width: 18px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.05); margin-top: 44px; padding: 20px 0; text-align: center; color: var(--text-mute); font-size: .82rem; }

/* ======== Responsive ======== */
@media (max-width: 991.98px) {
  .article-breadcrumb { padding-top: 92px; }
  .main-nav { min-height: 64px; }
  .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6,13,23,.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-radius: 0 0 18px 18px;
    padding: 16px 20px 22px;
    box-shadow: 0 30px 50px rgba(0,0,0,.55);
    border-bottom: 1px solid rgba(0,209,255,.15);
  }
  .navbar-nav { gap: 6px; }
  .nav-item { margin: 4px 0; }
  .nav-link { padding: 10px 18px !important; }
  .nav-cta-btn { margin: 10px 0 0; }
  .nav-cta-btn .btn { width: 100%; justify-content: center; }
}
@media (max-width: 767.98px) {
  .article-title { font-size: 1.65rem; }
  .article-wrap { padding-top: 18px; }
  .article-body { padding: 22px 18px; }
  .cta-section { padding: 50px 0; background-attachment: scroll; }
  .site-footer { padding-top: 50px; }
}
@media (max-width: 575.98px) {
  .article-breadcrumb { padding-top: 84px; font-size: .78rem; }
  .breadcrumb-list { gap: 5px; }
  .breadcrumb-list .current { max-width: 130px; }
  .meta-chip { font-size: .76rem; padding: 4px 10px; gap: 5px; }
  .article-title { font-size: 1.42rem; line-height: 1.4; }
  .article-back { flex-direction: column; align-items: flex-start; }
  .related-body { padding: 18px; }
  .cta-btns .btn { width: 100%; }
}